ijkplayer播放器的read_thread数据接受线程在处理音频的时候如果首个数据包没有发现audio stream 以后就不会有音频数据

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本文对应的ijkplayer版本为: k0.7.9

ijkplayer播放器在拉到第一条数据流的时候如果没有解出音频包,ijkplayer 就一直没有声音了!
正常能播放时 ijkplayer 解到的首包 包含音频stream 和视频stream

ijkplayer播放器的read_thread数据接受线程在处理音频的时候如果首个数据包没有发现audio stream 以后就不会有音频数据了 这是个bug 解决方法如下:

        pkt->flags = 0;        ret = av_read_frame(ic, pkt);                    if (is->audio_stream >= 0) {            //之前已经发现音频信息        }else{            if (!ffp->audio_disable){                av_log(NULL, AV_LOG_INFO, "is->audio_stream = %d\n", is->audio_stream);#if 1                int audio_stream_idx = av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO,                                                           st_index[AVMEDIA_TYPE_AUDIO],                                                           st_index[AVMEDIA_TYPE_VIDEO],                                                           NULL, 0);                if (audio_stream_idx >= 0){                    //之前没有发现音频信息                    av_log(NULL, AV_LOG_WARNING, "重要信息发现 -> 音频流\n");                    refind_audio_stream(ffp, ic, audio_stream_idx);                }                av_log(NULL, AV_LOG_INFO, "is->audio_stream = %d\n", is->audio_stream);#endif            }        }

//static int refind audio streamstatic int refind_audio_stream(FFPlayer *ffp, AVFormatContext *ic, int stream_index) {    /* open the streams */    if (stream_index >= 0) {#warning 测试代码        //打开音频流        stream_component_open(ffp, stream_index);        av_log(NULL, AV_LOG_INFO, "打开音频流stream\n");    }    ijkmeta_set_avformat_context_l(ffp->meta, ic);    if (stream_index >= 0){        ijkmeta_set_int64_l(ffp->meta, IJKM_KEY_AUDIO_STREAM, stream_index);        av_log(NULL, AV_LOG_INFO, "音频原始数据初始化\n");    }    return 0;}


//直接用下面的代码替换ff_play.c 文件就可以了

/* * Copyright (c) 2003 Bilibili * Copyright (c) 2003 Fabrice Bellard * Copyright (c) 2013 Zhang Rui <bbcallen@gmail.com> * * This file is part of ijkPlayer. * * ijkPlayer is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * ijkPlayer is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with ijkPlayer; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */#include "ff_ffplay.h"/** * @file * simple media player based on the FFmpeg libraries */#include "config.h"#include <inttypes.h>#include <math.h>#include <limits.h>#include <signal.h>#include <stdint.h>#include "libavutil/avstring.h"#include "libavutil/eval.h"#include "libavutil/mathematics.h"#include "libavutil/pixdesc.h"#include "libavutil/imgutils.h"#include "libavutil/dict.h"#include "libavutil/parseutils.h"#include "libavutil/samplefmt.h"#include "libavutil/avassert.h"#include "libavutil/time.h"#include "libavformat/avformat.h"#if CONFIG_AVDEVICE#include "libavdevice/avdevice.h"#endif#include "libswscale/swscale.h"#include "libavutil/opt.h"#include "libavcodec/avfft.h"#include "libswresample/swresample.h"#if CONFIG_AVFILTER# include "libavcodec/avcodec.h"# include "libavfilter/avfilter.h"# include "libavfilter/buffersink.h"# include "libavfilter/buffersrc.h"#endif#include "ijksdl/ijksdl_log.h"#include "ijkavformat/ijkavformat.h"#include "ff_cmdutils.h"#include "ff_fferror.h"#include "ff_ffpipeline.h"#include "ff_ffpipenode.h"#include "ff_ffplay_debug.h"#include "ijkmeta.h"#include "ijkversion.h"#include <stdatomic.h>#if defined(__ANDROID__)#include "ijksoundtouch/ijksoundtouch_wrap.h"#endif#ifndef AV_CODEC_FLAG2_FAST#define AV_CODEC_FLAG2_FAST CODEC_FLAG2_FAST#endif#ifndef AV_CODEC_CAP_DR1#define AV_CODEC_CAP_DR1 CODEC_CAP_DR1#endif// FIXME: 9 work around NDKr8e or gcc4.7 bug// isnan() may not recognize some double NAN, so we test both double and float#if defined(__ANDROID__)#ifdef isnan#undef isnan#endif#define isnan(x) (isnan((double)(x)) || isnanf((float)(x)))#endif#if defined(__ANDROID__)#define printf(...) ALOGD(__VA_ARGS__)#endif#define FFP_IO_STAT_STEP (50 * 1024)#define FFP_BUF_MSG_PERIOD (3)// static const AVOption ffp_context_options[] = ...#include "ff_ffplay_options.h"static AVPacket flush_pkt;#if CONFIG_AVFILTER// FFP_MERGE: opt_add_vfilter#endif#define IJKVERSION_GET_MAJOR(x)     ((x >> 16) & 0xFF)#define IJKVERSION_GET_MINOR(x)     ((x >>  8) & 0xFF)#define IJKVERSION_GET_MICRO(x)     ((x      ) & 0xFF)#if CONFIG_AVFILTERstatic inlineint cmp_audio_fmts(enum AVSampleFormat fmt1, int64_t channel_count1,                   enum AVSampleFormat fmt2, int64_t channel_count2){    /* If channel count == 1, planar and non-planar formats are the same */    if (channel_count1 == 1 && channel_count2 == 1)        return av_get_packed_sample_fmt(fmt1) != av_get_packed_sample_fmt(fmt2);    else        return channel_count1 != channel_count2 || fmt1 != fmt2;}static inlineint64_t get_valid_channel_layout(int64_t channel_layout, int channels){    if (channel_layout && av_get_channel_layout_nb_channels(channel_layout) == channels)        return channel_layout;    else        return 0;}#endifstatic void free_picture(Frame *vp);static int packet_queue_put_private(PacketQueue *q, AVPacket *pkt){    MyAVPacketList *pkt1;    if (q->abort_request)       return -1;#ifdef FFP_MERGE    pkt1 = av_malloc(sizeof(MyAVPacketList));#else    pkt1 = q->recycle_pkt;    if (pkt1) {        q->recycle_pkt = pkt1->next;        q->recycle_count++;    } else {        q->alloc_count++;        pkt1 = av_malloc(sizeof(MyAVPacketList));    }#ifdef FFP_SHOW_PKT_RECYCLE    int total_count = q->recycle_count + q->alloc_count;    if (!(total_count % 50)) {        av_log(ffp, AV_LOG_DEBUG, "pkt-recycle \t%d + \t%d = \t%d\n", q->recycle_count, q->alloc_count, total_count);    }#endif#endif    if (!pkt1)        return -1;    pkt1->pkt = *pkt;    pkt1->next = NULL;    if (pkt == &flush_pkt)        q->serial++;    pkt1->serial = q->serial;    if (!q->last_pkt)        q->first_pkt = pkt1;    else        q->last_pkt->next = pkt1;    q->last_pkt = pkt1;    q->nb_packets++;    q->size += pkt1->pkt.size + sizeof(*pkt1);    q->duration += FFMAX(pkt1->pkt.duration, MIN_PKT_DURATION);    /* XXX: should duplicate packet data in DV case */    SDL_CondSignal(q->cond);    return 0;}static int packet_queue_put(PacketQueue *q, AVPacket *pkt){    int ret;    SDL_LockMutex(q->mutex);    ret = packet_queue_put_private(q, pkt);    SDL_UnlockMutex(q->mutex);    if (pkt != &flush_pkt && ret < 0)        av_packet_unref(pkt);    return ret;}static int packet_queue_put_nullpacket(PacketQueue *q, int stream_index){    AVPacket pkt1, *pkt = &pkt1;    av_init_packet(pkt);    pkt->data = NULL;    pkt->size = 0;    pkt->stream_index = stream_index;    return packet_queue_put(q, pkt);}/* packet queue handling */static int packet_queue_init(PacketQueue *q){    memset(q, 0, sizeof(PacketQueue));    q->mutex = SDL_CreateMutex();    if (!q->mutex) {        av_log(NULL, AV_LOG_FATAL, "SDL_CreateMutex(): %s\n", SDL_GetError());        return AVERROR(ENOMEM);    }    q->cond = SDL_CreateCond();    if (!q->cond) {        av_log(NULL, AV_LOG_FATAL, "SDL_CreateCond(): %s\n", SDL_GetError());        return AVERROR(ENOMEM);    }    q->abort_request = 1;    return 0;}static void packet_queue_flush(PacketQueue *q){    MyAVPacketList *pkt, *pkt1;    SDL_LockMutex(q->mutex);    for (pkt = q->first_pkt; pkt; pkt = pkt1) {        pkt1 = pkt->next;        av_packet_unref(&pkt->pkt);#ifdef FFP_MERGE        av_freep(&pkt);#else        pkt->next = q->recycle_pkt;        q->recycle_pkt = pkt;#endif    }    q->last_pkt = NULL;    q->first_pkt = NULL;    q->nb_packets = 0;    q->size = 0;    q->duration = 0;    SDL_UnlockMutex(q->mutex);}static void packet_queue_destroy(PacketQueue *q){    packet_queue_flush(q);    SDL_LockMutex(q->mutex);    while(q->recycle_pkt) {        MyAVPacketList *pkt = q->recycle_pkt;        if (pkt)            q->recycle_pkt = pkt->next;        av_freep(&pkt);    }    SDL_UnlockMutex(q->mutex);    SDL_DestroyMutex(q->mutex);    SDL_DestroyCond(q->cond);}static void packet_queue_abort(PacketQueue *q){    SDL_LockMutex(q->mutex);    q->abort_request = 1;    SDL_CondSignal(q->cond);    SDL_UnlockMutex(q->mutex);}static void packet_queue_start(PacketQueue *q){    SDL_LockMutex(q->mutex);    q->abort_request = 0;    packet_queue_put_private(q, &flush_pkt);    SDL_UnlockMutex(q->mutex);}/* return < 0 if aborted, 0 if no packet and > 0 if packet.  */static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block, int *serial){    MyAVPacketList *pkt1;    int ret;    SDL_LockMutex(q->mutex);    for (;;) {        if (q->abort_request) {            ret = -1;            break;        }        pkt1 = q->first_pkt;        if (pkt1) {            q->first_pkt = pkt1->next;            if (!q->first_pkt)                q->last_pkt = NULL;            q->nb_packets--;            q->size -= pkt1->pkt.size + sizeof(*pkt1);            q->duration -= FFMAX(pkt1->pkt.duration, MIN_PKT_DURATION);            *pkt = pkt1->pkt;            if (serial)                *serial = pkt1->serial;#ifdef FFP_MERGE            av_free(pkt1);#else            pkt1->next = q->recycle_pkt;            q->recycle_pkt = pkt1;#endif            ret = 1;            break;        } else if (!block) {            ret = 0;            break;        } else {            SDL_CondWait(q->cond, q->mutex);        }    }    SDL_UnlockMutex(q->mutex);    return ret;}static int packet_queue_get_or_buffering(FFPlayer *ffp, PacketQueue *q, AVPacket *pkt, int *serial, int *finished){    assert(finished);    if (!ffp->packet_buffering)        return packet_queue_get(q, pkt, 1, serial);    while (1) {        int new_packet = packet_queue_get(q, pkt, 0, serial);        if (new_packet < 0)            return -1;        else if (new_packet == 0) {            if (q->is_buffer_indicator && !*finished)                ffp_toggle_buffering(ffp, 1);            new_packet = packet_queue_get(q, pkt, 1, serial);            if (new_packet < 0)                return -1;        }        if (*finished == *serial) {            av_packet_unref(pkt);            continue;        }        else            break;    }    return 1;}static void decoder_init(Decoder *d, AVCodecContext *avctx, PacketQueue *queue, SDL_cond *empty_queue_cond) {    memset(d, 0, sizeof(Decoder));    d->avctx = avctx;    d->queue = queue;    d->empty_queue_cond = empty_queue_cond;    d->start_pts = AV_NOPTS_VALUE;    d->first_frame_decoded_time = SDL_GetTickHR();    d->first_frame_decoded = 0;    SDL_ProfilerReset(&d->decode_profiler, -1);}static int decoder_decode_frame(FFPlayer *ffp, Decoder *d, AVFrame *frame, AVSubtitle *sub) {    int got_frame = 0;    do {        int ret = -1;        if (d->queue->abort_request)            return -1;        if (!d->packet_pending || d->queue->serial != d->pkt_serial) {            AVPacket pkt;            do {                if (d->queue->nb_packets == 0)                    SDL_CondSignal(d->empty_queue_cond);                if (packet_queue_get_or_buffering(ffp, d->queue, &pkt, &d->pkt_serial, &d->finished) < 0)                    return -1;                if (pkt.data == flush_pkt.data) {                    avcodec_flush_buffers(d->avctx);                    d->finished = 0;                    d->next_pts = d->start_pts;                    d->next_pts_tb = d->start_pts_tb;                }            } while (pkt.data == flush_pkt.data || d->queue->serial != d->pkt_serial);            av_packet_unref(&d->pkt);            d->pkt_temp = d->pkt = pkt;            d->packet_pending = 1;        }        switch (d->avctx->codec_type) {            case AVMEDIA_TYPE_VIDEO: {                ret = avcodec_decode_video2(d->avctx, frame, &got_frame, &d->pkt_temp);                if (got_frame) {                    ffp->stat.vdps = SDL_SpeedSamplerAdd(&ffp->vdps_sampler, FFP_SHOW_VDPS_AVCODEC, "vdps[avcodec]");                    if (ffp->decoder_reorder_pts == -1) {                        frame->pts = av_frame_get_best_effort_timestamp(frame);                    } else if (!ffp->decoder_reorder_pts) {                        frame->pts = frame->pkt_dts;                    }                }                }                break;            case AVMEDIA_TYPE_AUDIO:                ret = avcodec_decode_audio4(d->avctx, frame, &got_frame, &d->pkt_temp);                if (got_frame) {                    AVRational tb = (AVRational){1, frame->sample_rate};                    if (frame->pts != AV_NOPTS_VALUE)                        frame->pts = av_rescale_q(frame->pts, av_codec_get_pkt_timebase(d->avctx), tb);                    else if (d->next_pts != AV_NOPTS_VALUE)                        frame->pts = av_rescale_q(d->next_pts, d->next_pts_tb, tb);                    if (frame->pts != AV_NOPTS_VALUE) {                        d->next_pts = frame->pts + frame->nb_samples;                        d->next_pts_tb = tb;                    }                }                break;            case AVMEDIA_TYPE_SUBTITLE:                ret = avcodec_decode_subtitle2(d->avctx, sub, &got_frame, &d->pkt_temp);                break;            default:                break;        }        if (ret < 0) {            d->packet_pending = 0;        } else {            d->pkt_temp.dts =            d->pkt_temp.pts = AV_NOPTS_VALUE;            if (d->pkt_temp.data) {                if (d->avctx->codec_type != AVMEDIA_TYPE_AUDIO)                    ret = d->pkt_temp.size;                d->pkt_temp.data += ret;                d->pkt_temp.size -= ret;                if (d->pkt_temp.size <= 0)                    d->packet_pending = 0;            } else {                if (!got_frame) {                    d->packet_pending = 0;                    d->finished = d->pkt_serial;                }            }        }    } while (!got_frame && !d->finished);    return got_frame;}static void decoder_destroy(Decoder *d) {    av_packet_unref(&d->pkt);    avcodec_free_context(&d->avctx);}static void frame_queue_unref_item(Frame *vp){    av_frame_unref(vp->frame);    SDL_VoutUnrefYUVOverlay(vp->bmp);    avsubtitle_free(&vp->sub);}static int frame_queue_init(FrameQueue *f, PacketQueue *pktq, int max_size, int keep_last){    int i;    memset(f, 0, sizeof(FrameQueue));    if (!(f->mutex = SDL_CreateMutex())) {        av_log(NULL, AV_LOG_FATAL, "SDL_CreateMutex(): %s\n", SDL_GetError());        return AVERROR(ENOMEM);    }    if (!(f->cond = SDL_CreateCond())) {        av_log(NULL, AV_LOG_FATAL, "SDL_CreateCond(): %s\n", SDL_GetError());        return AVERROR(ENOMEM);    }    f->pktq = pktq;    f->max_size = FFMIN(max_size, FRAME_QUEUE_SIZE);    f->keep_last = !!keep_last;    for (i = 0; i < f->max_size; i++)        if (!(f->queue[i].frame = av_frame_alloc()))            return AVERROR(ENOMEM);    return 0;}static void frame_queue_destory(FrameQueue *f){    int i;    for (i = 0; i < f->max_size; i++) {        Frame *vp = &f->queue[i];        frame_queue_unref_item(vp);        av_frame_free(&vp->frame);        free_picture(vp);    }    SDL_DestroyMutex(f->mutex);    SDL_DestroyCond(f->cond);}static void frame_queue_signal(FrameQueue *f){    SDL_LockMutex(f->mutex);    SDL_CondSignal(f->cond);    SDL_UnlockMutex(f->mutex);}static Frame *frame_queue_peek(FrameQueue *f){    return &f->queue[(f->rindex + f->rindex_shown) % f->max_size];}static Frame *frame_queue_peek_next(FrameQueue *f){    return &f->queue[(f->rindex + f->rindex_shown + 1) % f->max_size];}static Frame *frame_queue_peek_last(FrameQueue *f){    return &f->queue[f->rindex];}static Frame *frame_queue_peek_writable(FrameQueue *f){    /* wait until we have space to put a new frame */    SDL_LockMutex(f->mutex);    while (f->size >= f->max_size &&           !f->pktq->abort_request) {        SDL_CondWait(f->cond, f->mutex);    }    SDL_UnlockMutex(f->mutex);    if (f->pktq->abort_request)        return NULL;    return &f->queue[f->windex];}static Frame *frame_queue_peek_readable(FrameQueue *f){    /* wait until we have a readable a new frame */    SDL_LockMutex(f->mutex);    while (f->size - f->rindex_shown <= 0 &&           !f->pktq->abort_request) {        SDL_CondWait(f->cond, f->mutex);    }    SDL_UnlockMutex(f->mutex);    if (f->pktq->abort_request)        return NULL;    return &f->queue[(f->rindex + f->rindex_shown) % f->max_size];}static void frame_queue_push(FrameQueue *f){    if (++f->windex == f->max_size)        f->windex = 0;    SDL_LockMutex(f->mutex);    f->size++;    SDL_CondSignal(f->cond);    SDL_UnlockMutex(f->mutex);}static void frame_queue_next(FrameQueue *f){    if (f->keep_last && !f->rindex_shown) {        f->rindex_shown = 1;        return;    }    frame_queue_unref_item(&f->queue[f->rindex]);    if (++f->rindex == f->max_size)        f->rindex = 0;    SDL_LockMutex(f->mutex);    f->size--;    SDL_CondSignal(f->cond);    SDL_UnlockMutex(f->mutex);}/* return the number of undisplayed frames in the queue */static int frame_queue_nb_remaining(FrameQueue *f){    return f->size - f->rindex_shown;}/* return last shown position */#ifdef FFP_MERGEstatic int64_t frame_queue_last_pos(FrameQueue *f){    Frame *fp = &f->queue[f->rindex];    if (f->rindex_shown && fp->serial == f->pktq->serial)        return fp->pos;    else        return -1;}#endifstatic void decoder_abort(Decoder *d, FrameQueue *fq){    packet_queue_abort(d->queue);    frame_queue_signal(fq);    SDL_WaitThread(d->decoder_tid, NULL);    d->decoder_tid = NULL;    packet_queue_flush(d->queue);}// FFP_MERGE: fill_rectangle// FFP_MERGE: fill_border// FFP_MERGE: ALPHA_BLEND// FFP_MERGE: RGBA_IN// FFP_MERGE: YUVA_IN// FFP_MERGE: YUVA_OUT// FFP_MERGE: BPP// FFP_MERGE: blend_subrectstatic void free_picture(Frame *vp){    if (vp->bmp) {        SDL_VoutFreeYUVOverlay(vp->bmp);        vp->bmp = NULL;    }}// FFP_MERGE: realloc_texture// FFP_MERGE: calculate_display_rect// FFP_MERGE: upload_texture// FFP_MERGE: video_image_displaystatic size_t parse_ass_subtitle(const char *ass, char *output){    char *tok = NULL;    tok = strchr(ass, ':'); if (tok) tok += 1; // skip event    tok = strchr(tok, ','); if (tok) tok += 1; // skip layer    tok = strchr(tok, ','); if (tok) tok += 1; // skip start_time    tok = strchr(tok, ','); if (tok) tok += 1; // skip end_time    tok = strchr(tok, ','); if (tok) tok += 1; // skip style    tok = strchr(tok, ','); if (tok) tok += 1; // skip name    tok = strchr(tok, ','); if (tok) tok += 1; // skip margin_l    tok = strchr(tok, ','); if (tok) tok += 1; // skip margin_r    tok = strchr(tok, ','); if (tok) tok += 1; // skip margin_v    tok = strchr(tok, ','); if (tok) tok += 1; // skip effect    if (tok) {        char *text = tok;        size_t idx = 0;        do {            char *found = strstr(text, "\\N");            if (found) {                size_t n = found - text;                memcpy(output+idx, text, n);                output[idx + n] = '\n';                idx = n + 1;                text = found + 2;            }            else {                size_t left_text_len = strlen(text);                memcpy(output+idx, text, left_text_len);                if (output[idx + left_text_len - 1] == '\n')                    output[idx + left_text_len - 1] = '\0';                else                    output[idx + left_text_len] = '\0';                break;            }        } while(1);        return strlen(output) + 1;    }    return 0;}static void video_image_display2(FFPlayer *ffp){    VideoState *is = ffp->is;    Frame *vp;    Frame *sp = NULL;    vp = frame_queue_peek_last(&is->pictq);    int latest_seek_load_serial = __atomic_exchange_n(&(is->latest_seek_load_serial), -1, memory_order_seq_cst);    if (latest_seek_load_serial == vp->serial)        ffp->stat.latest_seek_load_duration = (av_gettime() - is->latest_seek_load_start_at) / 1000;    if (vp->bmp) {        if (is->subtitle_st) {            if (frame_queue_nb_remaining(&is->subpq) > 0) {                sp = frame_queue_peek(&is->subpq);                if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000)) {                    if (!sp->uploaded) {                        if (sp->sub.num_rects > 0) {                            char buffered_text[4096];                            if (sp->sub.rects[0]->text) {                                strncpy(buffered_text, sp->sub.rects[0]->text, 4096);                            }                            else if (sp->sub.rects[0]->ass) {                                parse_ass_subtitle(sp->sub.rects[0]->ass, buffered_text);                            }                            ffp_notify_msg4(ffp, FFP_MSG_TIMED_TEXT, 0, 0, buffered_text, sizeof(buffered_text));                        }                        sp->uploaded = 1;                    }                }            }        }        SDL_VoutDisplayYUVOverlay(ffp->vout, vp->bmp);        ffp->stat.vfps = SDL_SpeedSamplerAdd(&ffp->vfps_sampler, FFP_SHOW_VFPS_FFPLAY, "vfps[ffplay]");        if (!ffp->first_video_frame_rendered) {            ffp->first_video_frame_rendered = 1;            ffp_notify_msg1(ffp, FFP_MSG_VIDEO_RENDERING_START);        }    }}// FFP_MERGE: compute_mod// FFP_MERGE: video_audio_displaystatic void stream_component_close(FFPlayer *ffp, int stream_index){    VideoState *is = ffp->is;    AVFormatContext *ic = is->ic;    AVCodecParameters *codecpar;    if (stream_index < 0 || stream_index >= ic->nb_streams)        return;    codecpar = ic->streams[stream_index]->codecpar;    switch (codecpar->codec_type) {    case AVMEDIA_TYPE_AUDIO:        decoder_abort(&is->auddec, &is->sampq);        SDL_AoutCloseAudio(ffp->aout);        decoder_destroy(&is->auddec);        swr_free(&is->swr_ctx);        av_freep(&is->audio_buf1);        is->audio_buf1_size = 0;        is->audio_buf = NULL;#ifdef FFP_MERGE        if (is->rdft) {            av_rdft_end(is->rdft);            av_freep(&is->rdft_data);            is->rdft = NULL;            is->rdft_bits = 0;        }#endif        break;    case AVMEDIA_TYPE_VIDEO:        decoder_abort(&is->viddec, &is->pictq);        decoder_destroy(&is->viddec);        break;    case AVMEDIA_TYPE_SUBTITLE:        decoder_abort(&is->subdec, &is->subpq);        decoder_destroy(&is->subdec);        break;    default:        break;    }    ic->streams[stream_index]->discard = AVDISCARD_ALL;    switch (codecpar->codec_type) {    case AVMEDIA_TYPE_AUDIO:        is->audio_st = NULL;        is->audio_stream = -1;        break;    case AVMEDIA_TYPE_VIDEO:        is->video_st = NULL;        is->video_stream = -1;        break;    case AVMEDIA_TYPE_SUBTITLE:        is->subtitle_st = NULL;        is->subtitle_stream = -1;        break;    default:        break;    }}static void stream_close(FFPlayer *ffp){    VideoState *is = ffp->is;    /* XXX: use a special url_shutdown call to abort parse cleanly */    is->abort_request = 1;    packet_queue_abort(&is->videoq);    packet_queue_abort(&is->audioq);    av_log(NULL, AV_LOG_DEBUG, "wait for read_tid\n");    SDL_WaitThread(is->read_tid, NULL);    /* close each stream */    if (is->audio_stream >= 0)        stream_component_close(ffp, is->audio_stream);    if (is->video_stream >= 0)        stream_component_close(ffp, is->video_stream);    if (is->subtitle_stream >= 0)        stream_component_close(ffp, is->subtitle_stream);    avformat_close_input(&is->ic);    av_log(NULL, AV_LOG_DEBUG, "wait for video_refresh_tid\n");    SDL_WaitThread(is->video_refresh_tid, NULL);    packet_queue_destroy(&is->videoq);    packet_queue_destroy(&is->audioq);    packet_queue_destroy(&is->subtitleq);    /* free all pictures */    frame_queue_destory(&is->pictq);    frame_queue_destory(&is->sampq);    frame_queue_destory(&is->subpq);    SDL_DestroyCond(is->audio_accurate_seek_cond);    SDL_DestroyCond(is->video_accurate_seek_cond);    SDL_DestroyCond(is->continue_read_thread);    SDL_DestroyMutex(is->accurate_seek_mutex);    SDL_DestroyMutex(is->play_mutex);#if !CONFIG_AVFILTER    sws_freeContext(is->img_convert_ctx);#endif#ifdef FFP_MERGE    sws_freeContext(is->sub_convert_ctx);#endif#if defined(__ANDROID__)    if (ffp->soundtouch_enable && is->handle != NULL) {        ijk_soundtouch_destroy(is->handle);    }#endif    av_free(is->filename);    av_free(is);    ffp->is = NULL;}// FFP_MERGE: do_exit// FFP_MERGE: sigterm_handler// FFP_MERGE: video_open// FFP_MERGE: video_display/* display the current picture, if any */static void video_display2(FFPlayer *ffp){    VideoState *is = ffp->is;    if (is->video_st)        video_image_display2(ffp);}static double get_clock(Clock *c){    if (*c->queue_serial != c->serial)        return NAN;    if (c->paused) {        return c->pts;    } else {        double time = av_gettime_relative() / 1000000.0;        return c->pts_drift + time - (time - c->last_updated) * (1.0 - c->speed);    }}static void set_clock_at(Clock *c, double pts, int serial, double time){    c->pts = pts;    c->last_updated = time;    c->pts_drift = c->pts - time;    c->serial = serial;}static void set_clock(Clock *c, double pts, int serial){    double time = av_gettime_relative() / 1000000.0;    set_clock_at(c, pts, serial, time);}static void set_clock_speed(Clock *c, double speed){    set_clock(c, get_clock(c), c->serial);    c->speed = speed;}static void init_clock(Clock *c, int *queue_serial){    c->speed = 1.0;    c->paused = 0;    c->queue_serial = queue_serial;    set_clock(c, NAN, -1);}static void sync_clock_to_slave(Clock *c, Clock *slave){    double clock = get_clock(c);    double slave_clock = get_clock(slave);    if (!isnan(slave_clock) && (isnan(clock) || fabs(clock - slave_clock) > AV_NOSYNC_THRESHOLD))        set_clock(c, slave_clock, slave->serial);}static int get_master_sync_type(VideoState *is) {    if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {        if (is->video_st)            return AV_SYNC_VIDEO_MASTER;        else            return AV_SYNC_AUDIO_MASTER;    } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {        if (is->audio_st)            return AV_SYNC_AUDIO_MASTER;        else            return AV_SYNC_EXTERNAL_CLOCK;    } else {        return AV_SYNC_EXTERNAL_CLOCK;    }}/* get the current master clock value */static double get_master_clock(VideoState *is){    double val;    switch (get_master_sync_type(is)) {        case AV_SYNC_VIDEO_MASTER:            val = get_clock(&is->vidclk);            break;        case AV_SYNC_AUDIO_MASTER:            val = get_clock(&is->audclk);            break;        default:            val = get_clock(&is->extclk);            break;    }    return val;}static void check_external_clock_speed(VideoState *is) {   if ((is->video_stream >= 0 && is->videoq.nb_packets <= EXTERNAL_CLOCK_MIN_FRAMES) ||       (is->audio_stream >= 0 && is->audioq.nb_packets <= EXTERNAL_CLOCK_MIN_FRAMES)) {       set_clock_speed(&is->extclk, FFMAX(EXTERNAL_CLOCK_SPEED_MIN, is->extclk.speed - EXTERNAL_CLOCK_SPEED_STEP));   } else if ((is->video_stream < 0 || is->videoq.nb_packets > EXTERNAL_CLOCK_MAX_FRAMES) &&              (is->audio_stream < 0 || is->audioq.nb_packets > EXTERNAL_CLOCK_MAX_FRAMES)) {       set_clock_speed(&is->extclk, FFMIN(EXTERNAL_CLOCK_SPEED_MAX, is->extclk.speed + EXTERNAL_CLOCK_SPEED_STEP));   } else {       double speed = is->extclk.speed;       if (speed != 1.0)           set_clock_speed(&is->extclk, speed + EXTERNAL_CLOCK_SPEED_STEP * (1.0 - speed) / fabs(1.0 - speed));   }}/* seek in the stream */static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes){    if (!is->seek_req) {        is->seek_pos = pos;        is->seek_rel = rel;        is->seek_flags &= ~AVSEEK_FLAG_BYTE;        if (seek_by_bytes)            is->seek_flags |= AVSEEK_FLAG_BYTE;        is->seek_req = 1;        SDL_CondSignal(is->continue_read_thread);    }}/* pause or resume the video */static void stream_toggle_pause_l(FFPlayer *ffp, int pause_on){    VideoState *is = ffp->is;    if (is->paused && !pause_on) {        is->frame_timer += av_gettime_relative() / 1000000.0 - is->vidclk.last_updated;#ifdef FFP_MERGE        if (is->read_pause_return != AVERROR(ENOSYS)) {            is->vidclk.paused = 0;        }#endif        set_clock(&is->vidclk, get_clock(&is->vidclk), is->vidclk.serial);    } else {    }    set_clock(&is->extclk, get_clock(&is->extclk), is->extclk.serial);    is->paused = is->audclk.paused = is->vidclk.paused = is->extclk.paused = pause_on;    SDL_AoutPauseAudio(ffp->aout, pause_on);}static void stream_update_pause_l(FFPlayer *ffp){    VideoState *is = ffp->is;    if (!is->step && (is->pause_req || is->buffering_on)) {        stream_toggle_pause_l(ffp, 1);    } else {        stream_toggle_pause_l(ffp, 0);    }}static void toggle_pause_l(FFPlayer *ffp, int pause_on){    VideoState *is = ffp->is;    is->pause_req = pause_on;    ffp->auto_resume = !pause_on;    stream_update_pause_l(ffp);    is->step = 0;}static void toggle_pause(FFPlayer *ffp, int pause_on){    SDL_LockMutex(ffp->is->play_mutex);    toggle_pause_l(ffp, pause_on);    SDL_UnlockMutex(ffp->is->play_mutex);}// FFP_MERGE: toggle_mute// FFP_MERGE: update_volumestatic void step_to_next_frame_l(FFPlayer *ffp){    VideoState *is = ffp->is;    /* if the stream is paused unpause it, then step */    if (is->paused)        stream_toggle_pause_l(ffp, 0);    is->step = 1;}static double compute_target_delay(FFPlayer *ffp, double delay, VideoState *is){    double sync_threshold, diff = 0;    /* update delay to follow master synchronisation source */    if (get_master_sync_type(is) != AV_SYNC_VIDEO_MASTER) {        /* if video is slave, we try to correct big delays by           duplicating or deleting a frame */        diff = get_clock(&is->vidclk) - get_master_clock(is);        /* skip or repeat frame. We take into account the           delay to compute the threshold. I still don't know           if it is the best guess */        sync_threshold = FFMAX(AV_SYNC_THRESHOLD_MIN, FFMIN(AV_SYNC_THRESHOLD_MAX, delay));        /* -- by bbcallen: replace is->max_frame_duration with AV_NOSYNC_THRESHOLD */        if (!isnan(diff) && fabs(diff) < AV_NOSYNC_THRESHOLD) {            if (diff <= -sync_threshold)                delay = FFMAX(0, delay + diff);            else if (diff >= sync_threshold && delay > AV_SYNC_FRAMEDUP_THRESHOLD)                delay = delay + diff;            else if (diff >= sync_threshold)                delay = 2 * delay;        }    }    if (ffp) {        ffp->stat.avdelay = delay;        ffp->stat.avdiff  = diff;    }#ifdef FFP_SHOW_AUDIO_DELAY    av_log(NULL, AV_LOG_TRACE, "video: delay=%0.3f A-V=%f\n",            delay, -diff);#endif    return delay;}static double vp_duration(VideoState *is, Frame *vp, Frame *nextvp) {    if (vp->serial == nextvp->serial) {        double duration = nextvp->pts - vp->pts;        if (isnan(duration) || duration <= 0 || duration > is->max_frame_duration)            return vp->duration;        else            return duration;    } else {        return 0.0;    }}static void update_video_pts(VideoState *is, double pts, int64_t pos, int serial) {    /* update current video pts */    set_clock(&is->vidclk, pts, serial);    sync_clock_to_slave(&is->extclk, &is->vidclk);}/* called to display each frame */static void video_refresh(FFPlayer *opaque, double *remaining_time){    FFPlayer *ffp = opaque;    VideoState *is = ffp->is;    double time;    Frame *sp, *sp2;    if (!is->paused && get_master_sync_type(is) == AV_SYNC_EXTERNAL_CLOCK && is->realtime)        check_external_clock_speed(is);    if (!ffp->display_disable && is->show_mode != SHOW_MODE_VIDEO && is->audio_st) {        time = av_gettime_relative() / 1000000.0;        if (is->force_refresh || is->last_vis_time + ffp->rdftspeed < time) {            video_display2(ffp);            is->last_vis_time = time;        }        *remaining_time = FFMIN(*remaining_time, is->last_vis_time + ffp->rdftspeed - time);    }    if (is->video_st) {retry:        if (frame_queue_nb_remaining(&is->pictq) == 0) {            // nothing to do, no picture to display in the queue        } else {            double last_duration, duration, delay;            Frame *vp, *lastvp;            /* dequeue the picture */            lastvp = frame_queue_peek_last(&is->pictq);            vp = frame_queue_peek(&is->pictq);            if (vp->serial != is->videoq.serial) {                frame_queue_next(&is->pictq);                goto retry;            }            if (lastvp->serial != vp->serial)                is->frame_timer = av_gettime_relative() / 1000000.0;            if (is->paused)                goto display;            /* compute nominal last_duration */            last_duration = vp_duration(is, lastvp, vp);            delay = compute_target_delay(ffp, last_duration, is);            time= av_gettime_relative()/1000000.0;            if (isnan(is->frame_timer) || time < is->frame_timer)                is->frame_timer = time;            if (time < is->frame_timer + delay) {                *remaining_time = FFMIN(is->frame_timer + delay - time, *remaining_time);                goto display;            }            is->frame_timer += delay;            if (delay > 0 && time - is->frame_timer > AV_SYNC_THRESHOLD_MAX)                is->frame_timer = time;            SDL_LockMutex(is->pictq.mutex);            if (!isnan(vp->pts))                update_video_pts(is, vp->pts, vp->pos, vp->serial);            SDL_UnlockMutex(is->pictq.mutex);            if (frame_queue_nb_remaining(&is->pictq) > 1) {                Frame *nextvp = frame_queue_peek_next(&is->pictq);                duration = vp_duration(is, vp, nextvp);                if(!is->step && (ffp->framedrop > 0 || (ffp->framedrop && get_master_sync_type(is) != AV_SYNC_VIDEO_MASTER)) && time > is->frame_timer + duration) {                    frame_queue_next(&is->pictq);                    goto retry;                }            }            if (is->subtitle_st) {                while (frame_queue_nb_remaining(&is->subpq) > 0) {                    sp = frame_queue_peek(&is->subpq);                    if (frame_queue_nb_remaining(&is->subpq) > 1)                        sp2 = frame_queue_peek_next(&is->subpq);                    else                        sp2 = NULL;                    if (sp->serial != is->subtitleq.serial                            || (is->vidclk.pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))                            || (sp2 && is->vidclk.pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))                    {                        if (sp->uploaded) {                            ffp_notify_msg4(ffp, FFP_MSG_TIMED_TEXT, 0, 0, "", 1);                        }                        frame_queue_next(&is->subpq);                    } else {                        break;                    }                }            }            frame_queue_next(&is->pictq);            is->force_refresh = 1;            SDL_LockMutex(ffp->is->play_mutex);            if (is->step) {                is->step = 0;                if (!is->paused)                    stream_update_pause_l(ffp);            }            SDL_UnlockMutex(ffp->is->play_mutex);        }display:        /* display picture */        if (!ffp->display_disable && is->force_refresh && is->show_mode == SHOW_MODE_VIDEO && is->pictq.rindex_shown)            video_display2(ffp);    }    is->force_refresh = 0;    if (ffp->show_status) {        static int64_t last_time;        int64_t cur_time;        int aqsize, vqsize, sqsize __unused;        double av_diff;        cur_time = av_gettime_relative();        if (!last_time || (cur_time - last_time) >= 30000) {            aqsize = 0;            vqsize = 0;            sqsize = 0;            if (is->audio_st)                aqsize = is->audioq.size;            if (is->video_st)                vqsize = is->videoq.size;#ifdef FFP_MERGE            if (is->subtitle_st)                sqsize = is->subtitleq.size;#else            sqsize = 0;#endif            av_diff = 0;            if (is->audio_st && is->video_st)                av_diff = get_clock(&is->audclk) - get_clock(&is->vidclk);            else if (is->video_st)                av_diff = get_master_clock(is) - get_clock(&is->vidclk);            else if (is->audio_st)                av_diff = get_master_clock(is) - get_clock(&is->audclk);            av_log(NULL, AV_LOG_INFO,                   "%7.2f %s:%7.3f fd=%4d aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64"   \r",                   get_master_clock(is),                   (is->audio_st && is->video_st) ? "A-V" : (is->video_st ? "M-V" : (is->audio_st ? "M-A" : "   ")),                   av_diff,                   is->frame_drops_early + is->frame_drops_late,                   aqsize / 1024,                   vqsize / 1024,                   sqsize,                   is->video_st ? is->viddec.avctx->pts_correction_num_faulty_dts : 0,                   is->video_st ? is->viddec.avctx->pts_correction_num_faulty_pts : 0);            fflush(stdout);            last_time = cur_time;        }    }}/* allocate a picture (needs to do that in main thread to avoid   potential locking problems */static void alloc_picture(FFPlayer *ffp, int frame_format){    VideoState *is = ffp->is;    Frame *vp;#ifdef FFP_MERGE    int sdl_format;#endif    vp = &is->pictq.queue[is->pictq.windex];    free_picture(vp);#ifdef FFP_MERGE    video_open(is, vp);#endif    SDL_VoutSetOverlayFormat(ffp->vout, ffp->overlay_format);    vp->bmp = SDL_Vout_CreateOverlay(vp->width, vp->height,                                   frame_format,                                   ffp->vout);#ifdef FFP_MERGE    if (vp->format == AV_PIX_FMT_YUV420P)        sdl_format = SDL_PIXELFORMAT_YV12;    else        sdl_format = SDL_PIXELFORMAT_ARGB8888;    if (realloc_texture(&vp->bmp, sdl_format, vp->width, vp->height, SDL_BLENDMODE_NONE, 0) < 0) {#else    /* RV16, RV32 contains only one plane */    if (!vp->bmp || (!vp->bmp->is_private && vp->bmp->pitches[0] < vp->width)) {#endif        /* SDL allocates a buffer smaller than requested if the video         * overlay hardware is unable to support the requested size. */        av_log(NULL, AV_LOG_FATAL,               "Error: the video system does not support an image\n"                        "size of %dx%d pixels. Try using -lowres or -vf \"scale=w:h\"\n"                        "to reduce the image size.\n", vp->width, vp->height );        free_picture(vp);    }    SDL_LockMutex(is->pictq.mutex);    vp->allocated = 1;    SDL_CondSignal(is->pictq.cond);    SDL_UnlockMutex(is->pictq.mutex);}static int queue_picture(FFPlayer *ffp, AVFrame *src_frame, double pts, double duration, int64_t pos, int serial){    VideoState *is = ffp->is;    Frame *vp;    int video_accurate_seek_fail = 0;    int64_t video_seek_pos = 0;    if (ffp->enable_accurate_seek && is->video_accurate_seek_req && !is->seek_req) {        if (!isnan(pts)) {            video_seek_pos = is->seek_pos;            if (pts * 1000 * 1000 < is->seek_pos) {                if (is->drop_vframe_count == 0) {                    av_log(NULL, AV_LOG_INFO, "video accurate_seek start, is->seek_pos=%lld, pts=%lf\n", is->seek_pos, pts);                }                is->drop_vframe_count++;                if (is->drop_vframe_count < MAX_KEY_FRAME_INTERVAL) {                    return 1;  // drop some old frame when do accurate seek                } else {                    av_log(NULL, AV_LOG_WARNING, "video accurate_seek is error, is->drop_vframe_count=%d\n", is->drop_vframe_count);                    video_accurate_seek_fail = 1;  // if KEY_FRAME interval too big, disable accurate seek                }            } else {                av_log(NULL, AV_LOG_INFO, "video accurate_seek is ok, is->drop_vframe_count =%d, is->seek_pos=%lld, pts=%lf\n", is->drop_vframe_count, is->seek_pos, pts);                if (video_seek_pos == is->seek_pos) {                    is->drop_vframe_count       = 0;                    SDL_LockMutex(is->accurate_seek_mutex);                    is->video_accurate_seek_req = 0;                    SDL_CondSignal(is->audio_accurate_seek_cond);                    if (video_seek_pos == is->seek_pos && is->audio_accurate_seek_req && !is->abort_request)                        SDL_CondWait(is->video_accurate_seek_cond, is->accurate_seek_mutex);                    ffp_notify_msg2(ffp, FFP_MSG_ACCURATE_SEEK_COMPLETE, (int)(pts * 1000));                    if (video_seek_pos != is->seek_pos && !is->abort_request) {                        is->video_accurate_seek_req = 1;                        SDL_UnlockMutex(is->accurate_seek_mutex);                        return 1;                    }                    SDL_UnlockMutex(is->accurate_seek_mutex);                }            }        } else {            video_accurate_seek_fail = 1;        }        if (video_accurate_seek_fail) {            if (!isnan(pts)) {                ffp_notify_msg2(ffp, FFP_MSG_ACCURATE_SEEK_COMPLETE, (int)(pts * 1000));            }            ffp->enable_accurate_seek   = 0;            is->drop_vframe_count       = 0;            SDL_LockMutex(is->accurate_seek_mutex);            is->video_accurate_seek_req = 0;            SDL_CondSignal(is->audio_accurate_seek_cond);            SDL_UnlockMutex(is->accurate_seek_mutex);        }    }#if defined(DEBUG_SYNC)    printf("frame_type=%c pts=%0.3f\n",           av_get_picture_type_char(src_frame->pict_type), pts);#endif    if (!(vp = frame_queue_peek_writable(&is->pictq)))        return -1;    vp->sar = src_frame->sample_aspect_ratio;#ifdef FFP_MERGE    vp->uploaded = 0;#endif    /* alloc or resize hardware picture buffer */    if (!vp->bmp || !vp->allocated ||        vp->width  != src_frame->width ||        vp->height != src_frame->height ||        vp->format != src_frame->format) {        if (vp->width != src_frame->width || vp->height != src_frame->height)            ffp_notify_msg3(ffp, FFP_MSG_VIDEO_SIZE_CHANGED, src_frame->width, src_frame->height);        vp->allocated = 0;        vp->width = src_frame->width;        vp->height = src_frame->height;        vp->format = src_frame->format;        /* the allocation must be done in the main thread to avoid           locking problems. */        alloc_picture(ffp, src_frame->format);        if (is->videoq.abort_request)            return -1;    }    /* if the frame is not skipped, then display it */    if (vp->bmp) {        /* get a pointer on the bitmap */        SDL_VoutLockYUVOverlay(vp->bmp);#ifdef FFP_MERGE#if CONFIG_AVFILTER        // FIXME use direct rendering        av_image_copy(data, linesize, (const uint8_t **)src_frame->data, src_frame->linesize,                        src_frame->format, vp->width, vp->height);#else        // sws_getCachedContext(...);#endif#endif        // FIXME: set swscale options        if (SDL_VoutFillFrameYUVOverlay(vp->bmp, src_frame) < 0) {            av_log(NULL, AV_LOG_FATAL, "Cannot initialize the conversion context\n");            exit(1);        }        /* update the bitmap content */        SDL_VoutUnlockYUVOverlay(vp->bmp);        vp->pts = pts;        vp->duration = duration;        vp->pos = pos;        vp->serial = serial;        vp->sar = src_frame->sample_aspect_ratio;        vp->bmp->sar_num = vp->sar.num;        vp->bmp->sar_den = vp->sar.den;#ifdef FFP_MERGE        av_frame_move_ref(vp->frame, src_frame);#endif        frame_queue_push(&is->pictq);        if (!is->viddec.first_frame_decoded) {            ALOGD("Video: first frame decoded\n");            is->viddec.first_frame_decoded_time = SDL_GetTickHR();            is->viddec.first_frame_decoded = 1;        }    }    return 0;}static int get_video_frame(FFPlayer *ffp, AVFrame *frame){    VideoState *is = ffp->is;    int got_picture;    ffp_video_statistic_l(ffp);    if ((got_picture = decoder_decode_frame(ffp, &is->viddec, frame, NULL)) < 0)        return -1;    if (got_picture) {        double dpts = NAN;        if (frame->pts != AV_NOPTS_VALUE)            dpts = av_q2d(is->video_st->time_base) * frame->pts;        frame->sample_aspect_ratio = av_guess_sample_aspect_ratio(is->ic, is->video_st, frame);        if (ffp->framedrop>0 || (ffp->framedrop && get_master_sync_type(is) != AV_SYNC_VIDEO_MASTER)) {            if (frame->pts != AV_NOPTS_VALUE) {                double diff = dpts - get_master_clock(is);                if (!isnan(diff) && fabs(diff) < AV_NOSYNC_THRESHOLD &&                    diff - is->frame_last_filter_delay < 0 &&                    is->viddec.pkt_serial == is->vidclk.serial &&                    is->videoq.nb_packets) {                    is->frame_drops_early++;                    is->continuous_frame_drops_early++;                    if (is->continuous_frame_drops_early > ffp->framedrop) {                        is->continuous_frame_drops_early = 0;                    } else {                        av_frame_unref(frame);                        got_picture = 0;                    }                }            }        }    }    return got_picture;}#if CONFIG_AVFILTERstatic int configure_filtergraph(AVFilterGraph *graph, const char *filtergraph,                                 AVFilterContext *source_ctx, AVFilterContext *sink_ctx){    int ret, i;    int nb_filters = graph->nb_filters;    AVFilterInOut *outputs = NULL, *inputs = NULL;    if (filtergraph) {        outputs = avfilter_inout_alloc();        inputs  = avfilter_inout_alloc();        if (!outputs || !inputs) {            ret = AVERROR(ENOMEM);            goto fail;        }        outputs->name       = av_strdup("in");        outputs->filter_ctx = source_ctx;        outputs->pad_idx    = 0;        outputs->next       = NULL;        inputs->name        = av_strdup("out");        inputs->filter_ctx  = sink_ctx;        inputs->pad_idx     = 0;        inputs->next        = NULL;        if ((ret = avfilter_graph_parse_ptr(graph, filtergraph, &inputs, &outputs, NULL)) < 0)            goto fail;    } else {        if ((ret = avfilter_link(source_ctx, 0, sink_ctx, 0)) < 0)            goto fail;    }    /* Reorder the filters to ensure that inputs of the custom filters are merged first */    for (i = 0; i < graph->nb_filters - nb_filters; i++)        FFSWAP(AVFilterContext*, graph->filters[i], graph->filters[i + nb_filters]);    ret = avfilter_graph_config(graph, NULL);fail:    avfilter_inout_free(&outputs);    avfilter_inout_free(&inputs);    return ret;}static int configure_video_filters(FFPlayer *ffp, AVFilterGraph *graph, VideoState *is, const char *vfilters, AVFrame *frame){    static const enum AVPixelFormat pix_fmts[] = { AV_PIX_FMT_YUV420P, AV_PIX_FMT_BGRA, AV_PIX_FMT_NONE };    char sws_flags_str[512] = "";    char buffersrc_args[256];    int ret;    AVFilterContext *filt_src = NULL, *filt_out = NULL, *last_filter = NULL;    AVCodecParameters *codecpar = is->video_st->codecpar;    AVRational fr = av_guess_frame_rate(is->ic, is->video_st, NULL);    AVDictionaryEntry *e = NULL;    while ((e = av_dict_get(ffp->sws_dict, "", e, AV_DICT_IGNORE_SUFFIX))) {        if (!strcmp(e->key, "sws_flags")) {            av_strlcatf(sws_flags_str, sizeof(sws_flags_str), "%s=%s:", "flags", e->value);        } else            av_strlcatf(sws_flags_str, sizeof(sws_flags_str), "%s=%s:", e->key, e->value);    }    if (strlen(sws_flags_str))        sws_flags_str[strlen(sws_flags_str)-1] = '\0';    graph->scale_sws_opts = av_strdup(sws_flags_str);    snprintf(buffersrc_args, sizeof(buffersrc_args),             "video_size=%dx%d:pix_fmt=%d:time_base=%d/%d:pixel_aspect=%d/%d",             frame->width, frame->height, frame->format,             is->video_st->time_base.num, is->video_st->time_base.den,             codecpar->sample_aspect_ratio.num, FFMAX(codecpar->sample_aspect_ratio.den, 1));    if (fr.num && fr.den)        av_strlcatf(buffersrc_args, sizeof(buffersrc_args), ":frame_rate=%d/%d", fr.num, fr.den);    if ((ret = avfilter_graph_create_filter(&filt_src,                                            avfilter_get_by_name("buffer"),                                            "ffplay_buffer", buffersrc_args, NULL,                                            graph)) < 0)        goto fail;    ret = avfilter_graph_create_filter(&filt_out,                                       avfilter_get_by_name("buffersink"),                                       "ffplay_buffersink", NULL, NULL, graph);    if (ret < 0)        goto fail;    if ((ret = av_opt_set_int_list(filt_out, "pix_fmts", pix_fmts,  AV_PIX_FMT_NONE, AV_OPT_SEARCH_CHILDREN)) < 0)        goto fail;    last_filter = filt_out;/* Note: this macro adds a filter before the lastly added filter, so the * processing order of the filters is in reverse */#define INSERT_FILT(name, arg) do {                                          \    AVFilterContext *filt_ctx;                                               \                                                                             \    ret = avfilter_graph_create_filter(&filt_ctx,                            \                                       avfilter_get_by_name(name),           \                                       "ffplay_" name, arg, NULL, graph);    \    if (ret < 0)                                                             \        goto fail;                                                           \                                                                             \    ret = avfilter_link(filt_ctx, 0, last_filter, 0);                        \    if (ret < 0)                                                             \        goto fail;                                                           \                                                                             \    last_filter = filt_ctx;                                                  \} while (0)    if (ffp->autorotate) {        double theta  = get_rotation(is->video_st);        if (fabs(theta - 90) < 1.0) {            INSERT_FILT("transpose", "clock");        } else if (fabs(theta - 180) < 1.0) {            INSERT_FILT("hflip", NULL);            INSERT_FILT("vflip", NULL);        } else if (fabs(theta - 270) < 1.0) {            INSERT_FILT("transpose", "cclock");        } else if (fabs(theta) > 1.0) {            char rotate_buf[64];            snprintf(rotate_buf, sizeof(rotate_buf), "%f*PI/180", theta);            INSERT_FILT("rotate", rotate_buf);        }    }#ifdef FFP_AVFILTER_PLAYBACK_RATE    if (fabsf(ffp->pf_playback_rate) > 0.00001 &&        fabsf(ffp->pf_playback_rate - 1.0f) > 0.00001) {        char setpts_buf[256];        float rate = 1.0f / ffp->pf_playback_rate;        rate = av_clipf_c(rate, 0.5f, 2.0f);        av_log(ffp, AV_LOG_INFO, "vf_rate=%f(1/%f)\n", ffp->pf_playback_rate, rate);        snprintf(setpts_buf, sizeof(setpts_buf), "%f*PTS", rate);        INSERT_FILT("setpts", setpts_buf);    }#endif    if ((ret = configure_filtergraph(graph, vfilters, filt_src, last_filter)) < 0)        goto fail;    is->in_video_filter  = filt_src;    is->out_video_filter = filt_out;fail:    return ret;}static int configure_audio_filters(FFPlayer *ffp, const char *afilters, int force_output_format){    VideoState *is = ffp->is;    static const enum AVSampleFormat sample_fmts[] = { AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_NONE };    int sample_rates[2] = { 0, -1 };    int64_t channel_layouts[2] = { 0, -1 };    int channels[2] = { 0, -1 };    AVFilterContext *filt_asrc = NULL, *filt_asink = NULL;    char aresample_swr_opts[512] = "";    AVDictionaryEntry *e = NULL;    char asrc_args[256];    int ret;    char afilters_args[4096];    avfilter_graph_free(&is->agraph);    if (!(is->agraph = avfilter_graph_alloc()))        return AVERROR(ENOMEM);    while ((e = av_dict_get(ffp->swr_opts, "", e, AV_DICT_IGNORE_SUFFIX)))        av_strlcatf(aresample_swr_opts, sizeof(aresample_swr_opts), "%s=%s:", e->key, e->value);    if (strlen(aresample_swr_opts))        aresample_swr_opts[strlen(aresample_swr_opts)-1] = '\0';    av_opt_set(is->agraph, "aresample_swr_opts", aresample_swr_opts, 0);    ret = snprintf(asrc_args, sizeof(asrc_args),                   "sample_rate=%d:sample_fmt=%s:channels=%d:time_base=%d/%d",                   is->audio_filter_src.freq, av_get_sample_fmt_name(is->audio_filter_src.fmt),                   is->audio_filter_src.channels,                   1, is->audio_filter_src.freq);    if (is->audio_filter_src.channel_layout)        snprintf(asrc_args + ret, sizeof(asrc_args) - ret,                 ":channel_layout=0x%"PRIx64,  is->audio_filter_src.channel_layout);    ret = avfilter_graph_create_filter(&filt_asrc,                                       avfilter_get_by_name("abuffer"), "ffplay_abuffer",                                       asrc_args, NULL, is->agraph);    if (ret < 0)        goto end;    ret = avfilter_graph_create_filter(&filt_asink,                                       avfilter_get_by_name("abuffersink"), "ffplay_abuffersink",                                       NULL, NULL, is->agraph);    if (ret < 0)        goto end;    if ((ret = av_opt_set_int_list(filt_asink, "sample_fmts", sample_fmts,  AV_SAMPLE_FMT_NONE, AV_OPT_SEARCH_CHILDREN)) < 0)        goto end;    if ((ret = av_opt_set_int(filt_asink, "all_channel_counts", 1, AV_OPT_SEARCH_CHILDREN)) < 0)        goto end;    if (force_output_format) {        channel_layouts[0] = is->audio_tgt.channel_layout;        channels       [0] = is->audio_tgt.channels;        sample_rates   [0] = is->audio_tgt.freq;        if ((ret = av_opt_set_int(filt_asink, "all_channel_counts", 0, AV_OPT_SEARCH_CHILDREN)) < 0)            goto end;        if ((ret = av_opt_set_int_list(filt_asink, "channel_layouts", channel_layouts,  -1, AV_OPT_SEARCH_CHILDREN)) < 0)            goto end;        if ((ret = av_opt_set_int_list(filt_asink, "channel_counts" , channels       ,  -1, AV_OPT_SEARCH_CHILDREN)) < 0)            goto end;        if ((ret = av_opt_set_int_list(filt_asink, "sample_rates"   , sample_rates   ,  -1, AV_OPT_SEARCH_CHILDREN)) < 0)            goto end;    }    afilters_args[0] = 0;    if (afilters)        snprintf(afilters_args, sizeof(afilters_args), "%s", afilters);#ifdef FFP_AVFILTER_PLAYBACK_RATE    if (fabsf(ffp->pf_playback_rate) > 0.00001 &&        fabsf(ffp->pf_playback_rate - 1.0f) > 0.00001) {        if (afilters_args[0])            av_strlcatf(afilters_args, sizeof(afilters_args), ",");        av_log(ffp, AV_LOG_INFO, "af_rate=%f\n", ffp->pf_playback_rate);        av_strlcatf(afilters_args, sizeof(afilters_args), "atempo=%f", ffp->pf_playback_rate);    }#endif    if ((ret = configure_filtergraph(is->agraph, afilters_args[0] ? afilters_args : NULL, filt_asrc, filt_asink)) < 0)        goto end;    is->in_audio_filter  = filt_asrc;    is->out_audio_filter = filt_asink;end:    if (ret < 0)        avfilter_graph_free(&is->agraph);    return ret;}#endif  /* CONFIG_AVFILTER */static int audio_thread(void *arg){    FFPlayer *ffp = arg;    VideoState *is = ffp->is;    AVFrame *frame = av_frame_alloc();    Frame *af;#if CONFIG_AVFILTER    int last_serial = -1;    int64_t dec_channel_layout;    int reconfigure;#endif    int got_frame = 0;    AVRational tb;    int ret = 0;    int audio_accurate_seek_fail = 0;    int64_t audio_seek_pos = 0;    if (!frame)        return AVERROR(ENOMEM);    do {        ffp_audio_statistic_l(ffp);        if ((got_frame = decoder_decode_frame(ffp, &is->auddec, frame, NULL)) < 0)            goto the_end;        if (got_frame) {                tb = (AVRational){1, frame->sample_rate};                if (ffp->enable_accurate_seek && is->audio_accurate_seek_req && !is->seek_req) {                    double frame_pts = (frame->pts == AV_NOPTS_VALUE) ? NAN : frame->pts * av_q2d(tb);                    double audio_clock = 0;                    if (!isnan(frame_pts)) {                        double samples_duration = (double) frame->nb_samples / frame->sample_rate;                        audio_clock = frame_pts + samples_duration;                        audio_seek_pos = is->seek_pos;                        if (audio_clock * 1000 * 1000 < is->seek_pos) {                            if (is->drop_aframe_count == 0) {                                av_log(NULL, AV_LOG_INFO, "audio accurate_seek start, is->seek_pos=%lld, audio_clock=%lf\n", is->seek_pos, audio_clock);                            }                            is->drop_aframe_count++;                            if (is->drop_aframe_count < MAX_KEY_FRAME_INTERVAL) {                                continue;  // drop some old frame when do accurate seek                            } else {                                av_log(NULL, AV_LOG_INFO, "audio accurate_seek is error, is->drop_aframe_count=%d\n", is->drop_aframe_count);                                audio_accurate_seek_fail = 1;                            }                        } else {                            if (audio_seek_pos == is->seek_pos) {                                av_log(NULL, AV_LOG_INFO, "audio accurate_seek is ok, is->drop_aframe_count=%d\n", is->drop_aframe_count);                                is->drop_aframe_count       = 0;                                SDL_LockMutex(is->accurate_seek_mutex);                                is->audio_accurate_seek_req = 0;                                SDL_CondSignal(is->video_accurate_seek_cond);                                if (audio_seek_pos == is->seek_pos && is->video_accurate_seek_req && !is->abort_request)                                    SDL_CondWait(is->audio_accurate_seek_cond, is->accurate_seek_mutex);                                if (audio_seek_pos != is->seek_pos && !is->abort_request) {                                    is->audio_accurate_seek_req = 1;                                    SDL_UnlockMutex(is->accurate_seek_mutex);                                    continue;                                }                                SDL_UnlockMutex(is->accurate_seek_mutex);                            }                        }                    } else {                        audio_accurate_seek_fail = 1;                    }                    if (audio_accurate_seek_fail) {                        if (!isnan(frame_pts)) {                            ffp_notify_msg2(ffp, FFP_MSG_ACCURATE_SEEK_COMPLETE, (int)(audio_clock * 1000));                        }                        ffp->enable_accurate_seek   = 0;                        is->drop_aframe_count       = 0;                        SDL_LockMutex(is->accurate_seek_mutex);                        is->audio_accurate_seek_req = 0;                        SDL_CondSignal(is->video_accurate_seek_cond);                        SDL_UnlockMutex(is->accurate_seek_mutex);                    }                }#if CONFIG_AVFILTER                dec_channel_layout = get_valid_channel_layout(frame->channel_layout, av_frame_get_channels(frame));                reconfigure =                    cmp_audio_fmts(is->audio_filter_src.fmt, is->audio_filter_src.channels,                                   frame->format, av_frame_get_channels(frame))    ||                    is->audio_filter_src.channel_layout != dec_channel_layout ||                    is->audio_filter_src.freq           != frame->sample_rate ||                    is->auddec.pkt_serial               != last_serial        ||                    ffp->af_changed;                if (reconfigure) {                    SDL_LockMutex(ffp->af_mutex);                    ffp->af_changed = 0;                    char buf1[1024], buf2[1024];                    av_get_channel_layout_string(buf1, sizeof(buf1), -1, is->audio_filter_src.channel_layout);                    av_get_channel_layout_string(buf2, sizeof(buf2), -1, dec_channel_layout);                    av_log(NULL, AV_LOG_DEBUG,                           "Audio frame changed from rate:%d ch:%d fmt:%s layout:%s serial:%d to rate:%d ch:%d fmt:%s layout:%s serial:%d\n",                           is->audio_filter_src.freq, is->audio_filter_src.channels, av_get_sample_fmt_name(is->audio_filter_src.fmt), buf1, last_serial,                           frame->sample_rate, av_frame_get_channels(frame), av_get_sample_fmt_name(frame->format), buf2, is->auddec.pkt_serial);                    is->audio_filter_src.fmt            = frame->format;                    is->audio_filter_src.channels       = av_frame_get_channels(frame);                    is->audio_filter_src.channel_layout = dec_channel_layout;                    is->audio_filter_src.freq           = frame->sample_rate;                    last_serial                         = is->auddec.pkt_serial;                    if ((ret = configure_audio_filters(ffp, ffp->afilters, 1)) < 0) {                        SDL_UnlockMutex(ffp->af_mutex);                        goto the_end;                    }                    SDL_UnlockMutex(ffp->af_mutex);                }            if ((ret = av_buffersrc_add_frame(is->in_audio_filter, frame)) < 0)                goto the_end;            while ((ret = av_buffersink_get_frame_flags(is->out_audio_filter, frame, 0)) >= 0) {                tb = is->out_audio_filter->inputs[0]->time_base;#endif                if (!(af = frame_queue_peek_writable(&is->sampq)))                    goto the_end;                af->pts = (frame->pts == AV_NOPTS_VALUE) ? NAN : frame->pts * av_q2d(tb);                af->pos = av_frame_get_pkt_pos(frame);                af->serial = is->auddec.pkt_serial;                af->duration = av_q2d((AVRational){frame->nb_samples, frame->sample_rate});                av_frame_move_ref(af->frame, frame);                frame_queue_push(&is->sampq);#if CONFIG_AVFILTER                if (is->audioq.serial != is->auddec.pkt_serial)                    break;            }            if (ret == AVERROR_EOF)                is->auddec.finished = is->auddec.pkt_serial;#endif        }    } while (ret >= 0 || ret == AVERROR(EAGAIN) || ret == AVERROR_EOF); the_end:#if CONFIG_AVFILTER    avfilter_graph_free(&is->agraph);#endif    av_frame_free(&frame);    return ret;}static int decoder_start(Decoder *d, int (*fn)(void *), void *arg, const char *name){    packet_queue_start(d->queue);    d->decoder_tid = SDL_CreateThreadEx(&d->_decoder_tid, fn, arg, name);    if (!d->decoder_tid) {        av_log(NULL, AV_LOG_ERROR, "SDL_CreateThread(): %s\n", SDL_GetError());        return AVERROR(ENOMEM);    }    return 0;}static int ffplay_video_thread(void *arg){    FFPlayer *ffp = arg;    VideoState *is = ffp->is;    AVFrame *frame = av_frame_alloc();    double pts;    double duration;    int ret;    AVRational tb = is->video_st->time_base;    AVRational frame_rate = av_guess_frame_rate(is->ic, is->video_st, NULL);#if CONFIG_AVFILTER    AVFilterGraph *graph = avfilter_graph_alloc();    AVFilterContext *filt_out = NULL, *filt_in = NULL;    int last_w = 0;    int last_h = 0;    enum AVPixelFormat last_format = -2;    int last_serial = -1;    int last_vfilter_idx = 0;    if (!graph) {        av_frame_free(&frame);        return AVERROR(ENOMEM);    }#else    ffp_notify_msg2(ffp, FFP_MSG_VIDEO_ROTATION_CHANGED, ffp_get_video_rotate_degrees(ffp));#endif    if (!frame) {#if CONFIG_AVFILTER        avfilter_graph_free(&graph);#endif        return AVERROR(ENOMEM);    }    for (;;) {        ret = get_video_frame(ffp, frame);        if (ret < 0)            goto the_end;        if (!ret)            continue;#if CONFIG_AVFILTER        if (   last_w != frame->width            || last_h != frame->height            || last_format != frame->format            || last_serial != is->viddec.pkt_serial            || ffp->vf_changed            || last_vfilter_idx != is->vfilter_idx) {            SDL_LockMutex(ffp->vf_mutex);            ffp->vf_changed = 0;            av_log(NULL, AV_LOG_DEBUG,                   "Video frame changed from size:%dx%d format:%s serial:%d to size:%dx%d format:%s serial:%d\n",                   last_w, last_h,                   (const char *)av_x_if_null(av_get_pix_fmt_name(last_format), "none"), last_serial,                   frame->width, frame->height,                   (const char *)av_x_if_null(av_get_pix_fmt_name(frame->format), "none"), is->viddec.pkt_serial);            avfilter_graph_free(&graph);            graph = avfilter_graph_alloc();            if ((ret = configure_video_filters(ffp, graph, is, ffp->vfilters_list ? ffp->vfilters_list[is->vfilter_idx] : NULL, frame)) < 0) {                // FIXME: post error                SDL_UnlockMutex(ffp->vf_mutex);                goto the_end;            }            filt_in  = is->in_video_filter;            filt_out = is->out_video_filter;            last_w = frame->width;            last_h = frame->height;            last_format = frame->format;            last_serial = is->viddec.pkt_serial;            last_vfilter_idx = is->vfilter_idx;            frame_rate = filt_out->inputs[0]->frame_rate;            SDL_UnlockMutex(ffp->vf_mutex);        }        ret = av_buffersrc_add_frame(filt_in, frame);        if (ret < 0)            goto the_end;        while (ret >= 0) {            is->frame_last_returned_time = av_gettime_relative() / 1000000.0;            ret = av_buffersink_get_frame_flags(filt_out, frame, 0);            if (ret < 0) {                if (ret == AVERROR_EOF)                    is->viddec.finished = is->viddec.pkt_serial;                ret = 0;                break;            }            is->frame_last_filter_delay = av_gettime_relative() / 1000000.0 - is->frame_last_returned_time;            if (fabs(is->frame_last_filter_delay) > AV_NOSYNC_THRESHOLD / 10.0)                is->frame_last_filter_delay = 0;            tb = filt_out->inputs[0]->time_base;#endif            duration = (frame_rate.num && frame_rate.den ? av_q2d((AVRational){frame_rate.den, frame_rate.num}) : 0);            pts = (frame->pts == AV_NOPTS_VALUE) ? NAN : frame->pts * av_q2d(tb);            ret = queue_picture(ffp, frame, pts, duration, av_frame_get_pkt_pos(frame), is->viddec.pkt_serial);            av_frame_unref(frame);#if CONFIG_AVFILTER        }#endif        if (ret < 0)            goto the_end;    } the_end:#if CONFIG_AVFILTER    avfilter_graph_free(&graph);#endif    av_frame_free(&frame);    return 0;}static int video_thread(void *arg){    FFPlayer *ffp = (FFPlayer *)arg;    int       ret = 0;    if (ffp->node_vdec) {        ret = ffpipenode_run_sync(ffp->node_vdec);    }    return ret;}static int subtitle_thread(void *arg){    FFPlayer *ffp = arg;    VideoState *is = ffp->is;    Frame *sp;    int got_subtitle;    double pts;    for (;;) {        if (!(sp = frame_queue_peek_writable(&is->subpq)))            return 0;        if ((got_subtitle = decoder_decode_frame(ffp, &is->subdec, NULL, &sp->sub)) < 0)            break;        pts = 0;#ifdef FFP_MERGE        if (got_subtitle && sp->sub.format == 0) {#else        if (got_subtitle) {#endif            if (sp->sub.pts != AV_NOPTS_VALUE)                pts = sp->sub.pts / (double)AV_TIME_BASE;            sp->pts = pts;            sp->serial = is->subdec.pkt_serial;            sp->width = is->subdec.avctx->width;            sp->height = is->subdec.avctx->height;            sp->uploaded = 0;            /* now we can update the picture count */            frame_queue_push(&is->subpq);#ifdef FFP_MERGE        } else if (got_subtitle) {            avsubtitle_free(&sp->sub);#endif        }    }    return 0;}/* copy samples for viewing in editor window */static void update_sample_display(VideoState *is, short *samples, int samples_size){    int size, len;    size = samples_size / sizeof(short);    while (size > 0) {        len = SAMPLE_ARRAY_SIZE - is->sample_array_index;        if (len > size)            len = size;        memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));        samples += len;        is->sample_array_index += len;        if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)            is->sample_array_index = 0;        size -= len;    }}/* return the wanted number of samples to get better sync if sync_type is video * or external master clock */static int synchronize_audio(VideoState *is, int nb_samples){    int wanted_nb_samples = nb_samples;    /* if not master, then we try to remove or add samples to correct the clock */    if (get_master_sync_type(is) != AV_SYNC_AUDIO_MASTER) {        double diff, avg_diff;        int min_nb_samples, max_nb_samples;        diff = get_clock(&is->audclk) - get_master_clock(is);        if (!isnan(diff) && fabs(diff) < AV_NOSYNC_THRESHOLD) {            is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;            if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {                /* not enough measures to have a correct estimate */                is->audio_diff_avg_count++;            } else {                /* estimate the A-V difference */                avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);                if (fabs(avg_diff) >= is->audio_diff_threshold) {                    wanted_nb_samples = nb_samples + (int)(diff * is->audio_src.freq);                    min_nb_samples = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX) / 100));                    max_nb_samples = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX) / 100));                    wanted_nb_samples = av_clip(wanted_nb_samples, min_nb_samples, max_nb_samples);                }                av_log(NULL, AV_LOG_TRACE, "diff=%f adiff=%f sample_diff=%d apts=%0.3f %f\n",                        diff, avg_diff, wanted_nb_samples - nb_samples,                        is->audio_clock, is->audio_diff_threshold);            }        } else {            /* too big difference : may be initial PTS errors, so               reset A-V filter */            is->audio_diff_avg_count = 0;            is->audio_diff_cum       = 0;        }    }    return wanted_nb_samples;}/** * Decode one audio frame and return its uncompressed size. * * The processed audio frame is decoded, converted if required, and * stored in is->audio_buf, with size in bytes given by the return * value. */static int audio_decode_frame(FFPlayer *ffp){    VideoState *is = ffp->is;    int data_size, resampled_data_size;    int64_t dec_channel_layout;    av_unused double audio_clock0;    int wanted_nb_samples;    Frame *af;    int translate_time = 1;    if (is->paused || is->step)        return -1;    if (ffp->sync_av_start &&                       /* sync enabled */        is->video_st &&                             /* has video stream */        !is->viddec.first_frame_decoded &&          /* not hot */        is->viddec.finished != is->videoq.serial) { /* not finished */        /* waiting for first video frame */        Uint64 now = SDL_GetTickHR();        if (now < is->viddec.first_frame_decoded_time ||            now > is->viddec.first_frame_decoded_time + 2000) {            is->viddec.first_frame_decoded = 1;        } else {            /* video pipeline is not ready yet */            return -1;        }    }reload:    do {#if defined(_WIN32) || defined(__APPLE__)        while (frame_queue_nb_remaining(&is->sampq) == 0) {            if ((av_gettime_relative() - ffp->audio_callback_time) > 1000000LL * is->audio_hw_buf_size / is->audio_tgt.bytes_per_sec / 2)                return -1;            av_usleep (1000);        }#endif        if (!(af = frame_queue_peek_readable(&is->sampq)))            return -1;        frame_queue_next(&is->sampq);    } while (af->serial != is->audioq.serial);    data_size = av_samples_get_buffer_size(NULL, av_frame_get_channels(af->frame),                                           af->frame->nb_samples,                                           af->frame->format, 1);    dec_channel_layout =        (af->frame->channel_layout && av_frame_get_channels(af->frame) == av_get_channel_layout_nb_channels(af->frame->channel_layout)) ?        af->frame->channel_layout : av_get_default_channel_layout(av_frame_get_channels(af->frame));    wanted_nb_samples = synchronize_audio(is, af->frame->nb_samples);    if (af->frame->format        != is->audio_src.fmt            ||        dec_channel_layout       != is->audio_src.channel_layout ||        af->frame->sample_rate   != is->audio_src.freq           ||        (wanted_nb_samples       != af->frame->nb_samples && !is->swr_ctx)) {        AVDictionary *swr_opts = NULL;        swr_free(&is->swr_ctx);        is->swr_ctx = swr_alloc_set_opts(NULL,                                         is->audio_tgt.channel_layout, is->audio_tgt.fmt, is->audio_tgt.freq,                                         dec_channel_layout,           af->frame->format, af->frame->sample_rate,                                         0, NULL);        if (!is->swr_ctx) {            av_log(NULL, AV_LOG_ERROR,                   "Cannot create sample rate converter for conversion of %d Hz %s %d channels to %d Hz %s %d channels!\n",                    af->frame->sample_rate, av_get_sample_fmt_name(af->frame->format), av_frame_get_channels(af->frame),                    is->audio_tgt.freq, av_get_sample_fmt_name(is->audio_tgt.fmt), is->audio_tgt.channels);            return -1;        }        av_dict_copy(&swr_opts, ffp->swr_opts, 0);        if (af->frame->channel_layout == AV_CH_LAYOUT_5POINT1_BACK)            av_opt_set_double(is->swr_ctx, "center_mix_level", ffp->preset_5_1_center_mix_level, 0);        av_opt_set_dict(is->swr_ctx, &swr_opts);        av_dict_free(&swr_opts);        if (swr_init(is->swr_ctx) < 0) {            av_log(NULL, AV_LOG_ERROR,                   "Cannot create sample rate converter for conversion of %d Hz %s %d channels to %d Hz %s %d channels!\n",                    af->frame->sample_rate, av_get_sample_fmt_name(af->frame->format), av_frame_get_channels(af->frame),                    is->audio_tgt.freq, av_get_sample_fmt_name(is->audio_tgt.fmt), is->audio_tgt.channels);            swr_free(&is->swr_ctx);            return -1;        }        is->audio_src.channel_layout = dec_channel_layout;        is->audio_src.channels       = av_frame_get_channels(af->frame);        is->audio_src.freq = af->frame->sample_rate;        is->audio_src.fmt = af->frame->format;    }    if (is->swr_ctx) {        const uint8_t **in = (const uint8_t **)af->frame->extended_data;        uint8_t **out = &is->audio_buf1;        int out_count = (int)((int64_t)wanted_nb_samples * is->audio_tgt.freq / af->frame->sample_rate + 256);        int out_size  = av_samples_get_buffer_size(NULL, is->audio_tgt.channels, out_count, is->audio_tgt.fmt, 0);        int len2;        if (out_size < 0) {            av_log(NULL, AV_LOG_ERROR, "av_samples_get_buffer_size() failed\n");            return -1;        }        if (wanted_nb_samples != af->frame->nb_samples) {            if (swr_set_compensation(is->swr_ctx, (wanted_nb_samples - af->frame->nb_samples) * is->audio_tgt.freq / af->frame->sample_rate,                                        wanted_nb_samples * is->audio_tgt.freq / af->frame->sample_rate) < 0) {                av_log(NULL, AV_LOG_ERROR, "swr_set_compensation() failed\n");                return -1;            }        }        av_fast_malloc(&is->audio_buf1, &is->audio_buf1_size, out_size);        if (!is->audio_buf1)            return AVERROR(ENOMEM);        len2 = swr_convert(is->swr_ctx, out, out_count, in, af->frame->nb_samples);        if (len2 < 0) {            av_log(NULL, AV_LOG_ERROR, "swr_convert() failed\n");            return -1;        }        if (len2 == out_count) {            av_log(NULL, AV_LOG_WARNING, "audio buffer is probably too small\n");            if (swr_init(is->swr_ctx) < 0)                swr_free(&is->swr_ctx);        }        is->audio_buf = is->audio_buf1;        int bytes_per_sample = av_get_bytes_per_sample(is->audio_tgt.fmt);        resampled_data_size = len2 * is->audio_tgt.channels * bytes_per_sample;#if defined(__ANDROID__)        if (ffp->soundtouch_enable && ffp->pf_playback_rate != 1.0f && !is->abort_request) {            av_fast_malloc(&is->audio_new_buf, &is->audio_new_buf_size, out_size * translate_time);            for (int i = 0; i < (resampled_data_size / 2); i++)            {                is->audio_new_buf[i] = (is->audio_buf1[i * 2] | (is->audio_buf1[i * 2 + 1] << 8));            }            int ret_len = ijk_soundtouch_translate(is->handle, is->audio_new_buf, (float)(ffp->pf_playback_rate), (float)(1.0f/ffp->pf_playback_rate),                    resampled_data_size / 2, bytes_per_sample, is->audio_tgt.channels, af->frame->sample_rate);            if (ret_len > 0) {                is->audio_buf = (uint8_t*)is->audio_new_buf;                resampled_data_size = ret_len;            } else {                translate_time++;                goto reload;            }        }#endif    } else {        is->audio_buf = af->frame->data[0];        resampled_data_size = data_size;    }    audio_clock0 = is->audio_clock;    /* update the audio clock with the pts */    if (!isnan(af->pts))        is->audio_clock = af->pts + (double) af->frame->nb_samples / af->frame->sample_rate;    else        is->audio_clock = NAN;    is->audio_clock_serial = af->serial;#ifdef FFP_SHOW_AUDIO_DELAY    {        static double last_clock;        printf("audio: delay=%0.3f clock=%0.3f clock0=%0.3f\n",               is->audio_clock - last_clock,               is->audio_clock, audio_clock0);        last_clock = is->audio_clock;    }#endif    if (!is->auddec.first_frame_decoded) {        ALOGD("avcodec/Audio: first frame decoded\n");        is->auddec.first_frame_decoded_time = SDL_GetTickHR();        is->auddec.first_frame_decoded = 1;    }    if (!ffp->first_audio_frame_rendered) {        ffp->first_audio_frame_rendered = 1;        ffp_notify_msg1(ffp, FFP_MSG_AUDIO_RENDERING_START);    }    return resampled_data_size;}/* prepare a new audio buffer */static void sdl_audio_callback(void *opaque, Uint8 *stream, int len){    FFPlayer *ffp = opaque;    VideoState *is = ffp->is;    int audio_size, len1;    if (!ffp || !is) {        memset(stream, 0, len);        return;    }    ffp->audio_callback_time = av_gettime_relative();    if (ffp->pf_playback_rate_changed) {        ffp->pf_playback_rate_changed = 0;#if defined(__ANDROID__)        if (!ffp->soundtouch_enable) {            SDL_AoutSetPlaybackRate(ffp->aout, ffp->pf_playback_rate);        }#else        SDL_AoutSetPlaybackRate(ffp->aout, ffp->pf_playback_rate);#endif    }    if (ffp->pf_playback_volume_changed) {        ffp->pf_playback_volume_changed = 0;        SDL_AoutSetPlaybackVolume(ffp->aout, ffp->pf_playback_volume);    }    while (len > 0) {        if (is->audio_buf_index >= is->audio_buf_size) {           audio_size = audio_decode_frame(ffp);           if (audio_size < 0) {                /* if error, just output silence */               is->audio_buf = NULL;               is->audio_buf_size = SDL_AUDIO_MIN_BUFFER_SIZE / is->audio_tgt.frame_size * is->audio_tgt.frame_size;           } else {               if (is->show_mode != SHOW_MODE_VIDEO)                   update_sample_display(is, (int16_t *)is->audio_buf, audio_size);               is->audio_buf_size = audio_size;           }           is->audio_buf_index = 0;        }        if (is->auddec.pkt_serial != is->audioq.serial) {            is->audio_buf_index = is->audio_buf_size;            memset(stream, 0, len);            // stream += len;            // len = 0;            SDL_AoutFlushAudio(ffp->aout);            break;        }        len1 = is->audio_buf_size - is->audio_buf_index;        if (len1 > len)            len1 = len;        if (!is->muted && is->audio_buf && is->audio_volume == SDL_MIX_MAXVOLUME)            memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);        else {            memset(stream, 0, len1);            if (!is->muted && is->audio_buf)                SDL_MixAudio(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1, is->audio_volume);        }        len -= len1;        stream += len1;        is->audio_buf_index += len1;    }    is->audio_write_buf_size = is->audio_buf_size - is->audio_buf_index;    /* Let's assume the audio driver that is used by SDL has two periods. */    if (!isnan(is->audio_clock)) {        set_clock_at(&is->audclk, is->audio_clock - (double)(is->audio_write_buf_size) / is->audio_tgt.bytes_per_sec - SDL_AoutGetLatencySeconds(ffp->aout), is->audio_clock_serial, ffp->audio_callback_time / 1000000.0);        sync_clock_to_slave(&is->extclk, &is->audclk);    }}static int audio_open(FFPlayer *opaque, int64_t wanted_channel_layout, int wanted_nb_channels, int wanted_sample_rate, struct AudioParams *audio_hw_params){    FFPlayer *ffp = opaque;    VideoState *is = ffp->is;    SDL_AudioSpec wanted_spec, spec;    const char *env;    static const int next_nb_channels[] = {0, 0, 1, 6, 2, 6, 4, 6};#ifdef FFP_MERGE    static const int next_sample_rates[] = {0, 44100, 48000, 96000, 192000};#endif    static const int next_sample_rates[] = {0, 44100, 48000};    int next_sample_rate_idx = FF_ARRAY_ELEMS(next_sample_rates) - 1;    env = SDL_getenv("SDL_AUDIO_CHANNELS");    if (env) {        wanted_nb_channels = atoi(env);        wanted_channel_layout = av_get_default_channel_layout(wanted_nb_channels);    }    if (!wanted_channel_layout || wanted_nb_channels != av_get_channel_layout_nb_channels(wanted_channel_layout)) {        wanted_channel_layout = av_get_default_channel_layout(wanted_nb_channels);        wanted_channel_layout &= ~AV_CH_LAYOUT_STEREO_DOWNMIX;    }    wanted_nb_channels = av_get_channel_layout_nb_channels(wanted_channel_layout);    wanted_spec.channels = wanted_nb_channels;    wanted_spec.freq = wanted_sample_rate;    if (wanted_spec.freq <= 0 || wanted_spec.channels <= 0) {        av_log(NULL, AV_LOG_ERROR, "Invalid sample rate or channel count!\n");        return -1;    }    while (next_sample_rate_idx && next_sample_rates[next_sample_rate_idx] >= wanted_spec.freq)        next_sample_rate_idx--;    wanted_spec.format = AUDIO_S16SYS;    wanted_spec.silence = 0;    wanted_spec.samples = FFMAX(SDL_AUDIO_MIN_BUFFER_SIZE, 2 << av_log2(wanted_spec.freq / SDL_AoutGetAudioPerSecondCallBacks(ffp->aout)));    wanted_spec.callback = sdl_audio_callback;    wanted_spec.userdata = opaque;    while (SDL_AoutOpenAudio(ffp->aout, &wanted_spec, &spec) < 0) {        /* avoid infinity loop on exit. --by bbcallen */        if (is->abort_request)            return -1;        av_log(NULL, AV_LOG_WARNING, "SDL_OpenAudio (%d channels, %d Hz): %s\n",               wanted_spec.channels, wanted_spec.freq, SDL_GetError());        wanted_spec.channels = next_nb_channels[FFMIN(7, wanted_spec.channels)];        if (!wanted_spec.channels) {            wanted_spec.freq = next_sample_rates[next_sample_rate_idx--];            wanted_spec.channels = wanted_nb_channels;            if (!wanted_spec.freq) {                av_log(NULL, AV_LOG_ERROR,                       "No more combinations to try, audio open failed\n");                return -1;            }        }        wanted_channel_layout = av_get_default_channel_layout(wanted_spec.channels);    }    if (spec.format != AUDIO_S16SYS) {        av_log(NULL, AV_LOG_ERROR,               "SDL advised audio format %d is not supported!\n", spec.format);        return -1;    }    if (spec.channels != wanted_spec.channels) {        wanted_channel_layout = av_get_default_channel_layout(spec.channels);        if (!wanted_channel_layout) {            av_log(NULL, AV_LOG_ERROR,                   "SDL advised channel count %d is not supported!\n", spec.channels);            return -1;        }    }    audio_hw_params->fmt = AV_SAMPLE_FMT_S16;    audio_hw_params->freq = spec.freq;    audio_hw_params->channel_layout = wanted_channel_layout;    audio_hw_params->channels =  spec.channels;    audio_hw_params->frame_size = av_samples_get_buffer_size(NULL, audio_hw_params->channels, 1, audio_hw_params->fmt, 1);    audio_hw_params->bytes_per_sec = av_samples_get_buffer_size(NULL, audio_hw_params->channels, audio_hw_params->freq, audio_hw_params->fmt, 1);    if (audio_hw_params->bytes_per_sec <= 0 || audio_hw_params->frame_size <= 0) {        av_log(NULL, AV_LOG_ERROR, "av_samples_get_buffer_size failed\n");        return -1;    }    SDL_AoutSetDefaultLatencySeconds(ffp->aout, ((double)(2 * spec.size)) / audio_hw_params->bytes_per_sec);    return spec.size;} //此处设置流的信息 向is内部填充audio_stream和video_stream//is->audio_stream = st_index[AVMEDIA_TYPE_AUDIO];//is->video_stream = st_index[AVMEDIA_TYPE_VIDEO];/* open a given stream. Return 0 if OK */static int stream_component_open(FFPlayer *ffp, int stream_index){    VideoState *is = ffp->is;    AVFormatContext *ic = is->ic;    AVCodecContext *avctx;    AVCodec *codec = NULL;    const char *forced_codec_name = NULL;    AVDictionary *opts = NULL;    AVDictionaryEntry *t = NULL;    int sample_rate, nb_channels;    int64_t channel_layout;    int ret = 0;    int stream_lowres = ffp->lowres;    if (stream_index < 0 || stream_index >= ic->nb_streams)        return -1;    avctx = avcodec_alloc_context3(NULL);    if (!avctx)        return AVERROR(ENOMEM);    ret = avcodec_parameters_to_context(avctx, ic->streams[stream_index]->codecpar);    if (ret < 0)        goto fail;    av_codec_set_pkt_timebase(avctx, ic->streams[stream_index]->time_base);    codec = avcodec_find_decoder(avctx->codec_id);    switch (avctx->codec_type) {        case AVMEDIA_TYPE_AUDIO   : is->last_audio_stream    = stream_index; forced_codec_name = ffp->audio_codec_name; break;        case AVMEDIA_TYPE_SUBTITLE: is->last_subtitle_stream = stream_index; forced_codec_name = ffp->subtitle_codec_name; break;        case AVMEDIA_TYPE_VIDEO   : is->last_video_stream    = stream_index; forced_codec_name = ffp->video_codec_name; break;        default: break;    }    if (forced_codec_name)        codec = avcodec_find_decoder_by_name(forced_codec_name);    if (!codec) {        if (forced_codec_name) av_log(NULL, AV_LOG_WARNING,                                      "No codec could be found with name '%s'\n", forced_codec_name);        else                   av_log(NULL, AV_LOG_WARNING,                                      "No codec could be found with id %d\n", avctx->codec_id);        ret = AVERROR(EINVAL);        goto fail;    }    avctx->codec_id = codec->id;    if(stream_lowres > av_codec_get_max_lowres(codec)){        av_log(avctx, AV_LOG_WARNING, "The maximum value for lowres supported by the decoder is %d\n",                av_codec_get_max_lowres(codec));        stream_lowres = av_codec_get_max_lowres(codec);    }    av_codec_set_lowres(avctx, stream_lowres);#if FF_API_EMU_EDGE    if(stream_lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE;#endif    if (ffp->fast)        avctx->flags2 |= AV_CODEC_FLAG2_FAST;#if FF_API_EMU_EDGE    if(codec->capabilities & AV_CODEC_CAP_DR1)        avctx->flags |= CODEC_FLAG_EMU_EDGE;#endif    opts = filter_codec_opts(ffp->codec_opts, avctx->codec_id, ic, ic->streams[stream_index], codec);    if (!av_dict_get(opts, "threads", NULL, 0))        av_dict_set(&opts, "threads", "auto", 0);    if (stream_lowres)        av_dict_set_int(&opts, "lowres", stream_lowres, 0);    if (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO)        av_dict_set(&opts, "refcounted_frames", "1", 0);    if ((ret = avcodec_open2(avctx, codec, &opts)) < 0) {        goto fail;    }    if ((t = av_dict_get(opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {        av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);#ifdef FFP_MERGE        ret =  AVERROR_OPTION_NOT_FOUND;        goto fail;#endif    }    is->eof = 0;    ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;    switch (avctx->codec_type) {    case AVMEDIA_TYPE_AUDIO:#if CONFIG_AVFILTER        {            AVFilterLink *link;            is->audio_filter_src.freq           = avctx->sample_rate;            is->audio_filter_src.channels       = avctx->channels;            is->audio_filter_src.channel_layout = get_valid_channel_layout(avctx->channel_layout, avctx->channels);            is->audio_filter_src.fmt            = avctx->sample_fmt;            SDL_LockMutex(ffp->af_mutex);            if ((ret = configure_audio_filters(ffp, ffp->afilters, 0)) < 0) {                SDL_UnlockMutex(ffp->af_mutex);                goto fail;            }            ffp->af_changed = 0;            SDL_UnlockMutex(ffp->af_mutex);            link = is->out_audio_filter->inputs[0];            sample_rate    = link->sample_rate;            nb_channels    = avfilter_link_get_channels(link);            channel_layout = link->channel_layout;        }#else        sample_rate    = avctx->sample_rate;        nb_channels    = avctx->channels;        channel_layout = avctx->channel_layout;#endif        /* prepare audio output */        if ((ret = audio_open(ffp, channel_layout, nb_channels, sample_rate, &is->audio_tgt)) < 0)            goto fail;        ffp_set_audio_codec_info(ffp, AVCODEC_MODULE_NAME, avcodec_get_name(avctx->codec_id));        is->audio_hw_buf_size = ret;        is->audio_src = is->audio_tgt;        is->audio_buf_size  = 0;        is->audio_buf_index = 0;        /* init averaging filter */        is->audio_diff_avg_coef  = exp(log(0.01) / AUDIO_DIFF_AVG_NB);        is->audio_diff_avg_count = 0;        /* since we do not have a precise anough audio FIFO fullness,           we correct audio sync only if larger than this threshold */        is->audio_diff_threshold = 2.0 * is->audio_hw_buf_size / is->audio_tgt.bytes_per_sec;        //重要部分 设置音频流标号        is->audio_stream = stream_index;        is->audio_st = ic->streams[stream_index];        decoder_init(&is->auddec, avctx, &is->audioq, is->continue_read_thread);        if ((is->ic->iformat->flags & (AVFMT_NOBINSEARCH | AVFMT_NOGENSEARCH | AVFMT_NO_BYTE_SEEK)) && !is->ic->iformat->read_seek) {            is->auddec.start_pts = is->audio_st->start_time;            is->auddec.start_pts_tb = is->audio_st->time_base;        }        if ((ret = decoder_start(&is->auddec, audio_thread, ffp, "ff_audio_dec")) < 0)            goto out;        SDL_AoutPauseAudio(ffp->aout, 0);        break;    case AVMEDIA_TYPE_VIDEO:        //重要部分 设置视频流标号        is->video_stream = stream_index;        is->video_st = ic->streams[stream_index];        decoder_init(&is->viddec, avctx, &is->videoq, is->continue_read_thread);        ffp->node_vdec = ffpipeline_open_video_decoder(ffp->pipeline, ffp);        if (!ffp->node_vdec)            goto fail;        if ((ret = decoder_start(&is->viddec, video_thread, ffp, "ff_video_dec")) < 0)            goto out;        is->queue_attachments_req = 1;        if (ffp->max_fps >= 0) {            if(is->video_st->avg_frame_rate.den && is->video_st->avg_frame_rate.num) {                double fps = av_q2d(is->video_st->avg_frame_rate);                SDL_ProfilerReset(&is->viddec.decode_profiler, fps + 0.5);                if (fps > ffp->max_fps && fps < 130.0) {                    is->is_video_high_fps = 1;                    av_log(ffp, AV_LOG_WARNING, "fps: %lf (too high)\n", fps);                } else {                    av_log(ffp, AV_LOG_WARNING, "fps: %lf (normal)\n", fps);                }            }            if(is->video_st->r_frame_rate.den && is->video_st->r_frame_rate.num) {                double tbr = av_q2d(is->video_st->r_frame_rate);                if (tbr > ffp->max_fps && tbr < 130.0) {                    is->is_video_high_fps = 1;                    av_log(ffp, AV_LOG_WARNING, "fps: %lf (too high)\n", tbr);                } else {                    av_log(ffp, AV_LOG_WARNING, "fps: %lf (normal)\n", tbr);                }            }        }        if (is->is_video_high_fps) {            avctx->skip_frame       = FFMAX(avctx->skip_frame, AVDISCARD_NONREF);            avctx->skip_loop_filter = FFMAX(avctx->skip_loop_filter, AVDISCARD_NONREF);            avctx->skip_idct        = FFMAX(avctx->skip_loop_filter, AVDISCARD_NONREF);        }        break;    case AVMEDIA_TYPE_SUBTITLE:        if (!ffp->subtitle) break;        is->subtitle_stream = stream_index;        is->subtitle_st = ic->streams[stream_index];        ffp_set_subtitle_codec_info(ffp, AVCODEC_MODULE_NAME, avcodec_get_name(avctx->codec_id));        decoder_init(&is->subdec, avctx, &is->subtitleq, is->continue_read_thread);        if ((ret = decoder_start(&is->subdec, subtitle_thread, ffp, "ff_subtitle_dec")) < 0)            goto out;        break;    default:        break;    }    goto out;fail:    avcodec_free_context(&avctx);out:    av_dict_free(&opts);    return ret;}static int decode_interrupt_cb(void *ctx){    VideoState *is = ctx;    return is->abort_request;}static int stream_has_enough_packets(AVStream *st, int stream_id, PacketQueue *queue, int min_frames) {    return stream_id < 0 ||           queue->abort_request ||           (st->disposition & AV_DISPOSITION_ATTACHED_PIC) ||#ifdef FFP_MERGE           queue->nb_packets > MIN_FRAMES && (!queue->duration || av_q2d(st->time_base) * queue->duration > 1.0);#endif           queue->nb_packets > min_frames;}static int is_realtime(AVFormatContext *s){    if(   !strcmp(s->iformat->name, "rtp")       || !strcmp(s->iformat->name, "rtsp")       || !strcmp(s->iformat->name, "sdp")    )        return 1;    if(s->pb && (   !strncmp(s->filename, "rtp:", 4)                 || !strncmp(s->filename, "udp:", 4)                )    )        return 1;    return 0;}    //static int refind audio streamstatic int refind_audio_stream(FFPlayer *ffp, AVFormatContext *ic, int stream_index) {    /* open the streams */    if (stream_index >= 0) {#warning 测试代码        //打开音频流        stream_component_open(ffp, stream_index);        av_log(NULL, AV_LOG_INFO, "打开音频流stream\n");    }    ijkmeta_set_avformat_context_l(ffp->meta, ic);    if (stream_index >= 0){        ijkmeta_set_int64_l(ffp->meta, IJKM_KEY_AUDIO_STREAM, stream_index);        av_log(NULL, AV_LOG_INFO, "音频原始数据初始化\n");    }    return 0;}/* this thread gets the stream from the disk or the network */static int read_thread(void *arg){    FFPlayer *ffp = arg;    VideoState *is = ffp->is;    AVFormatContext *ic = NULL;    int err, i, ret __unused;    int st_index[AVMEDIA_TYPE_NB];    AVPacket pkt1, *pkt = &pkt1;    int64_t stream_start_time;    int completed = 0;    int pkt_in_play_range = 0;    AVDictionaryEntry *t;    AVDictionary **opts;    int orig_nb_streams;    SDL_mutex *wait_mutex = SDL_CreateMutex();    int scan_all_pmts_set = 0;    int64_t pkt_ts;    int last_error = 0;    int64_t prev_io_tick_counter = 0;    int64_t io_tick_counter = 0;    if (!wait_mutex) {        av_log(NULL, AV_LOG_FATAL, "SDL_CreateMutex(): %s\n", SDL_GetError());        ret = AVERROR(ENOMEM);        goto fail;    }    memset(st_index, -1, sizeof(st_index));    is->last_video_stream = is->video_stream = -1;    is->last_audio_stream = is->audio_stream = -1;    is->last_subtitle_stream = is->subtitle_stream = -1;    is->eof = 0;    ic = avformat_alloc_context();    if (!ic) {        av_log(NULL, AV_LOG_FATAL, "Could not allocate context.\n");        ret = AVERROR(ENOMEM);        goto fail;    }    ic->interrupt_callback.callback = decode_interrupt_cb;    ic->interrupt_callback.opaque = is;    if (!av_dict_get(ffp->format_opts, "scan_all_pmts", NULL, AV_DICT_MATCH_CASE)) {        av_dict_set(&ffp->format_opts, "scan_all_pmts", "1", AV_DICT_DONT_OVERWRITE);        scan_all_pmts_set = 1;    }    if (av_stristart(is->filename, "rtmp", NULL) ||        av_stristart(is->filename, "rtsp", NULL)) {        // There is total different meaning for 'timeout' option in rtmp        av_log(ffp, AV_LOG_WARNING, "remove 'timeout' option for rtmp.\n");        av_dict_set(&ffp->format_opts, "timeout", NULL, 0);    }    if (ffp->iformat_name)        is->iformat = av_find_input_format(ffp->iformat_name);    err = avformat_open_input(&ic, is->filename, is->iformat, &ffp->format_opts);    if (err < 0) {        print_error(is->filename, err);        ret = -1;        goto fail;    }    if (scan_all_pmts_set)        av_dict_set(&ffp->format_opts, "scan_all_pmts", NULL, AV_DICT_MATCH_CASE);    if ((t = av_dict_get(ffp->format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {        av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);#ifdef FFP_MERGE        ret = AVERROR_OPTION_NOT_FOUND;        goto fail;#endif    }    is->ic = ic;    if (ffp->genpts)        ic->flags |= AVFMT_FLAG_GENPTS;    av_format_inject_global_side_data(ic);    opts = setup_find_stream_info_opts(ic, ffp->codec_opts);    orig_nb_streams = ic->nb_streams;    err = avformat_find_stream_info(ic, opts);    if (err < 0){        av_log(NULL, AV_LOG_ERROR, "could not find stream information\n");    }else{        //打印出解析到的媒体信息        av_dump_format(ic, 0, is->filename, 0);        int audio_stream_idx = av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO, -1, -1, NULL, 0);        if (audio_stream_idx < 0){            av_log(NULL, AV_LOG_ERROR, "严重错误没有音频流\n");        }else if (audio_stream_idx >=0 ){            AVStream **streams = ic->streams;            AVStream audio_stream = *streams[audio_stream_idx];            av_log(NULL, AV_LOG_INFO, "audio_stream - %p\n", &audio_stream);                        av_log(NULL, AV_LOG_INFO, "is->audio_stream = %d\n", is->audio_stream);            av_log(NULL, AV_LOG_INFO, "is->video_stream = %d\n", is->video_stream);        }    }    for (i = 0; i < orig_nb_streams; i++)        av_dict_free(&opts[i]);    av_freep(&opts);    if (err < 0) {        av_log(NULL, AV_LOG_WARNING,               "%s: could not find codec parameters\n", is->filename);        ret = -1;        goto fail;    }    if (ic->pb)        ic->pb->eof_reached = 0; // FIXME hack, ffplay maybe should not use avio_feof() to test for the end    if (ffp->seek_by_bytes < 0)        ffp->seek_by_bytes = !!(ic->iformat->flags & AVFMT_TS_DISCONT) && strcmp("ogg", ic->iformat->name);    is->max_frame_duration = (ic->iformat->flags & AVFMT_TS_DISCONT) ? 10.0 : 3600.0;    is->max_frame_duration = 10.0;    av_log(ffp, AV_LOG_INFO, "max_frame_duration: %.3f\n", is->max_frame_duration);#ifdef FFP_MERGE    if (!window_title && (t = av_dict_get(ic->metadata, "title", NULL, 0)))        window_title = av_asprintf("%s - %s", t->value, input_filename);#endif    /* if seeking requested, we execute it */    if (ffp->start_time != AV_NOPTS_VALUE) {        int64_t timestamp;        timestamp = ffp->start_time;        /* add the stream start time */        if (ic->start_time != AV_NOPTS_VALUE)            timestamp += ic->start_time;        ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);        if (ret < 0) {            av_log(NULL, AV_LOG_WARNING, "%s: could not seek to position %0.3f\n",                    is->filename, (double)timestamp / AV_TIME_BASE);        }    }    is->realtime = is_realtime(ic);    if (true || ffp->show_status){        //打印出解析到的媒体信息        av_dump_format(ic, 0, is->filename, 0);    }    int video_stream_count = 0;    int h264_stream_count = 0;    int first_h264_stream = -1;    for (i = 0; i < ic->nb_streams; i++) {        AVStream *st = ic->streams[i];        enum AVMediaType type = st->codecpar->codec_type;#warning 此处的设置将 数据包全部丢弃        //抛弃音频包规则使用默认丢弃规则 默认为AVDISCARD_ALL        st->discard = AVDISCARD_ALL;        if (type >= 0 && ffp->wanted_stream_spec[type] && st_index[type] == -1)            if (avformat_match_stream_specifier(ic, st, ffp->wanted_stream_spec[type]) > 0)                st_index[type] = i;        // choose first h264        if (type == AVMEDIA_TYPE_VIDEO) {            enum AVCodecID codec_id = st->codecpar->codec_id;            video_stream_count++;            if (codec_id == AV_CODEC_ID_H264) {                h264_stream_count++;                if (first_h264_stream < 0)                    first_h264_stream = i;            }        }    }    if (video_stream_count > 1 && st_index[AVMEDIA_TYPE_VIDEO] < 0) {        st_index[AVMEDIA_TYPE_VIDEO] = first_h264_stream;        av_log(NULL, AV_LOG_WARNING, "multiple video stream found, prefer first h264 stream: %d\n", first_h264_stream);    }    if (!ffp->video_disable)        st_index[AVMEDIA_TYPE_VIDEO] =            av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO,                                st_index[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);    if (!ffp->audio_disable){        st_index[AVMEDIA_TYPE_AUDIO] =            av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO,                                st_index[AVMEDIA_TYPE_AUDIO],                                st_index[AVMEDIA_TYPE_VIDEO],                                NULL, 0);        av_log(NULL, AV_LOG_INFO, "通过 av_find_best_stream 函数来取出指向特定指定路数的 AVStream 对象\n");    }    if (!ffp->video_disable && !ffp->subtitle_disable)        st_index[AVMEDIA_TYPE_SUBTITLE] =            av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE,                                st_index[AVMEDIA_TYPE_SUBTITLE],                                (st_index[AVMEDIA_TYPE_AUDIO] >= 0 ?                                 st_index[AVMEDIA_TYPE_AUDIO] :                                 st_index[AVMEDIA_TYPE_VIDEO]),                                NULL, 0);    is->show_mode = ffp->show_mode;#ifdef FFP_MERGE // bbc: dunno if we need this    if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {        AVStream *st = ic->streams[st_index[AVMEDIA_TYPE_VIDEO]];        AVCodecParameters *codecpar = st->codecpar;        AVRational sar = av_guess_sample_aspect_ratio(ic, st, NULL);        if (codecpar->width)            set_default_window_size(codecpar->width, codecpar->height, sar);    }#endif        av_log(NULL, AV_LOG_INFO, "is->audio_stream = %d\n", is->audio_stream);    av_log(NULL, AV_LOG_INFO, "is->video_stream = %d\n", is->video_stream);        /* open the streams */    if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {#warning 测试代码        //打开音频流        stream_component_open(ffp, st_index[AVMEDIA_TYPE_AUDIO]);                //抛弃音频包规则使用默认丢弃规则 默认为AVDISCARD_ALL        //ic->streams[st_index[AVMEDIA_TYPE_AUDIO]]->discard = AVDISCARD_DEFAULT;                av_log(NULL, AV_LOG_WARNING, "打开音频流stream\n");    }        av_log(NULL, AV_LOG_INFO, "is->audio_stream = %d\n", is->audio_stream);    av_log(NULL, AV_LOG_INFO, "is->video_stream = %d\n", is->video_stream);    ret = -1;    if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {        ret = stream_component_open(ffp, st_index[AVMEDIA_TYPE_VIDEO]);    }        av_log(NULL, AV_LOG_INFO, "is->audio_stream = %d\n", is->audio_stream);    av_log(NULL, AV_LOG_INFO, "is->video_stream = %d\n", is->video_stream);        if (is->show_mode == SHOW_MODE_NONE)        is->show_mode = ret >= 0 ? SHOW_MODE_VIDEO : SHOW_MODE_RDFT;    if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {        stream_component_open(ffp, st_index[AVMEDIA_TYPE_SUBTITLE]);    }    av_log(NULL, AV_LOG_INFO, "is->audio_stream = %d\n", is->audio_stream);    av_log(NULL, AV_LOG_INFO, "is->video_stream = %d\n", is->video_stream);        ijkmeta_set_avformat_context_l(ffp->meta, ic);    ffp->stat.bit_rate = ic->bit_rate;    if (st_index[AVMEDIA_TYPE_VIDEO] >= 0)        ijkmeta_set_int64_l(ffp->meta, IJKM_KEY_VIDEO_STREAM, st_index[AVMEDIA_TYPE_VIDEO]);    if (st_index[AVMEDIA_TYPE_AUDIO] >= 0){        ijkmeta_set_int64_l(ffp->meta, IJKM_KEY_AUDIO_STREAM, st_index[AVMEDIA_TYPE_AUDIO]);        av_log(NULL, AV_LOG_INFO, "音频原始数据初始化\n");    }    if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0)        ijkmeta_set_int64_l(ffp->meta, IJKM_KEY_TIMEDTEXT_STREAM, st_index[AVMEDIA_TYPE_SUBTITLE]);    if (is->video_stream < 0 && is->audio_stream < 0) {        av_log(NULL, AV_LOG_FATAL, "Failed to open file '%s' or configure filtergraph\n",               is->filename);        ret = -1;        goto fail;    }        av_log(NULL, AV_LOG_INFO, "is->audio_stream = %d\n", is->audio_stream);    av_log(NULL, AV_LOG_INFO, "is->video_stream = %d\n", is->video_stream);        if (is->audio_stream >= 0) {        is->audioq.is_buffer_indicator = 1;        is->buffer_indicator_queue = &is->audioq;        av_log(NULL, AV_LOG_INFO, "audio_stream 初始化\n");    } else if (is->video_stream >= 0) {        is->videoq.is_buffer_indicator = 1;        is->buffer_indicator_queue = &is->videoq;    } else {        assert("invalid streams");    }    if (ffp->infinite_buffer < 0 && is->realtime)        ffp->infinite_buffer = 1;    if (!ffp->start_on_prepared)        toggle_pause(ffp, 1);    if (is->video_st && is->video_st->codecpar) {        AVCodecParameters *codecpar = is->video_st->codecpar;        ffp_notify_msg3(ffp, FFP_MSG_VIDEO_SIZE_CHANGED, codecpar->width, codecpar->height);        ffp_notify_msg3(ffp, FFP_MSG_SAR_CHANGED, codecpar->sample_aspect_ratio.num, codecpar->sample_aspect_ratio.den);    }    ffp->prepared = true;    ffp_notify_msg1(ffp, FFP_MSG_PREPARED);    if (!ffp->start_on_prepared) {        while (is->pause_req && !is->abort_request) {            SDL_Delay(100);        }    }    if (ffp->auto_resume) {        ffp_notify_msg1(ffp, FFP_REQ_START);        ffp->auto_resume = 0;    }    /* offset should be seeked*/    if (ffp->seek_at_start > 0) {        ffp_seek_to_l(ffp, (long)(ffp->seek_at_start));    }//---------------------------------------------------------------------分割线--------------------------------------------------------------------------------------------//---------------------------------------------------------------------分割线--------------------------------------------------------------------------------------------//---------------------------------------------------------------------分割线--------------------------------------------------------------------------------------------    for (;;) {        if (is->abort_request)            break;#ifdef FFP_MERGE        if (is->paused != is->last_paused) {            is->last_paused = is->paused;            if (is->paused)                is->read_pause_return = av_read_pause(ic);            else                av_read_play(ic);        }#endif#if CONFIG_RTSP_DEMUXER || CONFIG_MMSH_PROTOCOL        if (is->paused &&                (!strcmp(ic->iformat->name, "rtsp") ||                 (ic->pb && !strncmp(ffp->input_filename, "mmsh:", 5)))) {            /* wait 10 ms to avoid trying to get another packet */            /* XXX: horrible */            SDL_Delay(10);            continue;        }#endif        if (is->seek_req) {            int64_t seek_target = is->seek_pos;            int64_t seek_min    = is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;            int64_t seek_max    = is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;// FIXME the +-2 is due to rounding being not done in the correct direction in generation//      of the seek_pos/seek_rel variables            ffp_toggle_buffering(ffp, 1);            ffp_notify_msg3(ffp, FFP_MSG_BUFFERING_UPDATE, 0, 0);            ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);            if (ret < 0) {                av_log(NULL, AV_LOG_ERROR,                       "%s: error while seeking\n", is->ic->filename);            } else {                if (is->audio_stream >= 0) {                    packet_queue_flush(&is->audioq);                    packet_queue_put(&is->audioq, &flush_pkt);                }                if (is->subtitle_stream >= 0) {                    packet_queue_flush(&is->subtitleq);                    packet_queue_put(&is->subtitleq, &flush_pkt);                }                if (is->video_stream >= 0) {                    if (ffp->node_vdec) {                        ffpipenode_flush(ffp->node_vdec);                    }                    packet_queue_flush(&is->videoq);                    packet_queue_put(&is->videoq, &flush_pkt);                }                if (is->seek_flags & AVSEEK_FLAG_BYTE) {                   set_clock(&is->extclk, NAN, 0);                } else {                   set_clock(&is->extclk, seek_target / (double)AV_TIME_BASE, 0);                }                is->latest_seek_load_serial = is->videoq.serial;                is->latest_seek_load_start_at = av_gettime();            }            ffp->dcc.current_high_water_mark_in_ms = ffp->dcc.first_high_water_mark_in_ms;            is->seek_req = 0;            is->queue_attachments_req = 1;            is->eof = 0;#ifdef FFP_MERGE            if (is->paused)                step_to_next_frame(is);#endif            completed = 0;            SDL_LockMutex(ffp->is->play_mutex);            if (ffp->auto_resume) {                is->pause_req = 0;                if (ffp->packet_buffering)                    is->buffering_on = 1;                ffp->auto_resume = 0;                stream_update_pause_l(ffp);            }            if (is->pause_req)                step_to_next_frame_l(ffp);            SDL_UnlockMutex(ffp->is->play_mutex);            if (ffp->enable_accurate_seek) {                is->drop_aframe_count = 0;                is->drop_vframe_count = 0;                SDL_LockMutex(is->accurate_seek_mutex);                is->audio_accurate_seek_req = 1;                is->video_accurate_seek_req = 1;                SDL_CondSignal(is->audio_accurate_seek_cond);                SDL_CondSignal(is->video_accurate_seek_cond);                SDL_UnlockMutex(is->accurate_seek_mutex);            }            ffp_notify_msg3(ffp, FFP_MSG_SEEK_COMPLETE, (int)fftime_to_milliseconds(seek_target), ret);            ffp_toggle_buffering(ffp, 1);        }        if (is->queue_attachments_req) {            if (is->video_st && (is->video_st->disposition & AV_DISPOSITION_ATTACHED_PIC)) {                AVPacket copy;                if ((ret = av_copy_packet(&copy, &is->video_st->attached_pic)) < 0)                    goto fail;                packet_queue_put(&is->videoq, &copy);                packet_queue_put_nullpacket(&is->videoq, is->video_stream);            }            is->queue_attachments_req = 0;        }        /* if the queue are full, no need to read more */        if (ffp->infinite_buffer<1 && !is->seek_req &&#ifdef FFP_MERGE              (is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE#else              (is->audioq.size + is->videoq.size + is->subtitleq.size > ffp->dcc.max_buffer_size#endif            || (   stream_has_enough_packets(is->audio_st, is->audio_stream, &is->audioq, MIN_FRAMES)                && stream_has_enough_packets(is->video_st, is->video_stream, &is->videoq, MIN_FRAMES)                && stream_has_enough_packets(is->subtitle_st, is->subtitle_stream, &is->subtitleq, MIN_FRAMES)))) {            if (!is->eof) {                ffp_toggle_buffering(ffp, 0);            }            /* wait 10 ms */            SDL_LockMutex(wait_mutex);            SDL_CondWaitTimeout(is->continue_read_thread, wait_mutex, 10);            SDL_UnlockMutex(wait_mutex);            continue;        }        if ((!is->paused || completed) &&            (!is->audio_st || (is->auddec.finished == is->audioq.serial && frame_queue_nb_remaining(&is->sampq) == 0)) &&            (!is->video_st || (is->viddec.finished == is->videoq.serial && frame_queue_nb_remaining(&is->pictq) == 0))) {            if (ffp->loop != 1 && (!ffp->loop || --ffp->loop)) {                stream_seek(is, ffp->start_time != AV_NOPTS_VALUE ? ffp->start_time : 0, 0, 0);            } else if (ffp->autoexit) {                ret = AVERROR_EOF;                goto fail;            } else {                ffp_statistic_l(ffp);                if (completed) {                    av_log(ffp, AV_LOG_INFO, "ffp_toggle_buffering: eof\n");                    SDL_LockMutex(wait_mutex);                    // infinite wait may block shutdown                    while(!is->abort_request && !is->seek_req)                        SDL_CondWaitTimeout(is->continue_read_thread, wait_mutex, 100);                    SDL_UnlockMutex(wait_mutex);                    if (!is->abort_request)                        continue;                } else {                    completed = 1;                    ffp->auto_resume = 0;                    // TODO: 0 it's a bit early to notify complete here                    ffp_toggle_buffering(ffp, 0);                    toggle_pause(ffp, 1);                    if (ffp->error) {                        av_log(ffp, AV_LOG_INFO, "ffp_toggle_buffering: error: %d\n", ffp->error);                        ffp_notify_msg1(ffp, FFP_MSG_ERROR);                    } else {                        av_log(ffp, AV_LOG_INFO, "ffp_toggle_buffering: completed: OK\n");                        ffp_notify_msg1(ffp, FFP_MSG_COMPLETED);                    }                }            }        }        pkt->flags = 0;        ret = av_read_frame(ic, pkt);                    if (is->audio_stream >= 0) {            //之前已经发现音频信息        }else{            if (!ffp->audio_disable){                av_log(NULL, AV_LOG_INFO, "is->audio_stream = %d\n", is->audio_stream);#if 1                int audio_stream_idx = av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO,                                                           st_index[AVMEDIA_TYPE_AUDIO],                                                           st_index[AVMEDIA_TYPE_VIDEO],                                                           NULL, 0);                if (audio_stream_idx >= 0){                    //之前没有发现音频信息                    av_log(NULL, AV_LOG_WARNING, "重要信息发现 -> 音频流\n");                    refind_audio_stream(ffp, ic, audio_stream_idx);                }                av_log(NULL, AV_LOG_INFO, "is->audio_stream = %d\n", is->audio_stream);#endif            }        }        //读音视频数据发生错误        if (ret < 0) {            int pb_eof = 0;            int pb_error = 0;            if ((ret == AVERROR_EOF || avio_feof(ic->pb)) && !is->eof) {                pb_eof = 1;                // check error later            }            if (ic->pb && ic->pb->error) {                pb_eof = 1;                pb_error = ic->pb->error;            }            if (ret == AVERROR_EXIT) {                pb_eof = 1;                pb_error = AVERROR_EXIT;            }            if (pb_eof) {                if (is->video_stream >= 0)                    packet_queue_put_nullpacket(&is->videoq, is->video_stream);                if (is->audio_stream >= 0)                    packet_queue_put_nullpacket(&is->audioq, is->audio_stream);                if (is->subtitle_stream >= 0)                    packet_queue_put_nullpacket(&is->subtitleq, is->subtitle_stream);                is->eof = 1;            }            if (pb_error) {                if (is->video_stream >= 0)                    packet_queue_put_nullpacket(&is->videoq, is->video_stream);                if (is->audio_stream >= 0)                    packet_queue_put_nullpacket(&is->audioq, is->audio_stream);                if (is->subtitle_stream >= 0)                    packet_queue_put_nullpacket(&is->subtitleq, is->subtitle_stream);                is->eof = 1;                ffp->error = pb_error;                av_log(ffp, AV_LOG_ERROR, "av_read_frame error: %x(%c,%c,%c,%c): %s\n", ffp->error,                      (char) (0xff & (ffp->error >> 24)),                      (char) (0xff & (ffp->error >> 16)),                      (char) (0xff & (ffp->error >> 8)),                      (char) (0xff & (ffp->error)),                      ffp_get_error_string(ffp->error));                // break;            } else {                ffp->error = 0;            }            if (is->eof) {                ffp_toggle_buffering(ffp, 0);                SDL_Delay(100);            }            SDL_LockMutex(wait_mutex);            SDL_CondWaitTimeout(is->continue_read_thread, wait_mutex, 10);            SDL_UnlockMutex(wait_mutex);            ffp_statistic_l(ffp);            continue;        } else {            is->eof = 0;        }        //连接发生中断        if (pkt->flags & AV_PKT_FLAG_DISCONTINUITY) {            if (is->audio_stream >= 0) {                packet_queue_put(&is->audioq, &flush_pkt);            }            if (is->subtitle_stream >= 0) {                packet_queue_put(&is->subtitleq, &flush_pkt);            }            if (is->video_stream >= 0) {                packet_queue_put(&is->videoq, &flush_pkt);            }        }        //检查数据包是否在范围由用户指定,那么队列,否则丢弃        /* check if packet is in play range specified by user, then queue, otherwise discard */        stream_start_time = ic->streams[pkt->stream_index]->start_time;        pkt_ts = pkt->pts == AV_NOPTS_VALUE ? pkt->dts : pkt->pts;        pkt_in_play_range = ffp->duration == AV_NOPTS_VALUE ||                (pkt_ts - (stream_start_time != AV_NOPTS_VALUE ? stream_start_time : 0)) *                av_q2d(ic->streams[pkt->stream_index]->time_base) -                (double)(ffp->start_time != AV_NOPTS_VALUE ? ffp->start_time : 0) / 1000000                <= ((double)ffp->duration / 1000000);        if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {            //modify by jeffasd 播放音频            packet_queue_put(&is->audioq, pkt);        } else if (pkt->stream_index == is->video_stream && pkt_in_play_range                   && !(is->video_st && (is->video_st->disposition & AV_DISPOSITION_ATTACHED_PIC))) {            //modify by jeffasd 播放视频            packet_queue_put(&is->videoq, pkt);        } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {            packet_queue_put(&is->subtitleq, pkt);        } else {            av_packet_unref(pkt);        }            //        av_log(ffp, AV_LOG_INFO, "pkt->stream_index %d\n", pkt->stream_index);//        av_log(ffp, AV_LOG_INFO, "is->audio_stream %d\n", is->audio_stream);                if (pkt->stream_index != is->video_stream) {            //rav_log(ffp, AV_LOG_INFO, "**收到音频数据**\n");            av_log(ffp, AV_LOG_INFO, "**receive audio info**\n");        }        ffp_statistic_l(ffp);        if (ffp->packet_buffering) {            io_tick_counter = SDL_GetTickHR();            if (abs((int)(io_tick_counter - prev_io_tick_counter)) > BUFFERING_CHECK_PER_MILLISECONDS) {                prev_io_tick_counter = io_tick_counter;                ffp_check_buffering_l(ffp);            }        }    }    ret = 0; fail:    if (ic && !is->ic)        avformat_close_input(&ic);    if (!ffp->prepared || !is->abort_request) {        ffp->last_error = last_error;        ffp_notify_msg2(ffp, FFP_MSG_ERROR, last_error);    }    SDL_DestroyMutex(wait_mutex);    return 0;}static int video_refresh_thread(void *arg);static VideoState *stream_open(FFPlayer *ffp, const char *filename, AVInputFormat *iformat){    assert(!ffp->is);    VideoState *is;    is = av_mallocz(sizeof(VideoState));    if (!is)        return NULL;    is->filename = av_strdup(filename);    if (!is->filename)        goto fail;    is->iformat = iformat;    is->ytop    = 0;    is->xleft   = 0;#if defined(__ANDROID__)    if (ffp->soundtouch_enable) {        is->handle = ijk_soundtouch_create();    }#endif    /* start video display */    if (frame_queue_init(&is->pictq, &is->videoq, ffp->pictq_size, 1) < 0)        goto fail;    if (frame_queue_init(&is->subpq, &is->subtitleq, SUBPICTURE_QUEUE_SIZE, 0) < 0)        goto fail;    if (frame_queue_init(&is->sampq, &is->audioq, SAMPLE_QUEUE_SIZE, 1) < 0)        goto fail;    if (packet_queue_init(&is->videoq) < 0 ||        packet_queue_init(&is->audioq) < 0 ||        packet_queue_init(&is->subtitleq) < 0)        goto fail;    if (!(is->continue_read_thread = SDL_CreateCond())) {        av_log(NULL, AV_LOG_FATAL, "SDL_CreateCond(): %s\n", SDL_GetError());        goto fail;    }    if (!(is->video_accurate_seek_cond = SDL_CreateCond())) {        av_log(NULL, AV_LOG_FATAL, "SDL_CreateCond(): %s\n", SDL_GetError());        ffp->enable_accurate_seek = 0;    }    if (!(is->audio_accurate_seek_cond = SDL_CreateCond())) {        av_log(NULL, AV_LOG_FATAL, "SDL_CreateCond(): %s\n", SDL_GetError());        ffp->enable_accurate_seek = 0;    }    init_clock(&is->vidclk, &is->videoq.serial);    init_clock(&is->audclk, &is->audioq.serial);    init_clock(&is->extclk, &is->extclk.serial);    is->audio_clock_serial = -1;    is->audio_volume = SDL_MIX_MAXVOLUME;    is->muted = 0;    is->av_sync_type = ffp->av_sync_type;    is->play_mutex = SDL_CreateMutex();    is->accurate_seek_mutex = SDL_CreateMutex();    ffp->is = is;    is->pause_req = !ffp->start_on_prepared;    is->video_refresh_tid = SDL_CreateThreadEx(&is->_video_refresh_tid, video_refresh_thread, ffp, "ff_vout");    if (!is->video_refresh_tid) {        av_freep(&ffp->is);        return NULL;    }    is->read_tid = SDL_CreateThreadEx(&is->_read_tid, read_thread, ffp, "ff_read");    if (!is->read_tid) {        av_log(NULL, AV_LOG_FATAL, "SDL_CreateThread(): %s\n", SDL_GetError());fail:        is->abort_request = true;        if (is->video_refresh_tid)            SDL_WaitThread(is->video_refresh_tid, NULL);        stream_close(ffp);        return NULL;    }    return is;}// FFP_MERGE: stream_cycle_channel// FFP_MERGE: toggle_full_screen// FFP_MERGE: toggle_audio_display// FFP_MERGE: refresh_loop_wait_event// FFP_MERGE: event_loop// FFP_MERGE: opt_frame_size// FFP_MERGE: opt_width// FFP_MERGE: opt_height// FFP_MERGE: opt_format// FFP_MERGE: opt_frame_pix_fmt// FFP_MERGE: opt_sync// FFP_MERGE: opt_seek// FFP_MERGE: opt_duration// FFP_MERGE: opt_show_mode// FFP_MERGE: opt_input_file// FFP_MERGE: opt_codec// FFP_MERGE: dummy// FFP_MERGE: options// FFP_MERGE: show_usage// FFP_MERGE: show_help_defaultstatic int video_refresh_thread(void *arg){    FFPlayer *ffp = arg;    VideoState *is = ffp->is;    double remaining_time = 0.0;    while (!is->abort_request) {        if (remaining_time > 0.0)            av_usleep((int)(int64_t)(remaining_time * 1000000.0));        remaining_time = REFRESH_RATE;        if (is->show_mode != SHOW_MODE_NONE && (!is->paused || is->force_refresh))            video_refresh(ffp, &remaining_time);    }    return 0;}static int lockmgr(void **mtx, enum AVLockOp op){    switch (op) {    case AV_LOCK_CREATE:        *mtx = SDL_CreateMutex();        if (!*mtx) {            av_log(NULL, AV_LOG_FATAL, "SDL_CreateMutex(): %s\n", SDL_GetError());            return 1;        }        return 0;    case AV_LOCK_OBTAIN:        return !!SDL_LockMutex(*mtx);    case AV_LOCK_RELEASE:        return !!SDL_UnlockMutex(*mtx);    case AV_LOCK_DESTROY:        SDL_DestroyMutex(*mtx);        return 0;    }    return 1;}// FFP_MERGE: main/***************************************************************************** * end last line in ffplay.c ****************************************************************************/static bool g_ffmpeg_global_inited = false;inline static int log_level_av_to_ijk(int av_level){    int ijk_level = IJK_LOG_VERBOSE;    if      (av_level <= AV_LOG_PANIC)      ijk_level = IJK_LOG_FATAL;    else if (av_level <= AV_LOG_FATAL)      ijk_level = IJK_LOG_FATAL;    else if (av_level <= AV_LOG_ERROR)      ijk_level = IJK_LOG_ERROR;    else if (av_level <= AV_LOG_WARNING)    ijk_level = IJK_LOG_WARN;    else if (av_level <= AV_LOG_INFO)       ijk_level = IJK_LOG_INFO;    // AV_LOG_VERBOSE means detailed info    else if (av_level <= AV_LOG_VERBOSE)    ijk_level = IJK_LOG_INFO;    else if (av_level <= AV_LOG_DEBUG)      ijk_level = IJK_LOG_DEBUG;    else if (av_level <= AV_LOG_TRACE)      ijk_level = IJK_LOG_VERBOSE;    else                                    ijk_level = IJK_LOG_VERBOSE;    return ijk_level;}inline static int log_level_ijk_to_av(int ijk_level){    int av_level = IJK_LOG_VERBOSE;    if      (ijk_level >= IJK_LOG_SILENT)   av_level = AV_LOG_QUIET;    else if (ijk_level >= IJK_LOG_FATAL)    av_level = AV_LOG_FATAL;    else if (ijk_level >= IJK_LOG_ERROR)    av_level = AV_LOG_ERROR;    else if (ijk_level >= IJK_LOG_WARN)     av_level = AV_LOG_WARNING;    else if (ijk_level >= IJK_LOG_INFO)     av_level = AV_LOG_INFO;    // AV_LOG_VERBOSE means detailed info    else if (ijk_level >= IJK_LOG_DEBUG)    av_level = AV_LOG_DEBUG;    else if (ijk_level >= IJK_LOG_VERBOSE)  av_level = AV_LOG_TRACE;    else if (ijk_level >= IJK_LOG_DEFAULT)  av_level = AV_LOG_TRACE;    else if (ijk_level >= IJK_LOG_UNKNOWN)  av_level = AV_LOG_TRACE;    else                                    av_level = AV_LOG_TRACE;    return av_level;}static void ffp_log_callback_brief(void *ptr, int level, const char *fmt, va_list vl){    if (level > av_log_get_level())        return;    int ffplv __unused = log_level_av_to_ijk(level);    VLOG(ffplv, IJK_LOG_TAG, fmt, vl);}static void ffp_log_callback_report(void *ptr, int level, const char *fmt, va_list vl){    if (level > av_log_get_level())        return;    int ffplv __unused = log_level_av_to_ijk(level);    va_list vl2;    char line[1024];    static int print_prefix = 1;    va_copy(vl2, vl);    // av_log_default_callback(ptr, level, fmt, vl);    av_log_format_line(ptr, level, fmt, vl2, line, sizeof(line), &print_prefix);    va_end(vl2);    ALOG(ffplv, IJK_LOG_TAG, "%s", line);}int ijkav_register_all(void);void ffp_global_init(){    if (g_ffmpeg_global_inited)        return;    /* register all codecs, demux and protocols */    avcodec_register_all();#if CONFIG_AVDEVICE    avdevice_register_all();#endif#if CONFIG_AVFILTER    avfilter_register_all();#endif    av_register_all();    ijkav_register_all();    avformat_network_init();    av_lockmgr_register(lockmgr);    av_log_set_callback(ffp_log_callback_brief);    av_init_packet(&flush_pkt);    flush_pkt.data = (uint8_t *)&flush_pkt;    g_ffmpeg_global_inited = true;}void ffp_global_uninit(){    if (!g_ffmpeg_global_inited)        return;    av_lockmgr_register(NULL);    // FFP_MERGE: uninit_opts    avformat_network_deinit();    g_ffmpeg_global_inited = false;}void ffp_global_set_log_report(int use_report){    if (use_report) {        av_log_set_callback(ffp_log_callback_report);    } else {        av_log_set_callback(ffp_log_callback_brief);    }}void ffp_global_set_log_level(int log_level){    int av_level = log_level_ijk_to_av(log_level);    av_log_set_level(av_level);}static ijk_inject_callback s_inject_callback;int inject_callback(void *opaque, int type, void *data, size_t data_size){    if (s_inject_callback)        return s_inject_callback(opaque, type, data, data_size);    return 0;}void ffp_global_set_inject_callback(ijk_inject_callback cb){    s_inject_callback = cb;}void ffp_io_stat_register(void (*cb)(const char *url, int type, int bytes)){    // avijk_io_stat_register(cb);}void ffp_io_stat_complete_register(void (*cb)(const char *url,                                              int64_t read_bytes, int64_t total_size,                                              int64_t elpased_time, int64_t total_duration)){    // avijk_io_stat_complete_register(cb);}static const char *ffp_context_to_name(void *ptr){    return "FFPlayer";}static void *ffp_context_child_next(void *obj, void *prev){    return NULL;}static const AVClass *ffp_context_child_class_next(const AVClass *prev){    return NULL;}const AVClass ffp_context_class = {    .class_name       = "FFPlayer",    .item_name        = ffp_context_to_name,    .option           = ffp_context_options,    .version          = LIBAVUTIL_VERSION_INT,    .child_next       = ffp_context_child_next,    .child_class_next = ffp_context_child_class_next,};static const char *ijk_version_info(){    return IJKPLAYER_VERSION;}FFPlayer *ffp_create(){    av_log(NULL, AV_LOG_INFO, "av_version_info: %s\n", av_version_info());    av_log(NULL, AV_LOG_INFO, "ijk_version_info: %s\n", ijk_version_info());    FFPlayer* ffp = (FFPlayer*) av_mallocz(sizeof(FFPlayer));    if (!ffp)        return NULL;    msg_queue_init(&ffp->msg_queue);    ffp->af_mutex = SDL_CreateMutex();    ffp->vf_mutex = SDL_CreateMutex();    ffp_reset_internal(ffp);    ffp->av_class = &ffp_context_class;    ffp->meta = ijkmeta_create();    av_opt_set_defaults(ffp);    return ffp;}void ffp_destroy(FFPlayer *ffp){    if (!ffp)        return;    if (ffp->is) {        av_log(NULL, AV_LOG_WARNING, "ffp_destroy_ffplayer: force stream_close()");        stream_close(ffp);        ffp->is = NULL;    }    SDL_VoutFreeP(&ffp->vout);    SDL_AoutFreeP(&ffp->aout);    ffpipenode_free_p(&ffp->node_vdec);    ffpipeline_free_p(&ffp->pipeline);    ijkmeta_destroy_p(&ffp->meta);    ffp_reset_internal(ffp);    SDL_DestroyMutexP(&ffp->af_mutex);    SDL_DestroyMutexP(&ffp->vf_mutex);    msg_queue_destroy(&ffp->msg_queue);    av_free(ffp);}void ffp_destroy_p(FFPlayer **pffp){    if (!pffp)        return;    ffp_destroy(*pffp);    *pffp = NULL;}static AVDictionary **ffp_get_opt_dict(FFPlayer *ffp, int opt_category){    assert(ffp);    switch (opt_category) {        case FFP_OPT_CATEGORY_FORMAT:   return &ffp->format_opts;        case FFP_OPT_CATEGORY_CODEC:    return &ffp->codec_opts;        case FFP_OPT_CATEGORY_SWS:      return &ffp->sws_dict;        case FFP_OPT_CATEGORY_PLAYER:   return &ffp->player_opts;        case FFP_OPT_CATEGORY_SWR:      return &ffp->swr_opts;        default:            av_log(ffp, AV_LOG_ERROR, "unknown option category %d\n", opt_category);            return NULL;    }}static int app_func_event(AVApplicationContext *h, int message ,void *data, size_t size){    if (!h || !h->opaque || !data)        return 0;    FFPlayer *ffp = (FFPlayer *)h->opaque;    if (!ffp->inject_opaque)        return 0;    if (message == AVAPP_EVENT_IO_TRAFFIC && sizeof(AVAppIOTraffic) == size) {        AVAppIOTraffic *event = (AVAppIOTraffic *)(intptr_t)data;        if (event->bytes > 0) {            ffp->stat.byte_count += event->bytes;            SDL_SpeedSampler2Add(&ffp->stat.tcp_read_sampler, event->bytes);        }    } else if (message == AVAPP_EVENT_ASYNC_STATISTIC && sizeof(AVAppAsyncStatistic) == size) {        AVAppAsyncStatistic *statistic =  (AVAppAsyncStatistic *) (intptr_t)data;        ffp->stat.buf_backwards = statistic->buf_backwards;        ffp->stat.buf_forwards = statistic->buf_forwards;        ffp->stat.buf_capacity = statistic->buf_capacity;    }    return inject_callback(ffp->inject_opaque, message , data, size);}static int ijkio_app_func_event(IjkIOApplicationContext *h, int message ,void *data, size_t size){    if (!h || !h->opaque || !data)        return 0;    FFPlayer *ffp = (FFPlayer *)h->opaque;    if (!ffp->ijkio_inject_opaque)        return 0;    if (message == IJKIOAPP_EVENT_CACHE_STATISTIC && sizeof(IjkIOAppCacheStatistic) == size) {        IjkIOAppCacheStatistic *statistic =  (IjkIOAppCacheStatistic *) (intptr_t)data;        ffp->stat.cache_physical_pos      = statistic->cache_physical_pos;        ffp->stat.cache_buf_forwards      = statistic->cache_buf_forwards;        ffp->stat.cache_file_pos          = statistic->cache_file_pos;        ffp->stat.cache_count_bytes       = statistic->cache_count_bytes;    }    return inject_callback(ffp->inject_opaque, IJKIOAPP_EVENT_CACHE_STATISTIC, data, size);}void *ffp_set_ijkio_inject_opaque(FFPlayer *ffp, void *opaque){    if (!ffp)        return NULL;    void *prev_weak_thiz = ffp->ijkio_inject_opaque;    ffp->ijkio_inject_opaque = opaque;    ijkio_manager_destroyp(&ffp->ijkio_manager_ctx);    ijkio_manager_create(&ffp->ijkio_manager_ctx, ffp);    ijkio_manager_set_callback(ffp->ijkio_manager_ctx, ijkio_app_func_event);    ffp_set_option_int(ffp, FFP_OPT_CATEGORY_FORMAT, "ijkiomanager", (int64_t)(intptr_t)ffp->ijkio_manager_ctx);    return prev_weak_thiz;}void *ffp_set_inject_opaque(FFPlayer *ffp, void *opaque){    if (!ffp)        return NULL;    void *prev_weak_thiz = ffp->inject_opaque;    ffp->inject_opaque = opaque;    av_application_closep(&ffp->app_ctx);    av_application_open(&ffp->app_ctx, ffp);    ffp_set_option_int(ffp, FFP_OPT_CATEGORY_FORMAT, "ijkapplication", (int64_t)(intptr_t)ffp->app_ctx);    ffp->app_ctx->func_on_app_event = app_func_event;    return prev_weak_thiz;}void ffp_set_option(FFPlayer *ffp, int opt_category, const char *name, const char *value){    if (!ffp)        return;    AVDictionary **dict = ffp_get_opt_dict(ffp, opt_category);    av_dict_set(dict, name, value, 0);}void ffp_set_option_int(FFPlayer *ffp, int opt_category, const char *name, int64_t value){    if (!ffp)        return;    AVDictionary **dict = ffp_get_opt_dict(ffp, opt_category);    av_dict_set_int(dict, name, value, 0);}void ffp_set_overlay_format(FFPlayer *ffp, int chroma_fourcc){    switch (chroma_fourcc) {        case SDL_FCC__GLES2:        case SDL_FCC_I420:        case SDL_FCC_YV12:        case SDL_FCC_RV16:        case SDL_FCC_RV24:        case SDL_FCC_RV32:            ffp->overlay_format = chroma_fourcc;            break;#ifdef __APPLE__        case SDL_FCC_I444P10LE:            ffp->overlay_format = chroma_fourcc;            break;#endif        default:            av_log(ffp, AV_LOG_ERROR, "ffp_set_overlay_format: unknown chroma fourcc: %d\n", chroma_fourcc);            break;    }}int ffp_get_video_codec_info(FFPlayer *ffp, char **codec_info){    if (!codec_info)        return -1;    // FIXME: not thread-safe    if (ffp->video_codec_info) {        *codec_info = strdup(ffp->video_codec_info);    } else {        *codec_info = NULL;    }    return 0;}int ffp_get_audio_codec_info(FFPlayer *ffp, char **codec_info){    if (!codec_info)        return -1;    // FIXME: not thread-safe    if (ffp->audio_codec_info) {        *codec_info = strdup(ffp->audio_codec_info);    } else {        *codec_info = NULL;    }    return 0;}static void ffp_show_dict(FFPlayer *ffp, const char *tag, AVDictionary *dict){    AVDictionaryEntry *t = NULL;    while ((t = av_dict_get(dict, "", t, AV_DICT_IGNORE_SUFFIX))) {        av_log(ffp, AV_LOG_INFO, "%-*s: %-*s = %s\n", 12, tag, 28, t->key, t->value);    }}#define FFP_VERSION_MODULE_NAME_LENGTH 13static void ffp_show_version_str(FFPlayer *ffp, const char *module, const char *version){        av_log(ffp, AV_LOG_INFO, "%-*s: %s\n", FFP_VERSION_MODULE_NAME_LENGTH, module, version);}static void ffp_show_version_int(FFPlayer *ffp, const char *module, unsigned version){    av_log(ffp, AV_LOG_INFO, "%-*s: %u.%u.%u\n",           FFP_VERSION_MODULE_NAME_LENGTH, module,           (unsigned int)IJKVERSION_GET_MAJOR(version),           (unsigned int)IJKVERSION_GET_MINOR(version),           (unsigned int)IJKVERSION_GET_MICRO(version));}int ffp_prepare_async_l(FFPlayer *ffp, const char *file_name){    assert(ffp);    assert(!ffp->is);    assert(file_name);    if (av_stristart(file_name, "rtmp", NULL) ||        av_stristart(file_name, "rtsp", NULL)) {        // There is total different meaning for 'timeout' option in rtmp        av_log(ffp, AV_LOG_WARNING, "remove 'timeout' option for rtmp.\n");        av_dict_set(&ffp->format_opts, "timeout", NULL, 0);    }    /* there is a length limit in avformat */    if (strlen(file_name) + 1 > 1024) {        av_log(ffp, AV_LOG_ERROR, "%s too long url\n", __func__);        if (avio_find_protocol_name("ijklongurl:")) {            av_dict_set(&ffp->format_opts, "ijklongurl-url", file_name, 0);            file_name = "ijklongurl:";        }    }    av_log(NULL, AV_LOG_INFO, "===== versions =====\n");    ffp_show_version_str(ffp, "ijkplayer",      ijk_version_info());    ffp_show_version_str(ffp, "FFmpeg",         av_version_info());    ffp_show_version_int(ffp, "libavutil",      avutil_version());    ffp_show_version_int(ffp, "libavcodec",     avcodec_version());    ffp_show_version_int(ffp, "libavformat",    avformat_version());    ffp_show_version_int(ffp, "libswscale",     swscale_version());    ffp_show_version_int(ffp, "libswresample",  swresample_version());    av_log(NULL, AV_LOG_INFO, "===== options =====\n");    ffp_show_dict(ffp, "player-opts", ffp->player_opts);    ffp_show_dict(ffp, "format-opts", ffp->format_opts);    ffp_show_dict(ffp, "codec-opts ", ffp->codec_opts);    ffp_show_dict(ffp, "sws-opts   ", ffp->sws_dict);    ffp_show_dict(ffp, "swr-opts   ", ffp->swr_opts);    av_log(NULL, AV_LOG_INFO, "===================\n");    av_opt_set_dict(ffp, &ffp->player_opts);    if (!ffp->aout) {        ffp->aout = ffpipeline_open_audio_output(ffp->pipeline, ffp);        if (!ffp->aout)            return -1;    }#if CONFIG_AVFILTER    if (ffp->vfilter0) {        GROW_ARRAY(ffp->vfilters_list, ffp->nb_vfilters);        ffp->vfilters_list[ffp->nb_vfilters - 1] = ffp->vfilter0;    }#endif    VideoState *is = stream_open(ffp, file_name, NULL);    if (!is) {        av_log(NULL, AV_LOG_WARNING, "ffp_prepare_async_l: stream_open failed OOM");        return EIJK_OUT_OF_MEMORY;    }    ffp->is = is;    ffp->input_filename = av_strdup(file_name);    return 0;}int ffp_start_from_l(FFPlayer *ffp, long msec){    assert(ffp);    VideoState *is = ffp->is;    if (!is)        return EIJK_NULL_IS_PTR;    ffp->auto_resume = 1;    ffp_toggle_buffering(ffp, 1);    ffp_seek_to_l(ffp, msec);    return 0;}int ffp_start_l(FFPlayer *ffp){    assert(ffp);    VideoState *is = ffp->is;    if (!is)        return EIJK_NULL_IS_PTR;    toggle_pause(ffp, 0);    return 0;}int ffp_pause_l(FFPlayer *ffp){    assert(ffp);    VideoState *is = ffp->is;    if (!is)        return EIJK_NULL_IS_PTR;    toggle_pause(ffp, 1);    return 0;}int ffp_is_paused_l(FFPlayer *ffp){    assert(ffp);    VideoState *is = ffp->is;    if (!is)        return 1;    return is->paused;}int ffp_stop_l(FFPlayer *ffp){    assert(ffp);    VideoState *is = ffp->is;    if (is) {        is->abort_request = 1;        toggle_pause(ffp, 1);    }    msg_queue_abort(&ffp->msg_queue);    if (ffp->enable_accurate_seek && is && is->accurate_seek_mutex        && is->audio_accurate_seek_cond && is->video_accurate_seek_cond) {        SDL_LockMutex(is->accurate_seek_mutex);        is->audio_accurate_seek_req = 0;        is->video_accurate_seek_req = 0;        SDL_CondSignal(is->audio_accurate_seek_cond);        SDL_CondSignal(is->video_accurate_seek_cond);        SDL_UnlockMutex(is->accurate_seek_mutex);    }    return 0;}int ffp_wait_stop_l(FFPlayer *ffp){    assert(ffp);    if (ffp->is) {        ffp_stop_l(ffp);        stream_close(ffp);        ffp->is = NULL;    }    return 0;}int ffp_seek_to_l(FFPlayer *ffp, long msec){    assert(ffp);    VideoState *is = ffp->is;    if (!is)        return EIJK_NULL_IS_PTR;    int64_t seek_pos = milliseconds_to_fftime(msec);    int64_t start_time = is->ic->start_time;    if (start_time > 0 && start_time != AV_NOPTS_VALUE)        seek_pos += start_time;    // FIXME: 9 seek by bytes    // FIXME: 9 seek out of range    // FIXME: 9 seekable    av_log(ffp, AV_LOG_DEBUG, "stream_seek %"PRId64"(%d) + %"PRId64", \n", seek_pos, (int)msec, start_time);    stream_seek(is, seek_pos, 0, 0);    return 0;}long ffp_get_current_position_l(FFPlayer *ffp){    assert(ffp);    VideoState *is = ffp->is;    if (!is || !is->ic)        return 0;    int64_t start_time = is->ic->start_time;    int64_t start_diff = 0;    if (start_time > 0 && start_time != AV_NOPTS_VALUE)        start_diff = fftime_to_milliseconds(start_time);    int64_t pos = 0;    double pos_clock = get_master_clock(is);    if (isnan(pos_clock)) {        pos = fftime_to_milliseconds(is->seek_pos);    } else {        pos = pos_clock * 1000;    }    // If using REAL time and not ajusted, then return the real pos as calculated from the stream    // the use case for this is primarily when using a custom non-seekable data source that starts    // with a buffer that is NOT the start of the stream.  We want the get_current_position to    // return the time in the stream, and not the player's internal clock.    if (ffp->no_time_adjust) {        return (long)pos;    }    if (pos < 0 || pos < start_diff)        return 0;    int64_t adjust_pos = pos - start_diff;    return (long)adjust_pos;}long ffp_get_duration_l(FFPlayer *ffp){    assert(ffp);    VideoState *is = ffp->is;    if (!is || !is->ic)        return 0;    int64_t duration = fftime_to_milliseconds(is->ic->duration);    if (duration < 0)        return 0;    return (long)duration;}long ffp_get_playable_duration_l(FFPlayer *ffp){    assert(ffp);    if (!ffp)        return 0;    return (long)ffp->playable_duration_ms;}void ffp_set_loop(FFPlayer *ffp, int loop){    assert(ffp);    if (!ffp)        return;    ffp->loop = loop;}int ffp_get_loop(FFPlayer *ffp){    assert(ffp);    if (!ffp)        return 1;    return ffp->loop;}int ffp_packet_queue_init(PacketQueue *q){    return packet_queue_init(q);}void ffp_packet_queue_destroy(PacketQueue *q){    return packet_queue_destroy(q);}void ffp_packet_queue_abort(PacketQueue *q){    return packet_queue_abort(q);}void ffp_packet_queue_start(PacketQueue *q){    return packet_queue_start(q);}void ffp_packet_queue_flush(PacketQueue *q){    return packet_queue_flush(q);}int ffp_packet_queue_get(PacketQueue *q, AVPacket *pkt, int block, int *serial){    return packet_queue_get(q, pkt, block, serial);}int ffp_packet_queue_get_or_buffering(FFPlayer *ffp, PacketQueue *q, AVPacket *pkt, int *serial, int *finished){    return packet_queue_get_or_buffering(ffp, q, pkt, serial, finished);}int ffp_packet_queue_put(PacketQueue *q, AVPacket *pkt){    return packet_queue_put(q, pkt);}bool ffp_is_flush_packet(AVPacket *pkt){    if (!pkt)        return false;    return pkt->data == flush_pkt.data;}Frame *ffp_frame_queue_peek_writable(FrameQueue *f){    return frame_queue_peek_writable(f);}void ffp_frame_queue_push(FrameQueue *f){    return frame_queue_push(f);}int ffp_queue_picture(FFPlayer *ffp, AVFrame *src_frame, double pts, double duration, int64_t pos, int serial){    return queue_picture(ffp, src_frame, pts, duration, pos, serial);}int ffp_get_master_sync_type(VideoState *is){    return get_master_sync_type(is);}double ffp_get_master_clock(VideoState *is){    return get_master_clock(is);}void ffp_toggle_buffering_l(FFPlayer *ffp, int buffering_on){    if (!ffp->packet_buffering)        return;    VideoState *is = ffp->is;    if (buffering_on && !is->buffering_on) {        av_log(ffp, AV_LOG_DEBUG, "ffp_toggle_buffering_l: start\n");        is->buffering_on = 1;        stream_update_pause_l(ffp);        ffp_notify_msg1(ffp, FFP_MSG_BUFFERING_START);    } else if (!buffering_on && is->buffering_on){        av_log(ffp, AV_LOG_DEBUG, "ffp_toggle_buffering_l: end\n");        is->buffering_on = 0;        stream_update_pause_l(ffp);        ffp_notify_msg1(ffp, FFP_MSG_BUFFERING_END);    }}void ffp_toggle_buffering(FFPlayer *ffp, int start_buffering){    SDL_LockMutex(ffp->is->play_mutex);    ffp_toggle_buffering_l(ffp, start_buffering);    SDL_UnlockMutex(ffp->is->play_mutex);}void ffp_track_statistic_l(FFPlayer *ffp, AVStream *st, PacketQueue *q, FFTrackCacheStatistic *cache){    assert(cache);    if (q) {        cache->bytes   = q->size;        cache->packets = q->nb_packets;    }    if (q && st && st->time_base.den > 0 && st->time_base.num > 0) {        cache->duration = q->duration * av_q2d(st->time_base) * 1000;    }}void ffp_audio_statistic_l(FFPlayer *ffp){    VideoState *is = ffp->is;    ffp_track_statistic_l(ffp, is->audio_st, &is->audioq, &ffp->stat.audio_cache);}void ffp_video_statistic_l(FFPlayer *ffp){    VideoState *is = ffp->is;    ffp_track_statistic_l(ffp, is->video_st, &is->videoq, &ffp->stat.video_cache);}void ffp_statistic_l(FFPlayer *ffp){    ffp_audio_statistic_l(ffp);    ffp_video_statistic_l(ffp);}void ffp_check_buffering_l(FFPlayer *ffp){    VideoState *is            = ffp->is;    int hwm_in_ms             = ffp->dcc.current_high_water_mark_in_ms; // use fast water mark for first loading    int buf_size_percent      = -1;    int buf_time_percent      = -1;    int hwm_in_bytes          = ffp->dcc.high_water_mark_in_bytes;    int need_start_buffering  = 0;    int audio_time_base_valid = 0;    int video_time_base_valid = 0;    int64_t buf_time_position = -1;    if(is->audio_st)        audio_time_base_valid = is->audio_st->time_base.den > 0 && is->audio_st->time_base.num > 0;    if(is->video_st)        video_time_base_valid = is->video_st->time_base.den > 0 && is->video_st->time_base.num > 0;    if (hwm_in_ms > 0) {        int     cached_duration_in_ms = -1;        int64_t audio_cached_duration = -1;        int64_t video_cached_duration = -1;        if (is->audio_st && audio_time_base_valid) {            audio_cached_duration = ffp->stat.audio_cache.duration;#ifdef FFP_SHOW_DEMUX_CACHE            int audio_cached_percent = (int)av_rescale(audio_cached_duration, 1005, hwm_in_ms * 10);            av_log(ffp, AV_LOG_DEBUG, "audio cache=%%%d milli:(%d/%d) bytes:(%d/%d) packet:(%d/%d)\n", audio_cached_percent,                  (int)audio_cached_duration, hwm_in_ms,                  is->audioq.size, hwm_in_bytes,                  is->audioq.nb_packets, MIN_FRAMES);#endif        }        if (is->video_st && video_time_base_valid) {            video_cached_duration = ffp->stat.video_cache.duration;#ifdef FFP_SHOW_DEMUX_CACHE            int video_cached_percent = (int)av_rescale(video_cached_duration, 1005, hwm_in_ms * 10);            av_log(ffp, AV_LOG_DEBUG, "video cache=%%%d milli:(%d/%d) bytes:(%d/%d) packet:(%d/%d)\n", video_cached_percent,                  (int)video_cached_duration, hwm_in_ms,                  is->videoq.size, hwm_in_bytes,                  is->videoq.nb_packets, MIN_FRAMES);#endif        }        if (video_cached_duration > 0 && audio_cached_duration > 0) {            cached_duration_in_ms = (int)IJKMIN(video_cached_duration, audio_cached_duration);        } else if (video_cached_duration > 0) {            cached_duration_in_ms = (int)video_cached_duration;        } else if (audio_cached_duration > 0) {            cached_duration_in_ms = (int)audio_cached_duration;        }        if (cached_duration_in_ms >= 0) {            buf_time_position = ffp_get_current_position_l(ffp) + cached_duration_in_ms;            ffp->playable_duration_ms = buf_time_position;            buf_time_percent = (int)av_rescale(cached_duration_in_ms, 1005, hwm_in_ms * 10);#ifdef FFP_SHOW_DEMUX_CACHE            av_log(ffp, AV_LOG_DEBUG, "time cache=%%%d (%d/%d)\n", buf_time_percent, cached_duration_in_ms, hwm_in_ms);#endif#ifdef FFP_NOTIFY_BUF_TIME            ffp_notify_msg3(ffp, FFP_MSG_BUFFERING_TIME_UPDATE, cached_duration_in_ms, hwm_in_ms);#endif        }    }    int cached_size = is->audioq.size + is->videoq.size;    if (hwm_in_bytes > 0) {        buf_size_percent = (int)av_rescale(cached_size, 1005, hwm_in_bytes * 10);#ifdef FFP_SHOW_DEMUX_CACHE        av_log(ffp, AV_LOG_DEBUG, "size cache=%%%d (%d/%d)\n", buf_size_percent, cached_size, hwm_in_bytes);#endif#ifdef FFP_NOTIFY_BUF_BYTES        ffp_notify_msg3(ffp, FFP_MSG_BUFFERING_BYTES_UPDATE, cached_size, hwm_in_bytes);#endif    }    int buf_percent = -1;    if (buf_time_percent >= 0) {        // alwas depend on cache duration if valid        if (buf_time_percent >= 100)            need_start_buffering = 1;        buf_percent = buf_time_percent;    } else {        if (buf_size_percent >= 100)            need_start_buffering = 1;        buf_percent = buf_size_percent;    }    if (buf_time_percent >= 0 && buf_size_percent >= 0) {        buf_percent = FFMIN(buf_time_percent, buf_size_percent);    }    if (buf_percent) {#ifdef FFP_SHOW_BUF_POS        av_log(ffp, AV_LOG_DEBUG, "buf pos=%"PRId64", %%%d\n", buf_time_position, buf_percent);#endif        ffp_notify_msg3(ffp, FFP_MSG_BUFFERING_UPDATE, (int)buf_time_position, buf_percent);    }    if (need_start_buffering) {        if (hwm_in_ms < ffp->dcc.next_high_water_mark_in_ms) {            hwm_in_ms = ffp->dcc.next_high_water_mark_in_ms;        } else {            hwm_in_ms *= 2;        }        if (hwm_in_ms > ffp->dcc.last_high_water_mark_in_ms)            hwm_in_ms = ffp->dcc.last_high_water_mark_in_ms;        ffp->dcc.current_high_water_mark_in_ms = hwm_in_ms;        if (is->buffer_indicator_queue && is->buffer_indicator_queue->nb_packets > 0) {            if (   (is->audioq.nb_packets > MIN_MIN_FRAMES || is->audio_stream < 0 || is->audioq.abort_request)                && (is->videoq.nb_packets > MIN_MIN_FRAMES || is->video_stream < 0 || is->videoq.abort_request)) {                ffp_toggle_buffering(ffp, 0);            }        }    }}int ffp_video_thread(FFPlayer *ffp){    return ffplay_video_thread(ffp);}void ffp_set_video_codec_info(FFPlayer *ffp, const char *module, const char *codec){    av_freep(&ffp->video_codec_info);    ffp->video_codec_info = av_asprintf("%s, %s", module ? module : "", codec ? codec : "");    av_log(ffp, AV_LOG_INFO, "VideoCodec: %s\n", ffp->video_codec_info);}void ffp_set_audio_codec_info(FFPlayer *ffp, const char *module, const char *codec){    av_freep(&ffp->audio_codec_info);    ffp->audio_codec_info = av_asprintf("%s, %s", module ? module : "", codec ? codec : "");    av_log(ffp, AV_LOG_INFO, "AudioCodec: %s\n", ffp->audio_codec_info);}void ffp_set_subtitle_codec_info(FFPlayer *ffp, const char *module, const char *codec){    av_freep(&ffp->subtitle_codec_info);    ffp->subtitle_codec_info = av_asprintf("%s, %s", module ? module : "", codec ? codec : "");    av_log(ffp, AV_LOG_INFO, "SubtitleCodec: %s\n", ffp->subtitle_codec_info);}void ffp_set_playback_rate(FFPlayer *ffp, float rate){    if (!ffp)        return;    ffp->pf_playback_rate = rate;    ffp->pf_playback_rate_changed = 1;}void ffp_set_playback_volume(FFPlayer *ffp, float volume){    if (!ffp)        return;    ffp->pf_playback_volume = volume;    ffp->pf_playback_volume_changed = 1;}int ffp_get_video_rotate_degrees(FFPlayer *ffp){    VideoState *is = ffp->is;    if (!is)        return 0;    int theta  = abs((int)((int64_t)round(fabs(get_rotation(is->video_st))) % 360));    switch (theta) {        case 0:        case 90:        case 180:        case 270:            break;        case 360:            theta = 0;            break;        default:            ALOGW("Unknown rotate degress: %d\n", theta);            theta = 0;            break;    }    return theta;}int ffp_set_stream_selected(FFPlayer *ffp, int stream, int selected){    VideoState        *is = ffp->is;    AVFormatContext   *ic = NULL;    AVCodecParameters *codecpar = NULL;    if (!is)        return -1;    ic = is->ic;    if (!ic)        return -1;    if (stream < 0 || stream >= ic->nb_streams) {        av_log(ffp, AV_LOG_ERROR, "invalid stream index %d >= stream number (%d)\n", stream, ic->nb_streams);        return -1;    }    codecpar = ic->streams[stream]->codecpar;    if (selected) {        switch (codecpar->codec_type) {            case AVMEDIA_TYPE_VIDEO:                if (stream != is->video_stream && is->video_stream >= 0)                    stream_component_close(ffp, is->video_stream);                break;            case AVMEDIA_TYPE_AUDIO:                if (stream != is->audio_stream && is->audio_stream >= 0)                    stream_component_close(ffp, is->audio_stream);                break;            case AVMEDIA_TYPE_SUBTITLE:                if (stream != is->subtitle_stream && is->subtitle_stream >= 0)                    stream_component_close(ffp, is->subtitle_stream);                break;            default:                av_log(ffp, AV_LOG_ERROR, "select invalid stream %d of video type %d\n", stream, codecpar->codec_type);                return -1;        }        return stream_component_open(ffp, stream);    } else {        switch (codecpar->codec_type) {            case AVMEDIA_TYPE_VIDEO:                if (stream == is->video_stream)                    stream_component_close(ffp, is->video_stream);                break;            case AVMEDIA_TYPE_AUDIO:                if (stream == is->audio_stream)                    stream_component_close(ffp, is->audio_stream);                break;            case AVMEDIA_TYPE_SUBTITLE:                if (stream == is->subtitle_stream)                    stream_component_close(ffp, is->subtitle_stream);                break;            default:                av_log(ffp, AV_LOG_ERROR, "select invalid stream %d of audio type %d\n", stream, codecpar->codec_type);                return -1;        }        return 0;    }}float ffp_get_property_float(FFPlayer *ffp, int id, float default_value){    switch (id) {        case FFP_PROP_FLOAT_VIDEO_DECODE_FRAMES_PER_SECOND:            return ffp ? ffp->stat.vdps : default_value;        case FFP_PROP_FLOAT_VIDEO_OUTPUT_FRAMES_PER_SECOND:            return ffp ? ffp->stat.vfps : default_value;        case FFP_PROP_FLOAT_PLAYBACK_RATE:            return ffp ? ffp->pf_playback_rate : default_value;        case FFP_PROP_FLOAT_AVDELAY:            return ffp ? ffp->stat.avdelay : default_value;        case FFP_PROP_FLOAT_AVDIFF:            return ffp ? ffp->stat.avdiff : default_value;        case FFP_PROP_FLOAT_PLAYBACK_VOLUME:            return ffp ? ffp->pf_playback_volume : default_value;        default:            return default_value;    }}void ffp_set_property_float(FFPlayer *ffp, int id, float value){    switch (id) {        case FFP_PROP_FLOAT_PLAYBACK_RATE:            ffp_set_playback_rate(ffp, value);            break;        case FFP_PROP_FLOAT_PLAYBACK_VOLUME:            ffp_set_playback_volume(ffp, value);            break;        default:            return;    }}int64_t ffp_get_property_int64(FFPlayer *ffp, int id, int64_t default_value){    switch (id) {        case FFP_PROP_INT64_SELECTED_VIDEO_STREAM:            if (!ffp || !ffp->is)                return default_value;            return ffp->is->video_stream;        case FFP_PROP_INT64_SELECTED_AUDIO_STREAM:            if (!ffp || !ffp->is)                return default_value;            return ffp->is->audio_stream;        case FFP_PROP_INT64_SELECTED_TIMEDTEXT_STREAM:            if (!ffp || !ffp->is)                return default_value;            return ffp->is->subtitle_stream;        case FFP_PROP_INT64_VIDEO_DECODER:            if (!ffp)                return default_value;            return ffp->stat.vdec_type;        case FFP_PROP_INT64_AUDIO_DECODER:            return FFP_PROPV_DECODER_AVCODEC;        case FFP_PROP_INT64_VIDEO_CACHED_DURATION:            if (!ffp)                return default_value;            return ffp->stat.video_cache.duration;        case FFP_PROP_INT64_AUDIO_CACHED_DURATION:            if (!ffp)                return default_value;            return ffp->stat.audio_cache.duration;        case FFP_PROP_INT64_VIDEO_CACHED_BYTES:            if (!ffp)                return default_value;            return ffp->stat.video_cache.bytes;        case FFP_PROP_INT64_AUDIO_CACHED_BYTES:            if (!ffp)                return default_value;            return ffp->stat.audio_cache.bytes;        case FFP_PROP_INT64_VIDEO_CACHED_PACKETS:            if (!ffp)                return default_value;            return ffp->stat.video_cache.packets;        case FFP_PROP_INT64_AUDIO_CACHED_PACKETS:            if (!ffp)                return default_value;            return ffp->stat.audio_cache.packets;        case FFP_PROP_INT64_BIT_RATE:            return ffp ? ffp->stat.bit_rate : default_value;        case FFP_PROP_INT64_TCP_SPEED:            return ffp ? SDL_SpeedSampler2GetSpeed(&ffp->stat.tcp_read_sampler) : default_value;        case FFP_PROP_INT64_ASYNC_STATISTIC_BUF_BACKWARDS:            if (!ffp)                return default_value;            return ffp->stat.buf_backwards;        case FFP_PROP_INT64_ASYNC_STATISTIC_BUF_FORWARDS:            if (!ffp)                return default_value;            return ffp->stat.buf_forwards;        case FFP_PROP_INT64_ASYNC_STATISTIC_BUF_CAPACITY:            if (!ffp)                return default_value;            return ffp->stat.buf_capacity;        case FFP_PROP_INT64_LATEST_SEEK_LOAD_DURATION:            return ffp ? ffp->stat.latest_seek_load_duration : default_value;        case FFP_PROP_INT64_TRAFFIC_STATISTIC_BYTE_COUNT:            return ffp ? ffp->stat.byte_count : default_value;        case FFP_PROP_INT64_CACHE_STATISTIC_PHYSICAL_POS:            if (!ffp)                return default_value;            return ffp->stat.cache_physical_pos;       case FFP_PROP_INT64_CACHE_STATISTIC_BUF_FORWARDS:            if (!ffp)                return default_value;            return ffp->stat.cache_buf_forwards;       case FFP_PROP_INT64_CACHE_STATISTIC_FILE_POS:            if (!ffp)                return default_value;            return ffp->stat.cache_file_pos;       case FFP_PROP_INT64_CACHE_STATISTIC_COUNT_BYTES:            if (!ffp)                return default_value;            return ffp->stat.cache_count_bytes;        default:            return default_value;    }}void ffp_set_property_int64(FFPlayer *ffp, int id, int64_t value){    switch (id) {        // case FFP_PROP_INT64_SELECTED_VIDEO_STREAM:        // case FFP_PROP_INT64_SELECTED_AUDIO_STREAM:        default:            break;    }}IjkMediaMeta *ffp_get_meta_l(FFPlayer *ffp){    if (!ffp)        return NULL;    return ffp->meta;}


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