/usr/bin/ld: warning: libswresample.so.1, needed by /usr/lib/gcc/i686-linux-gnu/4.9/../../../../lib/

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利用FFMPEG简单分离音视频数据流

测试源码来源于:http://my.oschina.net/u/2336532/blog/399058

#include <stdio.h>#include "libavformat/avformat.h" static const char *media_file = "11.mp4";int main(void){    int i, vid_idx, aud_idx;    FILE *fp_vides = NULL, *fp_audes = NULL;    AVFormatContext *pFormatCtx = NULL;    AVPacket pkt;     av_register_all();    avformat_open_input(&pFormatCtx, media_file, NULL, NULL);    avformat_find_stream_info(pFormatCtx, NULL);     fp_vides = fopen("vid_es.dat", "wb");    fp_audes = fopen("aud_es.dat", "wb");    // 1, handle stream info    for (i=0; i<pFormatCtx->nb_streams; i++)    {        if (pFormatCtx->streams[i]->codec->codec_type ==AVMEDIA_TYPE_VIDEO)            vid_idx = i;        else if (pFormatCtx->streams[i]->codec->codec_type ==AVMEDIA_TYPE_AUDIO)            aud_idx = i;        else            ;//such as subtitile    }    while (av_read_frame(pFormatCtx, &pkt) >= 0)    {        // 2, handle pkt data        if (pkt.stream_index == vid_idx)            fwrite(pkt.data, pkt.size, 1, fp_vides);        else if (pkt.stream_index == aud_idx)            fwrite(pkt.data, pkt.size, 1, fp_audes);        else            ;// such as subtitile        av_free_packet(&pkt);    }    fclose(fp_vides);    fclose(fp_audes);    avformat_close_input(&pFormatCtx);    return 0;}

解决方案:

gcc -o ffmpegtest acc.c -lavformat -lavcodec -lavutil -lz -lm -lswresample

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