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来源：互联网发布：java汉字转拼音首字母编辑：程序博客网时间：2024/06/17 00:53
    AVFrame *pFrame,*pFrameYUV;    pFrame = avcodec_alloc_frame();    pFrameYUV = avcodec_alloc_frame();    uint8_t *out_buffer;    out_buffer = new uint8_t[avpicture_get_size(PIX_FMT_YUV420P, pCodecCtx->width, pCodecCtx->height)];    avpicture_fill((AVPicture *)pFrameYUV, out_buffer, PIX_FMT_YUV420P, pCodecCtx->width, pCodecCtx->height);//------------SDL----------------    if(SDL_Init(SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER)) {          printf( "Could not initialize SDL - %s\n", SDL_GetError());         return -1;    }     SDL_Surface *screen;     screen = SDL_SetVideoMode(pCodecCtx->width, pCodecCtx->height, 0, 0);    if(!screen) {          printf("SDL: could not set video mode - exiting\n");          return -1;    }    SDL_Overlay *bmp;     bmp = SDL_CreateYUVOverlay(pCodecCtx->width, pCodecCtx->height,SDL_YV12_OVERLAY, screen);     SDL_Rect rect;//---------------    int ret, got_picture;    int y_size = pCodecCtx->width * pCodecCtx->height;    AVPacket *packet=(AVPacket *)av_malloc(sizeof(AVPacket));> 引用块内容
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