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

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 

#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; inb_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