如何利用ffpmeg封装h264裸流成Mpg2容器？

BeyondCode

我上ffpmeg的doc目录下阅读了muxing.c，还是不会容器封装，求高手指点下方法!
原始数据为h264裸流视频数据。

T-Bagwell

1. 
   
2.     ret = avformat_write_header(oc, NULL);
   
3.     if (ret < 0) {
   
4.         fprintf(stderr, "Error occurred when opening output file: %s\n",
   
5.                 av_err2str(ret));
   
6.         return 1;
   
7.     }   
   
8. 
   
9.     if (frame)
   
10.         frame->pts = 0;
    
11.     for (;;) {
    
12.         /* Compute current audio and video time. */
    
13.         audio_time = audio_st ? audio_st->pts.val * av_q2d(audio_st->time_base) : 0.0;
    
14.         video_time = video_st ? video_st->pts.val * av_q2d(video_st->time_base) : 0.0;
    
15. 
    
16.         if ((!audio_st || audio_time >= STREAM_DURATION) &&
    
17.             (!video_st || video_time >= STREAM_DURATION))
    
18.             break;
    
19. 
    
20.         /* write interleaved audio and video frames */
    
21.         if (!video_st || (video_st && audio_st && audio_time < video_time)) {
    
22.             write_audio_frame(oc, audio_st);
    
23.         } else {
    
24.             write_video_frame(oc, video_st);
    
25.             frame->pts += av_rescale_q(1, video_st->codec->time_base, video_st->time_base);
    
26.         }   
    
27.     }   
    
28. 
    
29.     /* Write the trailer, if any. The trailer must be written before you
    
30.      * close the CodecContexts open when you wrote the header; otherwise
    
31.      * av_write_trailer() may try to use memory that was freed on
    
32.      * av_codec_close(). */
    
33.     av_write_trailer(oc);
    
34. 
    

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其实主要流程还是在这里