gistfile1.txt

  //set teh timestamp to 0 before we start
  pReadFrame->pts = 0;

  while (av_read_frame(pReadFormatCtx, &readPkt) >= 0) {
    AVPacket origPkt = readPkt;
    do {
      lastPTSValue = pReadFrame->pts;
      //the decode packet blows away the last values
      ret = decode_packet(&gotFrame, 0);
      fprintf(stdout,"pts/dts read: %lld\n",pReadFrame->pts);
      pReadFrame->pts = lastPTSValue;
      if (ret < 0)
        break;

      fprintf(stdout,"pts/dts read: %lld\n",pReadFrame->pts);
      //what type of frame was this
      if ( pWriteVideo_st && readPkt.stream_index == readVideoStreamIdx ) {
        write_video_frame(pWriteFormatCtx, pWriteVideo_st);
        pReadFrame->pts += av_rescale_q(1, pWriteVideo_st->codec->time_base, pWriteVideo_st->time_base);
      } else if (pWriteAudio_st && readPkt.stream_index == readAudioStreamIdx) {
        write_audio_frame(pWriteFormatCtx,pWriteAudio_st);
      } else {
        fprintf(stderr,"Something bad happened in decode");
        return -1;
      }