func: static av_cold int mpeg4video_parse_init(AVCodecParserContext *s)
  
  {
  
      ParseContext1 *pc = s->priv_data;
  
  
  
      pc->enc = av_mallocz(sizeof(MpegEncContext));
  
      if (!pc->enc)
  
          return -1;
  
      pc->first_picture = 1;
  
  
      return 0;
  
  }