libavformat/movenc.c:2312: error: Integer Overflow L2
  ([0, +oo] - 1):unsigned32 by call to `ff_mov_close_hinting`.

libavformat/movenc.c:2308:9: Call
2306. 
2307.     if (mov->chapter_track)
2308.         av_freep(&mov->tracks[mov->chapter_track].enc);
              ^
2309. 
2310.     for (i=0; i<mov->nb_streams; i++) {

libavutil/mem.c:151:5: Assignment
  149.     void **ptr= (void**)arg;
  150.     av_free(*ptr);
  151.     *ptr = NULL;
           ^
  152. }
  153. 

libavformat/movenc.c:2312:13: Call
2310.     for (i=0; i<mov->nb_streams; i++) {
2311.         if (mov->tracks[i].tag == MKTAG('r','t','p',' '))
2312.             ff_mov_close_hinting(&mov->tracks[i]);
                  ^
2313.         av_freep(&mov->tracks[i].cluster);
2314. 

libavformat/movenchint.c:442:1: Parameter `track->rtp_ctx->nb_programs`
  440. }
  441. 
  442. void ff_mov_close_hinting(MOVTrack *track) {
       ^
  443.     AVFormatContext* rtp_ctx = track->rtp_ctx;
  444.     uint8_t *ptr;

libavformat/movenchint.c:455:5: Call
  453.         av_free(ptr);
  454.     }
  455.     avformat_free_context(rtp_ctx);
           ^
  456. }
  457. 

libavformat/utils.c:2548:1: <LHS trace>
2546. }
2547. 
2548. void avformat_free_context(AVFormatContext *s)
      ^
2549. {
2550.     int i;

libavformat/utils.c:2548:1: Parameter `s->nb_programs`
    2546. }
    2547. 
    2548. void avformat_free_context(AVFormatContext *s)
          ^
    2549. {
    2550.     int i;

libavformat/utils.c:2573:9: Binary operation: ([0, +oo] - 1):unsigned32 by call to `ff_mov_close_hinting` 
    2571.         av_free(st);
    2572.     }
    2573.     for(i=s->nb_programs-1; i>=0; i--) {
                  ^
    2574.         av_dict_free(&s->programs[i]->metadata);
    2575.         av_freep(&s->programs[i]->stream_index);

void avformat_free_context(AVFormatContext *s)
{
    int i;
    AVStream *st;
    av_opt_free(s);
    if (s->iformat && s->iformat->priv_class)
        av_opt_free(s->priv_data);
    for(i=0;i<s->nb_streams;i++) {
        st = s->streams[i];
        if (st->parser) {
            av_parser_close(st->parser);
            av_free_packet(&st->cur_pkt);
        }
        av_dict_free(&st->metadata);
        av_free(st->index_entries);
        av_free(st->codec->extradata);
        av_free(st->codec->subtitle_header);
        av_free(st->codec);
        av_free(st->priv_data);
        av_free(st->info);
        av_free(st);
    }
    for(i=s->nb_programs-1; i>=0; i--) {
        av_dict_free(&s->programs[i]->metadata);
        av_freep(&s->programs[i]->stream_index);
        av_freep(&s->programs[i]);
    }
    av_freep(&s->programs);
    av_freep(&s->priv_data);
    while(s->nb_chapters--) {
        av_dict_free(&s->chapters[s->nb_chapters]->metadata);
        av_free(s->chapters[s->nb_chapters]);
    }
    av_freep(&s->chapters);
    av_dict_free(&s->metadata);
    av_freep(&s->streams);
    av_free(s);
}
['static int mov_write_trailer(AVFormatContext *s)\n{\n    MOVMuxContext *mov = s->priv_data;\n    AVIOContext *pb = s->pb;\n    int res = 0;\n    int i;\n    int64_t moov_pos = avio_tell(pb);\n    if (mov->mdat_size+8 <= UINT32_MAX) {\n        avio_seek(pb, mov->mdat_pos, SEEK_SET);\n        avio_wb32(pb, mov->mdat_size+8);\n    } else {\n        avio_seek(pb, mov->mdat_pos - 8, SEEK_SET);\n        avio_wb32(pb, 1);\n        ffio_wfourcc(pb, "mdat");\n        avio_wb64(pb, mov->mdat_size+16);\n    }\n    avio_seek(pb, moov_pos, SEEK_SET);\n    mov_write_moov_tag(pb, mov, s);\n    if (mov->chapter_track)\n        av_freep(&mov->tracks[mov->chapter_track].enc);\n    for (i=0; i<mov->nb_streams; i++) {\n        if (mov->tracks[i].tag == MKTAG(\'r\',\'t\',\'p\',\' \'))\n            ff_mov_close_hinting(&mov->tracks[i]);\n        av_freep(&mov->tracks[i].cluster);\n        if(mov->tracks[i].vosLen) av_free(mov->tracks[i].vosData);\n    }\n    avio_flush(pb);\n    av_freep(&mov->tracks);\n    return res;\n}', 'void av_freep(void *arg)\n{\n    void **ptr= (void**)arg;\n    av_free(*ptr);\n    *ptr = NULL;\n}', 'void ff_mov_close_hinting(MOVTrack *track) {\n    AVFormatContext* rtp_ctx = track->rtp_ctx;\n    uint8_t *ptr;\n    av_freep(&track->enc);\n    sample_queue_free(&track->sample_queue);\n    if (!rtp_ctx)\n        return;\n    if (rtp_ctx->pb) {\n        av_write_trailer(rtp_ctx);\n        avio_close_dyn_buf(rtp_ctx->pb, &ptr);\n        av_free(ptr);\n    }\n    avformat_free_context(rtp_ctx);\n}', 'void avformat_free_context(AVFormatContext *s)\n{\n    int i;\n    AVStream *st;\n    av_opt_free(s);\n    if (s->iformat && s->iformat->priv_class)\n        av_opt_free(s->priv_data);\n    for(i=0;i<s->nb_streams;i++) {\n        st = s->streams[i];\n        if (st->parser) {\n            av_parser_close(st->parser);\n            av_free_packet(&st->cur_pkt);\n        }\n        av_dict_free(&st->metadata);\n        av_free(st->index_entries);\n        av_free(st->codec->extradata);\n        av_free(st->codec->subtitle_header);\n        av_free(st->codec);\n        av_free(st->priv_data);\n        av_free(st->info);\n        av_free(st);\n    }\n    for(i=s->nb_programs-1; i>=0; i--) {\n        av_dict_free(&s->programs[i]->metadata);\n        av_freep(&s->programs[i]->stream_index);\n        av_freep(&s->programs[i]);\n    }\n    av_freep(&s->programs);\n    av_freep(&s->priv_data);\n    while(s->nb_chapters--) {\n        av_dict_free(&s->chapters[s->nb_chapters]->metadata);\n        av_free(s->chapters[s->nb_chapters]);\n    }\n    av_freep(&s->chapters);\n    av_dict_free(&s->metadata);\n    av_freep(&s->streams);\n    av_free(s);\n}']