static int mov_read_close(AVFormatContext *s)
{
    MOVContext *mov = s->priv_data;
    int i, j;

    for (i = 0; i < s->nb_streams; i++) {
        AVStream *st = s->streams[i];
        MOVStreamContext *sc = st->priv_data;

        av_freep(&sc->ctts_data);
        for (j = 0; j < sc->drefs_count; j++) {
            av_freep(&sc->drefs[j].path);
            av_freep(&sc->drefs[j].dir);
        }
        av_freep(&sc->drefs);
        if (sc->pb && sc->pb != s->pb)
            avio_close(sc->pb);
        sc->pb = NULL;
        av_freep(&sc->chunk_offsets);
        av_freep(&sc->keyframes);
        av_freep(&sc->sample_sizes);
        av_freep(&sc->stps_data);
        av_freep(&sc->stsc_data);
        av_freep(&sc->stts_data);
    }

    if (mov->dv_demux) {
        for (i = 0; i < mov->dv_fctx->nb_streams; i++) {
            av_freep(&mov->dv_fctx->streams[i]->codec);
            av_freep(&mov->dv_fctx->streams[i]);
        }
        av_freep(&mov->dv_fctx);
        av_freep(&mov->dv_demux);
    }

    av_freep(&mov->trex_data);

    return 0;
}
static int mov_read_close(AVFormatContext *s)
{
    MOVContext *mov = s->priv_data;
    int i, j;

    for (i = 0; i < s->nb_streams; i++) {
        AVStream *st = s->streams[i];
        MOVStreamContext *sc = st->priv_data;

        av_freep(&sc->ctts_data);
        for (j = 0; j < sc->drefs_count; j++) {
            av_freep(&sc->drefs[j].path);
            av_freep(&sc->drefs[j].dir);
        }
        av_freep(&sc->drefs);
        if (sc->pb && sc->pb != s->pb)
            avio_close(sc->pb);
        sc->pb = NULL;
        av_freep(&sc->chunk_offsets);
        av_freep(&sc->keyframes);
        av_freep(&sc->sample_sizes);
        av_freep(&sc->stps_data);
        av_freep(&sc->stsc_data);
        av_freep(&sc->stts_data);
    }

    if (mov->dv_demux) {
        for (i = 0; i < mov->dv_fctx->nb_streams; i++) {
            av_freep(&mov->dv_fctx->streams[i]->codec);
            av_freep(&mov->dv_fctx->streams[i]);
        }
        av_freep(&mov->dv_fctx);
        av_freep(&mov->dv_demux);
    }

    av_freep(&mov->trex_data);

    return 0;
}