av_free(s->streams[i]);
av_freep(&s->streams[i]);
static int mov_read_close(AVFormatContext *s){    int i;    MOVContext *mov = s->priv_data;    for(i=0; i<mov->total_streams; i++)        mov_free_stream_context(mov->streams[i]);    for(i=0; i<s->nb_streams; i++)        av_free(s->streams[i]);    return 0;}