avcodec/vc1: fix check for missing CBPTAB

CBPTAB must be present in (non skipped) P and B pictures.

Signed-off-by: Jerome Borsboom <jerome.borsboom@carpalis.nl>
This commit is contained in:
Jerome Borsboom 2018-06-20 15:17:34 +02:00 committed by Carl Eugen Hoyos
parent 975a1a81b2
commit efde2a70ff

View File

@ -1088,7 +1088,9 @@ static int vc1_decode_frame(AVCodecContext *avctx, void *data,
av_log(v->s.avctx, AV_LOG_ERROR, "end mb y %d %d invalid\n", s->end_mb_y, s->start_mb_y);
continue;
}
if (!v->p_frame_skipped && s->pict_type != AV_PICTURE_TYPE_I && !v->cbpcy_vlc) {
if (((s->pict_type == AV_PICTURE_TYPE_P && !v->p_frame_skipped) ||
(s->pict_type == AV_PICTURE_TYPE_B && !v->bi_type)) &&
!v->cbpcy_vlc) {
av_log(v->s.avctx, AV_LOG_ERROR, "missing cbpcy_vlc\n");
continue;
}