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indeo: check for reference when inheriting mvs 

The same is done already for qdelta.

Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
This commit is contained in:
Luca Barbato 2013-06-30 10:40:37 +02:00
parent 1194a41080
commit b36e1893ef
1 changed files with 1 additions and 1 deletions
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2
libavcodec/ivi_common.c
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@ -603,7 +603,7 @@ static int ivi_process_empty_tile(AVCodecContext *avctx, IVIBandDesc *band,
if (band->inherit_qdelta && ref_mb)
mb->q_delta = ref_mb->q_delta;
if (band->inherit_mv) {
if (band->inherit_mv && ref_mb) {
/* motion vector inheritance */
if (mv_scale) {
mb->mv_x = ivi_scale_mv(ref_mb->mv_x, mv_scale);