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indeo5: fix null pointer crash with ref_mb 

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2011-12-28 19:50:29 +01:00
parent 8e09482e4d
commit 4b35ee0b7c
1 changed files with 1 additions and 1 deletions
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2
libavcodec/ivi_common.c
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@ -506,7 +506,7 @@ void ff_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);