Fixes NULL pointer dereferene in bipbop234.ts_s20131.
---
libavcodec/h264_refs.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/libavcodec/h264_refs.c b/libavcodec/h264_refs.c
index 755f115..0b88587 100644
--- a/libavcodec/h264_refs.c
+++ b/libavcodec/h264_refs.c
@@ -372,6 +372,12 @@ static Picture * find_short(H264Context *h, int frame_num,
int *idx){
for(i=0; i<h->short_ref_count; i++){
Picture *pic= h->short_ref[i];
+ if (!pic) {
+ av_log(h->s.avctx, AV_LOG_WARNING, "invalid short ref count %d "
+ "without frame at short_ref[%d]\n", h->short_ref_count, i);
+ h->short_ref_count = i;
+ return NULL;
+ }
if(s->avctx->debug&FF_DEBUG_MMCO)
av_log(h->s.avctx, AV_LOG_DEBUG, "%d %d %p\n", i, pic->frame_num,
pic);
if(pic->frame_num == frame_num) {
--
1.7.12.4
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