H.264: fix grayscale decoding with explicit wpred

Originally committed as revision 26306 to svn://svn.ffmpeg.org/ffmpeg/trunk

H.264: fix grayscale decoding with explicit wpred
Originally committed as revision 26306 to svn://svn.ffmpeg.org/ffmpeg/trunk
09fffe9b · Jason Garrett-Glaser · 74093bb5 · 09fffe9b
Commit 09fffe9b authored Jan 10, 2011 by Jason Garrett-Glaser
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h264.c libavcodec/h264.c +2 -1

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--- a/libavcodec/h264.c
+++ b/libavcodec/h264.c
@@ -1371,7 +1371,8 @@ static int pred_weight_table(H264Context *h){
    h->use_weight= 0;
    h->use_weight_chroma= 0;
    h->luma_log2_weight_denom= get_ue_golomb(&s->gb);
-    h->chroma_log2_weight_denom= get_ue_golomb(&s->gb);
+    if(CHROMA)
+        h->chroma_log2_weight_denom= get_ue_golomb(&s->gb);
    luma_def = 1<<h->luma_log2_weight_denom;
    chroma_def = 1<<h->chroma_log2_weight_denom;