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hevc: always clip luma_log2_weight_denom

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Its value shall be between 0 and 7 according to the specifications.

CC: libav-stable@libav.org
Bug-Id: CID 1257502
This commit is contained in:
Vittorio Giovara 2014-12-10 01:41:44 +00:00 committed by Luca Barbato
parent 23fe589e19
commit 20d6ae4626
1 changed files with 1 additions and 1 deletions
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2
libavcodec/hevc.c
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@ -251,7 +251,7 @@ static void pred_weight_table(HEVCContext *s, GetBitContext *gb)
uint8_t luma_weight_l1_flag[16]; uint8_t luma_weight_l1_flag[16];
uint8_t chroma_weight_l1_flag[16]; uint8_t chroma_weight_l1_flag[16];
s->sh.luma_log2_weight_denom = get_ue_golomb_long(gb); s->sh.luma_log2_weight_denom = av_clip_c(get_ue_golomb_long(gb), 0, 7);
if (s->sps->chroma_format_idc != 0) { if (s->sps->chroma_format_idc != 0) {
int delta = get_se_golomb(gb); int delta = get_se_golomb(gb);
s->sh.chroma_log2_weight_denom = av_clip_c(s->sh.luma_log2_weight_denom + delta, 0, 7); s->sh.chroma_log2_weight_denom = av_clip_c(s->sh.luma_log2_weight_denom + delta, 0, 7);