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h264: do not use 422 functions for monochrome

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Fixes invalid memory access.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC:libav-stable@libav.org
This commit is contained in:
Anton Khirnov
2013-11-28 10:54:35 +01:00
parent 9eef9eb301
commit a03a642d5c
6 changed files with 30 additions and 30 deletions
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2
libavcodec/ppc/h264dsp.c
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@@ -750,7 +750,7 @@ av_cold void ff_h264dsp_init_ppc(H264DSPContext *c, const int bit_depth,
if (bit_depth == 8) {
c->h264_idct_add = h264_idct_add_altivec;
if (chroma_format_idc == 1)
if (chroma_format_idc <= 1)
c->h264_idct_add8 = h264_idct_add8_altivec;
c->h264_idct_add16 = h264_idct_add16_altivec;
c->h264_idct_add16intra = h264_idct_add16intra_altivec;