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| author | Måns Rullgård <mans@mansr.com> | 2010-02-18 16:24:31 +0000 |
|---|---|---|
| committer | Måns Rullgård <mans@mansr.com> | 2010-02-18 16:24:31 +0000 |
| commit | 19769ece3bd99b7570f39c9c605bee1bbada2b57 (patch) | |
| tree | db19c1e9e60ff41d57dfd1a76a4eb08509f924f6 /libavcodec/h264_direct.c | |
| parent | f4a7434f16afc4616a34a7cd1bd8e592ed04e89f (diff) | |
| download | ffmpeg-19769ece3bd99b7570f39c9c605bee1bbada2b57.tar.gz | |
H264: use alias-safe macros
This eliminates all aliasing violation warnings in h264 code.
No measurable speed difference with gcc-4.4.3 on i7.
Originally committed as revision 21881 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/h264_direct.c')
| -rw-r--r-- | libavcodec/h264_direct.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/libavcodec/h264_direct.c b/libavcodec/h264_direct.c index e461fea06f..8977be114f 100644 --- a/libavcodec/h264_direct.c +++ b/libavcodec/h264_direct.c @@ -183,11 +183,11 @@ static void pred_spatial_direct_motion(H264Context * const h, int *mb_type){ }else { assert(match_count==1); if(left_ref==ref[list]){ - mv[list]= *(uint32_t*)A; + mv[list]= AV_RN32A(A); }else if(top_ref==ref[list]){ - mv[list]= *(uint32_t*)B; + mv[list]= AV_RN32A(B); }else{ - mv[list]= *(uint32_t*)C; + mv[list]= AV_RN32A(C); } } }else{ @@ -362,9 +362,9 @@ single_col: const int16_t *mv_col = l1mv[x8*2 + (i4&1) + (y8*2 + (i4>>1))*b4_stride]; if(FFABS(mv_col[0]) <= 1 && FFABS(mv_col[1]) <= 1){ if(ref[0] == 0) - *(uint32_t*)h->mv_cache[0][scan8[i8*4+i4]] = 0; + AV_ZERO32(h->mv_cache[0][scan8[i8*4+i4]]); if(ref[1] == 0) - *(uint32_t*)h->mv_cache[1][scan8[i8*4+i4]] = 0; + AV_ZERO32(h->mv_cache[1][scan8[i8*4+i4]]); m++; } } @@ -571,8 +571,8 @@ single_col: int16_t *mv_l0 = h->mv_cache[0][scan8[i8*4+i4]]; mv_l0[0] = (scale * mv_col[0] + 128) >> 8; mv_l0[1] = (scale * mv_col[1] + 128) >> 8; - *(uint32_t*)h->mv_cache[1][scan8[i8*4+i4]] = - pack16to32(mv_l0[0]-mv_col[0],mv_l0[1]-mv_col[1]); + AV_WN32A(h->mv_cache[1][scan8[i8*4+i4]], + pack16to32(mv_l0[0]-mv_col[0],mv_l0[1]-mv_col[1])); } } } |