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| author | Ronald S. Bultje <rsbultje@gmail.com> | 2010-09-14 13:36:26 +0000 |
|---|---|---|
| committer | Ronald S. Bultje <rsbultje@gmail.com> | 2010-09-14 13:36:26 +0000 |
| commit | 1d16a1cf99488f16492b1bb48e023f4da8377e07 (patch) | |
| tree | bbb29695e29d17f22118af56d4c511b286a08e11 /libavcodec/h264.c | |
| parent | 6ebf0bfc17253e29a226e888fb9b7b31574a2eed (diff) | |
| download | ffmpeg-1d16a1cf99488f16492b1bb48e023f4da8377e07.tar.gz | |
Rename h264_idct_sse2.asm to h264_idct.asm; move inline IDCT asm from
h264dsp_mmx.c to h264_idct.asm (as yasm code). Because the loops are now
coded in asm instead of C, this is (depending on the function) up to 50%
faster for cases where gcc didn't do a great job at looping.
Since h264_idct_add8() is now faster than the manual loop setup in h264.c,
in-asm idct calling can now be enabled for chroma as well (see r16207). For
MMX, this is 5% faster. For SSE2 (which isn't done for chroma if h264.c does
the looping), this makes it up to 50% faster. Speed gain overall is ~0.5-1.0%.
Originally committed as revision 25119 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/h264.c')
| -rw-r--r-- | libavcodec/h264.c | 11 |
1 files changed, 3 insertions, 8 deletions
diff --git a/libavcodec/h264.c b/libavcodec/h264.c index d1662fcb6b..49bbe302e8 100644 --- a/libavcodec/h264.c +++ b/libavcodec/h264.c @@ -1318,14 +1318,9 @@ static av_always_inline void hl_decode_mb_internal(H264Context *h, int simple){ chroma_dc_dequant_idct_c(h->mb + 16*16, h->chroma_qp[0], h->dequant4_coeff[IS_INTRA(mb_type) ? 1:4][h->chroma_qp[0]][0]); chroma_dc_dequant_idct_c(h->mb + 16*16+4*16, h->chroma_qp[1], h->dequant4_coeff[IS_INTRA(mb_type) ? 2:5][h->chroma_qp[1]][0]); if(is_h264){ - idct_add = h->h264dsp.h264_idct_add; - idct_dc_add = h->h264dsp.h264_idct_dc_add; - for(i=16; i<16+8; i++){ - if(h->non_zero_count_cache[ scan8[i] ]) - idct_add (dest[(i&4)>>2] + block_offset[i], h->mb + i*16, uvlinesize); - else if(h->mb[i*16]) - idct_dc_add(dest[(i&4)>>2] + block_offset[i], h->mb + i*16, uvlinesize); - } + h->h264dsp.h264_idct_add8(dest, block_offset, + h->mb, uvlinesize, + h->non_zero_count_cache); }else{ for(i=16; i<16+8; i++){ if(h->non_zero_count_cache[ scan8[i] ] || h->mb[i*16]){ |