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| author | Jason Garrett-Glaser <darkshikari@gmail.com> | 2011-01-14 21:34:25 +0000 |
|---|---|---|
| committer | Jason Garrett-Glaser <darkshikari@gmail.com> | 2011-01-14 21:34:25 +0000 |
| commit | 19fb234e4af1ff9f58ff2fdd604ac6f6bb87ad6b (patch) | |
| tree | 220be84d79d9c771c1afeab43fdd2aaa82fea01d /libavcodec/h264.h | |
| parent | 6c18f1cda2e2b2471ebf75d30d552cb0cb61b6ad (diff) | |
| download | ffmpeg-19fb234e4af1ff9f58ff2fdd604ac6f6bb87ad6b.tar.gz | |
H.264: split luma dc idct out and implement MMX/SSE2 versions
About 2.5x the speed.
NOTE: the way that the asm code handles large qmuls is a bit suboptimal.
If x264-style dequant was used (separate shift and qmul values), it might
be possible to get some extra speed.
Originally committed as revision 26336 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/h264.h')
| -rw-r--r-- | libavcodec/h264.h | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/libavcodec/h264.h b/libavcodec/h264.h index 7158d9748e..189864bb38 100644 --- a/libavcodec/h264.h +++ b/libavcodec/h264.h @@ -406,6 +406,7 @@ typedef struct H264Context{ GetBitContext *inter_gb_ptr; DECLARE_ALIGNED(16, DCTELEM, mb)[16*24]; + DECLARE_ALIGNED(16, DCTELEM, mb_luma_dc)[16]; DCTELEM mb_padding[256]; ///< as mb is addressed by scantable[i] and scantable is uint8_t we can either check that i is not too large or ensure that there is some unused stuff after mb /** @@ -600,10 +601,6 @@ typedef struct H264Context{ extern const uint8_t ff_h264_chroma_qp[52]; -void ff_svq3_luma_dc_dequant_idct_c(DCTELEM *block, int qp); - -void ff_svq3_add_idct_c(uint8_t *dst, DCTELEM *block, int stride, int qp, int dc); - /** * Decode SEI */ |