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| author | Jason Garrett-Glaser <darkshikari@gmail.com> | 2010-08-03 23:21:47 +0000 |
|---|---|---|
| committer | Jason Garrett-Glaser <darkshikari@gmail.com> | 2010-08-03 23:21:47 +0000 |
| commit | b0d58795138c738c45c5b738418765939021b49f (patch) | |
| tree | 791ef04d7aef9a1427c95d9d8198ef622e0f4f5d /libavcodec/vp8data.h | |
| parent | 2eef529195ae7f83c9356ce55e9357f32f52f65d (diff) | |
| download | ffmpeg-b0d58795138c738c45c5b738418765939021b49f.tar.gz | |
VP8: slightly faster DCT coefficient probability update
Originally committed as revision 24687 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/vp8data.h')
| -rw-r--r-- | libavcodec/vp8data.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/libavcodec/vp8data.h b/libavcodec/vp8data.h index ce64262758..775472e8e8 100644 --- a/libavcodec/vp8data.h +++ b/libavcodec/vp8data.h @@ -293,6 +293,20 @@ static const uint8_t vp8_coeff_band[16] = 0, 1, 2, 3, 6, 4, 5, 6, 6, 6, 6, 6, 6, 6, 6, 7 }; +/* Inverse of vp8_coeff_band: mappings of bands to coefficient indexes. + * Each list is -1-terminated. */ +static const int8_t vp8_coeff_band_indexes[8][10] = +{ + {0, -1}, + {1, -1}, + {2, -1}, + {3, -1}, + {5, -1}, + {6, -1}, + {4, 7, 8, 9, 10, 11, 12, 13, 14, -1}, + {15, -1} +}; + static const uint8_t vp8_dct_cat1_prob[] = { 159, 0 }; static const uint8_t vp8_dct_cat2_prob[] = { 165, 145, 0 }; static const uint8_t vp8_dct_cat3_prob[] = { 173, 148, 140, 0 }; |