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| author | Michael Niedermayer <michaelni@gmx.at> | 2002-02-13 15:26:28 +0000 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2002-02-13 15:26:28 +0000 |
| commit | f004ca1c1b5d272d8344ef12ab006cfe52cbf023 (patch) | |
| tree | 71cf9b347708375ebdf005bf665ff8b159217d3c /libavcodec/mpeg12data.h | |
| parent | 80feb2a23ec6cc2ce459404041485a6dfaaffbe6 (diff) | |
| download | ffmpeg-f004ca1c1b5d272d8344ef12ab006cfe52cbf023.tar.gz | |
optimized encode_dc() (+2% speed on P3 for mpeg1 intra only encodings)
Originally committed as revision 298 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/mpeg12data.h')
| -rw-r--r-- | libavcodec/mpeg12data.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/libavcodec/mpeg12data.h b/libavcodec/mpeg12data.h index 4261986d24..65a8a2b9ae 100644 --- a/libavcodec/mpeg12data.h +++ b/libavcodec/mpeg12data.h @@ -61,6 +61,10 @@ const unsigned char vlc_dc_chroma_bits[12] = { 2, 2, 2, 3, 4, 5, 6, 7, 8, 9, 10, 10, }; +/* simple include everything table for dc, first byte is bits number next 3 are code*/ +static UINT32 mpeg1_lum_dc_uni[512]; +static UINT32 mpeg1_chr_dc_uni[512]; + static const UINT16 mpeg1_vlc[113][2] = { { 0x3, 2 }, { 0x4, 4 }, { 0x5, 5 }, { 0x6, 7 }, { 0x26, 8 }, { 0x21, 8 }, { 0xa, 10 }, { 0x1d, 12 }, |