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| author | Fabrice Bellard <fabrice@bellard.org> | 2001-08-07 22:43:19 +0000 |
|---|---|---|
| committer | Fabrice Bellard <fabrice@bellard.org> | 2001-08-07 22:43:19 +0000 |
| commit | e0eac44e826faa010ebf6f48b0d4e9e11d50cd9b (patch) | |
| tree | 2695c2e327feb66df08c324da963b3c396702a21 /libavcodec/dsputil.h | |
| parent | 9e1586fce9c806baba9d446b150158cc0145ce66 (diff) | |
| download | ffmpeg-e0eac44e826faa010ebf6f48b0d4e9e11d50cd9b.tar.gz | |
added block permutation functions
Originally committed as revision 45 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/dsputil.h')
| -rw-r--r-- | libavcodec/dsputil.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/libavcodec/dsputil.h b/libavcodec/dsputil.h index ffbc395bad..ebb4d8446c 100644 --- a/libavcodec/dsputil.h +++ b/libavcodec/dsputil.h @@ -15,6 +15,11 @@ void fdct_mmx(DCTELEM *block); void (*av_fdct)(DCTELEM *block); +/* encoding scans */ +extern UINT8 ff_alternate_horizontal_scan[64]; +extern UINT8 ff_alternate_vertical_scan[64]; +extern UINT8 zigzag_direct[64]; + /* pixel operations */ #define MAX_NEG_CROP 384 @@ -62,6 +67,13 @@ int pix_abs16x16_x2_c(UINT8 *blk1, UINT8 *blk2, int lx, int h); int pix_abs16x16_y2_c(UINT8 *blk1, UINT8 *blk2, int lx, int h); int pix_abs16x16_xy2_c(UINT8 *blk1, UINT8 *blk2, int lx, int h); +static inline int block_permute_op(int j) +{ + return (j & 0x38) | ((j & 6) >> 1) | ((j & 1) << 2); +} + +void block_permute(INT16 *block); + #ifdef HAVE_MMX #define MM_MMX 0x0001 /* standard MMX */ |