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Diffstat (limited to '')
| -rw-r--r-- | media/ffvpx/libavcodec/vp9dsp.h | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/media/ffvpx/libavcodec/vp9dsp.h b/media/ffvpx/libavcodec/vp9dsp.h new file mode 100644 index 0000000000..e2256316a8 --- /dev/null +++ b/media/ffvpx/libavcodec/vp9dsp.h @@ -0,0 +1,136 @@ +/* + * VP9 compatible video decoder + * + * Copyright (C) 2013 Ronald S. Bultje <rsbultje gmail com> + * Copyright (C) 2013 Clément Bœsch <u pkh me> + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef AVCODEC_VP9DSP_H +#define AVCODEC_VP9DSP_H + +#include <stddef.h> +#include <stdint.h> + +#include "libavcodec/vp9.h" + +typedef void (*vp9_mc_func)(uint8_t *dst, ptrdiff_t dst_stride, + const uint8_t *ref, ptrdiff_t ref_stride, + int h, int mx, int my); +typedef void (*vp9_scaled_mc_func)(uint8_t *dst, ptrdiff_t dst_stride, + const uint8_t *ref, ptrdiff_t ref_stride, + int h, int mx, int my, int dx, int dy); + +typedef struct VP9DSPContext { + /* + * dimension 1: 0=4x4, 1=8x8, 2=16x16, 3=32x32 + * dimension 2: intra prediction modes + * + * dst/left/top is aligned by transform-size (i.e. 4, 8, 16 or 32 pixels) + * stride is aligned by 16 pixels + * top[-1] is top/left; top[4,7] is top-right for 4x4 + */ + // FIXME(rbultje) maybe replace left/top pointers with HAVE_TOP/ + // HAVE_LEFT/HAVE_TOPRIGHT flags instead, and then handle it in-place? + // also needs to fit in with what H.264/VP8/etc do + void (*intra_pred[N_TXFM_SIZES][N_INTRA_PRED_MODES])(uint8_t *dst, + ptrdiff_t stride, + const uint8_t *left, + const uint8_t *top); + + /* + * dimension 1: 0=4x4, 1=8x8, 2=16x16, 3=32x32, 4=lossless (3-4=dct only) + * dimension 2: 0=dct/dct, 1=dct/adst, 2=adst/dct, 3=adst/adst + * + * dst is aligned by transform-size (i.e. 4, 8, 16 or 32 pixels) + * stride is aligned by 16 pixels + * block is 16-byte aligned + * eob indicates the position (+1) of the last non-zero coefficient, + * in scan-order. This can be used to write faster versions, e.g. a + * dc-only 4x4/8x8/16x16/32x32, or a 4x4-only (eob<10) 8x8/16x16/32x32, + * etc. + */ + // FIXME also write idct_add_block() versions for whole (inter) pred + // blocks, so we can do 2 4x4s at once + void (*itxfm_add[N_TXFM_SIZES + 1][N_TXFM_TYPES])(uint8_t *dst, + ptrdiff_t stride, + int16_t *block, int eob); + + /* + * dimension 1: width of filter (0=4, 1=8, 2=16) + * dimension 2: 0=col-edge filter (h), 1=row-edge filter (v) + * + * dst/stride are aligned by 8 + */ + void (*loop_filter_8[3][2])(uint8_t *dst, ptrdiff_t stride, + int mb_lim, int lim, int hev_thr); + + /* + * dimension 1: 0=col-edge filter (h), 1=row-edge filter (v) + * + * The width of filter is assumed to be 16; dst/stride are aligned by 16 + */ + void (*loop_filter_16[2])(uint8_t *dst, ptrdiff_t stride, + int mb_lim, int lim, int hev_thr); + + /* + * dimension 1/2: width of filter (0=4, 1=8) for each filter half + * dimension 3: 0=col-edge filter (h), 1=row-edge filter (v) + * + * dst/stride are aligned by operation size + * this basically calls loop_filter[d1][d3][0](), followed by + * loop_filter[d2][d3][0]() on the next 8 pixels + * mb_lim/lim/hev_thr contain two values in the lowest two bytes of the + * integer. + */ + // FIXME perhaps a mix4 that operates on 32px (for AVX2) + void (*loop_filter_mix2[2][2][2])(uint8_t *dst, ptrdiff_t stride, + int mb_lim, int lim, int hev_thr); + + /* + * dimension 1: hsize (0: 64, 1: 32, 2: 16, 3: 8, 4: 4) + * dimension 2: filter type (0: smooth, 1: regular, 2: sharp, 3: bilin) + * dimension 3: averaging type (0: put, 1: avg) + * dimension 4: x subpel interpolation (0: none, 1: 8tap/bilin) + * dimension 5: y subpel interpolation (0: none, 1: 8tap/bilin) + * + * dst/stride are aligned by hsize + */ + vp9_mc_func mc[5][N_FILTERS][2][2][2]; + + /* + * for scalable MC, first 3 dimensions identical to above, the other two + * don't exist since it changes per stepsize. + */ + vp9_scaled_mc_func smc[5][N_FILTERS][2]; +} VP9DSPContext; + +extern const int16_t ff_vp9_subpel_filters[3][16][8]; + +void ff_vp9dsp_init(VP9DSPContext *dsp, int bpp, int bitexact); + +void ff_vp9dsp_init_8(VP9DSPContext *dsp); +void ff_vp9dsp_init_10(VP9DSPContext *dsp); +void ff_vp9dsp_init_12(VP9DSPContext *dsp); + +void ff_vp9dsp_init_aarch64(VP9DSPContext *dsp, int bpp); +void ff_vp9dsp_init_arm(VP9DSPContext *dsp, int bpp); +void ff_vp9dsp_init_x86(VP9DSPContext *dsp, int bpp, int bitexact); +void ff_vp9dsp_init_mips(VP9DSPContext *dsp, int bpp); + +#endif /* AVCODEC_VP9DSP_H */ |