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Diffstat (limited to 'media/ffvpx/libavcodec/vp9dec.h')
| -rw-r--r-- | media/ffvpx/libavcodec/vp9dec.h | 240 |
1 files changed, 240 insertions, 0 deletions
diff --git a/media/ffvpx/libavcodec/vp9dec.h b/media/ffvpx/libavcodec/vp9dec.h new file mode 100644 index 0000000000..66573edc79 --- /dev/null +++ b/media/ffvpx/libavcodec/vp9dec.h @@ -0,0 +1,240 @@ +/* + * 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_VP9DEC_H +#define AVCODEC_VP9DEC_H + +#include <stddef.h> +#include <stdint.h> +#include <stdatomic.h> + +#include "libavutil/buffer.h" +#include "libavutil/thread.h" +#include "libavutil/internal.h" + +#include "vp9.h" +#include "vp9dsp.h" +#include "vp9shared.h" + +enum MVJoint { + MV_JOINT_ZERO, + MV_JOINT_H, + MV_JOINT_V, + MV_JOINT_HV, +}; + +typedef struct ProbContext { + uint8_t y_mode[4][9]; + uint8_t uv_mode[10][9]; + uint8_t filter[4][2]; + uint8_t mv_mode[7][3]; + uint8_t intra[4]; + uint8_t comp[5]; + uint8_t single_ref[5][2]; + uint8_t comp_ref[5]; + uint8_t tx32p[2][3]; + uint8_t tx16p[2][2]; + uint8_t tx8p[2]; + uint8_t skip[3]; + uint8_t mv_joint[3]; + struct { + uint8_t sign; + uint8_t classes[10]; + uint8_t class0; + uint8_t bits[10]; + uint8_t class0_fp[2][3]; + uint8_t fp[3]; + uint8_t class0_hp; + uint8_t hp; + } mv_comp[2]; + uint8_t partition[4][4][3]; +} ProbContext; + +typedef struct VP9Filter { + uint8_t level[8 * 8]; + uint8_t /* bit=col */ mask[2 /* 0=y, 1=uv */][2 /* 0=col, 1=row */] + [8 /* rows */][4 /* 0=16, 1=8, 2=4, 3=inner4 */]; +} VP9Filter; + +typedef struct VP9Block { + uint8_t seg_id, intra, comp, ref[2], mode[4], uvmode, skip; + enum FilterMode filter; + VP56mv mv[4 /* b_idx */][2 /* ref */]; + enum BlockSize bs; + enum TxfmMode tx, uvtx; + enum BlockLevel bl; + enum BlockPartition bp; +} VP9Block; + +typedef struct VP9TileData VP9TileData; + +typedef struct VP9Context { + VP9SharedContext s; + VP9TileData *td; + + VP9DSPContext dsp; + VideoDSPContext vdsp; + GetBitContext gb; + VP56RangeCoder c; + int pass, active_tile_cols; + +#if HAVE_THREADS + pthread_mutex_t progress_mutex; + pthread_cond_t progress_cond; + atomic_int *entries; +#endif + + uint8_t ss_h, ss_v; + uint8_t last_bpp, bpp_index, bytesperpixel; + uint8_t last_keyframe; + // sb_cols/rows, rows/cols and last_fmt are used for allocating all internal + // arrays, and are thus per-thread. w/h and gf_fmt are synced between threads + // and are therefore per-stream. pix_fmt represents the value in the header + // of the currently processed frame. + int w, h; + enum AVPixelFormat pix_fmt, last_fmt, gf_fmt; + unsigned sb_cols, sb_rows, rows, cols; + ThreadFrame next_refs[8]; + + struct { + uint8_t lim_lut[64]; + uint8_t mblim_lut[64]; + } filter_lut; + struct { + ProbContext p; + uint8_t coef[4][2][2][6][6][3]; + } prob_ctx[4]; + struct { + ProbContext p; + uint8_t coef[4][2][2][6][6][11]; + } prob; + + // contextual (above) cache + uint8_t *above_partition_ctx; + uint8_t *above_mode_ctx; + // FIXME maybe merge some of the below in a flags field? + uint8_t *above_y_nnz_ctx; + uint8_t *above_uv_nnz_ctx[2]; + uint8_t *above_skip_ctx; // 1bit + uint8_t *above_txfm_ctx; // 2bit + uint8_t *above_segpred_ctx; // 1bit + uint8_t *above_intra_ctx; // 1bit + uint8_t *above_comp_ctx; // 1bit + uint8_t *above_ref_ctx; // 2bit + uint8_t *above_filter_ctx; + VP56mv (*above_mv_ctx)[2]; + + // whole-frame cache + uint8_t *intra_pred_data[3]; + VP9Filter *lflvl; + + // block reconstruction intermediates + int block_alloc_using_2pass; + uint16_t mvscale[3][2]; + uint8_t mvstep[3][2]; +} VP9Context; + +struct VP9TileData { + //VP9Context should be const, but because of the threading API(generates + //a lot of warnings) it's not. + VP9Context *s; + VP56RangeCoder *c_b; + VP56RangeCoder *c; + int row, row7, col, col7; + uint8_t *dst[3]; + ptrdiff_t y_stride, uv_stride; + VP9Block *b_base, *b; + unsigned tile_col_start; + + struct { + unsigned y_mode[4][10]; + unsigned uv_mode[10][10]; + unsigned filter[4][3]; + unsigned mv_mode[7][4]; + unsigned intra[4][2]; + unsigned comp[5][2]; + unsigned single_ref[5][2][2]; + unsigned comp_ref[5][2]; + unsigned tx32p[2][4]; + unsigned tx16p[2][3]; + unsigned tx8p[2][2]; + unsigned skip[3][2]; + unsigned mv_joint[4]; + struct { + unsigned sign[2]; + unsigned classes[11]; + unsigned class0[2]; + unsigned bits[10][2]; + unsigned class0_fp[2][4]; + unsigned fp[4]; + unsigned class0_hp[2]; + unsigned hp[2]; + } mv_comp[2]; + unsigned partition[4][4][4]; + unsigned coef[4][2][2][6][6][3]; + unsigned eob[4][2][2][6][6][2]; + } counts; + + // whole-frame cache + DECLARE_ALIGNED(32, uint8_t, edge_emu_buffer)[135 * 144 * 2]; + + // contextual (left) cache + DECLARE_ALIGNED(16, uint8_t, left_y_nnz_ctx)[16]; + DECLARE_ALIGNED(16, uint8_t, left_mode_ctx)[16]; + DECLARE_ALIGNED(16, VP56mv, left_mv_ctx)[16][2]; + DECLARE_ALIGNED(16, uint8_t, left_uv_nnz_ctx)[2][16]; + DECLARE_ALIGNED(8, uint8_t, left_partition_ctx)[8]; + DECLARE_ALIGNED(8, uint8_t, left_skip_ctx)[8]; + DECLARE_ALIGNED(8, uint8_t, left_txfm_ctx)[8]; + DECLARE_ALIGNED(8, uint8_t, left_segpred_ctx)[8]; + DECLARE_ALIGNED(8, uint8_t, left_intra_ctx)[8]; + DECLARE_ALIGNED(8, uint8_t, left_comp_ctx)[8]; + DECLARE_ALIGNED(8, uint8_t, left_ref_ctx)[8]; + DECLARE_ALIGNED(8, uint8_t, left_filter_ctx)[8]; + // block reconstruction intermediates + DECLARE_ALIGNED(32, uint8_t, tmp_y)[64 * 64 * 2]; + DECLARE_ALIGNED(32, uint8_t, tmp_uv)[2][64 * 64 * 2]; + struct { int x, y; } min_mv, max_mv; + int16_t *block_base, *block, *uvblock_base[2], *uvblock[2]; + uint8_t *eob_base, *uveob_base[2], *eob, *uveob[2]; +}; + +void ff_vp9_fill_mv(VP9TileData *td, VP56mv *mv, int mode, int sb); + +void ff_vp9_adapt_probs(VP9Context *s); + +void ff_vp9_decode_block(VP9TileData *td, int row, int col, + VP9Filter *lflvl, ptrdiff_t yoff, ptrdiff_t uvoff, + enum BlockLevel bl, enum BlockPartition bp); + +void ff_vp9_loopfilter_sb(AVCodecContext *avctx, VP9Filter *lflvl, + int row, int col, ptrdiff_t yoff, ptrdiff_t uvoff); + +void ff_vp9_intra_recon_8bpp(VP9TileData *td, + ptrdiff_t y_off, ptrdiff_t uv_off); +void ff_vp9_intra_recon_16bpp(VP9TileData *td, + ptrdiff_t y_off, ptrdiff_t uv_off); +void ff_vp9_inter_recon_8bpp(VP9TileData *td); +void ff_vp9_inter_recon_16bpp(VP9TileData *td); + +#endif /* AVCODEC_VP9DEC_H */ |