| /* |
| * 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" |
| |
| #define REF_INVALID_SCALE 0xFFFF |
| |
| 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]; |
| |
| // frame specific buffer pools |
| AVBufferPool *frame_extradata_pool; |
| int frame_extradata_pool_size; |
| } 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]; |
| |
| // error message |
| int error_info; |
| struct { |
| unsigned int row:13; |
| unsigned int col:13; |
| unsigned int block_size_idx_x:2; |
| unsigned int block_size_idx_y:2; |
| } *block_structure; |
| unsigned int nb_block_structure; |
| }; |
| |
| 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 */ |