The Tor Browser: media/libvpx/vp9/common/vp9_onyxc

media/libvpx/vp9/common/vp9_onyxc_int.h@6474c204b198 (annotated)

media/libvpx/vp9/common/vp9_onyxc_int.h

Wed, 31 Dec 2014 06:09:35 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 06:09:35 +0100
changeset 0: 6474c204b198
permissions: -rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

 /*
  *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 #ifndef VP9_COMMON_VP9_ONYXC_INT_H_
 #define VP9_COMMON_VP9_ONYXC_INT_H_
 #include "./vpx_config.h"
 #include "vpx/internal/vpx_codec_internal.h"
 #include "./vp9_rtcd.h"
 #include "vp9/common/vp9_loopfilter.h"
 #include "vp9/common/vp9_entropymv.h"
 #include "vp9/common/vp9_entropy.h"
 #include "vp9/common/vp9_entropymode.h"
 #include "vp9/common/vp9_quant_common.h"
 #include "vp9/common/vp9_tile_common.h"
 #if CONFIG_VP9_POSTPROC
 #include "vp9/common/vp9_postproc.h"
 #endif
 #define ALLOWED_REFS_PER_FRAME 3
 #define NUM_REF_FRAMES_LOG2 3
 #define NUM_REF_FRAMES (1 << NUM_REF_FRAMES_LOG2)
 // 1 scratch frame for the new frame, 3 for scaled references on the encoder
 // TODO(jkoleszar): These 3 extra references could probably come from the
 // normal reference pool.
 #define NUM_YV12_BUFFERS (NUM_REF_FRAMES + 4)
 #define NUM_FRAME_CONTEXTS_LOG2 2
 #define NUM_FRAME_CONTEXTS (1 << NUM_FRAME_CONTEXTS_LOG2)
 typedef struct frame_contexts {
   vp9_prob y_mode_prob[BLOCK_SIZE_GROUPS][INTRA_MODES - 1];
   vp9_prob uv_mode_prob[INTRA_MODES][INTRA_MODES - 1];
   vp9_prob partition_prob[PARTITION_CONTEXTS][PARTITION_TYPES - 1];
   vp9_coeff_probs_model coef_probs[TX_SIZES][BLOCK_TYPES];
   vp9_prob switchable_interp_prob[SWITCHABLE_FILTER_CONTEXTS]
                                  [SWITCHABLE_FILTERS - 1];
   vp9_prob inter_mode_probs[INTER_MODE_CONTEXTS][INTER_MODES - 1];
   vp9_prob intra_inter_prob[INTRA_INTER_CONTEXTS];
   vp9_prob comp_inter_prob[COMP_INTER_CONTEXTS];
   vp9_prob single_ref_prob[REF_CONTEXTS][2];
   vp9_prob comp_ref_prob[REF_CONTEXTS];
   struct tx_probs tx_probs;
   vp9_prob mbskip_probs[MBSKIP_CONTEXTS];
   nmv_context nmvc;
 } FRAME_CONTEXT;
 typedef struct {
   unsigned int y_mode[BLOCK_SIZE_GROUPS][INTRA_MODES];
   unsigned int uv_mode[INTRA_MODES][INTRA_MODES];
   unsigned int partition[PARTITION_CONTEXTS][PARTITION_TYPES];
   vp9_coeff_count_model coef[TX_SIZES][BLOCK_TYPES];
   unsigned int eob_branch[TX_SIZES][BLOCK_TYPES][REF_TYPES]
                          [COEF_BANDS][PREV_COEF_CONTEXTS];
   unsigned int switchable_interp[SWITCHABLE_FILTER_CONTEXTS]
                                 [SWITCHABLE_FILTERS];
   unsigned int inter_mode[INTER_MODE_CONTEXTS][INTER_MODES];
   unsigned int intra_inter[INTRA_INTER_CONTEXTS][2];
   unsigned int comp_inter[COMP_INTER_CONTEXTS][2];
   unsigned int single_ref[REF_CONTEXTS][2][2];
   unsigned int comp_ref[REF_CONTEXTS][2];
   struct tx_counts tx;
   unsigned int mbskip[MBSKIP_CONTEXTS][2];
   nmv_context_counts mv;
 } FRAME_COUNTS;
 typedef enum {
   SINGLE_PREDICTION_ONLY = 0,
   COMP_PREDICTION_ONLY   = 1,
   HYBRID_PREDICTION      = 2,
   NB_PREDICTION_TYPES    = 3,
 } COMPPREDMODE_TYPE;
 typedef struct VP9Common {
   struct vpx_internal_error_info  error;
   DECLARE_ALIGNED(16, int16_t, y_dequant[QINDEX_RANGE][8]);
   DECLARE_ALIGNED(16, int16_t, uv_dequant[QINDEX_RANGE][8]);
 #if CONFIG_ALPHA
   DECLARE_ALIGNED(16, int16_t, a_dequant[QINDEX_RANGE][8]);
 #endif
   COLOR_SPACE color_space;
   int width;
   int height;
   int display_width;
   int display_height;
   int last_width;
   int last_height;
   // TODO(jkoleszar): this implies chroma ss right now, but could vary per
   // plane. Revisit as part of the future change to YV12_BUFFER_CONFIG to
   // support additional planes.
   int subsampling_x;
   int subsampling_y;
   YV12_BUFFER_CONFIG *frame_to_show;
   YV12_BUFFER_CONFIG yv12_fb[NUM_YV12_BUFFERS];
   int fb_idx_ref_cnt[NUM_YV12_BUFFERS]; /* reference counts */
   int ref_frame_map[NUM_REF_FRAMES]; /* maps fb_idx to reference slot */
   // TODO(jkoleszar): could expand active_ref_idx to 4, with 0 as intra, and
   // roll new_fb_idx into it.
   // Each frame can reference ALLOWED_REFS_PER_FRAME buffers
   int active_ref_idx[ALLOWED_REFS_PER_FRAME];
   struct scale_factors active_ref_scale[ALLOWED_REFS_PER_FRAME];
   struct scale_factors_common active_ref_scale_comm[ALLOWED_REFS_PER_FRAME];
   int new_fb_idx;
   YV12_BUFFER_CONFIG post_proc_buffer;
   FRAME_TYPE last_frame_type;  /* last frame's frame type for motion search.*/
   FRAME_TYPE frame_type;
   int show_frame;
   int last_show_frame;
   // Flag signaling that the frame is encoded using only INTRA modes.
   int intra_only;
   int allow_high_precision_mv;
   // Flag signaling that the frame context should be reset to default values.
   // 0 or 1 implies don't reset, 2 reset just the context specified in the
   // frame header, 3 reset all contexts.
   int reset_frame_context;
   int frame_flags;
   // MBs, mb_rows/cols is in 16-pixel units; mi_rows/cols is in
   // MODE_INFO (8-pixel) units.
   int MBs;
   int mb_rows, mi_rows;
   int mb_cols, mi_cols;
   int mode_info_stride;
   /* profile settings */
   TX_MODE tx_mode;
   int base_qindex;
   int y_dc_delta_q;
   int uv_dc_delta_q;
   int uv_ac_delta_q;
 #if CONFIG_ALPHA
   int a_dc_delta_q;
   int a_ac_delta_q;
 #endif
   /* We allocate a MODE_INFO struct for each macroblock, together with
      an extra row on top and column on the left to simplify prediction. */
   MODE_INFO *mip; /* Base of allocated array */
   MODE_INFO *mi;  /* Corresponds to upper left visible macroblock */
   MODE_INFO *prev_mip; /* MODE_INFO array 'mip' from last decoded frame */
   MODE_INFO *prev_mi;  /* 'mi' from last frame (points into prev_mip) */
   MODE_INFO **mi_grid_base;
   MODE_INFO **mi_grid_visible;
   MODE_INFO **prev_mi_grid_base;
   MODE_INFO **prev_mi_grid_visible;
   // Persistent mb segment id map used in prediction.
   unsigned char *last_frame_seg_map;
   INTERPOLATION_TYPE mcomp_filter_type;
   loop_filter_info_n lf_info;
   int refresh_frame_context;    /* Two state 0 = NO, 1 = YES */
   int ref_frame_sign_bias[MAX_REF_FRAMES];    /* Two state 0, 1 */
   struct loopfilter lf;
   struct segmentation seg;
   // Context probabilities for reference frame prediction
   int allow_comp_inter_inter;
   MV_REFERENCE_FRAME comp_fixed_ref;
   MV_REFERENCE_FRAME comp_var_ref[2];
   COMPPREDMODE_TYPE comp_pred_mode;
   FRAME_CONTEXT fc;  /* this frame entropy */
   FRAME_CONTEXT frame_contexts[NUM_FRAME_CONTEXTS];
   unsigned int  frame_context_idx; /* Context to use/update */
   FRAME_COUNTS counts;
   unsigned int current_video_frame;
   int version;
 #if CONFIG_VP9_POSTPROC
   struct postproc_state  postproc_state;
 #endif
   int error_resilient_mode;
   int frame_parallel_decoding_mode;
   int log2_tile_cols, log2_tile_rows;
 } VP9_COMMON;
 // ref == 0 => LAST_FRAME
 // ref == 1 => GOLDEN_FRAME
 // ref == 2 => ALTREF_FRAME
 static YV12_BUFFER_CONFIG *get_frame_ref_buffer(VP9_COMMON *cm, int ref) {
   return &cm->yv12_fb[cm->active_ref_idx[ref]];
 }
 static YV12_BUFFER_CONFIG *get_frame_new_buffer(VP9_COMMON *cm) {
   return &cm->yv12_fb[cm->new_fb_idx];
 }
 static int get_free_fb(VP9_COMMON *cm) {
   int i;
   for (i = 0; i < NUM_YV12_BUFFERS; i++)
     if (cm->fb_idx_ref_cnt[i] == 0)
       break;
   assert(i < NUM_YV12_BUFFERS);
   cm->fb_idx_ref_cnt[i] = 1;
   return i;
 }
 static void ref_cnt_fb(int *buf, int *idx, int new_idx) {
   if (buf[*idx] > 0)
     buf[*idx]--;
   *idx = new_idx;
   buf[new_idx]++;
 }
 static int mi_cols_aligned_to_sb(int n_mis) {
   return ALIGN_POWER_OF_TWO(n_mis, MI_BLOCK_SIZE_LOG2);
 }
 static INLINE const vp9_prob* get_partition_probs(VP9_COMMON *cm, int ctx) {
   return cm->frame_type == KEY_FRAME ? vp9_kf_partition_probs[ctx]
                                      : cm->fc.partition_prob[ctx];
 }
 static INLINE void set_skip_context(
     MACROBLOCKD *xd,
     ENTROPY_CONTEXT *above_context[MAX_MB_PLANE],
     ENTROPY_CONTEXT left_context[MAX_MB_PLANE][16],
     int mi_row, int mi_col) {
   const int above_idx = mi_col * 2;
   const int left_idx = (mi_row * 2) & 15;
   int i;
   for (i = 0; i < MAX_MB_PLANE; i++) {
     struct macroblockd_plane *const pd = &xd->plane[i];
     pd->above_context = above_context[i] + (above_idx >> pd->subsampling_x);
     pd->left_context = left_context[i] + (left_idx >> pd->subsampling_y);
   }
 }
 static void set_mi_row_col(MACROBLOCKD *xd, const TileInfo *const tile,
                            int mi_row, int bh,
                            int mi_col, int bw,
                            int mi_rows, int mi_cols) {
   xd->mb_to_top_edge    = -((mi_row * MI_SIZE) * 8);
   xd->mb_to_bottom_edge = ((mi_rows - bh - mi_row) * MI_SIZE) * 8;
   xd->mb_to_left_edge   = -((mi_col * MI_SIZE) * 8);
   xd->mb_to_right_edge  = ((mi_cols - bw - mi_col) * MI_SIZE) * 8;
   // Are edges available for intra prediction?
   xd->up_available    = (mi_row != 0);
   xd->left_available  = (mi_col > tile->mi_col_start);
 }
 static void set_prev_mi(VP9_COMMON *cm) {
   const int use_prev_in_find_mv_refs = cm->width == cm->last_width &&
                                        cm->height == cm->last_height &&
                                        !cm->error_resilient_mode &&
                                        !cm->intra_only &&
                                        cm->last_show_frame;
   // Special case: set prev_mi to NULL when the previous mode info
   // context cannot be used.
   cm->prev_mi = use_prev_in_find_mv_refs ?
                   cm->prev_mip + cm->mode_info_stride + 1 : NULL;
 }
 static INLINE int frame_is_intra_only(const VP9_COMMON *const cm) {
   return cm->frame_type == KEY_FRAME || cm->intra_only;
 }
 static INLINE void update_partition_context(
     PARTITION_CONTEXT *above_seg_context,
     PARTITION_CONTEXT left_seg_context[8],
     int mi_row, int mi_col,
     BLOCK_SIZE sb_type,
     BLOCK_SIZE sb_size) {
   PARTITION_CONTEXT *above_ctx = above_seg_context + mi_col;
   PARTITION_CONTEXT *left_ctx = left_seg_context + (mi_row & MI_MASK);
   const int bsl = b_width_log2(sb_size), bs = (1 << bsl) / 2;
   const int bwl = b_width_log2(sb_type);
   const int bhl = b_height_log2(sb_type);
   const int boffset = b_width_log2(BLOCK_64X64) - bsl;
   const char pcval0 = ~(0xe << boffset);
   const char pcval1 = ~(0xf << boffset);
   const char pcvalue[2] = {pcval0, pcval1};
   assert(MAX(bwl, bhl) <= bsl);
   // update the partition context at the end notes. set partition bits
   // of block sizes larger than the current one to be one, and partition
   // bits of smaller block sizes to be zero.
   vpx_memset(above_ctx, pcvalue[bwl == bsl], bs);
   vpx_memset(left_ctx, pcvalue[bhl == bsl], bs);
 }
 static INLINE int partition_plane_context(
     const PARTITION_CONTEXT *above_seg_context,
     const PARTITION_CONTEXT left_seg_context[8],
     int mi_row, int mi_col,
     BLOCK_SIZE sb_type) {
   const PARTITION_CONTEXT *above_ctx = above_seg_context + mi_col;
   const PARTITION_CONTEXT *left_ctx = left_seg_context + (mi_row & MI_MASK);
   int bsl = mi_width_log2(sb_type), bs = 1 << bsl;
   int above = 0, left = 0, i;
   int boffset = mi_width_log2(BLOCK_64X64) - bsl;
   assert(mi_width_log2(sb_type) == mi_height_log2(sb_type));
   assert(bsl >= 0);
   assert(boffset >= 0);
   for (i = 0; i < bs; i++) {
     above |= above_ctx[i];
     left |= left_ctx[i];
   }
   above = (above & (1 << boffset)) > 0;
   left  = (left & (1 << boffset)) > 0;
   return (left * 2 + above) + bsl * PARTITION_PLOFFSET;
 }
 #endif  // VP9_COMMON_VP9_ONYXC_INT_H_

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media/libvpx/vp9/common/vp9_onyxc_int.h@6474c204b198 (annotated)

media/libvpx/vp9/common/vp9_onyxc_int.h