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Merge "vpx_dsp/bitwriter.h: vp9_->vpx_"

This commit is contained in:
Yaowu Xu 2015-07-21 04:10:07 +00:00 коммит произвёл Gerrit Code Review
Родитель 41c13ddbc9 817be1d214
Коммит 987451d864
9 изменённых файлов: 102 добавлений и 102 удалений
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8
test/vp9_boolcoder_test.cc
Просмотреть файл

@ -50,9 +50,9 @@ TEST(VP9, TestBitIO) {
const int random_seed = 6432;
const int kBufferSize = 10000;
ACMRandom bit_rnd(random_seed);
vp9_writer bw;
vpx_writer bw;
uint8_t bw_buffer[kBufferSize];
vp9_start_encode(&bw, bw_buffer);
vpx_start_encode(&bw, bw_buffer);
int bit = (bit_method == 0) ? 0 : (bit_method == 1) ? 1 : 0;
for (int i = 0; i < kBitsToTest; ++i) {
@ -61,10 +61,10 @@ TEST(VP9, TestBitIO) {
} else if (bit_method == 3) {
bit = bit_rnd(2);
}
vp9_write(&bw, bit, static_cast<int>(probas[i]));
vpx_write(&bw, bit, static_cast<int>(probas[i]));
}
vp9_stop_encode(&bw);
vpx_stop_encode(&bw);
// First bit should be zero
GTEST_ASSERT_EQ(bw_buffer[0] & 0x80, 0);

104
vp9/encoder/vp9_bitstream.c
Просмотреть файл

@ -44,12 +44,12 @@ static const struct vp9_token partition_encodings[PARTITION_TYPES] =
static const struct vp9_token inter_mode_encodings[INTER_MODES] =
{{2, 2}, {6, 3}, {0, 1}, {7, 3}};
static void write_intra_mode(vp9_writer *w, PREDICTION_MODE mode,
static void write_intra_mode(vpx_writer *w, PREDICTION_MODE mode,
const vpx_prob *probs) {
vp9_write_token(w, vp9_intra_mode_tree, probs, &intra_mode_encodings[mode]);
}
static void write_inter_mode(vp9_writer *w, PREDICTION_MODE mode,
static void write_inter_mode(vpx_writer *w, PREDICTION_MODE mode,
const vpx_prob *probs) {
assert(is_inter_mode(mode));
vp9_write_token(w, vp9_inter_mode_tree, probs,
@ -64,7 +64,7 @@ static void encode_unsigned_max(struct vp9_write_bit_buffer *wb,
static void prob_diff_update(const vpx_tree_index *tree,
vpx_prob probs[/*n - 1*/],
const unsigned int counts[/*n - 1*/],
int n, vp9_writer *w) {
int n, vpx_writer *w) {
int i;
unsigned int branch_ct[32][2];
@ -77,32 +77,32 @@ static void prob_diff_update(const vpx_tree_index *tree,
}
static void write_selected_tx_size(const VP9_COMMON *cm,
const MACROBLOCKD *xd, vp9_writer *w) {
const MACROBLOCKD *xd, vpx_writer *w) {
TX_SIZE tx_size = xd->mi[0]->mbmi.tx_size;
BLOCK_SIZE bsize = xd->mi[0]->mbmi.sb_type;
const TX_SIZE max_tx_size = max_txsize_lookup[bsize];
const vpx_prob *const tx_probs = get_tx_probs2(max_tx_size, xd,
&cm->fc->tx_probs);
vp9_write(w, tx_size != TX_4X4, tx_probs[0]);
vpx_write(w, tx_size != TX_4X4, tx_probs[0]);
if (tx_size != TX_4X4 && max_tx_size >= TX_16X16) {
vp9_write(w, tx_size != TX_8X8, tx_probs[1]);
vpx_write(w, tx_size != TX_8X8, tx_probs[1]);
if (tx_size != TX_8X8 && max_tx_size >= TX_32X32)
vp9_write(w, tx_size != TX_16X16, tx_probs[2]);
vpx_write(w, tx_size != TX_16X16, tx_probs[2]);
}
}
static int write_skip(const VP9_COMMON *cm, const MACROBLOCKD *xd,
int segment_id, const MODE_INFO *mi, vp9_writer *w) {
int segment_id, const MODE_INFO *mi, vpx_writer *w) {
if (segfeature_active(&cm->seg, segment_id, SEG_LVL_SKIP)) {
return 1;
} else {
const int skip = mi->mbmi.skip;
vp9_write(w, skip, vp9_get_skip_prob(cm, xd));
vpx_write(w, skip, vp9_get_skip_prob(cm, xd));
return skip;
}
}
static void update_skip_probs(VP9_COMMON *cm, vp9_writer *w,
static void update_skip_probs(VP9_COMMON *cm, vpx_writer *w,
FRAME_COUNTS *counts) {
int k;
@ -110,7 +110,7 @@ static void update_skip_probs(VP9_COMMON *cm, vp9_writer *w,
vp9_cond_prob_diff_update(w, &cm->fc->skip_probs[k], counts->skip[k]);
}
static void update_switchable_interp_probs(VP9_COMMON *cm, vp9_writer *w,
static void update_switchable_interp_probs(VP9_COMMON *cm, vpx_writer *w,
FRAME_COUNTS *counts) {
int j;
for (j = 0; j < SWITCHABLE_FILTER_CONTEXTS; ++j)
@ -119,7 +119,7 @@ static void update_switchable_interp_probs(VP9_COMMON *cm, vp9_writer *w,
counts->switchable_interp[j], SWITCHABLE_FILTERS, w);
}
static void pack_mb_tokens(vp9_writer *w,
static void pack_mb_tokens(vpx_writer *w,
TOKENEXTRA **tp, const TOKENEXTRA *const stop,
vpx_bit_depth_t bit_depth) {
TOKENEXTRA *p = *tp;
@ -179,12 +179,12 @@ static void pack_mb_tokens(vp9_writer *w,
do {
const int bb = (v >> --n) & 1;
vp9_write(w, bb, pb[i >> 1]);
vpx_write(w, bb, pb[i >> 1]);
i = b->tree[i + bb];
} while (n);
}
vp9_write_bit(w, e & 1);
vpx_write_bit(w, e & 1);
}
++p;
}
@ -192,7 +192,7 @@ static void pack_mb_tokens(vp9_writer *w,
*tp = p + (p->token == EOSB_TOKEN);
}
static void write_segment_id(vp9_writer *w, const struct segmentation *seg,
static void write_segment_id(vpx_writer *w, const struct segmentation *seg,
int segment_id) {
if (seg->enabled && seg->update_map)
vp9_write_tree(w, vp9_segment_tree, seg->tree_probs, segment_id, 3, 0);
@ -200,7 +200,7 @@ static void write_segment_id(vp9_writer *w, const struct segmentation *seg,
// This function encodes the reference frame
static void write_ref_frames(const VP9_COMMON *cm, const MACROBLOCKD *xd,
vp9_writer *w) {
vpx_writer *w) {
const MB_MODE_INFO *const mbmi = &xd->mi[0]->mbmi;
const int is_compound = has_second_ref(mbmi);
const int segment_id = mbmi->segment_id;
@ -215,27 +215,27 @@ static void write_ref_frames(const VP9_COMMON *cm, const MACROBLOCKD *xd,
// does the feature use compound prediction or not
// (if not specified at the frame/segment level)
if (cm->reference_mode == REFERENCE_MODE_SELECT) {
vp9_write(w, is_compound, vp9_get_reference_mode_prob(cm, xd));
vpx_write(w, is_compound, vp9_get_reference_mode_prob(cm, xd));
} else {
assert(!is_compound == (cm->reference_mode == SINGLE_REFERENCE));
}
if (is_compound) {
vp9_write(w, mbmi->ref_frame[0] == GOLDEN_FRAME,
vpx_write(w, mbmi->ref_frame[0] == GOLDEN_FRAME,
vp9_get_pred_prob_comp_ref_p(cm, xd));
} else {
const int bit0 = mbmi->ref_frame[0] != LAST_FRAME;
vp9_write(w, bit0, vp9_get_pred_prob_single_ref_p1(cm, xd));
vpx_write(w, bit0, vp9_get_pred_prob_single_ref_p1(cm, xd));
if (bit0) {
const int bit1 = mbmi->ref_frame[0] != GOLDEN_FRAME;
vp9_write(w, bit1, vp9_get_pred_prob_single_ref_p2(cm, xd));
vpx_write(w, bit1, vp9_get_pred_prob_single_ref_p2(cm, xd));
}
}
}
}
static void pack_inter_mode_mvs(VP9_COMP *cpi, const MODE_INFO *mi,
vp9_writer *w) {
vpx_writer *w) {
VP9_COMMON *const cm = &cpi->common;
const nmv_context *nmvc = &cm->fc->nmvc;
const MACROBLOCK *const x = &cpi->td.mb;
@ -255,7 +255,7 @@ static void pack_inter_mode_mvs(VP9_COMP *cpi, const MODE_INFO *mi,
if (seg->temporal_update) {
const int pred_flag = mbmi->seg_id_predicted;
vpx_prob pred_prob = vp9_get_pred_prob_seg_id(seg, xd);
vp9_write(w, pred_flag, pred_prob);
vpx_write(w, pred_flag, pred_prob);
if (!pred_flag)
write_segment_id(w, seg, segment_id);
} else {
@ -266,7 +266,7 @@ static void pack_inter_mode_mvs(VP9_COMP *cpi, const MODE_INFO *mi,
skip = write_skip(cm, xd, segment_id, mi, w);
if (!segfeature_active(seg, segment_id, SEG_LVL_REF_FRAME))
vp9_write(w, is_inter, vp9_get_intra_inter_prob(cm, xd));
vpx_write(w, is_inter, vp9_get_intra_inter_prob(cm, xd));
if (bsize >= BLOCK_8X8 && cm->tx_mode == TX_MODE_SELECT &&
!(is_inter && skip)) {
@ -339,7 +339,7 @@ static void pack_inter_mode_mvs(VP9_COMP *cpi, const MODE_INFO *mi,
}
static void write_mb_modes_kf(const VP9_COMMON *cm, const MACROBLOCKD *xd,
MODE_INFO **mi_8x8, vp9_writer *w) {
MODE_INFO **mi_8x8, vpx_writer *w) {
const struct segmentation *const seg = &cm->seg;
const MODE_INFO *const mi = mi_8x8[0];
const MODE_INFO *const above_mi = xd->above_mi;
@ -375,7 +375,7 @@ static void write_mb_modes_kf(const VP9_COMMON *cm, const MACROBLOCKD *xd,
}
static void write_modes_b(VP9_COMP *cpi, const TileInfo *const tile,
vp9_writer *w, TOKENEXTRA **tok,
vpx_writer *w, TOKENEXTRA **tok,
const TOKENEXTRA *const tok_end,
int mi_row, int mi_col) {
const VP9_COMMON *const cm = &cpi->common;
@ -405,7 +405,7 @@ static void write_modes_b(VP9_COMP *cpi, const TileInfo *const tile,
static void write_partition(const VP9_COMMON *const cm,
const MACROBLOCKD *const xd,
int hbs, int mi_row, int mi_col,
PARTITION_TYPE p, BLOCK_SIZE bsize, vp9_writer *w) {
PARTITION_TYPE p, BLOCK_SIZE bsize, vpx_writer *w) {
const int ctx = partition_plane_context(xd, mi_row, mi_col, bsize);
const vpx_prob *const probs = xd->partition_probs[ctx];
const int has_rows = (mi_row + hbs) < cm->mi_rows;
@ -415,17 +415,17 @@ static void write_partition(const VP9_COMMON *const cm,
vp9_write_token(w, vp9_partition_tree, probs, &partition_encodings[p]);
} else if (!has_rows && has_cols) {
assert(p == PARTITION_SPLIT || p == PARTITION_HORZ);
vp9_write(w, p == PARTITION_SPLIT, probs[1]);
vpx_write(w, p == PARTITION_SPLIT, probs[1]);
} else if (has_rows && !has_cols) {
assert(p == PARTITION_SPLIT || p == PARTITION_VERT);
vp9_write(w, p == PARTITION_SPLIT, probs[2]);
vpx_write(w, p == PARTITION_SPLIT, probs[2]);
} else {
assert(p == PARTITION_SPLIT);
}
}
static void write_modes_sb(VP9_COMP *cpi,
const TileInfo *const tile, vp9_writer *w,
const TileInfo *const tile, vpx_writer *w,
TOKENEXTRA **tok, const TOKENEXTRA *const tok_end,
int mi_row, int mi_col, BLOCK_SIZE bsize) {
const VP9_COMMON *const cm = &cpi->common;
@ -483,7 +483,7 @@ static void write_modes_sb(VP9_COMP *cpi,
}
static void write_modes(VP9_COMP *cpi,
const TileInfo *const tile, vp9_writer *w,
const TileInfo *const tile, vpx_writer *w,
TOKENEXTRA **tok, const TOKENEXTRA *const tok_end) {
const VP9_COMMON *const cm = &cpi->common;
MACROBLOCKD *const xd = &cpi->td.mb.e_mbd;
@ -528,7 +528,7 @@ static void build_tree_distribution(VP9_COMP *cpi, TX_SIZE tx_size,
}
}
static void update_coef_probs_common(vp9_writer* const bc, VP9_COMP *cpi,
static void update_coef_probs_common(vpx_writer* const bc, VP9_COMP *cpi,
TX_SIZE tx_size,
vp9_coeff_stats *frame_branch_ct,
vp9_coeff_probs_model *new_coef_probs) {
@ -575,10 +575,10 @@ static void update_coef_probs_common(vp9_writer* const bc, VP9_COMP *cpi,
// printf("Update %d %d, savings %d\n", update[0], update[1], savings);
/* Is coef updated at all */
if (update[1] == 0 || savings < 0) {
vp9_write_bit(bc, 0);
vpx_write_bit(bc, 0);
return;
}
vp9_write_bit(bc, 1);
vpx_write_bit(bc, 1);
for (i = 0; i < PLANE_TYPES; ++i) {
for (j = 0; j < REF_TYPES; ++j) {
for (k = 0; k < COEF_BANDS; ++k) {
@ -600,7 +600,7 @@ static void update_coef_probs_common(vp9_writer* const bc, VP9_COMP *cpi,
*oldp, &newp, upd);
if (s > 0 && newp != *oldp)
u = 1;
vp9_write(bc, u, upd);
vpx_write(bc, u, upd);
if (u) {
/* send/use new probability */
vp9_write_prob_diff_update(bc, newp, *oldp);
@ -648,11 +648,11 @@ static void update_coef_probs_common(vp9_writer* const bc, VP9_COMP *cpi,
if (u == 1 && updates == 1) {
int v;
// first update
vp9_write_bit(bc, 1);
vpx_write_bit(bc, 1);
for (v = 0; v < noupdates_before_first; ++v)
vp9_write(bc, 0, upd);
vpx_write(bc, 0, upd);
}
vp9_write(bc, u, upd);
vpx_write(bc, u, upd);
if (u) {
/* send/use new probability */
vp9_write_prob_diff_update(bc, newp, *oldp);
@ -664,7 +664,7 @@ static void update_coef_probs_common(vp9_writer* const bc, VP9_COMP *cpi,
}
}
if (updates == 0) {
vp9_write_bit(bc, 0); // no updates
vpx_write_bit(bc, 0); // no updates
}
return;
}
@ -673,7 +673,7 @@ static void update_coef_probs_common(vp9_writer* const bc, VP9_COMP *cpi,
}
}
static void update_coef_probs(VP9_COMP *cpi, vp9_writer* w) {
static void update_coef_probs(VP9_COMP *cpi, vpx_writer* w) {
const TX_MODE tx_mode = cpi->common.tx_mode;
const TX_SIZE max_tx_size = tx_mode_to_biggest_tx_size[tx_mode];
TX_SIZE tx_size;
@ -682,7 +682,7 @@ static void update_coef_probs(VP9_COMP *cpi, vp9_writer* w) {
vp9_coeff_probs_model frame_coef_probs[PLANE_TYPES];
if (cpi->td.counts->tx.tx_totals[tx_size] <= 20 ||
(tx_size >= TX_16X16 && cpi->sf.tx_size_search_method == USE_TX_8X8)) {
vp9_write_bit(w, 0);
vpx_write_bit(w, 0);
} else {
build_tree_distribution(cpi, tx_size, frame_branch_ct,
frame_coef_probs);
@ -812,12 +812,12 @@ static void encode_segmentation(VP9_COMMON *cm, MACROBLOCKD *xd,
}
}
static void encode_txfm_probs(VP9_COMMON *cm, vp9_writer *w,
static void encode_txfm_probs(VP9_COMMON *cm, vpx_writer *w,
FRAME_COUNTS *counts) {
// Mode
vp9_write_literal(w, MIN(cm->tx_mode, ALLOW_32X32), 2);
vpx_write_literal(w, MIN(cm->tx_mode, ALLOW_32X32), 2);
if (cm->tx_mode >= ALLOW_32X32)
vp9_write_bit(w, cm->tx_mode == TX_MODE_SELECT);
vpx_write_bit(w, cm->tx_mode == TX_MODE_SELECT);
// Probabilities
if (cm->tx_mode == TX_MODE_SELECT) {
@ -928,7 +928,7 @@ static int get_refresh_mask(VP9_COMP *cpi) {
static size_t encode_tiles(VP9_COMP *cpi, uint8_t *data_ptr) {
VP9_COMMON *const cm = &cpi->common;
vp9_writer residual_bc;
vpx_writer residual_bc;
int tile_row, tile_col;
TOKENEXTRA *tok_end;
size_t total_size = 0;
@ -947,14 +947,14 @@ static size_t encode_tiles(VP9_COMP *cpi, uint8_t *data_ptr) {
cpi->tok_count[tile_row][tile_col];
if (tile_col < tile_cols - 1 || tile_row < tile_rows - 1)
vp9_start_encode(&residual_bc, data_ptr + total_size + 4);
vpx_start_encode(&residual_bc, data_ptr + total_size + 4);
else
vp9_start_encode(&residual_bc, data_ptr + total_size);
vpx_start_encode(&residual_bc, data_ptr + total_size);
write_modes(cpi, &cpi->tile_data[tile_idx].tile_info,
&residual_bc, &tok, tok_end);
assert(tok == tok_end);
vp9_stop_encode(&residual_bc);
vpx_stop_encode(&residual_bc);
if (tile_col < tile_cols - 1 || tile_row < tile_rows - 1) {
// size of this tile
mem_put_be32(data_ptr + total_size, residual_bc.pos);
@ -1155,9 +1155,9 @@ static size_t write_compressed_header(VP9_COMP *cpi, uint8_t *data) {
MACROBLOCKD *const xd = &cpi->td.mb.e_mbd;
FRAME_CONTEXT *const fc = cm->fc;
FRAME_COUNTS *counts = cpi->td.counts;
vp9_writer header_bc;
vpx_writer header_bc;
vp9_start_encode(&header_bc, data);
vpx_start_encode(&header_bc, data);
if (xd->lossless)
cm->tx_mode = ONLY_4X4;
@ -1185,9 +1185,9 @@ static size_t write_compressed_header(VP9_COMP *cpi, uint8_t *data) {
const int use_compound_pred = cm->reference_mode != SINGLE_REFERENCE;
const int use_hybrid_pred = cm->reference_mode == REFERENCE_MODE_SELECT;
vp9_write_bit(&header_bc, use_compound_pred);
vpx_write_bit(&header_bc, use_compound_pred);
if (use_compound_pred) {
vp9_write_bit(&header_bc, use_hybrid_pred);
vpx_write_bit(&header_bc, use_hybrid_pred);
if (use_hybrid_pred)
for (i = 0; i < COMP_INTER_CONTEXTS; i++)
vp9_cond_prob_diff_update(&header_bc, &fc->comp_inter_prob[i],
@ -1221,7 +1221,7 @@ static size_t write_compressed_header(VP9_COMP *cpi, uint8_t *data) {
&counts->mv);
}
vp9_stop_encode(&header_bc);
vpx_stop_encode(&header_bc);
assert(header_bc.pos <= 0xffff);
return header_bc.pos;

20
vp9/encoder/vp9_encodemv.c
Просмотреть файл

@ -29,7 +29,7 @@ void vp9_entropy_mv_init(void) {
vp9_tokens_from_tree(mv_fp_encodings, vp9_mv_fp_tree);
}
static void encode_mv_component(vp9_writer* w, int comp,
static void encode_mv_component(vpx_writer* w, int comp,
const nmv_component* mvcomp, int usehp) {
int offset;
const int sign = comp < 0;
@ -42,7 +42,7 @@ static void encode_mv_component(vp9_writer* w, int comp,
assert(comp != 0);
// Sign
vp9_write(w, sign, mvcomp->sign);
vpx_write(w, sign, mvcomp->sign);
// Class
vp9_write_token(w, vp9_mv_class_tree, mvcomp->classes,
@ -56,7 +56,7 @@ static void encode_mv_component(vp9_writer* w, int comp,
int i;
const int n = mv_class + CLASS0_BITS - 1; // number of bits
for (i = 0; i < n; ++i)
vp9_write(w, (d >> i) & 1, mvcomp->bits[i]);
vpx_write(w, (d >> i) & 1, mvcomp->bits[i]);
}
// Fractional bits
@ -66,7 +66,7 @@ static void encode_mv_component(vp9_writer* w, int comp,
// High precision bit
if (usehp)
vp9_write(w, hp,
vpx_write(w, hp,
mv_class == MV_CLASS_0 ? mvcomp->class0_hp : mvcomp->hp);
}
@ -133,15 +133,15 @@ static void build_nmv_component_cost_table(int *mvcost,
}
}
static int update_mv(vp9_writer *w, const unsigned int ct[2], vpx_prob *cur_p,
static int update_mv(vpx_writer *w, const unsigned int ct[2], vpx_prob *cur_p,
vpx_prob upd_p) {
const vpx_prob new_p = get_binary_prob(ct[0], ct[1]) | 1;
const int update = cost_branch256(ct, *cur_p) + vp9_cost_zero(upd_p) >
cost_branch256(ct, new_p) + vp9_cost_one(upd_p) + 7 * 256;
vp9_write(w, update, upd_p);
vpx_write(w, update, upd_p);
if (update) {
*cur_p = new_p;
vp9_write_literal(w, new_p >> 1, 7);
vpx_write_literal(w, new_p >> 1, 7);
}
return update;
}
@ -149,7 +149,7 @@ static int update_mv(vp9_writer *w, const unsigned int ct[2], vpx_prob *cur_p,
static void write_mv_update(const vpx_tree_index *tree,
vpx_prob probs[/*n - 1*/],
const unsigned int counts[/*n - 1*/],
int n, vp9_writer *w) {
int n, vpx_writer *w) {
int i;
unsigned int branch_ct[32][2];
@ -161,7 +161,7 @@ static void write_mv_update(const vpx_tree_index *tree,
update_mv(w, branch_ct[i], &probs[i], MV_UPDATE_PROB);
}
void vp9_write_nmv_probs(VP9_COMMON *cm, int usehp, vp9_writer *w,
void vp9_write_nmv_probs(VP9_COMMON *cm, int usehp, vpx_writer *w,
nmv_context_counts *const counts) {
int i, j;
nmv_context *const mvc = &cm->fc->nmvc;
@ -199,7 +199,7 @@ void vp9_write_nmv_probs(VP9_COMMON *cm, int usehp, vp9_writer *w,
}
}
void vp9_encode_mv(VP9_COMP* cpi, vp9_writer* w,
void vp9_encode_mv(VP9_COMP* cpi, vpx_writer* w,
const MV* mv, const MV* ref,
const nmv_context* mvctx, int usehp) {
const MV diff = {mv->row - ref->row,

4
vp9/encoder/vp9_encodemv.h
Просмотреть файл

@ -20,10 +20,10 @@ extern "C" {
void vp9_entropy_mv_init(void);
void vp9_write_nmv_probs(VP9_COMMON *cm, int usehp, vp9_writer *w,
void vp9_write_nmv_probs(VP9_COMMON *cm, int usehp, vpx_writer *w,
nmv_context_counts *const counts);
void vp9_encode_mv(VP9_COMP *cpi, vp9_writer* w, const MV* mv, const MV* ref,
void vp9_encode_mv(VP9_COMP *cpi, vpx_writer* w, const MV* mv, const MV* ref,
const nmv_context* mvctx, int usehp);
void vp9_build_nmv_cost_table(int *mvjoint, int *mvcost[2],

28
vp9/encoder/vp9_subexp.c
Просмотреть файл

@ -83,35 +83,35 @@ static int prob_diff_update_cost(vpx_prob newp, vpx_prob oldp) {
return update_bits[delp] * 256;
}
static void encode_uniform(vp9_writer *w, int v) {
static void encode_uniform(vpx_writer *w, int v) {
const int l = 8;
const int m = (1 << l) - 191;
if (v < m) {
vp9_write_literal(w, v, l - 1);
vpx_write_literal(w, v, l - 1);
} else {
vp9_write_literal(w, m + ((v - m) >> 1), l - 1);
vp9_write_literal(w, (v - m) & 1, 1);
vpx_write_literal(w, m + ((v - m) >> 1), l - 1);
vpx_write_literal(w, (v - m) & 1, 1);
}
}
static INLINE int write_bit_gte(vp9_writer *w, int word, int test) {
vp9_write_literal(w, word >= test, 1);
static INLINE int write_bit_gte(vpx_writer *w, int word, int test) {
vpx_write_literal(w, word >= test, 1);
return word >= test;
}
static void encode_term_subexp(vp9_writer *w, int word) {
static void encode_term_subexp(vpx_writer *w, int word) {
if (!write_bit_gte(w, word, 16)) {
vp9_write_literal(w, word, 4);
vpx_write_literal(w, word, 4);
} else if (!write_bit_gte(w, word, 32)) {
vp9_write_literal(w, word - 16, 4);
vpx_write_literal(w, word - 16, 4);
} else if (!write_bit_gte(w, word, 64)) {
vp9_write_literal(w, word - 32, 5);
vpx_write_literal(w, word - 32, 5);
} else {
encode_uniform(w, word - 64);
}
}
void vp9_write_prob_diff_update(vp9_writer *w, vpx_prob newp, vpx_prob oldp) {
void vp9_write_prob_diff_update(vpx_writer *w, vpx_prob newp, vpx_prob oldp) {
const int delp = remap_prob(newp, oldp);
encode_term_subexp(w, delp);
}
@ -196,7 +196,7 @@ int vp9_prob_diff_update_savings_search_model(const unsigned int *ct,
return bestsavings;
}
void vp9_cond_prob_diff_update(vp9_writer *w, vpx_prob *oldp,
void vp9_cond_prob_diff_update(vpx_writer *w, vpx_prob *oldp,
const unsigned int ct[2]) {
const vpx_prob upd = DIFF_UPDATE_PROB;
vpx_prob newp = get_binary_prob(ct[0], ct[1]);
@ -204,10 +204,10 @@ void vp9_cond_prob_diff_update(vp9_writer *w, vpx_prob *oldp,
upd);
assert(newp >= 1);
if (savings > 0) {
vp9_write(w, 1, upd);
vpx_write(w, 1, upd);
vp9_write_prob_diff_update(w, newp, *oldp);
*oldp = newp;
} else {
vp9_write(w, 0, upd);
vpx_write(w, 0, upd);
}
}

6
vp9/encoder/vp9_subexp.h
Просмотреть файл

@ -18,12 +18,12 @@ extern "C" {
#include "vpx_dsp/prob.h"
struct vp9_writer;
struct vpx_writer;
void vp9_write_prob_diff_update(struct vp9_writer *w,
void vp9_write_prob_diff_update(struct vpx_writer *w,
vpx_prob newp, vpx_prob oldp);
void vp9_cond_prob_diff_update(struct vp9_writer *w, vpx_prob *oldp,
void vp9_cond_prob_diff_update(struct vpx_writer *w, vpx_prob *oldp,
const unsigned int ct[2]);
int vp9_prob_diff_update_savings_search(const unsigned int *ct,

6
vp9/encoder/vp9_treewriter.h
Просмотреть файл

@ -28,17 +28,17 @@ struct vp9_token {
void vp9_tokens_from_tree(struct vp9_token*, const vpx_tree_index *);
static INLINE void vp9_write_tree(vp9_writer *w, const vpx_tree_index *tree,
static INLINE void vp9_write_tree(vpx_writer *w, const vpx_tree_index *tree,
const vpx_prob *probs, int bits, int len,
vpx_tree_index i) {
do {
const int bit = (bits >> --len) & 1;
vp9_write(w, bit, probs[i >> 1]);
vpx_write(w, bit, probs[i >> 1]);
i = tree[i + bit];
} while (len);
}
static INLINE void vp9_write_token(vp9_writer *w, const vpx_tree_index *tree,
static INLINE void vp9_write_token(vpx_writer *w, const vpx_tree_index *tree,
const vpx_prob *probs,
const struct vp9_token *token) {
vp9_write_tree(w, tree, probs, token->value, token->len, 0);

8
vpx_dsp/bitwriter.c
Просмотреть файл

@ -12,20 +12,20 @@
#include "./bitwriter.h"
void vp9_start_encode(vp9_writer *br, uint8_t *source) {
void vpx_start_encode(vpx_writer *br, uint8_t *source) {
br->lowvalue = 0;
br->range = 255;
br->count = -24;
br->buffer = source;
br->pos = 0;
vp9_write_bit(br, 0);
vpx_write_bit(br, 0);
}
void vp9_stop_encode(vp9_writer *br) {
void vpx_stop_encode(vpx_writer *br) {
int i;
for (i = 0; i < 32; i++)
vp9_write_bit(br, 0);
vpx_write_bit(br, 0);
// Ensure there's no ambigous collision with any index marker bytes
if ((br->buffer[br->pos - 1] & 0xe0) == 0xc0)

20
vpx_dsp/bitwriter.h
Просмотреть файл

@ -19,18 +19,18 @@
extern "C" {
#endif
typedef struct vp9_writer {
typedef struct vpx_writer {
unsigned int lowvalue;
unsigned int range;
int count;
unsigned int pos;
uint8_t *buffer;
} vp9_writer;
} vpx_writer;
void vp9_start_encode(vp9_writer *bc, uint8_t *buffer);
void vp9_stop_encode(vp9_writer *bc);
void vpx_start_encode(vpx_writer *bc, uint8_t *buffer);
void vpx_stop_encode(vpx_writer *bc);
static INLINE void vp9_write(vp9_writer *br, int bit, int probability) {
static INLINE void vpx_write(vpx_writer *br, int bit, int probability) {
unsigned int split;
int count = br->count;
unsigned int range = br->range;
@ -78,18 +78,18 @@ static INLINE void vp9_write(vp9_writer *br, int bit, int probability) {
br->range = range;
}
static INLINE void vp9_write_bit(vp9_writer *w, int bit) {
vp9_write(w, bit, 128); // vpx_prob_half
static INLINE void vpx_write_bit(vpx_writer *w, int bit) {
vpx_write(w, bit, 128); // vpx_prob_half
}
static INLINE void vp9_write_literal(vp9_writer *w, int data, int bits) {
static INLINE void vpx_write_literal(vpx_writer *w, int data, int bits) {
int bit;
for (bit = bits - 1; bit >= 0; bit--)
vp9_write_bit(w, 1 & (data >> bit));
vpx_write_bit(w, 1 & (data >> bit));
}
#define vp9_write_prob(w, v) vp9_write_literal((w), (v), 8)
#define vpx_write_prob(w, v) vpx_write_literal((w), (v), 8)
#ifdef __cplusplus
} // extern "C"