| /* |
| * 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. |
| */ |
| |
| |
| #include "header.h" |
| #include "encodemv.h" |
| #include "entropymode.h" |
| #include "findnearmv.h" |
| #include "mcomp.h" |
| #include "systemdependent.h" |
| #include <assert.h> |
| #include <stdio.h> |
| #include "pragmas.h" |
| #include "vpx_mem/vpx_mem.h" |
| #include "bitstream.h" |
| |
| const int vp8cx_base_skip_false_prob[128] = |
| { |
| 255, 255, 255, 255, 255, 255, 255, 255, |
| 255, 255, 255, 255, 255, 255, 255, 255, |
| 255, 255, 255, 255, 255, 255, 255, 255, |
| 255, 255, 255, 255, 255, 255, 255, 255, |
| 255, 255, 255, 255, 255, 255, 255, 255, |
| 255, 255, 255, 255, 255, 255, 255, 255, |
| 255, 255, 255, 255, 255, 255, 255, 255, |
| 251, 248, 244, 240, 236, 232, 229, 225, |
| 221, 217, 213, 208, 204, 199, 194, 190, |
| 187, 183, 179, 175, 172, 168, 164, 160, |
| 157, 153, 149, 145, 142, 138, 134, 130, |
| 127, 124, 120, 117, 114, 110, 107, 104, |
| 101, 98, 95, 92, 89, 86, 83, 80, |
| 77, 74, 71, 68, 65, 62, 59, 56, |
| 53, 50, 47, 44, 41, 38, 35, 32, |
| 30, 28, 26, 24, 22, 20, 18, 16, |
| }; |
| #ifdef VP8REF |
| #define __int64 long long |
| #endif |
| |
| #if defined(SECTIONBITS_OUTPUT) |
| unsigned __int64 Sectionbits[500]; |
| #endif |
| |
| #ifdef ENTROPY_STATS |
| int intra_mode_stats[10][10][10]; |
| static unsigned int tree_update_hist [BLOCK_TYPES] [COEF_BANDS] [PREV_COEF_CONTEXTS] [vp8_coef_tokens-1] [2]; |
| extern unsigned int active_section; |
| #endif |
| |
| #ifdef MODE_STATS |
| int count_mb_seg[4] = { 0, 0, 0, 0 }; |
| #endif |
| |
| #if CONFIG_BIG_ENDIAN |
| # define make_endian_16(a) \ |
| (((unsigned int)(a & 0xff)) << 8) | (((unsigned int)(a & 0xff00)) >> 8) |
| # define make_endian_32(a) \ |
| (((unsigned int)(a & 0xff)) << 24) | (((unsigned int)(a & 0xff00)) << 8) | \ |
| (((unsigned int)(a & 0xff0000)) >> 8) | (((unsigned int)(a & 0xff000000)) >> 24) |
| #else |
| # define make_endian_16(a) a |
| # define make_endian_32(a) a |
| #endif |
| |
| static void update_mode( |
| vp8_writer *const w, |
| int n, |
| vp8_token tok [/* n */], |
| vp8_tree tree, |
| vp8_prob Pnew [/* n-1 */], |
| vp8_prob Pcur [/* n-1 */], |
| unsigned int bct [/* n-1 */] [2], |
| const unsigned int num_events[/* n */] |
| ) |
| { |
| unsigned int new_b = 0, old_b = 0; |
| int i = 0; |
| |
| vp8_tree_probs_from_distribution( |
| n--, tok, tree, |
| Pnew, bct, num_events, |
| 256, 1 |
| ); |
| |
| do |
| { |
| new_b += vp8_cost_branch(bct[i], Pnew[i]); |
| old_b += vp8_cost_branch(bct[i], Pcur[i]); |
| } |
| while (++i < n); |
| |
| if (new_b + (n << 8) < old_b) |
| { |
| int i = 0; |
| |
| vp8_write_bit(w, 1); |
| |
| do |
| { |
| const vp8_prob p = Pnew[i]; |
| |
| vp8_write_literal(w, Pcur[i] = p ? p : 1, 8); |
| } |
| while (++i < n); |
| } |
| else |
| vp8_write_bit(w, 0); |
| } |
| |
| static void update_mbintra_mode_probs(VP8_COMP *cpi) |
| { |
| VP8_COMMON *const x = & cpi->common; |
| |
| vp8_writer *const w = & cpi->bc; |
| |
| { |
| vp8_prob Pnew [VP8_YMODES-1]; |
| unsigned int bct [VP8_YMODES-1] [2]; |
| |
| update_mode( |
| w, VP8_YMODES, vp8_ymode_encodings, vp8_ymode_tree, |
| Pnew, x->fc.ymode_prob, bct, (unsigned int *)cpi->ymode_count |
| ); |
| } |
| { |
| vp8_prob Pnew [VP8_UV_MODES-1]; |
| unsigned int bct [VP8_UV_MODES-1] [2]; |
| |
| update_mode( |
| w, VP8_UV_MODES, vp8_uv_mode_encodings, vp8_uv_mode_tree, |
| Pnew, x->fc.uv_mode_prob, bct, (unsigned int *)cpi->uv_mode_count |
| ); |
| } |
| } |
| |
| static void write_ymode(vp8_writer *bc, int m, const vp8_prob *p) |
| { |
| vp8_write_token(bc, vp8_ymode_tree, p, vp8_ymode_encodings + m); |
| } |
| |
| static void kfwrite_ymode(vp8_writer *bc, int m, const vp8_prob *p) |
| { |
| vp8_write_token(bc, vp8_kf_ymode_tree, p, vp8_kf_ymode_encodings + m); |
| } |
| |
| static void write_uv_mode(vp8_writer *bc, int m, const vp8_prob *p) |
| { |
| vp8_write_token(bc, vp8_uv_mode_tree, p, vp8_uv_mode_encodings + m); |
| } |
| |
| |
| static void write_bmode(vp8_writer *bc, int m, const vp8_prob *p) |
| { |
| vp8_write_token(bc, vp8_bmode_tree, p, vp8_bmode_encodings + m); |
| } |
| |
| static void write_split(vp8_writer *bc, int x) |
| { |
| vp8_write_token( |
| bc, vp8_mbsplit_tree, vp8_mbsplit_probs, vp8_mbsplit_encodings + x |
| ); |
| } |
| |
| static const unsigned int norm[256] = |
| { |
| 0, 7, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, |
| 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, |
| 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 |
| }; |
| |
| static void pack_tokens_c(vp8_writer *w, const TOKENEXTRA *p, int xcount) |
| { |
| const TOKENEXTRA *const stop = p + xcount; |
| unsigned int split; |
| unsigned int shift; |
| int count = w->count; |
| unsigned int range = w->range; |
| unsigned int lowvalue = w->lowvalue; |
| |
| while (p < stop) |
| { |
| const int t = p->Token; |
| vp8_token *const a = vp8_coef_encodings + t; |
| const vp8_extra_bit_struct *const b = vp8_extra_bits + t; |
| int i = 0; |
| const unsigned char *pp = p->context_tree; |
| int v = a->value; |
| int n = a->Len; |
| |
| if (p->skip_eob_node) |
| { |
| n--; |
| i = 2; |
| } |
| |
| do |
| { |
| const int bb = (v >> --n) & 1; |
| split = 1 + (((range - 1) * pp[i>>1]) >> 8); |
| i = vp8_coef_tree[i+bb]; |
| |
| if (bb) |
| { |
| lowvalue += split; |
| range = range - split; |
| } |
| else |
| { |
| range = split; |
| } |
| |
| shift = norm[range]; |
| range <<= shift; |
| count += shift; |
| |
| if (count >= 0) |
| { |
| int offset = shift - count; |
| |
| if ((lowvalue << (offset - 1)) & 0x80000000) |
| { |
| int x = w->pos - 1; |
| |
| while (x >= 0 && w->buffer[x] == 0xff) |
| { |
| w->buffer[x] = (unsigned char)0; |
| x--; |
| } |
| |
| w->buffer[x] += 1; |
| } |
| |
| w->buffer[w->pos++] = (lowvalue >> (24 - offset)); |
| lowvalue <<= offset; |
| shift = count; |
| lowvalue &= 0xffffff; |
| count -= 8 ; |
| } |
| |
| lowvalue <<= shift; |
| } |
| while (n); |
| |
| |
| if (b->base_val) |
| { |
| const int e = p->Extra, L = b->Len; |
| |
| if (L) |
| { |
| const unsigned char *pp = b->prob; |
| int v = e >> 1; |
| int n = L; /* number of bits in v, assumed nonzero */ |
| int i = 0; |
| |
| do |
| { |
| const int bb = (v >> --n) & 1; |
| split = 1 + (((range - 1) * pp[i>>1]) >> 8); |
| i = b->tree[i+bb]; |
| |
| if (bb) |
| { |
| lowvalue += split; |
| range = range - split; |
| } |
| else |
| { |
| range = split; |
| } |
| |
| shift = norm[range]; |
| range <<= shift; |
| count += shift; |
| |
| if (count >= 0) |
| { |
| int offset = shift - count; |
| |
| if ((lowvalue << (offset - 1)) & 0x80000000) |
| { |
| int x = w->pos - 1; |
| |
| while (x >= 0 && w->buffer[x] == 0xff) |
| { |
| w->buffer[x] = (unsigned char)0; |
| x--; |
| } |
| |
| w->buffer[x] += 1; |
| } |
| |
| w->buffer[w->pos++] = (lowvalue >> (24 - offset)); |
| lowvalue <<= offset; |
| shift = count; |
| lowvalue &= 0xffffff; |
| count -= 8 ; |
| } |
| |
| lowvalue <<= shift; |
| } |
| while (n); |
| } |
| |
| |
| { |
| |
| split = (range + 1) >> 1; |
| |
| if (e & 1) |
| { |
| lowvalue += split; |
| range = range - split; |
| } |
| else |
| { |
| range = split; |
| } |
| |
| range <<= 1; |
| |
| if ((lowvalue & 0x80000000)) |
| { |
| int x = w->pos - 1; |
| |
| while (x >= 0 && w->buffer[x] == 0xff) |
| { |
| w->buffer[x] = (unsigned char)0; |
| x--; |
| } |
| |
| w->buffer[x] += 1; |
| |
| } |
| |
| lowvalue <<= 1; |
| |
| if (!++count) |
| { |
| count = -8; |
| w->buffer[w->pos++] = (lowvalue >> 24); |
| lowvalue &= 0xffffff; |
| } |
| } |
| |
| } |
| |
| ++p; |
| } |
| |
| w->count = count; |
| w->lowvalue = lowvalue; |
| w->range = range; |
| |
| } |
| |
| static void write_partition_size(unsigned char *cx_data, int size) |
| { |
| signed char csize; |
| |
| csize = size & 0xff; |
| *cx_data = csize; |
| csize = (size >> 8) & 0xff; |
| *(cx_data + 1) = csize; |
| csize = (size >> 16) & 0xff; |
| *(cx_data + 2) = csize; |
| |
| } |
| |
| static void pack_tokens_into_partitions_c(VP8_COMP *cpi, unsigned char *cx_data, int num_part, int *size) |
| { |
| |
| int i; |
| unsigned char *ptr = cx_data; |
| unsigned int shift; |
| vp8_writer *w = &cpi->bc2; |
| *size = 3 * (num_part - 1); |
| ptr = cx_data + (*size); |
| |
| for (i = 0; i < num_part; i++) |
| { |
| vp8_start_encode(w, ptr); |
| { |
| unsigned int split; |
| int count = w->count; |
| unsigned int range = w->range; |
| unsigned int lowvalue = w->lowvalue; |
| int mb_row; |
| |
| for (mb_row = i; mb_row < cpi->common.mb_rows; mb_row += num_part) |
| { |
| TOKENEXTRA *p = cpi->tplist[mb_row].start; |
| TOKENEXTRA *stop = cpi->tplist[mb_row].stop; |
| |
| while (p < stop) |
| { |
| const int t = p->Token; |
| vp8_token *const a = vp8_coef_encodings + t; |
| const vp8_extra_bit_struct *const b = vp8_extra_bits + t; |
| int i = 0; |
| const unsigned char *pp = p->context_tree; |
| int v = a->value; |
| int n = a->Len; |
| |
| if (p->skip_eob_node) |
| { |
| n--; |
| i = 2; |
| } |
| |
| do |
| { |
| const int bb = (v >> --n) & 1; |
| split = 1 + (((range - 1) * pp[i>>1]) >> 8); |
| i = vp8_coef_tree[i+bb]; |
| |
| if (bb) |
| { |
| lowvalue += split; |
| range = range - split; |
| } |
| else |
| { |
| range = split; |
| } |
| |
| shift = norm[range]; |
| range <<= shift; |
| count += shift; |
| |
| if (count >= 0) |
| { |
| int offset = shift - count; |
| |
| if ((lowvalue << (offset - 1)) & 0x80000000) |
| { |
| int x = w->pos - 1; |
| |
| while (x >= 0 && w->buffer[x] == 0xff) |
| { |
| w->buffer[x] = (unsigned char)0; |
| x--; |
| } |
| |
| w->buffer[x] += 1; |
| } |
| |
| w->buffer[w->pos++] = (lowvalue >> (24 - offset)); |
| lowvalue <<= offset; |
| shift = count; |
| lowvalue &= 0xffffff; |
| count -= 8 ; |
| } |
| |
| lowvalue <<= shift; |
| } |
| while (n); |
| |
| |
| if (b->base_val) |
| { |
| const int e = p->Extra, L = b->Len; |
| |
| if (L) |
| { |
| const unsigned char *pp = b->prob; |
| int v = e >> 1; |
| int n = L; /* number of bits in v, assumed nonzero */ |
| int i = 0; |
| |
| do |
| { |
| const int bb = (v >> --n) & 1; |
| split = 1 + (((range - 1) * pp[i>>1]) >> 8); |
| i = b->tree[i+bb]; |
| |
| if (bb) |
| { |
| lowvalue += split; |
| range = range - split; |
| } |
| else |
| { |
| range = split; |
| } |
| |
| shift = norm[range]; |
| range <<= shift; |
| count += shift; |
| |
| if (count >= 0) |
| { |
| int offset = shift - count; |
| |
| if ((lowvalue << (offset - 1)) & 0x80000000) |
| { |
| int x = w->pos - 1; |
| |
| while (x >= 0 && w->buffer[x] == 0xff) |
| { |
| w->buffer[x] = (unsigned char)0; |
| x--; |
| } |
| |
| w->buffer[x] += 1; |
| } |
| |
| w->buffer[w->pos++] = (lowvalue >> (24 - offset)); |
| lowvalue <<= offset; |
| shift = count; |
| lowvalue &= 0xffffff; |
| count -= 8 ; |
| } |
| |
| lowvalue <<= shift; |
| } |
| while (n); |
| } |
| |
| { |
| split = (range + 1) >> 1; |
| |
| if (e & 1) |
| { |
| lowvalue += split; |
| range = range - split; |
| } |
| else |
| { |
| range = split; |
| } |
| |
| range <<= 1; |
| |
| if ((lowvalue & 0x80000000)) |
| { |
| int x = w->pos - 1; |
| |
| while (x >= 0 && w->buffer[x] == 0xff) |
| { |
| w->buffer[x] = (unsigned char)0; |
| x--; |
| } |
| |
| w->buffer[x] += 1; |
| |
| } |
| |
| lowvalue <<= 1; |
| |
| if (!++count) |
| { |
| count = -8; |
| w->buffer[w->pos++] = (lowvalue >> 24); |
| lowvalue &= 0xffffff; |
| } |
| } |
| |
| } |
| |
| ++p; |
| } |
| } |
| |
| w->count = count; |
| w->lowvalue = lowvalue; |
| w->range = range; |
| |
| } |
| |
| vp8_stop_encode(w); |
| *size += w->pos; |
| |
| if (i < (num_part - 1)) |
| { |
| write_partition_size(cx_data, w->pos); |
| cx_data += 3; |
| ptr += w->pos; |
| } |
| } |
| } |
| |
| |
| static void pack_mb_row_tokens_c(VP8_COMP *cpi, vp8_writer *w) |
| { |
| |
| unsigned int split; |
| int count = w->count; |
| unsigned int range = w->range; |
| unsigned int lowvalue = w->lowvalue; |
| unsigned int shift; |
| int mb_row; |
| |
| for (mb_row = 0; mb_row < cpi->common.mb_rows; mb_row++) |
| { |
| TOKENEXTRA *p = cpi->tplist[mb_row].start; |
| TOKENEXTRA *stop = cpi->tplist[mb_row].stop; |
| |
| while (p < stop) |
| { |
| const int t = p->Token; |
| vp8_token *const a = vp8_coef_encodings + t; |
| const vp8_extra_bit_struct *const b = vp8_extra_bits + t; |
| int i = 0; |
| const unsigned char *pp = p->context_tree; |
| int v = a->value; |
| int n = a->Len; |
| |
| if (p->skip_eob_node) |
| { |
| n--; |
| i = 2; |
| } |
| |
| do |
| { |
| const int bb = (v >> --n) & 1; |
| split = 1 + (((range - 1) * pp[i>>1]) >> 8); |
| i = vp8_coef_tree[i+bb]; |
| |
| if (bb) |
| { |
| lowvalue += split; |
| range = range - split; |
| } |
| else |
| { |
| range = split; |
| } |
| |
| shift = norm[range]; |
| range <<= shift; |
| count += shift; |
| |
| if (count >= 0) |
| { |
| int offset = shift - count; |
| |
| if ((lowvalue << (offset - 1)) & 0x80000000) |
| { |
| int x = w->pos - 1; |
| |
| while (x >= 0 && w->buffer[x] == 0xff) |
| { |
| w->buffer[x] = (unsigned char)0; |
| x--; |
| } |
| |
| w->buffer[x] += 1; |
| } |
| |
| w->buffer[w->pos++] = (lowvalue >> (24 - offset)); |
| lowvalue <<= offset; |
| shift = count; |
| lowvalue &= 0xffffff; |
| count -= 8 ; |
| } |
| |
| lowvalue <<= shift; |
| } |
| while (n); |
| |
| |
| if (b->base_val) |
| { |
| const int e = p->Extra, L = b->Len; |
| |
| if (L) |
| { |
| const unsigned char *pp = b->prob; |
| int v = e >> 1; |
| int n = L; /* number of bits in v, assumed nonzero */ |
| int i = 0; |
| |
| do |
| { |
| const int bb = (v >> --n) & 1; |
| split = 1 + (((range - 1) * pp[i>>1]) >> 8); |
| i = b->tree[i+bb]; |
| |
| if (bb) |
| { |
| lowvalue += split; |
| range = range - split; |
| } |
| else |
| { |
| range = split; |
| } |
| |
| shift = norm[range]; |
| range <<= shift; |
| count += shift; |
| |
| if (count >= 0) |
| { |
| int offset = shift - count; |
| |
| if ((lowvalue << (offset - 1)) & 0x80000000) |
| { |
| int x = w->pos - 1; |
| |
| while (x >= 0 && w->buffer[x] == 0xff) |
| { |
| w->buffer[x] = (unsigned char)0; |
| x--; |
| } |
| |
| w->buffer[x] += 1; |
| } |
| |
| w->buffer[w->pos++] = (lowvalue >> (24 - offset)); |
| lowvalue <<= offset; |
| shift = count; |
| lowvalue &= 0xffffff; |
| count -= 8 ; |
| } |
| |
| lowvalue <<= shift; |
| } |
| while (n); |
| } |
| |
| { |
| split = (range + 1) >> 1; |
| |
| if (e & 1) |
| { |
| lowvalue += split; |
| range = range - split; |
| } |
| else |
| { |
| range = split; |
| } |
| |
| range <<= 1; |
| |
| if ((lowvalue & 0x80000000)) |
| { |
| int x = w->pos - 1; |
| |
| while (x >= 0 && w->buffer[x] == 0xff) |
| { |
| w->buffer[x] = (unsigned char)0; |
| x--; |
| } |
| |
| w->buffer[x] += 1; |
| |
| } |
| |
| lowvalue <<= 1; |
| |
| if (!++count) |
| { |
| count = -8; |
| w->buffer[w->pos++] = (lowvalue >> 24); |
| lowvalue &= 0xffffff; |
| } |
| } |
| |
| } |
| |
| ++p; |
| } |
| } |
| |
| w->count = count; |
| w->lowvalue = lowvalue; |
| w->range = range; |
| |
| } |
| |
| static void write_mv_ref |
| ( |
| vp8_writer *w, MB_PREDICTION_MODE m, const vp8_prob *p |
| ) |
| { |
| |
| assert(NEARESTMV <= m && m <= SPLITMV); |
| |
| vp8_write_token(w, vp8_mv_ref_tree, p, |
| vp8_mv_ref_encoding_array - NEARESTMV + m); |
| } |
| |
| static void write_sub_mv_ref |
| ( |
| vp8_writer *w, B_PREDICTION_MODE m, const vp8_prob *p |
| ) |
| { |
| assert(LEFT4X4 <= m && m <= NEW4X4); |
| |
| vp8_write_token(w, vp8_sub_mv_ref_tree, p, |
| vp8_sub_mv_ref_encoding_array - LEFT4X4 + m); |
| } |
| |
| static void write_mv |
| ( |
| vp8_writer *w, const MV *mv, const MV *ref, const MV_CONTEXT *mvc |
| ) |
| { |
| MV e; |
| e.row = mv->row - ref->row; |
| e.col = mv->col - ref->col; |
| |
| vp8_encode_motion_vector(w, &e, mvc); |
| } |
| |
| static void write_mb_features(vp8_writer *w, const MB_MODE_INFO *mi, const MACROBLOCKD *x) |
| { |
| // Encode the MB segment id. |
| if (x->segmentation_enabled && x->update_mb_segmentation_map) |
| { |
| switch (mi->segment_id) |
| { |
| case 0: |
| vp8_write(w, 0, x->mb_segment_tree_probs[0]); |
| vp8_write(w, 0, x->mb_segment_tree_probs[1]); |
| break; |
| case 1: |
| vp8_write(w, 0, x->mb_segment_tree_probs[0]); |
| vp8_write(w, 1, x->mb_segment_tree_probs[1]); |
| break; |
| case 2: |
| vp8_write(w, 1, x->mb_segment_tree_probs[0]); |
| vp8_write(w, 0, x->mb_segment_tree_probs[2]); |
| break; |
| case 3: |
| vp8_write(w, 1, x->mb_segment_tree_probs[0]); |
| vp8_write(w, 1, x->mb_segment_tree_probs[2]); |
| break; |
| |
| // TRAP.. This should not happen |
| default: |
| vp8_write(w, 0, x->mb_segment_tree_probs[0]); |
| vp8_write(w, 0, x->mb_segment_tree_probs[1]); |
| break; |
| } |
| } |
| } |
| |
| |
| static void pack_inter_mode_mvs(VP8_COMP *const cpi) |
| { |
| VP8_COMMON *const pc = & cpi->common; |
| vp8_writer *const w = & cpi->bc; |
| const MV_CONTEXT *mvc = pc->fc.mvc; |
| |
| const int *const rfct = cpi->count_mb_ref_frame_usage; |
| const int rf_intra = rfct[INTRA_FRAME]; |
| const int rf_inter = rfct[LAST_FRAME] + rfct[GOLDEN_FRAME] + rfct[ALTREF_FRAME]; |
| |
| MODE_INFO *m = pc->mi, *ms; |
| const int mis = pc->mode_info_stride; |
| int mb_row = -1; |
| |
| int prob_last_coded; |
| int prob_gf_coded; |
| int prob_skip_false = 0; |
| ms = pc->mi - 1; |
| |
| cpi->mb.partition_info = cpi->mb.pi; |
| |
| // Calculate the probabilities to be used to code the reference frame based on actual useage this frame |
| if (!(cpi->prob_intra_coded = rf_intra * 255 / (rf_intra + rf_inter))) |
| cpi->prob_intra_coded = 1; |
| |
| prob_last_coded = rf_inter ? (rfct[LAST_FRAME] * 255) / rf_inter : 128; |
| |
| if (!prob_last_coded) |
| prob_last_coded = 1; |
| |
| prob_gf_coded = (rfct[GOLDEN_FRAME] + rfct[ALTREF_FRAME]) |
| ? (rfct[GOLDEN_FRAME] * 255) / (rfct[GOLDEN_FRAME] + rfct[ALTREF_FRAME]) : 128; |
| |
| if (!prob_gf_coded) |
| prob_gf_coded = 1; |
| |
| |
| #ifdef ENTROPY_STATS |
| active_section = 1; |
| #endif |
| |
| if (pc->mb_no_coeff_skip) |
| { |
| prob_skip_false = cpi->skip_false_count * 256 / (cpi->skip_false_count + cpi->skip_true_count); |
| |
| if (prob_skip_false <= 1) |
| prob_skip_false = 1; |
| |
| if (prob_skip_false > 255) |
| prob_skip_false = 255; |
| |
| cpi->prob_skip_false = prob_skip_false; |
| vp8_write_literal(w, prob_skip_false, 8); |
| } |
| |
| vp8_write_literal(w, cpi->prob_intra_coded, 8); |
| vp8_write_literal(w, prob_last_coded, 8); |
| vp8_write_literal(w, prob_gf_coded, 8); |
| |
| update_mbintra_mode_probs(cpi); |
| |
| vp8_write_mvprobs(cpi); |
| |
| while (++mb_row < pc->mb_rows) |
| { |
| int mb_col = -1; |
| |
| while (++mb_col < pc->mb_cols) |
| { |
| const MB_MODE_INFO *const mi = & m->mbmi; |
| const MV_REFERENCE_FRAME rf = mi->ref_frame; |
| const MB_PREDICTION_MODE mode = mi->mode; |
| |
| MACROBLOCKD *xd = &cpi->mb.e_mbd; |
| |
| // Distance of Mb to the various image edges. |
| // These specified to 8th pel as they are always compared to MV values that are in 1/8th pel units |
| xd->mb_to_left_edge = -((mb_col * 16) << 3); |
| xd->mb_to_right_edge = ((pc->mb_cols - 1 - mb_col) * 16) << 3; |
| xd->mb_to_top_edge = -((mb_row * 16)) << 3; |
| xd->mb_to_bottom_edge = ((pc->mb_rows - 1 - mb_row) * 16) << 3; |
| |
| #ifdef ENTROPY_STATS |
| active_section = 9; |
| #endif |
| |
| if (cpi->mb.e_mbd.update_mb_segmentation_map) |
| write_mb_features(w, mi, &cpi->mb.e_mbd); |
| |
| if (pc->mb_no_coeff_skip) |
| vp8_encode_bool(w, m->mbmi.mb_skip_coeff, prob_skip_false); |
| |
| if (rf == INTRA_FRAME) |
| { |
| vp8_write(w, 0, cpi->prob_intra_coded); |
| #ifdef ENTROPY_STATS |
| active_section = 6; |
| #endif |
| write_ymode(w, mode, pc->fc.ymode_prob); |
| |
| if (mode == B_PRED) |
| { |
| int j = 0; |
| |
| do |
| write_bmode(w, m->bmi[j].mode, pc->fc.bmode_prob); |
| |
| while (++j < 16); |
| } |
| |
| write_uv_mode(w, mi->uv_mode, pc->fc.uv_mode_prob); |
| } |
| else /* inter coded */ |
| { |
| MV best_mv; |
| vp8_prob mv_ref_p [VP8_MVREFS-1]; |
| |
| vp8_write(w, 1, cpi->prob_intra_coded); |
| |
| if (rf == LAST_FRAME) |
| vp8_write(w, 0, prob_last_coded); |
| else |
| { |
| vp8_write(w, 1, prob_last_coded); |
| vp8_write(w, (rf == GOLDEN_FRAME) ? 0 : 1, prob_gf_coded); |
| } |
| |
| { |
| MV n1, n2; |
| int ct[4]; |
| |
| vp8_find_near_mvs(xd, m, &n1, &n2, &best_mv, ct, rf, cpi->common.ref_frame_sign_bias); |
| vp8_mv_ref_probs(mv_ref_p, ct); |
| |
| #ifdef ENTROPY_STATS |
| accum_mv_refs(mode, ct); |
| #endif |
| |
| } |
| |
| #ifdef ENTROPY_STATS |
| active_section = 3; |
| #endif |
| |
| write_mv_ref(w, mode, mv_ref_p); |
| |
| switch (mode) /* new, split require MVs */ |
| { |
| case NEWMV: |
| |
| #ifdef ENTROPY_STATS |
| active_section = 5; |
| #endif |
| |
| write_mv(w, &mi->mv.as_mv, &best_mv, mvc); |
| break; |
| |
| case SPLITMV: |
| { |
| int j = 0; |
| |
| #ifdef MODE_STATS |
| ++count_mb_seg [mi->partitioning]; |
| #endif |
| |
| write_split(w, mi->partitioning); |
| |
| do |
| { |
| const B_MODE_INFO *const b = cpi->mb.partition_info->bmi + j; |
| const int *const L = vp8_mbsplits [mi->partitioning]; |
| int k = -1; /* first block in subset j */ |
| int mv_contz; |
| |
| while (j != L[++k]) |
| if (k >= 16) |
| assert(0); |
| |
| mv_contz = vp8_mv_cont |
| (&(vp8_left_bmi(m, k)->mv.as_mv), |
| &(vp8_above_bmi(m, k, mis)->mv.as_mv)); |
| write_sub_mv_ref(w, b->mode, vp8_sub_mv_ref_prob2 [mv_contz]); //pc->fc.sub_mv_ref_prob); |
| |
| if (b->mode == NEW4X4) |
| { |
| #ifdef ENTROPY_STATS |
| active_section = 11; |
| #endif |
| write_mv(w, &b->mv.as_mv, &best_mv, (const MV_CONTEXT *) mvc); |
| } |
| } |
| while (++j < cpi->mb.partition_info->count); |
| } |
| break; |
| default: |
| break; |
| } |
| } |
| |
| ++m; |
| cpi->mb.partition_info++; |
| } |
| |
| ++m; /* skip L prediction border */ |
| cpi->mb.partition_info++; |
| } |
| } |
| |
| |
| static void write_kfmodes(VP8_COMP *cpi) |
| { |
| vp8_writer *const bc = & cpi->bc; |
| const VP8_COMMON *const c = & cpi->common; |
| /* const */ |
| MODE_INFO *m = c->mi; |
| |
| int mb_row = -1; |
| int prob_skip_false = 0; |
| |
| if (c->mb_no_coeff_skip) |
| { |
| prob_skip_false = cpi->skip_false_count * 256 / (cpi->skip_false_count + cpi->skip_true_count); |
| |
| if (prob_skip_false <= 1) |
| prob_skip_false = 1; |
| |
| if (prob_skip_false >= 255) |
| prob_skip_false = 255; |
| |
| cpi->prob_skip_false = prob_skip_false; |
| vp8_write_literal(bc, prob_skip_false, 8); |
| } |
| |
| while (++mb_row < c->mb_rows) |
| { |
| int mb_col = -1; |
| |
| while (++mb_col < c->mb_cols) |
| { |
| const int ym = m->mbmi.mode; |
| |
| if (cpi->mb.e_mbd.update_mb_segmentation_map) |
| write_mb_features(bc, &m->mbmi, &cpi->mb.e_mbd); |
| |
| if (c->mb_no_coeff_skip) |
| vp8_encode_bool(bc, m->mbmi.mb_skip_coeff, prob_skip_false); |
| |
| kfwrite_ymode(bc, ym, c->kf_ymode_prob); |
| |
| if (ym == B_PRED) |
| { |
| const int mis = c->mode_info_stride; |
| int i = 0; |
| |
| do |
| { |
| const B_PREDICTION_MODE A = vp8_above_bmi(m, i, mis)->mode; |
| const B_PREDICTION_MODE L = vp8_left_bmi(m, i)->mode; |
| const int bm = m->bmi[i].mode; |
| |
| #ifdef ENTROPY_STATS |
| ++intra_mode_stats [A] [L] [bm]; |
| #endif |
| |
| write_bmode(bc, bm, c->kf_bmode_prob [A] [L]); |
| } |
| while (++i < 16); |
| } |
| |
| write_uv_mode(bc, (m++)->mbmi.uv_mode, c->kf_uv_mode_prob); |
| } |
| |
| m++; // skip L prediction border |
| } |
| } |
| int vp8_estimate_entropy_savings(VP8_COMP *cpi) |
| { |
| int i = 0; |
| int savings = 0; |
| |
| const int *const rfct = cpi->count_mb_ref_frame_usage; |
| const int rf_intra = rfct[INTRA_FRAME]; |
| const int rf_inter = rfct[LAST_FRAME] + rfct[GOLDEN_FRAME] + rfct[ALTREF_FRAME]; |
| int new_intra, new_last, gf_last, oldtotal, newtotal; |
| int ref_frame_cost[MAX_REF_FRAMES]; |
| |
| vp8_clear_system_state(); //__asm emms; |
| |
| if (cpi->common.frame_type != KEY_FRAME) |
| { |
| if (!(new_intra = rf_intra * 255 / (rf_intra + rf_inter))) |
| new_intra = 1; |
| |
| new_last = rf_inter ? (rfct[LAST_FRAME] * 255) / rf_inter : 128; |
| |
| gf_last = (rfct[GOLDEN_FRAME] + rfct[ALTREF_FRAME]) |
| ? (rfct[GOLDEN_FRAME] * 255) / (rfct[GOLDEN_FRAME] + rfct[ALTREF_FRAME]) : 128; |
| |
| // new costs |
| ref_frame_cost[INTRA_FRAME] = vp8_cost_zero(new_intra); |
| ref_frame_cost[LAST_FRAME] = vp8_cost_one(new_intra) |
| + vp8_cost_zero(new_last); |
| ref_frame_cost[GOLDEN_FRAME] = vp8_cost_one(new_intra) |
| + vp8_cost_one(new_last) |
| + vp8_cost_zero(gf_last); |
| ref_frame_cost[ALTREF_FRAME] = vp8_cost_one(new_intra) |
| + vp8_cost_one(new_last) |
| + vp8_cost_one(gf_last); |
| |
| newtotal = |
| rfct[INTRA_FRAME] * ref_frame_cost[INTRA_FRAME] + |
| rfct[LAST_FRAME] * ref_frame_cost[LAST_FRAME] + |
| rfct[GOLDEN_FRAME] * ref_frame_cost[GOLDEN_FRAME] + |
| rfct[ALTREF_FRAME] * ref_frame_cost[ALTREF_FRAME]; |
| |
| |
| // old costs |
| ref_frame_cost[INTRA_FRAME] = vp8_cost_zero(cpi->prob_intra_coded); |
| ref_frame_cost[LAST_FRAME] = vp8_cost_one(cpi->prob_intra_coded) |
| + vp8_cost_zero(cpi->prob_last_coded); |
| ref_frame_cost[GOLDEN_FRAME] = vp8_cost_one(cpi->prob_intra_coded) |
| + vp8_cost_one(cpi->prob_last_coded) |
| + vp8_cost_zero(cpi->prob_gf_coded); |
| ref_frame_cost[ALTREF_FRAME] = vp8_cost_one(cpi->prob_intra_coded) |
| + vp8_cost_one(cpi->prob_last_coded) |
| + vp8_cost_one(cpi->prob_gf_coded); |
| |
| oldtotal = |
| rfct[INTRA_FRAME] * ref_frame_cost[INTRA_FRAME] + |
| rfct[LAST_FRAME] * ref_frame_cost[LAST_FRAME] + |
| rfct[GOLDEN_FRAME] * ref_frame_cost[GOLDEN_FRAME] + |
| rfct[ALTREF_FRAME] * ref_frame_cost[ALTREF_FRAME]; |
| |
| savings += (oldtotal - newtotal) / 256; |
| } |
| |
| |
| do |
| { |
| int j = 0; |
| |
| do |
| { |
| int k = 0; |
| |
| do |
| { |
| /* at every context */ |
| |
| /* calc probs and branch cts for this frame only */ |
| //vp8_prob new_p [vp8_coef_tokens-1]; |
| //unsigned int branch_ct [vp8_coef_tokens-1] [2]; |
| |
| int t = 0; /* token/prob index */ |
| |
| vp8_tree_probs_from_distribution( |
| vp8_coef_tokens, vp8_coef_encodings, vp8_coef_tree, |
| cpi->frame_coef_probs [i][j][k], cpi->frame_branch_ct [i][j][k], cpi->coef_counts [i][j][k], |
| 256, 1 |
| ); |
| |
| do |
| { |
| const unsigned int *ct = cpi->frame_branch_ct [i][j][k][t]; |
| const vp8_prob newp = cpi->frame_coef_probs [i][j][k][t]; |
| |
| const vp8_prob old = cpi->common.fc.coef_probs [i][j][k][t]; |
| const vp8_prob upd = vp8_coef_update_probs [i][j][k][t]; |
| |
| const int old_b = vp8_cost_branch(ct, old); |
| const int new_b = vp8_cost_branch(ct, newp); |
| |
| const int update_b = 8 + |
| ((vp8_cost_one(upd) - vp8_cost_zero(upd)) >> 8); |
| |
| const int s = old_b - new_b - update_b; |
| |
| if (s > 0) |
| savings += s; |
| |
| |
| } |
| while (++t < vp8_coef_tokens - 1); |
| |
| |
| } |
| while (++k < PREV_COEF_CONTEXTS); |
| } |
| while (++j < COEF_BANDS); |
| } |
| while (++i < BLOCK_TYPES); |
| |
| return savings; |
| } |
| |
| static void update_coef_probs(VP8_COMP *cpi) |
| { |
| int i = 0; |
| vp8_writer *const w = & cpi->bc; |
| int savings = 0; |
| |
| vp8_clear_system_state(); //__asm emms; |
| |
| |
| do |
| { |
| int j = 0; |
| |
| do |
| { |
| int k = 0; |
| |
| do |
| { |
| //note: use result from vp8_estimate_entropy_savings, so no need to call vp8_tree_probs_from_distribution here. |
| /* at every context */ |
| |
| /* calc probs and branch cts for this frame only */ |
| //vp8_prob new_p [vp8_coef_tokens-1]; |
| //unsigned int branch_ct [vp8_coef_tokens-1] [2]; |
| |
| int t = 0; /* token/prob index */ |
| |
| //vp8_tree_probs_from_distribution( |
| // vp8_coef_tokens, vp8_coef_encodings, vp8_coef_tree, |
| // new_p, branch_ct, (unsigned int *)cpi->coef_counts [i][j][k], |
| // 256, 1 |
| // ); |
| |
| do |
| { |
| const unsigned int *ct = cpi->frame_branch_ct [i][j][k][t]; |
| const vp8_prob newp = cpi->frame_coef_probs [i][j][k][t]; |
| |
| vp8_prob *Pold = cpi->common.fc.coef_probs [i][j][k] + t; |
| const vp8_prob old = *Pold; |
| const vp8_prob upd = vp8_coef_update_probs [i][j][k][t]; |
| |
| const int old_b = vp8_cost_branch(ct, old); |
| const int new_b = vp8_cost_branch(ct, newp); |
| |
| const int update_b = 8 + |
| ((vp8_cost_one(upd) - vp8_cost_zero(upd)) >> 8); |
| |
| const int s = old_b - new_b - update_b; |
| const int u = s > 0 ? 1 : 0; |
| |
| vp8_write(w, u, upd); |
| |
| |
| #ifdef ENTROPY_STATS |
| ++ tree_update_hist [i][j][k][t] [u]; |
| #endif |
| |
| if (u) |
| { |
| /* send/use new probability */ |
| |
| *Pold = newp; |
| vp8_write_literal(w, newp, 8); |
| |
| savings += s; |
| |
| } |
| |
| } |
| while (++t < vp8_coef_tokens - 1); |
| |
| /* Accum token counts for generation of default statistics */ |
| #ifdef ENTROPY_STATS |
| t = 0; |
| |
| do |
| { |
| context_counters [i][j][k][t] += cpi->coef_counts [i][j][k][t]; |
| } |
| while (++t < vp8_coef_tokens); |
| |
| #endif |
| |
| } |
| while (++k < PREV_COEF_CONTEXTS); |
| } |
| while (++j < COEF_BANDS); |
| } |
| while (++i < BLOCK_TYPES); |
| |
| } |
| #ifdef PACKET_TESTING |
| FILE *vpxlogc = 0; |
| #endif |
| |
| static void put_delta_q(vp8_writer *bc, int delta_q) |
| { |
| if (delta_q != 0) |
| { |
| vp8_write_bit(bc, 1); |
| vp8_write_literal(bc, abs(delta_q), 4); |
| |
| if (delta_q < 0) |
| vp8_write_bit(bc, 1); |
| else |
| vp8_write_bit(bc, 0); |
| } |
| else |
| vp8_write_bit(bc, 0); |
| } |
| |
| void vp8_pack_bitstream(VP8_COMP *cpi, unsigned char *dest, unsigned long *size) |
| { |
| int i, j; |
| VP8_HEADER oh; |
| VP8_COMMON *const pc = & cpi->common; |
| vp8_writer *const bc = & cpi->bc; |
| MACROBLOCKD *const xd = & cpi->mb.e_mbd; |
| int extra_bytes_packed = 0; |
| |
| unsigned char *cx_data = dest; |
| const int *mb_feature_data_bits; |
| |
| oh.show_frame = (int) pc->show_frame; |
| oh.type = (int)pc->frame_type; |
| oh.version = pc->version; |
| |
| mb_feature_data_bits = vp8_mb_feature_data_bits; |
| cx_data += 3; |
| |
| #if defined(SECTIONBITS_OUTPUT) |
| Sectionbits[active_section = 1] += sizeof(VP8_HEADER) * 8 * 256; |
| #endif |
| |
| //vp8_kf_default_bmode_probs() is called in vp8_setup_key_frame() once for each |
| //K frame before encode frame. pc->kf_bmode_prob doesn't get changed anywhere |
| //else. No need to call it again here. --yw |
| //vp8_kf_default_bmode_probs( pc->kf_bmode_prob); |
| |
| // every keyframe send startcode, width, height, scale factor, clamp and color type |
| if (oh.type == KEY_FRAME) |
| { |
| // Start / synch code |
| cx_data[0] = 0x9D; |
| cx_data[1] = 0x01; |
| cx_data[2] = 0x2a; |
| |
| *((unsigned short *)(cx_data + 3)) = make_endian_16((pc->horiz_scale << 14) | pc->Width); |
| *((unsigned short *)(cx_data + 5)) = make_endian_16((pc->vert_scale << 14) | pc->Height); |
| |
| extra_bytes_packed = 7; |
| cx_data += extra_bytes_packed ; |
| |
| vp8_start_encode(bc, cx_data); |
| |
| // signal clr type |
| vp8_write_bit(bc, pc->clr_type); |
| vp8_write_bit(bc, pc->clamp_type); |
| |
| } |
| else |
| vp8_start_encode(bc, cx_data); |
| |
| |
| // Signal whether or not Segmentation is enabled |
| vp8_write_bit(bc, (xd->segmentation_enabled) ? 1 : 0); |
| |
| // Indicate which features are enabled |
| if (xd->segmentation_enabled) |
| { |
| // Signal whether or not the segmentation map is being updated. |
| vp8_write_bit(bc, (xd->update_mb_segmentation_map) ? 1 : 0); |
| vp8_write_bit(bc, (xd->update_mb_segmentation_data) ? 1 : 0); |
| |
| if (xd->update_mb_segmentation_data) |
| { |
| signed char Data; |
| |
| vp8_write_bit(bc, (xd->mb_segement_abs_delta) ? 1 : 0); |
| |
| // For each segmentation feature (Quant and loop filter level) |
| for (i = 0; i < MB_LVL_MAX; i++) |
| { |
| // For each of the segments |
| for (j = 0; j < MAX_MB_SEGMENTS; j++) |
| { |
| Data = xd->segment_feature_data[i][j]; |
| |
| // Frame level data |
| if (Data) |
| { |
| vp8_write_bit(bc, 1); |
| |
| if (Data < 0) |
| { |
| Data = - Data; |
| vp8_write_literal(bc, Data, mb_feature_data_bits[i]); |
| vp8_write_bit(bc, 1); |
| } |
| else |
| { |
| vp8_write_literal(bc, Data, mb_feature_data_bits[i]); |
| vp8_write_bit(bc, 0); |
| } |
| } |
| else |
| vp8_write_bit(bc, 0); |
| } |
| } |
| } |
| |
| if (xd->update_mb_segmentation_map) |
| { |
| // Write the probs used to decode the segment id for each macro block. |
| for (i = 0; i < MB_FEATURE_TREE_PROBS; i++) |
| { |
| int Data = xd->mb_segment_tree_probs[i]; |
| |
| if (Data != 255) |
| { |
| vp8_write_bit(bc, 1); |
| vp8_write_literal(bc, Data, 8); |
| } |
| else |
| vp8_write_bit(bc, 0); |
| } |
| } |
| } |
| |
| // Code to determine whether or not to update the scan order. |
| vp8_write_bit(bc, pc->filter_type); |
| vp8_write_literal(bc, pc->filter_level, 6); |
| vp8_write_literal(bc, pc->sharpness_level, 3); |
| |
| // Write out loop filter deltas applied at the MB level based on mode or ref frame (if they are enabled). |
| vp8_write_bit(bc, (xd->mode_ref_lf_delta_enabled) ? 1 : 0); |
| |
| if (xd->mode_ref_lf_delta_enabled) |
| { |
| // Do the deltas need to be updated |
| vp8_write_bit(bc, (xd->mode_ref_lf_delta_update) ? 1 : 0); |
| |
| if (xd->mode_ref_lf_delta_update) |
| { |
| int Data; |
| |
| // Send update |
| for (i = 0; i < MAX_REF_LF_DELTAS; i++) |
| { |
| Data = xd->ref_lf_deltas[i]; |
| |
| // Frame level data |
| if (Data) |
| { |
| vp8_write_bit(bc, 1); |
| |
| if (Data > 0) |
| { |
| vp8_write_literal(bc, (Data & 0x3F), 6); |
| vp8_write_bit(bc, 0); // sign |
| } |
| else |
| { |
| Data = -Data; |
| vp8_write_literal(bc, (Data & 0x3F), 6); |
| vp8_write_bit(bc, 1); // sign |
| } |
| } |
| else |
| vp8_write_bit(bc, 0); |
| } |
| |
| // Send update |
| for (i = 0; i < MAX_MODE_LF_DELTAS; i++) |
| { |
| Data = xd->mode_lf_deltas[i]; |
| |
| if (Data) |
| { |
| vp8_write_bit(bc, 1); |
| |
| if (Data > 0) |
| { |
| vp8_write_literal(bc, (Data & 0x3F), 6); |
| vp8_write_bit(bc, 0); // sign |
| } |
| else |
| { |
| Data = -Data; |
| vp8_write_literal(bc, (Data & 0x3F), 6); |
| vp8_write_bit(bc, 1); // sign |
| } |
| } |
| else |
| vp8_write_bit(bc, 0); |
| } |
| } |
| } |
| |
| //signal here is multi token partition is enabled |
| vp8_write_literal(bc, pc->multi_token_partition, 2); |
| |
| // Frame Qbaseline quantizer index |
| vp8_write_literal(bc, pc->base_qindex, 7); |
| |
| // Transmit Dc, Second order and Uv quantizer delta information |
| put_delta_q(bc, pc->y1dc_delta_q); |
| put_delta_q(bc, pc->y2dc_delta_q); |
| put_delta_q(bc, pc->y2ac_delta_q); |
| put_delta_q(bc, pc->uvdc_delta_q); |
| put_delta_q(bc, pc->uvac_delta_q); |
| |
| // When there is a key frame all reference buffers are updated using the new key frame |
| if (pc->frame_type != KEY_FRAME) |
| { |
| // Should the GF or ARF be updated using the transmitted frame or buffer |
| vp8_write_bit(bc, pc->refresh_golden_frame); |
| vp8_write_bit(bc, pc->refresh_alt_ref_frame); |
| |
| // If not being updated from current frame should either GF or ARF be updated from another buffer |
| if (!pc->refresh_golden_frame) |
| vp8_write_literal(bc, pc->copy_buffer_to_gf, 2); |
| |
| if (!pc->refresh_alt_ref_frame) |
| vp8_write_literal(bc, pc->copy_buffer_to_arf, 2); |
| |
| // Indicate reference frame sign bias for Golden and ARF frames (always 0 for last frame buffer) |
| vp8_write_bit(bc, pc->ref_frame_sign_bias[GOLDEN_FRAME]); |
| vp8_write_bit(bc, pc->ref_frame_sign_bias[ALTREF_FRAME]); |
| } |
| |
| vp8_write_bit(bc, pc->refresh_entropy_probs); |
| |
| if (pc->frame_type != KEY_FRAME) |
| vp8_write_bit(bc, pc->refresh_last_frame); |
| |
| #ifdef ENTROPY_STATS |
| |
| if (pc->frame_type == INTER_FRAME) |
| active_section = 0; |
| else |
| active_section = 7; |
| |
| #endif |
| |
| vp8_clear_system_state(); //__asm emms; |
| |
| //************************************************ |
| // save a copy for later refresh |
| { |
| vpx_memcpy(&cpi->common.lfc, &cpi->common.fc, sizeof(cpi->common.fc)); |
| } |
| |
| update_coef_probs(cpi); |
| |
| #ifdef ENTROPY_STATS |
| active_section = 2; |
| #endif |
| |
| // Write out the mb_no_coeff_skip flag |
| vp8_write_bit(bc, pc->mb_no_coeff_skip); |
| |
| if (pc->frame_type == KEY_FRAME) |
| { |
| write_kfmodes(cpi); |
| |
| #ifdef ENTROPY_STATS |
| active_section = 8; |
| #endif |
| } |
| else |
| { |
| pack_inter_mode_mvs(cpi); |
| |
| #ifdef ENTROPY_STATS |
| active_section = 1; |
| #endif |
| } |
| |
| vp8_stop_encode(bc); |
| |
| |
| if (pc->multi_token_partition != ONE_PARTITION) |
| { |
| int num_part; |
| int asize; |
| num_part = 1 << pc->multi_token_partition; |
| |
| pack_tokens_into_partitions(cpi, cx_data + bc->pos, num_part, &asize); |
| |
| oh.first_partition_length_in_bytes = cpi->bc.pos; |
| |
| *size = cpi->bc.pos + VP8_HEADER_SIZE + asize + extra_bytes_packed; |
| } |
| else |
| { |
| vp8_start_encode(&cpi->bc2, cx_data + bc->pos); |
| |
| if (!cpi->b_multi_threaded) |
| pack_tokens(&cpi->bc2, cpi->tok, cpi->tok_count); |
| else |
| pack_mb_row_tokens(cpi, &cpi->bc2); |
| |
| vp8_stop_encode(&cpi->bc2); |
| oh.first_partition_length_in_bytes = cpi->bc.pos ; |
| *size = cpi->bc2.pos + cpi->bc.pos + VP8_HEADER_SIZE + extra_bytes_packed; |
| } |
| |
| #if CONFIG_BIG_ENDIAN |
| { |
| int v = (oh.first_partition_length_in_bytes << 5) | |
| (oh.show_frame << 4) | |
| (oh.version << 1) | |
| oh.type; |
| |
| v = make_endian_32(v); |
| vpx_memcpy(dest, &v, 3); |
| } |
| #else |
| vpx_memcpy(dest, &oh, 3); |
| #endif |
| } |
| |
| #ifdef ENTROPY_STATS |
| void print_tree_update_probs() |
| { |
| int i, j, k, l; |
| FILE *f = fopen("context.c", "a"); |
| int Sum; |
| fprintf(f, "\n/* Update probabilities for token entropy tree. */\n\n"); |
| fprintf(f, "const vp8_prob tree_update_probs[BLOCK_TYPES] [COEF_BANDS] [PREV_COEF_CONTEXTS] [vp8_coef_tokens-1] = {\n"); |
| |
| for (i = 0; i < BLOCK_TYPES; i++) |
| { |
| fprintf(f, " { \n"); |
| |
| for (j = 0; j < COEF_BANDS; j++) |
| { |
| fprintf(f, " {\n"); |
| |
| for (k = 0; k < PREV_COEF_CONTEXTS; k++) |
| { |
| fprintf(f, " {"); |
| |
| for (l = 0; l < MAX_ENTROPY_TOKENS - 1; l++) |
| { |
| Sum = tree_update_hist[i][j][k][l][0] + tree_update_hist[i][j][k][l][1]; |
| |
| if (Sum > 0) |
| { |
| if (((tree_update_hist[i][j][k][l][0] * 255) / Sum) > 0) |
| fprintf(f, "%3ld, ", (tree_update_hist[i][j][k][l][0] * 255) / Sum); |
| else |
| fprintf(f, "%3ld, ", 1); |
| } |
| else |
| fprintf(f, "%3ld, ", 128); |
| } |
| |
| fprintf(f, "},\n"); |
| } |
| |
| fprintf(f, " },\n"); |
| } |
| |
| fprintf(f, " },\n"); |
| } |
| |
| fprintf(f, "};\n"); |
| fclose(f); |
| } |
| #endif |
