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Imported Debian version 2.4.3~trusty1
[deb_ffmpeg.git] / ffmpeg / libavcodec / hevc_filter.c
CommitLineData
2ba45a60
DM		 1/*
2 * HEVC video decoder
3 *
4 * Copyright (C) 2012 - 2013 Guillaume Martres
5 * Copyright (C) 2013 Seppo Tomperi
6 * Copyright (C) 2013 Wassim Hamidouche
7 *
8 * This file is part of FFmpeg.
9 *
10 * FFmpeg is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU Lesser General Public
12 * License as published by the Free Software Foundation; either
13 * version 2.1 of the License, or (at your option) any later version.
14 *
15 * FFmpeg is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * Lesser General Public License for more details.
19 *
20 * You should have received a copy of the GNU Lesser General Public
21 * License along with FFmpeg; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 */
24
25#include "libavutil/common.h"
26#include "libavutil/internal.h"
27
28#include "cabac_functions.h"
29#include "golomb.h"
30#include "hevc.h"
31
32#include "bit_depth_template.c"
33
34#define LUMA 0
35#define CB 1
36#define CR 2
37
38static const uint8_t tctable[54] = {
39 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, // QP 0...18
40 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, // QP 19...37
41 5, 5, 6, 6, 7, 8, 9, 10, 11, 13, 14, 16, 18, 20, 22, 24 // QP 38...53
42};
43
44static const uint8_t betatable[52] = {
45 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 6, 7, 8, // QP 0...18
46 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, // QP 19...37
47 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62, 64 // QP 38...51
48};
49
50static int chroma_tc(HEVCContext *s, int qp_y, int c_idx, int tc_offset)
51{
52 static const int qp_c[] = {
53 29, 30, 31, 32, 33, 33, 34, 34, 35, 35, 36, 36, 37, 37
54 };
55 int qp, qp_i, offset, idxt;
56
57 // slice qp offset is not used for deblocking
58 if (c_idx == 1)
59 offset = s->pps->cb_qp_offset;
60 else
61 offset = s->pps->cr_qp_offset;
62
63 qp_i = av_clip(qp_y + offset, 0, 57);
64 if (s->sps->chroma_format_idc == 1) {
65 if (qp_i < 30)
66 qp = qp_i;
67 else if (qp_i > 43)
68 qp = qp_i - 6;
69 else
70 qp = qp_c[qp_i - 30];
71 } else {
72 qp = av_clip(qp_i, 0, 51);
73 }
74
75 idxt = av_clip(qp + DEFAULT_INTRA_TC_OFFSET + tc_offset, 0, 53);
76 return tctable[idxt];
77}
78
79static int get_qPy_pred(HEVCContext *s, int xBase, int yBase, int log2_cb_size)
80{
81 HEVCLocalContext *lc = s->HEVClc;
82 int ctb_size_mask = (1 << s->sps->log2_ctb_size) - 1;
83 int MinCuQpDeltaSizeMask = (1 << (s->sps->log2_ctb_size -
84 s->pps->diff_cu_qp_delta_depth)) - 1;
85 int xQgBase = xBase - (xBase & MinCuQpDeltaSizeMask);
86 int yQgBase = yBase - (yBase & MinCuQpDeltaSizeMask);
87 int min_cb_width = s->sps->min_cb_width;
88 int x_cb = xQgBase >> s->sps->log2_min_cb_size;
89 int y_cb = yQgBase >> s->sps->log2_min_cb_size;
90 int availableA = (xBase & ctb_size_mask) &&
91 (xQgBase & ctb_size_mask);
92 int availableB = (yBase & ctb_size_mask) &&
93 (yQgBase & ctb_size_mask);
94 int qPy_pred, qPy_a, qPy_b;
95
96 // qPy_pred
97 if (lc->first_qp_group || (!xQgBase && !yQgBase)) {
98 lc->first_qp_group = !lc->tu.is_cu_qp_delta_coded;
99 qPy_pred = s->sh.slice_qp;
100 } else {
101 qPy_pred = lc->qPy_pred;
102 }
103
104 // qPy_a
105 if (availableA == 0)
106 qPy_a = qPy_pred;
107 else
108 qPy_a = s->qp_y_tab[(x_cb - 1) + y_cb * min_cb_width];
109
110 // qPy_b
111 if (availableB == 0)
112 qPy_b = qPy_pred;
113 else
114 qPy_b = s->qp_y_tab[x_cb + (y_cb - 1) * min_cb_width];
115
116 av_assert2(qPy_a >= -s->sps->qp_bd_offset && qPy_a < 52);
117 av_assert2(qPy_b >= -s->sps->qp_bd_offset && qPy_b < 52);
118
119 return (qPy_a + qPy_b + 1) >> 1;
120}
121
122void ff_hevc_set_qPy(HEVCContext *s, int xBase, int yBase, int log2_cb_size)
123{
124 int qp_y = get_qPy_pred(s, xBase, yBase, log2_cb_size);
125
126 if (s->HEVClc->tu.cu_qp_delta != 0) {
127 int off = s->sps->qp_bd_offset;
128 s->HEVClc->qp_y = FFUMOD(qp_y + s->HEVClc->tu.cu_qp_delta + 52 + 2 * off,
129 52 + off) - off;
130 } else
131 s->HEVClc->qp_y = qp_y;
132}
133
134static int get_qPy(HEVCContext *s, int xC, int yC)
135{
136 int log2_min_cb_size = s->sps->log2_min_cb_size;
137 int x = xC >> log2_min_cb_size;
138 int y = yC >> log2_min_cb_size;
139 return s->qp_y_tab[x + y * s->sps->min_cb_width];
140}
141
142static void copy_CTB(uint8_t *dst, uint8_t *src,
143 int width, int height, int stride_dst, int stride_src)
144{
145 int i;
146
147 for (i = 0; i < height; i++) {
148 memcpy(dst, src, width);
149 dst += stride_dst;
150 src += stride_src;
151 }
152}
153
154static void restore_tqb_pixels(HEVCContext *s, int x0, int y0, int width, int height, int c_idx)
155{
156 if ( s->pps->transquant_bypass_enable_flag ||
157 (s->sps->pcm.loop_filter_disable_flag && s->sps->pcm_enabled_flag)) {
158 int x, y;
159 ptrdiff_t stride_dst = s->sao_frame->linesize[c_idx];
160 ptrdiff_t stride_src = s->frame->linesize[c_idx];
161 int min_pu_size = 1 << s->sps->log2_min_pu_size;
162 int hshift = s->sps->hshift[c_idx];
163 int vshift = s->sps->vshift[c_idx];
164 int x_min = ((x0 ) >> s->sps->log2_min_pu_size);
165 int y_min = ((y0 ) >> s->sps->log2_min_pu_size);
166 int x_max = ((x0 + width ) >> s->sps->log2_min_pu_size);
167 int y_max = ((y0 + height) >> s->sps->log2_min_pu_size);
168 int len = min_pu_size >> hshift;
169 for (y = y_min; y < y_max; y++) {
170 for (x = x_min; x < x_max; x++) {
171 if (s->is_pcm[y * s->sps->min_pu_width + x]) {
172 int n;
173 uint8_t *src = &s->frame->data[c_idx][ ((y << s->sps->log2_min_pu_size) >> vshift) * stride_src + (((x << s->sps->log2_min_pu_size) >> hshift) << s->sps->pixel_shift)];
174 uint8_t *dst = &s->sao_frame->data[c_idx][((y << s->sps->log2_min_pu_size) >> vshift) * stride_dst + (((x << s->sps->log2_min_pu_size) >> hshift) << s->sps->pixel_shift)];
175 for (n = 0; n < (min_pu_size >> vshift); n++) {
176 memcpy(src, dst, len);
177 src += stride_src;
178 dst += stride_dst;
179 }
180 }
181 }
182 }
183 }
184}
185
186#define CTB(tab, x, y) ((tab)[(y) * s->sps->ctb_width + (x)])
187
188static void sao_filter_CTB(HEVCContext *s, int x, int y)
189{
190 int c_idx;
191 int edges[4]; // 0 left 1 top 2 right 3 bottom
192 int x_ctb = x >> s->sps->log2_ctb_size;
193 int y_ctb = y >> s->sps->log2_ctb_size;
194 int ctb_addr_rs = y_ctb * s->sps->ctb_width + x_ctb;
195 int ctb_addr_ts = s->pps->ctb_addr_rs_to_ts[ctb_addr_rs];
196 SAOParams *sao = &CTB(s->sao, x_ctb, y_ctb);
197 // flags indicating unfilterable edges
198 uint8_t vert_edge[] = { 0, 0 };
199 uint8_t horiz_edge[] = { 0, 0 };
200 uint8_t diag_edge[] = { 0, 0, 0, 0 };
201 uint8_t lfase = CTB(s->filter_slice_edges, x_ctb, y_ctb);
202 uint8_t no_tile_filter = s->pps->tiles_enabled_flag &&
203 !s->pps->loop_filter_across_tiles_enabled_flag;
204 uint8_t restore = no_tile_filter || !lfase;
205 uint8_t left_tile_edge = 0;
206 uint8_t right_tile_edge = 0;
207 uint8_t up_tile_edge = 0;
208 uint8_t bottom_tile_edge = 0;
209
210 edges[0] = x_ctb == 0;
211 edges[1] = y_ctb == 0;
212 edges[2] = x_ctb == s->sps->ctb_width - 1;
213 edges[3] = y_ctb == s->sps->ctb_height - 1;
214
215 if (restore) {
216 if (!edges[0]) {
217 left_tile_edge = no_tile_filter && s->pps->tile_id[ctb_addr_ts] != s->pps->tile_id[s->pps->ctb_addr_rs_to_ts[ctb_addr_rs-1]];
218 vert_edge[0] = (!lfase && CTB(s->tab_slice_address, x_ctb, y_ctb) != CTB(s->tab_slice_address, x_ctb - 1, y_ctb)) || left_tile_edge;
219 }
220 if (!edges[2]) {
221 right_tile_edge = no_tile_filter && s->pps->tile_id[ctb_addr_ts] != s->pps->tile_id[s->pps->ctb_addr_rs_to_ts[ctb_addr_rs+1]];
222 vert_edge[1] = (!lfase && CTB(s->tab_slice_address, x_ctb, y_ctb) != CTB(s->tab_slice_address, x_ctb + 1, y_ctb)) || right_tile_edge;
223 }
224 if (!edges[1]) {
225 up_tile_edge = no_tile_filter && s->pps->tile_id[ctb_addr_ts] != s->pps->tile_id[s->pps->ctb_addr_rs_to_ts[ctb_addr_rs - s->sps->ctb_width]];
226 horiz_edge[0] = (!lfase && CTB(s->tab_slice_address, x_ctb, y_ctb) != CTB(s->tab_slice_address, x_ctb, y_ctb - 1)) || up_tile_edge;
227 }
228 if (!edges[3]) {
229 bottom_tile_edge = no_tile_filter && s->pps->tile_id[ctb_addr_ts] != s->pps->tile_id[s->pps->ctb_addr_rs_to_ts[ctb_addr_rs + s->sps->ctb_width]];
230 horiz_edge[1] = (!lfase && CTB(s->tab_slice_address, x_ctb, y_ctb) != CTB(s->tab_slice_address, x_ctb, y_ctb + 1)) || bottom_tile_edge;
231 }
232 if (!edges[0] && !edges[1]) {
233 diag_edge[0] = (!lfase && CTB(s->tab_slice_address, x_ctb, y_ctb) != CTB(s->tab_slice_address, x_ctb - 1, y_ctb - 1)) || left_tile_edge || up_tile_edge;
234 }
235 if (!edges[1] && !edges[2]) {
236 diag_edge[1] = (!lfase && CTB(s->tab_slice_address, x_ctb, y_ctb) != CTB(s->tab_slice_address, x_ctb + 1, y_ctb - 1)) || right_tile_edge || up_tile_edge;
237 }
238 if (!edges[2] && !edges[3]) {
239 diag_edge[2] = (!lfase && CTB(s->tab_slice_address, x_ctb, y_ctb) != CTB(s->tab_slice_address, x_ctb + 1, y_ctb + 1)) || right_tile_edge || bottom_tile_edge;
240 }
241 if (!edges[0] && !edges[3]) {
242 diag_edge[3] = (!lfase && CTB(s->tab_slice_address, x_ctb, y_ctb) != CTB(s->tab_slice_address, x_ctb - 1, y_ctb + 1)) || left_tile_edge || bottom_tile_edge;
243 }
244 }
245
246 for (c_idx = 0; c_idx < 3; c_idx++) {
247 int x0 = x >> s->sps->hshift[c_idx];
248 int y0 = y >> s->sps->vshift[c_idx];
249 int stride_src = s->frame->linesize[c_idx];
250 int stride_dst = s->sao_frame->linesize[c_idx];
251 int ctb_size_h = (1 << (s->sps->log2_ctb_size)) >> s->sps->hshift[c_idx];
252 int ctb_size_v = (1 << (s->sps->log2_ctb_size)) >> s->sps->vshift[c_idx];
253 int width = FFMIN(ctb_size_h, (s->sps->width >> s->sps->hshift[c_idx]) - x0);
254 int height = FFMIN(ctb_size_v, (s->sps->height >> s->sps->vshift[c_idx]) - y0);
255 uint8_t *src = &s->frame->data[c_idx][y0 * stride_src + (x0 << s->sps->pixel_shift)];
256 uint8_t *dst = &s->sao_frame->data[c_idx][y0 * stride_dst + (x0 << s->sps->pixel_shift)];
257
258 switch (sao->type_idx[c_idx]) {
259 case SAO_BAND:
260 copy_CTB(dst, src, width << s->sps->pixel_shift, height, stride_dst, stride_src);
261 s->hevcdsp.sao_band_filter(src, dst,
262 stride_src, stride_dst,
263 sao,
264 edges, width,
265 height, c_idx);
266 restore_tqb_pixels(s, x, y, width, height, c_idx);
267 sao->type_idx[c_idx] = SAO_APPLIED;
268 break;
269 case SAO_EDGE:
270 {
271 uint8_t left_pixels = !edges[0] && (CTB(s->sao, x_ctb-1, y_ctb).type_idx[c_idx] != SAO_APPLIED);
272 if (!edges[1]) {
273 uint8_t top_left = !edges[0] && (CTB(s->sao, x_ctb-1, y_ctb-1).type_idx[c_idx] != SAO_APPLIED);
274 uint8_t top_right = !edges[2] && (CTB(s->sao, x_ctb+1, y_ctb-1).type_idx[c_idx] != SAO_APPLIED);
275 if (CTB(s->sao, x_ctb , y_ctb-1).type_idx[c_idx] == 0)
276 memcpy( dst - stride_dst - (top_left << s->sps->pixel_shift),
277 src - stride_src - (top_left << s->sps->pixel_shift),
278 (top_left + width + top_right) << s->sps->pixel_shift);
279 else {
280 if (top_left)
281 memcpy( dst - stride_dst - (1 << s->sps->pixel_shift),
282 src - stride_src - (1 << s->sps->pixel_shift),
283 1 << s->sps->pixel_shift);
284 if(top_right)
285 memcpy( dst - stride_dst + (width << s->sps->pixel_shift),
286 src - stride_src + (width << s->sps->pixel_shift),
287 1 << s->sps->pixel_shift);
288 }
289 }
290 if (!edges[3]) { // bottom and bottom right
291 uint8_t bottom_left = !edges[0] && (CTB(s->sao, x_ctb-1, y_ctb+1).type_idx[c_idx] != SAO_APPLIED);
292 memcpy( dst + height * stride_dst - (bottom_left << s->sps->pixel_shift),
293 src + height * stride_src - (bottom_left << s->sps->pixel_shift),
294 (width + 1 + bottom_left) << s->sps->pixel_shift);
295 }
296 copy_CTB(dst - (left_pixels << s->sps->pixel_shift),
297 src - (left_pixels << s->sps->pixel_shift),
298 (width + 1 + left_pixels) << s->sps->pixel_shift, height, stride_dst, stride_src);
299 s->hevcdsp.sao_edge_filter[restore](src, dst,
300 stride_src, stride_dst,
301 sao,
302 edges, width,
303 height, c_idx,
304 vert_edge,
305 horiz_edge,
306 diag_edge);
307 restore_tqb_pixels(s, x, y, width, height, c_idx);
308 sao->type_idx[c_idx] = SAO_APPLIED;
309 break;
310 }
311 }
312 }
313}
314
315static int get_pcm(HEVCContext *s, int x, int y)
316{
317 int log2_min_pu_size = s->sps->log2_min_pu_size;
318 int x_pu, y_pu;
319
320 if (x < 0 || y < 0)
321 return 2;
322
323 x_pu = x >> log2_min_pu_size;
324 y_pu = y >> log2_min_pu_size;
325
326 if (x_pu >= s->sps->min_pu_width || y_pu >= s->sps->min_pu_height)
327 return 2;
328 return s->is_pcm[y_pu * s->sps->min_pu_width + x_pu];
329}
330
331#define TC_CALC(qp, bs) \
332 tctable[av_clip((qp) + DEFAULT_INTRA_TC_OFFSET * ((bs) - 1) + \
333 (tc_offset >> 1 << 1), \
334 0, MAX_QP + DEFAULT_INTRA_TC_OFFSET)]
335
336static void deblocking_filter_CTB(HEVCContext *s, int x0, int y0)
337{
338 uint8_t *src;
339 int x, y;
340 int chroma, beta;
341 int32_t c_tc[2], tc[2];
342 uint8_t no_p[2] = { 0 };
343 uint8_t no_q[2] = { 0 };
344
345 int log2_ctb_size = s->sps->log2_ctb_size;
346 int x_end, x_end2, y_end;
347 int ctb_size = 1 << log2_ctb_size;
348 int ctb = (x0 >> log2_ctb_size) +
349 (y0 >> log2_ctb_size) * s->sps->ctb_width;
350 int cur_tc_offset = s->deblock[ctb].tc_offset;
351 int cur_beta_offset = s->deblock[ctb].beta_offset;
352 int left_tc_offset, left_beta_offset;
353 int tc_offset, beta_offset;
354 int pcmf = (s->sps->pcm_enabled_flag &&
355 s->sps->pcm.loop_filter_disable_flag) ||
356 s->pps->transquant_bypass_enable_flag;
357
358 if (x0) {
359 left_tc_offset = s->deblock[ctb - 1].tc_offset;
360 left_beta_offset = s->deblock[ctb - 1].beta_offset;
361 } else {
362 left_tc_offset = 0;
363 left_beta_offset = 0;
364 }
365
366 x_end = x0 + ctb_size;
367 if (x_end > s->sps->width)
368 x_end = s->sps->width;
369 y_end = y0 + ctb_size;
370 if (y_end > s->sps->height)
371 y_end = s->sps->height;
372
373 tc_offset = cur_tc_offset;
374 beta_offset = cur_beta_offset;
375
376 x_end2 = x_end;
377 if (x_end2 != s->sps->width)
378 x_end2 -= 8;
379 for (y = y0; y < y_end; y += 8) {
380 // vertical filtering luma
381 for (x = x0 ? x0 : 8; x < x_end; x += 8) {
382 const int bs0 = s->vertical_bs[(x + y * s->bs_width) >> 2];
383 const int bs1 = s->vertical_bs[(x + (y + 4) * s->bs_width) >> 2];
384 if (bs0 || bs1) {
385 const int qp = (get_qPy(s, x - 1, y) + get_qPy(s, x, y) + 1) >> 1;
386
387 beta = betatable[av_clip(qp + beta_offset, 0, MAX_QP)];
388
389 tc[0] = bs0 ? TC_CALC(qp, bs0) : 0;
390 tc[1] = bs1 ? TC_CALC(qp, bs1) : 0;
391 src = &s->frame->data[LUMA][y * s->frame->linesize[LUMA] + (x << s->sps->pixel_shift)];
392 if (pcmf) {
393 no_p[0] = get_pcm(s, x - 1, y);
394 no_p[1] = get_pcm(s, x - 1, y + 4);
395 no_q[0] = get_pcm(s, x, y);
396 no_q[1] = get_pcm(s, x, y + 4);
397 s->hevcdsp.hevc_v_loop_filter_luma_c(src,
398 s->frame->linesize[LUMA],
399 beta, tc, no_p, no_q);
400 } else
401 s->hevcdsp.hevc_v_loop_filter_luma(src,
402 s->frame->linesize[LUMA],
403 beta, tc, no_p, no_q);
404 }
405 }
406
407 if(!y)
408 continue;
409
410 // horizontal filtering luma
411 for (x = x0 ? x0 - 8 : 0; x < x_end2; x += 8) {
412 const int bs0 = s->horizontal_bs[( x + y * s->bs_width) >> 2];
413 const int bs1 = s->horizontal_bs[((x + 4) + y * s->bs_width) >> 2];
414 if (bs0 || bs1) {
415 const int qp = (get_qPy(s, x, y - 1) + get_qPy(s, x, y) + 1) >> 1;
416
417 tc_offset = x >= x0 ? cur_tc_offset : left_tc_offset;
418 beta_offset = x >= x0 ? cur_beta_offset : left_beta_offset;
419
420 beta = betatable[av_clip(qp + beta_offset, 0, MAX_QP)];
421 tc[0] = bs0 ? TC_CALC(qp, bs0) : 0;
422 tc[1] = bs1 ? TC_CALC(qp, bs1) : 0;
423 src = &s->frame->data[LUMA][y * s->frame->linesize[LUMA] + (x << s->sps->pixel_shift)];
424 if (pcmf) {
425 no_p[0] = get_pcm(s, x, y - 1);
426 no_p[1] = get_pcm(s, x + 4, y - 1);
427 no_q[0] = get_pcm(s, x, y);
428 no_q[1] = get_pcm(s, x + 4, y);
429 s->hevcdsp.hevc_h_loop_filter_luma_c(src,
430 s->frame->linesize[LUMA],
431 beta, tc, no_p, no_q);
432 } else
433 s->hevcdsp.hevc_h_loop_filter_luma(src,
434 s->frame->linesize[LUMA],
435 beta, tc, no_p, no_q);
436 }
437 }
438 }
439
440 for (chroma = 1; chroma <= 2; chroma++) {
441 int h = 1 << s->sps->hshift[chroma];
442 int v = 1 << s->sps->vshift[chroma];
443
444 // vertical filtering chroma
445 for (y = y0; y < y_end; y += (8 * v)) {
446 for (x = x0 ? x0 : 8 * h; x < x_end; x += (8 * h)) {
447 const int bs0 = s->vertical_bs[(x + y * s->bs_width) >> 2];
448 const int bs1 = s->vertical_bs[(x + (y + (4 * v)) * s->bs_width) >> 2];
449
450 if ((bs0 == 2) || (bs1 == 2)) {
451 const int qp0 = (get_qPy(s, x - 1, y) + get_qPy(s, x, y) + 1) >> 1;
452 const int qp1 = (get_qPy(s, x - 1, y + (4 * v)) + get_qPy(s, x, y + (4 * v)) + 1) >> 1;
453
454 c_tc[0] = (bs0 == 2) ? chroma_tc(s, qp0, chroma, tc_offset) : 0;
455 c_tc[1] = (bs1 == 2) ? chroma_tc(s, qp1, chroma, tc_offset) : 0;
456 src = &s->frame->data[chroma][(y >> s->sps->vshift[chroma]) * s->frame->linesize[chroma] + ((x >> s->sps->hshift[chroma]) << s->sps->pixel_shift)];
457 if (pcmf) {
458 no_p[0] = get_pcm(s, x - 1, y);
459 no_p[1] = get_pcm(s, x - 1, y + (4 * v));
460 no_q[0] = get_pcm(s, x, y);
461 no_q[1] = get_pcm(s, x, y + (4 * v));
462 s->hevcdsp.hevc_v_loop_filter_chroma_c(src,
463 s->frame->linesize[chroma],
464 c_tc, no_p, no_q);
465 } else
466 s->hevcdsp.hevc_v_loop_filter_chroma(src,
467 s->frame->linesize[chroma],
468 c_tc, no_p, no_q);
469 }
470 }
471
472 if(!y)
473 continue;
474
475 // horizontal filtering chroma
476 tc_offset = x0 ? left_tc_offset : cur_tc_offset;
477 x_end2 = x_end;
478 if (x_end != s->sps->width)
479 x_end2 = x_end - 8 * h;
480 for (x = x0 ? x0 - 8 * h : 0; x < x_end2; x += (8 * h)) {
481 const int bs0 = s->horizontal_bs[( x + y * s->bs_width) >> 2];
482 const int bs1 = s->horizontal_bs[((x + 4 * h) + y * s->bs_width) >> 2];
483 if ((bs0 == 2) || (bs1 == 2)) {
484 const int qp0 = bs0 == 2 ? (get_qPy(s, x, y - 1) + get_qPy(s, x, y) + 1) >> 1 : 0;
485 const int qp1 = bs1 == 2 ? (get_qPy(s, x + (4 * h), y - 1) + get_qPy(s, x + (4 * h), y) + 1) >> 1 : 0;
486
487 c_tc[0] = bs0 == 2 ? chroma_tc(s, qp0, chroma, tc_offset) : 0;
488 c_tc[1] = bs1 == 2 ? chroma_tc(s, qp1, chroma, cur_tc_offset) : 0;
489 src = &s->frame->data[chroma][(y >> s->sps->vshift[1]) * s->frame->linesize[chroma] + ((x >> s->sps->hshift[1]) << s->sps->pixel_shift)];
490 if (pcmf) {
491 no_p[0] = get_pcm(s, x, y - 1);
492 no_p[1] = get_pcm(s, x + (4 * h), y - 1);
493 no_q[0] = get_pcm(s, x, y);
494 no_q[1] = get_pcm(s, x + (4 * h), y);
495 s->hevcdsp.hevc_h_loop_filter_chroma_c(src,
496 s->frame->linesize[chroma],
497 c_tc, no_p, no_q);
498 } else
499 s->hevcdsp.hevc_h_loop_filter_chroma(src,
500 s->frame->linesize[chroma],
501 c_tc, no_p, no_q);
502 }
503 }
504 }
505 }
506}
507
508static int boundary_strength(HEVCContext *s, MvField *curr, MvField *neigh,
509 RefPicList *neigh_refPicList)
510{
511 if (curr->pred_flag == PF_BI && neigh->pred_flag == PF_BI) {
512 // same L0 and L1
513 if (s->ref->refPicList[0].list[curr->ref_idx[0]] == neigh_refPicList[0].list[neigh->ref_idx[0]] &&
514 s->ref->refPicList[0].list[curr->ref_idx[0]] == s->ref->refPicList[1].list[curr->ref_idx[1]] &&
515 neigh_refPicList[0].list[neigh->ref_idx[0]] == neigh_refPicList[1].list[neigh->ref_idx[1]]) {
516 if ((FFABS(neigh->mv[0].x - curr->mv[0].x) >= 4 || FFABS(neigh->mv[0].y - curr->mv[0].y) >= 4 ||
517 FFABS(neigh->mv[1].x - curr->mv[1].x) >= 4 || FFABS(neigh->mv[1].y - curr->mv[1].y) >= 4) &&
518 (FFABS(neigh->mv[1].x - curr->mv[0].x) >= 4 || FFABS(neigh->mv[1].y - curr->mv[0].y) >= 4 ||
519 FFABS(neigh->mv[0].x - curr->mv[1].x) >= 4 || FFABS(neigh->mv[0].y - curr->mv[1].y) >= 4))
520 return 1;
521 else
522 return 0;
523 } else if (neigh_refPicList[0].list[neigh->ref_idx[0]] == s->ref->refPicList[0].list[curr->ref_idx[0]] &&
524 neigh_refPicList[1].list[neigh->ref_idx[1]] == s->ref->refPicList[1].list[curr->ref_idx[1]]) {
525 if (FFABS(neigh->mv[0].x - curr->mv[0].x) >= 4 || FFABS(neigh->mv[0].y - curr->mv[0].y) >= 4 ||
526 FFABS(neigh->mv[1].x - curr->mv[1].x) >= 4 || FFABS(neigh->mv[1].y - curr->mv[1].y) >= 4)
527 return 1;
528 else
529 return 0;
530 } else if (neigh_refPicList[1].list[neigh->ref_idx[1]] == s->ref->refPicList[0].list[curr->ref_idx[0]] &&
531 neigh_refPicList[0].list[neigh->ref_idx[0]] == s->ref->refPicList[1].list[curr->ref_idx[1]]) {
532 if (FFABS(neigh->mv[1].x - curr->mv[0].x) >= 4 || FFABS(neigh->mv[1].y - curr->mv[0].y) >= 4 ||
533 FFABS(neigh->mv[0].x - curr->mv[1].x) >= 4 || FFABS(neigh->mv[0].y - curr->mv[1].y) >= 4)
534 return 1;
535 else
536 return 0;
537 } else {
538 return 1;
539 }
540 } else if ((curr->pred_flag != PF_BI) && (neigh->pred_flag != PF_BI)){ // 1 MV
541 Mv A, B;
542 int ref_A, ref_B;
543
544 if (curr->pred_flag & 1) {
545 A = curr->mv[0];
546 ref_A = s->ref->refPicList[0].list[curr->ref_idx[0]];
547 } else {
548 A = curr->mv[1];
549 ref_A = s->ref->refPicList[1].list[curr->ref_idx[1]];
550 }
551
552 if (neigh->pred_flag & 1) {
553 B = neigh->mv[0];
554 ref_B = neigh_refPicList[0].list[neigh->ref_idx[0]];
555 } else {
556 B = neigh->mv[1];
557 ref_B = neigh_refPicList[1].list[neigh->ref_idx[1]];
558 }
559
560 if (ref_A == ref_B) {
561 if (FFABS(A.x - B.x) >= 4 || FFABS(A.y - B.y) >= 4)
562 return 1;
563 else
564 return 0;
565 } else
566 return 1;
567 }
568
569 return 1;
570}
571
572void ff_hevc_deblocking_boundary_strengths(HEVCContext *s, int x0, int y0,
573 int log2_trafo_size)
574{
575 HEVCLocalContext *lc = s->HEVClc;
576 MvField *tab_mvf = s->ref->tab_mvf;
577 int log2_min_pu_size = s->sps->log2_min_pu_size;
578 int log2_min_tu_size = s->sps->log2_min_tb_size;
579 int min_pu_width = s->sps->min_pu_width;
580 int min_tu_width = s->sps->min_tb_width;
581 int is_intra = tab_mvf[(y0 >> log2_min_pu_size) * min_pu_width +
582 (x0 >> log2_min_pu_size)].pred_flag == PF_INTRA;
583 int boundary_upper, boundary_left;
584 int i, j, bs;
585
586 boundary_upper = y0 > 0 && !(y0 & 7);
587 if (boundary_upper &&
588 ((!s->sh.slice_loop_filter_across_slices_enabled_flag &&
589 lc->boundary_flags & BOUNDARY_UPPER_SLICE &&
590 (y0 % (1 << s->sps->log2_ctb_size)) == 0) ||
591 (!s->pps->loop_filter_across_tiles_enabled_flag &&
592 lc->boundary_flags & BOUNDARY_UPPER_TILE &&
593 (y0 % (1 << s->sps->log2_ctb_size)) == 0)))
594 boundary_upper = 0;
595
596 if (boundary_upper) {
597 RefPicList *rpl_top = (lc->boundary_flags & BOUNDARY_UPPER_SLICE) ?
598 ff_hevc_get_ref_list(s, s->ref, x0, y0 - 1) :
599 s->ref->refPicList;
600 int yp_pu = (y0 - 1) >> log2_min_pu_size;
601 int yq_pu = y0 >> log2_min_pu_size;
602 int yp_tu = (y0 - 1) >> log2_min_tu_size;
603 int yq_tu = y0 >> log2_min_tu_size;
604
605 for (i = 0; i < (1 << log2_trafo_size); i += 4) {
606 int x_pu = (x0 + i) >> log2_min_pu_size;
607 int x_tu = (x0 + i) >> log2_min_tu_size;
608 MvField *top = &tab_mvf[yp_pu * min_pu_width + x_pu];
609 MvField *curr = &tab_mvf[yq_pu * min_pu_width + x_pu];
610 uint8_t top_cbf_luma = s->cbf_luma[yp_tu * min_tu_width + x_tu];
611 uint8_t curr_cbf_luma = s->cbf_luma[yq_tu * min_tu_width + x_tu];
612
613 if (curr->pred_flag == PF_INTRA || top->pred_flag == PF_INTRA)
614 bs = 2;
615 else if (curr_cbf_luma || top_cbf_luma)
616 bs = 1;
617 else
618 bs = boundary_strength(s, curr, top, rpl_top);
619 s->horizontal_bs[((x0 + i) + y0 * s->bs_width) >> 2] = bs;
620 }
621 }
622
623 // bs for vertical TU boundaries
624 boundary_left = x0 > 0 && !(x0 & 7);
625 if (boundary_left &&
626 ((!s->sh.slice_loop_filter_across_slices_enabled_flag &&
627 lc->boundary_flags & BOUNDARY_LEFT_SLICE &&
628 (x0 % (1 << s->sps->log2_ctb_size)) == 0) ||
629 (!s->pps->loop_filter_across_tiles_enabled_flag &&
630 lc->boundary_flags & BOUNDARY_LEFT_TILE &&
631 (x0 % (1 << s->sps->log2_ctb_size)) == 0)))
632 boundary_left = 0;
633
634 if (boundary_left) {
635 RefPicList *rpl_left = (lc->boundary_flags & BOUNDARY_LEFT_SLICE) ?
636 ff_hevc_get_ref_list(s, s->ref, x0 - 1, y0) :
637 s->ref->refPicList;
638 int xp_pu = (x0 - 1) >> log2_min_pu_size;
639 int xq_pu = x0 >> log2_min_pu_size;
640 int xp_tu = (x0 - 1) >> log2_min_tu_size;
641 int xq_tu = x0 >> log2_min_tu_size;
642
643 for (i = 0; i < (1 << log2_trafo_size); i += 4) {
644 int y_pu = (y0 + i) >> log2_min_pu_size;
645 int y_tu = (y0 + i) >> log2_min_tu_size;
646 MvField *left = &tab_mvf[y_pu * min_pu_width + xp_pu];
647 MvField *curr = &tab_mvf[y_pu * min_pu_width + xq_pu];
648 uint8_t left_cbf_luma = s->cbf_luma[y_tu * min_tu_width + xp_tu];
649 uint8_t curr_cbf_luma = s->cbf_luma[y_tu * min_tu_width + xq_tu];
650
651 if (curr->pred_flag == PF_INTRA || left->pred_flag == PF_INTRA)
652 bs = 2;
653 else if (curr_cbf_luma || left_cbf_luma)
654 bs = 1;
655 else
656 bs = boundary_strength(s, curr, left, rpl_left);
657 s->vertical_bs[(x0 + (y0 + i) * s->bs_width) >> 2] = bs;
658 }
659 }
660
661 if (log2_trafo_size > log2_min_pu_size && !is_intra) {
662 RefPicList *rpl = s->ref->refPicList;
663
664 // bs for TU internal horizontal PU boundaries
665 for (j = 8; j < (1 << log2_trafo_size); j += 8) {
666 int yp_pu = (y0 + j - 1) >> log2_min_pu_size;
667 int yq_pu = (y0 + j) >> log2_min_pu_size;
668
669 for (i = 0; i < (1 << log2_trafo_size); i += 4) {
670 int x_pu = (x0 + i) >> log2_min_pu_size;
671 MvField *top = &tab_mvf[yp_pu * min_pu_width + x_pu];
672 MvField *curr = &tab_mvf[yq_pu * min_pu_width + x_pu];
673
674 bs = boundary_strength(s, curr, top, rpl);
675 s->horizontal_bs[((x0 + i) + (y0 + j) * s->bs_width) >> 2] = bs;
676 }
677 }
678
679 // bs for TU internal vertical PU boundaries
680 for (j = 0; j < (1 << log2_trafo_size); j += 4) {
681 int y_pu = (y0 + j) >> log2_min_pu_size;
682
683 for (i = 8; i < (1 << log2_trafo_size); i += 8) {
684 int xp_pu = (x0 + i - 1) >> log2_min_pu_size;
685 int xq_pu = (x0 + i) >> log2_min_pu_size;
686 MvField *left = &tab_mvf[y_pu * min_pu_width + xp_pu];
687 MvField *curr = &tab_mvf[y_pu * min_pu_width + xq_pu];
688
689 bs = boundary_strength(s, curr, left, rpl);
690 s->vertical_bs[((x0 + i) + (y0 + j) * s->bs_width) >> 2] = bs;
691 }
692 }
693 }
694}
695
696#undef LUMA
697#undef CB
698#undef CR
699
700void ff_hevc_hls_filter(HEVCContext *s, int x, int y, int ctb_size)
701{
702 int x_end = x >= s->sps->width - ctb_size;
703 deblocking_filter_CTB(s, x, y);
704 if (s->sps->sao_enabled) {
705 int y_end = y >= s->sps->height - ctb_size;
706 if (y && x)
707 sao_filter_CTB(s, x - ctb_size, y - ctb_size);
708 if (x && y_end)
709 sao_filter_CTB(s, x - ctb_size, y);
710 if (y && x_end) {
711 sao_filter_CTB(s, x, y - ctb_size);
712 if (s->threads_type & FF_THREAD_FRAME )
713 ff_thread_report_progress(&s->ref->tf, y, 0);
714 }
715 if (x_end && y_end) {
716 sao_filter_CTB(s, x , y);
717 if (s->threads_type & FF_THREAD_FRAME )
718 ff_thread_report_progress(&s->ref->tf, y + ctb_size, 0);
719 }
720 } else if (s->threads_type & FF_THREAD_FRAME && x_end)
721 ff_thread_report_progress(&s->ref->tf, y + ctb_size - 4, 0);
722}
723
724void ff_hevc_hls_filters(HEVCContext *s, int x_ctb, int y_ctb, int ctb_size)
725{
726 int x_end = x_ctb >= s->sps->width - ctb_size;
727 int y_end = y_ctb >= s->sps->height - ctb_size;
728 if (y_ctb && x_ctb)
729 ff_hevc_hls_filter(s, x_ctb - ctb_size, y_ctb - ctb_size, ctb_size);
730 if (y_ctb && x_end)
731 ff_hevc_hls_filter(s, x_ctb, y_ctb - ctb_size, ctb_size);
732 if (x_ctb && y_end)
733 ff_hevc_hls_filter(s, x_ctb - ctb_size, y_ctb, ctb_size);
734}
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