3b0b8806473502a197c38a62f5597b551535090d
[libav.git] / libavcodec / h264_mb_template.c
1 /*
2 * H.26L/H.264/AVC/JVT/14496-10/... decoder
3 * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
4 *
5 * This file is part of Libav.
6 *
7 * Libav is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * Libav is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with Libav; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 #include "svq3.h"
23
24 #undef FUNC
25 #undef PIXEL_SHIFT
26
27 #if SIMPLE
28 # define FUNC(n) AV_JOIN(n ## _simple_, BITS)
29 # define PIXEL_SHIFT (BITS >> 4)
30 #else
31 # define FUNC(n) n ## _complex
32 # define PIXEL_SHIFT h->pixel_shift
33 #endif
34
35 #undef CHROMA_IDC
36 #define CHROMA_IDC 1
37 #include "h264_mc_template.c"
38
39 #undef CHROMA_IDC
40 #define CHROMA_IDC 2
41 #include "h264_mc_template.c"
42
43 static av_noinline void FUNC(hl_decode_mb)(const H264Context *h, H264SliceContext *sl)
44 {
45 const int mb_x = sl->mb_x;
46 const int mb_y = sl->mb_y;
47 const int mb_xy = sl->mb_xy;
48 const int mb_type = h->cur_pic.mb_type[mb_xy];
49 uint8_t *dest_y, *dest_cb, *dest_cr;
50 int linesize, uvlinesize /*dct_offset*/;
51 int i, j;
52 const int *block_offset = &h->block_offset[0];
53 const int transform_bypass = !SIMPLE && (sl->qscale == 0 && h->sps.transform_bypass);
54 /* is_h264 should always be true if SVQ3 is disabled. */
55 const int is_h264 = !CONFIG_SVQ3_DECODER || SIMPLE || h->avctx->codec_id == AV_CODEC_ID_H264;
56 void (*idct_add)(uint8_t *dst, int16_t *block, int stride);
57 const int block_h = 16 >> h->chroma_y_shift;
58 const int chroma422 = CHROMA422(h);
59
60 dest_y = h->cur_pic.f->data[0] + ((mb_x << PIXEL_SHIFT) + mb_y * sl->linesize) * 16;
61 dest_cb = h->cur_pic.f->data[1] + (mb_x << PIXEL_SHIFT) * 8 + mb_y * sl->uvlinesize * block_h;
62 dest_cr = h->cur_pic.f->data[2] + (mb_x << PIXEL_SHIFT) * 8 + mb_y * sl->uvlinesize * block_h;
63
64 h->vdsp.prefetch(dest_y + (sl->mb_x & 3) * 4 * sl->linesize + (64 << PIXEL_SHIFT), sl->linesize, 4);
65 h->vdsp.prefetch(dest_cb + (sl->mb_x & 7) * sl->uvlinesize + (64 << PIXEL_SHIFT), dest_cr - dest_cb, 2);
66
67 h->list_counts[mb_xy] = sl->list_count;
68
69 if (!SIMPLE && MB_FIELD(sl)) {
70 linesize = sl->mb_linesize = sl->linesize * 2;
71 uvlinesize = sl->mb_uvlinesize = sl->uvlinesize * 2;
72 block_offset = &h->block_offset[48];
73 if (mb_y & 1) { // FIXME move out of this function?
74 dest_y -= sl->linesize * 15;
75 dest_cb -= sl->uvlinesize * (block_h - 1);
76 dest_cr -= sl->uvlinesize * (block_h - 1);
77 }
78 if (FRAME_MBAFF(h)) {
79 int list;
80 for (list = 0; list < sl->list_count; list++) {
81 if (!USES_LIST(mb_type, list))
82 continue;
83 if (IS_16X16(mb_type)) {
84 int8_t *ref = &sl->ref_cache[list][scan8[0]];
85 fill_rectangle(ref, 4, 4, 8, (16 + *ref) ^ (sl->mb_y & 1), 1);
86 } else {
87 for (i = 0; i < 16; i += 4) {
88 int ref = sl->ref_cache[list][scan8[i]];
89 if (ref >= 0)
90 fill_rectangle(&sl->ref_cache[list][scan8[i]], 2, 2,
91 8, (16 + ref) ^ (sl->mb_y & 1), 1);
92 }
93 }
94 }
95 }
96 } else {
97 linesize = sl->mb_linesize = sl->linesize;
98 uvlinesize = sl->mb_uvlinesize = sl->uvlinesize;
99 // dct_offset = s->linesize * 16;
100 }
101
102 if (!SIMPLE && IS_INTRA_PCM(mb_type)) {
103 if (PIXEL_SHIFT) {
104 const int bit_depth = h->sps.bit_depth_luma;
105 int j;
106 GetBitContext gb;
107 init_get_bits(&gb, sl->intra_pcm_ptr,
108 ff_h264_mb_sizes[h->sps.chroma_format_idc] * bit_depth);
109
110 for (i = 0; i < 16; i++) {
111 uint16_t *tmp_y = (uint16_t *)(dest_y + i * linesize);
112 for (j = 0; j < 16; j++)
113 tmp_y[j] = get_bits(&gb, bit_depth);
114 }
115 if (SIMPLE || !CONFIG_GRAY || !(h->flags & AV_CODEC_FLAG_GRAY)) {
116 if (!h->sps.chroma_format_idc) {
117 for (i = 0; i < block_h; i++) {
118 uint16_t *tmp_cb = (uint16_t *)(dest_cb + i * uvlinesize);
119 for (j = 0; j < 8; j++)
120 tmp_cb[j] = 1 << (bit_depth - 1);
121 }
122 for (i = 0; i < block_h; i++) {
123 uint16_t *tmp_cr = (uint16_t *)(dest_cr + i * uvlinesize);
124 for (j = 0; j < 8; j++)
125 tmp_cr[j] = 1 << (bit_depth - 1);
126 }
127 } else {
128 for (i = 0; i < block_h; i++) {
129 uint16_t *tmp_cb = (uint16_t *)(dest_cb + i * uvlinesize);
130 for (j = 0; j < 8; j++)
131 tmp_cb[j] = get_bits(&gb, bit_depth);
132 }
133 for (i = 0; i < block_h; i++) {
134 uint16_t *tmp_cr = (uint16_t *)(dest_cr + i * uvlinesize);
135 for (j = 0; j < 8; j++)
136 tmp_cr[j] = get_bits(&gb, bit_depth);
137 }
138 }
139 }
140 } else {
141 for (i = 0; i < 16; i++)
142 memcpy(dest_y + i * linesize, sl->intra_pcm_ptr + i * 16, 16);
143 if (SIMPLE || !CONFIG_GRAY || !(h->flags & AV_CODEC_FLAG_GRAY)) {
144 if (!h->sps.chroma_format_idc) {
145 for (i = 0; i < block_h; i++) {
146 memset(dest_cb + i * uvlinesize, 128, 8);
147 memset(dest_cr + i * uvlinesize, 128, 8);
148 }
149 } else {
150 const uint8_t *src_cb = sl->intra_pcm_ptr + 256;
151 const uint8_t *src_cr = sl->intra_pcm_ptr + 256 + block_h * 8;
152 for (i = 0; i < block_h; i++) {
153 memcpy(dest_cb + i * uvlinesize, src_cb + i * 8, 8);
154 memcpy(dest_cr + i * uvlinesize, src_cr + i * 8, 8);
155 }
156 }
157 }
158 }
159 } else {
160 if (IS_INTRA(mb_type)) {
161 if (sl->deblocking_filter)
162 xchg_mb_border(h, sl, dest_y, dest_cb, dest_cr, linesize,
163 uvlinesize, 1, 0, SIMPLE, PIXEL_SHIFT);
164
165 if (SIMPLE || !CONFIG_GRAY || !(h->flags & AV_CODEC_FLAG_GRAY)) {
166 h->hpc.pred8x8[sl->chroma_pred_mode](dest_cb, uvlinesize);
167 h->hpc.pred8x8[sl->chroma_pred_mode](dest_cr, uvlinesize);
168 }
169
170 hl_decode_mb_predict_luma(h, sl, mb_type, is_h264, SIMPLE,
171 transform_bypass, PIXEL_SHIFT,
172 block_offset, linesize, dest_y, 0);
173
174 if (sl->deblocking_filter)
175 xchg_mb_border(h, sl, dest_y, dest_cb, dest_cr, linesize,
176 uvlinesize, 0, 0, SIMPLE, PIXEL_SHIFT);
177 } else if (is_h264) {
178 if (chroma422) {
179 FUNC(hl_motion_422)(h, sl, dest_y, dest_cb, dest_cr,
180 h->qpel_put, h->h264chroma.put_h264_chroma_pixels_tab,
181 h->qpel_avg, h->h264chroma.avg_h264_chroma_pixels_tab,
182 h->h264dsp.weight_h264_pixels_tab,
183 h->h264dsp.biweight_h264_pixels_tab);
184 } else {
185 FUNC(hl_motion_420)(h, sl, dest_y, dest_cb, dest_cr,
186 h->qpel_put, h->h264chroma.put_h264_chroma_pixels_tab,
187 h->qpel_avg, h->h264chroma.avg_h264_chroma_pixels_tab,
188 h->h264dsp.weight_h264_pixels_tab,
189 h->h264dsp.biweight_h264_pixels_tab);
190 }
191 }
192
193 hl_decode_mb_idct_luma(h, sl, mb_type, is_h264, SIMPLE, transform_bypass,
194 PIXEL_SHIFT, block_offset, linesize, dest_y, 0);
195
196 if ((SIMPLE || !CONFIG_GRAY || !(h->flags & AV_CODEC_FLAG_GRAY)) &&
197 (sl->cbp & 0x30)) {
198 uint8_t *dest[2] = { dest_cb, dest_cr };
199 if (transform_bypass) {
200 if (IS_INTRA(mb_type) && h->sps.profile_idc == 244 &&
201 (sl->chroma_pred_mode == VERT_PRED8x8 ||
202 sl->chroma_pred_mode == HOR_PRED8x8)) {
203 h->hpc.pred8x8_add[sl->chroma_pred_mode](dest[0],
204 block_offset + 16,
205 sl->mb + (16 * 16 * 1 << PIXEL_SHIFT),
206 uvlinesize);
207 h->hpc.pred8x8_add[sl->chroma_pred_mode](dest[1],
208 block_offset + 32,
209 sl->mb + (16 * 16 * 2 << PIXEL_SHIFT),
210 uvlinesize);
211 } else {
212 idct_add = h->h264dsp.h264_add_pixels4_clear;
213 for (j = 1; j < 3; j++) {
214 for (i = j * 16; i < j * 16 + 4; i++)
215 if (sl->non_zero_count_cache[scan8[i]] ||
216 dctcoef_get(sl->mb, PIXEL_SHIFT, i * 16))
217 idct_add(dest[j - 1] + block_offset[i],
218 sl->mb + (i * 16 << PIXEL_SHIFT),
219 uvlinesize);
220 if (chroma422) {
221 for (i = j * 16 + 4; i < j * 16 + 8; i++)
222 if (sl->non_zero_count_cache[scan8[i + 4]] ||
223 dctcoef_get(sl->mb, PIXEL_SHIFT, i * 16))
224 idct_add(dest[j - 1] + block_offset[i + 4],
225 sl->mb + (i * 16 << PIXEL_SHIFT),
226 uvlinesize);
227 }
228 }
229 }
230 } else {
231 if (is_h264) {
232 int qp[2];
233 if (chroma422) {
234 qp[0] = sl->chroma_qp[0] + 3;
235 qp[1] = sl->chroma_qp[1] + 3;
236 } else {
237 qp[0] = sl->chroma_qp[0];
238 qp[1] = sl->chroma_qp[1];
239 }
240 if (sl->non_zero_count_cache[scan8[CHROMA_DC_BLOCK_INDEX + 0]])
241 h->h264dsp.h264_chroma_dc_dequant_idct(sl->mb + (16 * 16 * 1 << PIXEL_SHIFT),
242 h->dequant4_coeff[IS_INTRA(mb_type) ? 1 : 4][qp[0]][0]);
243 if (sl->non_zero_count_cache[scan8[CHROMA_DC_BLOCK_INDEX + 1]])
244 h->h264dsp.h264_chroma_dc_dequant_idct(sl->mb + (16 * 16 * 2 << PIXEL_SHIFT),
245 h->dequant4_coeff[IS_INTRA(mb_type) ? 2 : 5][qp[1]][0]);
246 h->h264dsp.h264_idct_add8(dest, block_offset,
247 sl->mb, uvlinesize,
248 sl->non_zero_count_cache);
249 } else if (CONFIG_SVQ3_DECODER) {
250 h->h264dsp.h264_chroma_dc_dequant_idct(sl->mb + 16 * 16 * 1,
251 h->dequant4_coeff[IS_INTRA(mb_type) ? 1 : 4][sl->chroma_qp[0]][0]);
252 h->h264dsp.h264_chroma_dc_dequant_idct(sl->mb + 16 * 16 * 2,
253 h->dequant4_coeff[IS_INTRA(mb_type) ? 2 : 5][sl->chroma_qp[1]][0]);
254 for (j = 1; j < 3; j++) {
255 for (i = j * 16; i < j * 16 + 4; i++)
256 if (sl->non_zero_count_cache[scan8[i]] || sl->mb[i * 16]) {
257 uint8_t *const ptr = dest[j - 1] + block_offset[i];
258 ff_svq3_add_idct_c(ptr, sl->mb + i * 16,
259 uvlinesize,
260 ff_h264_chroma_qp[0][sl->qscale + 12] - 12, 2);
261 }
262 }
263 }
264 }
265 }
266 }
267 }
268
269 #if !SIMPLE || BITS == 8
270
271 #undef CHROMA_IDC
272 #define CHROMA_IDC 3
273 #include "h264_mc_template.c"
274
275 static av_noinline void FUNC(hl_decode_mb_444)(const H264Context *h, H264SliceContext *sl)
276 {
277 const int mb_x = sl->mb_x;
278 const int mb_y = sl->mb_y;
279 const int mb_xy = sl->mb_xy;
280 const int mb_type = h->cur_pic.mb_type[mb_xy];
281 uint8_t *dest[3];
282 int linesize;
283 int i, j, p;
284 const int *block_offset = &h->block_offset[0];
285 const int transform_bypass = !SIMPLE && (sl->qscale == 0 && h->sps.transform_bypass);
286 const int plane_count = (SIMPLE || !CONFIG_GRAY || !(h->flags & AV_CODEC_FLAG_GRAY)) ? 3 : 1;
287
288 for (p = 0; p < plane_count; p++) {
289 dest[p] = h->cur_pic.f->data[p] +
290 ((mb_x << PIXEL_SHIFT) + mb_y * sl->linesize) * 16;
291 h->vdsp.prefetch(dest[p] + (sl->mb_x & 3) * 4 * sl->linesize + (64 << PIXEL_SHIFT),
292 sl->linesize, 4);
293 }
294
295 h->list_counts[mb_xy] = sl->list_count;
296
297 if (!SIMPLE && MB_FIELD(sl)) {
298 linesize = sl->mb_linesize = sl->mb_uvlinesize = sl->linesize * 2;
299 block_offset = &h->block_offset[48];
300 if (mb_y & 1) // FIXME move out of this function?
301 for (p = 0; p < 3; p++)
302 dest[p] -= sl->linesize * 15;
303 if (FRAME_MBAFF(h)) {
304 int list;
305 for (list = 0; list < sl->list_count; list++) {
306 if (!USES_LIST(mb_type, list))
307 continue;
308 if (IS_16X16(mb_type)) {
309 int8_t *ref = &sl->ref_cache[list][scan8[0]];
310 fill_rectangle(ref, 4, 4, 8, (16 + *ref) ^ (sl->mb_y & 1), 1);
311 } else {
312 for (i = 0; i < 16; i += 4) {
313 int ref = sl->ref_cache[list][scan8[i]];
314 if (ref >= 0)
315 fill_rectangle(&sl->ref_cache[list][scan8[i]], 2, 2,
316 8, (16 + ref) ^ (sl->mb_y & 1), 1);
317 }
318 }
319 }
320 }
321 } else {
322 linesize = sl->mb_linesize = sl->mb_uvlinesize = sl->linesize;
323 }
324
325 if (!SIMPLE && IS_INTRA_PCM(mb_type)) {
326 if (PIXEL_SHIFT) {
327 const int bit_depth = h->sps.bit_depth_luma;
328 GetBitContext gb;
329 init_get_bits(&gb, sl->intra_pcm_ptr, 768 * bit_depth);
330
331 for (p = 0; p < plane_count; p++)
332 for (i = 0; i < 16; i++) {
333 uint16_t *tmp = (uint16_t *)(dest[p] + i * linesize);
334 for (j = 0; j < 16; j++)
335 tmp[j] = get_bits(&gb, bit_depth);
336 }
337 } else {
338 for (p = 0; p < plane_count; p++)
339 for (i = 0; i < 16; i++)
340 memcpy(dest[p] + i * linesize,
341 sl->intra_pcm_ptr + p * 256 + i * 16, 16);
342 }
343 } else {
344 if (IS_INTRA(mb_type)) {
345 if (sl->deblocking_filter)
346 xchg_mb_border(h, sl, dest[0], dest[1], dest[2], linesize,
347 linesize, 1, 1, SIMPLE, PIXEL_SHIFT);
348
349 for (p = 0; p < plane_count; p++)
350 hl_decode_mb_predict_luma(h, sl, mb_type, 1, SIMPLE,
351 transform_bypass, PIXEL_SHIFT,
352 block_offset, linesize, dest[p], p);
353
354 if (sl->deblocking_filter)
355 xchg_mb_border(h, sl, dest[0], dest[1], dest[2], linesize,
356 linesize, 0, 1, SIMPLE, PIXEL_SHIFT);
357 } else {
358 FUNC(hl_motion_444)(h, sl, dest[0], dest[1], dest[2],
359 h->qpel_put, h->h264chroma.put_h264_chroma_pixels_tab,
360 h->qpel_avg, h->h264chroma.avg_h264_chroma_pixels_tab,
361 h->h264dsp.weight_h264_pixels_tab,
362 h->h264dsp.biweight_h264_pixels_tab);
363 }
364
365 for (p = 0; p < plane_count; p++)
366 hl_decode_mb_idct_luma(h, sl, mb_type, 1, SIMPLE, transform_bypass,
367 PIXEL_SHIFT, block_offset, linesize,
368 dest[p], p);
369 }
370 }
371
372 #endif