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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 FFmpeg. | |
6 | * | |
7 | * FFmpeg 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 | * FFmpeg 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 FFmpeg; 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)(H264Context *h) | |
44 | { | |
45 | const int mb_x = h->mb_x; | |
46 | const int mb_y = h->mb_y; | |
47 | const int mb_xy = h->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 | int *block_offset = &h->block_offset[0]; | |
53 | const int transform_bypass = !SIMPLE && (h->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 * h->linesize) * 16; | |
61 | dest_cb = h->cur_pic.f.data[1] + (mb_x << PIXEL_SHIFT) * 8 + mb_y * h->uvlinesize * block_h; | |
62 | dest_cr = h->cur_pic.f.data[2] + (mb_x << PIXEL_SHIFT) * 8 + mb_y * h->uvlinesize * block_h; | |
63 | ||
64 | h->vdsp.prefetch(dest_y + (h->mb_x & 3) * 4 * h->linesize + (64 << PIXEL_SHIFT), h->linesize, 4); | |
65 | h->vdsp.prefetch(dest_cb + (h->mb_x & 7) * h->uvlinesize + (64 << PIXEL_SHIFT), dest_cr - dest_cb, 2); | |
66 | ||
67 | h->list_counts[mb_xy] = h->list_count; | |
68 | ||
69 | if (!SIMPLE && MB_FIELD(h)) { | |
70 | linesize = h->mb_linesize = h->linesize * 2; | |
71 | uvlinesize = h->mb_uvlinesize = h->uvlinesize * 2; | |
72 | block_offset = &h->block_offset[48]; | |
73 | if (mb_y & 1) { // FIXME move out of this function? | |
74 | dest_y -= h->linesize * 15; | |
75 | dest_cb -= h->uvlinesize * (block_h - 1); | |
76 | dest_cr -= h->uvlinesize * (block_h - 1); | |
77 | } | |
78 | if (FRAME_MBAFF(h)) { | |
79 | int list; | |
80 | for (list = 0; list < h->list_count; list++) { | |
81 | if (!USES_LIST(mb_type, list)) | |
82 | continue; | |
83 | if (IS_16X16(mb_type)) { | |
84 | int8_t *ref = &h->ref_cache[list][scan8[0]]; | |
85 | fill_rectangle(ref, 4, 4, 8, (16 + *ref) ^ (h->mb_y & 1), 1); | |
86 | } else { | |
87 | for (i = 0; i < 16; i += 4) { | |
88 | int ref = h->ref_cache[list][scan8[i]]; | |
89 | if (ref >= 0) | |
90 | fill_rectangle(&h->ref_cache[list][scan8[i]], 2, 2, | |
91 | 8, (16 + ref) ^ (h->mb_y & 1), 1); | |
92 | } | |
93 | } | |
94 | } | |
95 | } | |
96 | } else { | |
97 | linesize = h->mb_linesize = h->linesize; | |
98 | uvlinesize = h->mb_uvlinesize = h->uvlinesize; | |
99 | // dct_offset = s->linesize * 16; | |
100 | } | |
101 | ||
102 | if (!SIMPLE && IS_INTRA_PCM(mb_type)) { | |
103 | const int bit_depth = h->sps.bit_depth_luma; | |
104 | if (PIXEL_SHIFT) { | |
105 | int j; | |
106 | GetBitContext gb; | |
107 | init_get_bits(&gb, h->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 & 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 | uint16_t *tmp_cr = (uint16_t *)(dest_cr + i * uvlinesize); | |
120 | for (j = 0; j < 8; j++) { | |
121 | tmp_cb[j] = tmp_cr[j] = 1 << (bit_depth - 1); | |
122 | } | |
123 | } | |
124 | } else { | |
125 | for (i = 0; i < block_h; i++) { | |
126 | uint16_t *tmp_cb = (uint16_t *)(dest_cb + i * uvlinesize); | |
127 | for (j = 0; j < 8; j++) | |
128 | tmp_cb[j] = get_bits(&gb, bit_depth); | |
129 | } | |
130 | for (i = 0; i < block_h; i++) { | |
131 | uint16_t *tmp_cr = (uint16_t *)(dest_cr + i * uvlinesize); | |
132 | for (j = 0; j < 8; j++) | |
133 | tmp_cr[j] = get_bits(&gb, bit_depth); | |
134 | } | |
135 | } | |
136 | } | |
137 | } else { | |
138 | for (i = 0; i < 16; i++) | |
139 | memcpy(dest_y + i * linesize, h->intra_pcm_ptr + i * 16, 16); | |
140 | if (SIMPLE || !CONFIG_GRAY || !(h->flags & CODEC_FLAG_GRAY)) { | |
141 | if (!h->sps.chroma_format_idc) { | |
142 | for (i = 0; i < 8; i++) { | |
143 | memset(dest_cb + i * uvlinesize, 1 << (bit_depth - 1), 8); | |
144 | memset(dest_cr + i * uvlinesize, 1 << (bit_depth - 1), 8); | |
145 | } | |
146 | } else { | |
147 | const uint8_t *src_cb = h->intra_pcm_ptr + 256; | |
148 | const uint8_t *src_cr = h->intra_pcm_ptr + 256 + block_h * 8; | |
149 | for (i = 0; i < block_h; i++) { | |
150 | memcpy(dest_cb + i * uvlinesize, src_cb + i * 8, 8); | |
151 | memcpy(dest_cr + i * uvlinesize, src_cr + i * 8, 8); | |
152 | } | |
153 | } | |
154 | } | |
155 | } | |
156 | } else { | |
157 | if (IS_INTRA(mb_type)) { | |
158 | if (h->deblocking_filter) | |
159 | xchg_mb_border(h, dest_y, dest_cb, dest_cr, linesize, | |
160 | uvlinesize, 1, 0, SIMPLE, PIXEL_SHIFT); | |
161 | ||
162 | if (SIMPLE || !CONFIG_GRAY || !(h->flags & CODEC_FLAG_GRAY)) { | |
163 | h->hpc.pred8x8[h->chroma_pred_mode](dest_cb, uvlinesize); | |
164 | h->hpc.pred8x8[h->chroma_pred_mode](dest_cr, uvlinesize); | |
165 | } | |
166 | ||
167 | hl_decode_mb_predict_luma(h, mb_type, is_h264, SIMPLE, | |
168 | transform_bypass, PIXEL_SHIFT, | |
169 | block_offset, linesize, dest_y, 0); | |
170 | ||
171 | if (h->deblocking_filter) | |
172 | xchg_mb_border(h, dest_y, dest_cb, dest_cr, linesize, | |
173 | uvlinesize, 0, 0, SIMPLE, PIXEL_SHIFT); | |
174 | } else if (is_h264) { | |
175 | if (chroma422) { | |
176 | FUNC(hl_motion_422)(h, dest_y, dest_cb, dest_cr, | |
177 | h->qpel_put, h->h264chroma.put_h264_chroma_pixels_tab, | |
178 | h->qpel_avg, h->h264chroma.avg_h264_chroma_pixels_tab, | |
179 | h->h264dsp.weight_h264_pixels_tab, | |
180 | h->h264dsp.biweight_h264_pixels_tab); | |
181 | } else { | |
182 | FUNC(hl_motion_420)(h, dest_y, dest_cb, dest_cr, | |
183 | h->qpel_put, h->h264chroma.put_h264_chroma_pixels_tab, | |
184 | h->qpel_avg, h->h264chroma.avg_h264_chroma_pixels_tab, | |
185 | h->h264dsp.weight_h264_pixels_tab, | |
186 | h->h264dsp.biweight_h264_pixels_tab); | |
187 | } | |
188 | } | |
189 | ||
190 | hl_decode_mb_idct_luma(h, mb_type, is_h264, SIMPLE, transform_bypass, | |
191 | PIXEL_SHIFT, block_offset, linesize, dest_y, 0); | |
192 | ||
193 | if ((SIMPLE || !CONFIG_GRAY || !(h->flags & CODEC_FLAG_GRAY)) && | |
194 | (h->cbp & 0x30)) { | |
195 | uint8_t *dest[2] = { dest_cb, dest_cr }; | |
196 | if (transform_bypass) { | |
197 | if (IS_INTRA(mb_type) && h->sps.profile_idc == 244 && | |
198 | (h->chroma_pred_mode == VERT_PRED8x8 || | |
199 | h->chroma_pred_mode == HOR_PRED8x8)) { | |
200 | h->hpc.pred8x8_add[h->chroma_pred_mode](dest[0], | |
201 | block_offset + 16, | |
202 | h->mb + (16 * 16 * 1 << PIXEL_SHIFT), | |
203 | uvlinesize); | |
204 | h->hpc.pred8x8_add[h->chroma_pred_mode](dest[1], | |
205 | block_offset + 32, | |
206 | h->mb + (16 * 16 * 2 << PIXEL_SHIFT), | |
207 | uvlinesize); | |
208 | } else { | |
209 | idct_add = h->h264dsp.h264_add_pixels4_clear; | |
210 | for (j = 1; j < 3; j++) { | |
211 | for (i = j * 16; i < j * 16 + 4; i++) | |
212 | if (h->non_zero_count_cache[scan8[i]] || | |
213 | dctcoef_get(h->mb, PIXEL_SHIFT, i * 16)) | |
214 | idct_add(dest[j - 1] + block_offset[i], | |
215 | h->mb + (i * 16 << PIXEL_SHIFT), | |
216 | uvlinesize); | |
217 | if (chroma422) { | |
218 | for (i = j * 16 + 4; i < j * 16 + 8; i++) | |
219 | if (h->non_zero_count_cache[scan8[i + 4]] || | |
220 | dctcoef_get(h->mb, PIXEL_SHIFT, i * 16)) | |
221 | idct_add(dest[j - 1] + block_offset[i + 4], | |
222 | h->mb + (i * 16 << PIXEL_SHIFT), | |
223 | uvlinesize); | |
224 | } | |
225 | } | |
226 | } | |
227 | } else { | |
228 | if (is_h264) { | |
229 | int qp[2]; | |
230 | if (chroma422) { | |
231 | qp[0] = h->chroma_qp[0] + 3; | |
232 | qp[1] = h->chroma_qp[1] + 3; | |
233 | } else { | |
234 | qp[0] = h->chroma_qp[0]; | |
235 | qp[1] = h->chroma_qp[1]; | |
236 | } | |
237 | if (h->non_zero_count_cache[scan8[CHROMA_DC_BLOCK_INDEX + 0]]) | |
238 | h->h264dsp.h264_chroma_dc_dequant_idct(h->mb + (16 * 16 * 1 << PIXEL_SHIFT), | |
239 | h->dequant4_coeff[IS_INTRA(mb_type) ? 1 : 4][qp[0]][0]); | |
240 | if (h->non_zero_count_cache[scan8[CHROMA_DC_BLOCK_INDEX + 1]]) | |
241 | h->h264dsp.h264_chroma_dc_dequant_idct(h->mb + (16 * 16 * 2 << PIXEL_SHIFT), | |
242 | h->dequant4_coeff[IS_INTRA(mb_type) ? 2 : 5][qp[1]][0]); | |
243 | h->h264dsp.h264_idct_add8(dest, block_offset, | |
244 | h->mb, uvlinesize, | |
245 | h->non_zero_count_cache); | |
246 | } else if (CONFIG_SVQ3_DECODER) { | |
247 | h->h264dsp.h264_chroma_dc_dequant_idct(h->mb + 16 * 16 * 1, | |
248 | h->dequant4_coeff[IS_INTRA(mb_type) ? 1 : 4][h->chroma_qp[0]][0]); | |
249 | h->h264dsp.h264_chroma_dc_dequant_idct(h->mb + 16 * 16 * 2, | |
250 | h->dequant4_coeff[IS_INTRA(mb_type) ? 2 : 5][h->chroma_qp[1]][0]); | |
251 | for (j = 1; j < 3; j++) { | |
252 | for (i = j * 16; i < j * 16 + 4; i++) | |
253 | if (h->non_zero_count_cache[scan8[i]] || h->mb[i * 16]) { | |
254 | uint8_t *const ptr = dest[j - 1] + block_offset[i]; | |
255 | ff_svq3_add_idct_c(ptr, h->mb + i * 16, | |
256 | uvlinesize, | |
257 | ff_h264_chroma_qp[0][h->qscale + 12] - 12, 2); | |
258 | } | |
259 | } | |
260 | } | |
261 | } | |
262 | } | |
263 | } | |
264 | } | |
265 | ||
266 | #if !SIMPLE || BITS == 8 | |
267 | ||
268 | #undef CHROMA_IDC | |
269 | #define CHROMA_IDC 3 | |
270 | #include "h264_mc_template.c" | |
271 | ||
272 | static av_noinline void FUNC(hl_decode_mb_444)(H264Context *h) | |
273 | { | |
274 | const int mb_x = h->mb_x; | |
275 | const int mb_y = h->mb_y; | |
276 | const int mb_xy = h->mb_xy; | |
277 | const int mb_type = h->cur_pic.mb_type[mb_xy]; | |
278 | uint8_t *dest[3]; | |
279 | int linesize; | |
280 | int i, j, p; | |
281 | int *block_offset = &h->block_offset[0]; | |
282 | const int transform_bypass = !SIMPLE && (h->qscale == 0 && h->sps.transform_bypass); | |
283 | const int plane_count = (SIMPLE || !CONFIG_GRAY || !(h->flags & CODEC_FLAG_GRAY)) ? 3 : 1; | |
284 | ||
285 | for (p = 0; p < plane_count; p++) { | |
286 | dest[p] = h->cur_pic.f.data[p] + | |
287 | ((mb_x << PIXEL_SHIFT) + mb_y * h->linesize) * 16; | |
288 | h->vdsp.prefetch(dest[p] + (h->mb_x & 3) * 4 * h->linesize + (64 << PIXEL_SHIFT), | |
289 | h->linesize, 4); | |
290 | } | |
291 | ||
292 | h->list_counts[mb_xy] = h->list_count; | |
293 | ||
294 | if (!SIMPLE && MB_FIELD(h)) { | |
295 | linesize = h->mb_linesize = h->mb_uvlinesize = h->linesize * 2; | |
296 | block_offset = &h->block_offset[48]; | |
297 | if (mb_y & 1) // FIXME move out of this function? | |
298 | for (p = 0; p < 3; p++) | |
299 | dest[p] -= h->linesize * 15; | |
300 | if (FRAME_MBAFF(h)) { | |
301 | int list; | |
302 | for (list = 0; list < h->list_count; list++) { | |
303 | if (!USES_LIST(mb_type, list)) | |
304 | continue; | |
305 | if (IS_16X16(mb_type)) { | |
306 | int8_t *ref = &h->ref_cache[list][scan8[0]]; | |
307 | fill_rectangle(ref, 4, 4, 8, (16 + *ref) ^ (h->mb_y & 1), 1); | |
308 | } else { | |
309 | for (i = 0; i < 16; i += 4) { | |
310 | int ref = h->ref_cache[list][scan8[i]]; | |
311 | if (ref >= 0) | |
312 | fill_rectangle(&h->ref_cache[list][scan8[i]], 2, 2, | |
313 | 8, (16 + ref) ^ (h->mb_y & 1), 1); | |
314 | } | |
315 | } | |
316 | } | |
317 | } | |
318 | } else { | |
319 | linesize = h->mb_linesize = h->mb_uvlinesize = h->linesize; | |
320 | } | |
321 | ||
322 | if (!SIMPLE && IS_INTRA_PCM(mb_type)) { | |
323 | if (PIXEL_SHIFT) { | |
324 | const int bit_depth = h->sps.bit_depth_luma; | |
325 | GetBitContext gb; | |
326 | init_get_bits(&gb, h->intra_pcm_ptr, 768 * bit_depth); | |
327 | ||
328 | for (p = 0; p < plane_count; p++) | |
329 | for (i = 0; i < 16; i++) { | |
330 | uint16_t *tmp = (uint16_t *)(dest[p] + i * linesize); | |
331 | for (j = 0; j < 16; j++) | |
332 | tmp[j] = get_bits(&gb, bit_depth); | |
333 | } | |
334 | } else { | |
335 | for (p = 0; p < plane_count; p++) | |
336 | for (i = 0; i < 16; i++) | |
337 | memcpy(dest[p] + i * linesize, | |
338 | h->intra_pcm_ptr + p * 256 + i * 16, 16); | |
339 | } | |
340 | } else { | |
341 | if (IS_INTRA(mb_type)) { | |
342 | if (h->deblocking_filter) | |
343 | xchg_mb_border(h, dest[0], dest[1], dest[2], linesize, | |
344 | linesize, 1, 1, SIMPLE, PIXEL_SHIFT); | |
345 | ||
346 | for (p = 0; p < plane_count; p++) | |
347 | hl_decode_mb_predict_luma(h, mb_type, 1, SIMPLE, | |
348 | transform_bypass, PIXEL_SHIFT, | |
349 | block_offset, linesize, dest[p], p); | |
350 | ||
351 | if (h->deblocking_filter) | |
352 | xchg_mb_border(h, dest[0], dest[1], dest[2], linesize, | |
353 | linesize, 0, 1, SIMPLE, PIXEL_SHIFT); | |
354 | } else { | |
355 | FUNC(hl_motion_444)(h, dest[0], dest[1], dest[2], | |
356 | h->qpel_put, h->h264chroma.put_h264_chroma_pixels_tab, | |
357 | h->qpel_avg, h->h264chroma.avg_h264_chroma_pixels_tab, | |
358 | h->h264dsp.weight_h264_pixels_tab, | |
359 | h->h264dsp.biweight_h264_pixels_tab); | |
360 | } | |
361 | ||
362 | for (p = 0; p < plane_count; p++) | |
363 | hl_decode_mb_idct_luma(h, mb_type, 1, SIMPLE, transform_bypass, | |
364 | PIXEL_SHIFT, block_offset, linesize, | |
365 | dest[p], p); | |
366 | } | |
367 | } | |
368 | ||
369 | #endif |