1 /*
2 * AV1 video decoder
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21 #include "config_components.h"
22
23 #include "libavutil/film_grain_params.h"
24 #include "libavutil/pixdesc.h"
25 #include "libavutil/opt.h"
26 #include "avcodec.h"
27 #include "av1dec.h"
28 #include "bytestream.h"
29 #include "codec_internal.h"
30 #include "hwconfig.h"
31 #include "internal.h"
32 #include "profiles.h"
33 #include "thread.h"
34
35 /**< same with Div_Lut defined in spec 7.11.3.7 */
36 static const uint16_t div_lut[AV1_DIV_LUT_NUM] = {
37 16384, 16320, 16257, 16194, 16132, 16070, 16009, 15948, 15888, 15828, 15768,
38 15709, 15650, 15592, 15534, 15477, 15420, 15364, 15308, 15252, 15197, 15142,
39 15087, 15033, 14980, 14926, 14873, 14821, 14769, 14717, 14665, 14614, 14564,
40 14513, 14463, 14413, 14364, 14315, 14266, 14218, 14170, 14122, 14075, 14028,
41 13981, 13935, 13888, 13843, 13797, 13752, 13707, 13662, 13618, 13574, 13530,
42 13487, 13443, 13400, 13358, 13315, 13273, 13231, 13190, 13148, 13107, 13066,
43 13026, 12985, 12945, 12906, 12866, 12827, 12788, 12749, 12710, 12672, 12633,
44 12596, 12558, 12520, 12483, 12446, 12409, 12373, 12336, 12300, 12264, 12228,
45 12193, 12157, 12122, 12087, 12053, 12018, 11984, 11950, 11916, 11882, 11848,
46 11815, 11782, 11749, 11716, 11683, 11651, 11619, 11586, 11555, 11523, 11491,
47 11460, 11429, 11398, 11367, 11336, 11305, 11275, 11245, 11215, 11185, 11155,
48 11125, 11096, 11067, 11038, 11009, 10980, 10951, 10923, 10894, 10866, 10838,
49 10810, 10782, 10755, 10727, 10700, 10673, 10645, 10618, 10592, 10565, 10538,
50 10512, 10486, 10460, 10434, 10408, 10382, 10356, 10331, 10305, 10280, 10255,
51 10230, 10205, 10180, 10156, 10131, 10107, 10082, 10058, 10034, 10010, 9986,
52 9963, 9939, 9916, 9892, 9869, 9846, 9823, 9800, 9777, 9754, 9732,
53 9709, 9687, 9664, 9642, 9620, 9598, 9576, 9554, 9533, 9511, 9489,
54 9468, 9447, 9425, 9404, 9383, 9362, 9341, 9321, 9300, 9279, 9259,
55 9239, 9218, 9198, 9178, 9158, 9138, 9118, 9098, 9079, 9059, 9039,
56 9020, 9001, 8981, 8962, 8943, 8924, 8905, 8886, 8867, 8849, 8830,
57 8812, 8793, 8775, 8756, 8738, 8720, 8702, 8684, 8666, 8648, 8630,
58 8613, 8595, 8577, 8560, 8542, 8525, 8508, 8490, 8473, 8456, 8439,
59 8422, 8405, 8389, 8372, 8355, 8339, 8322, 8306, 8289, 8273, 8257,
60 8240, 8224, 8208, 8192
61 };
62
inverse_recenter(int r, uint32_t v)63 static uint32_t inverse_recenter(int r, uint32_t v)
64 {
65 if (v > 2 * r)
66 return v;
67 else if (v & 1)
68 return r - ((v + 1) >> 1);
69 else
70 return r + (v >> 1);
71 }
72
decode_unsigned_subexp_with_ref(uint32_t sub_exp, int mx, int r)73 static uint32_t decode_unsigned_subexp_with_ref(uint32_t sub_exp,
74 int mx, int r)
75 {
76 if ((r << 1) <= mx) {
77 return inverse_recenter(r, sub_exp);
78 } else {
79 return mx - 1 - inverse_recenter(mx - 1 - r, sub_exp);
80 }
81 }
82
decode_signed_subexp_with_ref(uint32_t sub_exp, int low, int high, int r)83 static int32_t decode_signed_subexp_with_ref(uint32_t sub_exp, int low,
84 int high, int r)
85 {
86 int32_t x = decode_unsigned_subexp_with_ref(sub_exp, high - low, r - low);
87 return x + low;
88 }
89
read_global_param(AV1DecContext *s, int type, int ref, int idx)90 static void read_global_param(AV1DecContext *s, int type, int ref, int idx)
91 {
92 uint8_t primary_frame, prev_frame;
93 uint32_t abs_bits, prec_bits, round, prec_diff, sub, mx;
94 int32_t r, prev_gm_param;
95
96 primary_frame = s->raw_frame_header->primary_ref_frame;
97 prev_frame = s->raw_frame_header->ref_frame_idx[primary_frame];
98 abs_bits = AV1_GM_ABS_ALPHA_BITS;
99 prec_bits = AV1_GM_ALPHA_PREC_BITS;
100
101 /* setup_past_independence() sets PrevGmParams to default values. We can
102 * simply point to the current's frame gm_params as they will be initialized
103 * with defaults at this point.
104 */
105 if (s->raw_frame_header->primary_ref_frame == AV1_PRIMARY_REF_NONE)
106 prev_gm_param = s->cur_frame.gm_params[ref][idx];
107 else
108 prev_gm_param = s->ref[prev_frame].gm_params[ref][idx];
109
110 if (idx < 2) {
111 if (type == AV1_WARP_MODEL_TRANSLATION) {
112 abs_bits = AV1_GM_ABS_TRANS_ONLY_BITS -
113 !s->raw_frame_header->allow_high_precision_mv;
114 prec_bits = AV1_GM_TRANS_ONLY_PREC_BITS -
115 !s->raw_frame_header->allow_high_precision_mv;
116 } else {
117 abs_bits = AV1_GM_ABS_TRANS_BITS;
118 prec_bits = AV1_GM_TRANS_PREC_BITS;
119 }
120 }
121 round = (idx % 3) == 2 ? (1 << AV1_WARPEDMODEL_PREC_BITS) : 0;
122 prec_diff = AV1_WARPEDMODEL_PREC_BITS - prec_bits;
123 sub = (idx % 3) == 2 ? (1 << prec_bits) : 0;
124 mx = 1 << abs_bits;
125 r = (prev_gm_param >> prec_diff) - sub;
126
127 s->cur_frame.gm_params[ref][idx] =
128 (decode_signed_subexp_with_ref(s->raw_frame_header->gm_params[ref][idx],
129 -mx, mx + 1, r) << prec_diff) + round;
130 }
131
round_two(uint64_t x, uint16_t n)132 static uint64_t round_two(uint64_t x, uint16_t n)
133 {
134 if (n == 0)
135 return x;
136 return ((x + ((uint64_t)1 << (n - 1))) >> n);
137 }
138
round_two_signed(int64_t x, uint16_t n)139 static int64_t round_two_signed(int64_t x, uint16_t n)
140 {
141 return ((x<0) ? -((int64_t)round_two(-x, n)) : (int64_t)round_two(x, n));
142 }
143
144 /**
145 * Resolve divisor process.
146 * see spec 7.11.3.7
147 */
resolve_divisor(uint32_t d, uint16_t *shift)148 static int16_t resolve_divisor(uint32_t d, uint16_t *shift)
149 {
150 int32_t e, f;
151
152 *shift = av_log2(d);
153 e = d - (1 << (*shift));
154 if (*shift > AV1_DIV_LUT_BITS)
155 f = round_two(e, *shift - AV1_DIV_LUT_BITS);
156 else
157 f = e << (AV1_DIV_LUT_BITS - (*shift));
158
159 *shift += AV1_DIV_LUT_PREC_BITS;
160
161 return div_lut[f];
162 }
163
164 /**
165 * check if global motion params is valid.
166 * see spec 7.11.3.6
167 */
get_shear_params_valid(AV1DecContext *s, int idx)168 static uint8_t get_shear_params_valid(AV1DecContext *s, int idx)
169 {
170 int16_t alpha, beta, gamma, delta, divf, divs;
171 int64_t v, w;
172 int32_t *param = &s->cur_frame.gm_params[idx][0];
173 if (param[2] <= 0)
174 return 0;
175
176 alpha = av_clip_int16(param[2] - (1 << AV1_WARPEDMODEL_PREC_BITS));
177 beta = av_clip_int16(param[3]);
178 divf = resolve_divisor(abs(param[2]), &divs);
179 v = (int64_t)param[4] * (1 << AV1_WARPEDMODEL_PREC_BITS);
180 w = (int64_t)param[3] * param[4];
181 gamma = av_clip_int16((int)round_two_signed((v * divf), divs));
182 delta = av_clip_int16(param[5] - (int)round_two_signed((w * divf), divs) - (1 << AV1_WARPEDMODEL_PREC_BITS));
183
184 alpha = round_two_signed(alpha, AV1_WARP_PARAM_REDUCE_BITS) << AV1_WARP_PARAM_REDUCE_BITS;
185 beta = round_two_signed(beta, AV1_WARP_PARAM_REDUCE_BITS) << AV1_WARP_PARAM_REDUCE_BITS;
186 gamma = round_two_signed(gamma, AV1_WARP_PARAM_REDUCE_BITS) << AV1_WARP_PARAM_REDUCE_BITS;
187 delta = round_two_signed(delta, AV1_WARP_PARAM_REDUCE_BITS) << AV1_WARP_PARAM_REDUCE_BITS;
188
189 if ((4 * abs(alpha) + 7 * abs(beta)) >= (1 << AV1_WARPEDMODEL_PREC_BITS) ||
190 (4 * abs(gamma) + 4 * abs(delta)) >= (1 << AV1_WARPEDMODEL_PREC_BITS))
191 return 0;
192
193 return 1;
194 }
195
196 /**
197 * update gm type/params, since cbs already implemented part of this funcation,
198 * so we don't need to full implement spec.
199 */
global_motion_params(AV1DecContext *s)200 static void global_motion_params(AV1DecContext *s)
201 {
202 const AV1RawFrameHeader *header = s->raw_frame_header;
203 int type, ref;
204
205 for (ref = AV1_REF_FRAME_LAST; ref <= AV1_REF_FRAME_ALTREF; ref++) {
206 s->cur_frame.gm_type[ref] = AV1_WARP_MODEL_IDENTITY;
207 for (int i = 0; i < 6; i++)
208 s->cur_frame.gm_params[ref][i] = (i % 3 == 2) ?
209 1 << AV1_WARPEDMODEL_PREC_BITS : 0;
210 }
211 if (header->frame_type == AV1_FRAME_KEY ||
212 header->frame_type == AV1_FRAME_INTRA_ONLY)
213 return;
214
215 for (ref = AV1_REF_FRAME_LAST; ref <= AV1_REF_FRAME_ALTREF; ref++) {
216 if (header->is_global[ref]) {
217 if (header->is_rot_zoom[ref]) {
218 type = AV1_WARP_MODEL_ROTZOOM;
219 } else {
220 type = header->is_translation[ref] ? AV1_WARP_MODEL_TRANSLATION
221 : AV1_WARP_MODEL_AFFINE;
222 }
223 } else {
224 type = AV1_WARP_MODEL_IDENTITY;
225 }
226 s->cur_frame.gm_type[ref] = type;
227
228 if (type >= AV1_WARP_MODEL_ROTZOOM) {
229 read_global_param(s, type, ref, 2);
230 read_global_param(s, type, ref, 3);
231 if (type == AV1_WARP_MODEL_AFFINE) {
232 read_global_param(s, type, ref, 4);
233 read_global_param(s, type, ref, 5);
234 } else {
235 s->cur_frame.gm_params[ref][4] = -s->cur_frame.gm_params[ref][3];
236 s->cur_frame.gm_params[ref][5] = s->cur_frame.gm_params[ref][2];
237 }
238 }
239 if (type >= AV1_WARP_MODEL_TRANSLATION) {
240 read_global_param(s, type, ref, 0);
241 read_global_param(s, type, ref, 1);
242 }
243 if (type <= AV1_WARP_MODEL_AFFINE) {
244 s->cur_frame.gm_invalid[ref] = !get_shear_params_valid(s, ref);
245 }
246 }
247 }
248
get_relative_dist(const AV1RawSequenceHeader *seq, unsigned int a, unsigned int b)249 static int get_relative_dist(const AV1RawSequenceHeader *seq,
250 unsigned int a, unsigned int b)
251 {
252 unsigned int diff = a - b;
253 unsigned int m = 1 << seq->order_hint_bits_minus_1;
254 return (diff & (m - 1)) - (diff & m);
255 }
256
skip_mode_params(AV1DecContext *s)257 static void skip_mode_params(AV1DecContext *s)
258 {
259 const AV1RawFrameHeader *header = s->raw_frame_header;
260 const AV1RawSequenceHeader *seq = s->raw_seq;
261
262 int forward_idx, backward_idx;
263 int forward_hint, backward_hint;
264 int second_forward_idx, second_forward_hint;
265 int ref_hint, dist, i;
266
267 if (!header->skip_mode_present)
268 return;
269
270 forward_idx = -1;
271 backward_idx = -1;
272 for (i = 0; i < AV1_REFS_PER_FRAME; i++) {
273 ref_hint = s->ref[header->ref_frame_idx[i]].raw_frame_header->order_hint;
274 dist = get_relative_dist(seq, ref_hint, header->order_hint);
275 if (dist < 0) {
276 if (forward_idx < 0 ||
277 get_relative_dist(seq, ref_hint, forward_hint) > 0) {
278 forward_idx = i;
279 forward_hint = ref_hint;
280 }
281 } else if (dist > 0) {
282 if (backward_idx < 0 ||
283 get_relative_dist(seq, ref_hint, backward_hint) < 0) {
284 backward_idx = i;
285 backward_hint = ref_hint;
286 }
287 }
288 }
289
290 if (forward_idx < 0) {
291 return;
292 } else if (backward_idx >= 0) {
293 s->cur_frame.skip_mode_frame_idx[0] =
294 AV1_REF_FRAME_LAST + FFMIN(forward_idx, backward_idx);
295 s->cur_frame.skip_mode_frame_idx[1] =
296 AV1_REF_FRAME_LAST + FFMAX(forward_idx, backward_idx);
297 return;
298 }
299
300 second_forward_idx = -1;
301 for (i = 0; i < AV1_REFS_PER_FRAME; i++) {
302 ref_hint = s->ref[header->ref_frame_idx[i]].raw_frame_header->order_hint;
303 if (get_relative_dist(seq, ref_hint, forward_hint) < 0) {
304 if (second_forward_idx < 0 ||
305 get_relative_dist(seq, ref_hint, second_forward_hint) > 0) {
306 second_forward_idx = i;
307 second_forward_hint = ref_hint;
308 }
309 }
310 }
311
312 if (second_forward_idx < 0)
313 return;
314
315 s->cur_frame.skip_mode_frame_idx[0] =
316 AV1_REF_FRAME_LAST + FFMIN(forward_idx, second_forward_idx);
317 s->cur_frame.skip_mode_frame_idx[1] =
318 AV1_REF_FRAME_LAST + FFMAX(forward_idx, second_forward_idx);
319 }
320
coded_lossless_param(AV1DecContext *s)321 static void coded_lossless_param(AV1DecContext *s)
322 {
323 const AV1RawFrameHeader *header = s->raw_frame_header;
324 int i;
325
326 if (header->delta_q_y_dc || header->delta_q_u_ac ||
327 header->delta_q_u_dc || header->delta_q_v_ac ||
328 header->delta_q_v_dc) {
329 s->cur_frame.coded_lossless = 0;
330 return;
331 }
332
333 s->cur_frame.coded_lossless = 1;
334 for (i = 0; i < AV1_MAX_SEGMENTS; i++) {
335 int qindex;
336 if (header->feature_enabled[i][AV1_SEG_LVL_ALT_Q]) {
337 qindex = (header->base_q_idx +
338 header->feature_value[i][AV1_SEG_LVL_ALT_Q]);
339 } else {
340 qindex = header->base_q_idx;
341 }
342 qindex = av_clip_uintp2(qindex, 8);
343
344 if (qindex) {
345 s->cur_frame.coded_lossless = 0;
346 return;
347 }
348 }
349 }
350
load_grain_params(AV1DecContext *s)351 static void load_grain_params(AV1DecContext *s)
352 {
353 const AV1RawFrameHeader *header = s->raw_frame_header;
354 const AV1RawFilmGrainParams *film_grain = &header->film_grain, *src;
355 AV1RawFilmGrainParams *dst = &s->cur_frame.film_grain;
356
357 if (!film_grain->apply_grain)
358 return;
359
360 if (film_grain->update_grain) {
361 memcpy(dst, film_grain, sizeof(*dst));
362 return;
363 }
364
365 src = &s->ref[film_grain->film_grain_params_ref_idx].film_grain;
366
367 memcpy(dst, src, sizeof(*dst));
368 dst->grain_seed = film_grain->grain_seed;
369 }
370
init_tile_data(AV1DecContext *s)371 static int init_tile_data(AV1DecContext *s)
372
373 {
374 int cur_tile_num =
375 s->raw_frame_header->tile_cols * s->raw_frame_header->tile_rows;
376 if (s->tile_num < cur_tile_num) {
377 int ret = av_reallocp_array(&s->tile_group_info, cur_tile_num,
378 sizeof(TileGroupInfo));
379 if (ret < 0) {
380 s->tile_num = 0;
381 return ret;
382 }
383 }
384 s->tile_num = cur_tile_num;
385
386 return 0;
387 }
388
get_tiles_info(AVCodecContext *avctx, const AV1RawTileGroup *tile_group)389 static int get_tiles_info(AVCodecContext *avctx, const AV1RawTileGroup *tile_group)
390 {
391 AV1DecContext *s = avctx->priv_data;
392 GetByteContext gb;
393 uint16_t tile_num, tile_row, tile_col;
394 uint32_t size = 0, size_bytes = 0;
395
396 bytestream2_init(&gb, tile_group->tile_data.data,
397 tile_group->tile_data.data_size);
398 s->tg_start = tile_group->tg_start;
399 s->tg_end = tile_group->tg_end;
400
401 for (tile_num = tile_group->tg_start; tile_num <= tile_group->tg_end; tile_num++) {
402 tile_row = tile_num / s->raw_frame_header->tile_cols;
403 tile_col = tile_num % s->raw_frame_header->tile_cols;
404
405 if (tile_num == tile_group->tg_end) {
406 s->tile_group_info[tile_num].tile_size = bytestream2_get_bytes_left(&gb);
407 s->tile_group_info[tile_num].tile_offset = bytestream2_tell(&gb);
408 s->tile_group_info[tile_num].tile_row = tile_row;
409 s->tile_group_info[tile_num].tile_column = tile_col;
410 return 0;
411 }
412 size_bytes = s->raw_frame_header->tile_size_bytes_minus1 + 1;
413 if (bytestream2_get_bytes_left(&gb) < size_bytes)
414 return AVERROR_INVALIDDATA;
415 size = 0;
416 for (int i = 0; i < size_bytes; i++)
417 size |= bytestream2_get_byteu(&gb) << 8 * i;
418 if (bytestream2_get_bytes_left(&gb) <= size)
419 return AVERROR_INVALIDDATA;
420 size++;
421
422 s->tile_group_info[tile_num].tile_size = size;
423 s->tile_group_info[tile_num].tile_offset = bytestream2_tell(&gb);
424 s->tile_group_info[tile_num].tile_row = tile_row;
425 s->tile_group_info[tile_num].tile_column = tile_col;
426
427 bytestream2_skipu(&gb, size);
428 }
429
430 return 0;
431
432 }
433
get_pixel_format(AVCodecContext *avctx)434 static int get_pixel_format(AVCodecContext *avctx)
435 {
436 AV1DecContext *s = avctx->priv_data;
437 const AV1RawSequenceHeader *seq = s->raw_seq;
438 uint8_t bit_depth;
439 int ret;
440 enum AVPixelFormat pix_fmt = AV_PIX_FMT_NONE;
441 #define HWACCEL_MAX (CONFIG_AV1_DXVA2_HWACCEL + \
442 CONFIG_AV1_D3D11VA_HWACCEL * 2 + \
443 CONFIG_AV1_NVDEC_HWACCEL + \
444 CONFIG_AV1_VAAPI_HWACCEL + \
445 CONFIG_AV1_VDPAU_HWACCEL)
446 enum AVPixelFormat pix_fmts[HWACCEL_MAX + 2], *fmtp = pix_fmts;
447
448 if (seq->seq_profile == 2 && seq->color_config.high_bitdepth)
449 bit_depth = seq->color_config.twelve_bit ? 12 : 10;
450 else if (seq->seq_profile <= 2)
451 bit_depth = seq->color_config.high_bitdepth ? 10 : 8;
452 else {
453 av_log(avctx, AV_LOG_ERROR,
454 "Unknown AV1 profile %d.\n", seq->seq_profile);
455 return -1;
456 }
457
458 if (!seq->color_config.mono_chrome) {
459 // 4:4:4 x:0 y:0, 4:2:2 x:1 y:0, 4:2:0 x:1 y:1
460 if (seq->color_config.subsampling_x == 0 &&
461 seq->color_config.subsampling_y == 0) {
462 if (bit_depth == 8)
463 pix_fmt = AV_PIX_FMT_YUV444P;
464 else if (bit_depth == 10)
465 pix_fmt = AV_PIX_FMT_YUV444P10;
466 else if (bit_depth == 12)
467 pix_fmt = AV_PIX_FMT_YUV444P12;
468 else
469 av_log(avctx, AV_LOG_WARNING, "Unknown AV1 pixel format.\n");
470 } else if (seq->color_config.subsampling_x == 1 &&
471 seq->color_config.subsampling_y == 0) {
472 if (bit_depth == 8)
473 pix_fmt = AV_PIX_FMT_YUV422P;
474 else if (bit_depth == 10)
475 pix_fmt = AV_PIX_FMT_YUV422P10;
476 else if (bit_depth == 12)
477 pix_fmt = AV_PIX_FMT_YUV422P12;
478 else
479 av_log(avctx, AV_LOG_WARNING, "Unknown AV1 pixel format.\n");
480 } else if (seq->color_config.subsampling_x == 1 &&
481 seq->color_config.subsampling_y == 1) {
482 if (bit_depth == 8)
483 pix_fmt = AV_PIX_FMT_YUV420P;
484 else if (bit_depth == 10)
485 pix_fmt = AV_PIX_FMT_YUV420P10;
486 else if (bit_depth == 12)
487 pix_fmt = AV_PIX_FMT_YUV420P12;
488 else
489 av_log(avctx, AV_LOG_WARNING, "Unknown AV1 pixel format.\n");
490 }
491 } else {
492 if (bit_depth == 8)
493 pix_fmt = AV_PIX_FMT_GRAY8;
494 else if (bit_depth == 10)
495 pix_fmt = AV_PIX_FMT_GRAY10;
496 else if (bit_depth == 12)
497 pix_fmt = AV_PIX_FMT_GRAY12;
498 else
499 av_log(avctx, AV_LOG_WARNING, "Unknown AV1 pixel format.\n");
500 }
501
502 av_log(avctx, AV_LOG_DEBUG, "AV1 decode get format: %s.\n",
503 av_get_pix_fmt_name(pix_fmt));
504
505 if (pix_fmt == AV_PIX_FMT_NONE)
506 return -1;
507
508 switch (pix_fmt) {
509 case AV_PIX_FMT_YUV420P:
510 #if CONFIG_AV1_DXVA2_HWACCEL
511 *fmtp++ = AV_PIX_FMT_DXVA2_VLD;
512 #endif
513 #if CONFIG_AV1_D3D11VA_HWACCEL
514 *fmtp++ = AV_PIX_FMT_D3D11VA_VLD;
515 *fmtp++ = AV_PIX_FMT_D3D11;
516 #endif
517 #if CONFIG_AV1_NVDEC_HWACCEL
518 *fmtp++ = AV_PIX_FMT_CUDA;
519 #endif
520 #if CONFIG_AV1_VAAPI_HWACCEL
521 *fmtp++ = AV_PIX_FMT_VAAPI;
522 #endif
523 #if CONFIG_AV1_VDPAU_HWACCEL
524 *fmtp++ = AV_PIX_FMT_VDPAU;
525 #endif
526 break;
527 case AV_PIX_FMT_YUV420P10:
528 #if CONFIG_AV1_DXVA2_HWACCEL
529 *fmtp++ = AV_PIX_FMT_DXVA2_VLD;
530 #endif
531 #if CONFIG_AV1_D3D11VA_HWACCEL
532 *fmtp++ = AV_PIX_FMT_D3D11VA_VLD;
533 *fmtp++ = AV_PIX_FMT_D3D11;
534 #endif
535 #if CONFIG_AV1_NVDEC_HWACCEL
536 *fmtp++ = AV_PIX_FMT_CUDA;
537 #endif
538 #if CONFIG_AV1_VAAPI_HWACCEL
539 *fmtp++ = AV_PIX_FMT_VAAPI;
540 #endif
541 #if CONFIG_AV1_VDPAU_HWACCEL
542 *fmtp++ = AV_PIX_FMT_VDPAU;
543 #endif
544 break;
545 case AV_PIX_FMT_GRAY8:
546 #if CONFIG_AV1_NVDEC_HWACCEL
547 *fmtp++ = AV_PIX_FMT_CUDA;
548 #endif
549 break;
550 case AV_PIX_FMT_GRAY10:
551 #if CONFIG_AV1_NVDEC_HWACCEL
552 *fmtp++ = AV_PIX_FMT_CUDA;
553 #endif
554 break;
555 }
556
557 *fmtp++ = pix_fmt;
558 *fmtp = AV_PIX_FMT_NONE;
559
560 ret = ff_thread_get_format(avctx, pix_fmts);
561 if (ret < 0)
562 return ret;
563
564 /**
565 * check if the HW accel is inited correctly. If not, return un-implemented.
566 * Since now the av1 decoder doesn't support native decode, if it will be
567 * implemented in the future, need remove this check.
568 */
569 if (!avctx->hwaccel) {
570 av_log(avctx, AV_LOG_ERROR, "Your platform doesn't suppport"
571 " hardware accelerated AV1 decoding.\n");
572 return AVERROR(ENOSYS);
573 }
574
575 s->pix_fmt = pix_fmt;
576 avctx->pix_fmt = ret;
577
578 return 0;
579 }
580
av1_frame_unref(AVCodecContext *avctx, AV1Frame *f)581 static void av1_frame_unref(AVCodecContext *avctx, AV1Frame *f)
582 {
583 ff_thread_release_buffer(avctx, f->f);
584 av_buffer_unref(&f->hwaccel_priv_buf);
585 f->hwaccel_picture_private = NULL;
586 av_buffer_unref(&f->header_ref);
587 f->raw_frame_header = NULL;
588 f->spatial_id = f->temporal_id = 0;
589 memset(f->skip_mode_frame_idx, 0,
590 2 * sizeof(uint8_t));
591 memset(&f->film_grain, 0, sizeof(f->film_grain));
592 f->coded_lossless = 0;
593 }
594
av1_frame_ref(AVCodecContext *avctx, AV1Frame *dst, const AV1Frame *src)595 static int av1_frame_ref(AVCodecContext *avctx, AV1Frame *dst, const AV1Frame *src)
596 {
597 int ret;
598
599 ret = av_buffer_replace(&dst->header_ref, src->header_ref);
600 if (ret < 0)
601 return ret;
602
603 dst->raw_frame_header = src->raw_frame_header;
604
605 if (!src->f->buf[0])
606 return 0;
607
608 ret = av_frame_ref(dst->f, src->f);
609 if (ret < 0)
610 goto fail;
611
612 if (src->hwaccel_picture_private) {
613 dst->hwaccel_priv_buf = av_buffer_ref(src->hwaccel_priv_buf);
614 if (!dst->hwaccel_priv_buf)
615 goto fail;
616 dst->hwaccel_picture_private = dst->hwaccel_priv_buf->data;
617 }
618
619 dst->spatial_id = src->spatial_id;
620 dst->temporal_id = src->temporal_id;
621 memcpy(dst->gm_invalid,
622 src->gm_invalid,
623 AV1_NUM_REF_FRAMES * sizeof(uint8_t));
624 memcpy(dst->gm_type,
625 src->gm_type,
626 AV1_NUM_REF_FRAMES * sizeof(uint8_t));
627 memcpy(dst->gm_params,
628 src->gm_params,
629 AV1_NUM_REF_FRAMES * 6 * sizeof(int32_t));
630 memcpy(dst->skip_mode_frame_idx,
631 src->skip_mode_frame_idx,
632 2 * sizeof(uint8_t));
633 memcpy(&dst->film_grain,
634 &src->film_grain,
635 sizeof(dst->film_grain));
636 dst->coded_lossless = src->coded_lossless;
637
638 return 0;
639
640 fail:
641 av1_frame_unref(avctx, dst);
642 return AVERROR(ENOMEM);
643 }
644
av1_decode_free(AVCodecContext *avctx)645 static av_cold int av1_decode_free(AVCodecContext *avctx)
646 {
647 AV1DecContext *s = avctx->priv_data;
648
649 for (int i = 0; i < FF_ARRAY_ELEMS(s->ref); i++) {
650 av1_frame_unref(avctx, &s->ref[i]);
651 av_frame_free(&s->ref[i].f);
652 }
653 av1_frame_unref(avctx, &s->cur_frame);
654 av_frame_free(&s->cur_frame.f);
655
656 av_buffer_unref(&s->seq_ref);
657 av_buffer_unref(&s->header_ref);
658 av_freep(&s->tile_group_info);
659
660 ff_cbs_fragment_free(&s->current_obu);
661 ff_cbs_close(&s->cbc);
662
663 return 0;
664 }
665
set_context_with_sequence(AVCodecContext *avctx, const AV1RawSequenceHeader *seq)666 static int set_context_with_sequence(AVCodecContext *avctx,
667 const AV1RawSequenceHeader *seq)
668 {
669 int width = seq->max_frame_width_minus_1 + 1;
670 int height = seq->max_frame_height_minus_1 + 1;
671
672 avctx->profile = seq->seq_profile;
673 avctx->level = seq->seq_level_idx[0];
674
675 avctx->color_range =
676 seq->color_config.color_range ? AVCOL_RANGE_JPEG : AVCOL_RANGE_MPEG;
677 avctx->color_primaries = seq->color_config.color_primaries;
678 avctx->colorspace = seq->color_config.color_primaries;
679 avctx->color_trc = seq->color_config.transfer_characteristics;
680
681 switch (seq->color_config.chroma_sample_position) {
682 case AV1_CSP_VERTICAL:
683 avctx->chroma_sample_location = AVCHROMA_LOC_LEFT;
684 break;
685 case AV1_CSP_COLOCATED:
686 avctx->chroma_sample_location = AVCHROMA_LOC_TOPLEFT;
687 break;
688 }
689
690 if (seq->film_grain_params_present)
691 avctx->properties |= FF_CODEC_PROPERTY_FILM_GRAIN;
692 else
693 avctx->properties &= ~FF_CODEC_PROPERTY_FILM_GRAIN;
694
695 if (avctx->width != width || avctx->height != height) {
696 int ret = ff_set_dimensions(avctx, width, height);
697 if (ret < 0)
698 return ret;
699 }
700 avctx->sample_aspect_ratio = (AVRational) { 1, 1 };
701
702 if (seq->timing_info.num_units_in_display_tick &&
703 seq->timing_info.time_scale) {
704 av_reduce(&avctx->framerate.den, &avctx->framerate.num,
705 seq->timing_info.num_units_in_display_tick,
706 seq->timing_info.time_scale,
707 INT_MAX);
708 if (seq->timing_info.equal_picture_interval)
709 avctx->ticks_per_frame = seq->timing_info.num_ticks_per_picture_minus_1 + 1;
710 }
711
712 return 0;
713 }
714
update_context_with_frame_header(AVCodecContext *avctx, const AV1RawFrameHeader *header)715 static int update_context_with_frame_header(AVCodecContext *avctx,
716 const AV1RawFrameHeader *header)
717 {
718 AVRational aspect_ratio;
719 int width = header->frame_width_minus_1 + 1;
720 int height = header->frame_height_minus_1 + 1;
721 int r_width = header->render_width_minus_1 + 1;
722 int r_height = header->render_height_minus_1 + 1;
723 int ret;
724
725 if (avctx->width != width || avctx->height != height) {
726 ret = ff_set_dimensions(avctx, width, height);
727 if (ret < 0)
728 return ret;
729 }
730
731 av_reduce(&aspect_ratio.num, &aspect_ratio.den,
732 (int64_t)height * r_width,
733 (int64_t)width * r_height,
734 INT_MAX);
735
736 if (av_cmp_q(avctx->sample_aspect_ratio, aspect_ratio)) {
737 ret = ff_set_sar(avctx, aspect_ratio);
738 if (ret < 0)
739 return ret;
740 }
741
742 return 0;
743 }
744
av1_decode_init(AVCodecContext *avctx)745 static av_cold int av1_decode_init(AVCodecContext *avctx)
746 {
747 AV1DecContext *s = avctx->priv_data;
748 AV1RawSequenceHeader *seq;
749 int ret;
750
751 s->avctx = avctx;
752 s->pix_fmt = AV_PIX_FMT_NONE;
753
754 for (int i = 0; i < FF_ARRAY_ELEMS(s->ref); i++) {
755 s->ref[i].f = av_frame_alloc();
756 if (!s->ref[i].f) {
757 av_log(avctx, AV_LOG_ERROR,
758 "Failed to allocate reference frame buffer %d.\n", i);
759 return AVERROR(ENOMEM);
760 }
761 }
762
763 s->cur_frame.f = av_frame_alloc();
764 if (!s->cur_frame.f) {
765 av_log(avctx, AV_LOG_ERROR,
766 "Failed to allocate current frame buffer.\n");
767 return AVERROR(ENOMEM);
768 }
769
770 ret = ff_cbs_init(&s->cbc, AV_CODEC_ID_AV1, avctx);
771 if (ret < 0)
772 return ret;
773
774 av_opt_set_int(s->cbc->priv_data, "operating_point", s->operating_point, 0);
775
776 if (avctx->extradata && avctx->extradata_size) {
777 ret = ff_cbs_read_extradata_from_codec(s->cbc,
778 &s->current_obu,
779 avctx);
780 if (ret < 0) {
781 av_log(avctx, AV_LOG_WARNING, "Failed to read extradata.\n");
782 return ret;
783 }
784
785 seq = ((CodedBitstreamAV1Context *)(s->cbc->priv_data))->sequence_header;
786 if (!seq) {
787 av_log(avctx, AV_LOG_WARNING, "No sequence header available.\n");
788 goto end;
789 }
790
791 ret = set_context_with_sequence(avctx, seq);
792 if (ret < 0) {
793 av_log(avctx, AV_LOG_WARNING, "Failed to set decoder context.\n");
794 goto end;
795 }
796
797 end:
798 ff_cbs_fragment_reset(&s->current_obu);
799 }
800
801 return ret;
802 }
803
av1_frame_alloc(AVCodecContext *avctx, AV1Frame *f)804 static int av1_frame_alloc(AVCodecContext *avctx, AV1Frame *f)
805 {
806 AV1DecContext *s = avctx->priv_data;
807 AV1RawFrameHeader *header= s->raw_frame_header;
808 AVFrame *frame;
809 int ret;
810
811 ret = update_context_with_frame_header(avctx, header);
812 if (ret < 0) {
813 av_log(avctx, AV_LOG_ERROR, "Failed to update context with frame header\n");
814 return ret;
815 }
816
817 if ((ret = ff_thread_get_buffer(avctx, f->f, AV_GET_BUFFER_FLAG_REF)) < 0)
818 goto fail;
819
820 frame = f->f;
821 frame->key_frame = header->frame_type == AV1_FRAME_KEY;
822
823 switch (header->frame_type) {
824 case AV1_FRAME_KEY:
825 case AV1_FRAME_INTRA_ONLY:
826 frame->pict_type = AV_PICTURE_TYPE_I;
827 break;
828 case AV1_FRAME_INTER:
829 frame->pict_type = AV_PICTURE_TYPE_P;
830 break;
831 case AV1_FRAME_SWITCH:
832 frame->pict_type = AV_PICTURE_TYPE_SP;
833 break;
834 }
835
836 if (avctx->hwaccel) {
837 const AVHWAccel *hwaccel = avctx->hwaccel;
838 if (hwaccel->frame_priv_data_size) {
839 f->hwaccel_priv_buf =
840 av_buffer_allocz(hwaccel->frame_priv_data_size);
841 if (!f->hwaccel_priv_buf) {
842 ret = AVERROR(ENOMEM);
843 goto fail;
844 }
845 f->hwaccel_picture_private = f->hwaccel_priv_buf->data;
846 }
847 }
848 return 0;
849
850 fail:
851 av1_frame_unref(avctx, f);
852 return ret;
853 }
854
export_film_grain(AVCodecContext *avctx, AVFrame *frame)855 static int export_film_grain(AVCodecContext *avctx, AVFrame *frame)
856 {
857 AV1DecContext *s = avctx->priv_data;
858 const AV1RawFilmGrainParams *film_grain = &s->cur_frame.film_grain;
859 AVFilmGrainParams *fgp;
860 AVFilmGrainAOMParams *aom;
861
862 if (!film_grain->apply_grain)
863 return 0;
864
865 fgp = av_film_grain_params_create_side_data(frame);
866 if (!fgp)
867 return AVERROR(ENOMEM);
868
869 fgp->type = AV_FILM_GRAIN_PARAMS_AV1;
870 fgp->seed = film_grain->grain_seed;
871
872 aom = &fgp->codec.aom;
873 aom->chroma_scaling_from_luma = film_grain->chroma_scaling_from_luma;
874 aom->scaling_shift = film_grain->grain_scaling_minus_8 + 8;
875 aom->ar_coeff_lag = film_grain->ar_coeff_lag;
876 aom->ar_coeff_shift = film_grain->ar_coeff_shift_minus_6 + 6;
877 aom->grain_scale_shift = film_grain->grain_scale_shift;
878 aom->overlap_flag = film_grain->overlap_flag;
879 aom->limit_output_range = film_grain->clip_to_restricted_range;
880
881 aom->num_y_points = film_grain->num_y_points;
882 for (int i = 0; i < film_grain->num_y_points; i++) {
883 aom->y_points[i][0] = film_grain->point_y_value[i];
884 aom->y_points[i][1] = film_grain->point_y_scaling[i];
885 }
886 aom->num_uv_points[0] = film_grain->num_cb_points;
887 for (int i = 0; i < film_grain->num_cb_points; i++) {
888 aom->uv_points[0][i][0] = film_grain->point_cb_value[i];
889 aom->uv_points[0][i][1] = film_grain->point_cb_scaling[i];
890 }
891 aom->num_uv_points[1] = film_grain->num_cr_points;
892 for (int i = 0; i < film_grain->num_cr_points; i++) {
893 aom->uv_points[1][i][0] = film_grain->point_cr_value[i];
894 aom->uv_points[1][i][1] = film_grain->point_cr_scaling[i];
895 }
896
897 for (int i = 0; i < 24; i++) {
898 aom->ar_coeffs_y[i] = film_grain->ar_coeffs_y_plus_128[i] - 128;
899 }
900 for (int i = 0; i < 25; i++) {
901 aom->ar_coeffs_uv[0][i] = film_grain->ar_coeffs_cb_plus_128[i] - 128;
902 aom->ar_coeffs_uv[1][i] = film_grain->ar_coeffs_cr_plus_128[i] - 128;
903 }
904
905 aom->uv_mult[0] = film_grain->cb_mult;
906 aom->uv_mult[1] = film_grain->cr_mult;
907 aom->uv_mult_luma[0] = film_grain->cb_luma_mult;
908 aom->uv_mult_luma[1] = film_grain->cr_luma_mult;
909 aom->uv_offset[0] = film_grain->cb_offset;
910 aom->uv_offset[1] = film_grain->cr_offset;
911
912 return 0;
913 }
914
set_output_frame(AVCodecContext *avctx, AVFrame *frame, const AVPacket *pkt, int *got_frame)915 static int set_output_frame(AVCodecContext *avctx, AVFrame *frame,
916 const AVPacket *pkt, int *got_frame)
917 {
918 AV1DecContext *s = avctx->priv_data;
919 const AVFrame *srcframe = s->cur_frame.f;
920 int ret;
921
922 // TODO: all layers
923 if (s->operating_point_idc &&
924 av_log2(s->operating_point_idc >> 8) > s->cur_frame.spatial_id)
925 return 0;
926
927 ret = av_frame_ref(frame, srcframe);
928 if (ret < 0)
929 return ret;
930
931 if (avctx->export_side_data & AV_CODEC_EXPORT_DATA_FILM_GRAIN) {
932 ret = export_film_grain(avctx, frame);
933 if (ret < 0) {
934 av_frame_unref(frame);
935 return ret;
936 }
937 }
938
939 frame->pts = pkt->pts;
940 frame->pkt_dts = pkt->dts;
941 frame->pkt_size = pkt->size;
942
943 *got_frame = 1;
944
945 return 0;
946 }
947
update_reference_list(AVCodecContext *avctx)948 static int update_reference_list(AVCodecContext *avctx)
949 {
950 AV1DecContext *s = avctx->priv_data;
951 const AV1RawFrameHeader *header = s->raw_frame_header;
952 int ret;
953
954 for (int i = 0; i < AV1_NUM_REF_FRAMES; i++) {
955 if (header->refresh_frame_flags & (1 << i)) {
956 av1_frame_unref(avctx, &s->ref[i]);
957 if ((ret = av1_frame_ref(avctx, &s->ref[i], &s->cur_frame)) < 0) {
958 av_log(avctx, AV_LOG_ERROR,
959 "Failed to update frame %d in reference list\n", i);
960 return ret;
961 }
962 }
963 }
964 return 0;
965 }
966
get_current_frame(AVCodecContext *avctx)967 static int get_current_frame(AVCodecContext *avctx)
968 {
969 AV1DecContext *s = avctx->priv_data;
970 int ret;
971
972 av1_frame_unref(avctx, &s->cur_frame);
973
974 s->cur_frame.header_ref = av_buffer_ref(s->header_ref);
975 if (!s->cur_frame.header_ref)
976 return AVERROR(ENOMEM);
977
978 s->cur_frame.raw_frame_header = s->raw_frame_header;
979
980 ret = init_tile_data(s);
981 if (ret < 0) {
982 av_log(avctx, AV_LOG_ERROR, "Failed to init tile data.\n");
983 return ret;
984 }
985
986 if ((avctx->skip_frame >= AVDISCARD_NONINTRA &&
987 (s->raw_frame_header->frame_type != AV1_FRAME_KEY &&
988 s->raw_frame_header->frame_type != AV1_FRAME_INTRA_ONLY)) ||
989 (avctx->skip_frame >= AVDISCARD_NONKEY &&
990 s->raw_frame_header->frame_type != AV1_FRAME_KEY) ||
991 avctx->skip_frame >= AVDISCARD_ALL)
992 return 0;
993
994 ret = av1_frame_alloc(avctx, &s->cur_frame);
995 if (ret < 0) {
996 av_log(avctx, AV_LOG_ERROR,
997 "Failed to allocate space for current frame.\n");
998 return ret;
999 }
1000
1001 global_motion_params(s);
1002 skip_mode_params(s);
1003 coded_lossless_param(s);
1004 load_grain_params(s);
1005
1006 return ret;
1007 }
1008
av1_decode_frame(AVCodecContext *avctx, AVFrame *frame, int *got_frame, AVPacket *pkt)1009 static int av1_decode_frame(AVCodecContext *avctx, AVFrame *frame,
1010 int *got_frame, AVPacket *pkt)
1011 {
1012 AV1DecContext *s = avctx->priv_data;
1013 AV1RawTileGroup *raw_tile_group = NULL;
1014 int ret;
1015
1016 ret = ff_cbs_read_packet(s->cbc, &s->current_obu, pkt);
1017 if (ret < 0) {
1018 av_log(avctx, AV_LOG_ERROR, "Failed to read packet.\n");
1019 goto end;
1020 }
1021 av_log(avctx, AV_LOG_DEBUG, "Total obu for this frame:%d.\n",
1022 s->current_obu.nb_units);
1023
1024 for (int i = 0; i < s->current_obu.nb_units; i++) {
1025 CodedBitstreamUnit *unit = &s->current_obu.units[i];
1026 AV1RawOBU *obu = unit->content;
1027 const AV1RawOBUHeader *header;
1028
1029 if (!obu)
1030 continue;
1031
1032 header = &obu->header;
1033 av_log(avctx, AV_LOG_DEBUG, "Obu idx:%d, obu type:%d.\n", i, unit->type);
1034
1035 switch (unit->type) {
1036 case AV1_OBU_SEQUENCE_HEADER:
1037 av_buffer_unref(&s->seq_ref);
1038 s->seq_ref = av_buffer_ref(unit->content_ref);
1039 if (!s->seq_ref) {
1040 ret = AVERROR(ENOMEM);
1041 goto end;
1042 }
1043
1044 s->raw_seq = &obu->obu.sequence_header;
1045
1046 ret = set_context_with_sequence(avctx, s->raw_seq);
1047 if (ret < 0) {
1048 av_log(avctx, AV_LOG_ERROR, "Failed to set context.\n");
1049 s->raw_seq = NULL;
1050 goto end;
1051 }
1052
1053 s->operating_point_idc = s->raw_seq->operating_point_idc[s->operating_point];
1054
1055 if (s->pix_fmt == AV_PIX_FMT_NONE) {
1056 ret = get_pixel_format(avctx);
1057 if (ret < 0) {
1058 av_log(avctx, AV_LOG_ERROR,
1059 "Failed to get pixel format.\n");
1060 s->raw_seq = NULL;
1061 goto end;
1062 }
1063 }
1064
1065 if (avctx->hwaccel && avctx->hwaccel->decode_params) {
1066 ret = avctx->hwaccel->decode_params(avctx, unit->type, unit->data,
1067 unit->data_size);
1068 if (ret < 0) {
1069 av_log(avctx, AV_LOG_ERROR, "HW accel decode params fail.\n");
1070 s->raw_seq = NULL;
1071 goto end;
1072 }
1073 }
1074 break;
1075 case AV1_OBU_REDUNDANT_FRAME_HEADER:
1076 if (s->raw_frame_header)
1077 break;
1078 // fall-through
1079 case AV1_OBU_FRAME:
1080 case AV1_OBU_FRAME_HEADER:
1081 if (!s->raw_seq) {
1082 av_log(avctx, AV_LOG_ERROR, "Missing Sequence Header.\n");
1083 ret = AVERROR_INVALIDDATA;
1084 goto end;
1085 }
1086
1087 av_buffer_unref(&s->header_ref);
1088 s->header_ref = av_buffer_ref(unit->content_ref);
1089 if (!s->header_ref) {
1090 ret = AVERROR(ENOMEM);
1091 goto end;
1092 }
1093
1094 if (unit->type == AV1_OBU_FRAME)
1095 s->raw_frame_header = &obu->obu.frame.header;
1096 else
1097 s->raw_frame_header = &obu->obu.frame_header;
1098
1099 if (s->raw_frame_header->show_existing_frame) {
1100 av1_frame_unref(avctx, &s->cur_frame);
1101
1102 ret = av1_frame_ref(avctx, &s->cur_frame,
1103 &s->ref[s->raw_frame_header->frame_to_show_map_idx]);
1104 if (ret < 0) {
1105 av_log(avctx, AV_LOG_ERROR, "Failed to get reference frame.\n");
1106 goto end;
1107 }
1108
1109 ret = update_reference_list(avctx);
1110 if (ret < 0) {
1111 av_log(avctx, AV_LOG_ERROR, "Failed to update reference list.\n");
1112 goto end;
1113 }
1114
1115 if (s->cur_frame.f->buf[0]) {
1116 ret = set_output_frame(avctx, frame, pkt, got_frame);
1117 if (ret < 0)
1118 av_log(avctx, AV_LOG_ERROR, "Set output frame error.\n");
1119 }
1120
1121 s->raw_frame_header = NULL;
1122
1123 goto end;
1124 }
1125
1126 ret = get_current_frame(avctx);
1127 if (ret < 0) {
1128 av_log(avctx, AV_LOG_ERROR, "Get current frame error\n");
1129 goto end;
1130 }
1131
1132 s->cur_frame.spatial_id = header->spatial_id;
1133 s->cur_frame.temporal_id = header->temporal_id;
1134
1135 if (avctx->hwaccel && s->cur_frame.f->buf[0]) {
1136 ret = avctx->hwaccel->start_frame(avctx, unit->data,
1137 unit->data_size);
1138 if (ret < 0) {
1139 av_log(avctx, AV_LOG_ERROR, "HW accel start frame fail.\n");
1140 goto end;
1141 }
1142 }
1143 if (unit->type != AV1_OBU_FRAME)
1144 break;
1145 // fall-through
1146 case AV1_OBU_TILE_GROUP:
1147 if (!s->raw_frame_header) {
1148 av_log(avctx, AV_LOG_ERROR, "Missing Frame Header.\n");
1149 ret = AVERROR_INVALIDDATA;
1150 goto end;
1151 }
1152
1153 if (unit->type == AV1_OBU_FRAME)
1154 raw_tile_group = &obu->obu.frame.tile_group;
1155 else
1156 raw_tile_group = &obu->obu.tile_group;
1157
1158 ret = get_tiles_info(avctx, raw_tile_group);
1159 if (ret < 0)
1160 goto end;
1161
1162 if (avctx->hwaccel && s->cur_frame.f->buf[0]) {
1163 ret = avctx->hwaccel->decode_slice(avctx,
1164 raw_tile_group->tile_data.data,
1165 raw_tile_group->tile_data.data_size);
1166 if (ret < 0) {
1167 av_log(avctx, AV_LOG_ERROR,
1168 "HW accel decode slice fail.\n");
1169 goto end;
1170 }
1171 }
1172 break;
1173 case AV1_OBU_TILE_LIST:
1174 case AV1_OBU_TEMPORAL_DELIMITER:
1175 case AV1_OBU_PADDING:
1176 case AV1_OBU_METADATA:
1177 break;
1178 default:
1179 av_log(avctx, AV_LOG_DEBUG,
1180 "Unknown obu type: %d (%"SIZE_SPECIFIER" bits).\n",
1181 unit->type, unit->data_size);
1182 }
1183
1184 if (raw_tile_group && (s->tile_num == raw_tile_group->tg_end + 1)) {
1185 if (avctx->hwaccel && s->cur_frame.f->buf[0]) {
1186 ret = avctx->hwaccel->end_frame(avctx);
1187 if (ret < 0) {
1188 av_log(avctx, AV_LOG_ERROR, "HW accel end frame fail.\n");
1189 goto end;
1190 }
1191 }
1192
1193 ret = update_reference_list(avctx);
1194 if (ret < 0) {
1195 av_log(avctx, AV_LOG_ERROR, "Failed to update reference list.\n");
1196 goto end;
1197 }
1198
1199 if (s->raw_frame_header->show_frame && s->cur_frame.f->buf[0]) {
1200 ret = set_output_frame(avctx, frame, pkt, got_frame);
1201 if (ret < 0) {
1202 av_log(avctx, AV_LOG_ERROR, "Set output frame error\n");
1203 goto end;
1204 }
1205 }
1206 raw_tile_group = NULL;
1207 s->raw_frame_header = NULL;
1208 }
1209 }
1210
1211 end:
1212 ff_cbs_fragment_reset(&s->current_obu);
1213 if (ret < 0)
1214 s->raw_frame_header = NULL;
1215 return ret;
1216 }
1217
av1_decode_flush(AVCodecContext *avctx)1218 static void av1_decode_flush(AVCodecContext *avctx)
1219 {
1220 AV1DecContext *s = avctx->priv_data;
1221
1222 for (int i = 0; i < FF_ARRAY_ELEMS(s->ref); i++)
1223 av1_frame_unref(avctx, &s->ref[i]);
1224
1225 av1_frame_unref(avctx, &s->cur_frame);
1226 s->operating_point_idc = 0;
1227 s->raw_frame_header = NULL;
1228 s->raw_seq = NULL;
1229
1230 ff_cbs_flush(s->cbc);
1231 }
1232
1233 #define OFFSET(x) offsetof(AV1DecContext, x)
1234 #define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
1235 static const AVOption av1_options[] = {
1236 { "operating_point", "Select an operating point of the scalable bitstream",
1237 OFFSET(operating_point), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, AV1_MAX_OPERATING_POINTS - 1, VD },
1238 { NULL }
1239 };
1240
1241 static const AVClass av1_class = {
1242 .class_name = "AV1 decoder",
1243 .item_name = av_default_item_name,
1244 .option = av1_options,
1245 .version = LIBAVUTIL_VERSION_INT,
1246 };
1247
1248 const FFCodec ff_av1_decoder = {
1249 .p.name = "av1",
1250 .p.long_name = NULL_IF_CONFIG_SMALL("Alliance for Open Media AV1"),
1251 .p.type = AVMEDIA_TYPE_VIDEO,
1252 .p.id = AV_CODEC_ID_AV1,
1253 .priv_data_size = sizeof(AV1DecContext),
1254 .init = av1_decode_init,
1255 .close = av1_decode_free,
1256 FF_CODEC_DECODE_CB(av1_decode_frame),
1257 .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_AVOID_PROBING,
1258 .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE |
1259 FF_CODEC_CAP_INIT_CLEANUP |
1260 FF_CODEC_CAP_SETS_PKT_DTS,
1261 .flush = av1_decode_flush,
1262 .p.profiles = NULL_IF_CONFIG_SMALL(ff_av1_profiles),
1263 .p.priv_class = &av1_class,
1264 .bsfs = "av1_frame_split",
1265 .hw_configs = (const AVCodecHWConfigInternal *const []) {
1266 #if CONFIG_AV1_DXVA2_HWACCEL
1267 HWACCEL_DXVA2(av1),
1268 #endif
1269 #if CONFIG_AV1_D3D11VA_HWACCEL
1270 HWACCEL_D3D11VA(av1),
1271 #endif
1272 #if CONFIG_AV1_D3D11VA2_HWACCEL
1273 HWACCEL_D3D11VA2(av1),
1274 #endif
1275 #if CONFIG_AV1_NVDEC_HWACCEL
1276 HWACCEL_NVDEC(av1),
1277 #endif
1278 #if CONFIG_AV1_VAAPI_HWACCEL
1279 HWACCEL_VAAPI(av1),
1280 #endif
1281 #if CONFIG_AV1_VDPAU_HWACCEL
1282 HWACCEL_VDPAU(av1),
1283 #endif
1284
1285 NULL
1286 },
1287 };
1288