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avcodec: add AV1 hardware accelerated decoder

This AV1 decoder is currently only used for hardware accelerated decoding. It can be extended into a native decoder in the future, so set its name to "av1" and temporarily give it the lowest priority in the codec list.

Fei Wang committed 6 years ago

Commit 47be5a51 parent bab3c3210 files · +938 −6Browse files

Unified · Split

10 files
  1. Changelog +1 −0
  2. configure +1 −0
  3. libavcodec/Makefile +1 −0
  4. libavcodec/allcodecs.c +2 −0
  5. libavcodec/av1dec.c +852 −0
  6. libavcodec/av1dec.h +75 −0
  7. libavcodec/version.h +1 −1
  8. tests/ref/fate/av1-annexb-demux +1 −1
  9. tests/ref/lavf-fate/av1.mkv +2 −2
  10. tests/ref/lavf-fate/av1.mp4 +2 −2
Changelog+1−0
@@ -22,6 +22,7 @@ version <next>: · 21 unmodified lines
22- MODS demuxer22- MODS demuxer
23- PhotoCD decoder23- PhotoCD decoder
24- MCA demuxer24- MCA demuxer
25- AV1 decoder (Hardware acceleration used only)
25 26
26 27
27version 4.3:28version 4.3:
configure+1−0
@@ -2685,6 +2685,7 @@ atrac3al_decoder_select="mdct" · 2684 unmodified lines
2685atrac3p_decoder_select="mdct sinewin"2685atrac3p_decoder_select="mdct sinewin"
2686atrac3pal_decoder_select="mdct sinewin"2686atrac3pal_decoder_select="mdct sinewin"
2687atrac9_decoder_select="mdct"2687atrac9_decoder_select="mdct"
2688av1_decoder_select="cbs_av1"
2688avrn_decoder_select="exif jpegtables"2689avrn_decoder_select="exif jpegtables"
2689bink_decoder_select="blockdsp hpeldsp"2690bink_decoder_select="blockdsp hpeldsp"
2690binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"2691binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
libavcodec/Makefile+1−0
@@ -228,6 +228,7 @@ OBJS-$(CONFIG_ATRAC3PAL_DECODER) += atrac3plusdec.o atrac3plus.o \ · 227 unmodified lines
228OBJS-$(CONFIG_ATRAC9_DECODER) += atrac9dec.o228OBJS-$(CONFIG_ATRAC9_DECODER) += atrac9dec.o
229OBJS-$(CONFIG_AURA_DECODER) += cyuv.o229OBJS-$(CONFIG_AURA_DECODER) += cyuv.o
230OBJS-$(CONFIG_AURA2_DECODER) += aura.o230OBJS-$(CONFIG_AURA2_DECODER) += aura.o
231OBJS-$(CONFIG_AV1_DECODER) += av1dec.o
231OBJS-$(CONFIG_AVRN_DECODER) += avrndec.o mjpegdec.o232OBJS-$(CONFIG_AVRN_DECODER) += avrndec.o mjpegdec.o
232OBJS-$(CONFIG_AVRP_DECODER) += r210dec.o233OBJS-$(CONFIG_AVRP_DECODER) += r210dec.o
233OBJS-$(CONFIG_AVRP_ENCODER) += r210enc.o234OBJS-$(CONFIG_AVRP_ENCODER) += r210enc.o
libavcodec/allcodecs.c+2−0
@@ -768,6 +768,8 @@ extern AVCodec ff_aac_mf_encoder; · 767 unmodified lines
768extern AVCodec ff_ac3_mf_encoder;768extern AVCodec ff_ac3_mf_encoder;
769extern AVCodec ff_h263_v4l2m2m_encoder;769extern AVCodec ff_h263_v4l2m2m_encoder;
770extern AVCodec ff_libaom_av1_decoder;770extern AVCodec ff_libaom_av1_decoder;
771/* hwaccel hooks only, so prefer external decoders */
772extern AVCodec ff_av1_decoder;
771extern AVCodec ff_libopenh264_encoder;773extern AVCodec ff_libopenh264_encoder;
772extern AVCodec ff_libopenh264_decoder;774extern AVCodec ff_libopenh264_decoder;
773extern AVCodec ff_h264_amf_encoder;775extern AVCodec ff_h264_amf_encoder;
libavcodec/av1dec.c+852−0
@@ -0,0 +1,852 @@
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 "libavutil/pixdesc.h"
22#include "avcodec.h"
23#include "av1dec.h"
24#include "get_bits.h"
25#include "hwconfig.h"
26#include "internal.h"
27#include "profiles.h"
28
29static void setup_past_independence(AV1Frame *f)
30{
31 f->loop_filter_delta_enabled = 1;
32
33 f->loop_filter_ref_deltas[AV1_REF_FRAME_INTRA] = 1;
34 f->loop_filter_ref_deltas[AV1_REF_FRAME_LAST] = 0;
35 f->loop_filter_ref_deltas[AV1_REF_FRAME_LAST2] = 0;
36 f->loop_filter_ref_deltas[AV1_REF_FRAME_LAST3] = 0;
37 f->loop_filter_ref_deltas[AV1_REF_FRAME_GOLDEN] = -1;
38 f->loop_filter_ref_deltas[AV1_REF_FRAME_BWDREF] = 0;
39 f->loop_filter_ref_deltas[AV1_REF_FRAME_ALTREF2] = -1;
40 f->loop_filter_ref_deltas[AV1_REF_FRAME_ALTREF] = -1;
41
42 f->loop_filter_mode_deltas[0] = 0;
43 f->loop_filter_mode_deltas[1] = 0;
44}
45
46static void load_previous_and_update(AV1DecContext *s)
47{
48 uint8_t primary_frame, prev_frame;
49
50 primary_frame = s->raw_frame_header->primary_ref_frame;
51 prev_frame = s->raw_frame_header->ref_frame_idx[primary_frame];
52 memcpy(s->cur_frame.loop_filter_ref_deltas,
53 s->ref[prev_frame].loop_filter_ref_deltas,
54 AV1_NUM_REF_FRAMES * sizeof(int8_t));
55 memcpy(s->cur_frame.loop_filter_mode_deltas,
56 s->ref[prev_frame].loop_filter_mode_deltas,
57 2 * sizeof(int8_t));
58
59 if (s->raw_frame_header->loop_filter_delta_update) {
60 for (int i = 0; i < AV1_NUM_REF_FRAMES; i++) {
61 if (s->raw_frame_header->update_ref_delta[i])
62 s->cur_frame.loop_filter_ref_deltas[i] =
63 s->raw_frame_header->loop_filter_ref_deltas[i];
64 }
65
66 for (int i = 0; i < 2; i++) {
67 if (s->raw_frame_header->update_mode_delta[i])
68 s->cur_frame.loop_filter_mode_deltas[i] =
69 s->raw_frame_header->loop_filter_mode_deltas[i];
70 }
71 }
72
73 s->cur_frame.loop_filter_delta_enabled =
74 s->raw_frame_header->loop_filter_delta_enabled;
75}
76
77static uint32_t inverse_recenter(int r, uint32_t v)
78{
79 if (v > 2 * r)
80 return v;
81 else if (v & 1)
82 return r - ((v + 1) >> 1);
83 else
84 return r + (v >> 1);
85}
86
87static uint32_t decode_unsigned_subexp_with_ref(uint32_t sub_exp,
88 int mx, int r)
89{
90 if ((r << 1) <= mx) {
91 return inverse_recenter(r, sub_exp);
92 } else {
93 return mx - 1 - inverse_recenter(mx - 1 - r, sub_exp);
94 }
95}
96
97static int32_t decode_signed_subexp_with_ref(uint32_t sub_exp, int low,
98 int high, int r)
99{
100 int32_t x = decode_unsigned_subexp_with_ref(sub_exp, high - low, r - low);
101 return x + low;
102}
103
104static void read_global_param(AV1DecContext *s, int type, int ref, int idx)
105{
106 uint8_t primary_frame, prev_frame;
107 uint32_t abs_bits, prec_bits, round, prec_diff, sub, mx;
108 int32_t r;
109
110 primary_frame = s->raw_frame_header->primary_ref_frame;
111 prev_frame = s->raw_frame_header->ref_frame_idx[primary_frame];
112 abs_bits = AV1_GM_ABS_ALPHA_BITS;
113 prec_bits = AV1_GM_ALPHA_PREC_BITS;
114
115 if (idx < 2) {
116 if (type == AV1_WARP_MODEL_TRANSLATION) {
117 abs_bits = AV1_GM_ABS_TRANS_ONLY_BITS -
118 !s->raw_frame_header->allow_high_precision_mv;
119 prec_bits = AV1_GM_TRANS_ONLY_PREC_BITS -
120 !s->raw_frame_header->allow_high_precision_mv;
121 } else {
122 abs_bits = AV1_GM_ABS_TRANS_BITS;
123 prec_bits = AV1_GM_TRANS_PREC_BITS;
124 }
125 }
126 round = (idx % 3) == 2 ? (1 << AV1_WARPEDMODEL_PREC_BITS) : 0;
127 prec_diff = AV1_WARPEDMODEL_PREC_BITS - prec_bits;
128 sub = (idx % 3) == 2 ? (1 << prec_bits) : 0;
129 mx = 1 << abs_bits;
130 r = (s->ref[prev_frame].gm_params[ref][idx] >> prec_diff) - sub;
131
132 s->cur_frame.gm_params[ref][idx] =
133 (decode_signed_subexp_with_ref(s->raw_frame_header->gm_params[ref][idx],
134 -mx, mx + 1, r) << prec_diff) + round;
135}
136
137/**
138* update gm type/params, since cbs already implemented part of this funcation,
139* so we don't need to full implement spec.
140*/
141static void global_motion_params(AV1DecContext *s)
142{
143 const AV1RawFrameHeader *header = s->raw_frame_header;
144 int type, ref;
145
146 for (ref = AV1_REF_FRAME_LAST; ref <= AV1_REF_FRAME_ALTREF; ref++) {
147 s->cur_frame.gm_type[ref] = AV1_WARP_MODEL_IDENTITY;
148 for (int i = 0; i < 6; i++)
149 s->cur_frame.gm_params[ref][i] = (i % 3 == 2) ?
150 1 << AV1_WARPEDMODEL_PREC_BITS : 0;
151 }
152 if (header->frame_type == AV1_FRAME_KEY ||
153 header->frame_type == AV1_FRAME_INTRA_ONLY)
154 return;
155
156 for (ref = AV1_REF_FRAME_LAST; ref <= AV1_REF_FRAME_ALTREF; ref++) {
157 if (header->is_global[ref]) {
158 if (header->is_rot_zoom[ref]) {
159 type = AV1_WARP_MODEL_ROTZOOM;
160 } else {
161 type = header->is_translation[ref] ? AV1_WARP_MODEL_TRANSLATION
162 : AV1_WARP_MODEL_AFFINE;
163 }
164 } else {
165 type = AV1_WARP_MODEL_IDENTITY;
166 }
167 s->cur_frame.gm_type[ref] = type;
168
169 if (type >= AV1_WARP_MODEL_ROTZOOM) {
170 read_global_param(s, type, ref, 2);
171 read_global_param(s, type, ref, 3);
172 if (type == AV1_WARP_MODEL_AFFINE) {
173 read_global_param(s, type, ref, 4);
174 read_global_param(s, type, ref, 5);
175 } else {
176 s->cur_frame.gm_params[ref][4] = -s->cur_frame.gm_params[ref][3];
177 s->cur_frame.gm_params[ref][5] = s->cur_frame.gm_params[ref][2];
178 }
179 }
180 if (type >= AV1_WARP_MODEL_TRANSLATION) {
181 read_global_param(s, type, ref, 0);
182 read_global_param(s, type, ref, 1);
183 }
184 }
185}
186
187static int init_tile_data(AV1DecContext *s)
188
189{
190 int cur_tile_num =
191 s->raw_frame_header->tile_cols * s->raw_frame_header->tile_rows;
192 if (s->tile_num < cur_tile_num) {
193 int ret = av_reallocp_array(&s->tile_group_info, cur_tile_num,
194 sizeof(TileGroupInfo));
195 if (ret < 0) {
196 s->tile_num = 0;
197 return ret;
198 }
199 }
200 s->tile_num = cur_tile_num;
201
202 return 0;
203}
204
205static int get_tiles_info(AVCodecContext *avctx, const AV1RawTileGroup *tile_group)
206{
207 AV1DecContext *s = avctx->priv_data;
208 GetBitContext gb;
209 uint16_t tile_num, tile_row, tile_col;
210 uint32_t size = 0, size_bytes = 0, offset = 0;
211 int ret;
212
213 if ((ret = init_get_bits8(&gb,
214 tile_group->tile_data.data,
215 tile_group->tile_data.data_size)) < 0) {
216 av_log(avctx, AV_LOG_ERROR, "Failed to initialize bitstream reader.\n");
217 return ret;
218 }
219
220 s->tg_start = tile_group->tg_start;
221 s->tg_end = tile_group->tg_end;
222
223 for (tile_num = tile_group->tg_start; tile_num <= tile_group->tg_end; tile_num++) {
224 tile_row = tile_num / s->raw_frame_header->tile_cols;
225 tile_col = tile_num % s->raw_frame_header->tile_cols;
226
227 if (tile_num == tile_group->tg_end) {
228 s->tile_group_info[tile_num].tile_size = get_bits_left(&gb) / 8;
229 s->tile_group_info[tile_num].tile_offset = offset;
230 s->tile_group_info[tile_num].tile_row = tile_row;
231 s->tile_group_info[tile_num].tile_column = tile_col;
232 return 0;
233 }
234 size_bytes = s->raw_frame_header->tile_size_bytes_minus1 + 1;
235 size = get_bits_le(&gb, size_bytes * 8) + 1;
236 skip_bits(&gb, size * 8);
237
238 offset += size_bytes;
239
240 s->tile_group_info[tile_num].tile_size = size;
241 s->tile_group_info[tile_num].tile_offset = offset;
242 s->tile_group_info[tile_num].tile_row = tile_row;
243 s->tile_group_info[tile_num].tile_column = tile_col;
244
245 offset += size;
246 }
247
248 return 0;
249
250}
251
252static int get_pixel_format(AVCodecContext *avctx)
253{
254 AV1DecContext *s = avctx->priv_data;
255 const AV1RawSequenceHeader *seq = s->raw_seq;
256 uint8_t bit_depth;
257 int ret;
258 enum AVPixelFormat pix_fmt = AV_PIX_FMT_NONE;
259#define HWACCEL_MAX (0)
260 enum AVPixelFormat pix_fmts[HWACCEL_MAX + 1], *fmtp = pix_fmts;
261
262 /**
263 * check if the HW accel is inited correctly. If not, return un-implemented.
264 * Since now the av1 decoder doesn't support native decode, if it will be
265 * implemented in the future, need remove this check.
266 */
267 if (!avctx->hwaccel) {
268 av_log(avctx, AV_LOG_ERROR, "Your platform doesn't suppport"
269 " hardware accelerated AV1 decoding.\n");
270 return AVERROR(ENOSYS);
271 }
272
273 if (seq->seq_profile == 2 && seq->color_config.high_bitdepth)
274 bit_depth = seq->color_config.twelve_bit ? 12 : 10;
275 else if (seq->seq_profile <= 2)
276 bit_depth = seq->color_config.high_bitdepth ? 10 : 8;
277 else {
278 av_log(avctx, AV_LOG_ERROR,
279 "Unknown AV1 profile %d.\n", seq->seq_profile);
280 return -1;
281 }
282
283 if (!seq->color_config.mono_chrome) {
284 // 4:4:4 x:0 y:0, 4:2:2 x:1 y:0, 4:2:0 x:1 y:1
285 if (seq->color_config.subsampling_x == 0 &&
286 seq->color_config.subsampling_y == 0) {
287 if (bit_depth == 8)
288 pix_fmt = AV_PIX_FMT_YUV444P;
289 else if (bit_depth == 10)
290 pix_fmt = AV_PIX_FMT_YUV444P10;
291 else if (bit_depth == 12)
292 pix_fmt = AV_PIX_FMT_YUV444P12;
293 else
294 av_log(avctx, AV_LOG_WARNING, "Unknown AV1 pixel format.\n");
295 } else if (seq->color_config.subsampling_x == 1 &&
296 seq->color_config.subsampling_y == 0) {
297 if (bit_depth == 8)
298 pix_fmt = AV_PIX_FMT_YUV422P;
299 else if (bit_depth == 10)
300 pix_fmt = AV_PIX_FMT_YUV422P10;
301 else if (bit_depth == 12)
302 pix_fmt = AV_PIX_FMT_YUV422P12;
303 else
304 av_log(avctx, AV_LOG_WARNING, "Unknown AV1 pixel format.\n");
305 } else if (seq->color_config.subsampling_x == 1 &&
306 seq->color_config.subsampling_y == 1) {
307 if (bit_depth == 8)
308 pix_fmt = AV_PIX_FMT_YUV420P;
309 else if (bit_depth == 10)
310 pix_fmt = AV_PIX_FMT_YUV420P10;
311 else if (bit_depth == 12)
312 pix_fmt = AV_PIX_FMT_YUV420P12;
313 else
314 av_log(avctx, AV_LOG_WARNING, "Unknown AV1 pixel format.\n");
315 }
316 } else {
317 if (seq->color_config.subsampling_x == 1 &&
318 seq->color_config.subsampling_y == 1)
319 pix_fmt = AV_PIX_FMT_YUV440P;
320 else
321 av_log(avctx, AV_LOG_WARNING, "Unknown AV1 pixel format.\n");
322 }
323
324 av_log(avctx, AV_LOG_DEBUG, "AV1 decode get format: %s.\n",
325 av_get_pix_fmt_name(pix_fmt));
326
327 if (pix_fmt == AV_PIX_FMT_NONE)
328 return -1;
329 s->pix_fmt = pix_fmt;
330
331 *fmtp = AV_PIX_FMT_NONE;
332 avctx->sw_pix_fmt = s->pix_fmt;
333 ret = ff_thread_get_format(avctx, pix_fmts);
334 if (ret < 0)
335 return ret;
336
337 avctx->pix_fmt = ret;
338
339 return 0;
340}
341
342static void av1_frame_unref(AVCodecContext *avctx, AV1Frame *f)
343{
344 ff_thread_release_buffer(avctx, &f->tf);
345 av_buffer_unref(&f->hwaccel_priv_buf);
346 f->hwaccel_picture_private = NULL;
347}
348
349static int av1_frame_ref(AVCodecContext *avctx, AV1Frame *dst, const AV1Frame *src)
350{
351 int ret;
352
353 ret = ff_thread_ref_frame(&dst->tf, &src->tf);
354 if (ret < 0)
355 return ret;
356
357 if (src->hwaccel_picture_private) {
358 dst->hwaccel_priv_buf = av_buffer_ref(src->hwaccel_priv_buf);
359 if (!dst->hwaccel_priv_buf)
360 goto fail;
361 dst->hwaccel_picture_private = dst->hwaccel_priv_buf->data;
362 }
363
364 dst->loop_filter_delta_enabled = src->loop_filter_delta_enabled;
365 memcpy(dst->loop_filter_ref_deltas,
366 src->loop_filter_ref_deltas,
367 AV1_NUM_REF_FRAMES * sizeof(int8_t));
368 memcpy(dst->loop_filter_mode_deltas,
369 src->loop_filter_mode_deltas,
370 2 * sizeof(int8_t));
371 memcpy(dst->gm_type,
372 src->gm_type,
373 AV1_NUM_REF_FRAMES * sizeof(uint8_t));
374 memcpy(dst->gm_params,
375 src->gm_params,
376 AV1_NUM_REF_FRAMES * 6 * sizeof(int32_t));
377
378 return 0;
379
380fail:
381 av1_frame_unref(avctx, dst);
382 return AVERROR(ENOMEM);
383}
384
385static av_cold int av1_decode_free(AVCodecContext *avctx)
386{
387 AV1DecContext *s = avctx->priv_data;
388
389 for (int i = 0; i < FF_ARRAY_ELEMS(s->ref); i++) {
390 if (s->ref[i].tf.f->buf[0])
391 av1_frame_unref(avctx, &s->ref[i]);
392 av_frame_free(&s->ref[i].tf.f);
393 }
394 if (s->cur_frame.tf.f->buf[0])
395 av1_frame_unref(avctx, &s->cur_frame);
396 av_frame_free(&s->cur_frame.tf.f);
397
398 av_buffer_unref(&s->seq_ref);
399 av_buffer_unref(&s->header_ref);
400 av_freep(&s->tile_group_info);
401
402 ff_cbs_fragment_free(&s->current_obu);
403 ff_cbs_close(&s->cbc);
404
405 return 0;
406}
407
408static int set_context_with_sequence(AVCodecContext *avctx,
409 const AV1RawSequenceHeader *seq)
410{
411 avctx->profile = seq->seq_profile;
412 avctx->level = seq->seq_level_idx[0];
413
414 avctx->color_range =
415 seq->color_config.color_range ? AVCOL_RANGE_JPEG : AVCOL_RANGE_MPEG;
416 avctx->color_primaries = seq->color_config.color_primaries;
417 avctx->colorspace = seq->color_config.color_primaries;
418 avctx->color_trc = seq->color_config.transfer_characteristics;
419
420 if (seq->timing_info.num_units_in_display_tick &&
421 seq->timing_info.time_scale) {
422 av_reduce(&avctx->framerate.den, &avctx->framerate.num,
423 seq->timing_info.num_units_in_display_tick,
424 seq->timing_info.time_scale,
425 INT_MAX);
426 if (seq->timing_info.equal_picture_interval)
427 avctx->ticks_per_frame = seq->timing_info.num_ticks_per_picture_minus_1 + 1;
428 }
429
430 return 0;
431}
432
433static int update_context_with_frame_header(AVCodecContext *avctx,
434 const AV1RawFrameHeader *header)
435{
436 AVRational aspect_ratio;
437 int width = header->frame_width_minus_1 + 1;
438 int height = header->frame_height_minus_1 + 1;
439 int r_width = header->render_width_minus_1 + 1;
440 int r_height = header->render_height_minus_1 + 1;
441 int ret;
442
443 if (avctx->width != width || avctx->height != height) {
444 ret = ff_set_dimensions(avctx, width, height);
445 if (ret < 0)
446 return ret;
447 }
448
449 av_reduce(&aspect_ratio.num, &aspect_ratio.den,
450 (int64_t)height * r_width,
451 (int64_t)width * r_height,
452 INT_MAX);
453
454 if (avctx->sample_aspect_ratio.num != aspect_ratio.num ||
455 avctx->sample_aspect_ratio.den != aspect_ratio.den) {
456 ret = ff_set_sar(avctx, aspect_ratio);
457 if (ret < 0)
458 return ret;
459 }
460
461 return 0;
462}
463
464static av_cold int av1_decode_init(AVCodecContext *avctx)
465{
466 AV1DecContext *s = avctx->priv_data;
467 AV1RawSequenceHeader *seq;
468 int ret;
469
470 s->avctx = avctx;
471 s->pix_fmt = AV_PIX_FMT_NONE;
472
473 for (int i = 0; i < FF_ARRAY_ELEMS(s->ref); i++) {
474 s->ref[i].tf.f = av_frame_alloc();
475 if (!s->ref[i].tf.f) {
476 av1_decode_free(avctx);
477 av_log(avctx, AV_LOG_ERROR,
478 "Failed to allocate reference frame buffer %d.\n", i);
479 return AVERROR(ENOMEM);
480 }
481 }
482
483 s->cur_frame.tf.f = av_frame_alloc();
484 if (!s->cur_frame.tf.f) {
485 av1_decode_free(avctx);
486 av_log(avctx, AV_LOG_ERROR,
487 "Failed to allocate current frame buffer.\n");
488 return AVERROR(ENOMEM);
489 }
490
491 ret = ff_cbs_init(&s->cbc, AV_CODEC_ID_AV1, avctx);
492 if (ret < 0)
493 return ret;
494
495 if (avctx->extradata && avctx->extradata_size) {
496 ret = ff_cbs_read(s->cbc, &s->current_obu, avctx->extradata,
497 avctx->extradata_size);
498 if (ret < 0) {
499 av_log(avctx, AV_LOG_WARNING, "Failed to read extradata.\n");
500 goto end;
501 }
502
503 seq = ((CodedBitstreamAV1Context *)(s->cbc->priv_data))->sequence_header;
504 if (!seq) {
505 av_log(avctx, AV_LOG_WARNING, "No sequence header available.\n");
506 goto end;
507 }
508
509 ret = set_context_with_sequence(avctx, seq);
510 if (ret < 0) {
511 av_log(avctx, AV_LOG_WARNING, "Failed to set decoder context.\n");
512 goto end;
513 }
514
515 end:
516 ff_cbs_fragment_reset(&s->current_obu);
517 }
518
519 return ret;
520}
521
522static int av1_frame_alloc(AVCodecContext *avctx, AV1Frame *f)
523{
524 AV1DecContext *s = avctx->priv_data;
525 AV1RawFrameHeader *header= s->raw_frame_header;
526 AVFrame *frame;
527 int ret;
528
529 ret = update_context_with_frame_header(avctx, header);
530 if (ret < 0) {
531 av_log(avctx, AV_LOG_ERROR, "Failed to update context with frame header\n");
532 return ret;
533 }
534
535 if ((ret = ff_thread_get_buffer(avctx, &f->tf, AV_GET_BUFFER_FLAG_REF)) < 0)
536 return ret;
537
538 frame = f->tf.f;
539 frame->key_frame = header->frame_type == AV1_FRAME_KEY;
540
541 switch (header->frame_type) {
542 case AV1_FRAME_KEY:
543 case AV1_FRAME_INTRA_ONLY:
544 frame->pict_type = AV_PICTURE_TYPE_I;
545 break;
546 case AV1_FRAME_INTER:
547 frame->pict_type = AV_PICTURE_TYPE_P;
548 break;
549 case AV1_FRAME_SWITCH:
550 frame->pict_type = AV_PICTURE_TYPE_SP;
551 break;
552 }
553
554 if (avctx->hwaccel) {
555 const AVHWAccel *hwaccel = avctx->hwaccel;
556 if (hwaccel->frame_priv_data_size) {
557 f->hwaccel_priv_buf =
558 av_buffer_allocz(hwaccel->frame_priv_data_size);
559 if (!f->hwaccel_priv_buf)
560 goto fail;
561 f->hwaccel_picture_private = f->hwaccel_priv_buf->data;
562 }
563 }
564 return 0;
565
566fail:
567 av1_frame_unref(avctx, f);
568 return AVERROR(ENOMEM);
569}
570
571static int set_output_frame(AVCodecContext *avctx, AVFrame *frame,
572 const AVPacket *pkt, int *got_frame)
573{
574 AV1DecContext *s = avctx->priv_data;
575 const AV1RawFrameHeader *header = s->raw_frame_header;
576 const AVFrame *srcframe;
577 int ret;
578
579 if (header->show_existing_frame)
580 srcframe = s->ref[header->frame_to_show_map_idx].tf.f;
581 else
582 srcframe = s->cur_frame.tf.f;
583
584 ret = av_frame_ref(frame, srcframe);
585 if (ret < 0)
586 return ret;
587
588 frame->pts = pkt->pts;
589 frame->pkt_dts = pkt->dts;
590 frame->pkt_size = pkt->size;
591
592 *got_frame = 1;
593
594 return 0;
595}
596
597static int update_reference_list(AVCodecContext *avctx)
598{
599 AV1DecContext *s = avctx->priv_data;
600 const AV1RawFrameHeader *header = s->raw_frame_header;
601 int ret;
602
603 for (int i = 0; i < AV1_NUM_REF_FRAMES; i++) {
604 if (header->refresh_frame_flags & (1 << i)) {
605 if (s->ref[i].tf.f->buf[0])
606 av1_frame_unref(avctx, &s->ref[i]);
607 if ((ret = av1_frame_ref(avctx, &s->ref[i], &s->cur_frame)) < 0) {
608 av_log(avctx, AV_LOG_ERROR,
609 "Failed to update frame %d in reference list\n", i);
610 return ret;
611 }
612 }
613 }
614 return 0;
615}
616
617static int get_current_frame(AVCodecContext *avctx)
618{
619 AV1DecContext *s = avctx->priv_data;
620 int ret;
621
622 if (s->cur_frame.tf.f->buf[0])
623 av1_frame_unref(avctx, &s->cur_frame);
624
625 ret = av1_frame_alloc(avctx, &s->cur_frame);
626 if (ret < 0) {
627 av_log(avctx, AV_LOG_ERROR,
628 "Failed to allocate space for current frame.\n");
629 return ret;
630 }
631
632 ret = init_tile_data(s);
633 if (ret < 0) {
634 av_log(avctx, AV_LOG_ERROR, "Failed to init tile data.\n");
635 return ret;
636 }
637
638 if (s->raw_frame_header->primary_ref_frame == AV1_PRIMARY_REF_NONE)
639 setup_past_independence(&s->cur_frame);
640 else
641 load_previous_and_update(s);
642
643 global_motion_params(s);
644
645 return ret;
646}
647
648static int av1_decode_frame(AVCodecContext *avctx, void *frame,
649 int *got_frame, AVPacket *pkt)
650{
651 AV1DecContext *s = avctx->priv_data;
652 AV1RawTileGroup *raw_tile_group = NULL;
653 int ret;
654
655 ret = ff_cbs_read_packet(s->cbc, &s->current_obu, pkt);
656 if (ret < 0) {
657 av_log(avctx, AV_LOG_ERROR, "Failed to read packet.\n");
658 goto end;
659 }
660 av_log(avctx, AV_LOG_DEBUG, "Total obu for this frame:%d.\n",
661 s->current_obu.nb_units);
662
663 for (int i = 0; i < s->current_obu.nb_units; i++) {
664 CodedBitstreamUnit *unit = &s->current_obu.units[i];
665 AV1RawOBU *obu = unit->content;
666 av_log(avctx, AV_LOG_DEBUG, "Obu idx:%d, obu type:%d.\n", i, unit->type);
667
668 switch (unit->type) {
669 case AV1_OBU_SEQUENCE_HEADER:
670 av_buffer_unref(&s->seq_ref);
671 s->seq_ref = av_buffer_ref(unit->content_ref);
672 if (!s->seq_ref) {
673 ret = AVERROR(ENOMEM);
674 goto end;
675 }
676
677 s->raw_seq = &obu->obu.sequence_header;
678
679 ret = set_context_with_sequence(avctx, s->raw_seq);
680 if (ret < 0) {
681 av_log(avctx, AV_LOG_ERROR, "Failed to set context.\n");
682 goto end;
683 }
684
685 if (s->pix_fmt == AV_PIX_FMT_NONE) {
686 ret = get_pixel_format(avctx);
687 if (ret < 0) {
688 av_log(avctx, AV_LOG_ERROR,
689 "Failed to get pixel format.\n");
690 goto end;
691 }
692 }
693
694 if (avctx->hwaccel && avctx->hwaccel->decode_params) {
695 ret = avctx->hwaccel->decode_params(avctx, unit->type, unit->data,
696 unit->data_size);
697 if (ret < 0) {
698 av_log(avctx, AV_LOG_ERROR, "HW accel decode params fail.\n");
699 goto end;
700 }
701 }
702 break;
703 case AV1_OBU_REDUNDANT_FRAME_HEADER:
704 if (s->raw_frame_header)
705 break;
706 // fall-through
707 case AV1_OBU_FRAME:
708 case AV1_OBU_FRAME_HEADER:
709 if (!s->seq_ref) {
710 av_log(avctx, AV_LOG_ERROR, "Missing Sequence Header.\n");
711 ret = AVERROR_INVALIDDATA;
712 goto end;
713 }
714
715 av_buffer_unref(&s->header_ref);
716 s->header_ref = av_buffer_ref(unit->content_ref);
717 if (!s->header_ref) {
718 ret = AVERROR(ENOMEM);
719 goto end;
720 }
721
722 if (unit->type == AV1_OBU_FRAME)
723 s->raw_frame_header = &obu->obu.frame.header;
724 else
725 s->raw_frame_header = &obu->obu.frame_header;
726
727 if (s->raw_frame_header->show_existing_frame) {
728 ret = set_output_frame(avctx, frame, pkt, got_frame);
729 if (ret < 0)
730 av_log(avctx, AV_LOG_ERROR, "Set output frame error.\n");
731
732 s->raw_frame_header = NULL;
733
734 goto end;
735 }
736
737 ret = get_current_frame(avctx);
738 if (ret < 0) {
739 av_log(avctx, AV_LOG_ERROR, "Get current frame error\n");
740 goto end;
741 }
742
743 if (avctx->hwaccel) {
744 ret = avctx->hwaccel->start_frame(avctx, unit->data,
745 unit->data_size);
746 if (ret < 0) {
747 av_log(avctx, AV_LOG_ERROR, "HW accel start frame fail.\n");
748 goto end;
749 }
750 }
751 if (unit->type != AV1_OBU_FRAME)
752 break;
753 // fall-through
754 case AV1_OBU_TILE_GROUP:
755 if (!s->raw_frame_header) {
756 av_log(avctx, AV_LOG_ERROR, "Missing Frame Header.\n");
757 ret = AVERROR_INVALIDDATA;
758 goto end;
759 }
760
761 if (unit->type == AV1_OBU_FRAME)
762 raw_tile_group = &obu->obu.frame.tile_group;
763 else
764 raw_tile_group = &obu->obu.tile_group;
765
766 get_tiles_info(avctx, raw_tile_group);
767
768 if (avctx->hwaccel) {
769 ret = avctx->hwaccel->decode_slice(avctx,
770 raw_tile_group->tile_data.data,
771 raw_tile_group->tile_data.data_size);
772 if (ret < 0) {
773 av_log(avctx, AV_LOG_ERROR,
774 "HW accel decode slice fail.\n");
775 goto end;
776 }
777 }
778 break;
779 case AV1_OBU_TILE_LIST:
780 case AV1_OBU_TEMPORAL_DELIMITER:
781 case AV1_OBU_PADDING:
782 case AV1_OBU_METADATA:
783 break;
784 default:
785 av_log(avctx, AV_LOG_DEBUG,
786 "Unknown obu type: %d (%"SIZE_SPECIFIER" bits).\n",
787 unit->type, unit->data_size);
788 }
789
790 if (raw_tile_group && (s->tile_num == raw_tile_group->tg_end + 1)) {
791 if (avctx->hwaccel) {
792 ret = avctx->hwaccel->end_frame(avctx);
793 if (ret < 0) {
794 av_log(avctx, AV_LOG_ERROR, "HW accel end frame fail.\n");
795 goto end;
796 }
797 }
798
799 ret = update_reference_list(avctx);
800 if (ret < 0) {
801 av_log(avctx, AV_LOG_ERROR, "Failed to update reference list.\n");
802 goto end;
803 }
804
805 if (s->raw_frame_header->show_frame) {
806 ret = set_output_frame(avctx, frame, pkt, got_frame);
807 if (ret < 0) {
808 av_log(avctx, AV_LOG_ERROR, "Set output frame error\n");
809 goto end;
810 }
811 }
812 raw_tile_group = NULL;
813 s->raw_frame_header = NULL;
814 }
815 }
816
817end:
818 ff_cbs_fragment_reset(&s->current_obu);
819 return ret;
820}
821
822static void av1_decode_flush(AVCodecContext *avctx)
823{
824 AV1DecContext *s = avctx->priv_data;
825
826 for (int i = 0; i < FF_ARRAY_ELEMS(s->ref); i++)
827 av1_frame_unref(avctx, &s->ref[i]);
828
829 av1_frame_unref(avctx, &s->cur_frame);
830 s->raw_frame_header = NULL;
831 s->raw_seq = NULL;
832}
833
834AVCodec ff_av1_decoder = {
835 .name = "av1",
836 .long_name = NULL_IF_CONFIG_SMALL("Alliance for Open Media AV1"),
837 .type = AVMEDIA_TYPE_VIDEO,
838 .id = AV_CODEC_ID_AV1,
839 .priv_data_size = sizeof(AV1DecContext),
840 .init = av1_decode_init,
841 .close = av1_decode_free,
842 .decode = av1_decode_frame,
843 .capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_AVOID_PROBING,
844 .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE |
845 FF_CODEC_CAP_INIT_CLEANUP |
846 FF_CODEC_CAP_SETS_PKT_DTS,
847 .flush = av1_decode_flush,
848 .profiles = NULL_IF_CONFIG_SMALL(ff_av1_profiles),
849 .hw_configs = (const AVCodecHWConfigInternal * []) {
850 NULL
851 },
852};
libavcodec/av1dec.h+75−0
@@ -0,0 +1,75 @@
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#ifndef AVCODEC_AV1DEC_H
22#define AVCODEC_AV1DEC_H
23
24#include <stdint.h>
25
26#include "libavutil/buffer.h"
27#include "libavutil/pixfmt.h"
28#include "avcodec.h"
29#include "cbs.h"
30#include "cbs_av1.h"
31#include "thread.h"
32
33typedef struct AV1Frame {
34 ThreadFrame tf;
35
36 AVBufferRef *hwaccel_priv_buf;
37 void *hwaccel_picture_private;
38
39 uint8_t loop_filter_delta_enabled;
40 int8_t loop_filter_ref_deltas[AV1_NUM_REF_FRAMES];
41 int8_t loop_filter_mode_deltas[2];
42 uint8_t gm_type[AV1_NUM_REF_FRAMES];
43 int32_t gm_params[AV1_NUM_REF_FRAMES][6];
44} AV1Frame;
45
46typedef struct TileGroupInfo {
47 uint32_t tile_offset;
48 uint32_t tile_size;
49 uint16_t tile_row;
50 uint16_t tile_column;
51} TileGroupInfo;
52
53typedef struct AV1DecContext {
54 const AVClass *class;
55 AVCodecContext *avctx;
56
57 enum AVPixelFormat pix_fmt;
58 CodedBitstreamContext *cbc;
59 CodedBitstreamFragment current_obu;
60
61 AVBufferRef *seq_ref;
62 AV1RawSequenceHeader *raw_seq;
63 AVBufferRef *header_ref;
64 AV1RawFrameHeader *raw_frame_header;
65 TileGroupInfo *tile_group_info;
66 uint16_t tile_num;
67 uint16_t tg_start;
68 uint16_t tg_end;
69
70 AV1Frame ref[AV1_NUM_REF_FRAMES];
71 AV1Frame cur_frame;
72
73} AV1DecContext;
74
75#endif /* AVCODEC_AV1DEC_H */
libavcodec/version.h+1−1
@@ -28,7 +28,7 @@ · 27 unmodified lines
28#include "libavutil/version.h"28#include "libavutil/version.h"
29 29
30#define LIBAVCODEC_VERSION_MAJOR 5830#define LIBAVCODEC_VERSION_MAJOR 58
31#define LIBAVCODEC_VERSION_MINOR 10531#define LIBAVCODEC_VERSION_MINOR 106
32#define LIBAVCODEC_VERSION_MICRO 10032#define LIBAVCODEC_VERSION_MICRO 100
33 33
34#define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \34#define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
tests/ref/fate/av1-annexb-demux+1−1
@@ -3,7 +3,7 @@ · 2 unmodified lines
3#media_type 0: video3#media_type 0: video
4#codec_id 0: av14#codec_id 0: av1
5#dimensions 0: 300x3005#dimensions 0: 300x300
6#sar 0: 0/16#sar 0: 1/1
70, 0, 0, 48000, 12691, 0xf0adcc7970, 0, 0, 48000, 12691, 0xf0adcc79
80, 48000, 48000, 48000, 4975, 0x1742a45f, F=0x080, 48000, 48000, 48000, 4975, 0x1742a45f, F=0x0
90, 96000, 96000, 48000, 928, 0x7408be1a, F=0x090, 96000, 96000, 48000, 928, 0x7408be1a, F=0x0
tests/ref/lavf-fate/av1.mkv+2−2
@@ -1,3 +1,3 @@
1bd676bfc89422755920099ec6ebdebe6 *tests/data/lavf-fate/lavf.av1.mkv177138a0e07ebd1c6ff2f69305e2f5c79 *tests/data/lavf-fate/lavf.av1.mkv
255657 tests/data/lavf-fate/lavf.av1.mkv255653 tests/data/lavf-fate/lavf.av1.mkv
3tests/data/lavf-fate/lavf.av1.mkv CRC=0x7c27cc153tests/data/lavf-fate/lavf.av1.mkv CRC=0x7c27cc15
tests/ref/lavf-fate/av1.mp4+2−2
@@ -1,3 +1,3 @@
14eed679a1d3e18edfd95b268167d8060 *tests/data/lavf-fate/lavf.av1.mp411461be24bed65c04aab21659d6e7a3e1 *tests/data/lavf-fate/lavf.av1.mp4
255940 tests/data/lavf-fate/lavf.av1.mp4255956 tests/data/lavf-fate/lavf.av1.mp4
3tests/data/lavf-fate/lavf.av1.mp4 CRC=0x7c27cc153tests/data/lavf-fate/lavf.av1.mp4 CRC=0x7c27cc15

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