4 * This file is part of FFmpeg.
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.
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.
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
21 #include "libavutil/pixdesc.h"
24 #include "bytestream.h"
29 static void setup_past_independence(AV1Frame *f)
31 f->loop_filter_delta_enabled = 1;
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;
42 f->loop_filter_mode_deltas[0] = 0;
43 f->loop_filter_mode_deltas[1] = 0;
46 static void load_previous_and_update(AV1DecContext *s)
48 uint8_t primary_frame, prev_frame;
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,
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];
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];
73 s->cur_frame.loop_filter_delta_enabled =
74 s->raw_frame_header->loop_filter_delta_enabled;
77 static uint32_t inverse_recenter(int r, uint32_t v)
82 return r - ((v + 1) >> 1);
87 static uint32_t decode_unsigned_subexp_with_ref(uint32_t sub_exp,
91 return inverse_recenter(r, sub_exp);
93 return mx - 1 - inverse_recenter(mx - 1 - r, sub_exp);
97 static int32_t decode_signed_subexp_with_ref(uint32_t sub_exp, int low,
100 int32_t x = decode_unsigned_subexp_with_ref(sub_exp, high - low, r - low);
104 static void read_global_param(AV1DecContext *s, int type, int ref, int idx)
106 uint8_t primary_frame, prev_frame;
107 uint32_t abs_bits, prec_bits, round, prec_diff, sub, mx;
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;
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;
122 abs_bits = AV1_GM_ABS_TRANS_BITS;
123 prec_bits = AV1_GM_TRANS_PREC_BITS;
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;
130 r = (s->ref[prev_frame].gm_params[ref][idx] >> prec_diff) - sub;
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;
138 * update gm type/params, since cbs already implemented part of this funcation,
139 * so we don't need to full implement spec.
141 static void global_motion_params(AV1DecContext *s)
143 const AV1RawFrameHeader *header = s->raw_frame_header;
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;
152 if (header->frame_type == AV1_FRAME_KEY ||
153 header->frame_type == AV1_FRAME_INTRA_ONLY)
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;
161 type = header->is_translation[ref] ? AV1_WARP_MODEL_TRANSLATION
162 : AV1_WARP_MODEL_AFFINE;
165 type = AV1_WARP_MODEL_IDENTITY;
167 s->cur_frame.gm_type[ref] = type;
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);
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];
180 if (type >= AV1_WARP_MODEL_TRANSLATION) {
181 read_global_param(s, type, ref, 0);
182 read_global_param(s, type, ref, 1);
187 static int init_tile_data(AV1DecContext *s)
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));
200 s->tile_num = cur_tile_num;
205 static int get_tiles_info(AVCodecContext *avctx, const AV1RawTileGroup *tile_group)
207 AV1DecContext *s = avctx->priv_data;
209 uint16_t tile_num, tile_row, tile_col;
210 uint32_t size = 0, size_bytes = 0;
212 bytestream2_init(&gb, tile_group->tile_data.data,
213 tile_group->tile_data.data_size);
214 s->tg_start = tile_group->tg_start;
215 s->tg_end = tile_group->tg_end;
217 for (tile_num = tile_group->tg_start; tile_num <= tile_group->tg_end; tile_num++) {
218 tile_row = tile_num / s->raw_frame_header->tile_cols;
219 tile_col = tile_num % s->raw_frame_header->tile_cols;
221 if (tile_num == tile_group->tg_end) {
222 s->tile_group_info[tile_num].tile_size = bytestream2_get_bytes_left(&gb);
223 s->tile_group_info[tile_num].tile_offset = bytestream2_tell(&gb);
224 s->tile_group_info[tile_num].tile_row = tile_row;
225 s->tile_group_info[tile_num].tile_column = tile_col;
228 size_bytes = s->raw_frame_header->tile_size_bytes_minus1 + 1;
229 if (bytestream2_get_bytes_left(&gb) < size_bytes)
230 return AVERROR_INVALIDDATA;
232 for (int i = 0; i < size_bytes; i++)
233 size |= bytestream2_get_byteu(&gb) << 8 * i;
234 if (bytestream2_get_bytes_left(&gb) <= size)
235 return AVERROR_INVALIDDATA;
238 s->tile_group_info[tile_num].tile_size = size;
239 s->tile_group_info[tile_num].tile_offset = bytestream2_tell(&gb);
240 s->tile_group_info[tile_num].tile_row = tile_row;
241 s->tile_group_info[tile_num].tile_column = tile_col;
243 bytestream2_skipu(&gb, size);
250 static int get_pixel_format(AVCodecContext *avctx)
252 AV1DecContext *s = avctx->priv_data;
253 const AV1RawSequenceHeader *seq = s->raw_seq;
256 enum AVPixelFormat pix_fmt = AV_PIX_FMT_NONE;
257 #define HWACCEL_MAX (0)
258 enum AVPixelFormat pix_fmts[HWACCEL_MAX + 2], *fmtp = pix_fmts;
260 if (seq->seq_profile == 2 && seq->color_config.high_bitdepth)
261 bit_depth = seq->color_config.twelve_bit ? 12 : 10;
262 else if (seq->seq_profile <= 2)
263 bit_depth = seq->color_config.high_bitdepth ? 10 : 8;
265 av_log(avctx, AV_LOG_ERROR,
266 "Unknown AV1 profile %d.\n", seq->seq_profile);
270 if (!seq->color_config.mono_chrome) {
271 // 4:4:4 x:0 y:0, 4:2:2 x:1 y:0, 4:2:0 x:1 y:1
272 if (seq->color_config.subsampling_x == 0 &&
273 seq->color_config.subsampling_y == 0) {
275 pix_fmt = AV_PIX_FMT_YUV444P;
276 else if (bit_depth == 10)
277 pix_fmt = AV_PIX_FMT_YUV444P10;
278 else if (bit_depth == 12)
279 pix_fmt = AV_PIX_FMT_YUV444P12;
281 av_log(avctx, AV_LOG_WARNING, "Unknown AV1 pixel format.\n");
282 } else if (seq->color_config.subsampling_x == 1 &&
283 seq->color_config.subsampling_y == 0) {
285 pix_fmt = AV_PIX_FMT_YUV422P;
286 else if (bit_depth == 10)
287 pix_fmt = AV_PIX_FMT_YUV422P10;
288 else if (bit_depth == 12)
289 pix_fmt = AV_PIX_FMT_YUV422P12;
291 av_log(avctx, AV_LOG_WARNING, "Unknown AV1 pixel format.\n");
292 } else if (seq->color_config.subsampling_x == 1 &&
293 seq->color_config.subsampling_y == 1) {
295 pix_fmt = AV_PIX_FMT_YUV420P;
296 else if (bit_depth == 10)
297 pix_fmt = AV_PIX_FMT_YUV420P10;
298 else if (bit_depth == 12)
299 pix_fmt = AV_PIX_FMT_YUV420P12;
301 av_log(avctx, AV_LOG_WARNING, "Unknown AV1 pixel format.\n");
304 if (seq->color_config.subsampling_x == 1 &&
305 seq->color_config.subsampling_y == 1)
306 pix_fmt = AV_PIX_FMT_YUV440P;
308 av_log(avctx, AV_LOG_WARNING, "Unknown AV1 pixel format.\n");
311 av_log(avctx, AV_LOG_DEBUG, "AV1 decode get format: %s.\n",
312 av_get_pix_fmt_name(pix_fmt));
314 if (pix_fmt == AV_PIX_FMT_NONE)
316 s->pix_fmt = pix_fmt;
318 *fmtp++ = s->pix_fmt;
319 *fmtp = AV_PIX_FMT_NONE;
321 ret = ff_thread_get_format(avctx, pix_fmts);
326 * check if the HW accel is inited correctly. If not, return un-implemented.
327 * Since now the av1 decoder doesn't support native decode, if it will be
328 * implemented in the future, need remove this check.
330 if (!avctx->hwaccel) {
331 av_log(avctx, AV_LOG_ERROR, "Your platform doesn't suppport"
332 " hardware accelerated AV1 decoding.\n");
333 return AVERROR(ENOSYS);
336 avctx->pix_fmt = ret;
341 static void av1_frame_unref(AVCodecContext *avctx, AV1Frame *f)
343 ff_thread_release_buffer(avctx, &f->tf);
344 av_buffer_unref(&f->hwaccel_priv_buf);
345 f->hwaccel_picture_private = NULL;
348 static int av1_frame_ref(AVCodecContext *avctx, AV1Frame *dst, const AV1Frame *src)
352 ret = ff_thread_ref_frame(&dst->tf, &src->tf);
356 if (src->hwaccel_picture_private) {
357 dst->hwaccel_priv_buf = av_buffer_ref(src->hwaccel_priv_buf);
358 if (!dst->hwaccel_priv_buf)
360 dst->hwaccel_picture_private = dst->hwaccel_priv_buf->data;
363 dst->loop_filter_delta_enabled = src->loop_filter_delta_enabled;
364 memcpy(dst->loop_filter_ref_deltas,
365 src->loop_filter_ref_deltas,
366 AV1_NUM_REF_FRAMES * sizeof(int8_t));
367 memcpy(dst->loop_filter_mode_deltas,
368 src->loop_filter_mode_deltas,
372 AV1_NUM_REF_FRAMES * sizeof(uint8_t));
373 memcpy(dst->gm_params,
375 AV1_NUM_REF_FRAMES * 6 * sizeof(int32_t));
380 av1_frame_unref(avctx, dst);
381 return AVERROR(ENOMEM);
384 static av_cold int av1_decode_free(AVCodecContext *avctx)
386 AV1DecContext *s = avctx->priv_data;
388 for (int i = 0; i < FF_ARRAY_ELEMS(s->ref); i++) {
389 av1_frame_unref(avctx, &s->ref[i]);
390 av_frame_free(&s->ref[i].tf.f);
392 av1_frame_unref(avctx, &s->cur_frame);
393 av_frame_free(&s->cur_frame.tf.f);
395 av_buffer_unref(&s->seq_ref);
396 av_buffer_unref(&s->header_ref);
397 av_freep(&s->tile_group_info);
399 ff_cbs_fragment_free(&s->current_obu);
400 ff_cbs_close(&s->cbc);
405 static int set_context_with_sequence(AVCodecContext *avctx,
406 const AV1RawSequenceHeader *seq)
408 int width = seq->max_frame_width_minus_1 + 1;
409 int height = seq->max_frame_height_minus_1 + 1;
411 avctx->profile = seq->seq_profile;
412 avctx->level = seq->seq_level_idx[0];
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;
420 switch (seq->color_config.chroma_sample_position) {
421 case AV1_CSP_VERTICAL:
422 avctx->chroma_sample_location = AVCHROMA_LOC_LEFT;
424 case AV1_CSP_COLOCATED:
425 avctx->chroma_sample_location = AVCHROMA_LOC_TOPLEFT;
429 if (avctx->width != width || avctx->height != height) {
430 int ret = ff_set_dimensions(avctx, width, height);
434 avctx->sample_aspect_ratio = (AVRational) { 1, 1 };
436 if (seq->timing_info.num_units_in_display_tick &&
437 seq->timing_info.time_scale) {
438 av_reduce(&avctx->framerate.den, &avctx->framerate.num,
439 seq->timing_info.num_units_in_display_tick,
440 seq->timing_info.time_scale,
442 if (seq->timing_info.equal_picture_interval)
443 avctx->ticks_per_frame = seq->timing_info.num_ticks_per_picture_minus_1 + 1;
449 static int update_context_with_frame_header(AVCodecContext *avctx,
450 const AV1RawFrameHeader *header)
452 AVRational aspect_ratio;
453 int width = header->frame_width_minus_1 + 1;
454 int height = header->frame_height_minus_1 + 1;
455 int r_width = header->render_width_minus_1 + 1;
456 int r_height = header->render_height_minus_1 + 1;
459 if (avctx->width != width || avctx->height != height) {
460 ret = ff_set_dimensions(avctx, width, height);
465 av_reduce(&aspect_ratio.num, &aspect_ratio.den,
466 (int64_t)height * r_width,
467 (int64_t)width * r_height,
470 if (av_cmp_q(avctx->sample_aspect_ratio, aspect_ratio)) {
471 ret = ff_set_sar(avctx, aspect_ratio);
479 static av_cold int av1_decode_init(AVCodecContext *avctx)
481 AV1DecContext *s = avctx->priv_data;
482 AV1RawSequenceHeader *seq;
486 s->pix_fmt = AV_PIX_FMT_NONE;
488 for (int i = 0; i < FF_ARRAY_ELEMS(s->ref); i++) {
489 s->ref[i].tf.f = av_frame_alloc();
490 if (!s->ref[i].tf.f) {
491 av_log(avctx, AV_LOG_ERROR,
492 "Failed to allocate reference frame buffer %d.\n", i);
493 return AVERROR(ENOMEM);
497 s->cur_frame.tf.f = av_frame_alloc();
498 if (!s->cur_frame.tf.f) {
499 av_log(avctx, AV_LOG_ERROR,
500 "Failed to allocate current frame buffer.\n");
501 return AVERROR(ENOMEM);
504 ret = ff_cbs_init(&s->cbc, AV_CODEC_ID_AV1, avctx);
508 if (avctx->extradata && avctx->extradata_size) {
509 ret = ff_cbs_read(s->cbc, &s->current_obu, avctx->extradata,
510 avctx->extradata_size);
512 av_log(avctx, AV_LOG_WARNING, "Failed to read extradata.\n");
516 seq = ((CodedBitstreamAV1Context *)(s->cbc->priv_data))->sequence_header;
518 av_log(avctx, AV_LOG_WARNING, "No sequence header available.\n");
522 ret = set_context_with_sequence(avctx, seq);
524 av_log(avctx, AV_LOG_WARNING, "Failed to set decoder context.\n");
529 ff_cbs_fragment_reset(&s->current_obu);
535 static int av1_frame_alloc(AVCodecContext *avctx, AV1Frame *f)
537 AV1DecContext *s = avctx->priv_data;
538 AV1RawFrameHeader *header= s->raw_frame_header;
542 ret = update_context_with_frame_header(avctx, header);
544 av_log(avctx, AV_LOG_ERROR, "Failed to update context with frame header\n");
548 if ((ret = ff_thread_get_buffer(avctx, &f->tf, AV_GET_BUFFER_FLAG_REF)) < 0)
552 frame->key_frame = header->frame_type == AV1_FRAME_KEY;
554 switch (header->frame_type) {
556 case AV1_FRAME_INTRA_ONLY:
557 frame->pict_type = AV_PICTURE_TYPE_I;
559 case AV1_FRAME_INTER:
560 frame->pict_type = AV_PICTURE_TYPE_P;
562 case AV1_FRAME_SWITCH:
563 frame->pict_type = AV_PICTURE_TYPE_SP;
567 if (avctx->hwaccel) {
568 const AVHWAccel *hwaccel = avctx->hwaccel;
569 if (hwaccel->frame_priv_data_size) {
570 f->hwaccel_priv_buf =
571 av_buffer_allocz(hwaccel->frame_priv_data_size);
572 if (!f->hwaccel_priv_buf)
574 f->hwaccel_picture_private = f->hwaccel_priv_buf->data;
580 av1_frame_unref(avctx, f);
581 return AVERROR(ENOMEM);
584 static int set_output_frame(AVCodecContext *avctx, AVFrame *frame,
585 const AVPacket *pkt, int *got_frame)
587 AV1DecContext *s = avctx->priv_data;
588 const AVFrame *srcframe = s->cur_frame.tf.f;
591 ret = av_frame_ref(frame, srcframe);
595 frame->pts = pkt->pts;
596 frame->pkt_dts = pkt->dts;
597 frame->pkt_size = pkt->size;
604 static int update_reference_list(AVCodecContext *avctx)
606 AV1DecContext *s = avctx->priv_data;
607 const AV1RawFrameHeader *header = s->raw_frame_header;
610 for (int i = 0; i < AV1_NUM_REF_FRAMES; i++) {
611 if (header->refresh_frame_flags & (1 << i)) {
612 if (s->ref[i].tf.f->buf[0])
613 av1_frame_unref(avctx, &s->ref[i]);
614 if ((ret = av1_frame_ref(avctx, &s->ref[i], &s->cur_frame)) < 0) {
615 av_log(avctx, AV_LOG_ERROR,
616 "Failed to update frame %d in reference list\n", i);
624 static int get_current_frame(AVCodecContext *avctx)
626 AV1DecContext *s = avctx->priv_data;
629 if (s->cur_frame.tf.f->buf[0])
630 av1_frame_unref(avctx, &s->cur_frame);
632 ret = av1_frame_alloc(avctx, &s->cur_frame);
634 av_log(avctx, AV_LOG_ERROR,
635 "Failed to allocate space for current frame.\n");
639 ret = init_tile_data(s);
641 av_log(avctx, AV_LOG_ERROR, "Failed to init tile data.\n");
645 if (s->raw_frame_header->primary_ref_frame == AV1_PRIMARY_REF_NONE)
646 setup_past_independence(&s->cur_frame);
648 load_previous_and_update(s);
650 global_motion_params(s);
655 static int av1_decode_frame(AVCodecContext *avctx, void *frame,
656 int *got_frame, AVPacket *pkt)
658 AV1DecContext *s = avctx->priv_data;
659 AV1RawTileGroup *raw_tile_group = NULL;
662 ret = ff_cbs_read_packet(s->cbc, &s->current_obu, pkt);
664 av_log(avctx, AV_LOG_ERROR, "Failed to read packet.\n");
667 av_log(avctx, AV_LOG_DEBUG, "Total obu for this frame:%d.\n",
668 s->current_obu.nb_units);
670 for (int i = 0; i < s->current_obu.nb_units; i++) {
671 CodedBitstreamUnit *unit = &s->current_obu.units[i];
672 AV1RawOBU *obu = unit->content;
673 av_log(avctx, AV_LOG_DEBUG, "Obu idx:%d, obu type:%d.\n", i, unit->type);
675 switch (unit->type) {
676 case AV1_OBU_SEQUENCE_HEADER:
677 av_buffer_unref(&s->seq_ref);
678 s->seq_ref = av_buffer_ref(unit->content_ref);
680 ret = AVERROR(ENOMEM);
684 s->raw_seq = &obu->obu.sequence_header;
686 ret = set_context_with_sequence(avctx, s->raw_seq);
688 av_log(avctx, AV_LOG_ERROR, "Failed to set context.\n");
693 if (s->pix_fmt == AV_PIX_FMT_NONE) {
694 ret = get_pixel_format(avctx);
696 av_log(avctx, AV_LOG_ERROR,
697 "Failed to get pixel format.\n");
703 if (avctx->hwaccel && avctx->hwaccel->decode_params) {
704 ret = avctx->hwaccel->decode_params(avctx, unit->type, unit->data,
707 av_log(avctx, AV_LOG_ERROR, "HW accel decode params fail.\n");
713 case AV1_OBU_REDUNDANT_FRAME_HEADER:
714 if (s->raw_frame_header)
718 case AV1_OBU_FRAME_HEADER:
720 av_log(avctx, AV_LOG_ERROR, "Missing Sequence Header.\n");
721 ret = AVERROR_INVALIDDATA;
725 av_buffer_unref(&s->header_ref);
726 s->header_ref = av_buffer_ref(unit->content_ref);
727 if (!s->header_ref) {
728 ret = AVERROR(ENOMEM);
732 if (unit->type == AV1_OBU_FRAME)
733 s->raw_frame_header = &obu->obu.frame.header;
735 s->raw_frame_header = &obu->obu.frame_header;
737 if (s->raw_frame_header->show_existing_frame) {
738 if (s->cur_frame.tf.f->buf[0])
739 av1_frame_unref(avctx, &s->cur_frame);
741 ret = av1_frame_ref(avctx, &s->cur_frame,
742 &s->ref[s->raw_frame_header->frame_to_show_map_idx]);
744 av_log(avctx, AV_LOG_ERROR, "Failed to get reference frame.\n");
748 ret = update_reference_list(avctx);
750 av_log(avctx, AV_LOG_ERROR, "Failed to update reference list.\n");
754 ret = set_output_frame(avctx, frame, pkt, got_frame);
756 av_log(avctx, AV_LOG_ERROR, "Set output frame error.\n");
758 s->raw_frame_header = NULL;
763 ret = get_current_frame(avctx);
765 av_log(avctx, AV_LOG_ERROR, "Get current frame error\n");
769 if (avctx->hwaccel) {
770 ret = avctx->hwaccel->start_frame(avctx, unit->data,
773 av_log(avctx, AV_LOG_ERROR, "HW accel start frame fail.\n");
777 if (unit->type != AV1_OBU_FRAME)
780 case AV1_OBU_TILE_GROUP:
781 if (!s->raw_frame_header) {
782 av_log(avctx, AV_LOG_ERROR, "Missing Frame Header.\n");
783 ret = AVERROR_INVALIDDATA;
787 if (unit->type == AV1_OBU_FRAME)
788 raw_tile_group = &obu->obu.frame.tile_group;
790 raw_tile_group = &obu->obu.tile_group;
792 ret = get_tiles_info(avctx, raw_tile_group);
796 if (avctx->hwaccel) {
797 ret = avctx->hwaccel->decode_slice(avctx,
798 raw_tile_group->tile_data.data,
799 raw_tile_group->tile_data.data_size);
801 av_log(avctx, AV_LOG_ERROR,
802 "HW accel decode slice fail.\n");
807 case AV1_OBU_TILE_LIST:
808 case AV1_OBU_TEMPORAL_DELIMITER:
809 case AV1_OBU_PADDING:
810 case AV1_OBU_METADATA:
813 av_log(avctx, AV_LOG_DEBUG,
814 "Unknown obu type: %d (%"SIZE_SPECIFIER" bits).\n",
815 unit->type, unit->data_size);
818 if (raw_tile_group && (s->tile_num == raw_tile_group->tg_end + 1)) {
819 if (avctx->hwaccel) {
820 ret = avctx->hwaccel->end_frame(avctx);
822 av_log(avctx, AV_LOG_ERROR, "HW accel end frame fail.\n");
827 ret = update_reference_list(avctx);
829 av_log(avctx, AV_LOG_ERROR, "Failed to update reference list.\n");
833 if (s->raw_frame_header->show_frame) {
834 ret = set_output_frame(avctx, frame, pkt, got_frame);
836 av_log(avctx, AV_LOG_ERROR, "Set output frame error\n");
840 raw_tile_group = NULL;
841 s->raw_frame_header = NULL;
846 ff_cbs_fragment_reset(&s->current_obu);
848 s->raw_frame_header = NULL;
852 static void av1_decode_flush(AVCodecContext *avctx)
854 AV1DecContext *s = avctx->priv_data;
856 for (int i = 0; i < FF_ARRAY_ELEMS(s->ref); i++)
857 av1_frame_unref(avctx, &s->ref[i]);
859 av1_frame_unref(avctx, &s->cur_frame);
860 s->raw_frame_header = NULL;
863 ff_cbs_flush(s->cbc);
866 AVCodec ff_av1_decoder = {
868 .long_name = NULL_IF_CONFIG_SMALL("Alliance for Open Media AV1"),
869 .type = AVMEDIA_TYPE_VIDEO,
870 .id = AV_CODEC_ID_AV1,
871 .priv_data_size = sizeof(AV1DecContext),
872 .init = av1_decode_init,
873 .close = av1_decode_free,
874 .decode = av1_decode_frame,
875 .capabilities = AV_CODEC_CAP_DR1,
876 .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE |
877 FF_CODEC_CAP_INIT_CLEANUP |
878 FF_CODEC_CAP_SETS_PKT_DTS,
879 .flush = av1_decode_flush,
880 .profiles = NULL_IF_CONFIG_SMALL(ff_av1_profiles),
881 .hw_configs = (const AVCodecHWConfigInternal * []) {