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 uint32_t inverse_recenter(int r, uint32_t v)
34 return r - ((v + 1) >> 1);
39 static uint32_t decode_unsigned_subexp_with_ref(uint32_t sub_exp,
43 return inverse_recenter(r, sub_exp);
45 return mx - 1 - inverse_recenter(mx - 1 - r, sub_exp);
49 static int32_t decode_signed_subexp_with_ref(uint32_t sub_exp, int low,
52 int32_t x = decode_unsigned_subexp_with_ref(sub_exp, high - low, r - low);
56 static void read_global_param(AV1DecContext *s, int type, int ref, int idx)
58 uint8_t primary_frame, prev_frame;
59 uint32_t abs_bits, prec_bits, round, prec_diff, sub, mx;
60 int32_t r, prev_gm_param;
62 primary_frame = s->raw_frame_header->primary_ref_frame;
63 prev_frame = s->raw_frame_header->ref_frame_idx[primary_frame];
64 abs_bits = AV1_GM_ABS_ALPHA_BITS;
65 prec_bits = AV1_GM_ALPHA_PREC_BITS;
67 /* setup_past_independence() sets PrevGmParams to default values. We can
68 * simply point to the current's frame gm_params as they will be initialized
69 * with defaults at this point.
71 if (s->raw_frame_header->primary_ref_frame == AV1_PRIMARY_REF_NONE)
72 prev_gm_param = s->cur_frame.gm_params[ref][idx];
74 prev_gm_param = s->ref[prev_frame].gm_params[ref][idx];
77 if (type == AV1_WARP_MODEL_TRANSLATION) {
78 abs_bits = AV1_GM_ABS_TRANS_ONLY_BITS -
79 !s->raw_frame_header->allow_high_precision_mv;
80 prec_bits = AV1_GM_TRANS_ONLY_PREC_BITS -
81 !s->raw_frame_header->allow_high_precision_mv;
83 abs_bits = AV1_GM_ABS_TRANS_BITS;
84 prec_bits = AV1_GM_TRANS_PREC_BITS;
87 round = (idx % 3) == 2 ? (1 << AV1_WARPEDMODEL_PREC_BITS) : 0;
88 prec_diff = AV1_WARPEDMODEL_PREC_BITS - prec_bits;
89 sub = (idx % 3) == 2 ? (1 << prec_bits) : 0;
91 r = (prev_gm_param >> prec_diff) - sub;
93 s->cur_frame.gm_params[ref][idx] =
94 (decode_signed_subexp_with_ref(s->raw_frame_header->gm_params[ref][idx],
95 -mx, mx + 1, r) << prec_diff) + round;
99 * update gm type/params, since cbs already implemented part of this funcation,
100 * so we don't need to full implement spec.
102 static void global_motion_params(AV1DecContext *s)
104 const AV1RawFrameHeader *header = s->raw_frame_header;
107 for (ref = AV1_REF_FRAME_LAST; ref <= AV1_REF_FRAME_ALTREF; ref++) {
108 s->cur_frame.gm_type[ref] = AV1_WARP_MODEL_IDENTITY;
109 for (int i = 0; i < 6; i++)
110 s->cur_frame.gm_params[ref][i] = (i % 3 == 2) ?
111 1 << AV1_WARPEDMODEL_PREC_BITS : 0;
113 if (header->frame_type == AV1_FRAME_KEY ||
114 header->frame_type == AV1_FRAME_INTRA_ONLY)
117 for (ref = AV1_REF_FRAME_LAST; ref <= AV1_REF_FRAME_ALTREF; ref++) {
118 if (header->is_global[ref]) {
119 if (header->is_rot_zoom[ref]) {
120 type = AV1_WARP_MODEL_ROTZOOM;
122 type = header->is_translation[ref] ? AV1_WARP_MODEL_TRANSLATION
123 : AV1_WARP_MODEL_AFFINE;
126 type = AV1_WARP_MODEL_IDENTITY;
128 s->cur_frame.gm_type[ref] = type;
130 if (type >= AV1_WARP_MODEL_ROTZOOM) {
131 read_global_param(s, type, ref, 2);
132 read_global_param(s, type, ref, 3);
133 if (type == AV1_WARP_MODEL_AFFINE) {
134 read_global_param(s, type, ref, 4);
135 read_global_param(s, type, ref, 5);
137 s->cur_frame.gm_params[ref][4] = -s->cur_frame.gm_params[ref][3];
138 s->cur_frame.gm_params[ref][5] = s->cur_frame.gm_params[ref][2];
141 if (type >= AV1_WARP_MODEL_TRANSLATION) {
142 read_global_param(s, type, ref, 0);
143 read_global_param(s, type, ref, 1);
148 static int get_relative_dist(const AV1RawSequenceHeader *seq,
149 unsigned int a, unsigned int b)
151 unsigned int diff = a - b;
152 unsigned int m = 1 << seq->order_hint_bits_minus_1;
153 return (diff & (m - 1)) - (diff & m);
156 static void skip_mode_params(AV1DecContext *s)
158 const AV1RawFrameHeader *header = s->raw_frame_header;
159 const AV1RawSequenceHeader *seq = s->raw_seq;
161 int forward_idx, backward_idx;
162 int forward_hint, backward_hint;
163 int second_forward_idx, second_forward_hint;
164 int ref_hint, dist, i;
166 if (!header->skip_mode_present)
171 for (i = 0; i < AV1_REFS_PER_FRAME; i++) {
172 ref_hint = s->ref[header->ref_frame_idx[i]].order_hint;
173 dist = get_relative_dist(seq, ref_hint, header->order_hint);
175 if (forward_idx < 0 ||
176 get_relative_dist(seq, ref_hint, forward_hint) > 0) {
178 forward_hint = ref_hint;
180 } else if (dist > 0) {
181 if (backward_idx < 0 ||
182 get_relative_dist(seq, ref_hint, backward_hint) < 0) {
184 backward_hint = ref_hint;
189 if (forward_idx < 0) {
191 } else if (backward_idx >= 0) {
192 s->cur_frame.skip_mode_frame_idx[0] =
193 AV1_REF_FRAME_LAST + FFMIN(forward_idx, backward_idx);
194 s->cur_frame.skip_mode_frame_idx[1] =
195 AV1_REF_FRAME_LAST + FFMAX(forward_idx, backward_idx);
199 second_forward_idx = -1;
200 for (i = 0; i < AV1_REFS_PER_FRAME; i++) {
201 ref_hint = s->ref[header->ref_frame_idx[i]].order_hint;
202 if (get_relative_dist(seq, ref_hint, forward_hint) < 0) {
203 if (second_forward_idx < 0 ||
204 get_relative_dist(seq, ref_hint, second_forward_hint) > 0) {
205 second_forward_idx = i;
206 second_forward_hint = ref_hint;
211 if (second_forward_idx < 0)
214 s->cur_frame.skip_mode_frame_idx[0] =
215 AV1_REF_FRAME_LAST + FFMIN(forward_idx, second_forward_idx);
216 s->cur_frame.skip_mode_frame_idx[1] =
217 AV1_REF_FRAME_LAST + FFMAX(forward_idx, second_forward_idx);
220 static void coded_lossless_param(AV1DecContext *s)
222 const AV1RawFrameHeader *header = s->raw_frame_header;
225 if (header->delta_q_y_dc || header->delta_q_u_ac ||
226 header->delta_q_u_dc || header->delta_q_v_ac ||
227 header->delta_q_v_dc) {
228 s->cur_frame.coded_lossless = 0;
232 s->cur_frame.coded_lossless = 1;
233 for (i = 0; i < AV1_MAX_SEGMENTS; i++) {
235 if (header->feature_enabled[i][AV1_SEG_LVL_ALT_Q]) {
236 qindex = (header->base_q_idx +
237 header->feature_value[i][AV1_SEG_LVL_ALT_Q]);
239 qindex = header->base_q_idx;
241 qindex = av_clip_uintp2(qindex, 8);
244 s->cur_frame.coded_lossless = 0;
250 static int init_tile_data(AV1DecContext *s)
254 s->raw_frame_header->tile_cols * s->raw_frame_header->tile_rows;
255 if (s->tile_num < cur_tile_num) {
256 int ret = av_reallocp_array(&s->tile_group_info, cur_tile_num,
257 sizeof(TileGroupInfo));
263 s->tile_num = cur_tile_num;
268 static int get_tiles_info(AVCodecContext *avctx, const AV1RawTileGroup *tile_group)
270 AV1DecContext *s = avctx->priv_data;
272 uint16_t tile_num, tile_row, tile_col;
273 uint32_t size = 0, size_bytes = 0;
275 bytestream2_init(&gb, tile_group->tile_data.data,
276 tile_group->tile_data.data_size);
277 s->tg_start = tile_group->tg_start;
278 s->tg_end = tile_group->tg_end;
280 for (tile_num = tile_group->tg_start; tile_num <= tile_group->tg_end; tile_num++) {
281 tile_row = tile_num / s->raw_frame_header->tile_cols;
282 tile_col = tile_num % s->raw_frame_header->tile_cols;
284 if (tile_num == tile_group->tg_end) {
285 s->tile_group_info[tile_num].tile_size = bytestream2_get_bytes_left(&gb);
286 s->tile_group_info[tile_num].tile_offset = bytestream2_tell(&gb);
287 s->tile_group_info[tile_num].tile_row = tile_row;
288 s->tile_group_info[tile_num].tile_column = tile_col;
291 size_bytes = s->raw_frame_header->tile_size_bytes_minus1 + 1;
292 if (bytestream2_get_bytes_left(&gb) < size_bytes)
293 return AVERROR_INVALIDDATA;
295 for (int i = 0; i < size_bytes; i++)
296 size |= bytestream2_get_byteu(&gb) << 8 * i;
297 if (bytestream2_get_bytes_left(&gb) <= size)
298 return AVERROR_INVALIDDATA;
301 s->tile_group_info[tile_num].tile_size = size;
302 s->tile_group_info[tile_num].tile_offset = bytestream2_tell(&gb);
303 s->tile_group_info[tile_num].tile_row = tile_row;
304 s->tile_group_info[tile_num].tile_column = tile_col;
306 bytestream2_skipu(&gb, size);
313 static int get_pixel_format(AVCodecContext *avctx)
315 AV1DecContext *s = avctx->priv_data;
316 const AV1RawSequenceHeader *seq = s->raw_seq;
319 enum AVPixelFormat pix_fmt = AV_PIX_FMT_NONE;
320 #define HWACCEL_MAX (CONFIG_AV1_DXVA2_HWACCEL + \
321 CONFIG_AV1_D3D11VA_HWACCEL * 2 + \
322 CONFIG_AV1_NVDEC_HWACCEL + \
323 CONFIG_AV1_VAAPI_HWACCEL)
324 enum AVPixelFormat pix_fmts[HWACCEL_MAX + 2], *fmtp = pix_fmts;
326 if (seq->seq_profile == 2 && seq->color_config.high_bitdepth)
327 bit_depth = seq->color_config.twelve_bit ? 12 : 10;
328 else if (seq->seq_profile <= 2)
329 bit_depth = seq->color_config.high_bitdepth ? 10 : 8;
331 av_log(avctx, AV_LOG_ERROR,
332 "Unknown AV1 profile %d.\n", seq->seq_profile);
336 if (!seq->color_config.mono_chrome) {
337 // 4:4:4 x:0 y:0, 4:2:2 x:1 y:0, 4:2:0 x:1 y:1
338 if (seq->color_config.subsampling_x == 0 &&
339 seq->color_config.subsampling_y == 0) {
341 pix_fmt = AV_PIX_FMT_YUV444P;
342 else if (bit_depth == 10)
343 pix_fmt = AV_PIX_FMT_YUV444P10;
344 else if (bit_depth == 12)
345 pix_fmt = AV_PIX_FMT_YUV444P12;
347 av_log(avctx, AV_LOG_WARNING, "Unknown AV1 pixel format.\n");
348 } else if (seq->color_config.subsampling_x == 1 &&
349 seq->color_config.subsampling_y == 0) {
351 pix_fmt = AV_PIX_FMT_YUV422P;
352 else if (bit_depth == 10)
353 pix_fmt = AV_PIX_FMT_YUV422P10;
354 else if (bit_depth == 12)
355 pix_fmt = AV_PIX_FMT_YUV422P12;
357 av_log(avctx, AV_LOG_WARNING, "Unknown AV1 pixel format.\n");
358 } else if (seq->color_config.subsampling_x == 1 &&
359 seq->color_config.subsampling_y == 1) {
361 pix_fmt = AV_PIX_FMT_YUV420P;
362 else if (bit_depth == 10)
363 pix_fmt = AV_PIX_FMT_YUV420P10;
364 else if (bit_depth == 12)
365 pix_fmt = AV_PIX_FMT_YUV420P12;
367 av_log(avctx, AV_LOG_WARNING, "Unknown AV1 pixel format.\n");
370 if (seq->color_config.subsampling_x == 1 &&
371 seq->color_config.subsampling_y == 1)
372 pix_fmt = AV_PIX_FMT_YUV440P;
374 av_log(avctx, AV_LOG_WARNING, "Unknown AV1 pixel format.\n");
377 av_log(avctx, AV_LOG_DEBUG, "AV1 decode get format: %s.\n",
378 av_get_pix_fmt_name(pix_fmt));
380 if (pix_fmt == AV_PIX_FMT_NONE)
382 s->pix_fmt = pix_fmt;
384 switch (s->pix_fmt) {
385 case AV_PIX_FMT_YUV420P:
386 #if CONFIG_AV1_DXVA2_HWACCEL
387 *fmtp++ = AV_PIX_FMT_DXVA2_VLD;
389 #if CONFIG_AV1_D3D11VA_HWACCEL
390 *fmtp++ = AV_PIX_FMT_D3D11VA_VLD;
391 *fmtp++ = AV_PIX_FMT_D3D11;
393 #if CONFIG_AV1_NVDEC_HWACCEL
394 *fmtp++ = AV_PIX_FMT_CUDA;
396 #if CONFIG_AV1_VAAPI_HWACCEL
397 *fmtp++ = AV_PIX_FMT_VAAPI;
400 case AV_PIX_FMT_YUV420P10:
401 #if CONFIG_AV1_DXVA2_HWACCEL
402 *fmtp++ = AV_PIX_FMT_DXVA2_VLD;
404 #if CONFIG_AV1_D3D11VA_HWACCEL
405 *fmtp++ = AV_PIX_FMT_D3D11VA_VLD;
406 *fmtp++ = AV_PIX_FMT_D3D11;
408 #if CONFIG_AV1_NVDEC_HWACCEL
409 *fmtp++ = AV_PIX_FMT_CUDA;
411 #if CONFIG_AV1_VAAPI_HWACCEL
412 *fmtp++ = AV_PIX_FMT_VAAPI;
417 *fmtp++ = s->pix_fmt;
418 *fmtp = AV_PIX_FMT_NONE;
420 ret = ff_thread_get_format(avctx, pix_fmts);
425 * check if the HW accel is inited correctly. If not, return un-implemented.
426 * Since now the av1 decoder doesn't support native decode, if it will be
427 * implemented in the future, need remove this check.
429 if (!avctx->hwaccel) {
430 av_log(avctx, AV_LOG_ERROR, "Your platform doesn't suppport"
431 " hardware accelerated AV1 decoding.\n");
432 return AVERROR(ENOSYS);
435 avctx->pix_fmt = ret;
440 static void av1_frame_unref(AVCodecContext *avctx, AV1Frame *f)
442 ff_thread_release_buffer(avctx, &f->tf);
443 av_buffer_unref(&f->hwaccel_priv_buf);
444 f->hwaccel_picture_private = NULL;
445 f->spatial_id = f->temporal_id = 0;
447 memset(f->skip_mode_frame_idx, 0,
448 2 * sizeof(uint8_t));
449 f->coded_lossless = 0;
452 static int av1_frame_ref(AVCodecContext *avctx, AV1Frame *dst, const AV1Frame *src)
456 ret = ff_thread_ref_frame(&dst->tf, &src->tf);
460 if (src->hwaccel_picture_private) {
461 dst->hwaccel_priv_buf = av_buffer_ref(src->hwaccel_priv_buf);
462 if (!dst->hwaccel_priv_buf)
464 dst->hwaccel_picture_private = dst->hwaccel_priv_buf->data;
467 dst->spatial_id = src->spatial_id;
468 dst->temporal_id = src->temporal_id;
471 AV1_NUM_REF_FRAMES * sizeof(uint8_t));
472 memcpy(dst->gm_params,
474 AV1_NUM_REF_FRAMES * 6 * sizeof(int32_t));
475 dst->order_hint = src->order_hint;
476 memcpy(dst->skip_mode_frame_idx,
477 src->skip_mode_frame_idx,
478 2 * sizeof(uint8_t));
479 dst->coded_lossless = src->coded_lossless;
484 av1_frame_unref(avctx, dst);
485 return AVERROR(ENOMEM);
488 static av_cold int av1_decode_free(AVCodecContext *avctx)
490 AV1DecContext *s = avctx->priv_data;
492 for (int i = 0; i < FF_ARRAY_ELEMS(s->ref); i++) {
493 av1_frame_unref(avctx, &s->ref[i]);
494 av_frame_free(&s->ref[i].tf.f);
496 av1_frame_unref(avctx, &s->cur_frame);
497 av_frame_free(&s->cur_frame.tf.f);
499 av_buffer_unref(&s->seq_ref);
500 av_buffer_unref(&s->header_ref);
501 av_freep(&s->tile_group_info);
503 ff_cbs_fragment_free(&s->current_obu);
504 ff_cbs_close(&s->cbc);
509 static int set_context_with_sequence(AVCodecContext *avctx,
510 const AV1RawSequenceHeader *seq)
512 int width = seq->max_frame_width_minus_1 + 1;
513 int height = seq->max_frame_height_minus_1 + 1;
515 avctx->profile = seq->seq_profile;
516 avctx->level = seq->seq_level_idx[0];
519 seq->color_config.color_range ? AVCOL_RANGE_JPEG : AVCOL_RANGE_MPEG;
520 avctx->color_primaries = seq->color_config.color_primaries;
521 avctx->colorspace = seq->color_config.color_primaries;
522 avctx->color_trc = seq->color_config.transfer_characteristics;
524 switch (seq->color_config.chroma_sample_position) {
525 case AV1_CSP_VERTICAL:
526 avctx->chroma_sample_location = AVCHROMA_LOC_LEFT;
528 case AV1_CSP_COLOCATED:
529 avctx->chroma_sample_location = AVCHROMA_LOC_TOPLEFT;
533 if (avctx->width != width || avctx->height != height) {
534 int ret = ff_set_dimensions(avctx, width, height);
538 avctx->sample_aspect_ratio = (AVRational) { 1, 1 };
540 if (seq->timing_info.num_units_in_display_tick &&
541 seq->timing_info.time_scale) {
542 av_reduce(&avctx->framerate.den, &avctx->framerate.num,
543 seq->timing_info.num_units_in_display_tick,
544 seq->timing_info.time_scale,
546 if (seq->timing_info.equal_picture_interval)
547 avctx->ticks_per_frame = seq->timing_info.num_ticks_per_picture_minus_1 + 1;
553 static int update_context_with_frame_header(AVCodecContext *avctx,
554 const AV1RawFrameHeader *header)
556 AVRational aspect_ratio;
557 int width = header->frame_width_minus_1 + 1;
558 int height = header->frame_height_minus_1 + 1;
559 int r_width = header->render_width_minus_1 + 1;
560 int r_height = header->render_height_minus_1 + 1;
563 if (avctx->width != width || avctx->height != height) {
564 ret = ff_set_dimensions(avctx, width, height);
569 av_reduce(&aspect_ratio.num, &aspect_ratio.den,
570 (int64_t)height * r_width,
571 (int64_t)width * r_height,
574 if (av_cmp_q(avctx->sample_aspect_ratio, aspect_ratio)) {
575 ret = ff_set_sar(avctx, aspect_ratio);
583 static av_cold int av1_decode_init(AVCodecContext *avctx)
585 AV1DecContext *s = avctx->priv_data;
586 AV1RawSequenceHeader *seq;
590 s->pix_fmt = AV_PIX_FMT_NONE;
592 for (int i = 0; i < FF_ARRAY_ELEMS(s->ref); i++) {
593 s->ref[i].tf.f = av_frame_alloc();
594 if (!s->ref[i].tf.f) {
595 av_log(avctx, AV_LOG_ERROR,
596 "Failed to allocate reference frame buffer %d.\n", i);
597 return AVERROR(ENOMEM);
601 s->cur_frame.tf.f = av_frame_alloc();
602 if (!s->cur_frame.tf.f) {
603 av_log(avctx, AV_LOG_ERROR,
604 "Failed to allocate current frame buffer.\n");
605 return AVERROR(ENOMEM);
608 ret = ff_cbs_init(&s->cbc, AV_CODEC_ID_AV1, avctx);
612 if (avctx->extradata && avctx->extradata_size) {
613 ret = ff_cbs_read(s->cbc, &s->current_obu, avctx->extradata,
614 avctx->extradata_size);
616 av_log(avctx, AV_LOG_WARNING, "Failed to read extradata.\n");
620 seq = ((CodedBitstreamAV1Context *)(s->cbc->priv_data))->sequence_header;
622 av_log(avctx, AV_LOG_WARNING, "No sequence header available.\n");
626 ret = set_context_with_sequence(avctx, seq);
628 av_log(avctx, AV_LOG_WARNING, "Failed to set decoder context.\n");
633 ff_cbs_fragment_reset(&s->current_obu);
639 static int av1_frame_alloc(AVCodecContext *avctx, AV1Frame *f)
641 AV1DecContext *s = avctx->priv_data;
642 AV1RawFrameHeader *header= s->raw_frame_header;
646 ret = update_context_with_frame_header(avctx, header);
648 av_log(avctx, AV_LOG_ERROR, "Failed to update context with frame header\n");
652 if ((ret = ff_thread_get_buffer(avctx, &f->tf, AV_GET_BUFFER_FLAG_REF)) < 0)
656 frame->key_frame = header->frame_type == AV1_FRAME_KEY;
658 switch (header->frame_type) {
660 case AV1_FRAME_INTRA_ONLY:
661 frame->pict_type = AV_PICTURE_TYPE_I;
663 case AV1_FRAME_INTER:
664 frame->pict_type = AV_PICTURE_TYPE_P;
666 case AV1_FRAME_SWITCH:
667 frame->pict_type = AV_PICTURE_TYPE_SP;
671 if (avctx->hwaccel) {
672 const AVHWAccel *hwaccel = avctx->hwaccel;
673 if (hwaccel->frame_priv_data_size) {
674 f->hwaccel_priv_buf =
675 av_buffer_allocz(hwaccel->frame_priv_data_size);
676 if (!f->hwaccel_priv_buf)
678 f->hwaccel_picture_private = f->hwaccel_priv_buf->data;
684 av1_frame_unref(avctx, f);
685 return AVERROR(ENOMEM);
688 static int set_output_frame(AVCodecContext *avctx, AVFrame *frame,
689 const AVPacket *pkt, int *got_frame)
691 AV1DecContext *s = avctx->priv_data;
692 const AVFrame *srcframe = s->cur_frame.tf.f;
695 ret = av_frame_ref(frame, srcframe);
699 frame->pts = pkt->pts;
700 frame->pkt_dts = pkt->dts;
701 frame->pkt_size = pkt->size;
708 static int update_reference_list(AVCodecContext *avctx)
710 AV1DecContext *s = avctx->priv_data;
711 const AV1RawFrameHeader *header = s->raw_frame_header;
714 for (int i = 0; i < AV1_NUM_REF_FRAMES; i++) {
715 if (header->refresh_frame_flags & (1 << i)) {
716 if (s->ref[i].tf.f->buf[0])
717 av1_frame_unref(avctx, &s->ref[i]);
718 if ((ret = av1_frame_ref(avctx, &s->ref[i], &s->cur_frame)) < 0) {
719 av_log(avctx, AV_LOG_ERROR,
720 "Failed to update frame %d in reference list\n", i);
728 static int get_current_frame(AVCodecContext *avctx)
730 AV1DecContext *s = avctx->priv_data;
733 if (s->cur_frame.tf.f->buf[0])
734 av1_frame_unref(avctx, &s->cur_frame);
736 ret = av1_frame_alloc(avctx, &s->cur_frame);
738 av_log(avctx, AV_LOG_ERROR,
739 "Failed to allocate space for current frame.\n");
743 ret = init_tile_data(s);
745 av_log(avctx, AV_LOG_ERROR, "Failed to init tile data.\n");
749 global_motion_params(s);
751 coded_lossless_param(s);
756 static int av1_decode_frame(AVCodecContext *avctx, void *frame,
757 int *got_frame, AVPacket *pkt)
759 AV1DecContext *s = avctx->priv_data;
760 AV1RawTileGroup *raw_tile_group = NULL;
763 ret = ff_cbs_read_packet(s->cbc, &s->current_obu, pkt);
765 av_log(avctx, AV_LOG_ERROR, "Failed to read packet.\n");
768 av_log(avctx, AV_LOG_DEBUG, "Total obu for this frame:%d.\n",
769 s->current_obu.nb_units);
771 for (int i = 0; i < s->current_obu.nb_units; i++) {
772 CodedBitstreamUnit *unit = &s->current_obu.units[i];
773 AV1RawOBU *obu = unit->content;
774 const AV1RawOBUHeader *header;
779 header = &obu->header;
780 av_log(avctx, AV_LOG_DEBUG, "Obu idx:%d, obu type:%d.\n", i, unit->type);
782 switch (unit->type) {
783 case AV1_OBU_SEQUENCE_HEADER:
784 av_buffer_unref(&s->seq_ref);
785 s->seq_ref = av_buffer_ref(unit->content_ref);
787 ret = AVERROR(ENOMEM);
791 s->raw_seq = &obu->obu.sequence_header;
793 ret = set_context_with_sequence(avctx, s->raw_seq);
795 av_log(avctx, AV_LOG_ERROR, "Failed to set context.\n");
800 if (s->pix_fmt == AV_PIX_FMT_NONE) {
801 ret = get_pixel_format(avctx);
803 av_log(avctx, AV_LOG_ERROR,
804 "Failed to get pixel format.\n");
810 if (avctx->hwaccel && avctx->hwaccel->decode_params) {
811 ret = avctx->hwaccel->decode_params(avctx, unit->type, unit->data,
814 av_log(avctx, AV_LOG_ERROR, "HW accel decode params fail.\n");
820 case AV1_OBU_REDUNDANT_FRAME_HEADER:
821 if (s->raw_frame_header)
825 case AV1_OBU_FRAME_HEADER:
827 av_log(avctx, AV_LOG_ERROR, "Missing Sequence Header.\n");
828 ret = AVERROR_INVALIDDATA;
832 av_buffer_unref(&s->header_ref);
833 s->header_ref = av_buffer_ref(unit->content_ref);
834 if (!s->header_ref) {
835 ret = AVERROR(ENOMEM);
839 if (unit->type == AV1_OBU_FRAME)
840 s->raw_frame_header = &obu->obu.frame.header;
842 s->raw_frame_header = &obu->obu.frame_header;
844 if (s->raw_frame_header->show_existing_frame) {
845 if (s->cur_frame.tf.f->buf[0])
846 av1_frame_unref(avctx, &s->cur_frame);
848 ret = av1_frame_ref(avctx, &s->cur_frame,
849 &s->ref[s->raw_frame_header->frame_to_show_map_idx]);
851 av_log(avctx, AV_LOG_ERROR, "Failed to get reference frame.\n");
855 ret = update_reference_list(avctx);
857 av_log(avctx, AV_LOG_ERROR, "Failed to update reference list.\n");
861 ret = set_output_frame(avctx, frame, pkt, got_frame);
863 av_log(avctx, AV_LOG_ERROR, "Set output frame error.\n");
865 s->raw_frame_header = NULL;
870 ret = get_current_frame(avctx);
872 av_log(avctx, AV_LOG_ERROR, "Get current frame error\n");
876 s->cur_frame.spatial_id = header->spatial_id;
877 s->cur_frame.temporal_id = header->temporal_id;
879 s->cur_frame.order_hint = s->raw_frame_header->order_hint;
881 if (avctx->hwaccel) {
882 ret = avctx->hwaccel->start_frame(avctx, unit->data,
885 av_log(avctx, AV_LOG_ERROR, "HW accel start frame fail.\n");
889 if (unit->type != AV1_OBU_FRAME)
892 case AV1_OBU_TILE_GROUP:
893 if (!s->raw_frame_header) {
894 av_log(avctx, AV_LOG_ERROR, "Missing Frame Header.\n");
895 ret = AVERROR_INVALIDDATA;
899 if (unit->type == AV1_OBU_FRAME)
900 raw_tile_group = &obu->obu.frame.tile_group;
902 raw_tile_group = &obu->obu.tile_group;
904 ret = get_tiles_info(avctx, raw_tile_group);
908 if (avctx->hwaccel) {
909 ret = avctx->hwaccel->decode_slice(avctx,
910 raw_tile_group->tile_data.data,
911 raw_tile_group->tile_data.data_size);
913 av_log(avctx, AV_LOG_ERROR,
914 "HW accel decode slice fail.\n");
919 case AV1_OBU_TILE_LIST:
920 case AV1_OBU_TEMPORAL_DELIMITER:
921 case AV1_OBU_PADDING:
922 case AV1_OBU_METADATA:
925 av_log(avctx, AV_LOG_DEBUG,
926 "Unknown obu type: %d (%"SIZE_SPECIFIER" bits).\n",
927 unit->type, unit->data_size);
930 if (raw_tile_group && (s->tile_num == raw_tile_group->tg_end + 1)) {
931 if (avctx->hwaccel) {
932 ret = avctx->hwaccel->end_frame(avctx);
934 av_log(avctx, AV_LOG_ERROR, "HW accel end frame fail.\n");
939 ret = update_reference_list(avctx);
941 av_log(avctx, AV_LOG_ERROR, "Failed to update reference list.\n");
945 if (s->raw_frame_header->show_frame) {
946 ret = set_output_frame(avctx, frame, pkt, got_frame);
948 av_log(avctx, AV_LOG_ERROR, "Set output frame error\n");
952 raw_tile_group = NULL;
953 s->raw_frame_header = NULL;
958 ff_cbs_fragment_reset(&s->current_obu);
960 s->raw_frame_header = NULL;
964 static void av1_decode_flush(AVCodecContext *avctx)
966 AV1DecContext *s = avctx->priv_data;
968 for (int i = 0; i < FF_ARRAY_ELEMS(s->ref); i++)
969 av1_frame_unref(avctx, &s->ref[i]);
971 av1_frame_unref(avctx, &s->cur_frame);
972 s->raw_frame_header = NULL;
975 ff_cbs_flush(s->cbc);
978 AVCodec ff_av1_decoder = {
980 .long_name = NULL_IF_CONFIG_SMALL("Alliance for Open Media AV1"),
981 .type = AVMEDIA_TYPE_VIDEO,
982 .id = AV_CODEC_ID_AV1,
983 .priv_data_size = sizeof(AV1DecContext),
984 .init = av1_decode_init,
985 .close = av1_decode_free,
986 .decode = av1_decode_frame,
987 .capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_AVOID_PROBING,
988 .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE |
989 FF_CODEC_CAP_INIT_CLEANUP |
990 FF_CODEC_CAP_SETS_PKT_DTS,
991 .flush = av1_decode_flush,
992 .profiles = NULL_IF_CONFIG_SMALL(ff_av1_profiles),
993 .hw_configs = (const AVCodecHWConfigInternal * []) {
994 #if CONFIG_AV1_DXVA2_HWACCEL
997 #if CONFIG_AV1_D3D11VA_HWACCEL
998 HWACCEL_D3D11VA(av1),
1000 #if CONFIG_AV1_D3D11VA2_HWACCEL
1001 HWACCEL_D3D11VA2(av1),
1003 #if CONFIG_AV1_NVDEC_HWACCEL
1006 #if CONFIG_AV1_VAAPI_HWACCEL