2020-09-09 03:39:55 +00:00
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/*
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* AV1 video decoder
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "libavutil/pixdesc.h"
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#include "avcodec.h"
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#include "av1dec.h"
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2020-09-17 03:09:19 +00:00
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#include "bytestream.h"
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2020-09-09 03:39:55 +00:00
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#include "hwconfig.h"
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#include "internal.h"
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#include "profiles.h"
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static void setup_past_independence(AV1Frame *f)
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{
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f->loop_filter_delta_enabled = 1;
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f->loop_filter_ref_deltas[AV1_REF_FRAME_INTRA] = 1;
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f->loop_filter_ref_deltas[AV1_REF_FRAME_LAST] = 0;
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f->loop_filter_ref_deltas[AV1_REF_FRAME_LAST2] = 0;
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f->loop_filter_ref_deltas[AV1_REF_FRAME_LAST3] = 0;
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f->loop_filter_ref_deltas[AV1_REF_FRAME_GOLDEN] = -1;
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f->loop_filter_ref_deltas[AV1_REF_FRAME_BWDREF] = 0;
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f->loop_filter_ref_deltas[AV1_REF_FRAME_ALTREF2] = -1;
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f->loop_filter_ref_deltas[AV1_REF_FRAME_ALTREF] = -1;
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f->loop_filter_mode_deltas[0] = 0;
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f->loop_filter_mode_deltas[1] = 0;
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}
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static void load_previous_and_update(AV1DecContext *s)
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{
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uint8_t primary_frame, prev_frame;
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primary_frame = s->raw_frame_header->primary_ref_frame;
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prev_frame = s->raw_frame_header->ref_frame_idx[primary_frame];
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memcpy(s->cur_frame.loop_filter_ref_deltas,
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s->ref[prev_frame].loop_filter_ref_deltas,
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AV1_NUM_REF_FRAMES * sizeof(int8_t));
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memcpy(s->cur_frame.loop_filter_mode_deltas,
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s->ref[prev_frame].loop_filter_mode_deltas,
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2 * sizeof(int8_t));
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if (s->raw_frame_header->loop_filter_delta_update) {
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for (int i = 0; i < AV1_NUM_REF_FRAMES; i++) {
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if (s->raw_frame_header->update_ref_delta[i])
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s->cur_frame.loop_filter_ref_deltas[i] =
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s->raw_frame_header->loop_filter_ref_deltas[i];
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}
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for (int i = 0; i < 2; i++) {
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if (s->raw_frame_header->update_mode_delta[i])
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s->cur_frame.loop_filter_mode_deltas[i] =
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s->raw_frame_header->loop_filter_mode_deltas[i];
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}
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}
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s->cur_frame.loop_filter_delta_enabled =
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s->raw_frame_header->loop_filter_delta_enabled;
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}
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static uint32_t inverse_recenter(int r, uint32_t v)
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{
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if (v > 2 * r)
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return v;
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else if (v & 1)
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return r - ((v + 1) >> 1);
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else
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return r + (v >> 1);
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}
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static uint32_t decode_unsigned_subexp_with_ref(uint32_t sub_exp,
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int mx, int r)
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{
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if ((r << 1) <= mx) {
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return inverse_recenter(r, sub_exp);
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} else {
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return mx - 1 - inverse_recenter(mx - 1 - r, sub_exp);
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}
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}
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static int32_t decode_signed_subexp_with_ref(uint32_t sub_exp, int low,
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int high, int r)
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{
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int32_t x = decode_unsigned_subexp_with_ref(sub_exp, high - low, r - low);
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return x + low;
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}
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static void read_global_param(AV1DecContext *s, int type, int ref, int idx)
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{
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uint8_t primary_frame, prev_frame;
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uint32_t abs_bits, prec_bits, round, prec_diff, sub, mx;
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int32_t r;
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primary_frame = s->raw_frame_header->primary_ref_frame;
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prev_frame = s->raw_frame_header->ref_frame_idx[primary_frame];
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abs_bits = AV1_GM_ABS_ALPHA_BITS;
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prec_bits = AV1_GM_ALPHA_PREC_BITS;
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if (idx < 2) {
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if (type == AV1_WARP_MODEL_TRANSLATION) {
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abs_bits = AV1_GM_ABS_TRANS_ONLY_BITS -
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!s->raw_frame_header->allow_high_precision_mv;
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prec_bits = AV1_GM_TRANS_ONLY_PREC_BITS -
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!s->raw_frame_header->allow_high_precision_mv;
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} else {
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abs_bits = AV1_GM_ABS_TRANS_BITS;
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prec_bits = AV1_GM_TRANS_PREC_BITS;
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}
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}
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round = (idx % 3) == 2 ? (1 << AV1_WARPEDMODEL_PREC_BITS) : 0;
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prec_diff = AV1_WARPEDMODEL_PREC_BITS - prec_bits;
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sub = (idx % 3) == 2 ? (1 << prec_bits) : 0;
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mx = 1 << abs_bits;
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r = (s->ref[prev_frame].gm_params[ref][idx] >> prec_diff) - sub;
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s->cur_frame.gm_params[ref][idx] =
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(decode_signed_subexp_with_ref(s->raw_frame_header->gm_params[ref][idx],
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-mx, mx + 1, r) << prec_diff) + round;
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}
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/**
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* update gm type/params, since cbs already implemented part of this funcation,
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* so we don't need to full implement spec.
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*/
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static void global_motion_params(AV1DecContext *s)
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{
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const AV1RawFrameHeader *header = s->raw_frame_header;
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int type, ref;
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for (ref = AV1_REF_FRAME_LAST; ref <= AV1_REF_FRAME_ALTREF; ref++) {
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s->cur_frame.gm_type[ref] = AV1_WARP_MODEL_IDENTITY;
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for (int i = 0; i < 6; i++)
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s->cur_frame.gm_params[ref][i] = (i % 3 == 2) ?
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1 << AV1_WARPEDMODEL_PREC_BITS : 0;
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}
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if (header->frame_type == AV1_FRAME_KEY ||
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header->frame_type == AV1_FRAME_INTRA_ONLY)
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return;
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for (ref = AV1_REF_FRAME_LAST; ref <= AV1_REF_FRAME_ALTREF; ref++) {
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if (header->is_global[ref]) {
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if (header->is_rot_zoom[ref]) {
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type = AV1_WARP_MODEL_ROTZOOM;
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} else {
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type = header->is_translation[ref] ? AV1_WARP_MODEL_TRANSLATION
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: AV1_WARP_MODEL_AFFINE;
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}
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} else {
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type = AV1_WARP_MODEL_IDENTITY;
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}
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s->cur_frame.gm_type[ref] = type;
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if (type >= AV1_WARP_MODEL_ROTZOOM) {
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read_global_param(s, type, ref, 2);
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read_global_param(s, type, ref, 3);
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if (type == AV1_WARP_MODEL_AFFINE) {
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read_global_param(s, type, ref, 4);
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read_global_param(s, type, ref, 5);
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} else {
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s->cur_frame.gm_params[ref][4] = -s->cur_frame.gm_params[ref][3];
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s->cur_frame.gm_params[ref][5] = s->cur_frame.gm_params[ref][2];
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}
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}
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if (type >= AV1_WARP_MODEL_TRANSLATION) {
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read_global_param(s, type, ref, 0);
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read_global_param(s, type, ref, 1);
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}
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}
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}
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static int init_tile_data(AV1DecContext *s)
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{
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int cur_tile_num =
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s->raw_frame_header->tile_cols * s->raw_frame_header->tile_rows;
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if (s->tile_num < cur_tile_num) {
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int ret = av_reallocp_array(&s->tile_group_info, cur_tile_num,
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sizeof(TileGroupInfo));
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if (ret < 0) {
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s->tile_num = 0;
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return ret;
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}
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}
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s->tile_num = cur_tile_num;
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return 0;
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}
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static int get_tiles_info(AVCodecContext *avctx, const AV1RawTileGroup *tile_group)
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{
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AV1DecContext *s = avctx->priv_data;
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2020-09-17 03:09:19 +00:00
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GetByteContext gb;
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2020-09-09 03:39:55 +00:00
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uint16_t tile_num, tile_row, tile_col;
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2020-09-17 03:09:19 +00:00
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uint32_t size = 0, size_bytes = 0;
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2020-09-09 03:39:55 +00:00
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2020-09-17 03:09:19 +00:00
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bytestream2_init(&gb, tile_group->tile_data.data,
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tile_group->tile_data.data_size);
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2020-09-09 03:39:55 +00:00
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s->tg_start = tile_group->tg_start;
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s->tg_end = tile_group->tg_end;
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for (tile_num = tile_group->tg_start; tile_num <= tile_group->tg_end; tile_num++) {
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tile_row = tile_num / s->raw_frame_header->tile_cols;
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tile_col = tile_num % s->raw_frame_header->tile_cols;
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if (tile_num == tile_group->tg_end) {
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2020-09-17 03:09:19 +00:00
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s->tile_group_info[tile_num].tile_size = bytestream2_get_bytes_left(&gb);
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s->tile_group_info[tile_num].tile_offset = bytestream2_tell(&gb);
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2020-09-09 03:39:55 +00:00
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s->tile_group_info[tile_num].tile_row = tile_row;
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s->tile_group_info[tile_num].tile_column = tile_col;
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return 0;
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}
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size_bytes = s->raw_frame_header->tile_size_bytes_minus1 + 1;
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2020-09-17 03:09:19 +00:00
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if (bytestream2_get_bytes_left(&gb) < size_bytes)
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return AVERROR_INVALIDDATA;
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size = 0;
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for (int i = 0; i < size_bytes; i++)
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size |= bytestream2_get_byteu(&gb) << 8 * i;
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if (bytestream2_get_bytes_left(&gb) <= size)
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return AVERROR_INVALIDDATA;
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size++;
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2020-09-09 03:39:55 +00:00
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s->tile_group_info[tile_num].tile_size = size;
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2020-09-17 03:09:19 +00:00
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s->tile_group_info[tile_num].tile_offset = bytestream2_tell(&gb);
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2020-09-09 03:39:55 +00:00
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s->tile_group_info[tile_num].tile_row = tile_row;
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s->tile_group_info[tile_num].tile_column = tile_col;
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2020-09-17 03:09:19 +00:00
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bytestream2_skipu(&gb, size);
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2020-09-09 03:39:55 +00:00
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}
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return 0;
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}
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static int get_pixel_format(AVCodecContext *avctx)
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{
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AV1DecContext *s = avctx->priv_data;
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const AV1RawSequenceHeader *seq = s->raw_seq;
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uint8_t bit_depth;
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int ret;
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enum AVPixelFormat pix_fmt = AV_PIX_FMT_NONE;
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#define HWACCEL_MAX (0)
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2020-09-12 20:39:45 +00:00
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enum AVPixelFormat pix_fmts[HWACCEL_MAX + 2], *fmtp = pix_fmts;
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2020-09-09 03:39:55 +00:00
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if (seq->seq_profile == 2 && seq->color_config.high_bitdepth)
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bit_depth = seq->color_config.twelve_bit ? 12 : 10;
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else if (seq->seq_profile <= 2)
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bit_depth = seq->color_config.high_bitdepth ? 10 : 8;
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else {
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av_log(avctx, AV_LOG_ERROR,
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"Unknown AV1 profile %d.\n", seq->seq_profile);
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return -1;
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}
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if (!seq->color_config.mono_chrome) {
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// 4:4:4 x:0 y:0, 4:2:2 x:1 y:0, 4:2:0 x:1 y:1
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if (seq->color_config.subsampling_x == 0 &&
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seq->color_config.subsampling_y == 0) {
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if (bit_depth == 8)
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pix_fmt = AV_PIX_FMT_YUV444P;
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else if (bit_depth == 10)
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pix_fmt = AV_PIX_FMT_YUV444P10;
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else if (bit_depth == 12)
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pix_fmt = AV_PIX_FMT_YUV444P12;
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else
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av_log(avctx, AV_LOG_WARNING, "Unknown AV1 pixel format.\n");
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} else if (seq->color_config.subsampling_x == 1 &&
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seq->color_config.subsampling_y == 0) {
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if (bit_depth == 8)
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pix_fmt = AV_PIX_FMT_YUV422P;
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else if (bit_depth == 10)
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pix_fmt = AV_PIX_FMT_YUV422P10;
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else if (bit_depth == 12)
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pix_fmt = AV_PIX_FMT_YUV422P12;
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else
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av_log(avctx, AV_LOG_WARNING, "Unknown AV1 pixel format.\n");
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} else if (seq->color_config.subsampling_x == 1 &&
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seq->color_config.subsampling_y == 1) {
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if (bit_depth == 8)
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pix_fmt = AV_PIX_FMT_YUV420P;
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else if (bit_depth == 10)
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pix_fmt = AV_PIX_FMT_YUV420P10;
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else if (bit_depth == 12)
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pix_fmt = AV_PIX_FMT_YUV420P12;
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else
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av_log(avctx, AV_LOG_WARNING, "Unknown AV1 pixel format.\n");
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}
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} else {
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if (seq->color_config.subsampling_x == 1 &&
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seq->color_config.subsampling_y == 1)
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pix_fmt = AV_PIX_FMT_YUV440P;
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else
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av_log(avctx, AV_LOG_WARNING, "Unknown AV1 pixel format.\n");
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}
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av_log(avctx, AV_LOG_DEBUG, "AV1 decode get format: %s.\n",
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av_get_pix_fmt_name(pix_fmt));
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if (pix_fmt == AV_PIX_FMT_NONE)
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|
return -1;
|
|
|
|
s->pix_fmt = pix_fmt;
|
|
|
|
|
2020-09-12 20:39:45 +00:00
|
|
|
*fmtp++ = s->pix_fmt;
|
2020-09-09 03:39:55 +00:00
|
|
|
*fmtp = AV_PIX_FMT_NONE;
|
2020-09-12 20:39:45 +00:00
|
|
|
|
2020-09-09 03:39:55 +00:00
|
|
|
ret = ff_thread_get_format(avctx, pix_fmts);
|
|
|
|
if (ret < 0)
|
|
|
|
return ret;
|
|
|
|
|
2020-09-12 20:39:45 +00:00
|
|
|
/**
|
|
|
|
* check if the HW accel is inited correctly. If not, return un-implemented.
|
|
|
|
* Since now the av1 decoder doesn't support native decode, if it will be
|
|
|
|
* implemented in the future, need remove this check.
|
|
|
|
*/
|
|
|
|
if (!avctx->hwaccel) {
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "Your platform doesn't suppport"
|
|
|
|
" hardware accelerated AV1 decoding.\n");
|
|
|
|
return AVERROR(ENOSYS);
|
|
|
|
}
|
|
|
|
|
2020-09-09 03:39:55 +00:00
|
|
|
avctx->pix_fmt = ret;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void av1_frame_unref(AVCodecContext *avctx, AV1Frame *f)
|
|
|
|
{
|
|
|
|
ff_thread_release_buffer(avctx, &f->tf);
|
|
|
|
av_buffer_unref(&f->hwaccel_priv_buf);
|
|
|
|
f->hwaccel_picture_private = NULL;
|
2020-10-16 16:34:31 +00:00
|
|
|
f->spatial_id = f->temporal_id = 0;
|
2020-09-09 03:39:55 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static int av1_frame_ref(AVCodecContext *avctx, AV1Frame *dst, const AV1Frame *src)
|
|
|
|
{
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
ret = ff_thread_ref_frame(&dst->tf, &src->tf);
|
|
|
|
if (ret < 0)
|
|
|
|
return ret;
|
|
|
|
|
|
|
|
if (src->hwaccel_picture_private) {
|
|
|
|
dst->hwaccel_priv_buf = av_buffer_ref(src->hwaccel_priv_buf);
|
|
|
|
if (!dst->hwaccel_priv_buf)
|
|
|
|
goto fail;
|
|
|
|
dst->hwaccel_picture_private = dst->hwaccel_priv_buf->data;
|
|
|
|
}
|
|
|
|
|
2020-10-16 16:34:31 +00:00
|
|
|
dst->spatial_id = src->spatial_id;
|
|
|
|
dst->temporal_id = src->temporal_id;
|
2020-09-09 03:39:55 +00:00
|
|
|
dst->loop_filter_delta_enabled = src->loop_filter_delta_enabled;
|
|
|
|
memcpy(dst->loop_filter_ref_deltas,
|
|
|
|
src->loop_filter_ref_deltas,
|
|
|
|
AV1_NUM_REF_FRAMES * sizeof(int8_t));
|
|
|
|
memcpy(dst->loop_filter_mode_deltas,
|
|
|
|
src->loop_filter_mode_deltas,
|
|
|
|
2 * sizeof(int8_t));
|
|
|
|
memcpy(dst->gm_type,
|
|
|
|
src->gm_type,
|
|
|
|
AV1_NUM_REF_FRAMES * sizeof(uint8_t));
|
|
|
|
memcpy(dst->gm_params,
|
|
|
|
src->gm_params,
|
|
|
|
AV1_NUM_REF_FRAMES * 6 * sizeof(int32_t));
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
fail:
|
|
|
|
av1_frame_unref(avctx, dst);
|
|
|
|
return AVERROR(ENOMEM);
|
|
|
|
}
|
|
|
|
|
|
|
|
static av_cold int av1_decode_free(AVCodecContext *avctx)
|
|
|
|
{
|
|
|
|
AV1DecContext *s = avctx->priv_data;
|
|
|
|
|
|
|
|
for (int i = 0; i < FF_ARRAY_ELEMS(s->ref); i++) {
|
2020-09-14 04:37:24 +00:00
|
|
|
av1_frame_unref(avctx, &s->ref[i]);
|
2020-09-09 03:39:55 +00:00
|
|
|
av_frame_free(&s->ref[i].tf.f);
|
|
|
|
}
|
2020-09-14 04:37:24 +00:00
|
|
|
av1_frame_unref(avctx, &s->cur_frame);
|
2020-09-09 03:39:55 +00:00
|
|
|
av_frame_free(&s->cur_frame.tf.f);
|
|
|
|
|
|
|
|
av_buffer_unref(&s->seq_ref);
|
|
|
|
av_buffer_unref(&s->header_ref);
|
|
|
|
av_freep(&s->tile_group_info);
|
|
|
|
|
|
|
|
ff_cbs_fragment_free(&s->current_obu);
|
|
|
|
ff_cbs_close(&s->cbc);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int set_context_with_sequence(AVCodecContext *avctx,
|
|
|
|
const AV1RawSequenceHeader *seq)
|
|
|
|
{
|
2020-09-25 14:20:41 +00:00
|
|
|
int width = seq->max_frame_width_minus_1 + 1;
|
|
|
|
int height = seq->max_frame_height_minus_1 + 1;
|
|
|
|
|
2020-09-09 03:39:55 +00:00
|
|
|
avctx->profile = seq->seq_profile;
|
|
|
|
avctx->level = seq->seq_level_idx[0];
|
|
|
|
|
|
|
|
avctx->color_range =
|
|
|
|
seq->color_config.color_range ? AVCOL_RANGE_JPEG : AVCOL_RANGE_MPEG;
|
|
|
|
avctx->color_primaries = seq->color_config.color_primaries;
|
|
|
|
avctx->colorspace = seq->color_config.color_primaries;
|
|
|
|
avctx->color_trc = seq->color_config.transfer_characteristics;
|
|
|
|
|
2020-09-09 21:42:00 +00:00
|
|
|
switch (seq->color_config.chroma_sample_position) {
|
|
|
|
case AV1_CSP_VERTICAL:
|
|
|
|
avctx->chroma_sample_location = AVCHROMA_LOC_LEFT;
|
|
|
|
break;
|
|
|
|
case AV1_CSP_COLOCATED:
|
|
|
|
avctx->chroma_sample_location = AVCHROMA_LOC_TOPLEFT;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
2020-09-25 14:20:41 +00:00
|
|
|
if (avctx->width != width || avctx->height != height) {
|
|
|
|
int ret = ff_set_dimensions(avctx, width, height);
|
|
|
|
if (ret < 0)
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
avctx->sample_aspect_ratio = (AVRational) { 1, 1 };
|
|
|
|
|
2020-09-09 03:39:55 +00:00
|
|
|
if (seq->timing_info.num_units_in_display_tick &&
|
|
|
|
seq->timing_info.time_scale) {
|
|
|
|
av_reduce(&avctx->framerate.den, &avctx->framerate.num,
|
|
|
|
seq->timing_info.num_units_in_display_tick,
|
|
|
|
seq->timing_info.time_scale,
|
|
|
|
INT_MAX);
|
|
|
|
if (seq->timing_info.equal_picture_interval)
|
|
|
|
avctx->ticks_per_frame = seq->timing_info.num_ticks_per_picture_minus_1 + 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int update_context_with_frame_header(AVCodecContext *avctx,
|
|
|
|
const AV1RawFrameHeader *header)
|
|
|
|
{
|
|
|
|
AVRational aspect_ratio;
|
|
|
|
int width = header->frame_width_minus_1 + 1;
|
|
|
|
int height = header->frame_height_minus_1 + 1;
|
|
|
|
int r_width = header->render_width_minus_1 + 1;
|
|
|
|
int r_height = header->render_height_minus_1 + 1;
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
if (avctx->width != width || avctx->height != height) {
|
|
|
|
ret = ff_set_dimensions(avctx, width, height);
|
|
|
|
if (ret < 0)
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
av_reduce(&aspect_ratio.num, &aspect_ratio.den,
|
|
|
|
(int64_t)height * r_width,
|
|
|
|
(int64_t)width * r_height,
|
|
|
|
INT_MAX);
|
|
|
|
|
2020-09-09 19:57:50 +00:00
|
|
|
if (av_cmp_q(avctx->sample_aspect_ratio, aspect_ratio)) {
|
2020-09-09 03:39:55 +00:00
|
|
|
ret = ff_set_sar(avctx, aspect_ratio);
|
|
|
|
if (ret < 0)
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static av_cold int av1_decode_init(AVCodecContext *avctx)
|
|
|
|
{
|
|
|
|
AV1DecContext *s = avctx->priv_data;
|
|
|
|
AV1RawSequenceHeader *seq;
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
s->avctx = avctx;
|
|
|
|
s->pix_fmt = AV_PIX_FMT_NONE;
|
|
|
|
|
|
|
|
for (int i = 0; i < FF_ARRAY_ELEMS(s->ref); i++) {
|
|
|
|
s->ref[i].tf.f = av_frame_alloc();
|
|
|
|
if (!s->ref[i].tf.f) {
|
|
|
|
av_log(avctx, AV_LOG_ERROR,
|
|
|
|
"Failed to allocate reference frame buffer %d.\n", i);
|
|
|
|
return AVERROR(ENOMEM);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
s->cur_frame.tf.f = av_frame_alloc();
|
|
|
|
if (!s->cur_frame.tf.f) {
|
|
|
|
av_log(avctx, AV_LOG_ERROR,
|
|
|
|
"Failed to allocate current frame buffer.\n");
|
|
|
|
return AVERROR(ENOMEM);
|
|
|
|
}
|
|
|
|
|
|
|
|
ret = ff_cbs_init(&s->cbc, AV_CODEC_ID_AV1, avctx);
|
|
|
|
if (ret < 0)
|
|
|
|
return ret;
|
|
|
|
|
|
|
|
if (avctx->extradata && avctx->extradata_size) {
|
|
|
|
ret = ff_cbs_read(s->cbc, &s->current_obu, avctx->extradata,
|
|
|
|
avctx->extradata_size);
|
|
|
|
if (ret < 0) {
|
|
|
|
av_log(avctx, AV_LOG_WARNING, "Failed to read extradata.\n");
|
2020-09-13 19:35:12 +00:00
|
|
|
return ret;
|
2020-09-09 03:39:55 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
seq = ((CodedBitstreamAV1Context *)(s->cbc->priv_data))->sequence_header;
|
|
|
|
if (!seq) {
|
|
|
|
av_log(avctx, AV_LOG_WARNING, "No sequence header available.\n");
|
|
|
|
goto end;
|
|
|
|
}
|
|
|
|
|
|
|
|
ret = set_context_with_sequence(avctx, seq);
|
|
|
|
if (ret < 0) {
|
|
|
|
av_log(avctx, AV_LOG_WARNING, "Failed to set decoder context.\n");
|
|
|
|
goto end;
|
|
|
|
}
|
|
|
|
|
|
|
|
end:
|
|
|
|
ff_cbs_fragment_reset(&s->current_obu);
|
|
|
|
}
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int av1_frame_alloc(AVCodecContext *avctx, AV1Frame *f)
|
|
|
|
{
|
|
|
|
AV1DecContext *s = avctx->priv_data;
|
|
|
|
AV1RawFrameHeader *header= s->raw_frame_header;
|
|
|
|
AVFrame *frame;
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
ret = update_context_with_frame_header(avctx, header);
|
|
|
|
if (ret < 0) {
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "Failed to update context with frame header\n");
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
if ((ret = ff_thread_get_buffer(avctx, &f->tf, AV_GET_BUFFER_FLAG_REF)) < 0)
|
|
|
|
return ret;
|
|
|
|
|
|
|
|
frame = f->tf.f;
|
|
|
|
frame->key_frame = header->frame_type == AV1_FRAME_KEY;
|
|
|
|
|
|
|
|
switch (header->frame_type) {
|
|
|
|
case AV1_FRAME_KEY:
|
|
|
|
case AV1_FRAME_INTRA_ONLY:
|
|
|
|
frame->pict_type = AV_PICTURE_TYPE_I;
|
|
|
|
break;
|
|
|
|
case AV1_FRAME_INTER:
|
|
|
|
frame->pict_type = AV_PICTURE_TYPE_P;
|
|
|
|
break;
|
|
|
|
case AV1_FRAME_SWITCH:
|
|
|
|
frame->pict_type = AV_PICTURE_TYPE_SP;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (avctx->hwaccel) {
|
|
|
|
const AVHWAccel *hwaccel = avctx->hwaccel;
|
|
|
|
if (hwaccel->frame_priv_data_size) {
|
|
|
|
f->hwaccel_priv_buf =
|
|
|
|
av_buffer_allocz(hwaccel->frame_priv_data_size);
|
|
|
|
if (!f->hwaccel_priv_buf)
|
|
|
|
goto fail;
|
|
|
|
f->hwaccel_picture_private = f->hwaccel_priv_buf->data;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
fail:
|
|
|
|
av1_frame_unref(avctx, f);
|
|
|
|
return AVERROR(ENOMEM);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int set_output_frame(AVCodecContext *avctx, AVFrame *frame,
|
|
|
|
const AVPacket *pkt, int *got_frame)
|
|
|
|
{
|
|
|
|
AV1DecContext *s = avctx->priv_data;
|
2020-09-09 22:14:01 +00:00
|
|
|
const AVFrame *srcframe = s->cur_frame.tf.f;
|
2020-09-09 03:39:55 +00:00
|
|
|
int ret;
|
|
|
|
|
|
|
|
ret = av_frame_ref(frame, srcframe);
|
|
|
|
if (ret < 0)
|
|
|
|
return ret;
|
|
|
|
|
|
|
|
frame->pts = pkt->pts;
|
|
|
|
frame->pkt_dts = pkt->dts;
|
|
|
|
frame->pkt_size = pkt->size;
|
|
|
|
|
|
|
|
*got_frame = 1;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int update_reference_list(AVCodecContext *avctx)
|
|
|
|
{
|
|
|
|
AV1DecContext *s = avctx->priv_data;
|
|
|
|
const AV1RawFrameHeader *header = s->raw_frame_header;
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
for (int i = 0; i < AV1_NUM_REF_FRAMES; i++) {
|
|
|
|
if (header->refresh_frame_flags & (1 << i)) {
|
|
|
|
if (s->ref[i].tf.f->buf[0])
|
|
|
|
av1_frame_unref(avctx, &s->ref[i]);
|
|
|
|
if ((ret = av1_frame_ref(avctx, &s->ref[i], &s->cur_frame)) < 0) {
|
|
|
|
av_log(avctx, AV_LOG_ERROR,
|
|
|
|
"Failed to update frame %d in reference list\n", i);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int get_current_frame(AVCodecContext *avctx)
|
|
|
|
{
|
|
|
|
AV1DecContext *s = avctx->priv_data;
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
if (s->cur_frame.tf.f->buf[0])
|
|
|
|
av1_frame_unref(avctx, &s->cur_frame);
|
|
|
|
|
|
|
|
ret = av1_frame_alloc(avctx, &s->cur_frame);
|
|
|
|
if (ret < 0) {
|
|
|
|
av_log(avctx, AV_LOG_ERROR,
|
|
|
|
"Failed to allocate space for current frame.\n");
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
ret = init_tile_data(s);
|
|
|
|
if (ret < 0) {
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "Failed to init tile data.\n");
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (s->raw_frame_header->primary_ref_frame == AV1_PRIMARY_REF_NONE)
|
|
|
|
setup_past_independence(&s->cur_frame);
|
|
|
|
else
|
|
|
|
load_previous_and_update(s);
|
|
|
|
|
|
|
|
global_motion_params(s);
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int av1_decode_frame(AVCodecContext *avctx, void *frame,
|
|
|
|
int *got_frame, AVPacket *pkt)
|
|
|
|
{
|
|
|
|
AV1DecContext *s = avctx->priv_data;
|
|
|
|
AV1RawTileGroup *raw_tile_group = NULL;
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
ret = ff_cbs_read_packet(s->cbc, &s->current_obu, pkt);
|
|
|
|
if (ret < 0) {
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "Failed to read packet.\n");
|
|
|
|
goto end;
|
|
|
|
}
|
|
|
|
av_log(avctx, AV_LOG_DEBUG, "Total obu for this frame:%d.\n",
|
|
|
|
s->current_obu.nb_units);
|
|
|
|
|
|
|
|
for (int i = 0; i < s->current_obu.nb_units; i++) {
|
|
|
|
CodedBitstreamUnit *unit = &s->current_obu.units[i];
|
|
|
|
AV1RawOBU *obu = unit->content;
|
2020-10-16 16:34:31 +00:00
|
|
|
const AV1RawOBUHeader *header = &obu->header;
|
2020-09-09 03:39:55 +00:00
|
|
|
av_log(avctx, AV_LOG_DEBUG, "Obu idx:%d, obu type:%d.\n", i, unit->type);
|
|
|
|
|
|
|
|
switch (unit->type) {
|
|
|
|
case AV1_OBU_SEQUENCE_HEADER:
|
|
|
|
av_buffer_unref(&s->seq_ref);
|
|
|
|
s->seq_ref = av_buffer_ref(unit->content_ref);
|
|
|
|
if (!s->seq_ref) {
|
|
|
|
ret = AVERROR(ENOMEM);
|
|
|
|
goto end;
|
|
|
|
}
|
|
|
|
|
|
|
|
s->raw_seq = &obu->obu.sequence_header;
|
|
|
|
|
|
|
|
ret = set_context_with_sequence(avctx, s->raw_seq);
|
|
|
|
if (ret < 0) {
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "Failed to set context.\n");
|
2020-10-04 13:21:59 +00:00
|
|
|
s->raw_seq = NULL;
|
2020-09-09 03:39:55 +00:00
|
|
|
goto end;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (s->pix_fmt == AV_PIX_FMT_NONE) {
|
|
|
|
ret = get_pixel_format(avctx);
|
|
|
|
if (ret < 0) {
|
|
|
|
av_log(avctx, AV_LOG_ERROR,
|
|
|
|
"Failed to get pixel format.\n");
|
2020-10-04 13:21:59 +00:00
|
|
|
s->raw_seq = NULL;
|
2020-09-09 03:39:55 +00:00
|
|
|
goto end;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (avctx->hwaccel && avctx->hwaccel->decode_params) {
|
|
|
|
ret = avctx->hwaccel->decode_params(avctx, unit->type, unit->data,
|
|
|
|
unit->data_size);
|
|
|
|
if (ret < 0) {
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "HW accel decode params fail.\n");
|
2020-10-04 13:21:59 +00:00
|
|
|
s->raw_seq = NULL;
|
2020-09-09 03:39:55 +00:00
|
|
|
goto end;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case AV1_OBU_REDUNDANT_FRAME_HEADER:
|
|
|
|
if (s->raw_frame_header)
|
|
|
|
break;
|
|
|
|
// fall-through
|
|
|
|
case AV1_OBU_FRAME:
|
|
|
|
case AV1_OBU_FRAME_HEADER:
|
2020-09-25 14:05:30 +00:00
|
|
|
if (!s->raw_seq) {
|
2020-09-09 03:39:55 +00:00
|
|
|
av_log(avctx, AV_LOG_ERROR, "Missing Sequence Header.\n");
|
|
|
|
ret = AVERROR_INVALIDDATA;
|
|
|
|
goto end;
|
|
|
|
}
|
|
|
|
|
|
|
|
av_buffer_unref(&s->header_ref);
|
|
|
|
s->header_ref = av_buffer_ref(unit->content_ref);
|
|
|
|
if (!s->header_ref) {
|
|
|
|
ret = AVERROR(ENOMEM);
|
|
|
|
goto end;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (unit->type == AV1_OBU_FRAME)
|
|
|
|
s->raw_frame_header = &obu->obu.frame.header;
|
|
|
|
else
|
|
|
|
s->raw_frame_header = &obu->obu.frame_header;
|
|
|
|
|
|
|
|
if (s->raw_frame_header->show_existing_frame) {
|
2020-09-09 22:14:01 +00:00
|
|
|
if (s->cur_frame.tf.f->buf[0])
|
|
|
|
av1_frame_unref(avctx, &s->cur_frame);
|
|
|
|
|
|
|
|
ret = av1_frame_ref(avctx, &s->cur_frame,
|
|
|
|
&s->ref[s->raw_frame_header->frame_to_show_map_idx]);
|
|
|
|
if (ret < 0) {
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "Failed to get reference frame.\n");
|
|
|
|
goto end;
|
|
|
|
}
|
|
|
|
|
|
|
|
ret = update_reference_list(avctx);
|
|
|
|
if (ret < 0) {
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "Failed to update reference list.\n");
|
|
|
|
goto end;
|
|
|
|
}
|
|
|
|
|
2020-09-09 03:39:55 +00:00
|
|
|
ret = set_output_frame(avctx, frame, pkt, got_frame);
|
|
|
|
if (ret < 0)
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "Set output frame error.\n");
|
|
|
|
|
|
|
|
s->raw_frame_header = NULL;
|
|
|
|
|
|
|
|
goto end;
|
|
|
|
}
|
|
|
|
|
|
|
|
ret = get_current_frame(avctx);
|
|
|
|
if (ret < 0) {
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "Get current frame error\n");
|
|
|
|
goto end;
|
|
|
|
}
|
|
|
|
|
2020-10-16 16:34:31 +00:00
|
|
|
s->cur_frame.spatial_id = header->spatial_id;
|
|
|
|
s->cur_frame.temporal_id = header->temporal_id;
|
|
|
|
|
2020-09-09 03:39:55 +00:00
|
|
|
if (avctx->hwaccel) {
|
|
|
|
ret = avctx->hwaccel->start_frame(avctx, unit->data,
|
|
|
|
unit->data_size);
|
|
|
|
if (ret < 0) {
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "HW accel start frame fail.\n");
|
|
|
|
goto end;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (unit->type != AV1_OBU_FRAME)
|
|
|
|
break;
|
|
|
|
// fall-through
|
|
|
|
case AV1_OBU_TILE_GROUP:
|
|
|
|
if (!s->raw_frame_header) {
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "Missing Frame Header.\n");
|
|
|
|
ret = AVERROR_INVALIDDATA;
|
|
|
|
goto end;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (unit->type == AV1_OBU_FRAME)
|
|
|
|
raw_tile_group = &obu->obu.frame.tile_group;
|
|
|
|
else
|
|
|
|
raw_tile_group = &obu->obu.tile_group;
|
|
|
|
|
2020-09-17 03:09:19 +00:00
|
|
|
ret = get_tiles_info(avctx, raw_tile_group);
|
|
|
|
if (ret < 0)
|
|
|
|
goto end;
|
2020-09-09 03:39:55 +00:00
|
|
|
|
|
|
|
if (avctx->hwaccel) {
|
|
|
|
ret = avctx->hwaccel->decode_slice(avctx,
|
|
|
|
raw_tile_group->tile_data.data,
|
|
|
|
raw_tile_group->tile_data.data_size);
|
|
|
|
if (ret < 0) {
|
|
|
|
av_log(avctx, AV_LOG_ERROR,
|
|
|
|
"HW accel decode slice fail.\n");
|
|
|
|
goto end;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case AV1_OBU_TILE_LIST:
|
|
|
|
case AV1_OBU_TEMPORAL_DELIMITER:
|
|
|
|
case AV1_OBU_PADDING:
|
|
|
|
case AV1_OBU_METADATA:
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
av_log(avctx, AV_LOG_DEBUG,
|
|
|
|
"Unknown obu type: %d (%"SIZE_SPECIFIER" bits).\n",
|
|
|
|
unit->type, unit->data_size);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (raw_tile_group && (s->tile_num == raw_tile_group->tg_end + 1)) {
|
|
|
|
if (avctx->hwaccel) {
|
|
|
|
ret = avctx->hwaccel->end_frame(avctx);
|
|
|
|
if (ret < 0) {
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "HW accel end frame fail.\n");
|
|
|
|
goto end;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
ret = update_reference_list(avctx);
|
|
|
|
if (ret < 0) {
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "Failed to update reference list.\n");
|
|
|
|
goto end;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (s->raw_frame_header->show_frame) {
|
|
|
|
ret = set_output_frame(avctx, frame, pkt, got_frame);
|
|
|
|
if (ret < 0) {
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "Set output frame error\n");
|
|
|
|
goto end;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
raw_tile_group = NULL;
|
|
|
|
s->raw_frame_header = NULL;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
end:
|
|
|
|
ff_cbs_fragment_reset(&s->current_obu);
|
2020-10-04 13:21:59 +00:00
|
|
|
if (ret < 0)
|
|
|
|
s->raw_frame_header = NULL;
|
2020-09-09 03:39:55 +00:00
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void av1_decode_flush(AVCodecContext *avctx)
|
|
|
|
{
|
|
|
|
AV1DecContext *s = avctx->priv_data;
|
|
|
|
|
|
|
|
for (int i = 0; i < FF_ARRAY_ELEMS(s->ref); i++)
|
|
|
|
av1_frame_unref(avctx, &s->ref[i]);
|
|
|
|
|
|
|
|
av1_frame_unref(avctx, &s->cur_frame);
|
|
|
|
s->raw_frame_header = NULL;
|
|
|
|
s->raw_seq = NULL;
|
2020-09-24 21:54:14 +00:00
|
|
|
|
|
|
|
ff_cbs_flush(s->cbc);
|
2020-09-09 03:39:55 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
AVCodec ff_av1_decoder = {
|
|
|
|
.name = "av1",
|
|
|
|
.long_name = NULL_IF_CONFIG_SMALL("Alliance for Open Media AV1"),
|
|
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
|
|
.id = AV_CODEC_ID_AV1,
|
|
|
|
.priv_data_size = sizeof(AV1DecContext),
|
|
|
|
.init = av1_decode_init,
|
|
|
|
.close = av1_decode_free,
|
|
|
|
.decode = av1_decode_frame,
|
2020-10-06 14:20:24 +00:00
|
|
|
.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_AVOID_PROBING,
|
2020-09-09 03:39:55 +00:00
|
|
|
.caps_internal = FF_CODEC_CAP_INIT_THREADSAFE |
|
|
|
|
FF_CODEC_CAP_INIT_CLEANUP |
|
|
|
|
FF_CODEC_CAP_SETS_PKT_DTS,
|
|
|
|
.flush = av1_decode_flush,
|
|
|
|
.profiles = NULL_IF_CONFIG_SMALL(ff_av1_profiles),
|
|
|
|
.hw_configs = (const AVCodecHWConfigInternal * []) {
|
|
|
|
NULL
|
|
|
|
},
|
|
|
|
};
|