mirror of
https://git.videolan.org/git/ffmpeg.git
synced 2024-09-04 15:28:19 +02:00
![James Almer](/assets/img/avatar_default.png)
Cosmetic change in preparation for the following patches. Signed-off-by: James Almer <jamrial@gmail.com>
2054 lines
67 KiB
C
2054 lines
67 KiB
C
/*
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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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static int FUNC(obu_header)(CodedBitstreamContext *ctx, RWContext *rw,
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AV1RawOBUHeader *current)
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{
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CodedBitstreamAV1Context *priv = ctx->priv_data;
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int err;
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HEADER("OBU header");
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fc(1, obu_forbidden_bit, 0, 0);
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fc(4, obu_type, 0, AV1_OBU_PADDING);
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flag(obu_extension_flag);
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flag(obu_has_size_field);
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fc(1, obu_reserved_1bit, 0, 0);
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if (current->obu_extension_flag) {
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fb(3, temporal_id);
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fb(2, spatial_id);
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fc(3, extension_header_reserved_3bits, 0, 0);
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} else {
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infer(temporal_id, 0);
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infer(spatial_id, 0);
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}
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priv->temporal_id = current->temporal_id;
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priv->spatial_id = current->spatial_id;
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return 0;
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}
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static int FUNC(trailing_bits)(CodedBitstreamContext *ctx, RWContext *rw, int nb_bits)
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{
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int err;
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av_assert0(nb_bits > 0);
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fixed(1, trailing_one_bit, 1);
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--nb_bits;
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while (nb_bits > 0) {
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fixed(1, trailing_zero_bit, 0);
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--nb_bits;
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}
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return 0;
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}
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static int FUNC(byte_alignment)(CodedBitstreamContext *ctx, RWContext *rw)
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{
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int err;
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while (byte_alignment(rw) != 0)
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fixed(1, zero_bit, 0);
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return 0;
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}
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static int FUNC(color_config)(CodedBitstreamContext *ctx, RWContext *rw,
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AV1RawColorConfig *current, int seq_profile)
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{
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CodedBitstreamAV1Context *priv = ctx->priv_data;
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int err;
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flag(high_bitdepth);
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if (seq_profile == FF_PROFILE_AV1_PROFESSIONAL &&
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current->high_bitdepth) {
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flag(twelve_bit);
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priv->bit_depth = current->twelve_bit ? 12 : 10;
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} else {
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priv->bit_depth = current->high_bitdepth ? 10 : 8;
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}
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if (seq_profile == FF_PROFILE_AV1_HIGH)
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infer(mono_chrome, 0);
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else
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flag(mono_chrome);
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priv->num_planes = current->mono_chrome ? 1 : 3;
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flag(color_description_present_flag);
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if (current->color_description_present_flag) {
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fb(8, color_primaries);
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fb(8, transfer_characteristics);
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fb(8, matrix_coefficients);
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} else {
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infer(color_primaries, AVCOL_PRI_UNSPECIFIED);
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infer(transfer_characteristics, AVCOL_TRC_UNSPECIFIED);
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infer(matrix_coefficients, AVCOL_SPC_UNSPECIFIED);
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}
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if (current->mono_chrome) {
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flag(color_range);
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infer(subsampling_x, 1);
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infer(subsampling_y, 1);
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infer(chroma_sample_position, AV1_CSP_UNKNOWN);
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infer(separate_uv_delta_q, 0);
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} else if (current->color_primaries == AVCOL_PRI_BT709 &&
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current->transfer_characteristics == AVCOL_TRC_IEC61966_2_1 &&
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current->matrix_coefficients == AVCOL_SPC_RGB) {
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infer(color_range, 1);
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infer(subsampling_x, 0);
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infer(subsampling_y, 0);
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flag(separate_uv_delta_q);
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} else {
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flag(color_range);
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if (seq_profile == FF_PROFILE_AV1_MAIN) {
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infer(subsampling_x, 1);
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infer(subsampling_y, 1);
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} else if (seq_profile == FF_PROFILE_AV1_HIGH) {
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infer(subsampling_x, 0);
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infer(subsampling_y, 0);
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} else {
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if (priv->bit_depth == 12) {
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fb(1, subsampling_x);
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if (current->subsampling_x)
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fb(1, subsampling_y);
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else
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infer(subsampling_y, 0);
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} else {
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infer(subsampling_x, 1);
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infer(subsampling_y, 0);
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}
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}
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if (current->subsampling_x && current->subsampling_y) {
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fc(2, chroma_sample_position, AV1_CSP_UNKNOWN,
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AV1_CSP_COLOCATED);
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}
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flag(separate_uv_delta_q);
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}
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return 0;
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}
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static int FUNC(timing_info)(CodedBitstreamContext *ctx, RWContext *rw,
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AV1RawTimingInfo *current)
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{
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int err;
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fc(32, num_units_in_display_tick, 1, MAX_UINT_BITS(32));
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fc(32, time_scale, 1, MAX_UINT_BITS(32));
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flag(equal_picture_interval);
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if (current->equal_picture_interval)
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uvlc(num_ticks_per_picture_minus_1, 0, MAX_UINT_BITS(32) - 1);
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return 0;
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}
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static int FUNC(decoder_model_info)(CodedBitstreamContext *ctx, RWContext *rw,
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AV1RawDecoderModelInfo *current)
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{
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int err;
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fb(5, buffer_delay_length_minus_1);
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fb(32, num_units_in_decoding_tick);
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fb(5, buffer_removal_time_length_minus_1);
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fb(5, frame_presentation_time_length_minus_1);
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return 0;
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}
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static int FUNC(sequence_header_obu)(CodedBitstreamContext *ctx, RWContext *rw,
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AV1RawSequenceHeader *current)
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{
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int i, err;
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HEADER("Sequence Header");
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fc(3, seq_profile, FF_PROFILE_AV1_MAIN,
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FF_PROFILE_AV1_PROFESSIONAL);
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flag(still_picture);
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flag(reduced_still_picture_header);
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if (current->reduced_still_picture_header) {
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infer(timing_info_present_flag, 0);
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infer(decoder_model_info_present_flag, 0);
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infer(initial_display_delay_present_flag, 0);
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infer(operating_points_cnt_minus_1, 0);
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infer(operating_point_idc[0], 0);
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fb(5, seq_level_idx[0]);
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infer(seq_tier[0], 0);
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infer(decoder_model_present_for_this_op[0], 0);
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infer(initial_display_delay_present_for_this_op[0], 0);
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} else {
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flag(timing_info_present_flag);
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if (current->timing_info_present_flag) {
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CHECK(FUNC(timing_info)(ctx, rw, ¤t->timing_info));
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flag(decoder_model_info_present_flag);
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if (current->decoder_model_info_present_flag) {
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CHECK(FUNC(decoder_model_info)
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(ctx, rw, ¤t->decoder_model_info));
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}
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} else {
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infer(decoder_model_info_present_flag, 0);
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}
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flag(initial_display_delay_present_flag);
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fb(5, operating_points_cnt_minus_1);
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for (i = 0; i <= current->operating_points_cnt_minus_1; i++) {
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fbs(12, operating_point_idc[i], 1, i);
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fbs(5, seq_level_idx[i], 1, i);
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if (current->seq_level_idx[i] > 7)
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flags(seq_tier[i], 1, i);
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else
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infer(seq_tier[i], 0);
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if (current->decoder_model_info_present_flag) {
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flags(decoder_model_present_for_this_op[i], 1, i);
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if (current->decoder_model_present_for_this_op[i]) {
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int n = current->decoder_model_info.buffer_delay_length_minus_1 + 1;
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fbs(n, decoder_buffer_delay[i], 1, i);
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fbs(n, encoder_buffer_delay[i], 1, i);
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flags(low_delay_mode_flag[i], 1, i);
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}
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} else {
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infer(decoder_model_present_for_this_op[i], 0);
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}
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if (current->initial_display_delay_present_flag) {
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flags(initial_display_delay_present_for_this_op[i], 1, i);
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if (current->initial_display_delay_present_for_this_op[i])
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fbs(4, initial_display_delay_minus_1[i], 1, i);
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}
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}
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}
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fb(4, frame_width_bits_minus_1);
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fb(4, frame_height_bits_minus_1);
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fb(current->frame_width_bits_minus_1 + 1, max_frame_width_minus_1);
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fb(current->frame_height_bits_minus_1 + 1, max_frame_height_minus_1);
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if (current->reduced_still_picture_header)
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infer(frame_id_numbers_present_flag, 0);
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else
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flag(frame_id_numbers_present_flag);
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if (current->frame_id_numbers_present_flag) {
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fb(4, delta_frame_id_length_minus_2);
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fb(3, additional_frame_id_length_minus_1);
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}
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flag(use_128x128_superblock);
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flag(enable_filter_intra);
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flag(enable_intra_edge_filter);
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if (current->reduced_still_picture_header) {
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infer(enable_interintra_compound, 0);
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infer(enable_masked_compound, 0);
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infer(enable_warped_motion, 0);
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infer(enable_dual_filter, 0);
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infer(enable_order_hint, 0);
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infer(enable_jnt_comp, 0);
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infer(enable_ref_frame_mvs, 0);
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infer(seq_force_screen_content_tools,
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AV1_SELECT_SCREEN_CONTENT_TOOLS);
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infer(seq_force_integer_mv,
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AV1_SELECT_INTEGER_MV);
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} else {
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flag(enable_interintra_compound);
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flag(enable_masked_compound);
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flag(enable_warped_motion);
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flag(enable_dual_filter);
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flag(enable_order_hint);
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if (current->enable_order_hint) {
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flag(enable_jnt_comp);
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flag(enable_ref_frame_mvs);
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} else {
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infer(enable_jnt_comp, 0);
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infer(enable_ref_frame_mvs, 0);
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}
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flag(seq_choose_screen_content_tools);
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if (current->seq_choose_screen_content_tools)
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infer(seq_force_screen_content_tools,
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AV1_SELECT_SCREEN_CONTENT_TOOLS);
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else
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fb(1, seq_force_screen_content_tools);
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if (current->seq_force_screen_content_tools > 0) {
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flag(seq_choose_integer_mv);
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if (current->seq_choose_integer_mv)
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infer(seq_force_integer_mv,
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AV1_SELECT_INTEGER_MV);
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else
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fb(1, seq_force_integer_mv);
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} else {
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infer(seq_force_integer_mv, AV1_SELECT_INTEGER_MV);
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}
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if (current->enable_order_hint)
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fb(3, order_hint_bits_minus_1);
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}
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flag(enable_superres);
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flag(enable_cdef);
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flag(enable_restoration);
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CHECK(FUNC(color_config)(ctx, rw, ¤t->color_config,
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current->seq_profile));
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flag(film_grain_params_present);
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return 0;
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}
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static int FUNC(temporal_delimiter_obu)(CodedBitstreamContext *ctx, RWContext *rw)
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{
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CodedBitstreamAV1Context *priv = ctx->priv_data;
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HEADER("Temporal Delimiter");
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priv->seen_frame_header = 0;
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return 0;
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}
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static int FUNC(set_frame_refs)(CodedBitstreamContext *ctx, RWContext *rw,
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AV1RawFrameHeader *current)
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{
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CodedBitstreamAV1Context *priv = ctx->priv_data;
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const AV1RawSequenceHeader *seq = priv->sequence_header;
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static const uint8_t ref_frame_list[AV1_NUM_REF_FRAMES - 2] = {
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AV1_REF_FRAME_LAST2, AV1_REF_FRAME_LAST3, AV1_REF_FRAME_BWDREF,
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AV1_REF_FRAME_ALTREF2, AV1_REF_FRAME_ALTREF
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};
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int8_t ref_frame_idx[AV1_REFS_PER_FRAME], used_frame[AV1_NUM_REF_FRAMES];
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int8_t shifted_order_hints[AV1_NUM_REF_FRAMES];
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int cur_frame_hint, latest_order_hint, earliest_order_hint, ref;
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int i, j;
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for (i = 0; i < AV1_REFS_PER_FRAME; i++)
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ref_frame_idx[i] = -1;
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ref_frame_idx[AV1_REF_FRAME_LAST - AV1_REF_FRAME_LAST] = current->last_frame_idx;
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ref_frame_idx[AV1_REF_FRAME_GOLDEN - AV1_REF_FRAME_LAST] = current->golden_frame_idx;
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for (i = 0; i < AV1_NUM_REF_FRAMES; i++)
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used_frame[i] = 0;
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used_frame[current->last_frame_idx] = 1;
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used_frame[current->golden_frame_idx] = 1;
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cur_frame_hint = 1 << (seq->order_hint_bits_minus_1);
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for (i = 0; i < AV1_NUM_REF_FRAMES; i++)
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shifted_order_hints[i] = cur_frame_hint +
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cbs_av1_get_relative_dist(seq, priv->ref[i].order_hint,
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priv->order_hint);
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latest_order_hint = shifted_order_hints[current->last_frame_idx];
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earliest_order_hint = shifted_order_hints[current->golden_frame_idx];
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ref = -1;
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for (i = 0; i < AV1_NUM_REF_FRAMES; i++) {
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int hint = shifted_order_hints[i];
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if (!used_frame[i] && hint >= cur_frame_hint &&
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(ref < 0 || hint >= latest_order_hint)) {
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ref = i;
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latest_order_hint = hint;
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}
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}
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if (ref >= 0) {
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ref_frame_idx[AV1_REF_FRAME_ALTREF - AV1_REF_FRAME_LAST] = ref;
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used_frame[ref] = 1;
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}
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ref = -1;
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for (i = 0; i < AV1_NUM_REF_FRAMES; i++) {
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int hint = shifted_order_hints[i];
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if (!used_frame[i] && hint >= cur_frame_hint &&
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(ref < 0 || hint < earliest_order_hint)) {
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ref = i;
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earliest_order_hint = hint;
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}
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}
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if (ref >= 0) {
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ref_frame_idx[AV1_REF_FRAME_BWDREF - AV1_REF_FRAME_LAST] = ref;
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used_frame[ref] = 1;
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}
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ref = -1;
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for (i = 0; i < AV1_NUM_REF_FRAMES; i++) {
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int hint = shifted_order_hints[i];
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if (!used_frame[i] && hint >= cur_frame_hint &&
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(ref < 0 || hint < earliest_order_hint)) {
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ref = i;
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earliest_order_hint = hint;
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}
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}
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if (ref >= 0) {
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ref_frame_idx[AV1_REF_FRAME_ALTREF2 - AV1_REF_FRAME_LAST] = ref;
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used_frame[ref] = 1;
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}
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for (i = 0; i < AV1_REFS_PER_FRAME - 2; i++) {
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int ref_frame = ref_frame_list[i];
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if (ref_frame_idx[ref_frame - AV1_REF_FRAME_LAST] < 0 ) {
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ref = -1;
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for (j = 0; j < AV1_NUM_REF_FRAMES; j++) {
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int hint = shifted_order_hints[j];
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if (!used_frame[j] && hint < cur_frame_hint &&
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(ref < 0 || hint >= latest_order_hint)) {
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ref = j;
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latest_order_hint = hint;
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}
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}
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if (ref >= 0) {
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ref_frame_idx[ref_frame - AV1_REF_FRAME_LAST] = ref;
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used_frame[ref] = 1;
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}
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}
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}
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ref = -1;
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for (i = 0; i < AV1_NUM_REF_FRAMES; i++) {
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int hint = shifted_order_hints[i];
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if (ref < 0 || hint < earliest_order_hint) {
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ref = i;
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earliest_order_hint = hint;
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}
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}
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for (i = 0; i < AV1_REFS_PER_FRAME; i++) {
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if (ref_frame_idx[i] < 0)
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ref_frame_idx[i] = ref;
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infer(ref_frame_idx[i], ref_frame_idx[i]);
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}
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return 0;
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}
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static int FUNC(superres_params)(CodedBitstreamContext *ctx, RWContext *rw,
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AV1RawFrameHeader *current)
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{
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CodedBitstreamAV1Context *priv = ctx->priv_data;
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const AV1RawSequenceHeader *seq = priv->sequence_header;
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int denom, err;
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if (seq->enable_superres)
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flag(use_superres);
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else
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infer(use_superres, 0);
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if (current->use_superres) {
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fb(3, coded_denom);
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denom = current->coded_denom + AV1_SUPERRES_DENOM_MIN;
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} else {
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denom = AV1_SUPERRES_NUM;
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}
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priv->upscaled_width = priv->frame_width;
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priv->frame_width = (priv->upscaled_width * AV1_SUPERRES_NUM +
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denom / 2) / denom;
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return 0;
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}
|
|
|
|
static int FUNC(frame_size)(CodedBitstreamContext *ctx, RWContext *rw,
|
|
AV1RawFrameHeader *current)
|
|
{
|
|
CodedBitstreamAV1Context *priv = ctx->priv_data;
|
|
const AV1RawSequenceHeader *seq = priv->sequence_header;
|
|
int err;
|
|
|
|
if (current->frame_size_override_flag) {
|
|
fb(seq->frame_width_bits_minus_1 + 1, frame_width_minus_1);
|
|
fb(seq->frame_height_bits_minus_1 + 1, frame_height_minus_1);
|
|
} else {
|
|
infer(frame_width_minus_1, seq->max_frame_width_minus_1);
|
|
infer(frame_height_minus_1, seq->max_frame_height_minus_1);
|
|
}
|
|
|
|
priv->frame_width = current->frame_width_minus_1 + 1;
|
|
priv->frame_height = current->frame_height_minus_1 + 1;
|
|
|
|
CHECK(FUNC(superres_params)(ctx, rw, current));
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int FUNC(render_size)(CodedBitstreamContext *ctx, RWContext *rw,
|
|
AV1RawFrameHeader *current)
|
|
{
|
|
CodedBitstreamAV1Context *priv = ctx->priv_data;
|
|
int err;
|
|
|
|
flag(render_and_frame_size_different);
|
|
|
|
if (current->render_and_frame_size_different) {
|
|
fb(16, render_width_minus_1);
|
|
fb(16, render_height_minus_1);
|
|
} else {
|
|
infer(render_width_minus_1, current->frame_width_minus_1);
|
|
infer(render_height_minus_1, current->frame_height_minus_1);
|
|
}
|
|
|
|
priv->render_width = current->render_width_minus_1 + 1;
|
|
priv->render_height = current->render_height_minus_1 + 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int FUNC(frame_size_with_refs)(CodedBitstreamContext *ctx, RWContext *rw,
|
|
AV1RawFrameHeader *current)
|
|
{
|
|
CodedBitstreamAV1Context *priv = ctx->priv_data;
|
|
int i, err;
|
|
|
|
for (i = 0; i < AV1_REFS_PER_FRAME; i++) {
|
|
flags(found_ref[i], 1, i);
|
|
if (current->found_ref[i]) {
|
|
AV1ReferenceFrameState *ref =
|
|
&priv->ref[current->ref_frame_idx[i]];
|
|
|
|
if (!ref->valid) {
|
|
av_log(ctx->log_ctx, AV_LOG_ERROR,
|
|
"Missing reference frame needed for frame size "
|
|
"(ref = %d, ref_frame_idx = %d).\n",
|
|
i, current->ref_frame_idx[i]);
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
|
|
infer(frame_width_minus_1, ref->upscaled_width - 1);
|
|
infer(frame_height_minus_1, ref->frame_height - 1);
|
|
infer(render_width_minus_1, ref->render_width - 1);
|
|
infer(render_height_minus_1, ref->render_height - 1);
|
|
|
|
priv->upscaled_width = ref->upscaled_width;
|
|
priv->frame_width = priv->upscaled_width;
|
|
priv->frame_height = ref->frame_height;
|
|
priv->render_width = ref->render_width;
|
|
priv->render_height = ref->render_height;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (i >= AV1_REFS_PER_FRAME) {
|
|
CHECK(FUNC(frame_size)(ctx, rw, current));
|
|
CHECK(FUNC(render_size)(ctx, rw, current));
|
|
} else {
|
|
CHECK(FUNC(superres_params)(ctx, rw, current));
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int FUNC(interpolation_filter)(CodedBitstreamContext *ctx, RWContext *rw,
|
|
AV1RawFrameHeader *current)
|
|
{
|
|
int err;
|
|
|
|
flag(is_filter_switchable);
|
|
if (current->is_filter_switchable)
|
|
infer(interpolation_filter,
|
|
AV1_INTERPOLATION_FILTER_SWITCHABLE);
|
|
else
|
|
fb(2, interpolation_filter);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int FUNC(tile_info)(CodedBitstreamContext *ctx, RWContext *rw,
|
|
AV1RawFrameHeader *current)
|
|
{
|
|
CodedBitstreamAV1Context *priv = ctx->priv_data;
|
|
const AV1RawSequenceHeader *seq = priv->sequence_header;
|
|
int mi_cols, mi_rows, sb_cols, sb_rows, sb_shift, sb_size;
|
|
int max_tile_width_sb, max_tile_height_sb, max_tile_area_sb;
|
|
int min_log2_tile_cols, max_log2_tile_cols, max_log2_tile_rows;
|
|
int min_log2_tiles, min_log2_tile_rows;
|
|
int i, err;
|
|
|
|
mi_cols = 2 * ((priv->frame_width + 7) >> 3);
|
|
mi_rows = 2 * ((priv->frame_height + 7) >> 3);
|
|
|
|
sb_cols = seq->use_128x128_superblock ? ((mi_cols + 31) >> 5)
|
|
: ((mi_cols + 15) >> 4);
|
|
sb_rows = seq->use_128x128_superblock ? ((mi_rows + 31) >> 5)
|
|
: ((mi_rows + 15) >> 4);
|
|
|
|
sb_shift = seq->use_128x128_superblock ? 5 : 4;
|
|
sb_size = sb_shift + 2;
|
|
|
|
max_tile_width_sb = AV1_MAX_TILE_WIDTH >> sb_size;
|
|
max_tile_area_sb = AV1_MAX_TILE_AREA >> (2 * sb_size);
|
|
|
|
min_log2_tile_cols = cbs_av1_tile_log2(max_tile_width_sb, sb_cols);
|
|
max_log2_tile_cols = cbs_av1_tile_log2(1, FFMIN(sb_cols, AV1_MAX_TILE_COLS));
|
|
max_log2_tile_rows = cbs_av1_tile_log2(1, FFMIN(sb_rows, AV1_MAX_TILE_ROWS));
|
|
min_log2_tiles = FFMAX(min_log2_tile_cols,
|
|
cbs_av1_tile_log2(max_tile_area_sb, sb_rows * sb_cols));
|
|
|
|
flag(uniform_tile_spacing_flag);
|
|
|
|
if (current->uniform_tile_spacing_flag) {
|
|
int tile_width_sb, tile_height_sb;
|
|
|
|
increment(tile_cols_log2, min_log2_tile_cols, max_log2_tile_cols);
|
|
|
|
tile_width_sb = (sb_cols + (1 << current->tile_cols_log2) - 1) >>
|
|
current->tile_cols_log2;
|
|
current->tile_cols = (sb_cols + tile_width_sb - 1) / tile_width_sb;
|
|
|
|
min_log2_tile_rows = FFMAX(min_log2_tiles - current->tile_cols_log2, 0);
|
|
|
|
increment(tile_rows_log2, min_log2_tile_rows, max_log2_tile_rows);
|
|
|
|
tile_height_sb = (sb_rows + (1 << current->tile_rows_log2) - 1) >>
|
|
current->tile_rows_log2;
|
|
current->tile_rows = (sb_rows + tile_height_sb - 1) / tile_height_sb;
|
|
|
|
for (i = 0; i < current->tile_cols - 1; i++)
|
|
infer(width_in_sbs_minus_1[i], tile_width_sb - 1);
|
|
infer(width_in_sbs_minus_1[i],
|
|
sb_cols - (current->tile_cols - 1) * tile_width_sb - 1);
|
|
for (i = 0; i < current->tile_rows - 1; i++)
|
|
infer(height_in_sbs_minus_1[i], tile_height_sb - 1);
|
|
infer(height_in_sbs_minus_1[i],
|
|
sb_rows - (current->tile_rows - 1) * tile_height_sb - 1);
|
|
|
|
} else {
|
|
int widest_tile_sb, start_sb, size_sb, max_width, max_height;
|
|
|
|
widest_tile_sb = 0;
|
|
|
|
start_sb = 0;
|
|
for (i = 0; start_sb < sb_cols && i < AV1_MAX_TILE_COLS; i++) {
|
|
max_width = FFMIN(sb_cols - start_sb, max_tile_width_sb);
|
|
ns(max_width, width_in_sbs_minus_1[i], 1, i);
|
|
size_sb = current->width_in_sbs_minus_1[i] + 1;
|
|
widest_tile_sb = FFMAX(size_sb, widest_tile_sb);
|
|
start_sb += size_sb;
|
|
}
|
|
current->tile_cols_log2 = cbs_av1_tile_log2(1, i);
|
|
current->tile_cols = i;
|
|
|
|
if (min_log2_tiles > 0)
|
|
max_tile_area_sb = (sb_rows * sb_cols) >> (min_log2_tiles + 1);
|
|
else
|
|
max_tile_area_sb = sb_rows * sb_cols;
|
|
max_tile_height_sb = FFMAX(max_tile_area_sb / widest_tile_sb, 1);
|
|
|
|
start_sb = 0;
|
|
for (i = 0; start_sb < sb_rows && i < AV1_MAX_TILE_ROWS; i++) {
|
|
max_height = FFMIN(sb_rows - start_sb, max_tile_height_sb);
|
|
ns(max_height, height_in_sbs_minus_1[i], 1, i);
|
|
size_sb = current->height_in_sbs_minus_1[i] + 1;
|
|
start_sb += size_sb;
|
|
}
|
|
current->tile_rows_log2 = cbs_av1_tile_log2(1, i);
|
|
current->tile_rows = i;
|
|
}
|
|
|
|
if (current->tile_cols_log2 > 0 ||
|
|
current->tile_rows_log2 > 0) {
|
|
fb(current->tile_cols_log2 + current->tile_rows_log2,
|
|
context_update_tile_id);
|
|
fb(2, tile_size_bytes_minus1);
|
|
} else {
|
|
infer(context_update_tile_id, 0);
|
|
}
|
|
|
|
priv->tile_cols = current->tile_cols;
|
|
priv->tile_rows = current->tile_rows;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int FUNC(quantization_params)(CodedBitstreamContext *ctx, RWContext *rw,
|
|
AV1RawFrameHeader *current)
|
|
{
|
|
CodedBitstreamAV1Context *priv = ctx->priv_data;
|
|
const AV1RawSequenceHeader *seq = priv->sequence_header;
|
|
int err;
|
|
|
|
fb(8, base_q_idx);
|
|
|
|
delta_q(delta_q_y_dc);
|
|
|
|
if (priv->num_planes > 1) {
|
|
if (seq->color_config.separate_uv_delta_q)
|
|
flag(diff_uv_delta);
|
|
else
|
|
infer(diff_uv_delta, 0);
|
|
|
|
delta_q(delta_q_u_dc);
|
|
delta_q(delta_q_u_ac);
|
|
|
|
if (current->diff_uv_delta) {
|
|
delta_q(delta_q_v_dc);
|
|
delta_q(delta_q_v_ac);
|
|
} else {
|
|
infer(delta_q_v_dc, current->delta_q_u_dc);
|
|
infer(delta_q_v_ac, current->delta_q_u_ac);
|
|
}
|
|
} else {
|
|
infer(delta_q_u_dc, 0);
|
|
infer(delta_q_u_ac, 0);
|
|
infer(delta_q_v_dc, 0);
|
|
infer(delta_q_v_ac, 0);
|
|
}
|
|
|
|
flag(using_qmatrix);
|
|
if (current->using_qmatrix) {
|
|
fb(4, qm_y);
|
|
fb(4, qm_u);
|
|
if (seq->color_config.separate_uv_delta_q)
|
|
fb(4, qm_v);
|
|
else
|
|
infer(qm_v, current->qm_u);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int FUNC(segmentation_params)(CodedBitstreamContext *ctx, RWContext *rw,
|
|
AV1RawFrameHeader *current)
|
|
{
|
|
CodedBitstreamAV1Context *priv = ctx->priv_data;
|
|
static const uint8_t bits[AV1_SEG_LVL_MAX] = { 8, 6, 6, 6, 6, 3, 0, 0 };
|
|
static const uint8_t sign[AV1_SEG_LVL_MAX] = { 1, 1, 1, 1, 1, 0, 0, 0 };
|
|
static const uint8_t default_feature_enabled[AV1_SEG_LVL_MAX] = { 0 };
|
|
static const int16_t default_feature_value[AV1_SEG_LVL_MAX] = { 0 };
|
|
int i, j, err;
|
|
|
|
flag(segmentation_enabled);
|
|
|
|
if (current->segmentation_enabled) {
|
|
if (current->primary_ref_frame == AV1_PRIMARY_REF_NONE) {
|
|
infer(segmentation_update_map, 1);
|
|
infer(segmentation_temporal_update, 0);
|
|
infer(segmentation_update_data, 1);
|
|
} else {
|
|
flag(segmentation_update_map);
|
|
if (current->segmentation_update_map)
|
|
flag(segmentation_temporal_update);
|
|
else
|
|
infer(segmentation_temporal_update, 0);
|
|
flag(segmentation_update_data);
|
|
}
|
|
|
|
for (i = 0; i < AV1_MAX_SEGMENTS; i++) {
|
|
const uint8_t *ref_feature_enabled;
|
|
const int16_t *ref_feature_value;
|
|
|
|
if (current->primary_ref_frame == AV1_PRIMARY_REF_NONE) {
|
|
ref_feature_enabled = default_feature_enabled;
|
|
ref_feature_value = default_feature_value;
|
|
} else {
|
|
ref_feature_enabled =
|
|
priv->ref[current->ref_frame_idx[current->primary_ref_frame]].feature_enabled[i];
|
|
ref_feature_value =
|
|
priv->ref[current->ref_frame_idx[current->primary_ref_frame]].feature_value[i];
|
|
}
|
|
|
|
for (j = 0; j < AV1_SEG_LVL_MAX; j++) {
|
|
if (current->segmentation_update_data) {
|
|
flags(feature_enabled[i][j], 2, i, j);
|
|
|
|
if (current->feature_enabled[i][j] && bits[j] > 0) {
|
|
if (sign[j])
|
|
sus(1 + bits[j], feature_value[i][j], 2, i, j);
|
|
else
|
|
fbs(bits[j], feature_value[i][j], 2, i, j);
|
|
} else {
|
|
infer(feature_value[i][j], 0);
|
|
}
|
|
} else {
|
|
infer(feature_enabled[i][j], ref_feature_enabled[j]);
|
|
infer(feature_value[i][j], ref_feature_value[j]);
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
for (i = 0; i < AV1_MAX_SEGMENTS; i++) {
|
|
for (j = 0; j < AV1_SEG_LVL_MAX; j++) {
|
|
infer(feature_enabled[i][j], 0);
|
|
infer(feature_value[i][j], 0);
|
|
}
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int FUNC(delta_q_params)(CodedBitstreamContext *ctx, RWContext *rw,
|
|
AV1RawFrameHeader *current)
|
|
{
|
|
int err;
|
|
|
|
if (current->base_q_idx > 0)
|
|
flag(delta_q_present);
|
|
else
|
|
infer(delta_q_present, 0);
|
|
|
|
if (current->delta_q_present)
|
|
fb(2, delta_q_res);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int FUNC(delta_lf_params)(CodedBitstreamContext *ctx, RWContext *rw,
|
|
AV1RawFrameHeader *current)
|
|
{
|
|
int err;
|
|
|
|
if (current->delta_q_present) {
|
|
if (!current->allow_intrabc)
|
|
flag(delta_lf_present);
|
|
else
|
|
infer(delta_lf_present, 0);
|
|
if (current->delta_lf_present) {
|
|
fb(2, delta_lf_res);
|
|
flag(delta_lf_multi);
|
|
} else {
|
|
infer(delta_lf_res, 0);
|
|
infer(delta_lf_multi, 0);
|
|
}
|
|
} else {
|
|
infer(delta_lf_present, 0);
|
|
infer(delta_lf_res, 0);
|
|
infer(delta_lf_multi, 0);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int FUNC(loop_filter_params)(CodedBitstreamContext *ctx, RWContext *rw,
|
|
AV1RawFrameHeader *current)
|
|
{
|
|
CodedBitstreamAV1Context *priv = ctx->priv_data;
|
|
static const int8_t default_loop_filter_ref_deltas[AV1_TOTAL_REFS_PER_FRAME] =
|
|
{ 1, 0, 0, 0, -1, 0, -1, -1 };
|
|
static const int8_t default_loop_filter_mode_deltas[2] = { 0, 0 };
|
|
int i, err;
|
|
|
|
if (priv->coded_lossless || current->allow_intrabc) {
|
|
infer(loop_filter_level[0], 0);
|
|
infer(loop_filter_level[1], 0);
|
|
infer(loop_filter_ref_deltas[AV1_REF_FRAME_INTRA], 1);
|
|
infer(loop_filter_ref_deltas[AV1_REF_FRAME_LAST], 0);
|
|
infer(loop_filter_ref_deltas[AV1_REF_FRAME_LAST2], 0);
|
|
infer(loop_filter_ref_deltas[AV1_REF_FRAME_LAST3], 0);
|
|
infer(loop_filter_ref_deltas[AV1_REF_FRAME_BWDREF], 0);
|
|
infer(loop_filter_ref_deltas[AV1_REF_FRAME_GOLDEN], -1);
|
|
infer(loop_filter_ref_deltas[AV1_REF_FRAME_ALTREF], -1);
|
|
infer(loop_filter_ref_deltas[AV1_REF_FRAME_ALTREF2], -1);
|
|
for (i = 0; i < 2; i++)
|
|
infer(loop_filter_mode_deltas[i], 0);
|
|
return 0;
|
|
}
|
|
|
|
fb(6, loop_filter_level[0]);
|
|
fb(6, loop_filter_level[1]);
|
|
|
|
if (priv->num_planes > 1) {
|
|
if (current->loop_filter_level[0] ||
|
|
current->loop_filter_level[1]) {
|
|
fb(6, loop_filter_level[2]);
|
|
fb(6, loop_filter_level[3]);
|
|
}
|
|
}
|
|
|
|
fb(3, loop_filter_sharpness);
|
|
|
|
flag(loop_filter_delta_enabled);
|
|
if (current->loop_filter_delta_enabled) {
|
|
const int8_t *ref_loop_filter_ref_deltas, *ref_loop_filter_mode_deltas;
|
|
|
|
if (current->primary_ref_frame == AV1_PRIMARY_REF_NONE) {
|
|
ref_loop_filter_ref_deltas = default_loop_filter_ref_deltas;
|
|
ref_loop_filter_mode_deltas = default_loop_filter_mode_deltas;
|
|
} else {
|
|
ref_loop_filter_ref_deltas =
|
|
priv->ref[current->ref_frame_idx[current->primary_ref_frame]].loop_filter_ref_deltas;
|
|
ref_loop_filter_mode_deltas =
|
|
priv->ref[current->ref_frame_idx[current->primary_ref_frame]].loop_filter_mode_deltas;
|
|
}
|
|
|
|
flag(loop_filter_delta_update);
|
|
for (i = 0; i < AV1_TOTAL_REFS_PER_FRAME; i++) {
|
|
if (current->loop_filter_delta_update)
|
|
flags(update_ref_delta[i], 1, i);
|
|
else
|
|
infer(update_ref_delta[i], 0);
|
|
if (current->update_ref_delta[i])
|
|
sus(1 + 6, loop_filter_ref_deltas[i], 1, i);
|
|
else
|
|
infer(loop_filter_ref_deltas[i], ref_loop_filter_ref_deltas[i]);
|
|
}
|
|
for (i = 0; i < 2; i++) {
|
|
if (current->loop_filter_delta_update)
|
|
flags(update_mode_delta[i], 1, i);
|
|
else
|
|
infer(update_mode_delta[i], 0);
|
|
if (current->update_mode_delta[i])
|
|
sus(1 + 6, loop_filter_mode_deltas[i], 1, i);
|
|
else
|
|
infer(loop_filter_mode_deltas[i], ref_loop_filter_mode_deltas[i]);
|
|
}
|
|
} else {
|
|
for (i = 0; i < AV1_TOTAL_REFS_PER_FRAME; i++)
|
|
infer(loop_filter_ref_deltas[i], default_loop_filter_ref_deltas[i]);
|
|
for (i = 0; i < 2; i++)
|
|
infer(loop_filter_mode_deltas[i], default_loop_filter_mode_deltas[i]);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int FUNC(cdef_params)(CodedBitstreamContext *ctx, RWContext *rw,
|
|
AV1RawFrameHeader *current)
|
|
{
|
|
CodedBitstreamAV1Context *priv = ctx->priv_data;
|
|
const AV1RawSequenceHeader *seq = priv->sequence_header;
|
|
int i, err;
|
|
|
|
if (priv->coded_lossless || current->allow_intrabc ||
|
|
!seq->enable_cdef) {
|
|
infer(cdef_damping_minus_3, 0);
|
|
infer(cdef_bits, 0);
|
|
infer(cdef_y_pri_strength[0], 0);
|
|
infer(cdef_y_sec_strength[0], 0);
|
|
infer(cdef_uv_pri_strength[0], 0);
|
|
infer(cdef_uv_sec_strength[0], 0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
fb(2, cdef_damping_minus_3);
|
|
fb(2, cdef_bits);
|
|
|
|
for (i = 0; i < (1 << current->cdef_bits); i++) {
|
|
fbs(4, cdef_y_pri_strength[i], 1, i);
|
|
fbs(2, cdef_y_sec_strength[i], 1, i);
|
|
|
|
if (priv->num_planes > 1) {
|
|
fbs(4, cdef_uv_pri_strength[i], 1, i);
|
|
fbs(2, cdef_uv_sec_strength[i], 1, i);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int FUNC(lr_params)(CodedBitstreamContext *ctx, RWContext *rw,
|
|
AV1RawFrameHeader *current)
|
|
{
|
|
CodedBitstreamAV1Context *priv = ctx->priv_data;
|
|
const AV1RawSequenceHeader *seq = priv->sequence_header;
|
|
int uses_lr, uses_chroma_lr;
|
|
int i, err;
|
|
|
|
if (priv->all_lossless || current->allow_intrabc ||
|
|
!seq->enable_restoration) {
|
|
return 0;
|
|
}
|
|
|
|
uses_lr = uses_chroma_lr = 0;
|
|
for (i = 0; i < priv->num_planes; i++) {
|
|
fbs(2, lr_type[i], 1, i);
|
|
|
|
if (current->lr_type[i] != AV1_RESTORE_NONE) {
|
|
uses_lr = 1;
|
|
if (i > 0)
|
|
uses_chroma_lr = 1;
|
|
}
|
|
}
|
|
|
|
if (uses_lr) {
|
|
if (seq->use_128x128_superblock)
|
|
increment(lr_unit_shift, 1, 2);
|
|
else
|
|
increment(lr_unit_shift, 0, 2);
|
|
|
|
if(seq->color_config.subsampling_x &&
|
|
seq->color_config.subsampling_y && uses_chroma_lr) {
|
|
fb(1, lr_uv_shift);
|
|
} else {
|
|
infer(lr_uv_shift, 0);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int FUNC(read_tx_mode)(CodedBitstreamContext *ctx, RWContext *rw,
|
|
AV1RawFrameHeader *current)
|
|
{
|
|
CodedBitstreamAV1Context *priv = ctx->priv_data;
|
|
int err;
|
|
|
|
if (priv->coded_lossless)
|
|
infer(tx_mode, 0);
|
|
else
|
|
increment(tx_mode, 1, 2);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int FUNC(frame_reference_mode)(CodedBitstreamContext *ctx, RWContext *rw,
|
|
AV1RawFrameHeader *current)
|
|
{
|
|
int err;
|
|
|
|
if (current->frame_type == AV1_FRAME_INTRA_ONLY ||
|
|
current->frame_type == AV1_FRAME_KEY)
|
|
infer(reference_select, 0);
|
|
else
|
|
flag(reference_select);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int FUNC(skip_mode_params)(CodedBitstreamContext *ctx, RWContext *rw,
|
|
AV1RawFrameHeader *current)
|
|
{
|
|
CodedBitstreamAV1Context *priv = ctx->priv_data;
|
|
const AV1RawSequenceHeader *seq = priv->sequence_header;
|
|
int skip_mode_allowed;
|
|
int err;
|
|
|
|
if (current->frame_type == AV1_FRAME_KEY ||
|
|
current->frame_type == AV1_FRAME_INTRA_ONLY ||
|
|
!current->reference_select || !seq->enable_order_hint) {
|
|
skip_mode_allowed = 0;
|
|
} else {
|
|
int forward_idx, backward_idx;
|
|
int forward_hint, backward_hint;
|
|
int ref_hint, dist, i;
|
|
|
|
forward_idx = -1;
|
|
backward_idx = -1;
|
|
for (i = 0; i < AV1_REFS_PER_FRAME; i++) {
|
|
ref_hint = priv->ref[current->ref_frame_idx[i]].order_hint;
|
|
dist = cbs_av1_get_relative_dist(seq, ref_hint,
|
|
priv->order_hint);
|
|
if (dist < 0) {
|
|
if (forward_idx < 0 ||
|
|
cbs_av1_get_relative_dist(seq, ref_hint,
|
|
forward_hint) > 0) {
|
|
forward_idx = i;
|
|
forward_hint = ref_hint;
|
|
}
|
|
} else if (dist > 0) {
|
|
if (backward_idx < 0 ||
|
|
cbs_av1_get_relative_dist(seq, ref_hint,
|
|
backward_hint) < 0) {
|
|
backward_idx = i;
|
|
backward_hint = ref_hint;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (forward_idx < 0) {
|
|
skip_mode_allowed = 0;
|
|
} else if (backward_idx >= 0) {
|
|
skip_mode_allowed = 1;
|
|
// Frames for skip mode are forward_idx and backward_idx.
|
|
} else {
|
|
int second_forward_idx;
|
|
int second_forward_hint;
|
|
|
|
second_forward_idx = -1;
|
|
for (i = 0; i < AV1_REFS_PER_FRAME; i++) {
|
|
ref_hint = priv->ref[current->ref_frame_idx[i]].order_hint;
|
|
if (cbs_av1_get_relative_dist(seq, ref_hint,
|
|
forward_hint) < 0) {
|
|
if (second_forward_idx < 0 ||
|
|
cbs_av1_get_relative_dist(seq, ref_hint,
|
|
second_forward_hint) > 0) {
|
|
second_forward_idx = i;
|
|
second_forward_hint = ref_hint;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (second_forward_idx < 0) {
|
|
skip_mode_allowed = 0;
|
|
} else {
|
|
skip_mode_allowed = 1;
|
|
// Frames for skip mode are forward_idx and second_forward_idx.
|
|
}
|
|
}
|
|
}
|
|
|
|
if (skip_mode_allowed)
|
|
flag(skip_mode_present);
|
|
else
|
|
infer(skip_mode_present, 0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int FUNC(global_motion_param)(CodedBitstreamContext *ctx, RWContext *rw,
|
|
AV1RawFrameHeader *current,
|
|
int type, int ref, int idx)
|
|
{
|
|
uint32_t abs_bits, prec_bits, num_syms;
|
|
int err;
|
|
|
|
if (idx < 2) {
|
|
if (type == AV1_WARP_MODEL_TRANSLATION) {
|
|
abs_bits = AV1_GM_ABS_TRANS_ONLY_BITS - !current->allow_high_precision_mv;
|
|
prec_bits = AV1_GM_TRANS_ONLY_PREC_BITS - !current->allow_high_precision_mv;
|
|
} else {
|
|
abs_bits = AV1_GM_ABS_TRANS_BITS;
|
|
prec_bits = AV1_GM_TRANS_PREC_BITS;
|
|
}
|
|
} else {
|
|
abs_bits = AV1_GM_ABS_ALPHA_BITS;
|
|
prec_bits = AV1_GM_ALPHA_PREC_BITS;
|
|
}
|
|
|
|
num_syms = 2 * (1 << abs_bits) + 1;
|
|
subexp(gm_params[ref][idx], num_syms, 2, ref, idx);
|
|
|
|
// Actual gm_params value is not reconstructed here.
|
|
(void)prec_bits;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int FUNC(global_motion_params)(CodedBitstreamContext *ctx, RWContext *rw,
|
|
AV1RawFrameHeader *current)
|
|
{
|
|
int ref, type;
|
|
int err;
|
|
|
|
if (current->frame_type == AV1_FRAME_KEY ||
|
|
current->frame_type == AV1_FRAME_INTRA_ONLY)
|
|
return 0;
|
|
|
|
for (ref = AV1_REF_FRAME_LAST; ref <= AV1_REF_FRAME_ALTREF; ref++) {
|
|
flags(is_global[ref], 1, ref);
|
|
if (current->is_global[ref]) {
|
|
flags(is_rot_zoom[ref], 1, ref);
|
|
if (current->is_rot_zoom[ref]) {
|
|
type = AV1_WARP_MODEL_ROTZOOM;
|
|
} else {
|
|
flags(is_translation[ref], 1, ref);
|
|
type = current->is_translation[ref] ? AV1_WARP_MODEL_TRANSLATION
|
|
: AV1_WARP_MODEL_AFFINE;
|
|
}
|
|
} else {
|
|
type = AV1_WARP_MODEL_IDENTITY;
|
|
}
|
|
|
|
if (type >= AV1_WARP_MODEL_ROTZOOM) {
|
|
CHECK(FUNC(global_motion_param)(ctx, rw, current, type, ref, 2));
|
|
CHECK(FUNC(global_motion_param)(ctx, rw, current, type, ref, 3));
|
|
if (type == AV1_WARP_MODEL_AFFINE) {
|
|
CHECK(FUNC(global_motion_param)(ctx, rw, current, type, ref, 4));
|
|
CHECK(FUNC(global_motion_param)(ctx, rw, current, type, ref, 5));
|
|
} else {
|
|
// gm_params[ref][4] = -gm_params[ref][3]
|
|
// gm_params[ref][5] = gm_params[ref][2]
|
|
}
|
|
}
|
|
if (type >= AV1_WARP_MODEL_TRANSLATION) {
|
|
CHECK(FUNC(global_motion_param)(ctx, rw, current, type, ref, 0));
|
|
CHECK(FUNC(global_motion_param)(ctx, rw, current, type, ref, 1));
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int FUNC(film_grain_params)(CodedBitstreamContext *ctx, RWContext *rw,
|
|
AV1RawFilmGrainParams *current,
|
|
AV1RawFrameHeader *frame_header)
|
|
{
|
|
CodedBitstreamAV1Context *priv = ctx->priv_data;
|
|
const AV1RawSequenceHeader *seq = priv->sequence_header;
|
|
int num_pos_luma, num_pos_chroma;
|
|
int i, err;
|
|
|
|
if (!seq->film_grain_params_present ||
|
|
(!frame_header->show_frame && !frame_header->showable_frame))
|
|
return 0;
|
|
|
|
flag(apply_grain);
|
|
|
|
if (!current->apply_grain)
|
|
return 0;
|
|
|
|
fb(16, grain_seed);
|
|
|
|
if (frame_header->frame_type == AV1_FRAME_INTER)
|
|
flag(update_grain);
|
|
else
|
|
infer(update_grain, 1);
|
|
|
|
if (!current->update_grain) {
|
|
fb(3, film_grain_params_ref_idx);
|
|
return 0;
|
|
}
|
|
|
|
fc(4, num_y_points, 0, 14);
|
|
for (i = 0; i < current->num_y_points; i++) {
|
|
fcs(8, point_y_value[i],
|
|
i ? current->point_y_value[i - 1] + 1 : 0,
|
|
MAX_UINT_BITS(8) - (current->num_y_points - i - 1),
|
|
1, i);
|
|
fbs(8, point_y_scaling[i], 1, i);
|
|
}
|
|
|
|
if (seq->color_config.mono_chrome)
|
|
infer(chroma_scaling_from_luma, 0);
|
|
else
|
|
flag(chroma_scaling_from_luma);
|
|
|
|
if (seq->color_config.mono_chrome ||
|
|
current->chroma_scaling_from_luma ||
|
|
(seq->color_config.subsampling_x == 1 &&
|
|
seq->color_config.subsampling_y == 1 &&
|
|
current->num_y_points == 0)) {
|
|
infer(num_cb_points, 0);
|
|
infer(num_cr_points, 0);
|
|
} else {
|
|
fc(4, num_cb_points, 0, 10);
|
|
for (i = 0; i < current->num_cb_points; i++) {
|
|
fcs(8, point_cb_value[i],
|
|
i ? current->point_cb_value[i - 1] + 1 : 0,
|
|
MAX_UINT_BITS(8) - (current->num_cb_points - i - 1),
|
|
1, i);
|
|
fbs(8, point_cb_scaling[i], 1, i);
|
|
}
|
|
fc(4, num_cr_points, 0, 10);
|
|
for (i = 0; i < current->num_cr_points; i++) {
|
|
fcs(8, point_cr_value[i],
|
|
i ? current->point_cr_value[i - 1] + 1 : 0,
|
|
MAX_UINT_BITS(8) - (current->num_cr_points - i - 1),
|
|
1, i);
|
|
fbs(8, point_cr_scaling[i], 1, i);
|
|
}
|
|
}
|
|
|
|
fb(2, grain_scaling_minus_8);
|
|
fb(2, ar_coeff_lag);
|
|
num_pos_luma = 2 * current->ar_coeff_lag * (current->ar_coeff_lag + 1);
|
|
if (current->num_y_points) {
|
|
num_pos_chroma = num_pos_luma + 1;
|
|
for (i = 0; i < num_pos_luma; i++)
|
|
fbs(8, ar_coeffs_y_plus_128[i], 1, i);
|
|
} else {
|
|
num_pos_chroma = num_pos_luma;
|
|
}
|
|
if (current->chroma_scaling_from_luma || current->num_cb_points) {
|
|
for (i = 0; i < num_pos_chroma; i++)
|
|
fbs(8, ar_coeffs_cb_plus_128[i], 1, i);
|
|
}
|
|
if (current->chroma_scaling_from_luma || current->num_cr_points) {
|
|
for (i = 0; i < num_pos_chroma; i++)
|
|
fbs(8, ar_coeffs_cr_plus_128[i], 1, i);
|
|
}
|
|
fb(2, ar_coeff_shift_minus_6);
|
|
fb(2, grain_scale_shift);
|
|
if (current->num_cb_points) {
|
|
fb(8, cb_mult);
|
|
fb(8, cb_luma_mult);
|
|
fb(9, cb_offset);
|
|
}
|
|
if (current->num_cr_points) {
|
|
fb(8, cr_mult);
|
|
fb(8, cr_luma_mult);
|
|
fb(9, cr_offset);
|
|
}
|
|
|
|
flag(overlap_flag);
|
|
flag(clip_to_restricted_range);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int FUNC(uncompressed_header)(CodedBitstreamContext *ctx, RWContext *rw,
|
|
AV1RawFrameHeader *current)
|
|
{
|
|
CodedBitstreamAV1Context *priv = ctx->priv_data;
|
|
const AV1RawSequenceHeader *seq;
|
|
int id_len, diff_len, all_frames, frame_is_intra, order_hint_bits;
|
|
int i, err;
|
|
|
|
if (!priv->sequence_header) {
|
|
av_log(ctx->log_ctx, AV_LOG_ERROR, "No sequence header available: "
|
|
"unable to decode frame header.\n");
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
seq = priv->sequence_header;
|
|
|
|
id_len = seq->additional_frame_id_length_minus_1 +
|
|
seq->delta_frame_id_length_minus_2 + 3;
|
|
all_frames = (1 << AV1_NUM_REF_FRAMES) - 1;
|
|
|
|
if (seq->reduced_still_picture_header) {
|
|
infer(show_existing_frame, 0);
|
|
infer(frame_type, AV1_FRAME_KEY);
|
|
infer(show_frame, 1);
|
|
infer(showable_frame, 0);
|
|
frame_is_intra = 1;
|
|
|
|
} else {
|
|
flag(show_existing_frame);
|
|
|
|
if (current->show_existing_frame) {
|
|
AV1ReferenceFrameState *ref;
|
|
|
|
fb(3, frame_to_show_map_idx);
|
|
ref = &priv->ref[current->frame_to_show_map_idx];
|
|
|
|
if (!ref->valid) {
|
|
av_log(ctx->log_ctx, AV_LOG_ERROR, "Missing reference frame needed for "
|
|
"show_existing_frame (frame_to_show_map_idx = %d).\n",
|
|
current->frame_to_show_map_idx);
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
|
|
if (seq->decoder_model_info_present_flag &&
|
|
!seq->timing_info.equal_picture_interval) {
|
|
fb(seq->decoder_model_info.frame_presentation_time_length_minus_1 + 1,
|
|
frame_presentation_time);
|
|
}
|
|
|
|
if (seq->frame_id_numbers_present_flag)
|
|
fb(id_len, display_frame_id);
|
|
|
|
infer(frame_type, ref->frame_type);
|
|
if (current->frame_type == AV1_FRAME_KEY) {
|
|
infer(refresh_frame_flags, all_frames);
|
|
|
|
// Section 7.21
|
|
infer(current_frame_id, ref->frame_id);
|
|
priv->upscaled_width = ref->upscaled_width;
|
|
priv->frame_width = ref->frame_width;
|
|
priv->frame_height = ref->frame_height;
|
|
priv->render_width = ref->render_width;
|
|
priv->render_height = ref->render_height;
|
|
priv->bit_depth = ref->bit_depth;
|
|
priv->order_hint = ref->order_hint;
|
|
} else
|
|
infer(refresh_frame_flags, 0);
|
|
|
|
infer(frame_width_minus_1, ref->upscaled_width - 1);
|
|
infer(frame_height_minus_1, ref->frame_height - 1);
|
|
infer(render_width_minus_1, ref->render_width - 1);
|
|
infer(render_height_minus_1, ref->render_height - 1);
|
|
|
|
// Section 7.20
|
|
goto update_refs;
|
|
}
|
|
|
|
fb(2, frame_type);
|
|
frame_is_intra = (current->frame_type == AV1_FRAME_INTRA_ONLY ||
|
|
current->frame_type == AV1_FRAME_KEY);
|
|
|
|
flag(show_frame);
|
|
if (current->show_frame &&
|
|
seq->decoder_model_info_present_flag &&
|
|
!seq->timing_info.equal_picture_interval) {
|
|
fb(seq->decoder_model_info.frame_presentation_time_length_minus_1 + 1,
|
|
frame_presentation_time);
|
|
}
|
|
if (current->show_frame)
|
|
infer(showable_frame, current->frame_type != AV1_FRAME_KEY);
|
|
else
|
|
flag(showable_frame);
|
|
|
|
if (current->frame_type == AV1_FRAME_SWITCH ||
|
|
(current->frame_type == AV1_FRAME_KEY && current->show_frame))
|
|
infer(error_resilient_mode, 1);
|
|
else
|
|
flag(error_resilient_mode);
|
|
}
|
|
|
|
if (current->frame_type == AV1_FRAME_KEY && current->show_frame) {
|
|
for (i = 0; i < AV1_NUM_REF_FRAMES; i++) {
|
|
priv->ref[i].valid = 0;
|
|
priv->ref[i].order_hint = 0;
|
|
}
|
|
}
|
|
|
|
flag(disable_cdf_update);
|
|
|
|
if (seq->seq_force_screen_content_tools ==
|
|
AV1_SELECT_SCREEN_CONTENT_TOOLS) {
|
|
flag(allow_screen_content_tools);
|
|
} else {
|
|
infer(allow_screen_content_tools,
|
|
seq->seq_force_screen_content_tools);
|
|
}
|
|
if (current->allow_screen_content_tools) {
|
|
if (seq->seq_force_integer_mv == AV1_SELECT_INTEGER_MV)
|
|
flag(force_integer_mv);
|
|
else
|
|
infer(force_integer_mv, seq->seq_force_integer_mv);
|
|
} else {
|
|
infer(force_integer_mv, 0);
|
|
}
|
|
|
|
if (seq->frame_id_numbers_present_flag) {
|
|
fb(id_len, current_frame_id);
|
|
|
|
diff_len = seq->delta_frame_id_length_minus_2 + 2;
|
|
for (i = 0; i < AV1_NUM_REF_FRAMES; i++) {
|
|
if (current->current_frame_id > (1 << diff_len)) {
|
|
if (priv->ref[i].frame_id > current->current_frame_id ||
|
|
priv->ref[i].frame_id < (current->current_frame_id -
|
|
(1 << diff_len)))
|
|
priv->ref[i].valid = 0;
|
|
} else {
|
|
if (priv->ref[i].frame_id > current->current_frame_id &&
|
|
priv->ref[i].frame_id < ((1 << id_len) +
|
|
current->current_frame_id -
|
|
(1 << diff_len)))
|
|
priv->ref[i].valid = 0;
|
|
}
|
|
}
|
|
} else {
|
|
infer(current_frame_id, 0);
|
|
}
|
|
|
|
if (current->frame_type == AV1_FRAME_SWITCH)
|
|
infer(frame_size_override_flag, 1);
|
|
else if(seq->reduced_still_picture_header)
|
|
infer(frame_size_override_flag, 0);
|
|
else
|
|
flag(frame_size_override_flag);
|
|
|
|
order_hint_bits =
|
|
seq->enable_order_hint ? seq->order_hint_bits_minus_1 + 1 : 0;
|
|
if (order_hint_bits > 0)
|
|
fb(order_hint_bits, order_hint);
|
|
else
|
|
infer(order_hint, 0);
|
|
priv->order_hint = current->order_hint;
|
|
|
|
if (frame_is_intra || current->error_resilient_mode)
|
|
infer(primary_ref_frame, AV1_PRIMARY_REF_NONE);
|
|
else
|
|
fb(3, primary_ref_frame);
|
|
|
|
if (seq->decoder_model_info_present_flag) {
|
|
flag(buffer_removal_time_present_flag);
|
|
if (current->buffer_removal_time_present_flag) {
|
|
for (i = 0; i <= seq->operating_points_cnt_minus_1; i++) {
|
|
if (seq->decoder_model_present_for_this_op[i]) {
|
|
int op_pt_idc = seq->operating_point_idc[i];
|
|
int in_temporal_layer = (op_pt_idc >> priv->temporal_id ) & 1;
|
|
int in_spatial_layer = (op_pt_idc >> (priv->spatial_id + 8)) & 1;
|
|
if (seq->operating_point_idc[i] == 0 ||
|
|
(in_temporal_layer && in_spatial_layer)) {
|
|
fbs(seq->decoder_model_info.buffer_removal_time_length_minus_1 + 1,
|
|
buffer_removal_time[i], 1, i);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (current->frame_type == AV1_FRAME_SWITCH ||
|
|
(current->frame_type == AV1_FRAME_KEY && current->show_frame))
|
|
infer(refresh_frame_flags, all_frames);
|
|
else
|
|
fb(8, refresh_frame_flags);
|
|
|
|
if (!frame_is_intra || current->refresh_frame_flags != all_frames) {
|
|
if (seq->enable_order_hint) {
|
|
for (i = 0; i < AV1_NUM_REF_FRAMES; i++) {
|
|
if (current->error_resilient_mode)
|
|
fbs(order_hint_bits, ref_order_hint[i], 1, i);
|
|
else
|
|
infer(ref_order_hint[i], priv->ref[i].order_hint);
|
|
if (current->ref_order_hint[i] != priv->ref[i].order_hint)
|
|
priv->ref[i].valid = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (current->frame_type == AV1_FRAME_KEY ||
|
|
current->frame_type == AV1_FRAME_INTRA_ONLY) {
|
|
CHECK(FUNC(frame_size)(ctx, rw, current));
|
|
CHECK(FUNC(render_size)(ctx, rw, current));
|
|
|
|
if (current->allow_screen_content_tools &&
|
|
priv->upscaled_width == priv->frame_width)
|
|
flag(allow_intrabc);
|
|
else
|
|
infer(allow_intrabc, 0);
|
|
|
|
} else {
|
|
if (!seq->enable_order_hint) {
|
|
infer(frame_refs_short_signaling, 0);
|
|
} else {
|
|
flag(frame_refs_short_signaling);
|
|
if (current->frame_refs_short_signaling) {
|
|
fb(3, last_frame_idx);
|
|
fb(3, golden_frame_idx);
|
|
CHECK(FUNC(set_frame_refs)(ctx, rw, current));
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < AV1_REFS_PER_FRAME; i++) {
|
|
if (!current->frame_refs_short_signaling)
|
|
fbs(3, ref_frame_idx[i], 1, i);
|
|
if (seq->frame_id_numbers_present_flag) {
|
|
fbs(seq->delta_frame_id_length_minus_2 + 2,
|
|
delta_frame_id_minus1[i], 1, i);
|
|
}
|
|
}
|
|
|
|
if (current->frame_size_override_flag &&
|
|
!current->error_resilient_mode) {
|
|
CHECK(FUNC(frame_size_with_refs)(ctx, rw, current));
|
|
} else {
|
|
CHECK(FUNC(frame_size)(ctx, rw, current));
|
|
CHECK(FUNC(render_size)(ctx, rw, current));
|
|
}
|
|
|
|
if (current->force_integer_mv)
|
|
infer(allow_high_precision_mv, 0);
|
|
else
|
|
flag(allow_high_precision_mv);
|
|
|
|
CHECK(FUNC(interpolation_filter)(ctx, rw, current));
|
|
|
|
flag(is_motion_mode_switchable);
|
|
|
|
if (current->error_resilient_mode ||
|
|
!seq->enable_ref_frame_mvs)
|
|
infer(use_ref_frame_mvs, 0);
|
|
else
|
|
flag(use_ref_frame_mvs);
|
|
|
|
infer(allow_intrabc, 0);
|
|
}
|
|
|
|
if (!frame_is_intra) {
|
|
// Derive reference frame sign biases.
|
|
}
|
|
|
|
if (seq->reduced_still_picture_header || current->disable_cdf_update)
|
|
infer(disable_frame_end_update_cdf, 1);
|
|
else
|
|
flag(disable_frame_end_update_cdf);
|
|
|
|
if (current->primary_ref_frame == AV1_PRIMARY_REF_NONE) {
|
|
// Init non-coeff CDFs.
|
|
// Setup past independence.
|
|
} else {
|
|
// Load CDF tables from previous frame.
|
|
// Load params from previous frame.
|
|
}
|
|
|
|
if (current->use_ref_frame_mvs) {
|
|
// Perform motion field estimation process.
|
|
}
|
|
|
|
CHECK(FUNC(tile_info)(ctx, rw, current));
|
|
|
|
CHECK(FUNC(quantization_params)(ctx, rw, current));
|
|
|
|
CHECK(FUNC(segmentation_params)(ctx, rw, current));
|
|
|
|
CHECK(FUNC(delta_q_params)(ctx, rw, current));
|
|
|
|
CHECK(FUNC(delta_lf_params)(ctx, rw, current));
|
|
|
|
// Init coeff CDFs / load previous segments.
|
|
|
|
priv->coded_lossless = 1;
|
|
for (i = 0; i < AV1_MAX_SEGMENTS; i++) {
|
|
int qindex;
|
|
if (current->feature_enabled[i][AV1_SEG_LVL_ALT_Q]) {
|
|
qindex = (current->base_q_idx +
|
|
current->feature_value[i][AV1_SEG_LVL_ALT_Q]);
|
|
} else {
|
|
qindex = current->base_q_idx;
|
|
}
|
|
qindex = av_clip_uintp2(qindex, 8);
|
|
|
|
if (qindex || current->delta_q_y_dc ||
|
|
current->delta_q_u_ac || current->delta_q_u_dc ||
|
|
current->delta_q_v_ac || current->delta_q_v_dc) {
|
|
priv->coded_lossless = 0;
|
|
}
|
|
}
|
|
priv->all_lossless = priv->coded_lossless &&
|
|
priv->frame_width == priv->upscaled_width;
|
|
|
|
CHECK(FUNC(loop_filter_params)(ctx, rw, current));
|
|
|
|
CHECK(FUNC(cdef_params)(ctx, rw, current));
|
|
|
|
CHECK(FUNC(lr_params)(ctx, rw, current));
|
|
|
|
CHECK(FUNC(read_tx_mode)(ctx, rw, current));
|
|
|
|
CHECK(FUNC(frame_reference_mode)(ctx, rw, current));
|
|
|
|
CHECK(FUNC(skip_mode_params)(ctx, rw, current));
|
|
|
|
if (frame_is_intra || current->error_resilient_mode ||
|
|
!seq->enable_warped_motion)
|
|
infer(allow_warped_motion, 0);
|
|
else
|
|
flag(allow_warped_motion);
|
|
|
|
flag(reduced_tx_set);
|
|
|
|
CHECK(FUNC(global_motion_params)(ctx, rw, current));
|
|
|
|
CHECK(FUNC(film_grain_params)(ctx, rw, ¤t->film_grain, current));
|
|
|
|
av_log(ctx->log_ctx, AV_LOG_DEBUG, "Frame %d: size %dx%d "
|
|
"upscaled %d render %dx%d subsample %dx%d "
|
|
"bitdepth %d tiles %dx%d.\n", priv->order_hint,
|
|
priv->frame_width, priv->frame_height, priv->upscaled_width,
|
|
priv->render_width, priv->render_height,
|
|
seq->color_config.subsampling_x + 1,
|
|
seq->color_config.subsampling_y + 1, priv->bit_depth,
|
|
priv->tile_rows, priv->tile_cols);
|
|
|
|
update_refs:
|
|
for (i = 0; i < AV1_NUM_REF_FRAMES; i++) {
|
|
if (current->refresh_frame_flags & (1 << i)) {
|
|
priv->ref[i] = (AV1ReferenceFrameState) {
|
|
.valid = 1,
|
|
.frame_id = current->current_frame_id,
|
|
.upscaled_width = priv->upscaled_width,
|
|
.frame_width = priv->frame_width,
|
|
.frame_height = priv->frame_height,
|
|
.render_width = priv->render_width,
|
|
.render_height = priv->render_height,
|
|
.frame_type = current->frame_type,
|
|
.subsampling_x = seq->color_config.subsampling_x,
|
|
.subsampling_y = seq->color_config.subsampling_y,
|
|
.bit_depth = priv->bit_depth,
|
|
.order_hint = priv->order_hint,
|
|
};
|
|
memcpy(priv->ref[i].loop_filter_ref_deltas, current->loop_filter_ref_deltas,
|
|
sizeof(current->loop_filter_ref_deltas));
|
|
memcpy(priv->ref[i].loop_filter_mode_deltas, current->loop_filter_mode_deltas,
|
|
sizeof(current->loop_filter_mode_deltas));
|
|
memcpy(priv->ref[i].feature_enabled, current->feature_enabled,
|
|
sizeof(current->feature_enabled));
|
|
memcpy(priv->ref[i].feature_value, current->feature_value,
|
|
sizeof(current->feature_value));
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int FUNC(frame_header_obu)(CodedBitstreamContext *ctx, RWContext *rw,
|
|
AV1RawFrameHeader *current, int redundant,
|
|
AVBufferRef *rw_buffer_ref)
|
|
{
|
|
CodedBitstreamAV1Context *priv = ctx->priv_data;
|
|
int start_pos, fh_bits, fh_bytes, err;
|
|
uint8_t *fh_start;
|
|
|
|
if (priv->seen_frame_header) {
|
|
if (!redundant) {
|
|
av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid repeated "
|
|
"frame header OBU.\n");
|
|
return AVERROR_INVALIDDATA;
|
|
} else {
|
|
GetBitContext fh;
|
|
size_t i, b;
|
|
uint32_t val;
|
|
|
|
HEADER("Redundant Frame Header");
|
|
|
|
av_assert0(priv->frame_header_ref && priv->frame_header);
|
|
|
|
init_get_bits(&fh, priv->frame_header,
|
|
priv->frame_header_size);
|
|
for (i = 0; i < priv->frame_header_size; i += 8) {
|
|
b = FFMIN(priv->frame_header_size - i, 8);
|
|
val = get_bits(&fh, b);
|
|
xf(b, frame_header_copy[i],
|
|
val, val, val, 1, i / 8);
|
|
}
|
|
}
|
|
} else {
|
|
if (redundant)
|
|
HEADER("Redundant Frame Header (used as Frame Header)");
|
|
else
|
|
HEADER("Frame Header");
|
|
|
|
#ifdef READ
|
|
start_pos = get_bits_count(rw);
|
|
#else
|
|
start_pos = put_bits_count(rw);
|
|
#endif
|
|
|
|
CHECK(FUNC(uncompressed_header)(ctx, rw, current));
|
|
|
|
priv->tile_num = 0;
|
|
|
|
if (current->show_existing_frame) {
|
|
priv->seen_frame_header = 0;
|
|
} else {
|
|
priv->seen_frame_header = 1;
|
|
|
|
av_buffer_unref(&priv->frame_header_ref);
|
|
|
|
#ifdef READ
|
|
fh_bits = get_bits_count(rw) - start_pos;
|
|
fh_start = (uint8_t*)rw->buffer + start_pos / 8;
|
|
#else
|
|
// Need to flush the bitwriter so that we can copy its output,
|
|
// but use a copy so we don't affect the caller's structure.
|
|
{
|
|
PutBitContext tmp = *rw;
|
|
flush_put_bits(&tmp);
|
|
}
|
|
|
|
fh_bits = put_bits_count(rw) - start_pos;
|
|
fh_start = rw->buf + start_pos / 8;
|
|
#endif
|
|
fh_bytes = (fh_bits + 7) / 8;
|
|
|
|
priv->frame_header_size = fh_bits;
|
|
|
|
if (rw_buffer_ref) {
|
|
priv->frame_header_ref = av_buffer_ref(rw_buffer_ref);
|
|
if (!priv->frame_header_ref)
|
|
return AVERROR(ENOMEM);
|
|
priv->frame_header = fh_start;
|
|
} else {
|
|
priv->frame_header_ref =
|
|
av_buffer_alloc(fh_bytes + AV_INPUT_BUFFER_PADDING_SIZE);
|
|
if (!priv->frame_header_ref)
|
|
return AVERROR(ENOMEM);
|
|
priv->frame_header = priv->frame_header_ref->data;
|
|
memcpy(priv->frame_header, fh_start, fh_bytes);
|
|
}
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int FUNC(tile_group_obu)(CodedBitstreamContext *ctx, RWContext *rw,
|
|
AV1RawTileGroup *current)
|
|
{
|
|
CodedBitstreamAV1Context *priv = ctx->priv_data;
|
|
int num_tiles, tile_bits;
|
|
int err;
|
|
|
|
HEADER("Tile Group");
|
|
|
|
num_tiles = priv->tile_cols * priv->tile_rows;
|
|
if (num_tiles > 1)
|
|
flag(tile_start_and_end_present_flag);
|
|
else
|
|
infer(tile_start_and_end_present_flag, 0);
|
|
|
|
if (num_tiles == 1 || !current->tile_start_and_end_present_flag) {
|
|
infer(tg_start, 0);
|
|
infer(tg_end, num_tiles - 1);
|
|
} else {
|
|
tile_bits = cbs_av1_tile_log2(1, priv->tile_cols) +
|
|
cbs_av1_tile_log2(1, priv->tile_rows);
|
|
fc(tile_bits, tg_start, priv->tile_num, num_tiles - 1);
|
|
fc(tile_bits, tg_end, current->tg_start, num_tiles - 1);
|
|
}
|
|
|
|
priv->tile_num = current->tg_end + 1;
|
|
|
|
CHECK(FUNC(byte_alignment)(ctx, rw));
|
|
|
|
// Reset header for next frame.
|
|
if (current->tg_end == num_tiles - 1)
|
|
priv->seen_frame_header = 0;
|
|
|
|
// Tile data follows.
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int FUNC(frame_obu)(CodedBitstreamContext *ctx, RWContext *rw,
|
|
AV1RawFrame *current,
|
|
AVBufferRef *rw_buffer_ref)
|
|
{
|
|
int err;
|
|
|
|
CHECK(FUNC(frame_header_obu)(ctx, rw, ¤t->header,
|
|
0, rw_buffer_ref));
|
|
|
|
CHECK(FUNC(byte_alignment)(ctx, rw));
|
|
|
|
CHECK(FUNC(tile_group_obu)(ctx, rw, ¤t->tile_group));
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int FUNC(tile_list_obu)(CodedBitstreamContext *ctx, RWContext *rw,
|
|
AV1RawTileList *current)
|
|
{
|
|
int err;
|
|
|
|
fb(8, output_frame_width_in_tiles_minus_1);
|
|
fb(8, output_frame_height_in_tiles_minus_1);
|
|
|
|
fb(16, tile_count_minus_1);
|
|
|
|
// Tile data follows.
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int FUNC(metadata_hdr_cll)(CodedBitstreamContext *ctx, RWContext *rw,
|
|
AV1RawMetadataHDRCLL *current)
|
|
{
|
|
int err;
|
|
|
|
fb(16, max_cll);
|
|
fb(16, max_fall);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int FUNC(metadata_hdr_mdcv)(CodedBitstreamContext *ctx, RWContext *rw,
|
|
AV1RawMetadataHDRMDCV *current)
|
|
{
|
|
int err, i;
|
|
|
|
for (i = 0; i < 3; i++) {
|
|
fbs(16, primary_chromaticity_x[i], 1, i);
|
|
fbs(16, primary_chromaticity_y[i], 1, i);
|
|
}
|
|
|
|
fb(16, white_point_chromaticity_x);
|
|
fb(16, white_point_chromaticity_y);
|
|
|
|
fc(32, luminance_max, 1, MAX_UINT_BITS(32));
|
|
// luminance_min must be lower than luminance_max. Convert luminance_max from
|
|
// 24.8 fixed point to 18.14 fixed point in order to compare them.
|
|
fc(32, luminance_min, 0, FFMIN(((uint64_t)current->luminance_max << 6) - 1,
|
|
MAX_UINT_BITS(32)));
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int FUNC(scalability_structure)(CodedBitstreamContext *ctx, RWContext *rw,
|
|
AV1RawMetadataScalability *current)
|
|
{
|
|
CodedBitstreamAV1Context *priv = ctx->priv_data;
|
|
const AV1RawSequenceHeader *seq;
|
|
int err, i, j;
|
|
|
|
if (!priv->sequence_header) {
|
|
av_log(ctx->log_ctx, AV_LOG_ERROR, "No sequence header available: "
|
|
"unable to parse scalability metadata.\n");
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
seq = priv->sequence_header;
|
|
|
|
fb(2, spatial_layers_cnt_minus_1);
|
|
flag(spatial_layer_dimensions_present_flag);
|
|
flag(spatial_layer_description_present_flag);
|
|
flag(temporal_group_description_present_flag);
|
|
fc(3, scalability_structure_reserved_3bits, 0, 0);
|
|
if (current->spatial_layer_dimensions_present_flag) {
|
|
for (i = 0; i <= current->spatial_layers_cnt_minus_1; i++) {
|
|
fcs(16, spatial_layer_max_width[i],
|
|
0, seq->max_frame_width_minus_1 + 1, 1, i);
|
|
fcs(16, spatial_layer_max_height[i],
|
|
0, seq->max_frame_height_minus_1 + 1, 1, i);
|
|
}
|
|
}
|
|
if (current->spatial_layer_description_present_flag) {
|
|
for (i = 0; i <= current->spatial_layers_cnt_minus_1; i++)
|
|
fbs(8, spatial_layer_ref_id[i], 1, i);
|
|
}
|
|
if (current->temporal_group_description_present_flag) {
|
|
fb(8, temporal_group_size);
|
|
for (i = 0; i < current->temporal_group_size; i++) {
|
|
fbs(3, temporal_group_temporal_id[i], 1, i);
|
|
flags(temporal_group_temporal_switching_up_point_flag[i], 1, i);
|
|
flags(temporal_group_spatial_switching_up_point_flag[i], 1, i);
|
|
fbs(3, temporal_group_ref_cnt[i], 1, i);
|
|
for (j = 0; j < current->temporal_group_ref_cnt[i]; j++) {
|
|
fbs(8, temporal_group_ref_pic_diff[i][j], 2, i, j);
|
|
}
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int FUNC(metadata_scalability)(CodedBitstreamContext *ctx, RWContext *rw,
|
|
AV1RawMetadataScalability *current)
|
|
{
|
|
int err;
|
|
|
|
fb(8, scalability_mode_idc);
|
|
|
|
if (current->scalability_mode_idc == AV1_SCALABILITY_SS)
|
|
CHECK(FUNC(scalability_structure)(ctx, rw, current));
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int FUNC(metadata_itut_t35)(CodedBitstreamContext *ctx, RWContext *rw,
|
|
AV1RawMetadataITUTT35 *current)
|
|
{
|
|
int err;
|
|
size_t i;
|
|
|
|
fb(8, itu_t_t35_country_code);
|
|
if (current->itu_t_t35_country_code == 0xff)
|
|
fb(8, itu_t_t35_country_code_extension_byte);
|
|
|
|
#ifdef READ
|
|
// The payload runs up to the start of the trailing bits, but there might
|
|
// be arbitrarily many trailing zeroes so we need to read through twice.
|
|
current->payload_size = cbs_av1_get_payload_bytes_left(rw);
|
|
|
|
current->payload_ref = av_buffer_alloc(current->payload_size);
|
|
if (!current->payload_ref)
|
|
return AVERROR(ENOMEM);
|
|
current->payload = current->payload_ref->data;
|
|
#endif
|
|
|
|
for (i = 0; i < current->payload_size; i++)
|
|
xf(8, itu_t_t35_payload_bytes[i], current->payload[i],
|
|
0x00, 0xff, 1, i);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int FUNC(metadata_timecode)(CodedBitstreamContext *ctx, RWContext *rw,
|
|
AV1RawMetadataTimecode *current)
|
|
{
|
|
int err;
|
|
|
|
fb(5, counting_type);
|
|
flag(full_timestamp_flag);
|
|
flag(discontinuity_flag);
|
|
flag(cnt_dropped_flag);
|
|
fb(9, n_frames);
|
|
|
|
if (current->full_timestamp_flag) {
|
|
fc(6, seconds_value, 0, 59);
|
|
fc(6, minutes_value, 0, 59);
|
|
fc(5, hours_value, 0, 23);
|
|
} else {
|
|
flag(seconds_flag);
|
|
if (current->seconds_flag) {
|
|
fc(6, seconds_value, 0, 59);
|
|
flag(minutes_flag);
|
|
if (current->minutes_flag) {
|
|
fc(6, minutes_value, 0, 59);
|
|
flag(hours_flag);
|
|
if (current->hours_flag)
|
|
fc(5, hours_value, 0, 23);
|
|
}
|
|
}
|
|
}
|
|
|
|
fb(5, time_offset_length);
|
|
if (current->time_offset_length > 0)
|
|
fb(current->time_offset_length, time_offset_value);
|
|
else
|
|
infer(time_offset_length, 0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int FUNC(metadata_obu)(CodedBitstreamContext *ctx, RWContext *rw,
|
|
AV1RawMetadata *current)
|
|
{
|
|
int err;
|
|
|
|
leb128(metadata_type);
|
|
|
|
switch (current->metadata_type) {
|
|
case AV1_METADATA_TYPE_HDR_CLL:
|
|
CHECK(FUNC(metadata_hdr_cll)(ctx, rw, ¤t->metadata.hdr_cll));
|
|
break;
|
|
case AV1_METADATA_TYPE_HDR_MDCV:
|
|
CHECK(FUNC(metadata_hdr_mdcv)(ctx, rw, ¤t->metadata.hdr_mdcv));
|
|
break;
|
|
case AV1_METADATA_TYPE_SCALABILITY:
|
|
CHECK(FUNC(metadata_scalability)(ctx, rw, ¤t->metadata.scalability));
|
|
break;
|
|
case AV1_METADATA_TYPE_ITUT_T35:
|
|
CHECK(FUNC(metadata_itut_t35)(ctx, rw, ¤t->metadata.itut_t35));
|
|
break;
|
|
case AV1_METADATA_TYPE_TIMECODE:
|
|
CHECK(FUNC(metadata_timecode)(ctx, rw, ¤t->metadata.timecode));
|
|
break;
|
|
default:
|
|
// Unknown metadata type.
|
|
return AVERROR_PATCHWELCOME;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int FUNC(padding_obu)(CodedBitstreamContext *ctx, RWContext *rw,
|
|
AV1RawPadding *current)
|
|
{
|
|
int i, err;
|
|
|
|
HEADER("Padding");
|
|
|
|
#ifdef READ
|
|
// The payload runs up to the start of the trailing bits, but there might
|
|
// be arbitrarily many trailing zeroes so we need to read through twice.
|
|
current->payload_size = cbs_av1_get_payload_bytes_left(rw);
|
|
|
|
current->payload_ref = av_buffer_alloc(current->payload_size);
|
|
if (!current->payload_ref)
|
|
return AVERROR(ENOMEM);
|
|
current->payload = current->payload_ref->data;
|
|
#endif
|
|
|
|
for (i = 0; i < current->payload_size; i++)
|
|
xf(8, obu_padding_byte[i], current->payload[i], 0x00, 0xff, 1, i);
|
|
|
|
return 0;
|
|
}
|