/* * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ static int FUNC(update_segmentation)(CodedBitstreamContext *ctx, CBSVP8BoolCodingRW *bool_coding_rw, VP8RawFrameHeader *current) { bc_f(1, update_segment_map); bc_f(1, update_segment_feature_data); if (current->update_segment_feature_data) { bc_f(1, segment_feature_mode); // quantizer for (int i = 0; i < 4; i++) { bc_b(segment_qp_update[i]); if (current->segment_qp_update[i]) bc_ss(7, segment_qp[i], 1, i); } // loop filter for (int i = 0; i < 4; i++) { bc_b(segment_loop_filter_level_update[i]); if (current->segment_loop_filter_level_update[i]) bc_ss(6, segment_loop_filter_level[i], 1, i); } } if (current->update_segment_map) { for (int i = 0; i < 3; i++) { bc_b(segment_probs_update[i]); if (current->segment_probs_update[i]) bc_fs(8, segment_probs[i], 1, i); } } return 0; } static int FUNC(mode_ref_lf_deltas)(CodedBitstreamContext *ctx, CBSVP8BoolCodingRW *bool_coding_rw, VP8RawFrameHeader *current) { bc_f(1, mode_ref_lf_delta_enable); if (current->mode_ref_lf_delta_enable) { bc_b(mode_ref_lf_delta_update); if (current->mode_ref_lf_delta_update) { // ref_lf_deltas for (int i = 0; i < 4; i++) { bc_b(ref_lf_deltas_update[i]); if (current->ref_lf_deltas_update[i]) bc_ss(6, ref_lf_deltas[i], 1, i); } // mode_lf_deltas for (int i = 0; i < 4; i++) { bc_b(mode_lf_deltas_update[i]); if (current->mode_lf_deltas_update[i]) bc_ss(6, mode_lf_deltas[i], 1, i); } } } return 0; } static int FUNC(quantization_params)(CodedBitstreamContext *ctx, CBSVP8BoolCodingRW *bool_coding_rw, VP8RawFrameHeader *current) { bc_f(7, base_qindex); bc_b(y1dc_delta_q_present); if (current->y1dc_delta_q_present) bc_s(4, y1dc_delta_q); bc_b(y2dc_delta_q_present); if (current->y2dc_delta_q_present) bc_s(4, y2dc_delta_q); bc_b(y2ac_delta_q_present); if (current->y2ac_delta_q_present) bc_s(4, y2ac_delta_q); bc_b(uvdc_delta_q_present); if (current->uvdc_delta_q_present) bc_s(4, uvdc_delta_q); bc_b(uvac_delta_q_present); if (current->uvac_delta_q_present) bc_s(4, uvac_delta_q); return 0; } static int FUNC(update_token_probs)(CodedBitstreamContext *ctx, CBSVP8BoolCodingRW *bool_coding_rw, VP8RawFrameHeader *current) { for (int i = 0; i < 4; ++i) { for (int j = 0; j < 8; ++j) { for (int k = 0; k < 3; ++k) { for (int l = 0; l < 11; ++l) { bc_b_prob(ff_vp8_token_update_probs[i][j][k][l], coeff_prob_update[i][j][k][l]); if (current->coeff_prob_update[i][j][k][l]) bc_fs(8, coeff_prob[i][j][k][l], 4, i, j, k, l); } } } } return 0; } static int FUNC(update_mv_probs)(CodedBitstreamContext *ctx, CBSVP8BoolCodingRW *bool_coding_rw, VP8RawFrameHeader *current) { for (int i = 0; i < 2; ++i) { for (int j = 0; j < 19; ++j) { bc_b(mv_prob_update[i][j]); if (current->mv_prob_update[i][j]) bc_fs(7, mv_prob[i][j], 2, i, j); } } return 0; } static int FUNC(frame_tag)(CodedBitstreamContext *ctx, RWContext *rw, VP8RawFrameHeader *current) { f(1, frame_type); f(3, profile); f(1, show_frame); f(19, first_partition_length_in_bytes); if (current->frame_type == VP8_KEY_FRAME) { fixed(8, start_code_0, VP8_START_CODE_0); fixed(8, start_code_1, VP8_START_CODE_1); fixed(8, start_code_2, VP8_START_CODE_2); f(14, width); f(2, horizontal_scale); f(14, height); f(2, vertical_scale); } return 0; } static int FUNC(frame_header)(CodedBitstreamContext *ctx, CBSVP8BoolCodingRW *bool_coding_rw, VP8RawFrameHeader *current) { if (current->frame_type == VP8_KEY_FRAME) { bc_f(1, color_space); bc_f(1, clamping_type); } bc_f(1, segmentation_enable); if (current->segmentation_enable) CHECK(FUNC(update_segmentation)(ctx, bool_coding_rw, current)); bc_f(1, loop_filter_type); bc_f(6, loop_filter_level); bc_f(3, loop_filter_sharpness); CHECK(FUNC(mode_ref_lf_deltas)(ctx, bool_coding_rw, current)); bc_f(2, log2_token_partitions); CHECK(FUNC(quantization_params)(ctx, bool_coding_rw, current)); if (current->frame_type != VP8_KEY_FRAME) { bc_f(1, refresh_golden_frame); bc_f(1, refresh_alternate_frame); if (!current->refresh_golden_frame) bc_f(2, copy_buffer_to_golden); if (!current->refresh_alternate_frame) bc_f(2, copy_buffer_to_alternate); bc_f(1, ref_frame_sign_bias_golden); bc_f(1, ref_frame_sign_bias_alternate); } bc_f(1, refresh_entropy_probs); if (current->frame_type != VP8_KEY_FRAME) bc_f(1, refresh_last_frame); CHECK(FUNC(update_token_probs)(ctx, bool_coding_rw, current)); bc_f(1, mb_no_skip_coeff); if (current->mb_no_skip_coeff) bc_f(8, prob_skip_false); if (current->frame_type != VP8_KEY_FRAME) { bc_f(8, prob_intra); bc_f(8, prob_last); bc_f(8, prob_golden); // intra_16x16_prob bc_b(intra_16x16_prob_update); if (current->intra_16x16_prob_update) for (int i = 0; i < 4; i++) bc_fs(8, intra_16x16_prob[i], 1, i); // intra_chroma_prob bc_b(intra_chrome_prob_update); if (current->intra_chrome_prob_update) for (int i = 0; i < 3; i++) bc_fs(8, intra_chrome_prob[i], 1, i); CHECK(FUNC(update_mv_probs)(ctx, bool_coding_rw, current)); } return 0; } static int FUNC(uncompressed_header)(CodedBitstreamContext *ctx, RWContext *rw, VP8RawFrame *current) { HEADER("Frame"); CHECK(FUNC(frame_tag)(ctx, rw, ¤t->header)); return 0; } static int FUNC(compressed_header)(CodedBitstreamContext *ctx, CBSVP8BoolCodingRW *bool_coding_rw, VP8RawFrame *current) { CHECK(FUNC(frame_header)(ctx, bool_coding_rw, ¤t->header)); return 0; }