/****************************************************************************** * * * Copyright (C) 2023 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at: * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * ***************************************************************************** * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore */ #include "ixheaac_type_def.h" #include "ixheaac_constants.h" #include "ixheaac_error_standards.h" #include "ixheaace_error_codes.h" #include "ixheaac_basic_ops32.h" #include "ixheaac_basic_ops40.h" #include "ixheaac_basic_ops.h" #include "ixheaace_mps_common_define.h" #include "ixheaace_mps_defines.h" #include "ixheaace_mps_delay.h" #include "ixheaace_mps_common_fix.h" VOID ixheaace_mps_212_delay_sub_calculate_buffer_delays(ixheaace_mps_pstr_delay pstr_delay) { WORD32 num_encoder_an_delay, num_encoder_win_delay, num_decoder_an_delay, num_decoder_syn_delay, num_residual_coder_frame_delay, num_arb_dmx_residual_coder_frame_delay; WORD32 temp_delay_1, temp_delay_2, temp_delay_12, temp_delay_3; if (pstr_delay->delay_config.b_sac_time_alignment_dynamic_out > 0) { pstr_delay->delay_config.n_sac_time_alignment = 0; } num_encoder_an_delay = 2 * pstr_delay->delay_config.num_qmf_len + pstr_delay->delay_config.num_qmf_len / 2; num_decoder_an_delay = 2 * pstr_delay->delay_config.num_qmf_len + pstr_delay->delay_config.num_qmf_len / 2; num_decoder_syn_delay = 1 * pstr_delay->delay_config.num_qmf_len + pstr_delay->delay_config.num_qmf_len / 2; num_encoder_win_delay = pstr_delay->delay_config.num_frame_len / 2; num_residual_coder_frame_delay = 0; num_arb_dmx_residual_coder_frame_delay = 0; temp_delay_1 = pstr_delay->delay_config.n_arb_dmx_delay - pstr_delay->delay_config.n_surround_delay; if (temp_delay_1 >= 0) { pstr_delay->num_surround_analysis_buffer = temp_delay_1; pstr_delay->num_arb_dmx_analysis_buffer = 0; } else { pstr_delay->num_surround_analysis_buffer = 0; pstr_delay->num_arb_dmx_analysis_buffer = -temp_delay_1; } temp_delay_1 = num_encoder_win_delay + pstr_delay->delay_config.n_surround_delay + pstr_delay->num_surround_analysis_buffer + num_encoder_an_delay; temp_delay_2 = num_encoder_win_delay + pstr_delay->delay_config.n_arb_dmx_delay + pstr_delay->num_arb_dmx_analysis_buffer + num_encoder_an_delay; temp_delay_3 = pstr_delay->delay_config.n_arb_dmx_delay + pstr_delay->delay_config.n_limiter_delay + pstr_delay->delay_config.num_core_coder_delay + pstr_delay->delay_config.n_sac_time_alignment + num_decoder_an_delay; temp_delay_12 = MAX(num_residual_coder_frame_delay, num_arb_dmx_residual_coder_frame_delay) * pstr_delay->delay_config.num_frame_len; temp_delay_12 += pstr_delay->delay_config.num_sac_stream_mux_delay; if (temp_delay_1 > temp_delay_2) { temp_delay_12 += temp_delay_1; } else { temp_delay_12 += temp_delay_2; } if (temp_delay_3 > temp_delay_12) { if (pstr_delay->delay_config.b_minimize_delay > 0) { pstr_delay->num_bitstream_frame_buffer = (temp_delay_3 - temp_delay_12) / pstr_delay->delay_config.num_frame_len; pstr_delay->num_output_audio_buffer = 0; pstr_delay->num_surround_analysis_buffer += (temp_delay_3 - temp_delay_12 - (pstr_delay->num_bitstream_frame_buffer * pstr_delay->delay_config.num_frame_len)); pstr_delay->num_arb_dmx_analysis_buffer += (temp_delay_3 - temp_delay_12 - (pstr_delay->num_bitstream_frame_buffer * pstr_delay->delay_config.num_frame_len)); } else { pstr_delay->num_bitstream_frame_buffer = ((temp_delay_3 - temp_delay_12) + pstr_delay->delay_config.num_frame_len - 1) / pstr_delay->delay_config.num_frame_len; pstr_delay->num_output_audio_buffer = pstr_delay->num_bitstream_frame_buffer * pstr_delay->delay_config.num_frame_len + temp_delay_12 - temp_delay_3; } } else { pstr_delay->num_bitstream_frame_buffer = 0; pstr_delay->num_output_audio_buffer = temp_delay_12 - temp_delay_3; } if (pstr_delay->delay_config.b_dmx_align > 0) { WORD32 temp_delay = pstr_delay->delay_config.n_arb_dmx_delay + pstr_delay->num_output_audio_buffer + pstr_delay->delay_config.n_limiter_delay + pstr_delay->delay_config.num_core_coder_delay; pstr_delay->num_discard_out_frames = (temp_delay + pstr_delay->delay_config.num_frame_len - 1) / pstr_delay->delay_config.num_frame_len; pstr_delay->num_dmx_align_buffer = pstr_delay->num_discard_out_frames * pstr_delay->delay_config.num_frame_len - temp_delay; } else { pstr_delay->num_discard_out_frames = 0; pstr_delay->num_dmx_align_buffer = 0; } pstr_delay->num_info_dmx_delay = pstr_delay->delay_config.n_arb_dmx_delay + pstr_delay->num_output_audio_buffer + pstr_delay->delay_config.n_limiter_delay; pstr_delay->num_info_codec_delay = pstr_delay->num_info_dmx_delay + pstr_delay->delay_config.num_core_coder_delay + pstr_delay->delay_config.n_sac_time_alignment + num_decoder_an_delay + num_decoder_syn_delay; pstr_delay->num_info_decoder_delay = num_decoder_an_delay + num_decoder_syn_delay; pstr_delay->num_bitstream_frame_buffer_size = pstr_delay->num_bitstream_frame_buffer + 1; }