| /* |
| * Copyright (c) 2016, Alliance for Open Media. All rights reserved. |
| * |
| * This source code is subject to the terms of the BSD 2 Clause License and |
| * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License |
| * was not distributed with this source code in the LICENSE file, you can |
| * obtain it at www.aomedia.org/license/software. If the Alliance for Open |
| * Media Patent License 1.0 was not distributed with this source code in the |
| * PATENTS file, you can obtain it at www.aomedia.org/license/patent. |
| */ |
| |
| #include "av1/common/timing.h" |
| |
| /* Tables for AV1 max bitrates for different levels of main and high tier. |
| * The tables are in Kbps instead of Mbps in the specification. |
| * Note that depending on the profile, a multiplier is needed. |
| */ |
| #define UNDEFINED_RATE \ |
| (1 << 21) // Placeholder rate for levels with undefined rate |
| #define INVALID_RATE \ |
| (0) // For invalid profile-level configuration, set rate to 0 |
| |
| /* Max Bitrates for levels of Main Tier in kbps. Bitrate in main_kbps [31] */ |
| /* is a dummy value. The decoder model is not applicable for level 31. */ |
| static int32_t main_kbps[1 << LEVEL_BITS] = { |
| 1500, 3000, UNDEFINED_RATE, UNDEFINED_RATE, |
| 6000, 10000, UNDEFINED_RATE, UNDEFINED_RATE, |
| 12000, 20000, UNDEFINED_RATE, UNDEFINED_RATE, |
| 30000, 40000, 60000, 60000, |
| 60000, 100000, 160000, 160000, |
| UNDEFINED_RATE, UNDEFINED_RATE, UNDEFINED_RATE, UNDEFINED_RATE, |
| UNDEFINED_RATE, UNDEFINED_RATE, UNDEFINED_RATE, UNDEFINED_RATE, |
| UNDEFINED_RATE, UNDEFINED_RATE, UNDEFINED_RATE, UNDEFINED_RATE |
| }; |
| |
| /* Max Bitrates for levels of High Tier in kbps. Bitrate in high_kbps [31] */ |
| /* is a dummy value. The decoder model is not applicable for level 31. */ |
| static int32_t high_kbps[1 << LEVEL_BITS] = { |
| INVALID_RATE, INVALID_RATE, INVALID_RATE, INVALID_RATE, |
| INVALID_RATE, INVALID_RATE, INVALID_RATE, INVALID_RATE, |
| 30000, 50000, UNDEFINED_RATE, UNDEFINED_RATE, |
| 100000, 160000, 240000, 240000, |
| 240000, 480000, 800000, 800000, |
| UNDEFINED_RATE, UNDEFINED_RATE, UNDEFINED_RATE, UNDEFINED_RATE, |
| UNDEFINED_RATE, UNDEFINED_RATE, UNDEFINED_RATE, UNDEFINED_RATE, |
| UNDEFINED_RATE, UNDEFINED_RATE, UNDEFINED_RATE, UNDEFINED_RATE |
| }; |
| |
| /* BitrateProfileFactor */ |
| static int bitrate_profile_factor[1 << PROFILE_BITS] = { |
| 1, 2, 3, 0, 0, 0, 0, 0 |
| }; |
| |
| int64_t av1_max_level_bitrate(BITSTREAM_PROFILE seq_profile, int seq_level_idx, |
| int seq_tier) { |
| int64_t bitrate; |
| |
| if (seq_tier) { |
| bitrate = high_kbps[seq_level_idx] * bitrate_profile_factor[seq_profile]; |
| } else { |
| bitrate = main_kbps[seq_level_idx] * bitrate_profile_factor[seq_profile]; |
| } |
| |
| return bitrate * 1000; |
| } |
| |
| void av1_set_aom_dec_model_info(aom_dec_model_info_t *decoder_model) { |
| decoder_model->encoder_decoder_buffer_delay_length = 16; |
| decoder_model->buffer_removal_time_length = 10; |
| decoder_model->frame_presentation_time_length = 10; |
| } |
| |
| void av1_set_dec_model_op_parameters(aom_dec_model_op_parameters_t *op_params) { |
| op_params->decoder_model_param_present_flag = 1; |
| op_params->decoder_buffer_delay = 90000 >> 1; // 0.5 s |
| op_params->encoder_buffer_delay = 90000 >> 1; // 0.5 s |
| op_params->low_delay_mode_flag = 0; |
| op_params->display_model_param_present_flag = 1; |
| op_params->initial_display_delay = 8; // 8 frames delay |
| } |
| |
| void av1_set_resource_availability_parameters( |
| aom_dec_model_op_parameters_t *op_params) { |
| op_params->decoder_model_param_present_flag = 0; |
| op_params->decoder_buffer_delay = |
| 70000; // Resource availability mode default |
| op_params->encoder_buffer_delay = |
| 20000; // Resource availability mode default |
| op_params->low_delay_mode_flag = 0; // Resource availability mode default |
| op_params->display_model_param_present_flag = 1; |
| op_params->initial_display_delay = 8; // 8 frames delay |
| } |