| /* |
| * Copyright (c) 2019, 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 "aom_ports/system_state.h" |
| |
| #include "av1/encoder/encoder.h" |
| #include "av1/encoder/level.h" |
| |
| #define UNDEFINED_LEVEL \ |
| { \ |
| .level = SEQ_LEVEL_MAX, .max_picture_size = 0, .max_h_size = 0, \ |
| .max_v_size = 0, .max_display_rate = 0, .max_decode_rate = 0, \ |
| .max_header_rate = 0, .main_mbps = 0, .high_mbps = 0, .main_cr = 0, \ |
| .high_cr = 0, .max_tiles = 0, .max_tile_cols = 0 \ |
| } |
| |
| static const AV1LevelSpec av1_level_defs[SEQ_LEVELS] = { |
| { .level = SEQ_LEVEL_2_0, |
| .max_picture_size = 147456, |
| .max_h_size = 2048, |
| .max_v_size = 1152, |
| .max_display_rate = 4423680L, |
| .max_decode_rate = 5529600L, |
| .max_header_rate = 150, |
| .main_mbps = 1.5, |
| .high_mbps = 0, |
| .main_cr = 2.0, |
| .high_cr = 0, |
| .max_tiles = 8, |
| .max_tile_cols = 4 }, |
| { .level = SEQ_LEVEL_2_1, |
| .max_picture_size = 278784, |
| .max_h_size = 2816, |
| .max_v_size = 1584, |
| .max_display_rate = 8363520L, |
| .max_decode_rate = 10454400L, |
| .max_header_rate = 150, |
| .main_mbps = 3.0, |
| .high_mbps = 0, |
| .main_cr = 2.0, |
| .high_cr = 0, |
| .max_tiles = 8, |
| .max_tile_cols = 4 }, |
| UNDEFINED_LEVEL, |
| UNDEFINED_LEVEL, |
| { .level = SEQ_LEVEL_3_0, |
| .max_picture_size = 665856, |
| .max_h_size = 4352, |
| .max_v_size = 2448, |
| .max_display_rate = 19975680L, |
| .max_decode_rate = 24969600L, |
| .max_header_rate = 150, |
| .main_mbps = 6.0, |
| .high_mbps = 0, |
| .main_cr = 2.0, |
| .high_cr = 0, |
| .max_tiles = 16, |
| .max_tile_cols = 6 }, |
| { .level = SEQ_LEVEL_3_1, |
| .max_picture_size = 1065024, |
| .max_h_size = 5504, |
| .max_v_size = 3096, |
| .max_display_rate = 31950720L, |
| .max_decode_rate = 39938400L, |
| .max_header_rate = 150, |
| .main_mbps = 10.0, |
| .high_mbps = 0, |
| .main_cr = 2.0, |
| .high_cr = 0, |
| .max_tiles = 16, |
| .max_tile_cols = 6 }, |
| UNDEFINED_LEVEL, |
| UNDEFINED_LEVEL, |
| { .level = SEQ_LEVEL_4_0, |
| .max_picture_size = 2359296, |
| .max_h_size = 6144, |
| .max_v_size = 3456, |
| .max_display_rate = 70778880L, |
| .max_decode_rate = 77856768L, |
| .max_header_rate = 300, |
| .main_mbps = 12.0, |
| .high_mbps = 30.0, |
| .main_cr = 4.0, |
| .high_cr = 4.0, |
| .max_tiles = 32, |
| .max_tile_cols = 8 }, |
| { .level = SEQ_LEVEL_4_1, |
| .max_picture_size = 2359296, |
| .max_h_size = 6144, |
| .max_v_size = 3456, |
| .max_display_rate = 141557760L, |
| .max_decode_rate = 155713536L, |
| .max_header_rate = 300, |
| .main_mbps = 20.0, |
| .high_mbps = 50.0, |
| .main_cr = 4.0, |
| .high_cr = 4.0, |
| .max_tiles = 32, |
| .max_tile_cols = 8 }, |
| UNDEFINED_LEVEL, |
| UNDEFINED_LEVEL, |
| { .level = SEQ_LEVEL_5_0, |
| .max_picture_size = 8912896, |
| .max_h_size = 8192, |
| .max_v_size = 4352, |
| .max_display_rate = 267386880L, |
| .max_decode_rate = 273715200L, |
| .max_header_rate = 300, |
| .main_mbps = 30.0, |
| .high_mbps = 100.0, |
| .main_cr = 6.0, |
| .high_cr = 4.0, |
| .max_tiles = 64, |
| .max_tile_cols = 8 }, |
| { .level = SEQ_LEVEL_5_1, |
| .max_picture_size = 8912896, |
| .max_h_size = 8192, |
| .max_v_size = 4352, |
| .max_display_rate = 534773760L, |
| .max_decode_rate = 547430400L, |
| .max_header_rate = 300, |
| .main_mbps = 40.0, |
| .high_mbps = 160.0, |
| .main_cr = 8.0, |
| .high_cr = 4.0, |
| .max_tiles = 64, |
| .max_tile_cols = 8 }, |
| { .level = SEQ_LEVEL_5_2, |
| .max_picture_size = 8912896, |
| .max_h_size = 8192, |
| .max_v_size = 4352, |
| .max_display_rate = 1069547520L, |
| .max_decode_rate = 1094860800L, |
| .max_header_rate = 300, |
| .main_mbps = 60.0, |
| .high_mbps = 240.0, |
| .main_cr = 8.0, |
| .high_cr = 4.0, |
| .max_tiles = 64, |
| .max_tile_cols = 8 }, |
| { .level = SEQ_LEVEL_5_3, |
| .max_picture_size = 8912896, |
| .max_h_size = 8192, |
| .max_v_size = 4352, |
| .max_display_rate = 1069547520L, |
| .max_decode_rate = 1176502272L, |
| .max_header_rate = 300, |
| .main_mbps = 60.0, |
| .high_mbps = 240.0, |
| .main_cr = 8.0, |
| .high_cr = 4.0, |
| .max_tiles = 64, |
| .max_tile_cols = 8 }, |
| { .level = SEQ_LEVEL_6_0, |
| .max_picture_size = 35651584, |
| .max_h_size = 16384, |
| .max_v_size = 8704, |
| .max_display_rate = 1069547520L, |
| .max_decode_rate = 1176502272L, |
| .max_header_rate = 300, |
| .main_mbps = 60.0, |
| .high_mbps = 240.0, |
| .main_cr = 8.0, |
| .high_cr = 4.0, |
| .max_tiles = 128, |
| .max_tile_cols = 16 }, |
| { .level = SEQ_LEVEL_6_1, |
| .max_picture_size = 35651584, |
| .max_h_size = 16384, |
| .max_v_size = 8704, |
| .max_display_rate = 2139095040L, |
| .max_decode_rate = 2189721600L, |
| .max_header_rate = 300, |
| .main_mbps = 100.0, |
| .high_mbps = 480.0, |
| .main_cr = 8.0, |
| .high_cr = 4.0, |
| .max_tiles = 128, |
| .max_tile_cols = 16 }, |
| { .level = SEQ_LEVEL_6_2, |
| .max_picture_size = 35651584, |
| .max_h_size = 16384, |
| .max_v_size = 8704, |
| .max_display_rate = 4278190080L, |
| .max_decode_rate = 4379443200L, |
| .max_header_rate = 300, |
| .main_mbps = 160.0, |
| .high_mbps = 800.0, |
| .main_cr = 8.0, |
| .high_cr = 4.0, |
| .max_tiles = 128, |
| .max_tile_cols = 16 }, |
| { .level = SEQ_LEVEL_6_3, |
| .max_picture_size = 35651584, |
| .max_h_size = 16384, |
| .max_v_size = 8704, |
| .max_display_rate = 4278190080L, |
| .max_decode_rate = 4706009088L, |
| .max_header_rate = 300, |
| .main_mbps = 160.0, |
| .high_mbps = 800.0, |
| .main_cr = 8.0, |
| .high_cr = 4.0, |
| .max_tiles = 128, |
| .max_tile_cols = 16 }, |
| UNDEFINED_LEVEL, |
| UNDEFINED_LEVEL, |
| UNDEFINED_LEVEL, |
| UNDEFINED_LEVEL, |
| }; |
| |
| typedef enum { |
| LUMA_PIC_SIZE_TOO_LARGE, |
| LUMA_PIC_H_SIZE_TOO_LARGE, |
| LUMA_PIC_V_SIZE_TOO_LARGE, |
| LUMA_PIC_H_SIZE_TOO_SMALL, |
| LUMA_PIC_V_SIZE_TOO_SMALL, |
| TOO_MANY_TILE_COLUMNS, |
| TOO_MANY_TILES, |
| TILE_RATE_TOO_HIGH, |
| TILE_TOO_LARGE, |
| SUPERRES_TILE_WIDTH_TOO_LARGE, |
| CROPPED_TILE_WIDTH_TOO_SMALL, |
| CROPPED_TILE_HEIGHT_TOO_SMALL, |
| TILE_WIDTH_INVALID, |
| FRAME_HEADER_RATE_TOO_HIGH, |
| DISPLAY_RATE_TOO_HIGH, |
| DECODE_RATE_TOO_HIGH, |
| CR_TOO_SMALL, |
| TILE_SIZE_HEADER_RATE_TOO_HIGH, |
| BITRATE_TOO_HIGH, |
| DECODER_MODEL_FAIL, |
| |
| TARGET_LEVEL_FAIL_IDS, |
| TARGET_LEVEL_OK, |
| } TARGET_LEVEL_FAIL_ID; |
| |
| static const char *level_fail_messages[TARGET_LEVEL_FAIL_IDS] = { |
| "The picture size is too large.", |
| "The picture width is too large.", |
| "The picture height is too large.", |
| "The picture width is too small.", |
| "The picture height is too small.", |
| "Too many tile columns are used.", |
| "Too many tiles are used.", |
| "The tile rate is too high.", |
| "The tile size is too large.", |
| "The superres tile width is too large.", |
| "The cropped tile width is less than 8.", |
| "The cropped tile height is less than 8.", |
| "The tile width is invalid.", |
| "The frame header rate is too high.", |
| "The display luma sample rate is too high.", |
| "The decoded luma sample rate is too high.", |
| "The compression ratio is too small.", |
| "The product of max tile size and header rate is too high.", |
| "The bitrate is too high.", |
| "The decoder model fails.", |
| }; |
| |
| static double get_max_bitrate(const AV1LevelSpec *const level_spec, int tier, |
| BITSTREAM_PROFILE profile) { |
| if (level_spec->level < SEQ_LEVEL_4_0) tier = 0; |
| const double bitrate_basis = |
| (tier ? level_spec->high_mbps : level_spec->main_mbps) * 1e6; |
| const double bitrate_profile_factor = |
| profile == PROFILE_0 ? 1.0 : (profile == PROFILE_1 ? 2.0 : 3.0); |
| return bitrate_basis * bitrate_profile_factor; |
| } |
| |
| double av1_get_max_bitrate_for_level(AV1_LEVEL level_index, int tier, |
| BITSTREAM_PROFILE profile) { |
| assert(is_valid_seq_level_idx(level_index)); |
| return get_max_bitrate(&av1_level_defs[level_index], tier, profile); |
| } |
| |
| void av1_get_max_tiles_for_level(AV1_LEVEL level_index, int *const max_tiles, |
| int *const max_tile_cols) { |
| assert(is_valid_seq_level_idx(level_index)); |
| const AV1LevelSpec *const level_spec = &av1_level_defs[level_index]; |
| *max_tiles = level_spec->max_tiles; |
| *max_tile_cols = level_spec->max_tile_cols; |
| } |
| |
| // We assume time t to be valid if and only if t >= 0.0. |
| // So INVALID_TIME can be defined as anything less than 0. |
| #define INVALID_TIME (-1.0) |
| |
| // This corresponds to "free_buffer" in the spec. |
| static void release_buffer(DECODER_MODEL *const decoder_model, int idx) { |
| assert(idx >= 0 && idx < BUFFER_POOL_MAX_SIZE); |
| FRAME_BUFFER *const this_buffer = &decoder_model->frame_buffer_pool[idx]; |
| this_buffer->decoder_ref_count = 0; |
| this_buffer->player_ref_count = 0; |
| this_buffer->display_index = -1; |
| this_buffer->presentation_time = INVALID_TIME; |
| } |
| |
| static void initialize_buffer_pool(DECODER_MODEL *const decoder_model) { |
| for (int i = 0; i < BUFFER_POOL_MAX_SIZE; ++i) { |
| release_buffer(decoder_model, i); |
| } |
| for (int i = 0; i < REF_FRAMES; ++i) { |
| decoder_model->vbi[i] = -1; |
| } |
| } |
| |
| static int get_free_buffer(DECODER_MODEL *const decoder_model) { |
| for (int i = 0; i < BUFFER_POOL_MAX_SIZE; ++i) { |
| const FRAME_BUFFER *const this_buffer = |
| &decoder_model->frame_buffer_pool[i]; |
| if (this_buffer->decoder_ref_count == 0 && |
| this_buffer->player_ref_count == 0) |
| return i; |
| } |
| return -1; |
| } |
| |
| static void update_ref_buffers(DECODER_MODEL *const decoder_model, int idx, |
| int refresh_frame_flags) { |
| FRAME_BUFFER *const this_buffer = &decoder_model->frame_buffer_pool[idx]; |
| for (int i = 0; i < REF_FRAMES; ++i) { |
| if (refresh_frame_flags & (1 << i)) { |
| const int pre_idx = decoder_model->vbi[i]; |
| if (pre_idx != -1) { |
| --decoder_model->frame_buffer_pool[pre_idx].decoder_ref_count; |
| } |
| decoder_model->vbi[i] = idx; |
| ++this_buffer->decoder_ref_count; |
| } |
| } |
| } |
| |
| // The time (in seconds) required to decode a frame. |
| static double time_to_decode_frame(const AV1_COMMON *const cm, |
| int64_t max_decode_rate) { |
| if (cm->show_existing_frame) return 0.0; |
| |
| const FRAME_TYPE frame_type = cm->current_frame.frame_type; |
| int luma_samples = 0; |
| if (frame_type == KEY_FRAME || frame_type == INTRA_ONLY_FRAME) { |
| luma_samples = cm->superres_upscaled_width * cm->height; |
| } else { |
| const int spatial_layer_dimensions_present_flag = 0; |
| if (spatial_layer_dimensions_present_flag) { |
| assert(0 && "Spatial layer dimensions not supported yet."); |
| } else { |
| const SequenceHeader *const seq_params = &cm->seq_params; |
| const int max_frame_width = seq_params->max_frame_width; |
| const int max_frame_height = seq_params->max_frame_height; |
| luma_samples = max_frame_width * max_frame_height; |
| } |
| } |
| |
| return luma_samples / (double)max_decode_rate; |
| } |
| |
| // Release frame buffers that are no longer needed for decode or display. |
| // It corresponds to "start_decode_at_removal_time" in the spec. |
| static void release_processed_frames(DECODER_MODEL *const decoder_model, |
| double removal_time) { |
| for (int i = 0; i < BUFFER_POOL_MAX_SIZE; ++i) { |
| FRAME_BUFFER *const this_buffer = &decoder_model->frame_buffer_pool[i]; |
| if (this_buffer->player_ref_count > 0) { |
| if (this_buffer->presentation_time >= 0.0 && |
| this_buffer->presentation_time <= removal_time) { |
| this_buffer->player_ref_count = 0; |
| if (this_buffer->decoder_ref_count == 0) { |
| release_buffer(decoder_model, i); |
| } |
| } |
| } |
| } |
| } |
| |
| static int frames_in_buffer_pool(const DECODER_MODEL *const decoder_model) { |
| int frames_in_pool = 0; |
| for (int i = 0; i < BUFFER_POOL_MAX_SIZE; ++i) { |
| const FRAME_BUFFER *const this_buffer = |
| &decoder_model->frame_buffer_pool[i]; |
| if (this_buffer->decoder_ref_count > 0 || |
| this_buffer->player_ref_count > 0) { |
| ++frames_in_pool; |
| } |
| } |
| return frames_in_pool; |
| } |
| |
| static double get_presentation_time(const DECODER_MODEL *const decoder_model, |
| int display_index) { |
| if (decoder_model->mode == SCHEDULE_MODE) { |
| assert(0 && "SCHEDULE_MODE NOT SUPPORTED"); |
| return INVALID_TIME; |
| } else { |
| const double initial_presentation_delay = |
| decoder_model->initial_presentation_delay; |
| // Can't decide presentation time until the initial presentation delay is |
| // known. |
| if (initial_presentation_delay < 0.0) return INVALID_TIME; |
| |
| return initial_presentation_delay + |
| display_index * decoder_model->num_ticks_per_picture * |
| decoder_model->display_clock_tick; |
| } |
| } |
| |
| #define MAX_TIME 1e16 |
| double time_next_buffer_is_free(const DECODER_MODEL *const decoder_model) { |
| if (decoder_model->num_decoded_frame == 0) { |
| return (double)decoder_model->decoder_buffer_delay / 90000.0; |
| } |
| |
| double buf_free_time = MAX_TIME; |
| for (int i = 0; i < BUFFER_POOL_MAX_SIZE; ++i) { |
| const FRAME_BUFFER *const this_buffer = |
| &decoder_model->frame_buffer_pool[i]; |
| if (this_buffer->decoder_ref_count == 0) { |
| if (this_buffer->player_ref_count == 0) { |
| return decoder_model->current_time; |
| } |
| const double presentation_time = this_buffer->presentation_time; |
| if (presentation_time >= 0.0 && presentation_time < buf_free_time) { |
| buf_free_time = presentation_time; |
| } |
| } |
| } |
| return buf_free_time < MAX_TIME ? buf_free_time : INVALID_TIME; |
| } |
| #undef MAX_TIME |
| |
| static double get_removal_time(const DECODER_MODEL *const decoder_model) { |
| if (decoder_model->mode == SCHEDULE_MODE) { |
| assert(0 && "SCHEDULE_MODE IS NOT SUPPORTED YET"); |
| return INVALID_TIME; |
| } else { |
| return time_next_buffer_is_free(decoder_model); |
| } |
| } |
| |
| void av1_decoder_model_print_status(const DECODER_MODEL *const decoder_model) { |
| printf( |
| "\n status %d, num_frame %3d, num_decoded_frame %3d, " |
| "num_shown_frame %3d, current time %6.2f, frames in buffer %2d, " |
| "presentation delay %6.2f, total interval %6.2f\n", |
| decoder_model->status, decoder_model->num_frame, |
| decoder_model->num_decoded_frame, decoder_model->num_shown_frame, |
| decoder_model->current_time, frames_in_buffer_pool(decoder_model), |
| decoder_model->initial_presentation_delay, |
| decoder_model->dfg_interval_queue.total_interval); |
| for (int i = 0; i < 10; ++i) { |
| const FRAME_BUFFER *const this_buffer = |
| &decoder_model->frame_buffer_pool[i]; |
| printf("buffer %d, decode count %d, display count %d, present time %6.4f\n", |
| i, this_buffer->decoder_ref_count, this_buffer->player_ref_count, |
| this_buffer->presentation_time); |
| } |
| } |
| |
| // op_index is the operating point index. |
| void av1_decoder_model_init(const AV1_COMP *const cpi, AV1_LEVEL level, |
| int op_index, DECODER_MODEL *const decoder_model) { |
| aom_clear_system_state(); |
| |
| decoder_model->status = DECODER_MODEL_OK; |
| decoder_model->level = level; |
| |
| const AV1_COMMON *const cm = &cpi->common; |
| const SequenceHeader *const seq_params = &cm->seq_params; |
| decoder_model->bit_rate = get_max_bitrate( |
| av1_level_defs + level, seq_params->tier[op_index], seq_params->profile); |
| |
| // TODO(huisu or anyone): implement SCHEDULE_MODE. |
| decoder_model->mode = RESOURCE_MODE; |
| decoder_model->encoder_buffer_delay = 20000; |
| decoder_model->decoder_buffer_delay = 70000; |
| decoder_model->is_low_delay_mode = false; |
| |
| decoder_model->first_bit_arrival_time = 0.0; |
| decoder_model->last_bit_arrival_time = 0.0; |
| decoder_model->coded_bits = 0; |
| |
| decoder_model->removal_time = INVALID_TIME; |
| decoder_model->presentation_time = INVALID_TIME; |
| decoder_model->decode_samples = 0; |
| decoder_model->display_samples = 0; |
| decoder_model->max_decode_rate = 0.0; |
| decoder_model->max_display_rate = 0.0; |
| |
| decoder_model->num_frame = -1; |
| decoder_model->num_decoded_frame = -1; |
| decoder_model->num_shown_frame = -1; |
| decoder_model->current_time = 0.0; |
| |
| initialize_buffer_pool(decoder_model); |
| |
| DFG_INTERVAL_QUEUE *const dfg_interval_queue = |
| &decoder_model->dfg_interval_queue; |
| dfg_interval_queue->total_interval = 0.0; |
| dfg_interval_queue->head = 0; |
| dfg_interval_queue->size = 0; |
| |
| if (seq_params->timing_info_present) { |
| decoder_model->num_ticks_per_picture = |
| seq_params->timing_info.num_ticks_per_picture; |
| decoder_model->display_clock_tick = |
| seq_params->timing_info.num_units_in_display_tick / |
| seq_params->timing_info.time_scale; |
| } else { |
| decoder_model->num_ticks_per_picture = 1; |
| decoder_model->display_clock_tick = 1.0 / cpi->framerate; |
| } |
| |
| decoder_model->initial_display_delay = |
| seq_params->op_params[op_index].initial_display_delay; |
| decoder_model->initial_presentation_delay = INVALID_TIME; |
| decoder_model->decode_rate = av1_level_defs[level].max_decode_rate; |
| } |
| |
| void av1_decoder_model_process_frame(const AV1_COMP *const cpi, |
| size_t coded_bits, |
| DECODER_MODEL *const decoder_model) { |
| if (!decoder_model || decoder_model->status != DECODER_MODEL_OK) return; |
| |
| aom_clear_system_state(); |
| |
| const AV1_COMMON *const cm = &cpi->common; |
| const int luma_pic_size = cm->superres_upscaled_width * cm->height; |
| const int show_existing_frame = cm->show_existing_frame; |
| const int show_frame = cm->show_frame || show_existing_frame; |
| ++decoder_model->num_frame; |
| if (!show_existing_frame) ++decoder_model->num_decoded_frame; |
| if (show_frame) ++decoder_model->num_shown_frame; |
| decoder_model->coded_bits += coded_bits; |
| |
| int display_idx = -1; |
| if (show_existing_frame) { |
| display_idx = decoder_model->vbi[cpi->existing_fb_idx_to_show]; |
| if (display_idx < 0) { |
| decoder_model->status = DECODE_EXISTING_FRAME_BUF_EMPTY; |
| return; |
| } |
| if (decoder_model->frame_buffer_pool[display_idx].frame_type == KEY_FRAME) { |
| update_ref_buffers(decoder_model, display_idx, 0xFF); |
| } |
| } else { |
| const double removal_time = get_removal_time(decoder_model); |
| if (removal_time < 0.0) { |
| decoder_model->status = DECODE_FRAME_BUF_UNAVAILABLE; |
| return; |
| } |
| |
| const int previous_decode_samples = decoder_model->decode_samples; |
| const double previous_removal_time = decoder_model->removal_time; |
| assert(previous_removal_time < removal_time); |
| decoder_model->removal_time = removal_time; |
| decoder_model->decode_samples = luma_pic_size; |
| const double this_decode_rate = |
| previous_decode_samples / (removal_time - previous_removal_time); |
| decoder_model->max_decode_rate = |
| AOMMAX(decoder_model->max_decode_rate, this_decode_rate); |
| |
| // A frame with show_existing_frame being false indicates the end of a DFG. |
| // Update the bits arrival time of this DFG. |
| const double buffer_delay = (decoder_model->encoder_buffer_delay + |
| decoder_model->decoder_buffer_delay) / |
| 90000.0; |
| const double latest_arrival_time = removal_time - buffer_delay; |
| decoder_model->first_bit_arrival_time = |
| AOMMAX(decoder_model->last_bit_arrival_time, latest_arrival_time); |
| decoder_model->last_bit_arrival_time = |
| decoder_model->first_bit_arrival_time + |
| (double)decoder_model->coded_bits / decoder_model->bit_rate; |
| // Smoothing buffer underflows if the last bit arrives after the removal |
| // time. |
| if (decoder_model->last_bit_arrival_time > removal_time && |
| !decoder_model->is_low_delay_mode) { |
| decoder_model->status = SMOOTHING_BUFFER_UNDERFLOW; |
| return; |
| } |
| // Reset the coded bits for the next DFG. |
| decoder_model->coded_bits = 0; |
| |
| // Check if the smoothing buffer overflows. |
| DFG_INTERVAL_QUEUE *const queue = &decoder_model->dfg_interval_queue; |
| if (queue->size >= DFG_INTERVAL_QUEUE_SIZE) { |
| assert(0); |
| } |
| const double first_bit_arrival_time = decoder_model->first_bit_arrival_time; |
| const double last_bit_arrival_time = decoder_model->last_bit_arrival_time; |
| // Remove the DFGs with removal time earlier than last_bit_arrival_time. |
| while (queue->buf[queue->head].removal_time <= last_bit_arrival_time && |
| queue->size > 0) { |
| if (queue->buf[queue->head].removal_time - first_bit_arrival_time + |
| queue->total_interval > |
| 1.0) { |
| decoder_model->status = SMOOTHING_BUFFER_OVERFLOW; |
| return; |
| } |
| queue->total_interval -= queue->buf[queue->head].last_bit_arrival_time - |
| queue->buf[queue->head].first_bit_arrival_time; |
| queue->head = (queue->head + 1) % DFG_INTERVAL_QUEUE_SIZE; |
| --queue->size; |
| } |
| // Push current DFG into the queue. |
| const int queue_index = |
| (queue->head + queue->size++) % DFG_INTERVAL_QUEUE_SIZE; |
| queue->buf[queue_index].first_bit_arrival_time = first_bit_arrival_time; |
| queue->buf[queue_index].last_bit_arrival_time = last_bit_arrival_time; |
| queue->buf[queue_index].removal_time = removal_time; |
| queue->total_interval += last_bit_arrival_time - first_bit_arrival_time; |
| // The smoothing buffer can hold at most "bit_rate" bits, which is |
| // equivalent to 1 second of total interval. |
| if (queue->total_interval > 1.0) { |
| decoder_model->status = SMOOTHING_BUFFER_OVERFLOW; |
| return; |
| } |
| |
| release_processed_frames(decoder_model, removal_time); |
| decoder_model->current_time = |
| removal_time + time_to_decode_frame(cm, decoder_model->decode_rate); |
| |
| const int cfbi = get_free_buffer(decoder_model); |
| if (cfbi < 0) { |
| decoder_model->status = DECODE_FRAME_BUF_UNAVAILABLE; |
| return; |
| } |
| const CurrentFrame *const current_frame = &cm->current_frame; |
| decoder_model->frame_buffer_pool[cfbi].frame_type = |
| cm->current_frame.frame_type; |
| display_idx = cfbi; |
| update_ref_buffers(decoder_model, cfbi, current_frame->refresh_frame_flags); |
| |
| if (decoder_model->initial_presentation_delay < 0.0) { |
| // Display can begin after required number of frames have been buffered. |
| if (frames_in_buffer_pool(decoder_model) >= |
| decoder_model->initial_display_delay) { |
| decoder_model->initial_presentation_delay = decoder_model->current_time; |
| // Update presentation time for each shown frame in the frame buffer. |
| for (int i = 0; i < BUFFER_POOL_MAX_SIZE; ++i) { |
| FRAME_BUFFER *const this_buffer = |
| &decoder_model->frame_buffer_pool[i]; |
| if (this_buffer->player_ref_count == 0) continue; |
| assert(this_buffer->display_index >= 0); |
| this_buffer->presentation_time = |
| get_presentation_time(decoder_model, this_buffer->display_index); |
| } |
| } |
| } |
| } |
| |
| // Display. |
| if (show_frame) { |
| assert(display_idx >= 0 && display_idx < BUFFER_POOL_MAX_SIZE); |
| FRAME_BUFFER *const this_buffer = |
| &decoder_model->frame_buffer_pool[display_idx]; |
| ++this_buffer->player_ref_count; |
| this_buffer->display_index = decoder_model->num_shown_frame; |
| const double presentation_time = |
| get_presentation_time(decoder_model, this_buffer->display_index); |
| this_buffer->presentation_time = presentation_time; |
| if (presentation_time >= 0.0 && |
| decoder_model->current_time > presentation_time) { |
| decoder_model->status = DISPLAY_FRAME_LATE; |
| return; |
| } |
| |
| const int previous_display_samples = decoder_model->display_samples; |
| const double previous_presentation_time = decoder_model->presentation_time; |
| decoder_model->display_samples = luma_pic_size; |
| decoder_model->presentation_time = presentation_time; |
| if (presentation_time >= 0.0 && previous_presentation_time >= 0.0) { |
| assert(previous_presentation_time < presentation_time); |
| const double this_display_rate = |
| previous_display_samples / |
| (presentation_time - previous_presentation_time); |
| decoder_model->max_display_rate = |
| AOMMAX(decoder_model->max_display_rate, this_display_rate); |
| } |
| } |
| } |
| |
| void av1_init_level_info(AV1_COMP *cpi) { |
| for (int op_index = 0; op_index < MAX_NUM_OPERATING_POINTS; ++op_index) { |
| AV1LevelInfo *const this_level_info = |
| cpi->level_params.level_info[op_index]; |
| if (!this_level_info) continue; |
| memset(this_level_info, 0, sizeof(*this_level_info)); |
| AV1LevelSpec *const level_spec = &this_level_info->level_spec; |
| level_spec->level = SEQ_LEVEL_MAX; |
| AV1LevelStats *const level_stats = &this_level_info->level_stats; |
| level_stats->min_cropped_tile_width = INT_MAX; |
| level_stats->min_cropped_tile_height = INT_MAX; |
| level_stats->min_frame_width = INT_MAX; |
| level_stats->min_frame_height = INT_MAX; |
| level_stats->tile_width_is_valid = 1; |
| level_stats->min_cr = 1e8; |
| |
| FrameWindowBuffer *const frame_window_buffer = |
| &this_level_info->frame_window_buffer; |
| frame_window_buffer->num = 0; |
| frame_window_buffer->start = 0; |
| |
| const AV1_COMMON *const cm = &cpi->common; |
| const int upscaled_width = cm->superres_upscaled_width; |
| const int height = cm->height; |
| const int pic_size = upscaled_width * height; |
| for (AV1_LEVEL level = SEQ_LEVEL_2_0; level < SEQ_LEVELS; ++level) { |
| DECODER_MODEL *const this_model = &this_level_info->decoder_models[level]; |
| const AV1LevelSpec *const spec = &av1_level_defs[level]; |
| if (upscaled_width > spec->max_h_size || height > spec->max_v_size || |
| pic_size > spec->max_picture_size) { |
| // Turn off decoder model for this level as the frame size already |
| // exceeds level constraints. |
| this_model->status = DECODER_MODEL_DISABLED; |
| } else { |
| av1_decoder_model_init(cpi, level, op_index, this_model); |
| } |
| } |
| } |
| } |
| |
| static double get_min_cr(const AV1LevelSpec *const level_spec, int tier, |
| int is_still_picture, int64_t decoded_sample_rate) { |
| if (is_still_picture) return 0.8; |
| if (level_spec->level < SEQ_LEVEL_4_0) tier = 0; |
| const double min_cr_basis = tier ? level_spec->high_cr : level_spec->main_cr; |
| const double speed_adj = |
| (double)decoded_sample_rate / level_spec->max_display_rate; |
| return AOMMAX(min_cr_basis * speed_adj, 0.8); |
| } |
| |
| double av1_get_min_cr_for_level(AV1_LEVEL level_index, int tier, |
| int is_still_picture) { |
| assert(is_valid_seq_level_idx(level_index)); |
| const AV1LevelSpec *const level_spec = &av1_level_defs[level_index]; |
| return get_min_cr(level_spec, tier, is_still_picture, |
| level_spec->max_decode_rate); |
| } |
| |
| static void get_temporal_parallel_params(int scalability_mode_idc, |
| int *temporal_parallel_num, |
| int *temporal_parallel_denom) { |
| if (scalability_mode_idc < 0) { |
| *temporal_parallel_num = 1; |
| *temporal_parallel_denom = 1; |
| return; |
| } |
| |
| // TODO(huisu@): handle scalability cases. |
| if (scalability_mode_idc == SCALABILITY_SS) { |
| (void)scalability_mode_idc; |
| } else { |
| (void)scalability_mode_idc; |
| } |
| } |
| |
| #define MAX_TILE_SIZE (4096 * 2304) |
| #define MIN_CROPPED_TILE_WIDTH 8 |
| #define MIN_CROPPED_TILE_HEIGHT 8 |
| #define MIN_FRAME_WIDTH 16 |
| #define MIN_FRAME_HEIGHT 16 |
| #define MAX_TILE_SIZE_HEADER_RATE_PRODUCT 588251136 |
| |
| static TARGET_LEVEL_FAIL_ID check_level_constraints( |
| const AV1LevelInfo *const level_info, AV1_LEVEL level, int tier, |
| int is_still_picture, BITSTREAM_PROFILE profile, int check_bitrate) { |
| const DECODER_MODEL *const decoder_model = &level_info->decoder_models[level]; |
| const DECODER_MODEL_STATUS decoder_model_status = decoder_model->status; |
| if (decoder_model_status != DECODER_MODEL_OK && |
| decoder_model_status != DECODER_MODEL_DISABLED) { |
| return DECODER_MODEL_FAIL; |
| } |
| |
| const AV1LevelSpec *const level_spec = &level_info->level_spec; |
| const AV1LevelSpec *const target_level_spec = &av1_level_defs[level]; |
| const AV1LevelStats *const level_stats = &level_info->level_stats; |
| TARGET_LEVEL_FAIL_ID fail_id = TARGET_LEVEL_OK; |
| do { |
| if (level_spec->max_picture_size > target_level_spec->max_picture_size) { |
| fail_id = LUMA_PIC_SIZE_TOO_LARGE; |
| break; |
| } |
| |
| if (level_spec->max_h_size > target_level_spec->max_h_size) { |
| fail_id = LUMA_PIC_H_SIZE_TOO_LARGE; |
| break; |
| } |
| |
| if (level_spec->max_v_size > target_level_spec->max_v_size) { |
| fail_id = LUMA_PIC_V_SIZE_TOO_LARGE; |
| break; |
| } |
| |
| if (level_spec->max_tile_cols > target_level_spec->max_tile_cols) { |
| fail_id = TOO_MANY_TILE_COLUMNS; |
| break; |
| } |
| |
| if (level_spec->max_tiles > target_level_spec->max_tiles) { |
| fail_id = TOO_MANY_TILES; |
| break; |
| } |
| |
| if (level_spec->max_header_rate > target_level_spec->max_header_rate) { |
| fail_id = FRAME_HEADER_RATE_TOO_HIGH; |
| break; |
| } |
| |
| if (decoder_model->max_display_rate > |
| (double)target_level_spec->max_display_rate) { |
| fail_id = DISPLAY_RATE_TOO_HIGH; |
| break; |
| } |
| |
| // TODO(huisu): we are not using max decode rate calculated by the decoder |
| // model because the model in resource availability mode always returns |
| // MaxDecodeRate(as in the level definitions) as the max decode rate. |
| if (level_spec->max_decode_rate > target_level_spec->max_decode_rate) { |
| fail_id = DECODE_RATE_TOO_HIGH; |
| break; |
| } |
| |
| if (level_spec->max_tile_rate > target_level_spec->max_tiles * 120) { |
| fail_id = TILE_RATE_TOO_HIGH; |
| break; |
| } |
| |
| if (level_stats->max_tile_size > MAX_TILE_SIZE) { |
| fail_id = TILE_TOO_LARGE; |
| break; |
| } |
| |
| if (level_stats->max_superres_tile_width > MAX_TILE_WIDTH) { |
| fail_id = SUPERRES_TILE_WIDTH_TOO_LARGE; |
| break; |
| } |
| |
| if (level_stats->min_cropped_tile_width < MIN_CROPPED_TILE_WIDTH) { |
| fail_id = CROPPED_TILE_WIDTH_TOO_SMALL; |
| break; |
| } |
| |
| if (level_stats->min_cropped_tile_height < MIN_CROPPED_TILE_HEIGHT) { |
| fail_id = CROPPED_TILE_HEIGHT_TOO_SMALL; |
| break; |
| } |
| |
| if (level_stats->min_frame_width < MIN_FRAME_WIDTH) { |
| fail_id = LUMA_PIC_H_SIZE_TOO_SMALL; |
| break; |
| } |
| |
| if (level_stats->min_frame_height < MIN_FRAME_HEIGHT) { |
| fail_id = LUMA_PIC_V_SIZE_TOO_SMALL; |
| break; |
| } |
| |
| if (!level_stats->tile_width_is_valid) { |
| fail_id = TILE_WIDTH_INVALID; |
| break; |
| } |
| |
| const double min_cr = get_min_cr(target_level_spec, tier, is_still_picture, |
| level_spec->max_decode_rate); |
| if (level_stats->min_cr < min_cr) { |
| fail_id = CR_TOO_SMALL; |
| break; |
| } |
| |
| if (check_bitrate) { |
| // Check average bitrate instead of max_bitrate. |
| const double bitrate_limit = |
| get_max_bitrate(target_level_spec, tier, profile); |
| const double avg_bitrate = level_stats->total_compressed_size * 8.0 / |
| level_stats->total_time_encoded; |
| if (avg_bitrate > bitrate_limit) { |
| fail_id = BITRATE_TOO_HIGH; |
| break; |
| } |
| } |
| |
| if (target_level_spec->level > SEQ_LEVEL_5_1) { |
| int temporal_parallel_num; |
| int temporal_parallel_denom; |
| const int scalability_mode_idc = -1; |
| get_temporal_parallel_params(scalability_mode_idc, &temporal_parallel_num, |
| &temporal_parallel_denom); |
| const int val = level_stats->max_tile_size * level_spec->max_header_rate * |
| temporal_parallel_denom / temporal_parallel_num; |
| if (val > MAX_TILE_SIZE_HEADER_RATE_PRODUCT) { |
| fail_id = TILE_SIZE_HEADER_RATE_TOO_HIGH; |
| break; |
| } |
| } |
| } while (0); |
| |
| return fail_id; |
| } |
| |
| static void get_tile_stats(const AV1_COMMON *const cm, |
| const TileDataEnc *const tile_data, |
| int *max_tile_size, int *max_superres_tile_width, |
| int *min_cropped_tile_width, |
| int *min_cropped_tile_height, |
| int *tile_width_valid) { |
| const int tile_cols = cm->tiles.cols; |
| const int tile_rows = cm->tiles.rows; |
| const int superres_scale_denominator = cm->superres_scale_denominator; |
| |
| *max_tile_size = 0; |
| *max_superres_tile_width = 0; |
| *min_cropped_tile_width = INT_MAX; |
| *min_cropped_tile_height = INT_MAX; |
| *tile_width_valid = 1; |
| |
| for (int tile_row = 0; tile_row < tile_rows; ++tile_row) { |
| for (int tile_col = 0; tile_col < tile_cols; ++tile_col) { |
| const TileInfo *const tile_info = |
| &tile_data[tile_row * cm->tiles.cols + tile_col].tile_info; |
| const int tile_width = |
| (tile_info->mi_col_end - tile_info->mi_col_start) * MI_SIZE; |
| const int tile_height = |
| (tile_info->mi_row_end - tile_info->mi_row_start) * MI_SIZE; |
| const int tile_size = tile_width * tile_height; |
| *max_tile_size = AOMMAX(*max_tile_size, tile_size); |
| |
| const int supperres_tile_width = |
| tile_width * superres_scale_denominator / SCALE_NUMERATOR; |
| *max_superres_tile_width = |
| AOMMAX(*max_superres_tile_width, supperres_tile_width); |
| |
| const int cropped_tile_width = |
| cm->width - tile_info->mi_col_start * MI_SIZE; |
| const int cropped_tile_height = |
| cm->height - tile_info->mi_row_start * MI_SIZE; |
| *min_cropped_tile_width = |
| AOMMIN(*min_cropped_tile_width, cropped_tile_width); |
| *min_cropped_tile_height = |
| AOMMIN(*min_cropped_tile_height, cropped_tile_height); |
| |
| const int is_right_most_tile = |
| tile_info->mi_col_end == cm->mi_params.mi_cols; |
| if (!is_right_most_tile) { |
| if (av1_superres_scaled(cm)) |
| *tile_width_valid &= tile_width >= 128; |
| else |
| *tile_width_valid &= tile_width >= 64; |
| } |
| } |
| } |
| } |
| |
| static int store_frame_record(int64_t ts_start, int64_t ts_end, |
| size_t encoded_size, int pic_size, |
| int frame_header_count, int tiles, int show_frame, |
| int show_existing_frame, |
| FrameWindowBuffer *const buffer) { |
| if (buffer->num < FRAME_WINDOW_SIZE) { |
| ++buffer->num; |
| } else { |
| buffer->start = (buffer->start + 1) % FRAME_WINDOW_SIZE; |
| } |
| const int new_idx = (buffer->start + buffer->num - 1) % FRAME_WINDOW_SIZE; |
| FrameRecord *const record = &buffer->buf[new_idx]; |
| record->ts_start = ts_start; |
| record->ts_end = ts_end; |
| record->encoded_size_in_bytes = encoded_size; |
| record->pic_size = pic_size; |
| record->frame_header_count = frame_header_count; |
| record->tiles = tiles; |
| record->show_frame = show_frame; |
| record->show_existing_frame = show_existing_frame; |
| |
| return new_idx; |
| } |
| |
| // Count the number of frames encoded in the last "duration" ticks, in display |
| // time. |
| static int count_frames(const FrameWindowBuffer *const buffer, |
| int64_t duration) { |
| const int current_idx = (buffer->start + buffer->num - 1) % FRAME_WINDOW_SIZE; |
| // Assume current frame is shown frame. |
| assert(buffer->buf[current_idx].show_frame); |
| |
| const int64_t current_time = buffer->buf[current_idx].ts_end; |
| const int64_t time_limit = AOMMAX(current_time - duration, 0); |
| int num_frames = 1; |
| int index = current_idx - 1; |
| for (int i = buffer->num - 2; i >= 0; --i, --index, ++num_frames) { |
| if (index < 0) index = FRAME_WINDOW_SIZE - 1; |
| const FrameRecord *const record = &buffer->buf[index]; |
| if (!record->show_frame) continue; |
| const int64_t ts_start = record->ts_start; |
| if (ts_start < time_limit) break; |
| } |
| |
| return num_frames; |
| } |
| |
| // Scan previously encoded frames and update level metrics accordingly. |
| static void scan_past_frames(const FrameWindowBuffer *const buffer, |
| int num_frames_to_scan, |
| AV1LevelSpec *const level_spec, |
| AV1LevelStats *const level_stats) { |
| const int num_frames_in_buffer = buffer->num; |
| int index = (buffer->start + num_frames_in_buffer - 1) % FRAME_WINDOW_SIZE; |
| int frame_headers = 0; |
| int tiles = 0; |
| int64_t display_samples = 0; |
| int64_t decoded_samples = 0; |
| size_t encoded_size_in_bytes = 0; |
| for (int i = 0; i < AOMMIN(num_frames_in_buffer, num_frames_to_scan); ++i) { |
| const FrameRecord *const record = &buffer->buf[index]; |
| if (!record->show_existing_frame) { |
| frame_headers += record->frame_header_count; |
| decoded_samples += record->pic_size; |
| } |
| if (record->show_frame) { |
| display_samples += record->pic_size; |
| } |
| tiles += record->tiles; |
| encoded_size_in_bytes += record->encoded_size_in_bytes; |
| --index; |
| if (index < 0) index = FRAME_WINDOW_SIZE - 1; |
| } |
| level_spec->max_header_rate = |
| AOMMAX(level_spec->max_header_rate, frame_headers); |
| // TODO(huisu): we can now compute max display rate with the decoder model, so |
| // these couple of lines can be removed. Keep them here for a while for |
| // debugging purpose. |
| level_spec->max_display_rate = |
| AOMMAX(level_spec->max_display_rate, display_samples); |
| level_spec->max_decode_rate = |
| AOMMAX(level_spec->max_decode_rate, decoded_samples); |
| level_spec->max_tile_rate = AOMMAX(level_spec->max_tile_rate, tiles); |
| level_stats->max_bitrate = |
| AOMMAX(level_stats->max_bitrate, (int)encoded_size_in_bytes * 8); |
| } |
| |
| void av1_update_level_info(AV1_COMP *cpi, size_t size, int64_t ts_start, |
| int64_t ts_end) { |
| AV1_COMMON *const cm = &cpi->common; |
| const AV1LevelParams *const level_params = &cpi->level_params; |
| |
| const int upscaled_width = cm->superres_upscaled_width; |
| const int width = cm->width; |
| const int height = cm->height; |
| const int tile_cols = cm->tiles.cols; |
| const int tile_rows = cm->tiles.rows; |
| const int tiles = tile_cols * tile_rows; |
| const int luma_pic_size = upscaled_width * height; |
| const int frame_header_count = level_params->frame_header_count; |
| const int show_frame = cm->show_frame; |
| const int show_existing_frame = cm->show_existing_frame; |
| |
| int max_tile_size; |
| int min_cropped_tile_width; |
| int min_cropped_tile_height; |
| int max_superres_tile_width; |
| int tile_width_is_valid; |
| get_tile_stats(cm, cpi->tile_data, &max_tile_size, &max_superres_tile_width, |
| &min_cropped_tile_width, &min_cropped_tile_height, |
| &tile_width_is_valid); |
| |
| aom_clear_system_state(); |
| const double compression_ratio = av1_get_compression_ratio(cm, size); |
| |
| const int temporal_layer_id = cm->temporal_layer_id; |
| const int spatial_layer_id = cm->spatial_layer_id; |
| const SequenceHeader *const seq_params = &cm->seq_params; |
| const BITSTREAM_PROFILE profile = seq_params->profile; |
| const int is_still_picture = seq_params->still_picture; |
| // update level_stats |
| // TODO(kyslov@) fix the implementation according to buffer model |
| for (int i = 0; i < seq_params->operating_points_cnt_minus_1 + 1; ++i) { |
| if (!is_in_operating_point(seq_params->operating_point_idc[i], |
| temporal_layer_id, spatial_layer_id) || |
| !((level_params->keep_level_stats >> i) & 1)) { |
| continue; |
| } |
| |
| AV1LevelInfo *const level_info = level_params->level_info[i]; |
| assert(level_info != NULL); |
| AV1LevelStats *const level_stats = &level_info->level_stats; |
| |
| level_stats->max_tile_size = |
| AOMMAX(level_stats->max_tile_size, max_tile_size); |
| level_stats->max_superres_tile_width = |
| AOMMAX(level_stats->max_superres_tile_width, max_superres_tile_width); |
| level_stats->min_cropped_tile_width = |
| AOMMIN(level_stats->min_cropped_tile_width, min_cropped_tile_width); |
| level_stats->min_cropped_tile_height = |
| AOMMIN(level_stats->min_cropped_tile_height, min_cropped_tile_height); |
| level_stats->tile_width_is_valid &= tile_width_is_valid; |
| level_stats->min_frame_width = AOMMIN(level_stats->min_frame_width, width); |
| level_stats->min_frame_height = |
| AOMMIN(level_stats->min_frame_height, height); |
| level_stats->min_cr = AOMMIN(level_stats->min_cr, compression_ratio); |
| level_stats->total_compressed_size += (double)size; |
| |
| // update level_spec |
| // TODO(kyslov@) update all spec fields |
| AV1LevelSpec *const level_spec = &level_info->level_spec; |
| level_spec->max_picture_size = |
| AOMMAX(level_spec->max_picture_size, luma_pic_size); |
| level_spec->max_h_size = |
| AOMMAX(level_spec->max_h_size, cm->superres_upscaled_width); |
| level_spec->max_v_size = AOMMAX(level_spec->max_v_size, height); |
| level_spec->max_tile_cols = AOMMAX(level_spec->max_tile_cols, tile_cols); |
| level_spec->max_tiles = AOMMAX(level_spec->max_tiles, tiles); |
| |
| // Store info. of current frame into FrameWindowBuffer. |
| FrameWindowBuffer *const buffer = &level_info->frame_window_buffer; |
| store_frame_record(ts_start, ts_end, size, luma_pic_size, |
| frame_header_count, tiles, show_frame, |
| show_existing_frame, buffer); |
| if (show_frame) { |
| // Count the number of frames encoded in the past 1 second. |
| const int encoded_frames_in_last_second = |
| show_frame ? count_frames(buffer, TICKS_PER_SEC) : 0; |
| scan_past_frames(buffer, encoded_frames_in_last_second, level_spec, |
| level_stats); |
| level_stats->total_time_encoded += |
| (cpi->time_stamps.prev_end_seen - cpi->time_stamps.prev_start_seen) / |
| (double)TICKS_PER_SEC; |
| } |
| |
| DECODER_MODEL *const decoder_models = level_info->decoder_models; |
| for (AV1_LEVEL level = SEQ_LEVEL_2_0; level < SEQ_LEVELS; ++level) { |
| av1_decoder_model_process_frame(cpi, size << 3, &decoder_models[level]); |
| } |
| |
| // Check whether target level is met. |
| const AV1_LEVEL target_level = level_params->target_seq_level_idx[i]; |
| if (target_level < SEQ_LEVELS) { |
| assert(is_valid_seq_level_idx(target_level)); |
| const int tier = seq_params->tier[i]; |
| const TARGET_LEVEL_FAIL_ID fail_id = check_level_constraints( |
| level_info, target_level, tier, is_still_picture, profile, 0); |
| if (fail_id != TARGET_LEVEL_OK) { |
| const int target_level_major = 2 + (target_level >> 2); |
| const int target_level_minor = target_level & 3; |
| aom_internal_error(&cm->error, AOM_CODEC_ERROR, |
| "Failed to encode to the target level %d_%d. %s", |
| target_level_major, target_level_minor, |
| level_fail_messages[fail_id]); |
| } |
| } |
| } |
| } |
| |
| aom_codec_err_t av1_get_seq_level_idx(const SequenceHeader *seq_params, |
| const AV1LevelParams *level_params, |
| int *seq_level_idx) { |
| const int is_still_picture = seq_params->still_picture; |
| const BITSTREAM_PROFILE profile = seq_params->profile; |
| for (int op = 0; op < seq_params->operating_points_cnt_minus_1 + 1; ++op) { |
| seq_level_idx[op] = (int)SEQ_LEVEL_MAX; |
| if (!((level_params->keep_level_stats >> op) & 1)) continue; |
| const int tier = seq_params->tier[op]; |
| const AV1LevelInfo *const level_info = level_params->level_info[op]; |
| assert(level_info != NULL); |
| for (int level = 0; level < SEQ_LEVELS; ++level) { |
| if (!is_valid_seq_level_idx(level)) continue; |
| const TARGET_LEVEL_FAIL_ID fail_id = check_level_constraints( |
| level_info, level, tier, is_still_picture, profile, 1); |
| if (fail_id == TARGET_LEVEL_OK) { |
| seq_level_idx[op] = level; |
| break; |
| } |
| } |
| } |
| |
| return AOM_CODEC_OK; |
| } |
