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Diffstat (limited to '')
| -rw-r--r-- | third_party/aom/av1/encoder/level.c | 1397 |
1 files changed, 1397 insertions, 0 deletions
diff --git a/third_party/aom/av1/encoder/level.c b/third_party/aom/av1/encoder/level.c new file mode 100644 index 0000000000..5d5fe9ce96 --- /dev/null +++ b/third_party/aom/av1/encoder/level.c @@ -0,0 +1,1397 @@ +/* + * 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 "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 }, +#if CONFIG_CWG_C013 + { .level = SEQ_LEVEL_7_0, + .max_picture_size = 142606336, + .max_h_size = 32768, + .max_v_size = 17408, + .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 = 256, + .max_tile_cols = 32 }, + { .level = SEQ_LEVEL_7_1, + .max_picture_size = 142606336, + .max_h_size = 32768, + .max_v_size = 17408, + .max_display_rate = 8556380160L, + .max_decode_rate = 8758886400L, + .max_header_rate = 300, + .main_mbps = 200.0, + .high_mbps = 960.0, + .main_cr = 8.0, + .high_cr = 4.0, + .max_tiles = 256, + .max_tile_cols = 32 }, + { .level = SEQ_LEVEL_7_2, + .max_picture_size = 142606336, + .max_h_size = 32768, + .max_v_size = 17408, + .max_display_rate = 17112760320L, + .max_decode_rate = 17517772800L, + .max_header_rate = 300, + .main_mbps = 320.0, + .high_mbps = 1600.0, + .main_cr = 8.0, + .high_cr = 4.0, + .max_tiles = 256, + .max_tile_cols = 32 }, + { .level = SEQ_LEVEL_7_3, + .max_picture_size = 142606336, + .max_h_size = 32768, + .max_v_size = 17408, + .max_display_rate = 17112760320L, + .max_decode_rate = 18824036352L, + .max_header_rate = 300, + .main_mbps = 320.0, + .high_mbps = 1600.0, + .main_cr = 8.0, + .high_cr = 4.0, + .max_tiles = 256, + .max_tile_cols = 32 }, + { .level = SEQ_LEVEL_8_0, + .max_picture_size = 530841600, + .max_h_size = 65536, + .max_v_size = 34816, + .max_display_rate = 17112760320L, + .max_decode_rate = 18824036352L, + .max_header_rate = 300, + .main_mbps = 320.0, + .high_mbps = 1600.0, + .main_cr = 8.0, + .high_cr = 4.0, + .max_tiles = 512, + .max_tile_cols = 64 }, + { .level = SEQ_LEVEL_8_1, + .max_picture_size = 530841600, + .max_h_size = 65536, + .max_v_size = 34816, + .max_display_rate = 34225520640L, + .max_decode_rate = 34910031052L, + .max_header_rate = 300, + .main_mbps = 400.0, + .high_mbps = 1920.0, + .main_cr = 8.0, + .high_cr = 4.0, + .max_tiles = 512, + .max_tile_cols = 64 }, + { .level = SEQ_LEVEL_8_2, + .max_picture_size = 530841600, + .max_h_size = 65536, + .max_v_size = 34816, + .max_display_rate = 68451041280L, + .max_decode_rate = 69820062105L, + .max_header_rate = 300, + .main_mbps = 640.0, + .high_mbps = 3200.0, + .main_cr = 8.0, + .high_cr = 4.0, + .max_tiles = 512, + .max_tile_cols = 64 }, + { .level = SEQ_LEVEL_8_3, + .max_picture_size = 530841600, + .max_h_size = 65536, + .max_v_size = 34816, + .max_display_rate = 68451041280L, + .max_decode_rate = 75296145408L, + .max_header_rate = 300, + .main_mbps = 640.0, + .high_mbps = 3200.0, + .main_cr = 8.0, + .high_cr = 4.0, + .max_tiles = 512, + .max_tile_cols = 64 }, +#else // !CONFIG_CWG_C013 + UNDEFINED_LEVEL, + UNDEFINED_LEVEL, + UNDEFINED_LEVEL, + UNDEFINED_LEVEL, + UNDEFINED_LEVEL, + UNDEFINED_LEVEL, + UNDEFINED_LEVEL, + UNDEFINED_LEVEL, +#endif // CONFIG_CWG_C013 +}; + +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 +static double time_next_buffer_is_free(int num_decoded_frame, + int decoder_buffer_delay, + const FRAME_BUFFER *frame_buffer_pool, + double current_time) { + if (num_decoded_frame == 0) { + return (double)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 = &frame_buffer_pool[i]; + if (this_buffer->decoder_ref_count == 0) { + if (this_buffer->player_ref_count == 0) { + return 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(int mode, int num_decoded_frame, + int decoder_buffer_delay, + const FRAME_BUFFER *frame_buffer_pool, + double current_time) { + if (mode == SCHEDULE_MODE) { + assert(0 && "SCHEDULE_MODE IS NOT SUPPORTED YET"); + return INVALID_TIME; + } else { + return time_next_buffer_is_free(num_decoded_frame, decoder_buffer_delay, + frame_buffer_pool, current_time); + } +} + +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) { + 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; +} + +DECODER_MODEL_STATUS av1_decoder_model_try_smooth_buf( + const AV1_COMP *const cpi, size_t coded_bits, + const DECODER_MODEL *const decoder_model) { + DECODER_MODEL_STATUS status = DECODER_MODEL_OK; + + if (!decoder_model || decoder_model->status != DECODER_MODEL_OK) { + return status; + } + + const AV1_COMMON *const cm = &cpi->common; + const int show_existing_frame = cm->show_existing_frame; + + size_t cur_coded_bits = decoder_model->coded_bits + coded_bits; + int num_decoded_frame = decoder_model->num_decoded_frame; + if (!show_existing_frame) ++num_decoded_frame; + + if (show_existing_frame) { + return status; + } else { + const double removal_time = get_removal_time( + decoder_model->mode, num_decoded_frame, + decoder_model->decoder_buffer_delay, decoder_model->frame_buffer_pool, + decoder_model->current_time); + if (removal_time < 0.0) { + status = DECODE_FRAME_BUF_UNAVAILABLE; + return status; + } + + // 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; + const double first_bit_arrival_time = + AOMMAX(decoder_model->last_bit_arrival_time, latest_arrival_time); + const double last_bit_arrival_time = + first_bit_arrival_time + + (double)cur_coded_bits / decoder_model->bit_rate; + // Smoothing buffer underflows if the last bit arrives after the removal + // time. + if (last_bit_arrival_time > removal_time && + !decoder_model->is_low_delay_mode) { + status = SMOOTHING_BUFFER_UNDERFLOW; + return status; + } + + // Check if the smoothing buffer overflows. + const DFG_INTERVAL_QUEUE *const queue = &decoder_model->dfg_interval_queue; + if (queue->size >= DFG_INTERVAL_QUEUE_SIZE) { + assert(0); + } + + double total_interval = queue->total_interval; + int qhead = queue->head; + int qsize = queue->size; + // Remove the DFGs with removal time earlier than last_bit_arrival_time. + while (queue->buf[qhead].removal_time <= last_bit_arrival_time && + qsize > 0) { + if (queue->buf[qhead].removal_time - first_bit_arrival_time + + total_interval > + 1.0) { + status = SMOOTHING_BUFFER_OVERFLOW; + return status; + } + total_interval -= queue->buf[qhead].last_bit_arrival_time - + queue->buf[qhead].first_bit_arrival_time; + qhead = (qhead + 1) % DFG_INTERVAL_QUEUE_SIZE; + --qsize; + } + 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 (total_interval > 1.0) { + status = SMOOTHING_BUFFER_OVERFLOW; + return status; + } + + return status; + } +} + +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; + + 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->mode, decoder_model->num_decoded_frame, + decoder_model->decoder_buffer_delay, decoder_model->frame_buffer_pool, + decoder_model->current_time); + 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 - 1) { + 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->ppi->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 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 CONFIG_CWG_C013 + const int max_tile_size = (level >= SEQ_LEVEL_7_0 && level <= SEQ_LEVEL_8_3) + ? MAX_TILE_AREA_LEVEL_7_AND_ABOVE + : MAX_TILE_AREA; +#else + const int max_tile_size = MAX_TILE_AREA; +#endif + 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)AOMMIN(encoded_size_in_bytes * 8, (size_t)INT_MAX)); +} + +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->ppi->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 = cpi->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); + + 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_ts_end - cpi->time_stamps.prev_ts_start) / + (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 && cpi->oxcf.strict_level_conformance) { + 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; +} + +aom_codec_err_t av1_get_target_seq_level_idx(const SequenceHeader *seq_params, + const AV1LevelParams *level_params, + int *target_seq_level_idx) { + for (int op = 0; op < seq_params->operating_points_cnt_minus_1 + 1; ++op) { + target_seq_level_idx[op] = (int)SEQ_LEVEL_MAX; + if (!((level_params->keep_level_stats >> op) & 1)) continue; + target_seq_level_idx[op] = level_params->target_seq_level_idx[op]; + } + + return AOM_CODEC_OK; +} |