| /* |
| * Copyright (c) 2021, Alliance for Open Media. All rights reserved |
| * |
| * This source code is subject to the terms of the BSD 3-Clause Clear License |
| * and the Alliance for Open Media Patent License 1.0. If the BSD 3-Clause Clear |
| * License was not distributed with this source code in the LICENSE file, you |
| * can obtain it at aomedia.org/license/software-license/bsd-3-c-c/. 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 |
| * aomedia.org/license/patent-license/. |
| */ |
| |
| #ifndef AOM_AV1_DECODER_DECODEFRAME_H_ |
| #define AOM_AV1_DECODER_DECODEFRAME_H_ |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| #if CONFIG_THROUGHPUT_ANALYSIS |
| extern int64_t tot_ctx_syms; |
| extern int64_t tot_bypass_syms; |
| extern int max_ctx_syms; |
| extern int max_bypass_syms; |
| extern int max_bits; |
| extern int64_t tot_bits; |
| extern int tot_frames; |
| #endif // CONFIG_THROUGHPUT_ANALYSIS |
| |
| struct AV1Decoder; |
| struct aom_read_bit_buffer; |
| struct ThreadData; |
| |
| // Reads the middle part of the sequence header OBU (from |
| // frame_width_bits_minus_1 to enable_restoration) into seq_params. |
| // Reports errors by calling rb->error_handler() or aom_internal_error(). |
| void av1_read_sequence_header(AV1_COMMON *cm, struct aom_read_bit_buffer *rb, |
| SequenceHeader *seq_params); |
| |
| // Reads additional sequence header for coding tools beyond AV1 |
| void av1_read_sequence_header_beyond_av1(struct aom_read_bit_buffer *rb, |
| SequenceHeader *seq_params); |
| |
| void av1_read_frame_size(struct aom_read_bit_buffer *rb, int num_bits_width, |
| int num_bits_height, int *width, int *height); |
| BITSTREAM_PROFILE av1_read_profile(struct aom_read_bit_buffer *rb); |
| |
| // Returns 0 on success. Sets pbi->common.error.error_code and returns -1 on |
| // failure. |
| int av1_check_trailing_bits(struct AV1Decoder *pbi, |
| struct aom_read_bit_buffer *rb); |
| |
| // On success, returns the frame header size. On failure, calls |
| // aom_internal_error and does not return. |
| // TODO(wtc): Figure out and document the p_data_end parameter. |
| uint32_t av1_decode_frame_headers_and_setup(struct AV1Decoder *pbi, |
| struct aom_read_bit_buffer *rb, |
| const uint8_t *data, |
| const uint8_t **p_data_end, |
| int trailing_bits_present); |
| |
| void av1_decode_tg_tiles_and_wrapup(struct AV1Decoder *pbi, const uint8_t *data, |
| const uint8_t *data_end, |
| const uint8_t **p_data_end, int start_tile, |
| int end_tile, int initialize_flag); |
| |
| // Implements the color_config() function in the spec. Reports errors by |
| // calling rb->error_handler() or aom_internal_error(). |
| void av1_read_color_config(struct aom_read_bit_buffer *rb, |
| int allow_lowbitdepth, SequenceHeader *seq_params, |
| struct aom_internal_error_info *error_info); |
| |
| // Implements the timing_info() function in the spec. Reports errors by calling |
| // rb->error_handler() or aom_internal_error(). |
| void av1_read_timing_info_header(aom_timing_info_t *timing_info, |
| struct aom_internal_error_info *error, |
| struct aom_read_bit_buffer *rb); |
| |
| // Implements the decoder_model_info() function in the spec. Reports errors by |
| // calling rb->error_handler(). |
| void av1_read_decoder_model_info(aom_dec_model_info_t *decoder_model_info, |
| struct aom_read_bit_buffer *rb); |
| |
| // Implements the operating_parameters_info() function in the spec. Reports |
| // errors by calling rb->error_handler(). |
| void av1_read_op_parameters_info(aom_dec_model_op_parameters_t *op_params, |
| int buffer_delay_length, |
| struct aom_read_bit_buffer *rb); |
| |
| struct aom_read_bit_buffer *av1_init_read_bit_buffer( |
| struct AV1Decoder *pbi, struct aom_read_bit_buffer *rb, const uint8_t *data, |
| const uint8_t *data_end); |
| |
| void av1_free_mc_tmp_buf(struct ThreadData *thread_data); |
| |
| void av1_set_single_tile_decoding_mode(AV1_COMMON *const cm); |
| |
| #ifdef __cplusplus |
| } // extern "C" |
| #endif |
| |
| #endif // AOM_AV1_DECODER_DECODEFRAME_H_ |