84 lines
3.6 KiB
C
84 lines
3.6 KiB
C
/*
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* Copyright (c) 2016, Alliance for Open Media. All rights reserved
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*
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* This source code is subject to the terms of the BSD 2 Clause License and
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* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
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* was not distributed with this source code in the LICENSE file, you can
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* obtain it at www.aomedia.org/license/software. If the Alliance for Open
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* Media Patent License 1.0 was not distributed with this source code in the
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* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
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*/
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#ifndef AOM_AV1_DECODER_DECODEFRAME_H_
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#define AOM_AV1_DECODER_DECODEFRAME_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct AV1Decoder;
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struct aom_read_bit_buffer;
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struct ThreadData;
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// Reads the middle part of the sequence header OBU (from
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// frame_width_bits_minus_1 to enable_restoration) into seq_params.
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// Reports errors by calling rb->error_handler() or aom_internal_error().
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void av1_read_sequence_header(AV1_COMMON *cm, struct aom_read_bit_buffer *rb,
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SequenceHeader *seq_params);
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void av1_read_frame_size(struct aom_read_bit_buffer *rb, int num_bits_width,
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int num_bits_height, int *width, int *height);
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BITSTREAM_PROFILE av1_read_profile(struct aom_read_bit_buffer *rb);
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// Returns 0 on success. Sets pbi->common.error.error_code and returns -1 on
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// failure.
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int av1_check_trailing_bits(struct AV1Decoder *pbi,
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struct aom_read_bit_buffer *rb);
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// On success, returns the frame header size. On failure, calls
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// aom_internal_error and does not return.
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uint32_t av1_decode_frame_headers_and_setup(struct AV1Decoder *pbi,
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struct aom_read_bit_buffer *rb,
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int trailing_bits_present);
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void av1_decode_tg_tiles_and_wrapup(struct AV1Decoder *pbi, const uint8_t *data,
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const uint8_t *data_end,
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const uint8_t **p_data_end, int start_tile,
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int end_tile, int initialize_flag);
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// Implements the color_config() function in the spec. Reports errors by
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// calling rb->error_handler() or aom_internal_error().
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void av1_read_color_config(struct aom_read_bit_buffer *rb,
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int allow_lowbitdepth, SequenceHeader *seq_params,
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struct aom_internal_error_info *error_info);
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// Implements the timing_info() function in the spec. Reports errors by calling
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// rb->error_handler() or aom_internal_error().
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void av1_read_timing_info_header(aom_timing_info_t *timing_info,
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struct aom_internal_error_info *error,
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struct aom_read_bit_buffer *rb);
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// Implements the decoder_model_info() function in the spec. Reports errors by
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// calling rb->error_handler().
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void av1_read_decoder_model_info(aom_dec_model_info_t *decoder_model_info,
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struct aom_read_bit_buffer *rb);
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// Implements the operating_parameters_info() function in the spec. Reports
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// errors by calling rb->error_handler().
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void av1_read_op_parameters_info(aom_dec_model_op_parameters_t *op_params,
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int buffer_delay_length,
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struct aom_read_bit_buffer *rb);
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struct aom_read_bit_buffer *av1_init_read_bit_buffer(
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struct AV1Decoder *pbi, struct aom_read_bit_buffer *rb, const uint8_t *data,
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const uint8_t *data_end);
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void av1_free_mc_tmp_buf(struct ThreadData *thread_data);
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void av1_set_single_tile_decoding_mode(AV1_COMMON *const cm);
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#ifdef __cplusplus
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} // extern "C"
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#endif
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#endif // AOM_AV1_DECODER_DECODEFRAME_H_
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