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Diffstat (limited to '')
| -rw-r--r-- | third_party/aom/av1/decoder/decodeframe.h | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/third_party/aom/av1/decoder/decodeframe.h b/third_party/aom/av1/decoder/decodeframe.h new file mode 100644 index 0000000000..ddad273f18 --- /dev/null +++ b/third_party/aom/av1/decoder/decodeframe.h @@ -0,0 +1,85 @@ +/* + * Copyright (c) 2016, Alliance for Open Media. All rights reserved + * + * This source code is subject to the terms of the BSD 2 Clause License and + * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License + * was not distributed with this source code in the LICENSE file, you can + * obtain it at www.aomedia.org/license/software. If the Alliance for Open + * Media Patent License 1.0 was not distributed with this source code in the + * PATENTS file, you can obtain it at www.aomedia.org/license/patent. + */ + +#ifndef AOM_AV1_DECODER_DECODEFRAME_H_ +#define AOM_AV1_DECODER_DECODEFRAME_H_ + +#ifdef __cplusplus +extern "C" { +#endif + +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); + +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 startTile, + int endTile, 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(). +void av1_read_timing_info_header(AV1_COMMON *cm, + 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(AV1_COMMON *cm, + struct aom_read_bit_buffer *rb); + +// Implements the operating_parameters_info() function in the spec. Reports +// errors by calling rb->error_handler() or aom_internal_error(). +void av1_read_op_parameters_info(AV1_COMMON *const cm, + struct aom_read_bit_buffer *rb, int op_num); + +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_ |