AOMedia AV1 Codec
bitstream.h
1 /*
2  * Copyright (c) 2016, Alliance for Open Media. All rights reserved
3  *
4  * This source code is subject to the terms of the BSD 2 Clause License and
5  * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
6  * was not distributed with this source code in the LICENSE file, you can
7  * obtain it at www.aomedia.org/license/software. If the Alliance for Open
8  * Media Patent License 1.0 was not distributed with this source code in the
9  * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
10  */
11 
12 #ifndef AOM_AV1_ENCODER_BITSTREAM_H_
13 #define AOM_AV1_ENCODER_BITSTREAM_H_
14 
15 #ifdef __cplusplus
16 extern "C" {
17 #endif
18 
19 #include "av1/encoder/encoder.h"
20 
21 struct aom_write_bit_buffer;
22 
23 // Writes only the OBU Sequence Header payload, and returns the size of the
24 // payload written to 'dst'. This function does not write the OBU header, the
25 // optional extension, or the OBU size to 'dst'.
26 uint32_t av1_write_sequence_header_obu(const SequenceHeader *seq_params,
27  uint8_t *const dst);
28 
29 // Writes the OBU header byte, and the OBU header extension byte when
30 // 'obu_extension' is non-zero. Returns number of bytes written to 'dst'.
31 uint32_t av1_write_obu_header(AV1LevelParams *const level_params,
32  OBU_TYPE obu_type, int obu_extension,
33  uint8_t *const dst);
34 
35 int av1_write_uleb_obu_size(size_t obu_header_size, size_t obu_payload_size,
36  uint8_t *dest);
37 
43 int av1_pack_bitstream(AV1_COMP *const cpi, uint8_t *dst, size_t *size,
44  int *const largest_tile_id);
45 
46 void av1_write_tx_type(const AV1_COMMON *const cm, const MACROBLOCKD *xd,
47  TX_TYPE tx_type, TX_SIZE tx_size, aom_writer *w);
48 
49 #ifdef __cplusplus
50 } // extern "C"
51 #endif
52 
53 #endif // AOM_AV1_ENCODER_BITSTREAM_H_
int av1_pack_bitstream(AV1_COMP *const cpi, uint8_t *dst, size_t *size, int *const largest_tile_id)
Pack the bitstream for one frame.
OBU_TYPE
OBU types.
Definition: aom_codec.h:541
Variables related to current coding block.
Definition: blockd.h:568
Top level encoder structure.
Definition: encoder.h:2095
Declares top-level encoder structures and functions.
Top level common structure used by both encoder and decoder.
Definition: av1_common_int.h:723