AOMedia AV1 Codec: av1/encoder/bitstream.h Source File

| 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_
encoder.h
Declares top-level encoder structures and functions.
OBU_TYPE
OBU_TYPE
OBU types.
Definition: aom_codec.h:541
av1_pack_bitstream
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.
AV1Common
Top level common structure used by both encoder and decoder.
Definition: av1_common_int.h:725
AV1_COMP
Top level encoder structure.
Definition: encoder.h:2095
macroblockd
Variables related to current coding block.
Definition: blockd.h:568