obs-studio/libobs/obs-av1.h

// SPDX-FileCopyrightText: 2023 David Rosca <[email protected]>
//
// SPDX-License-Identifier: GPL-2.0-or-later

#pragma once

#include "util/c99defs.h"

#ifdef __cplusplus
extern "C" {
#endif

enum {
	OBS_OBU_SEQUENCE_HEADER = 1,
	OBS_OBU_TEMPORAL_DELIMITER = 2,
	OBS_OBU_FRAME_HEADER = 3,
	OBS_OBU_TILE_GROUP = 4,
	OBS_OBU_METADATA = 5,
	OBS_OBU_FRAME = 6,
	OBS_OBU_REDUNDANT_FRAME_HEADER = 7,
	OBS_OBU_TILE_LIST = 8,
	OBS_OBU_PADDING = 15,
};

enum av1_obu_metadata_type {
	METADATA_TYPE_HDR_CLL = 1,
	METADATA_TYPE_HDR_MDCV,
	METADATA_TYPE_SCALABILITY,
	METADATA_TYPE_ITUT_T35,
	METADATA_TYPE_TIMECODE,
	METADATA_TYPE_USER_PRIVATE_6
};

/* Helpers for parsing AV1 OB units.  */

EXPORT bool obs_av1_keyframe(const uint8_t *data, size_t size);
EXPORT void obs_extract_av1_headers(const uint8_t *packet, size_t size,
				    uint8_t **new_packet_data,
				    size_t *new_packet_size,
				    uint8_t **header_data, size_t *header_size);

EXPORT void metadata_obu_itu_t35(const uint8_t *itut_t35_buffer,
				 size_t itut_bufsize, uint8_t **out_buffer,
				 size_t *outbuf_size);
EXPORT void metadata_obu(const uint8_t *source_buffer, size_t source_bufsize,
			 uint8_t **out_buffer, size_t *outbuf_size,
			 uint8_t metadata_type);

#ifdef __cplusplus
}
#endif