#include <stddef.h>
#include <stdint.h>
#include "cbs.h"
#include "sei.h"

Data Structures
struct	SEIRawFillerPayload

struct	SEIRawUserDataRegistered

struct	SEIRawUserDataUnregistered

struct	SEIRawFramePackingArrangement

struct	SEIRawDecodedPictureHash

struct	SEIRawMasteringDisplayColourVolume

struct	SEIRawContentLightLevelInfo

struct	SEIRawAlternativeTransferCharacteristics

struct	SEIRawAmbientViewingEnvironment

struct	SEIRawFilmGrainCharacteristics

struct	SEIRawDisplayOrientation

struct	SEIRawFrameFieldInformation

struct	SEIRawMessage

struct	SEIRawMessageList

struct	SEIMessageState

struct	SEIMessageTypeDescriptor

Macros
#define	SEI_MESSAGE_TYPE_END { .type = -1 }

Typedefs
typedef int(*	SEIMessageReadFunction) (CodedBitstreamContext ctx, struct GetBitContext rw, void current, SEIMessageState sei)

typedef int(*	SEIMessageWriteFunction) (CodedBitstreamContext ctx, struct PutBitContext rw, void current, SEIMessageState sei)

Functions
const SEIMessageTypeDescriptor *	ff_cbs_sei_find_type (CodedBitstreamContext *ctx, int payload_type)
	Find the type descriptor for the given payload type. More...

int	ff_cbs_sei_alloc_message_payload (SEIRawMessage message, const SEIMessageTypeDescriptor desc)
	Allocate a new payload for the given SEI message. More...

int	ff_cbs_sei_list_add (SEIRawMessageList *list)
	Allocate a new empty SEI message in a message list. More...

void	ff_cbs_sei_free_message_list (SEIRawMessageList *list)
	Free all SEI messages in a message list. More...

int	ff_cbs_sei_add_message (CodedBitstreamContext ctx, CodedBitstreamFragment au, int prefix, uint32_t payload_type, void payload_data, void payload_ref)
	Add an SEI message to an access unit. More...

int	ff_cbs_sei_find_message (CodedBitstreamContext ctx, CodedBitstreamFragment au, uint32_t payload_type, SEIRawMessage **message)
	Iterate over messages with the given payload type in an access unit. More...

void	ff_cbs_sei_delete_message_type (CodedBitstreamContext ctx, CodedBitstreamFragment au, uint32_t payload_type)
	Delete all messages with the given payload type from an access unit. More...

int	ff_cbs_sei_read_message_list (CodedBitstreamContext ctx, struct GetBitContext rw, SEIRawMessageList *current, int prefix)

int	ff_cbs_sei_write_message_list (CodedBitstreamContext ctx, struct PutBitContext rw, SEIRawMessageList *current, int prefix)

int	ff_cbs_sei_read_message (CodedBitstreamContext ctx, struct GetBitContext rw, SEIRawMessage *current)

int	ff_cbs_sei_write_message (CodedBitstreamContext ctx, struct PutBitContext rw, SEIRawMessage *current)

Variables
const SEIMessageTypeDescriptor	ff_cbs_sei_h264_types []

const SEIMessageTypeDescriptor	ff_cbs_sei_h265_types []

Macro Definition Documentation

◆ SEI_MESSAGE_TYPE_END

#define SEI_MESSAGE_TYPE_END { .type = -1 }

Definition at line 202 of file cbs_sei.h.

Typedef Documentation

◆ SEIMessageReadFunction

typedef int(* SEIMessageReadFunction) (CodedBitstreamContext *ctx, struct GetBitContext *rw, void *current, SEIMessageState *sei)

Definition at line 176 of file cbs_sei.h.

◆ SEIMessageWriteFunction

typedef int(* SEIMessageWriteFunction) (CodedBitstreamContext *ctx, struct PutBitContext *rw, void *current, SEIMessageState *sei)

Definition at line 181 of file cbs_sei.h.

Function Documentation

◆ ff_cbs_sei_find_type()

const SEIMessageTypeDescriptor* ff_cbs_sei_find_type	(	CodedBitstreamContext *	ctx,
		int	payload_type
	)

Find the type descriptor for the given payload type.

Returns NULL if the payload type is not known.

Definition at line 673 of file cbs_sei.c.

Referenced by ff_cbs_sei_add_message(), and message().

◆ ff_cbs_sei_alloc_message_payload()

int ff_cbs_sei_alloc_message_payload	(	SEIRawMessage *	message,
		const SEIMessageTypeDescriptor *	desc
	)

Allocate a new payload for the given SEI message.

Definition at line 240 of file cbs_sei.c.

Referenced by message().

◆ ff_cbs_sei_list_add()

int ff_cbs_sei_list_add ( SEIRawMessageList * list )

Allocate a new empty SEI message in a message list.

The new message is in place nb_messages - 1.

Definition at line 266 of file cbs_sei.c.

Referenced by ff_cbs_sei_add_message(), and message_list().

◆ ff_cbs_sei_free_message_list()

void ff_cbs_sei_free_message_list ( SEIRawMessageList * list )

Free all SEI messages in a message list.

Definition at line 291 of file cbs_sei.c.

Referenced by cbs_h264_free_sei(), cbs_h265_free_sei(), and cbs_h266_free_sei().

◆ ff_cbs_sei_add_message()

int ff_cbs_sei_add_message	(	CodedBitstreamContext *	ctx,
		CodedBitstreamFragment *	au,
		int	prefix,
		uint32_t	payload_type,
		void *	payload_data,
		void *	payload_ref
	)

Add an SEI message to an access unit.

Will add to an existing SEI NAL unit, or create a new one for the message if there is no suitable existing one.

If set, payload_ref must be a RefStruct reference backing payload_data. This function creates a new reference to payload_ref in this case. If payload_ref is NULL, the new message will not be reference counted.

Definition at line 467 of file cbs_sei.c.

Referenced by h264_metadata_handle_display_orientation(), h264_metadata_update_fragment(), vaapi_encode_h264_write_extra_header(), vaapi_encode_h265_write_extra_header(), and write_extra_headers().

◆ ff_cbs_sei_find_message()

int ff_cbs_sei_find_message	(	CodedBitstreamContext *	ctx,
		CodedBitstreamFragment *	au,
		uint32_t	payload_type,
		SEIRawMessage **	message
	)

Iterate over messages with the given payload type in an access unit.

Set message to NULL in the first call. Returns 0 while more messages are available, AVERROR(ENOENT) when all messages have been found.

Definition at line 514 of file cbs_sei.c.

Referenced by h264_metadata_handle_display_orientation().

◆ ff_cbs_sei_delete_message_type()

void ff_cbs_sei_delete_message_type	(	CodedBitstreamContext *	ctx,
		CodedBitstreamFragment *	au,
		uint32_t	payload_type
	)

Delete all messages with the given payload type from an access unit.

Definition at line 567 of file cbs_sei.c.

Referenced by h264_metadata_handle_display_orientation(), and h264_metadata_update_fragment().

◆ ff_cbs_sei_read_message_list()

int ff_cbs_sei_read_message_list	(	CodedBitstreamContext *	ctx,
		struct GetBitContext *	rw,
		SEIRawMessageList *	current,
		int	prefix
	)

◆ ff_cbs_sei_write_message_list()

int ff_cbs_sei_write_message_list	(	CodedBitstreamContext *	ctx,
		struct PutBitContext *	rw,
		SEIRawMessageList *	current,
		int	prefix
	)

◆ ff_cbs_sei_read_message()

int ff_cbs_sei_read_message	(	CodedBitstreamContext *	ctx,
		struct GetBitContext *	rw,
		SEIRawMessage *	current
	)

◆ ff_cbs_sei_write_message()

int ff_cbs_sei_write_message	(	CodedBitstreamContext *	ctx,
		struct PutBitContext *	rw,
		SEIRawMessage *	current
	)

Variable Documentation

◆ ff_cbs_sei_h264_types

const SEIMessageTypeDescriptor ff_cbs_sei_h264_types[]

Definition at line 744 of file cbs_h264.c.

Referenced by ff_cbs_sei_find_type().

◆ ff_cbs_sei_h265_types

const SEIMessageTypeDescriptor ff_cbs_sei_h265_types[]

Definition at line 743 of file cbs_h265.c.