cbs_sei.c File Reference

#include "cbs.h"
#include "cbs_internal.h"
#include "cbs_h264.h"
#include "cbs_h265.h"
#include "cbs_sei.h"

Go to the source code of this file.

Functions
static void	cbs_free_user_data_registered (void *opaque, uint8_t *data)
static void	cbs_free_user_data_unregistered (void *opaque, uint8_t *data)
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...
static int	cbs_sei_get_unit (CodedBitstreamContext *ctx, CodedBitstreamFragment *au, int prefix, CodedBitstreamUnit **sei_unit)
static int	cbs_sei_get_message_list (CodedBitstreamContext *ctx, CodedBitstreamUnit *unit, SEIRawMessageList **list)
int	ff_cbs_sei_add_message (CodedBitstreamContext *ctx, CodedBitstreamFragment *au, int prefix, uint32_t payload_type, void *payload_data, AVBufferRef *payload_buf)
	Add an SEI message to an access unit. More...
int	ff_cbs_sei_find_message (CodedBitstreamContext *ctx, CodedBitstreamFragment *au, uint32_t payload_type, SEIRawMessage **iter)
	Iterate over messages with the given payload type in an access unit. More...
static void	cbs_sei_delete_message (SEIRawMessageList *list, int position)
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...

Function Documentation

cbs_free_user_data_registered()

static void cbs_free_user_data_registered ( void *  opaque, uint8_t *  data  )

static

Definition at line 25 of file cbs_sei.c.

Referenced by ff_cbs_sei_alloc_message_payload().

cbs_free_user_data_unregistered()

static void cbs_free_user_data_unregistered ( void *  opaque, uint8_t *  data  )

static

Definition at line 32 of file cbs_sei.c.

Referenced by ff_cbs_sei_alloc_message_payload().

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 39 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 74 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 99 of file cbs_sei.c.

Referenced by cbs_h264_free_sei(), and cbs_h265_free_sei().

cbs_sei_get_unit()

static int cbs_sei_get_unit ( CodedBitstreamContext *  ctx, CodedBitstreamFragment *  au, int  prefix, CodedBitstreamUnit **  sei_unit  )

static

Definition at line 109 of file cbs_sei.c.

Referenced by ff_cbs_sei_add_message().

cbs_sei_get_message_list()

static int cbs_sei_get_message_list ( CodedBitstreamContext *  ctx, CodedBitstreamUnit *  unit, SEIRawMessageList **  list  )

static

Definition at line 218 of file cbs_sei.c.

Referenced by ff_cbs_sei_add_message(), ff_cbs_sei_delete_message_type(), and ff_cbs_sei_find_message().

ff_cbs_sei_add_message()

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

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.

Takes a new reference to payload_buf, if set. If payload_buf is NULL then the new message will not be reference counted.

Definition at line 247 of file cbs_sei.c.

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

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 297 of file cbs_sei.c.

Referenced by h264_metadata_handle_display_orientation().

cbs_sei_delete_message()

static void cbs_sei_delete_message ( SEIRawMessageList *  list, int  position  )

static

Definition at line 330 of file cbs_sei.c.

Referenced by ff_cbs_sei_delete_message_type().

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 350 of file cbs_sei.c.

Referenced by h264_metadata_handle_display_orientation(), and h264_metadata_update_fragment().