FFmpeg: libavcodec/cbs_sei.h File Reference

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libavcodec

Data Structures | Macros | Typedefs | Functions

cbs_sei.h File Reference

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

Go to the source code of this file.

Data Structures

struct SEIRawFillerPayload

struct SEIRawUserDataRegistered

struct SEIRawUserDataUnregistered

struct SEIRawFramePackingArrangement

struct SEIRawDecodedPictureHash

struct SEIRawMasteringDisplayColourVolume

struct SEIRawContentLightLevelInfo

struct SEIRawAlternativeTransferCharacteristics

struct SEIRawAmbientViewingEnvironment

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...

Macro Definition Documentation

◆ SEI_MESSAGE_TYPE_END

#define SEI_MESSAGE_TYPE_END { .type = -1 }

Definition at line 160 of file cbs_sei.h.

Typedef Documentation

◆ SEIMessageReadFunction

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

Definition at line 134 of file cbs_sei.h.

◆ SEIMessageWriteFunction

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

Definition at line 139 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 2313 of file cbs_h2645.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 40 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 66 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 91 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 267 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 314 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 367 of file cbs_sei.c.

Referenced by h264_metadata_handle_display_orientation(), and h264_metadata_update_fragment().

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