Types and functions for working with AVPacket. More...

Data Structures
struct	AVPacketSideData

struct	AVPacket
	This structure stores compressed data. More...

Macros
#define	AV_PKT_DATA_QUALITY_FACTOR AV_PKT_DATA_QUALITY_STATS

#define	AV_PKT_FLAG_KEY 0x0001
	The packet contains a keyframe. More...

#define	AV_PKT_FLAG_CORRUPT 0x0002
	The packet content is corrupted. More...

#define	AV_PKT_FLAG_DISCARD 0x0004
	Flag is used to discard packets which are required to maintain valid decoder state but are not required for output and should be dropped after decoding. More...

#define	AV_PKT_FLAG_TRUSTED 0x0008
	The packet comes from a trusted source. More...

#define	AV_PKT_FLAG_DISPOSABLE 0x0010
	Flag is used to indicate packets that contain frames that can be discarded by the decoder. More...

Enumerations
enum	AVPacketSideDataType { AV_PKT_DATA_PALETTE , AV_PKT_DATA_NEW_EXTRADATA , AV_PKT_DATA_PARAM_CHANGE , AV_PKT_DATA_H263_MB_INFO , AV_PKT_DATA_REPLAYGAIN , AV_PKT_DATA_DISPLAYMATRIX , AV_PKT_DATA_STEREO3D , AV_PKT_DATA_AUDIO_SERVICE_TYPE , AV_PKT_DATA_QUALITY_STATS , AV_PKT_DATA_FALLBACK_TRACK , AV_PKT_DATA_CPB_PROPERTIES , AV_PKT_DATA_SKIP_SAMPLES , AV_PKT_DATA_JP_DUALMONO , AV_PKT_DATA_STRINGS_METADATA , AV_PKT_DATA_SUBTITLE_POSITION , AV_PKT_DATA_MATROSKA_BLOCKADDITIONAL , AV_PKT_DATA_WEBVTT_IDENTIFIER , AV_PKT_DATA_WEBVTT_SETTINGS , AV_PKT_DATA_METADATA_UPDATE , AV_PKT_DATA_MPEGTS_STREAM_ID , AV_PKT_DATA_MASTERING_DISPLAY_METADATA , AV_PKT_DATA_SPHERICAL , AV_PKT_DATA_CONTENT_LIGHT_LEVEL , AV_PKT_DATA_A53_CC , AV_PKT_DATA_ENCRYPTION_INIT_INFO , AV_PKT_DATA_ENCRYPTION_INFO , AV_PKT_DATA_AFD , AV_PKT_DATA_PRFT , AV_PKT_DATA_ICC_PROFILE , AV_PKT_DATA_DOVI_CONF , AV_PKT_DATA_S12M_TIMECODE , AV_PKT_DATA_DYNAMIC_HDR10_PLUS , AV_PKT_DATA_NB }

enum	AVSideDataParamChangeFlags { AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE = 0x0004 , AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS = 0x0008 }

Functions
AVPacket *	av_packet_alloc (void)
	Allocate an AVPacket and set its fields to default values. More...

AVPacket *	av_packet_clone (const AVPacket *src)
	Create a new packet that references the same data as src. More...

void	av_packet_free (AVPacket **pkt)
	Free the packet, if the packet is reference counted, it will be unreferenced first. More...

int	av_new_packet (AVPacket *pkt, int size)
	Allocate the payload of a packet and initialize its fields with default values. More...

void	av_shrink_packet (AVPacket *pkt, int size)
	Reduce packet size, correctly zeroing padding. More...

int	av_grow_packet (AVPacket *pkt, int grow_by)
	Increase packet size, correctly zeroing padding. More...

int	av_packet_from_data (AVPacket pkt, uint8_t data, int size)
	Initialize a reference-counted packet from av_malloc()ed data. More...

uint8_t *	av_packet_new_side_data (AVPacket *pkt, enum AVPacketSideDataType type, size_t size)
	Allocate new information of a packet. More...

int	av_packet_add_side_data (AVPacket pkt, enum AVPacketSideDataType type, uint8_t data, size_t size)
	Wrap an existing array as a packet side data. More...

int	av_packet_shrink_side_data (AVPacket *pkt, enum AVPacketSideDataType type, size_t size)
	Shrink the already allocated side data buffer. More...

uint8_t *	av_packet_get_side_data (const AVPacket pkt, enum AVPacketSideDataType type, size_t size)
	Get side information from packet. More...

const char *	av_packet_side_data_name (enum AVPacketSideDataType type)

uint8_t *	av_packet_pack_dictionary (AVDictionary dict, size_t size)
	Pack a dictionary for use in side_data. More...

int	av_packet_unpack_dictionary (const uint8_t data, size_t size, AVDictionary *dict)
	Unpack a dictionary from side_data. More...

void	av_packet_free_side_data (AVPacket *pkt)
	Convenience function to free all the side data stored. More...

int	av_packet_ref (AVPacket dst, const AVPacket src)
	Setup a new reference to the data described by a given packet. More...

void	av_packet_unref (AVPacket *pkt)
	Wipe the packet. More...

void	av_packet_move_ref (AVPacket dst, AVPacket src)
	Move every field in src to dst and reset src. More...

int	av_packet_copy_props (AVPacket dst, const AVPacket src)
	Copy only "properties" fields from src to dst. More...

int	av_packet_make_refcounted (AVPacket *pkt)
	Ensure the data described by a given packet is reference counted. More...

int	av_packet_make_writable (AVPacket *pkt)
	Create a writable reference for the data described by a given packet, avoiding data copy if possible. More...

void	av_packet_rescale_ts (AVPacket *pkt, AVRational tb_src, AVRational tb_dst)
	Convert valid timing fields (timestamps / durations) in a packet from one timebase to another. More...

Detailed Description

Types and functions for working with AVPacket.

Macro Definition Documentation

◆ AV_PKT_DATA_QUALITY_FACTOR

#define AV_PKT_DATA_QUALITY_FACTOR AV_PKT_DATA_QUALITY_STATS

Definition at line 313 of file packet.h.

◆ AV_PKT_FLAG_KEY

#define AV_PKT_FLAG_KEY 0x0001

The packet contains a keyframe.

Definition at line 429 of file packet.h.

◆ AV_PKT_FLAG_CORRUPT

#define AV_PKT_FLAG_CORRUPT 0x0002

The packet content is corrupted.

Definition at line 430 of file packet.h.

◆ AV_PKT_FLAG_DISCARD

#define AV_PKT_FLAG_DISCARD 0x0004

Flag is used to discard packets which are required to maintain valid decoder state but are not required for output and should be dropped after decoding.

Definition at line 436 of file packet.h.

◆ AV_PKT_FLAG_TRUSTED

#define AV_PKT_FLAG_TRUSTED 0x0008

The packet comes from a trusted source.

Otherwise-unsafe constructs such as arbitrary pointers to data outside the packet may be followed.

Definition at line 443 of file packet.h.

◆ AV_PKT_FLAG_DISPOSABLE

#define AV_PKT_FLAG_DISPOSABLE 0x0010

Flag is used to indicate packets that contain frames that can be discarded by the decoder.

I.e. Non-reference frames.

Definition at line 448 of file packet.h.

Enumeration Type Documentation

◆ AVPacketSideDataType

enum AVPacketSideDataType

Enumerator
AV_PKT_DATA_PALETTE	An AV_PKT_DATA_PALETTE side data packet contains exactly AVPALETTE_SIZE bytes worth of palette. This side data signals that a new palette is present.
AV_PKT_DATA_NEW_EXTRADATA	The AV_PKT_DATA_NEW_EXTRADATA is used to notify the codec or the format that the extradata buffer was changed and the receiving side should act upon it appropriately. The new extradata is embedded in the side data buffer and should be immediately used for processing the current frame or packet.
AV_PKT_DATA_PARAM_CHANGE	An AV_PKT_DATA_PARAM_CHANGE side data packet is laid out as follows: u32le param_flags if (param_flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT) s32le channel_count if (param_flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT) u64le channel_layout if (param_flags & AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE) s32le sample_rate if (param_flags & AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS) s32le width s32le height
AV_PKT_DATA_H263_MB_INFO	An AV_PKT_DATA_H263_MB_INFO side data packet contains a number of structures with info about macroblocks relevant to splitting the packet into smaller packets on macroblock edges (e.g. as for RFC 2190). That is, it does not necessarily contain info about all macroblocks, as long as the distance between macroblocks in the info is smaller than the target payload size. Each MB info structure is 12 bytes, and is laid out as follows: u32le bit offset from the start of the packet u8 current quantizer at the start of the macroblock u8 GOB number u16le macroblock address within the GOB u8 horizontal MV predictor u8 vertical MV predictor u8 horizontal MV predictor for block number 3 u8 vertical MV predictor for block number 3
AV_PKT_DATA_REPLAYGAIN	This side data should be associated with an audio stream and contains ReplayGain information in form of the AVReplayGain struct.
AV_PKT_DATA_DISPLAYMATRIX	This side data contains a 3x3 transformation matrix describing an affine transformation that needs to be applied to the decoded video frames for correct presentation. See libavutil/display.h for a detailed description of the data.
AV_PKT_DATA_STEREO3D	This side data should be associated with a video stream and contains Stereoscopic 3D information in form of the AVStereo3D struct.
AV_PKT_DATA_AUDIO_SERVICE_TYPE	This side data should be associated with an audio stream and corresponds to enum AVAudioServiceType.
AV_PKT_DATA_QUALITY_STATS	This side data contains quality related information from the encoder. u32le quality factor of the compressed frame. Allowed range is between 1 (good) and FF_LAMBDA_MAX (bad). u8 picture type u8 error count u16 reserved u64le[error count] sum of squared differences between encoder in and output
AV_PKT_DATA_FALLBACK_TRACK	This side data contains an integer value representing the stream index of a "fallback" track. A fallback track indicates an alternate track to use when the current track can not be decoded for some reason. e.g. no decoder available for codec.
AV_PKT_DATA_CPB_PROPERTIES	This side data corresponds to the AVCPBProperties struct.
AV_PKT_DATA_SKIP_SAMPLES	Recommmends skipping the specified number of samples. u32le number of samples to skip from start of this packet u32le number of samples to skip from end of this packet u8 reason for start skip u8 reason for end skip (0=padding silence, 1=convergence)
AV_PKT_DATA_JP_DUALMONO	An AV_PKT_DATA_JP_DUALMONO side data packet indicates that the packet may contain "dual mono" audio specific to Japanese DTV and if it is true, recommends only the selected channel to be used. u8 selected channels (0=mail/left, 1=sub/right, 2=both)
AV_PKT_DATA_STRINGS_METADATA	A list of zero terminated key/value strings. There is no end marker for the list, so it is required to rely on the side data size to stop.
AV_PKT_DATA_SUBTITLE_POSITION	Subtitle event position. u32le x1 u32le y1 u32le x2 u32le y2
AV_PKT_DATA_MATROSKA_BLOCKADDITIONAL	Data found in BlockAdditional element of matroska container. There is no end marker for the data, so it is required to rely on the side data size to recognize the end. 8 byte id (as found in BlockAddId) followed by data.
AV_PKT_DATA_WEBVTT_IDENTIFIER	The optional first identifier line of a WebVTT cue.
AV_PKT_DATA_WEBVTT_SETTINGS	The optional settings (rendering instructions) that immediately follow the timestamp specifier of a WebVTT cue.
AV_PKT_DATA_METADATA_UPDATE	A list of zero terminated key/value strings. There is no end marker for the list, so it is required to rely on the side data size to stop. This side data includes updated metadata which appeared in the stream.
AV_PKT_DATA_MPEGTS_STREAM_ID	MPEGTS stream ID as uint8_t, this is required to pass the stream ID information from the demuxer to the corresponding muxer.
AV_PKT_DATA_MASTERING_DISPLAY_METADATA	Mastering display metadata (based on SMPTE-2086:2014). This metadata should be associated with a video stream and contains data in the form of the AVMasteringDisplayMetadata struct.
AV_PKT_DATA_SPHERICAL	This side data should be associated with a video stream and corresponds to the AVSphericalMapping structure.
AV_PKT_DATA_CONTENT_LIGHT_LEVEL	Content light level (based on CTA-861.3). This metadata should be associated with a video stream and contains data in the form of the AVContentLightMetadata struct.
AV_PKT_DATA_A53_CC	ATSC A53 Part 4 Closed Captions. This metadata should be associated with a video stream. A53 CC bitstream is stored as uint8_t in AVPacketSideData.data. The number of bytes of CC data is AVPacketSideData.size.
AV_PKT_DATA_ENCRYPTION_INIT_INFO	This side data is encryption initialization data. The format is not part of ABI, use av_encryption_init_info_* methods to access.
AV_PKT_DATA_ENCRYPTION_INFO	This side data contains encryption info for how to decrypt the packet. The format is not part of ABI, use av_encryption_info_* methods to access.
AV_PKT_DATA_AFD	Active Format Description data consisting of a single byte as specified in ETSI TS 101 154 using AVActiveFormatDescription enum.
AV_PKT_DATA_PRFT	Producer Reference Time data corresponding to the AVProducerReferenceTime struct, usually exported by some encoders (on demand through the prft flag set in the AVCodecContext export_side_data field).
AV_PKT_DATA_ICC_PROFILE	ICC profile data consisting of an opaque octet buffer following the format described by ISO 15076-1.
AV_PKT_DATA_DOVI_CONF	DOVI configuration ref: dolby-vision-bitstreams-within-the-iso-base-media-file-format-v2.1.2, section 2.2 dolby-vision-bitstreams-in-mpeg-2-transport-stream-multiplex-v1.2, section 3.3 Tags are stored in struct AVDOVIDecoderConfigurationRecord.
AV_PKT_DATA_S12M_TIMECODE	Timecode which conforms to SMPTE ST 12-1:2014. The data is an array of 4 uint32_t where the first uint32_t describes how many (1-3) of the other timecodes are used. The timecode format is described in the documentation of av_timecode_get_smpte_from_framenum() function in libavutil/timecode.h.
AV_PKT_DATA_DYNAMIC_HDR10_PLUS	HDR10+ dynamic metadata associated with a video frame. The metadata is in the form of the AVDynamicHDRPlus struct and contains information for color volume transform - application 4 of SMPTE 2094-40:2016 standard.
AV_PKT_DATA_NB	The number of side data types. This is not part of the public API/ABI in the sense that it may change when new side data types are added. This must stay the last enum value. If its value becomes huge, some code using it needs to be updated as it assumes it to be smaller than other limits.

Definition at line 41 of file packet.h.

◆ AVSideDataParamChangeFlags

enum AVSideDataParamChangeFlags

Enumerator
AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE
AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS

Definition at line 450 of file packet.h.

Function Documentation

◆ av_packet_alloc()

AVPacket * av_packet_alloc ( void )

Allocate an AVPacket and set its fields to default values.

The resulting struct must be freed using av_packet_free().

Returns: An AVPacket filled with default values or NULL on failure.

Note: this only allocates the AVPacket itself, not the data buffers. Those must be allocated through other means such as av_new_packet.

See also: av_new_packet

Examples: decode_audio.c, decode_video.c, demuxing_decoding.c, encode_audio.c, encode_video.c, filtering_audio.c, filtering_video.c, hw_decode.c, muxing.c, qsvdec.c, remuxing.c, transcode_aac.c, transcoding.c, vaapi_encode.c, and vaapi_transcode.c.

Referenced by add_stream(), encode_write(), init_filters(), init_packet(), and main().

◆ av_packet_clone()

AVPacket * av_packet_clone ( const AVPacket * src )

Create a new packet that references the same data as src.

This is a shortcut for av_packet_alloc()+av_packet_ref().

Returns: newly created AVPacket on success, NULL on error.

See also: av_packet_alloc; av_packet_ref

◆ av_packet_free()

void av_packet_free ( AVPacket ** pkt )

Free the packet, if the packet is reference counted, it will be unreferenced first.

Parameters

pkt	packet to be freed. The pointer will be set to NULL.

Note: passing NULL is a no-op.

Examples: decode_audio.c, decode_video.c, demuxing_decoding.c, encode_audio.c, encode_video.c, filtering_audio.c, filtering_video.c, hw_decode.c, muxing.c, qsvdec.c, remuxing.c, transcode_aac.c, transcoding.c, vaapi_encode.c, and vaapi_transcode.c.

Referenced by close_stream(), decode_audio_frame(), encode_audio_frame(), encode_write(), and main().

◆ av_new_packet()

int av_new_packet	(	AVPacket *	pkt,
		int	size
	)

Allocate the payload of a packet and initialize its fields with default values.

Parameters

pkt	packet
size	wanted payload size

Returns: 0 if OK, AVERROR_xxx otherwise

◆ av_shrink_packet()

void av_shrink_packet	(	AVPacket *	pkt,
		int	size
	)

Reduce packet size, correctly zeroing padding.

Parameters

pkt	packet
size	new size

◆ av_grow_packet()

int av_grow_packet	(	AVPacket *	pkt,
		int	grow_by
	)

Increase packet size, correctly zeroing padding.

Parameters

pkt	packet
grow_by	number of bytes by which to increase the size of the packet

◆ av_packet_from_data()

int av_packet_from_data	(	AVPacket *	pkt,
		uint8_t *	data,
		int	size
	)

Initialize a reference-counted packet from av_malloc()ed data.

Parameters

pkt	packet to be initialized. This function will set the data, size, and buf fields, all others are left untouched.
data	Data allocated by av_malloc() to be used as packet data. If this function returns successfully, the data is owned by the underlying AVBuffer. The caller may not access the data through other means.
size	size of data in bytes, without the padding. I.e. the full buffer size is assumed to be size + AV_INPUT_BUFFER_PADDING_SIZE.

Returns: 0 on success, a negative AVERROR on error

◆ av_packet_new_side_data()

uint8_t * av_packet_new_side_data	(	AVPacket *	pkt,
		enum AVPacketSideDataType	type,
		size_t	size
	)

Allocate new information of a packet.

Parameters

pkt	packet
type	side information type
size	side information size

Returns: pointer to fresh allocated data or NULL otherwise

◆ av_packet_add_side_data()

int av_packet_add_side_data	(	AVPacket *	pkt,
		enum AVPacketSideDataType	type,
		uint8_t *	data,
		size_t	size
	)

Wrap an existing array as a packet side data.

Parameters

pkt	packet
type	side information type
data	the side data array. It must be allocated with the av_malloc() family of functions. The ownership of the data is transferred to pkt.
size	side information size

Returns: a non-negative number on success, a negative AVERROR code on failure. On failure, the packet is unchanged and the data remains owned by the caller.

◆ av_packet_shrink_side_data()

int av_packet_shrink_side_data	(	AVPacket *	pkt,
		enum AVPacketSideDataType	type,
		size_t	size
	)

Shrink the already allocated side data buffer.

Parameters

pkt	packet
type	side information type
size	new side information size

Returns: 0 on success, < 0 on failure

◆ av_packet_get_side_data()

uint8_t * av_packet_get_side_data	(	const AVPacket *	pkt,
		enum AVPacketSideDataType	type,
		size_t *	size
	)

Get side information from packet.

Parameters

pkt	packet
type	desired side information type
size	If supplied, *size will be set to the size of the side data or to zero if the desired side data is not present.

Returns: pointer to data if present or NULL otherwise

◆ av_packet_side_data_name()

const char * av_packet_side_data_name ( enum AVPacketSideDataType type )

◆ av_packet_pack_dictionary()

uint8_t * av_packet_pack_dictionary	(	AVDictionary *	dict,
		size_t *	size
	)

Pack a dictionary for use in side_data.

Parameters

dict	The dictionary to pack.
size	pointer to store the size of the returned data

Returns: pointer to data if successful, NULL otherwise

◆ av_packet_unpack_dictionary()

int av_packet_unpack_dictionary	(	const uint8_t *	data,
		size_t	size,
		AVDictionary **	dict
	)

Unpack a dictionary from side_data.

Parameters

data	data from side_data
size	size of the data
dict	the metadata storage dictionary

Returns: 0 on success, < 0 on failure

◆ av_packet_free_side_data()

void av_packet_free_side_data ( AVPacket * pkt )

Convenience function to free all the side data stored.

All the other fields stay untouched.

Parameters

pkt packet

◆ av_packet_ref()

int av_packet_ref	(	AVPacket *	dst,
		const AVPacket *	src
	)

Setup a new reference to the data described by a given packet.

If src is reference-counted, setup dst as a new reference to the buffer in src. Otherwise allocate a new buffer in dst and copy the data from src into it.

All the other fields are copied from src.

See also: av_packet_unref

Parameters

dst	Destination packet. Will be completely overwritten.
src	Source packet

Returns: 0 on success, a negative AVERROR on error. On error, dst will be blank (as if returned by av_packet_alloc()).

◆ av_packet_unref()

void av_packet_unref ( AVPacket * pkt )

Wipe the packet.

Unreference the buffer referenced by the packet and reset the remaining packet fields to their default values.

Parameters

pkt	The packet to be unreferenced.

Examples: demuxing_decoding.c, encode_audio.c, encode_video.c, filtering_audio.c, filtering_video.c, hw_decode.c, qsvdec.c, remuxing.c, transcoding.c, vaapi_encode.c, and vaapi_transcode.c.

Referenced by encode(), encode_write(), encode_write_frame(), and main().

◆ av_packet_move_ref()

void av_packet_move_ref	(	AVPacket *	dst,
		AVPacket *	src
	)

Move every field in src to dst and reset src.

See also: av_packet_unref

Parameters

src	Source packet, will be reset
dst	Destination packet

◆ av_packet_copy_props()

int av_packet_copy_props	(	AVPacket *	dst,
		const AVPacket *	src
	)

Copy only "properties" fields from src to dst.

Properties for the purpose of this function are all the fields beside those related to the packet data (buf, data, size)

Parameters

dst	Destination packet
src	Source packet

Returns: 0 on success AVERROR on failure.

◆ av_packet_make_refcounted()

int av_packet_make_refcounted ( AVPacket * pkt )

Ensure the data described by a given packet is reference counted.

Note: This function does not ensure that the reference will be writable. Use av_packet_make_writable instead for that purpose.

See also: av_packet_ref; av_packet_make_writable

Parameters

pkt	packet whose data should be made reference counted.

Returns: 0 on success, a negative AVERROR on error. On failure, the packet is unchanged.

◆ av_packet_make_writable()

int av_packet_make_writable ( AVPacket * pkt )

Create a writable reference for the data described by a given packet, avoiding data copy if possible.

Parameters

pkt	Packet whose data should be made writable.

Returns: 0 on success, a negative AVERROR on failure. On failure, the packet is unchanged.

◆ av_packet_rescale_ts()

void av_packet_rescale_ts	(	AVPacket *	pkt,
		AVRational	tb_src,
		AVRational	tb_dst
	)

Convert valid timing fields (timestamps / durations) in a packet from one timebase to another.

Timestamps with unknown values (AV_NOPTS_VALUE) will be ignored.

Parameters

pkt	packet on which the conversion will be performed
tb_src	source timebase, in which the timing fields in pkt are expressed
tb_dst	destination timebase, to which the timing fields will be converted

Examples: muxing.c, remuxing.c, transcoding.c, and vaapi_transcode.c.

Referenced by encode_write(), encode_write_frame(), main(), and write_frame().

Data Structures

Macros

Enumerations

Functions

Detailed Description

Macro Definition Documentation

◆ AV_PKT_DATA_QUALITY_FACTOR

◆ AV_PKT_FLAG_KEY

◆ AV_PKT_FLAG_CORRUPT

◆ AV_PKT_FLAG_DISCARD

◆ AV_PKT_FLAG_TRUSTED

◆ AV_PKT_FLAG_DISPOSABLE

Enumeration Type Documentation

◆ AVPacketSideDataType

◆ AVSideDataParamChangeFlags

Function Documentation

◆ av_packet_alloc()

◆ av_packet_clone()

◆ av_packet_free()

◆ av_new_packet()

◆ av_shrink_packet()

◆ av_grow_packet()

◆ av_packet_from_data()

◆ av_packet_new_side_data()

◆ av_packet_add_side_data()

◆ av_packet_shrink_side_data()

◆ av_packet_get_side_data()

◆ av_packet_side_data_name()

◆ av_packet_pack_dictionary()

◆ av_packet_unpack_dictionary()

◆ av_packet_free_side_data()

◆ av_packet_ref()

◆ av_packet_unref()

◆ av_packet_move_ref()

◆ av_packet_copy_props()

◆ av_packet_make_refcounted()

◆ av_packet_make_writable()

◆ av_packet_rescale_ts()