#include <string.h>
#include "libavutil/avassert.h"
#include "libavutil/common.h"
#include "libavutil/internal.h"
#include "libavutil/mathematics.h"
#include "libavutil/mem.h"
#include "bytestream.h"
#include "internal.h"
#include "packet.h"
#include "packet_internal.h"

Macros
#define	ALLOC_MALLOC(data, size) data = av_malloc(size)

#define	ALLOC_BUF(data, size)

#define	DUP_DATA(dst, src, size, padding, ALLOC)

#define	FF_MERGE_MARKER 0x8c4d9d108e25e9feULL

Functions
void	av_init_packet (AVPacket *pkt)
	Initialize optional fields of a packet with default values. More...

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

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

static int	packet_alloc (AVBufferRef **buf, int size)

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...

static int	copy_packet_data (AVPacket pkt, const AVPacket src, int dup)

int	av_copy_packet_side_data (AVPacket pkt, const AVPacket src)

int	av_dup_packet (AVPacket *pkt)

int	av_copy_packet (AVPacket dst, const AVPacket src)

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

FF_DISABLE_DEPRECATION_WARNINGS void	av_free_packet (AVPacket *pkt)

FF_ENABLE_DEPRECATION_WARNINGS 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...

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

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

const char *	av_packet_side_data_name (enum AVPacketSideDataType type)

int	av_packet_merge_side_data (AVPacket *pkt)

int	av_packet_split_side_data (AVPacket *pkt)

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

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

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

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

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

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

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

void	av_packet_move_ref (AVPacket dst, AVPacket src)
	Move every field in src to dst and reset src. 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 src_tb, AVRational dst_tb)
	Convert valid timing fields (timestamps / durations) in a packet from one timebase to another. More...

int	avpriv_packet_list_put (AVPacketList packet_buffer, AVPacketList plast_pktl, AVPacket pkt, int(copy)(AVPacket dst, const AVPacket src), int flags)
	Append an AVPacket to the list. More...

int	avpriv_packet_list_get (AVPacketList pkt_buffer, AVPacketList pkt_buffer_end, AVPacket *pkt)
	Remove the oldest AVPacket in the list and return it. More...

void	avpriv_packet_list_free (AVPacketList pkt_buf, AVPacketList pkt_buf_end)
	Wipe the list and unref all the packets in it. More...

int	ff_side_data_set_encoder_stats (AVPacket pkt, int quality, int64_t error, int error_count, int pict_type)

int	ff_side_data_set_prft (AVPacket *pkt, int64_t timestamp)

Macro Definition Documentation

#define ALLOC_MALLOC	(	data,
		size
	)	data = av_malloc(size)

Definition at line 173 of file avpacket.c.

Referenced by av_copy_packet_side_data().

#define ALLOC_BUF	(	data,
		size
	)

Value:

do {                                         \
    av_buffer_realloc(&pkt->buf, size);      \
    data = pkt->buf ? pkt->buf->data : NULL; \
} while (0)

Definition at line 174 of file avpacket.c.

Referenced by copy_packet_data().

#define DUP_DATA	(	dst,
		src,
		size,
		padding,
		ALLOC
	)

Value:

do {                                                                \
        void *data;                                                     \
        if (padding) {                                                  \
            if ((unsigned)(size) >                                      \
                (unsigned)(size) + AV_INPUT_BUFFER_PADDING_SIZE)        \
                goto failed_alloc;                                      \
            ALLOC(data, size + AV_INPUT_BUFFER_PADDING_SIZE);           \
        } else {                                                        \
            ALLOC(data, size);                                          \
        }                                                               \
        if (!data)                                                      \
            goto failed_alloc;                                          \
        memcpy(data, src, size);                                        \
        if (padding)                                                    \
            memset((uint8_t *)data + size, 0,                           \
                   AV_INPUT_BUFFER_PADDING_SIZE);                       \
        dst = data;                                                     \
    } while (0)

Definition at line 180 of file avpacket.c.

Referenced by av_copy_packet_side_data(), and copy_packet_data().

#define FF_MERGE_MARKER 0x8c4d9d108e25e9feULL

Definition at line 410 of file avpacket.c.

Referenced by av_packet_merge_side_data(), and av_packet_split_side_data().

Function Documentation

static int packet_alloc	(	AVBufferRef **	buf,
		int	size
	)

static

Definition at line 73 of file avpacket.c.

Referenced by av_new_packet(), av_packet_make_refcounted(), av_packet_make_writable(), and av_packet_ref().

static int copy_packet_data	(	AVPacket *	pkt,
		const AVPacket *	src,
		int	dup
	)

static

Definition at line 201 of file avpacket.c.

Referenced by av_copy_packet(), and av_dup_packet().

int av_copy_packet_side_data	(	AVPacket *	pkt,
		const AVPacket *	src
	)

Definition at line 229 of file avpacket.c.

Referenced by copy_packet_data().

int av_dup_packet ( AVPacket * pkt )

Definition at line 254 of file avpacket.c.

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

Definition at line 265 of file avpacket.c.

FF_DISABLE_DEPRECATION_WARNINGS void av_free_packet ( AVPacket * pkt )

Definition at line 284 of file avpacket.c.

int av_packet_merge_side_data ( AVPacket * pkt )

Definition at line 412 of file avpacket.c.

int av_packet_split_side_data ( AVPacket * pkt )

Definition at line 447 of file avpacket.c.

int avpriv_packet_list_put	(	AVPacketList **	head,
		AVPacketList **	tail,
		AVPacket *	pkt,
		int()(AVPacket dst, const AVPacket *src)	copy,
		int	flags
	)

Append an AVPacket to the list.

Parameters

head	List head element
tail	List tail element
pkt	The packet being appended. The data described in it will be made reference counted if it isn't already.
copy	A callback to copy the contents of the packet to the list. May be null, in which case the packet's reference will be moved to the list.

Returns: 0 on success, negative AVERROR value on failure. On failure, the packet and the list are unchanged.

Definition at line 729 of file avpacket.c.

Referenced by aiff_write_packet(), av_read_frame(), avformat_find_stream_info(), avformat_queue_attached_pictures(), extract_packet_props(), ff_read_packet(), flac_write_packet(), matroska_parse_frame(), matroska_parse_rm_audio(), matroska_parse_webvtt(), mp3_write_packet(), parse_packet(), and tta_write_packet().

int avpriv_packet_list_get	(	AVPacketList **	head,
		AVPacketList **	tail,
		AVPacket *	pkt
	)

Remove the oldest AVPacket in the list and return it.

Note: The pkt will be overwritten completely on success. The caller owns the packet and must unref it by itself.

Parameters

head	List head element
tail	List tail element
pkt	Pointer to an AVPacket struct

Returns: 0 on success, and a packet is returned. AVERROR(EAGAIN) if the list was empty.

Definition at line 766 of file avpacket.c.

Referenced by av_read_frame(), extract_packet_props(), ff_decode_frame_props(), ff_read_packet(), flac_queue_flush(), matroska_deliver_packet(), mp3_queue_flush(), read_frame_internal(), and tta_queue_flush().

void avpriv_packet_list_free	(	AVPacketList **	head,
		AVPacketList **	tail
	)

Wipe the list and unref all the packets in it.

Parameters

head	List head element
tail	List tail element

Definition at line 782 of file avpacket.c.

Referenced by aiff_deinit(), avcodec_close(), avcodec_flush_buffers(), flac_deinit(), flush_packet_queue(), matroska_clear_queue(), mp3_deinit(), and tta_deinit().

int ff_side_data_set_encoder_stats	(	AVPacket *	pkt,
		int	quality,
		int64_t *	error,
		int	error_count,
		int	pict_type
	)

Definition at line 796 of file avpacket.c.

Referenced by dnxhd_encode_picture(), eb_receive_packet(), encode_frame(), ff_mpv_encode_picture(), ff_qsv_encode(), libkvazaar_encode(), libx265_encode_frame(), process_output_surface(), storeframe(), svq1_encode_frame(), X264_frame(), XAVS_frame(), and xvid_encode_frame().

int ff_side_data_set_prft	(	AVPacket *	pkt,
		int64_t	timestamp
	)

Definition at line 821 of file avpacket.c.

Referenced by X264_frame().

Macros

Functions

Macro Definition Documentation

Function Documentation