Packet structure. More...

#include <compression.h>

Data Fields
gavl_buffer_t	buf
	Data.
uint32_t	flags
	ORed combination of GAVL_PACKET_* flags.
int64_t	position
	Position of the packet in the file. The exact meaning is format dependent.
int64_t	pts
	Presentation time.
int64_t	dts
	Decoding time.
int64_t	pes_pts
	PTS from the PES stream (probably in another scale).
int64_t	duration
	Duration of the contained frame.
uint32_t	field2_offset
	Offset of field 2 for field pictures.
uint32_t	header_size
	Size of a repeated global header (or 0).
uint32_t	sequence_end_pos
	Position of sequence end code if any.
gavl_interlace_mode_t	interlace_mode
	Interlace mode for mixed interlacing.
gavl_timecode_t	timecode
	Timecode.
gavl_rectangle_i_t	src_rect
	Rectangle to take from a video frame.
int32_t	dst_x
	X-coordinate in the destination frame (for overlays).
int32_t	dst_y
	Y-coordinate in the destination frame (for overlays).
int32_t	id
	ID of the gavf stream where this packet belongs.
int	buf_idx
gavl_packet_extradata_t	ext_data [GAVL_PACKET_MAX_EXTRADATA]

Detailed Description

Packet structure.

This specifies one packet of compressed data. For video streams, each packet must correspond to a video frame. For audio streams, each packet must be the smallest unit, which can be decoded independently and for which a duration is known.

The typical usage of a packet is to memset() it to zero in the beginning. Then for each packet call gavl_packet_alloc to ensure that enough data is allocated. At the very end call gavl_packet_free to free all memory.

Field Documentation

◆ buf

gavl_buffer_t gavl_packet_s::buf

Data.

◆ flags

uint32_t gavl_packet_s::flags

ORed combination of GAVL_PACKET_* flags.

◆ position

int64_t gavl_packet_s::position

Position of the packet in the file. The exact meaning is format dependent.

◆ pts

int64_t gavl_packet_s::pts

Presentation time.

◆ dts

int64_t gavl_packet_s::dts

Decoding time.

◆ pes_pts

int64_t gavl_packet_s::pes_pts

PTS from the PES stream (probably in another scale).

◆ duration

int64_t gavl_packet_s::duration

Duration of the contained frame.

◆ field2_offset

uint32_t gavl_packet_s::field2_offset

Offset of field 2 for field pictures.

◆ header_size

uint32_t gavl_packet_s::header_size

Size of a repeated global header (or 0).

◆ sequence_end_pos

uint32_t gavl_packet_s::sequence_end_pos

Position of sequence end code if any.

◆ interlace_mode

gavl_interlace_mode_t gavl_packet_s::interlace_mode

Interlace mode for mixed interlacing.

◆ timecode

gavl_timecode_t gavl_packet_s::timecode

Timecode.

◆ src_rect

gavl_rectangle_i_t gavl_packet_s::src_rect

Rectangle to take from a video frame.

◆ dst_x

int32_t gavl_packet_s::dst_x

X-coordinate in the destination frame (for overlays).

◆ dst_y

int32_t gavl_packet_s::dst_y

Y-coordinate in the destination frame (for overlays).

◆ id

int32_t gavl_packet_s::id

ID of the gavf stream where this packet belongs.

The documentation for this struct was generated from the following file:

compression.h

Data Fields