rawutils.c File Reference

#include "libavutil/intreadwrite.h"
#include "libavcodec/packet.h"
#include "avformat.h"
#include "rawutils.h"

Go to the source code of this file.

Functions
int	ff_reshuffle_raw_rgb (AVFormatContext *s, AVPacket **ppkt, AVCodecParameters *par, int expected_stride)
	Reshuffles the lines to use the user specified stride. More...
int	ff_get_packet_palette (AVFormatContext *s, AVPacket *pkt, int ret, uint32_t *palette)
	Retrieves the palette from a packet, either from side data, or appended to the video data in the packet itself (raw video only). More...

Function Documentation

ff_reshuffle_raw_rgb()

int ff_reshuffle_raw_rgb	(	AVFormatContext *	s,
		AVPacket **	ppkt,
		AVCodecParameters *	par,
		int	expected_stride
	)

Reshuffles the lines to use the user specified stride.

Parameters

ppkt	input and output packet

Returns

negative error code or 0 if no new packet was allocated non-zero if a new packet was allocated and ppkt has to be freed CONTAINS_PAL if in addition to a new packet the old contained a palette

Definition at line 27 of file rawutils.c.

Referenced by avi_write_packet(), and mov_write_packet().

ff_get_packet_palette()

int ff_get_packet_palette	(	AVFormatContext *	s,
		AVPacket *	pkt,
		int	ret,
		uint32_t *	palette
	)

Retrieves the palette from a packet, either from side data, or appended to the video data in the packet itself (raw video only).

It is commonly used after a call to ff_reshuffle_raw_rgb().

Use 0 for the ret parameter to check for side data only.

Parameters

pkt	pointer to packet before calling ff_reshuffle_raw_rgb()
ret	return value from ff_reshuffle_raw_rgb(), or 0
palette	pointer to palette buffer

Returns

negative error code or 1 if the packet has a palette, else 0

Definition at line 71 of file rawutils.c.

Referenced by avi_write_packet(), and mov_write_packet().