libavcodec/xiph.h File Reference

#include "libavutil/common.h"

Go to the source code of this file.

Functions
int	ff_split_xiph_headers (uint8_t *extradata, int extradata_size, int first_header_size, uint8_t *header_start[3], int header_len[3])
	Splits a single extradata buffer into the three headers that most Xiph codecs use.

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Function Documentation

int ff_split_xiph_headers	(	uint8_t *	extradata,
		int	extradata_size,
		int	first_header_size,
		uint8_t *	header_start[3],
		int	header_len[3]
	)

Splits a single extradata buffer into the three headers that most Xiph codecs use.

(e.g. Theora and Vorbis) Works both with Matroska's packing and lavc's packing.

Parameters:

[in]	extradata	The single chunk that combines all three headers
[in]	extradata_size	The size of the extradata buffer
[in]	first_header_size	The size of the first header, used to differentiate between the Matroska packing and lavc packing.
[out]	header_start	Pointers to the start of the three separate headers.
[out]	header_len	The sizes of each of the three headers.

Returns:

On error a negative value is returned, on success zero.

Definition at line 24 of file xiph.c.

Referenced by ogg_write_header(), put_xiph_codecpriv(), and vorbis_decode_init().