xiph.h File Reference

#include "libavutil/common.h"

Go to the source code of this file.

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

Function Documentation

avpriv_split_xiph_headers()

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

Split 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_init(), put_xiph_codecpriv(), read_huffman_tree(), vorbis_decode_init(), and vorbis_parse_init().