libavcodec/vorbis.c File Reference

Common code for Vorbis I encoder and decoder. More...

#include "avcodec.h"
#include "get_bits.h"
#include "vorbis.h"

Go to the source code of this file.

Defines
#define	BITSTREAM_READER_LE
Functions
unsigned int	ff_vorbis_nth_root (unsigned int x, unsigned int n)
int	ff_vorbis_len2vlc (uint8_t *bits, uint32_t *codes, unsigned num)
int	ff_vorbis_ready_floor1_list (AVCodecContext *avccontext, vorbis_floor1_entry *list, int values)
static void	render_line_unrolled (intptr_t x, int y, int x1, intptr_t sy, int ady, int adx, float *buf)
static void	render_line (int x0, int y0, int x1, int y1, float *buf)
void	ff_vorbis_floor1_render_list (vorbis_floor1_entry *list, int values, uint16_t *y_list, int *flag, int multiplier, float *out, int samples)

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Detailed Description

Common code for Vorbis I encoder and decoder.

Author:

Denes Balatoni ( dbalatoni programozo hu )

This file is part of FFmpeg.

FFmpeg is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version.

FFmpeg is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with FFmpeg; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

Author:

Denes Balatoni ( dbalatoni programozo hu )

Definition in file vorbis.c.

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Define Documentation

#define BITSTREAM_READER_LE

Definition at line 29 of file vorbis.c.

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Function Documentation

void ff_vorbis_floor1_render_list	(	vorbis_floor1_entry *	list,
		int	values,
		uint16_t *	y_list,
		int *	flag,
		int	multiplier,
		float *	out,
		int	samples
	)

Definition at line 216 of file vorbis.c.

Referenced by floor_encode(), and vorbis_floor1_decode().

int ff_vorbis_len2vlc	(	uint8_t *	bits,
		uint32_t *	codes,
		unsigned	num
	)

Definition at line 57 of file vorbis.c.

Referenced by ready_codebook(), and vorbis_parse_setup_hdr_codebooks().

unsigned int ff_vorbis_nth_root	(	unsigned int	x,
		unsigned int	n
	)

Definition at line 39 of file vorbis.c.

Referenced by cb_lookup_vals(), and vorbis_parse_setup_hdr_codebooks().

int ff_vorbis_ready_floor1_list	(	AVCodecContext *	avccontext,
		vorbis_floor1_entry *	list,
		int	values
	)

Definition at line 126 of file vorbis.c.

Referenced by create_vorbis_context(), and vorbis_parse_setup_hdr_floors().

static void render_line	(	int	x0,
		int	y0,
		int	x1,
		int	y1,
		float *	buf
	)			[static]

Definition at line 189 of file vorbis.c.

Referenced by ff_vorbis_floor1_render_list().

static void render_line_unrolled	(	intptr_t	x,
		int	y,
		int	x1,
		intptr_t	sy,
		int	ady,
		int	adx,
		float *	buf
	)			[inline, static]

Definition at line 166 of file vorbis.c.

Referenced by render_line().