vp56.h File Reference

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Detailed Description

VP5 and VP6 compatible video decoder (common features).

Copyright (C) 2006 Aurelien Jacobs <aurel@gnuage.org>

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

Definition in file vp56.h.

Go to the source code of this file.

Classes
struct	vp56_range_coder_t
struct	vp56_ref_dc_t
struct	vp56_mv
struct	vp56_macroblock_t
struct	vp56_model_t
struct	vp56_context
Typedefs
typedef struct vp56_context	vp56_context_t
typedef struct vp56_mv	vp56_mv_t
typedef void(*	vp56_parse_vector_adjustment_t )(vp56_context_t *s, vp56_mv_t *vect)
typedef int(*	vp56_adjust_t )(int v, int t)
typedef void(*	vp56_filter_t )(vp56_context_t *s, uint8_t *dst, uint8_t *src, int offset1, int offset2, int stride, vp56_mv_t mv, int mask, int select, int luma)
typedef void(*	vp56_parse_coeff_t )(vp56_context_t *s)
typedef void(*	vp56_default_models_init_t )(vp56_context_t *s)
typedef void(*	vp56_parse_vector_models_t )(vp56_context_t *s)
typedef void(*	vp56_parse_coeff_models_t )(vp56_context_t *s)
typedef int(*	vp56_parse_header_t )(vp56_context_t *s, uint8_t *buf, int buf_size, int *golden_frame)
Functions
void	vp56_init (AVCodecContext *avctx, int flip, int has_alpha)
int	vp56_free (AVCodecContext *avctx)
void	vp56_init_dequant (vp56_context_t *s, int quantizer)
int	vp56_decode_frame (AVCodecContext *avctx, void *data, int *data_size, uint8_t *buf, int buf_size)
static void	vp56_init_range_decoder (vp56_range_coder_t *c, uint8_t *buf, int buf_size)
	vp56 specific range coder implementation
static int	vp56_rac_get_prob (vp56_range_coder_t *c, uint8_t prob)
static int	vp56_rac_get (vp56_range_coder_t *c)
static int	vp56_rac_gets (vp56_range_coder_t *c, int bits)
static int	vp56_rac_gets_nn (vp56_range_coder_t *c, int bits)
static int	vp56_rac_get_tree (vp56_range_coder_t *c, const vp56_tree_t *tree, const uint8_t *probs)

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Typedef Documentation

typedef struct vp56_context vp56_context_t

Definition at line 33 of file vp56.h.

typedef struct vp56_mv vp56_mv_t

Definition at line 34 of file vp56.h.

typedef void(* vp56_parse_vector_adjustment_t)(vp56_context_t *s, vp56_mv_t *vect)

Definition at line 36 of file vp56.h.

typedef int(* vp56_adjust_t)(int v, int t)

Definition at line 38 of file vp56.h.

typedef void(* vp56_filter_t)(vp56_context_t *s, uint8_t *dst, uint8_t *src, int offset1, int offset2, int stride, vp56_mv_t mv, int mask, int select, int luma)

Definition at line 39 of file vp56.h.

typedef void(* vp56_parse_coeff_t)(vp56_context_t *s)

Definition at line 42 of file vp56.h.

typedef void(* vp56_default_models_init_t)(vp56_context_t *s)

Definition at line 43 of file vp56.h.

typedef void(* vp56_parse_vector_models_t)(vp56_context_t *s)

Definition at line 44 of file vp56.h.

typedef void(* vp56_parse_coeff_models_t)(vp56_context_t *s)

Definition at line 45 of file vp56.h.

typedef int(* vp56_parse_header_t)(vp56_context_t *s, uint8_t *buf, int buf_size, int *golden_frame)

Definition at line 46 of file vp56.h.

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Function Documentation

void vp56_init	(	AVCodecContext *	avctx,
		int	flip,
		int	has_alpha
	)

Definition at line 646 of file vp56.c.

Referenced by vp5_decode_init(), and vp6_decode_init().

int vp56_free

(

AVCodecContext *

avctx

)

Definition at line 686 of file vp56.c.

void vp56_init_dequant	(	vp56_context_t *	s,
		int	quantizer
	)

Definition at line 31 of file vp56.c.

Referenced by vp5_parse_header(), and vp6_parse_header().

int vp56_decode_frame	(	AVCodecContext *	avctx,
		void *	data,
		int *	data_size,
		uint8_t *	buf,
		int	buf_size
	)

Definition at line 497 of file vp56.c.

static void vp56_init_range_decoder	(	vp56_range_coder_t *	c,
		uint8_t *	buf,
		int	buf_size
	)			[inline, static]

vp56 specific range coder implementation

Definition at line 182 of file vp56.h.

Referenced by vp5_parse_header(), and vp6_parse_header().

static int vp56_rac_get_prob	(	vp56_range_coder_t *	c,
		uint8_t	prob
	)			[inline, static]

Definition at line 191 of file vp56.h.

Referenced by vp56_parse_mb_type(), vp56_parse_mb_type_models(), vp56_rac_get_tree(), vp5_parse_coeff(), vp5_parse_coeff_models(), vp5_parse_vector_adjustment(), vp5_parse_vector_models(), vp6_parse_coeff(), vp6_parse_coeff_models(), vp6_parse_vector_adjustment(), and vp6_parse_vector_models().

static int vp56_rac_get

(

vp56_range_coder_t *

c

)

[inline, static]

Definition at line 216 of file vp56.h.

Referenced by vp56_parse_mb_type_models(), vp56_rac_gets(), vp5_parse_coeff(), vp5_parse_header(), vp6_parse_coeff(), vp6_parse_coeff_models(), and vp6_parse_header().

static int vp56_rac_gets	(	vp56_range_coder_t *	c,
		int	bits
	)			[inline, static]

Definition at line 238 of file vp56.h.

Referenced by vp56_decode_4mv(), vp56_parse_mb_type_models(), vp56_rac_gets_nn(), vp5_parse_header(), vp6_parse_coeff_models(), and vp6_parse_header().

static int vp56_rac_gets_nn	(	vp56_range_coder_t *	c,
		int	bits
	)			[inline, static]

Definition at line 249 of file vp56.h.

Referenced by vp5_parse_coeff_models(), vp5_parse_vector_models(), vp6_parse_coeff_models(), and vp6_parse_vector_models().

static int vp56_rac_get_tree	(	vp56_range_coder_t *	c,
		const vp56_tree_t *	tree,
		const uint8_t *	probs
	)			[inline, static]

Definition at line 255 of file vp56.h.

Referenced by vp56_parse_mb_type(), vp56_parse_mb_type_models(), vp5_parse_coeff(), vp5_parse_vector_adjustment(), vp6_parse_coeff(), and vp6_parse_vector_adjustment().