ffv1.h File Reference

FF Video Codec 1 (a lossless codec) More...

#include "libavutil/avassert.h"
#include "libavutil/crc.h"
#include "libavutil/opt.h"
#include "libavutil/imgutils.h"
#include "libavutil/pixdesc.h"
#include "libavutil/timer.h"
#include "avcodec.h"
#include "dsputil.h"
#include "get_bits.h"
#include "internal.h"
#include "mathops.h"
#include "put_bits.h"
#include "rangecoder.h"

Include dependency graph for ffv1.h:

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Go to the source code of this file.

Data Structures
struct	VlcState
struct	PlaneContext
struct	FFV1Context

Macros
#define	MAX_PLANES   4
#define	CONTEXT_SIZE   32
#define	MAX_QUANT_TABLES   8
#define	MAX_CONTEXT_INPUTS   5
#define	MAX_SLICES   256

Typedefs
typedef struct VlcState	VlcState
typedef struct PlaneContext	PlaneContext
typedef struct FFV1Context	FFV1Context

Functions
int	ffv1_common_init (AVCodecContext *avctx)
int	ffv1_init_slice_state (FFV1Context *f, FFV1Context *fs)
int	ffv1_init_slices_state (FFV1Context *f)
int	ffv1_init_slice_contexts (FFV1Context *f)
int	ffv1_allocate_initial_states (FFV1Context *f)
void	ffv1_clear_slice_state (FFV1Context *f, FFV1Context *fs)
int	ffv1_close (AVCodecContext *avctx)
static av_always_inline int	fold (int diff, int bits)
static int	predict (int16_t *src, int16_t *last)
static int	get_context (PlaneContext *p, int16_t *src, int16_t *last, int16_t *last2)
static void	update_vlc_state (VlcState *const state, const int v)

Variables
const uint8_t	ff_log2_run [41]

Detailed Description

FF Video Codec 1 (a lossless codec)

Definition in file ffv1.h.

Macro Definition Documentation

#define CONTEXT_SIZE   32

Definition at line 51 of file ffv1.h.

Referenced by decode_slice_header(), encode_slice_header(), ffv1_clear_slice_state(), ffv1_init_slice_state(), read_extra_header(), read_header(), read_quant_table(), write_extradata(), write_header(), and write_quant_table().

#define MAX_CONTEXT_INPUTS   5

Definition at line 54 of file ffv1.h.

#define MAX_PLANES   4

Definition at line 50 of file ffv1.h.

Referenced by encode_rgb_frame(), ff_draw_init(), and ffv1_init_slice_contexts().

#define MAX_QUANT_TABLES   8

Definition at line 53 of file ffv1.h.

Referenced by read_extra_header().

#define MAX_SLICES   256

Definition at line 74 of file ffv1.h.

Typedef Documentation

typedef struct FFV1Context FFV1Context

typedef struct PlaneContext PlaneContext

typedef struct VlcState VlcState

Function Documentation

int ffv1_allocate_initial_states

(

FFV1Context *

f

)

Definition at line 146 of file ffv1.c.

Referenced by encode_init(), and read_extra_header().

void ffv1_clear_slice_state	(	FFV1Context *	f,
		FFV1Context *	fs
	)

Definition at line 161 of file ffv1.c.

Referenced by decode_slice(), and encode_slice().

int ffv1_close

(

AVCodecContext *

avctx

)

Definition at line 189 of file ffv1.c.

int ffv1_common_init

(

AVCodecContext *

avctx

)

Definition at line 41 of file ffv1.c.

Referenced by decode_init(), and encode_init().

int ffv1_init_slice_contexts

(

FFV1Context *

f

)

Definition at line 110 of file ffv1.c.

Referenced by decode_init(), and encode_init().

int ffv1_init_slice_state	(	FFV1Context *	f,
		FFV1Context *	fs
	)

Definition at line 65 of file ffv1.c.

Referenced by decode_slice(), and ffv1_init_slices_state().

int ffv1_init_slices_state

(

FFV1Context *

f

)

Definition at line 99 of file ffv1.c.

Referenced by encode_init().

static av_always_inline int fold ( int  diff, int  bits  )

static

Definition at line 138 of file ffv1.h.

Referenced by encode_line(), get_vlc_symbol(), and put_vlc_symbol().

static int get_context ( PlaneContext *  p, int16_t *  src, int16_t *  last, int16_t *  last2  )

inlinestatic

Definition at line 160 of file ffv1.h.

Referenced by decode_line(), and encode_line().

static int predict ( int16_t *  src, int16_t *  last  )

inlinestatic

Definition at line 151 of file ffv1.h.

static void update_vlc_state ( VlcState *const  state, const int  v  )

inlinestatic

Definition at line 182 of file ffv1.h.

Referenced by get_vlc_symbol(), and put_vlc_symbol().

Variable Documentation

const uint8_t ff_log2_run[41]

Definition at line 37 of file bitstream.c.