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 "get_bits.h"
#include "internal.h"
#include "mathops.h"
#include "put_bits.h"
#include "rangecoder.h"
#include "thread.h"

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	AC_GOLOMB_RICE   0
#define	AC_RANGE_DEFAULT_TAB   1
#define	AC_RANGE_CUSTOM_TAB   2
#define	AC_RANGE_DEFAULT_TAB_FORCE   -2
#define	MAX_SLICES   256

Functions
int	ff_ffv1_common_init (AVCodecContext *avctx)
int	ff_ffv1_init_slice_state (FFV1Context *f, FFV1Context *fs)
int	ff_ffv1_init_slices_state (FFV1Context *f)
int	ff_ffv1_init_slice_contexts (FFV1Context *f)
int	ff_ffv1_allocate_initial_states (FFV1Context *f)
void	ff_ffv1_clear_slice_state (FFV1Context *f, FFV1Context *fs)
int	ff_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)

Detailed Description

FF Video Codec 1 (a lossless codec)

Definition in file ffv1.h.

Macro Definition Documentation

#define MAX_PLANES   4

Definition at line 50 of file ffv1.h.

Referenced by encode_rgb_frame(), ff_draw_init(), ff_ffv1_init_slice_contexts(), and ff_snow_common_end().

#define CONTEXT_SIZE   32

Definition at line 51 of file ffv1.h.

Referenced by decode_slice(), decode_slice_header(), encode_slice_header(), ff_ffv1_clear_slice_state(), ff_ffv1_init_slice_state(), read_extra_header(), read_header(), read_quant_table(), write_extradata(), write_header(), and write_quant_table().

#define MAX_QUANT_TABLES   8

Definition at line 53 of file ffv1.h.

Referenced by read_extra_header().

#define MAX_CONTEXT_INPUTS   5

Definition at line 54 of file ffv1.h.

#define AC_GOLOMB_RICE   0

Definition at line 56 of file ffv1.h.

Referenced by decode_line(), decode_slice(), encode_frame(), encode_init(), encode_line(), encode_slice(), ff_ffv1_clear_slice_state(), and ff_ffv1_init_slice_state().

#define AC_RANGE_DEFAULT_TAB   1

Definition at line 57 of file ffv1.h.

Referenced by encode_init().

#define AC_RANGE_CUSTOM_TAB   2

Definition at line 58 of file ffv1.h.

Referenced by encode_frame(), encode_init(), ff_ffv1_init_slice_state(), read_extra_header(), read_header(), write_extradata(), and write_header().

#define AC_RANGE_DEFAULT_TAB_FORCE   -2

Definition at line 59 of file ffv1.h.

Referenced by encode_init().

#define MAX_SLICES   256

Definition at line 77 of file ffv1.h.

Function Documentation

int ff_ffv1_common_init

(

AVCodecContext *

avctx

)

Definition at line 42 of file ffv1.c.

Referenced by decode_init(), and encode_init().

int ff_ffv1_init_slice_state	(	FFV1Context *	f,
		FFV1Context *	fs
	)

Definition at line 67 of file ffv1.c.

Referenced by decode_slice(), and ff_ffv1_init_slices_state().

int ff_ffv1_init_slices_state

(

FFV1Context *

f

)

Definition at line 106 of file ffv1.c.

Referenced by encode_init().

int ff_ffv1_init_slice_contexts

(

FFV1Context *

f

)

Definition at line 117 of file ffv1.c.

Referenced by decode_init(), and encode_init().

int ff_ffv1_allocate_initial_states

(

FFV1Context *

f

)

Definition at line 162 of file ffv1.c.

Referenced by encode_init(), and read_extra_header().

void ff_ffv1_clear_slice_state	(	FFV1Context *	f,
		FFV1Context *	fs
	)

Definition at line 177 of file ffv1.c.

Referenced by decode_slice(), encode_slice(), and encode_slice_header().

int ff_ffv1_close

(

AVCodecContext *

avctx

)

Definition at line 205 of file ffv1.c.

Referenced by encode_close().

static av_always_inline int fold ( int  diff, int  bits  )

static

Definition at line 148 of file ffv1.h.

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

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

inlinestatic

Definition at line 161 of file ffv1.h.

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

inlinestatic

Definition at line 170 of file ffv1.h.

Referenced by decode_line(), and encode_line().

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

inlinestatic

Definition at line 192 of file ffv1.h.

Referenced by get_vlc_symbol(), and put_vlc_symbol().