ffv1.h File Reference

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

#include "libavutil/attributes.h"
#include "avcodec.h"
#include "get_bits.h"
#include "mathops.h"
#include "progressframe.h"
#include "put_bits.h"
#include "rangecoder.h"

Go to the source code of this file.

Data Structures
struct	VlcState
struct	PlaneContext
struct	FFV1SliceContext
struct	FFV1SliceContext::Unit
struct	FFV1Context

Macros
#define	MAX_PLANES   4
#define	CONTEXT_SIZE   32
#define	MAX_QUANT_TABLES   8
#define	MAX_QUANT_TABLE_SIZE   256
#define	MAX_QUANT_TABLE_MASK   (MAX_QUANT_TABLE_SIZE - 1)
#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   1024

Functions
int	ff_ffv1_common_init (AVCodecContext *avctx, FFV1Context *s)
int	ff_ffv1_init_slice_state (const FFV1Context *f, FFV1SliceContext *sc)
int	ff_ffv1_init_slices_state (FFV1Context *f)
int	ff_ffv1_init_slice_contexts (FFV1Context *f)
PlaneContext *	ff_ffv1_planes_alloc (void)
int	ff_ffv1_allocate_initial_states (FFV1Context *f)
void	ff_ffv1_clear_slice_state (const FFV1Context *f, FFV1SliceContext *sc)
void	ff_ffv1_close (FFV1Context *s)
int	ff_need_new_slices (int width, int num_h_slices, int chroma_shift)
int	ff_ffv1_parse_header (FFV1Context *f, RangeCoder *c, uint8_t *state)
int	ff_ffv1_read_extra_header (FFV1Context *f)
int	ff_ffv1_read_quant_tables (RangeCoder *c, int16_t quant_table[MAX_CONTEXT_INPUTS][256])
void	ff_ffv1_compute_bits_per_plane (const FFV1Context *f, FFV1SliceContext *sc, int bits[4], int *offset, int mask[4], int bits_per_raw_sample)
int	ff_ffv1_get_symbol (RangeCoder *c, uint8_t *state, int is_signed)
int	ff_slice_coord (const FFV1Context *f, int width, int sx, int num_h_slices, int chroma_shift)
	This is intended for both width and height.
static av_always_inline int	fold (int diff, int bits)
static void	update_vlc_state (VlcState *const state, const int v)
static av_flatten int	get_symbol_inline (RangeCoder *c, uint8_t *state, int is_signed)

Detailed Description

FF Video Codec 1 (a lossless codec)

Definition in file ffv1.h.

Macro Definition Documentation

MAX_PLANES

#define MAX_PLANES   4

Definition at line 44 of file ffv1.h.

Referenced by encode_bayer_frame(), encode_float32_rgb_frame(), encode_rgb_frame_TMPL(), ff_draw_init2(), ff_ffv1_init_slice_contexts(), ff_ffv1_planes_alloc(), ff_snow_common_end(), find_slice_quant(), planes_free(), and uninit().

CONTEXT_SIZE

#define CONTEXT_SIZE   32

Definition at line 45 of file ffv1.h.

Referenced by contains_non_128(), decode_slice_header(), encode_slice_header(), ff_ffv1_clear_slice_state(), ff_ffv1_init_slice_state(), ff_ffv1_read_extra_header(), ff_ffv1_write_extradata(), init_decode_shader(), init_encode_shader(), parse(), read_header(), read_quant_table(), vk_ffv1_start_frame(), vulkan_encode_ffv1_submit_frame(), write_header(), and write_quant_table().

MAX_QUANT_TABLES

#define MAX_QUANT_TABLES   8

Definition at line 47 of file ffv1.h.

Referenced by ff_ffv1_read_extra_header(), and ff_ffv1_vk_init_consts().

MAX_QUANT_TABLE_SIZE

#define MAX_QUANT_TABLE_SIZE   256

Definition at line 48 of file ffv1.h.

Referenced by ff_ffv1_vk_init_consts(), get_context_TMPL(), write_quant_table(), and write_quant_tables().

MAX_QUANT_TABLE_MASK

#define MAX_QUANT_TABLE_MASK   (MAX_QUANT_TABLE_SIZE - 1)

Definition at line 49 of file ffv1.h.

Referenced by get_context_TMPL().

MAX_CONTEXT_INPUTS

#define MAX_CONTEXT_INPUTS   5

Definition at line 50 of file ffv1.h.

Referenced by ff_ffv1_read_quant_tables(), ff_ffv1_vk_init_consts(), get_context_TMPL(), and write_quant_tables().

AC_GOLOMB_RICE

#define AC_GOLOMB_RICE   0

Definition at line 52 of file ffv1.h.

Referenced by decode_header(), decode_line_TMPL(), decode_slice(), decode_slice_header(), encode_init_internal(), encode_line_TMPL(), encode_slice(), ff_ffv1_clear_slice_state(), ff_ffv1_encode_init(), ff_ffv1_init_slice_state(), init_decode_shader(), init_encode_shader(), init_reset_shader(), init_reset_shader(), is_input_end(), vk_ffv1_start_frame(), vulkan_encode_ffv1_init(), and vulkan_encode_ffv1_submit_frame().

AC_RANGE_DEFAULT_TAB

#define AC_RANGE_DEFAULT_TAB   1

Definition at line 53 of file ffv1.h.

Referenced by encode_init_internal().

AC_RANGE_CUSTOM_TAB

#define AC_RANGE_CUSTOM_TAB   2

Definition at line 54 of file ffv1.h.

Referenced by encode_frame(), encode_init_internal(), ff_ffv1_encode_init(), ff_ffv1_init_slice_state(), ff_ffv1_parse_header(), ff_ffv1_read_extra_header(), ff_ffv1_write_extradata(), vulkan_encode_ffv1_init(), and write_header().

AC_RANGE_DEFAULT_TAB_FORCE

#define AC_RANGE_DEFAULT_TAB_FORCE   -2

Definition at line 55 of file ffv1.h.

Referenced by encode_init_internal().

MAX_SLICES

#define MAX_SLICES   1024

Definition at line 71 of file ffv1.h.

Function Documentation

ff_ffv1_common_init()

int ff_ffv1_common_init	(	AVCodecContext *	avctx,
		FFV1Context *	s )

Definition at line 36 of file ffv1.c.

Referenced by decode_init(), encode_init_internal(), parse(), and vulkan_encode_ffv1_init().

ff_ffv1_init_slice_state()

int ff_ffv1_init_slice_state	(	const FFV1Context *	f,
		FFV1SliceContext *	sc )

Definition at line 72 of file ffv1.c.

Referenced by decode_slice(), and ff_ffv1_init_slices_state().

ff_ffv1_init_slices_state()

int ff_ffv1_init_slices_state

(

FFV1Context *

f

)

Definition at line 110 of file ffv1.c.

Referenced by encode_init_internal().

ff_ffv1_init_slice_contexts()

int ff_ffv1_init_slice_contexts

(

FFV1Context *

f

)

Definition at line 142 of file ffv1.c.

Referenced by decode_init(), and encode_init_internal().

ff_ffv1_planes_alloc()

PlaneContext * ff_ffv1_planes_alloc

(

void

)

Definition at line 66 of file ffv1.c.

Referenced by ff_ffv1_init_slice_contexts(), and read_header().

ff_ffv1_allocate_initial_states()

int ff_ffv1_allocate_initial_states

(

FFV1Context *

f

)

Definition at line 185 of file ffv1.c.

Referenced by ff_ffv1_encode_init(), and ff_ffv1_read_extra_header().

ff_ffv1_clear_slice_state()

void ff_ffv1_clear_slice_state	(	const FFV1Context *	f,
		FFV1SliceContext *	sc )

Definition at line 200 of file ffv1.c.

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

ff_ffv1_close()

void ff_ffv1_close

(

FFV1Context *

s

)

Definition at line 268 of file ffv1.c.

Referenced by encode_close(), ffv1_close(), and ffv1_decode_close().

ff_need_new_slices()

int ff_need_new_slices	(	int	width,
		int	num_h_slices,
		int	chroma_shift )

Definition at line 120 of file ffv1.c.

Referenced by ff_ffv1_encode_determine_slices().

ff_ffv1_parse_header()

int ff_ffv1_parse_header	(	FFV1Context *	f,
		RangeCoder *	c,
		uint8_t *	state )

Definition at line 216 of file ffv1_parse.c.

Referenced by parse(), and read_header().

ff_ffv1_read_extra_header()

int ff_ffv1_read_extra_header

(

FFV1Context *

f

)

Definition at line 70 of file ffv1_parse.c.

Referenced by decode_init(), and parse().

ff_ffv1_read_quant_tables()

int ff_ffv1_read_quant_tables	(	RangeCoder *	c,
		int16_t	quant_table[MAX_CONTEXT_INPUTS][256] )

Definition at line 52 of file ffv1_parse.c.

Referenced by ff_ffv1_read_extra_header(), and read_header().

ff_ffv1_compute_bits_per_plane()

void ff_ffv1_compute_bits_per_plane	(	const FFV1Context *	f,
		FFV1SliceContext *	sc,
		int	bits[4],
		int *	offset,
		int	mask[4],
		int	bits_per_raw_sample )

Definition at line 224 of file ffv1.c.

Referenced by decode_bayer_frame(), decode_rgb_frame_TMPL(), encode_bayer_frame(), encode_float32_rgb_frame(), and encode_rgb_frame_TMPL().

ff_ffv1_get_symbol()

int ff_ffv1_get_symbol	(	RangeCoder *	c,
		uint8_t *	state,
		int	is_signed )

Definition at line 263 of file ffv1.c.

Referenced by decode_current_mul(), decode_remap(), decode_slice_header(), ff_ffv1_parse_header(), ff_ffv1_read_extra_header(), read_header(), and read_quant_table().

ff_slice_coord()

int ff_slice_coord	(	const FFV1Context *	f,
		int	width,
		int	sx,
		int	num_h_slices,
		int	chroma_shift )

This is intended for both width and height.

Definition at line 127 of file ffv1.c.

Referenced by decode_slice_header(), and ff_ffv1_init_slice_contexts().

fold()

static av_always_inline int fold ( int diff, int bits )

static

Definition at line 216 of file ffv1.h.

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

update_vlc_state()

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

inlinestatic

Definition at line 227 of file ffv1.h.

Referenced by get_vlc_symbol(), and put_vlc_symbol().

get_symbol_inline()

static av_flatten int get_symbol_inline ( RangeCoder * c, uint8_t * state, int is_signed )

inlinestatic

Definition at line 256 of file ffv1.h.

Referenced by decode_line_TMPL(), decode_remap(), and ff_ffv1_get_symbol().