jpegls.h File Reference

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Detailed Description

JPEG-LS common code.

Definition in file jpegls.h.

Go to the source code of this file.

Classes
struct	JpeglsContext
struct	JLSState
Functions
void	ff_jpegls_init_state (JLSState *state)
	Calculate initial JPEG-LS parameters.
static int	ff_jpegls_quantize (JLSState *s, int v)
	Calculate quantized gradient value, used for context determination.
void	ff_jpegls_reset_coding_parameters (JLSState *s, int reset_all)
	Calculate JPEG-LS codec values.
static void	ff_jpegls_downscale_state (JLSState *state, int Q)
static int	ff_jpegls_update_state_regular (JLSState *state, int Q, int err)
Variables
const uint8_t	ff_log2_run [32]

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Function Documentation

void ff_jpegls_init_state

(

JLSState *

state

)

Calculate initial JPEG-LS parameters.

Definition at line 37 of file jpegls.c.

Referenced by encode_picture_ls(), and ff_jpegls_decode_picture().

static int ff_jpegls_quantize	(	JLSState *	s,
		int	v
	)			[inline, static]

Calculate quantized gradient value, used for context determination.

Definition at line 56 of file jpegls.h.

Referenced by ls_decode_line(), and ls_encode_line().

void ff_jpegls_reset_coding_parameters	(	JLSState *	s,
		int	reset_all
	)

Calculate JPEG-LS codec values.

Definition at line 66 of file jpegls.c.

Referenced by encode_picture_ls(), ff_jpegls_decode_picture(), and ls_store_lse().

static void ff_jpegls_downscale_state	(	JLSState *	state,
		int	Q
	)			[inline, static]

Definition at line 79 of file jpegls.h.

Referenced by ff_jpegls_update_state_regular(), ls_encode_runterm(), and ls_get_code_runterm().

static int ff_jpegls_update_state_regular	(	JLSState *	state,
		int	Q,
		int	err
	)			[inline, static]

Definition at line 88 of file jpegls.h.

Referenced by ls_encode_regular(), and ls_get_code_regular().

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Variable Documentation

const uint8_t ff_log2_run[32]

Definition at line 30 of file jpegls.c.

Referenced by ls_decode_line(), ls_encode_line(), and ls_encode_run().