VC-1 Bitplane decoding

Functions
static void	decode_rowskip (uint8_t *plane, int width, int height, int stride, GetBitContext *gb)
	Decode rows by checking if they are skipped.
static void	decode_colskip (uint8_t *plane, int width, int height, int stride, GetBitContext *gb)
	Decode columns by checking if they are skipped.
static int	bitplane_decoding (uint8_t *data, int *raw_flag, VC1Context *v)
	Decode a bitplane's bits.
enum	Imode {   IMODE_RAW, IMODE_NORM2, IMODE_DIFF2, IMODE_NORM6,   IMODE_DIFF6, IMODE_ROWSKIP, IMODE_COLSKIP }
	Imode types. More...

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Detailed Description

See also:

8.7, p56

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Enumeration Type Documentation

enum Imode

Imode types.

Enumerator:

IMODE_RAW
IMODE_NORM2
IMODE_DIFF2
IMODE_NORM6
IMODE_DIFF6
IMODE_ROWSKIP
IMODE_COLSKIP

Definition at line 129 of file vc1.c.

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Function Documentation

static int bitplane_decoding	(	uint8_t *	data,
		int *	raw_flag,
		VC1Context *	v
	)			[static]

Decode a bitplane's bits.

Parameters:

	data	bitplane where to store the decode bits
[out]	raw_flag	pointer to the flag indicating that this bitplane is not coded explicitly
	v	VC-1 context for bit reading and logging

Returns:

Status

Todo:

FIXME: Optimize

Definition at line 187 of file vc1.c.

Referenced by vc1_parse_frame_header(), and vc1_parse_frame_header_adv().

static void decode_colskip	(	uint8_t *	plane,
		int	width,
		int	height,
		int	stride,
		GetBitContext *	gb
	)			[static]

Decode columns by checking if they are skipped.

Parameters:

	plane	Buffer to store decoded bits
[in]	width	Width of this buffer
[in]	height	Height of this buffer
[in]	stride	of this buffer

Todo:

FIXME: Optimize

Definition at line 166 of file vc1.c.

Referenced by bitplane_decoding().

static void decode_rowskip	(	uint8_t *	plane,
		int	width,
		int	height,
		int	stride,
		GetBitContext *	gb
	)			[static]

Decode rows by checking if they are skipped.

Parameters:

	plane	Buffer to store decoded bits
[in]	width	Width of this buffer
[in]	height	Height of this buffer
[in]	stride	of this buffer

Definition at line 146 of file vc1.c.

Referenced by bitplane_decoding().