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...

Detailed Description

See also:
8.7, p56

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.


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().


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