mvcdec.c File Reference

Silicon Graphics Motion Video Compressor 1 & 2 decoder. More...

#include "libavutil/intreadwrite.h"
#include "avcodec.h"
#include "bytestream.h"
#include "internal.h"

Classes
struct	MvcContext

Macros
#define	PIX16(target, true, false)
#define	ROW16(row, a1, a0, b1, b0)
#define	PIX32(target, true, false)
#define	ROW32(row, a1, a0, b1, b0)
#define	MVC2_BLOCK

Typedefs
typedef struct MvcContext	MvcContext

Detailed Description

Silicon Graphics Motion Video Compressor 1 & 2 decoder.

Macro Definition Documentation

MVC2_BLOCK

#define MVC2_BLOCK

Value:

ROW32(0, 1, 0, 3, 2);                                                     \
    ROW32(1, 1, 0, 3, 2);                                                     \
    ROW32(2, 5, 4, 7, 6);                                                     \
    ROW32(3, 5, 4, 7, 6);

PIX16

#define PIX16	(		target,
			true,
			false
	)

Value:

i = (mask & target) ? true : false;                                       \
    AV_WN16A(dst, v[i] & 0x7FFF);                                             \
    dst += 2;

PIX32

#define PIX32	(		target,
			true,
			false
	)

Value:

AV_WN32A(dst, (mask & target) ? v[true] : v[false]);                      \
    dst += 4;

ROW16

#define ROW16	(		row,
			a1,
			a0,
			b1,
			b0
	)

Value:

dst = dst_start + (y + row) * linesize + x * 2;                           \
    PIX16(1 << (row * 4), a1, a0)                                             \
    PIX16(1 << (row * 4 + 1), a1, a0)                                         \
    PIX16(1 << (row * 4 + 2), b1, b0)                                         \
    PIX16(1 << (row * 4 + 3), b1, b0)

ROW32

#define ROW32	(		row,
			a1,
			a0,
			b1,
			b0
	)

Value:

dst = dst_start + (y + row) * linesize + x * 4;                           \
    PIX32(1 << (row * 4), a1, a0)                                             \
    PIX32(1 << (row * 4 + 1), a1, a0)                                         \
    PIX32(1 << (row * 4 + 2), b1, b0)                                         \
    PIX32(1 << (row * 4 + 3), b1, b0)