#include "common.h"
#include <string.h>
#include "lzo.h"
Go to the source code of this file.
Data Structures | |
struct | LZOContext |
Defines | |
#define | OUTBUF_PADDED 1 |
avoid e.g. MPlayers fast_memcpy, it slows things down here | |
#define | INBUF_PADDED 1 |
define if we may read up to 8 bytes beyond the input buffer | |
#define | GETB(c) (*(c).in++) |
#define | BUILTIN_MEMCPY |
#define | COPY2(d, s) memcpy(d, s, 2); |
#define | COPY4(d, s) memcpy(d, s, 4); |
Functions | |
static int | get_byte (LZOContext *c) |
read one byte from input buffer, avoiding overrun | |
static int | get_len (LZOContext *c, int x, int mask) |
decode a length value in the coding used by lzo | |
static void | copy (LZOContext *c, int cnt) |
copy bytes from input to output buffer with checking | |
static void | copy_backptr (LZOContext *c, int back, int cnt) |
copy previously decoded bytes to current position | |
int | lzo1x_decode (void *out, int *outlen, const void *in, int *inlen) |
decode LZO 1x compressed data |
#define COPY2 | ( | d, | |||
s | ) | memcpy(d, s, 2); |
#define INBUF_PADDED 1 |
#define OUTBUF_PADDED 1 |
static void copy | ( | LZOContext * | c, | |
int | cnt | |||
) | [inline, static] |
copy bytes from input to output buffer with checking
cnt | number of bytes to copy, must be >= 0 |
Definition at line 86 of file lzo.c.
Referenced by lzo1x_decode(), qpeg_decode_intra(), and roq_decode_frame().
static void copy_backptr | ( | LZOContext * | c, | |
int | back, | |||
int | cnt | |||
) | [inline, static] |
copy previously decoded bytes to current position
back | how many bytes back we start | |
cnt | number of bytes to copy, must be >= 0 |
Definition at line 117 of file lzo.c.
Referenced by lzo1x_decode().
static int get_byte | ( | LZOContext * | c | ) | [inline, static] |
static int get_len | ( | LZOContext * | c, | |
int | x, | |||
int | mask | |||
) | [inline, static] |
decode a length value in the coding used by lzo
x | previous byte value | |
mask | bits used from x |
Definition at line 60 of file lzo.c.
Referenced by lzo1x_decode().
int lzo1x_decode | ( | void * | out, | |
int * | outlen, | |||
const void * | in, | |||
int * | inlen | |||
) |
decode LZO 1x compressed data
out | output buffer | |
outlen | size of output buffer, number of bytes left are returned here | |
in | input buffer | |
inlen | size of input buffer, number of bytes left are returned here |
Definition at line 174 of file lzo.c.
Referenced by decode_frame().