crc.c File Reference

#include "config.h"
#include "thread.h"
#include "avassert.h"
#include "bswap.h"
#include "common.h"
#include "crc.h"

Go to the source code of this file.

Macros
#define	CRC_TABLE_SIZE   1024
#define	DECLARE_CRC_INIT_TABLE_ONCE(id, le, bits, poly)
#define	CRC_INIT_TABLE_ONCE(id)   ff_thread_once(&id ## _once_control, id ## _init_table_once)

Functions
int	av_crc_init (AVCRC *ctx, int le, int bits, uint32_t poly, int ctx_size)
	Initialize a CRC table. More...
const AVCRC *	av_crc_get_table (AVCRCId crc_id)
	Get an initialized standard CRC table. More...
uint32_t	av_crc (const AVCRC *ctx, uint32_t crc, const uint8_t *buffer, size_t length)
	Calculate the CRC of a block. More...

Variables
static AVCRC	av_crc_table [AV_CRC_MAX][CRC_TABLE_SIZE]

Macro Definition Documentation

#define CRC_TABLE_SIZE   1024

Definition at line 318 of file crc.c.

#define DECLARE_CRC_INIT_TABLE_ONCE	(		id,
			le,
			bits,
			poly
	)

Value:

static AVOnce id ## _once_control = AV_ONCE_INIT;                                             \
static void id ## _init_table_once(void)                                                      \
{                                                                                             \
    av_assert0(av_crc_init(av_crc_table[id], le, bits, poly, sizeof(av_crc_table[id])) >= 0); \
}

Definition at line 322 of file crc.c.

#define CRC_INIT_TABLE_ONCE

(

id

)

ff_thread_once(&id ## _once_control, id ## _init_table_once)

Definition at line 329 of file crc.c.

Referenced by av_crc_get_table().

Variable Documentation

AVCRC av_crc_table[AV_CRC_MAX][CRC_TABLE_SIZE]

static

Definition at line 320 of file crc.c.

Referenced by av_crc_get_table().