#include "libavutil/crc.h"
#include "libavutil/intreadwrite.h"
+#include "libavutil/thread.h"
#include "mlp.h"
const uint8_t ff_mlp_huffman_tables[3][18][2] = {
AV_CH_LAYOUT_4POINT1, AV_CH_LAYOUT_5POINT1_BACK, 0,
};
-static int crc_init = 0;
#if CONFIG_SMALL
#define CRC_TABLE_SIZE 257
#else
static AVCRC crc_1D[CRC_TABLE_SIZE];
static AVCRC crc_2D[CRC_TABLE_SIZE];
+static av_cold void mlp_init_crc(void)
+{
+ av_crc_init(crc_63, 0, 8, 0x63, sizeof(crc_63));
+ av_crc_init(crc_1D, 0, 8, 0x1D, sizeof(crc_1D));
+ av_crc_init(crc_2D, 0, 16, 0x002D, sizeof(crc_2D));
+}
+
av_cold void ff_mlp_init_crc(void)
{
- if (!crc_init) {
- av_crc_init(crc_63, 0, 8, 0x63, sizeof(crc_63));
- av_crc_init(crc_1D, 0, 8, 0x1D, sizeof(crc_1D));
- av_crc_init(crc_2D, 0, 16, 0x002D, sizeof(crc_2D));
- crc_init = 1;
- }
+ static AVOnce init_static_once = AV_ONCE_INIT;
+ ff_thread_once(&init_static_once, mlp_init_crc);
}
uint16_t ff_mlp_checksum16(const uint8_t *buf, unsigned int buf_size)