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RSS订阅原创 计算非0的64位数据中第一个为1的位的位置
int first_bit64(uint64_t x) { x = (x ^ (x - 1)) >> 1; x = x - ((x >> 1) & 0x5555555555555555); x = (x & 0x3333333333333333) + ((x >> 2) & 0x3333333333333333); x =
2012-04-22 17:52:16
900
原创 yuyv420转yuyv422
void cvt_420_422(int width, int height, char *src, char *dst) { unsigned char *py = (unsigned char *)src; unsigned char *pu = (unsigned char *)src + width * height; unsigned char *pv = (un
2012-01-11 10:21:47
863
原创 将YUV或RGB的格式的数据保存为bmp文件
#pragma pack (push ,1) typedef struct { /* bmfh */ uint16_t bfType; uint32_t bfSize; uint16_t bfReserved1; uint16_t bfReserved2; uint32_t bfOffBits; } BMP_FILE_HDR; typedef stru
2012-01-11 10:10:46
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