xref: /aosp_15_r20/external/libyuv/util/i444tonv12_eg.cc (revision 4e366538070a3a6c5c163c31b791eab742e1657a)
1*4e366538SXin Li 
2*4e366538SXin Li #include "libyuv/convert.h"
3*4e366538SXin Li 
4*4e366538SXin Li #include <stdio.h>   // for printf
5*4e366538SXin Li #include <string.h>  // for memset
6*4e366538SXin Li 
main(int,char **)7*4e366538SXin Li int main(int, char**) {
8*4e366538SXin Li   unsigned char src_i444[640 * 400 * 3];
9*4e366538SXin Li   unsigned char dst_nv12[640 * 400 * 3 / 2];
10*4e366538SXin Li 
11*4e366538SXin Li   for (size_t i = 0; i < sizeof(src_i444); ++i) {
12*4e366538SXin Li     src_i444[i] = i & 255;
13*4e366538SXin Li   }
14*4e366538SXin Li   memset(dst_nv12, 0, sizeof(dst_nv12));
15*4e366538SXin Li   libyuv::I444ToNV12(&src_i444[0], 640,              // source Y
16*4e366538SXin Li                      &src_i444[640 * 400], 640,      // source U
17*4e366538SXin Li                      &src_i444[640 * 400 * 2], 640,  // source V
18*4e366538SXin Li                      &dst_nv12[0], 640,              // dest Y
19*4e366538SXin Li                      &dst_nv12[640 * 400], 640,      // dest UV
20*4e366538SXin Li                      640, 400);                      // width and height
21*4e366538SXin Li 
22*4e366538SXin Li   int checksum = 0;
23*4e366538SXin Li   for (size_t i = 0; i < sizeof(dst_nv12); ++i) {
24*4e366538SXin Li     checksum += dst_nv12[i];
25*4e366538SXin Li   }
26*4e366538SXin Li   printf("checksum %x %s\n", checksum, checksum == 0x2ec0c00 ? "PASS" : "FAIL");
27*4e366538SXin Li   return 0;
28*4e366538SXin Li }