4s front-facing camera call

Recently made a snapshot of the function needs to call the front-facing camera, on the 5s,6s,6plus can be called normally, but the call on the 4s camera will appear white. Began to think is the cause of the phone, then Baidu 4s before and after the camera pixel, found the front camera pixel is very low, so guess will be related to pixels. Find the code to adjust the pixel and modify it, the code is as follows:

_capturesession.sessionpreset=avcapturesessionpreset1280x720;

if (is_iphone_4s)

{

/*4s the resolution of the front camera is too low, the corresponding setting is also lower to output the screen */

_capturesession.sessionpreset = avcapturesessionpreset640x480;

}

Then you can shoot it normally. (Welcome to the vomit Groove)

4s front-facing camera call