Camera.Parameters.setRecordingHint and aspect ratio

Question

I\'ve found some odd behavior around Camera.Parameters.setRecordingHint that I\'d like to understand better.

If I set it to true, the size of the previe

Answer 1

You need to set video-size parameter to the correct value. I had the same problem - preview size was 640x480 and the preview appeared stretched while using setRecordingHint(true). I then used getParameters().flatten() to print out all parameters set for my Camera device. My video-size parameter was actually set to 1920x1080 causing the incorrect aspect ratio. You can change this parameter using params.set("video-size", "WxH"). Only then is the aspect ratio correct.

Answer 2

i've seen a lot of random behavior around this and it unfortunately depends on the oem as well. i see a difference in framerate as well on some phones, like nexus 4 preview framerate drops in half. we depend on the preview frame callback to come at our desired framerate so we have to switch it on phone model unfortunately.