Capturing a single image

[alexandrefresnais]

Hi!

I was wondering if there was an easy way to capture a single image with VideoKit. I would like my recorder to support both video recording and image recording.
I have seen the JPEG recorder but it feels a bit hacky to force it to take a single frame.

Is there any way to achieve this ?

Thank you very much.

Regards,

[olokobayusuf]

Hey @alexandrefresnais, for capturing screenshots I'd recommend using Unity's ScreenCapture API. You can use a JPEG MediaRecorder from VideoKit, but it's intended for image sequences, not single images.

[alexandrefresnais]

Hey, thank you very much for your answer. The thing is that ScreenCapture does not allow me to capture a single camera, thus captures UI. For sure this can be achieved with other ways, like I do now with RenderTextures.
I wanted to make sure I did not miss a way to merge my camera capture system with the VideoRecorder, as I saw the ImageAssetcomponent.

Thanks again for answering me!

[olokobayusuf]

Yup I think the best way would be to use a JPEG MediaRecorder from code. You might be able to hack the VideoKitRecorder to take a screenshot for you, but I have no clue whether it will actually work:

VideoKitRecorder recorder = ...;
// Start recording to a JPEG sequence
recorder.format = MediaFormat.JPEG;
recorder.OnRecordingCompleted.AddListener(OnRecord);
await recorder.StartRecording();
// Wait for a frame // Might need to wait for two frames instead, test this
await Task.Yield();
// Stop recording
await recorder.StopRecording();

void OnRecord (MediaAsset asset) {
    var imageSequence = asset as MediaSequenceAsset;
    var image = imageSequence.assets[0] as ImageAsset;
    // Do stuff with image...
}

[alexandrefresnais]

Thank you very much, will surely give it a try !