WebRTC with Usb Camera

[Peter Stoiber]

Hello,

the old version of webrtc supported a method in the VideoCapturer.CapturerObserver Interface to add custom frames over the method - onByteBufferFrameCaptured - directly over java.

In the newer Versions, I think I'll have to use this method:

void onFrameCaptured(VideoFrame frame);

from the CapturerObserver Interface.

But the new Class VideoFrame mostly contains @CalledByNative code.

Is it still possible to add a custom frame in a byte array from java to webrtc?

[김주봉]

long timestampNS = TimeUnit.MILLISECONDS.toNanos(SystemClock.elapsedRealtime());

android.util.Size size = camera.getCurrentVideoResolution();

NV21Buffer buffer = new NV21Buffer(bytes, size.getWidth(), size.getHeight(), null);

VideoFrame videoFrame = new VideoFrame(buffer, 0, timestampNS);

capturerObserver.onFrameCaptured(videoFrame);

2020년 4월 14일 화요일 오후 5시 37분 12초 UTC+9, Peter Stoiber 님의 말:

[Peter Stoiber]

Hello 김주봉 and thx for the answer,

I haven't looked for the NV21Class up to now, but this class looks sane for an implementation of an external frame byte-array.

One more thing,
are there other formats than NV21 for WebRTC too, because for an example the croma convertation from Mjpeg to NV21 takes a lot of system resources and highly increases the app size.

Thx,

Peter