public static MediaStream CaptureStream(this Camera cam, int width, int height, RenderTextureDepth depth = RenderTextureDepth.DEPTH_24)
{
if (camCopyRts.Count > 0)
{
throw new NotImplementedException("Currently not allowed multiple MediaStream");
}
switch (depth)
{
case RenderTextureDepth.DEPTH_16:
case RenderTextureDepth.DEPTH_24:
case RenderTextureDepth.DEPTH_32:
break;
default:
throw new InvalidEnumArgumentException(nameof(depth), (int)depth, typeof(RenderTextureDepth));
}
int depthValue = (int)depth;
RenderTexture[] rts = new RenderTexture[2];
var format = WebRTC.GetSupportedRenderTextureFormat(SystemInfo.graphicsDeviceType);
//rts[0] for render target, rts[1] for flip and WebRTC source
rts[0] = new RenderTexture(width, height, depthValue, format);
rts[1] = new RenderTexture(width, height, 0, format);
rts[0].Create();
rts[1].Create();
camCopyRts.Add(rts);
cam.targetTexture = rts[0];
cam.gameObject.AddCleanerCallback(() =>
{
CameraExtension.RemoveRt(rts);
rts[0].Release();
rts[1].Release();
UnityEngine.Object.Destroy(rts[0]);
UnityEngine.Object.Destroy(rts[1]);
});
started = true;
var stream = WebRTC.Context.CaptureVideoStream(rts[1].GetNativeTexturePtr(), width, height);
// TODO::
// You should initialize encoder after create stream instance.
// This specification will change in the future.
WebRTC.Context.InitializeEncoder();
return(new MediaStream(rts, stream));
}
private void StopTrack(MediaStreamTrack track)
{
if (track.Kind == TrackKind.Video)
{
WebRTC.Context.StopMediaStreamTrack(track.self);
RenderTexture[] rts = VideoTrackToRts[track];
if (rts != null)
{
CameraExtension.RemoveRt(rts);
rts[0].Release();
rts[1].Release();
UnityEngine.Object.Destroy(rts[0]);
UnityEngine.Object.Destroy(rts[1]);
}
}
else
{
Audio.Stop();
}
}