RenderTexture TryReceiveFrame()
{
PrepareInternalObjects();
// Do nothing if the recv object is not ready.
if (_recv == null)
{
return(null);
}
// Try getting a video frame.
var frameOrNull = RecvHelper.TryCaptureVideoFrame(_recv);
if (frameOrNull == null)
{
return(null);
}
var frame = (Interop.VideoFrame)frameOrNull;
// Pixel format conversion
var rt = _converter.Decode
(frame.Width, frame.Height,
Util.CheckAlpha(frame.FourCC), frame.Data);
// Free the frame up.
_recv.FreeVideoFrame(frame);
return(rt);
}
RenderTexture TryReceiveFrame()
{
PrepareInternalObjects();
// Do nothing if the recv object is not ready.
if (_recv == null)
{
return(null);
}
// Try getting a video frame.
var frameOrNull = RecvHelper.TryCaptureVideoFrame(_recv);
if (frameOrNull == null)
{
return(null);
}
var frame = (Interop.VideoFrame)frameOrNull;
// Pixel format conversion
var rt = _converter.Decode
(frame.Width, frame.Height,
Util.CheckAlpha(frame.FourCC), frame.Data);
// Copy the metadata if any.
if (frame.Metadata != System.IntPtr.Zero)
{
metadata = Marshal.PtrToStringAnsi(frame.Metadata);
}
else
{
metadata = null;
}
// Free the frame up.
_recv.FreeVideoFrame(frame);
return(rt);
}
RenderTexture TryReceiveFrame()
{
PrepareReceiverObjects();
if (_recv == null)
{
return(null);
}
// Video frame capturing
var frameOrNull = RecvHelper.TryCaptureVideoFrame(_recv);
if (frameOrNull == null)
{
return(null);
}
var frame = (Interop.VideoFrame)frameOrNull;
// Pixel format conversion
var rt = _converter.Decode
(frame.Width, frame.Height, Util.HasAlpha(frame.FourCC), frame.Data);
// Metadata retrieval
if (frame.Metadata != IntPtr.Zero)
{
metadata = Marshal.PtrToStringAnsi(frame.Metadata);
}
else
{
metadata = null;
}
// Video frame release
_recv.FreeVideoFrame(frame);
return(rt);
}
void Update()
{
PrepareInternalObjects();
// Do nothing if the recv object is not ready.
if (_recv == null)
{
return;
}
// Handle metadata frames
lock (metadataFrameQueue)
{
if (metadataFrameQueue.Count > 0)
{
onMetaDataReceived?.Invoke(metadataFrameQueue[0]);
metadataFrameQueue.RemoveAt(0);
}
}
// Handle audio metadata
lock (audioMetadataQueue)
{
if (audioMetadataQueue.Count > 0)
{
onAudioMetaDataReceived?.Invoke(audioMetadataQueue[0]);
audioMetadataQueue.RemoveAt(0);
}
}
// Handle VideoFrames
RenderTexture rt = null;
lock (videoFrameQueue)
{
if (videoFrameQueue.Count > 0)
{
// Unlike audio, we don't need to worry about processing every frame
// There should only be a single frame in the queue anyway,
// But still, we grab the latest from the queue and discard the rest
var vf = videoFrameQueue[videoFrameQueue.Count - 1];
// Pixel format conversion
rt = _converter.Decode
(vf.Width, vf.Height,
Util.CheckAlpha(vf.FourCC), vf.Data);
// Handle Videoframe metadata
if (vf.Metadata != IntPtr.Zero)
{
onVideoMetaDataReceived?.Invoke(Marshal.PtrToStringAnsi(vf.Metadata));
}
// Store the videoframe resolution
if (resolution == null || resolution.x != vf.Width || resolution.y != vf.Height)
{
resolution = new Vector2(vf.Width, vf.Height);
}
// Free the videoframe
videoFrameQueue.ForEach(v => _recv.FreeVideoFrame(v));
videoFrameQueue.Clear();
}
}
if (rt == null)
{
return;
}
// Material property override
if (_targetRenderer != null)
{
_targetRenderer.GetPropertyBlock(_override);
_override.SetTexture(_targetMaterialProperty, rt);
_targetRenderer.SetPropertyBlock(_override);
}
// External texture update
if (_targetTexture != null)
{
Graphics.Blit(rt, _targetTexture);
}
}
