private static void SendTestPattern(object state)
{
lock (_sendTestPatternTimer)
{
unsafe
{
if (OnTestPatternSampleReady != null)
{
var stampedTestPattern = _testPattern.Clone() as System.Drawing.Image;
AddTimeStampAndLocation(stampedTestPattern, DateTime.UtcNow.ToString("dd MMM yyyy HH:mm:ss:fff"), "Test Pattern");
var sampleBuffer = BitmapToRGBA(stampedTestPattern as System.Drawing.Bitmap, _testPattern.Width, _testPattern.Height);
var i420Frame = _videoFrameConverter.Convert(sampleBuffer);
_presentationTimestamp += VIDEO_TIMESTAMP_SPACING;
//i420Frame.key_frame = _forceKeyFrame ? 1 : 0;
i420Frame.pts = _presentationTimestamp;
byte[] encodedBuffer = _ffmpegEncoder.Encode(AVCodecID.AV_CODEC_ID_VP8, i420Frame, FRAMES_PER_SECOND);
if (encodedBuffer != null)
{
OnTestPatternSampleReady?.Invoke(SDPMediaTypesEnum.video, VIDEO_TIMESTAMP_SPACING, encodedBuffer);
}
stampedTestPattern.Dispose();
}
}
}
}
private static void SendTestPattern(object state)
{
lock (_sendTestPatternTimer)
{
unsafe
{
if (OnTestPatternSampleReady != null)
{
var stampedTestPattern = _testPattern.Clone() as System.Drawing.Image;
AddTimeStampAndLocation(stampedTestPattern, DateTime.UtcNow.ToString("dd MMM yyyy HH:mm:ss:fff"), "Test Pattern");
var sampleBuffer = PixelConverter.BitmapToRGBA(stampedTestPattern as System.Drawing.Bitmap, _testPattern.Width, _testPattern.Height);
byte[] i420Buffer = PixelConverter.RGBAtoYUV420Planar(sampleBuffer, _testPattern.Width, _testPattern.Height);
var encodedBuffer = _vp8Encoder.Encode(i420Buffer, false);
_presentationTimestamp += VIDEO_TIMESTAMP_SPACING;
if (encodedBuffer != null)
{
OnTestPatternSampleReady?.Invoke(SDPMediaTypesEnum.video, VIDEO_TIMESTAMP_SPACING, encodedBuffer);
}
stampedTestPattern.Dispose();
}
}
}
}
private static void SendTestPattern(object state)
{
try
{
lock (_sendTestPatternTimer)
{
unsafe
{
byte[] sampleBuffer = null;
byte[] encodedBuffer = null;
if (OnTestPatternSampleReady != null)
{
var stampedTestPattern = _testPattern.Clone() as System.Drawing.Image;
AddTimeStampAndLocation(stampedTestPattern, DateTime.UtcNow.ToString("dd MMM yyyy HH:mm:ss:fff"), "Test Pattern");
sampleBuffer = BitmapToRGB24(stampedTestPattern as System.Drawing.Bitmap);
fixed(byte *p = sampleBuffer)
{
byte[] convertedFrame = null;
_colorConverter.ConvertRGBtoYUV(p, VideoSubTypesEnum.BGR24, _testPattern.Width, _testPattern.Height, _stride, VideoSubTypesEnum.I420, ref convertedFrame);
fixed(byte *q = convertedFrame)
{
int encodeResult = _vpxEncoder.Encode(q, convertedFrame.Length, 1, ref encodedBuffer);
if (encodeResult != 0)
{
logger.LogWarning("VPX encode of video sample failed.");
}
}
}
stampedTestPattern.Dispose();
stampedTestPattern = null;
OnTestPatternSampleReady?.Invoke(SDPMediaTypesEnum.video, VP8_TIMESTAMP_SPACING, encodedBuffer);
encodedBuffer = null;
}
else
{
_sendTestPatternTimer?.Dispose();
_sendTestPatternTimer = null;
}
}
}
}
catch (Exception excp)
{
logger.LogError("Exception SendTestPattern. " + excp);
}
}
private async void SampleTestPattern()
{
try
{
logger.LogDebug("Starting test pattern sampling thread.");
_isTestPatternSampling = true;
Bitmap testPattern = new Bitmap(_testPatternImagePath);
// Get the stride.
Rectangle rect = new Rectangle(0, 0, testPattern.Width, testPattern.Height);
System.Drawing.Imaging.BitmapData bmpData =
testPattern.LockBits(rect, System.Drawing.Imaging.ImageLockMode.ReadWrite,
testPattern.PixelFormat);
// Get the address of the first line.
int stride = bmpData.Stride;
testPattern.UnlockBits(bmpData);
// Initialise the video codec and color converter.
SIPSorceryMedia.VpxEncoder vpxEncoder = new VpxEncoder();
vpxEncoder.InitEncoder((uint)testPattern.Width, (uint)testPattern.Height, (uint)stride);
SIPSorceryMedia.ImageConvert colorConverter = new ImageConvert();
byte[] sampleBuffer = null;
byte[] encodedBuffer = null;
int sampleCount = 0;
uint rtpTimestamp = 0;
while (!_exit)
{
if (OnTestPatternSampleReady == null)
{
logger.LogDebug("No active clients, test pattern sampling paused.");
break;
}
else
{
var stampedTestPattern = testPattern.Clone() as System.Drawing.Image;
AddTimeStampAndLocation(stampedTestPattern, DateTime.UtcNow.ToString("dd MMM yyyy HH:mm:ss:fff"), "Test Pattern");
sampleBuffer = BitmapToRGB24(stampedTestPattern as System.Drawing.Bitmap);
unsafe
{
fixed(byte *p = sampleBuffer)
{
byte[] convertedFrame = null;
colorConverter.ConvertRGBtoYUV(p, VideoSubTypesEnum.BGR24, testPattern.Width, testPattern.Height, stride, VideoSubTypesEnum.I420, ref convertedFrame);
fixed(byte *q = convertedFrame)
{
int encodeResult = vpxEncoder.Encode(q, convertedFrame.Length, 1, ref encodedBuffer);
if (encodeResult != 0)
{
logger.LogWarning("VPX encode of video sample failed.");
continue;
}
}
}
stampedTestPattern.Dispose();
OnTestPatternSampleReady?.Invoke(SDPMediaTypesEnum.video, rtpTimestamp, encodedBuffer);
sampleCount++;
rtpTimestamp += VP8_TIMESTAMP_SPACING;
}
await Task.Delay(30);
}
}
testPattern.Dispose();
vpxEncoder.Dispose();
}
catch (Exception excp)
{
logger.LogError("Exception SampleTestPattern. " + excp);
}
finally
{
logger.LogDebug("test pattern sampling thread stopped.");
_isTestPatternSampling = false;
}
}