int ISampleGrabberCB.SampleCB(double sampleTime, IMediaSample pSample)
{
try
{
if (transcoderError != null)
{
return(WinAPI.E_FAIL);
}
samplesProcessed += 1;
int dataLen = pSample.GetActualDataLength();
IntPtr bufPtr;
int hr = pSample.GetPointer(out bufPtr);
bool processed = ProcessSample(bufPtr, dataLen, sampleTime);
return(processed ? WinAPI.S_OK : WinAPI.E_FAIL);
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.ToString());
}
finally
{
Marshal.ReleaseComObject(pSample);
}
return(WinAPI.E_FAIL);
} // end of SampleCB
public Int32 SampleCB(Double SampleTime, IMediaSample pSample)
{
if (pSample == null)
{
return(-1);
}
var len = pSample.GetActualDataLength( );
IntPtr pbuf;
if (pSample.GetPointer(out pbuf) == 0 && len > 0)
{
var buf = new Byte [len];
Marshal.Copy(pbuf, buf, 0, len);
var image = new Bitmap(640, 480);
var at = 0;
if (len % 3 != 0)
{
// image is not bitmap 24bit, what now, burn it to the ground?
return(0);
}
for (var bOff = 0; bOff < len; bOff += 3)
{
var color = Color.FromArgb(buf [bOff + 2], buf [bOff + 1], buf [bOff]);
var x = (image.Width - 1) - (at % image.Width);
var y = (image.Height - 1) - (at / image.Width % image.Height);
image.SetPixel(x, y, color);
at++;
}
lastImage?.Dispose( );
lastImage = image;
}
Marshal.ReleaseComObject(pSample);
return(0);
}
public int SampleCB(double SampleTime, IMediaSample pSample)
{
if (pSample == null)
{
return(-1);
}
if (Trigger.WaitOne(0))
{
int len = pSample.GetActualDataLength();
if (len > 0)
{
IntPtr buf;
if (pSample.GetPointer(out buf) == 0)
{
byte[] buffer = new byte[len];
Marshal.Copy(buf, buffer, 0, len);
using (var bmp = new Bitmap(Width, Height, Stride, System.Drawing.Imaging.PixelFormat.Format24bppRgb, buf))
{
bmp.RotateFlip(RotateFlipType.Rotate180FlipX);
_previewImage = (Bitmap)bmp.Clone();
callback?.Invoke();
//using (var ms = new MemoryStream())
//{
// //bmp.Save(ms, System.Drawing.Imaging.ImageFormat.Png);
// bmp.Save("hallo.pnb");
// //byte[] data = ms.ToArray();
// //var uri = new Uri($"");
// //var req = (HttpWebRequest)HttpWebRequest.Create(uri);
// //req.Method = "POST";
// //req.ContentType = "application/octet-stream";
// //req.Headers.Add("Ocp-Apim-Subscription-Key", "");
// //req.ContentLength = data.Length;
// //using (var stm = req.GetRequestStream())
// // stm.Write(data, 0, data.Length);
// //using (var res = req.GetResponse())
// //using (var stm = res.GetResponseStream())
// //using (var sr = new StreamReader(stm))
// //using (var jr = new JsonTextReader(sr))
// //{
// // var obj = serializer.Deserialize<ExpandoObject[]>(jr);
// //}
//}
}
}
}
Trigger.Reset();
}
Marshal.ReleaseComObject(pSample);
return(0);
}
/// <summary>
///
/// </summary>
/// <param name="SampleTime"></param>
/// <param name="pSample"></param>
/// <returns></returns>
public int SampleCB(double SampleTime, IMediaSample pSample)
{
IntPtr pBuffer;
pSample.GetPointer(out pBuffer);
int BufferLen = pSample.GetActualDataLength();
Marshal.ReleaseComObject(pSample);
return(0);
}
void TestLength()
{
int hr;
int iSize, iLen, iLen2;
iSize = m_ims.GetSize();
iLen = m_ims.GetActualDataLength();
// Since we aren't using compression, size and datalen should
// be the same.
Debug.Assert(iSize == iLen, "GetSize, GetActualDatalen");
// Change the datalen
hr = m_ims.SetActualDataLength(iLen - 1);
Marshal.ThrowExceptionForHR(hr);
// Make sure the change, changed
iLen2 = m_ims.GetActualDataLength();
Debug.Assert(iLen - 1 == iLen2, "Get/Set ActualDataLen");
}
public MediaSample(IMediaSample sample)
{
m_Size = sample.GetSize();
m_ActualDataLength = sample.GetActualDataLength();
m_IsSyncPoint = sample.IsSyncPoint() == 0;
m_IsPreroll = sample.IsPreroll() == 0;
m_IsDiscontinuity = sample.IsDiscontinuity() == 0;
sample.GetTime(out m_TimeStart, out m_TimeEnd);
sample.GetMediaTime(out m_MediaTimeStart, out m_MediaTimeEnd);
m_Buffer = Marshal.AllocCoTaskMem(m_Size);
}
public int SampleCB(double SampleTime, IMediaSample pSample)
{
if (pSample == null) return -1;
int len = pSample.GetActualDataLength();
IntPtr pBuf;
if (pSample.GetPointer(out pBuf) == 0 && len > 0)
{
m_imageBuf = null;
m_imageBuf = new byte[len];
Marshal.Copy(pBuf, m_imageBuf, 0, len);
}
return 0;
}
public int SampleCB(double SampleTime, IMediaSample pSample)
{
DateTime dt = DateTime.Now;
lock (this)
{
sb.AppendFormat("{0:T}.{1:D3}: ", dt, dt.Millisecond);
sb.AppendFormat("SampleTime={0:G4}, ", SampleTime);
if (pSample != null)
{
long start = 0, end = 0;
pSample.GetTime(out start, out end);
sb.AppendFormat("Time(start={0}, end={1}), ", start, end);
pSample.GetMediaTime(out start, out end);
sb.AppendFormat("MediaTime(start={0}, end={1}), ", start, end);
int len = pSample.GetActualDataLength();
sb.AppendFormat("data length={0}, ", len);
bool syncpoint = pSample.IsSyncPoint() == 0;
sb.AppendFormat("keyframe={0}", syncpoint);
if (pSample.IsDiscontinuity() == 0)
{
sb.Append(", Discontinuity");
}
if (pSample.IsPreroll() == 0)
{
sb.Append(", Preroll");
}
int n = Math.Min(len, 8);
IntPtr pbuf;
if (pSample.GetPointer(out pbuf) == 0)
{
byte[] buf = new byte[n];
Marshal.Copy(pbuf, buf, 0, n);
sb.Append(", Data=");
for (int i = 0; i < n; i++)
{
sb.AppendFormat("{0:X2}", buf[i]);
}
sb.Append("...");
}
}
else
{
sb.Append("pSample==NULL!");
}
sb.Append(Environment.NewLine);
}
Marshal.ReleaseComObject(pSample);
return(0);
}
int ISampleGrabberCB.SampleCB(double SampleTime, IMediaSample pSample)
{
// SampleCB was called
m_Called |= 1;
// Simple test to see if parms are correct
Debug.Assert(pSample.GetActualDataLength() > 0, "SampleCB size");
// Set the completion event so DoTests can return
m_TestComplete.Set();
Marshal.ReleaseComObject(pSample);
return(0);
}
public int SampleCB(double SampleTime, IMediaSample pSample)
{
// Console.WriteLine("**********************55555555555555555555555**********************");
if (pSample == null) return -1;
int len = pSample.GetActualDataLength();
IntPtr pbuf;
if (pSample.GetPointer(out pbuf) == 0 && len > 0)
{
byte[] buf = new byte[len];
Marshal.Copy(pbuf, buf, 0, len);
for (int i = 0; i < len; i += 2)
buf[i] = (byte)(255 - buf[i]);
Marshal.Copy(buf, 0, pbuf, len);
}
return 0;
}
public static void CopySample(IMediaSample src, IMediaSample dest, bool copySamples)
{
var sourceSize = src.GetActualDataLength();
if (copySamples)
{
IntPtr sourceBuffer;
src.GetPointer(out sourceBuffer);
IntPtr destBuffer;
dest.GetPointer(out destBuffer);
CopyMemory(destBuffer, sourceBuffer, sourceSize);
}
// Copy the sample times
long start, end;
if (src.GetTime(out start, out end) == S_OK)
{
dest.SetTime(start, end);
}
if (src.GetMediaTime(out start, out end) == S_OK)
{
dest.SetMediaTime(start, end);
}
// Copy the media type
AMMediaType mediaType;
var changed = src.GetMediaType(out mediaType) == 0;
if (changed)
{
dest.SetMediaType(mediaType);
DsUtils.FreeAMMediaType(mediaType);
}
dest.SetSyncPoint(src.IsSyncPoint() == S_OK);
dest.SetPreroll(src.IsPreroll() == S_OK);
dest.SetDiscontinuity(src.IsDiscontinuity() == S_OK);
// Copy the actual data length
dest.SetActualDataLength(sourceSize);
}
public MediaSample(IMediaSample sample)
{
m_Size = sample.GetSize();
m_ActualDataLength = sample.GetActualDataLength();
m_IsSyncPoint = sample.IsSyncPoint() == 0;
m_IsPreroll = sample.IsPreroll() == 0;
m_IsDiscontinuity = sample.IsDiscontinuity() == 0;
m_HasTime = sample.GetTime(out m_TimeStart, out m_TimeEnd) == 0;
m_HasMediaTime = sample.GetMediaTime(out m_MediaTimeStart, out m_MediaTimeEnd) == 0;
m_Buffer = Marshal.AllocCoTaskMem(m_Size);
// Copy the media type
AMMediaType mediaType;
if (sample.GetMediaType(out mediaType) == 0)
{
m_MediaType = mediaType;
}
}
public static void CopySample(IMediaSample src, IMediaSample dest, bool copySamples)
{
var sourceSize = src.GetActualDataLength();
if (copySamples)
{
IntPtr sourceBuffer;
src.GetPointer(out sourceBuffer);
IntPtr destBuffer;
dest.GetPointer(out destBuffer);
CopyMemory(destBuffer, sourceBuffer, sourceSize);
}
// Copy the sample times
long start, end;
if (src.GetTime(out start, out end) == S_OK)
{
dest.SetTime(start, end);
}
if (src.GetMediaTime(out start, out end) == S_OK)
{
dest.SetMediaTime(start, end);
}
// Copy the media type
AMMediaType mediaType;
src.GetMediaType(out mediaType);
dest.SetMediaType(mediaType);
DsUtils.FreeAMMediaType(mediaType);
dest.SetSyncPoint(src.IsSyncPoint() == S_OK);
dest.SetPreroll(src.IsPreroll() == S_OK);
dest.SetDiscontinuity(src.IsDiscontinuity() == S_OK);
// Copy the actual data length
dest.SetActualDataLength(sourceSize);
}
int ISampleGrabberCB.SampleCB(double SampleTime, IMediaSample pSample)
{
int result = 0;
if (_fSampleCB != null)
{
_fSampleCB(SampleTime, pSample);
}
IntPtr pBuff = IntPtr.Zero;
var size = pSample.GetActualDataLength();
pSample.GetPointer(out pBuff);
if (_fBufferCB != null)
{
_fBufferCB(SampleTime, pBuff, size);
}
Marshal.FinalReleaseComObject(pSample);
return(result);
}
public int SampleCB(double sampleTime, IMediaSample pSample)
{
try
{
if (!bProcess)
{
return(WinAPI.E_FAIL);
}
// internal stats
++sampleIndex;
long tStart, tEnd;
pSample.GetMediaTime(out tStart, out tEnd);
Debug.Assert(tStart < tEnd);
Debug.Assert(tStart > lastMediaTime);
sampleProcessed += tEnd - tStart;
sampleDropped += tStart - lastMediaTime - 1;
lastMediaTime = tEnd - 1;
int dataLen = pSample.GetActualDataLength();
IntPtr bufPtr;
int hr = pSample.GetPointer(out bufPtr);
Debug.Assert(0 == hr);
bool processed = ProcessSample(bufPtr, dataLen, sampleTime);
return(processed ? WinAPI.S_OK : WinAPI.E_FAIL);
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.ToString());
}
finally
{
Marshal.ReleaseComObject(pSample);
}
return(WinAPI.E_FAIL);
} // end of SampleCB
public int SampleCB(double SampleTime, IMediaSample pSample)
{
// Console.WriteLine("**********************55555555555555555555555**********************");
if (pSample == null)
{
return(-1);
}
int len = pSample.GetActualDataLength();
IntPtr pbuf;
if (pSample.GetPointer(out pbuf) == 0 && len > 0)
{
byte[] buf = new byte[len];
Marshal.Copy(pbuf, buf, 0, len);
for (int i = 0; i < len; i += 2)
{
buf[i] = (byte)(255 - buf[i]);
}
Marshal.Copy(buf, 0, pbuf, len);
}
return(0);
}
// Set the timestamps
override public int SetTimeStamps(IMediaSample pSample)
{
int hr;
int iRead = pSample.GetActualDataLength();
long SampleTime = GetTimeFromBytes(iRead);
long TimeStart = m_FSampleTime;
m_FSampleTime = m_FSampleTime + SampleTime;
long TimeStop = m_FSampleTime;
hr = pSample.SetTime(TimeStart, TimeStop);
if (hr >= 0)
{
TimeStart = m_FMediaTime;
m_FMediaTime = m_FMediaTime + SampleTime;
TimeStop = m_FMediaTime;
hr = pSample.SetMediaTime(TimeStart, TimeStop);
DsError.ThrowExceptionForHR(hr);
}
return(hr);
}
// Set the timestamps
public override int SetTimeStamps(IMediaSample pSample)
{
int hr;
int iRead = pSample.GetActualDataLength();
long SampleTime = GetTimeFromBytes(iRead);
long TimeStart = m_FSampleTime;
m_FSampleTime = m_FSampleTime + SampleTime;
long TimeStop = m_FSampleTime;
hr = pSample.SetTime(TimeStart, TimeStop);
if (hr >= 0)
{
TimeStart = m_FMediaTime;
m_FMediaTime = m_FMediaTime + SampleTime;
TimeStop = m_FMediaTime;
hr = pSample.SetMediaTime(TimeStart, TimeStop);
DsError.ThrowExceptionForHR(hr);
}
return hr;
}
public int SampleCB(double SampleTime, IMediaSample pSample)
{
if (!bProcess)
{
lastSampleTime = SampleTime;
return(WinAPI.E_FAIL);
}
// internal stats
++sampleIndex;
long tStart, tEnd;
pSample.GetMediaTime(out tStart, out tEnd);
Debug.Assert(tStart < tEnd);
Debug.Assert(tStart > lastMediaTime);
sampleProcessed += tEnd - tStart;
sampleDropped += tStart - lastMediaTime - 1;
lastMediaTime = tEnd - 1;
int dataLen = pSample.GetActualDataLength();
IntPtr bufPtr;
int hr = pSample.GetPointer(out bufPtr);
Debug.Assert(0 == hr);
// BEGIN TRACE
int bufSize = pSample.GetSize();
long timeStart, timeEnd;
pSample.GetTime(out timeStart, out timeEnd);
string msg = string.Format(
"SampleCB ({0}) {1}, sampleTime:{2} datalen:{3} bufsize:{4} mediaTime:{5}-{6} time:{7}-{8}",
name, sampleIndex, SampleTime, dataLen, bufSize, tStart, tEnd, timeStart, timeEnd);
Trace.WriteLine(msg);
if (tStart - lastMediaTime - 1 > 0)
{
msg = string.Format("!!! Frame drop: {0}", tStart - lastMediaTime - 1 > 0);
Trace.WriteLine(msg);
}
//END TRACE
byte[] buf = new byte[dataLen];
Marshal.Copy(bufPtr, buf, 0, dataLen);
if (file != null)
{
file.Write(buf, 0, dataLen);
}
//DBG - simulate encoding error
//if (sampleIndex > 100)
// goto STOP_CAPTURE;
if (mediaState != null && mediaState.mpeg2Enc != null)
{
PrimoSoftware.AVBlocks.Transcoder enc = mediaState.mpeg2Enc;
MediaSample inputSample = new MediaSample();
inputSample.Buffer = new MediaBuffer(buf);
inputSample.StartTime = Math.Max(SampleTime, 0);
//TODO: end time
try
{
bool pushed = false;
// transcoder.Push() is not threads safe.
// lock (enc){ } ensure that only one thread is calling transcoder.Push()
lock (enc)
{
pushed = enc.Push(StreamNumber, inputSample);
}
if (pushed)
{
return(0);
}
}
catch (Exception ex)
{
System.Diagnostics.Trace.WriteLine(ex.ToString());
}
Trace.WriteLine("PushSample FAILED");
}
//STOP_CAPTURE:
Trace.WriteLine("SampleCB: Before Post STOP_CAPTURE");
WinAPI.PostMessage(MainWindow, Util.WM_STOP_CAPTURE, new IntPtr(streamNumber), IntPtr.Zero);
Trace.WriteLine("SampleCB: After Post STOP_CAPTURE");
bProcess = false;
return(WinAPI.E_FAIL);
} // end of SampleCB