public static bool IsVideoDeviceConnected(string altname)
{
if (string.IsNullOrEmpty(altname))
{
return(true); // NONE selected - don't show watermark in this case.
}
int success = DirectShowDevices.buildDeviceNamesFind(DirectShowDevices.DEVICETYPE.VideoCaptureDevice, altname);
return(success == 0);
}
public static void BuildDeviceList()
{
devices.Clear();
IntPtr devCtx = DirectShowDevices.buildDeviceList(DirectShowDevices.DEVICETYPE.AudioCaptureDevice);
int numDevices = DirectShowDevices.getNumberDevices(devCtx);
if (numDevices == 0)
{
DirectShowDevices.freeDeviceList(DirectShowDevices.DEVICETYPE.AudioCaptureDevice, devCtx);
return;
}
string tmpStrAltName = string.Empty;
string tmpName = string.Empty;
for (int i = 0; i < numDevices; i++)
{
DeviceInfo devInfo = new DeviceInfo();
//save the friendly name
DirectShowDevices.getDeviceNameFromStr(devCtx, out tmpName, i);
devInfo.name = tmpName;
//save the alternative name
DirectShowDevices.getDeviceAltNameFromStr(devCtx, out tmpStrAltName, i);
devInfo.altname = tmpStrAltName.ToString();
//set the device index from built list
devInfo.deviceIndex = i;
devInfo.outputs.Clear();
int numStreams = DirectShowDevices.getNumStreamParamsInDeviceFromIndex(devCtx, i);
List <AudioInfo> checkDuplicates = new List <AudioInfo>();
for (int j = 0; j < numStreams; j++)
{
DirectShowDevices.AudioStreamParams tmpParams = new DirectShowDevices.AudioStreamParams();
AudioInfo outputInfo = new AudioInfo();
DirectShowDevices.getAudioStreamParamsInDeviceFromIndex(devCtx, out tmpParams, i, j);
outputInfo.channel = tmpParams.nChannels;
outputInfo.samplingRate = tmpParams.nSamplesPerSec;
outputInfo.avgBytesPerSec = tmpParams.nAvgBytesPerSec;
outputInfo.blockAlign = tmpParams.nBlockAlign;
outputInfo.bitPerSample = tmpParams.wBitsPerSample;
//check duplicates
bool found = false;
//find duplicate resolutions, and remove the lower framerate ones, first by producing a list of them
foreach (var a in checkDuplicates)
{
if (a.channel == outputInfo.channel && a.samplingRate == outputInfo.samplingRate &&
a.avgBytesPerSec == tmpParams.nAvgBytesPerSec && a.blockAlign == tmpParams.nBlockAlign)
{
found = true;
//found first occurence, we can get out of here
break;
}
}
if (found == false)
{
checkDuplicates.Add(outputInfo);
}
AddOutputEntry(devInfo, outputInfo);
}
//add this device to the list along with its stream info
if (devInfo.outputs.Count > 0)
{
devInfo.outputs.Sort(SortEntriesDescendingBytesPerSec);
devices.Add(devInfo);
}
tmpStrAltName = null;
}
DirectShowDevices.freeDeviceList(DirectShowDevices.DEVICETYPE.AudioCaptureDevice, devCtx);
RebuildMixCastAudioDevices(44100);
}
public static void BuildDeviceList()
{
devices.Clear();
IntPtr devCtx = DirectShowDevices.buildDeviceList(DirectShowDevices.DEVICETYPE.VideoCaptureDevice);
int numDevices = DirectShowDevices.getNumberDevices(devCtx);
if (numDevices == 0)
{
DirectShowDevices.freeDeviceList(DirectShowDevices.DEVICETYPE.VideoCaptureDevice, devCtx);
return;
}
string tmpStrAltName = string.Empty;
string tmpName = string.Empty;
for (int i = 0; i < numDevices; i++)
{
DeviceInfo devInfo = new DeviceInfo();
//save the friendly name
DirectShowDevices.getDeviceNameFromStr(devCtx, out tmpName, i);
devInfo.name = tmpName;
//Filter out StarGazer's other sensors "Intel(R) RealSense(TM) Camera SR300" other than the RGB
if (devInfo.name.ToLower().Contains("sr300") && !devInfo.name.ToLower().Contains("rgb"))
{
continue;
}
//save the alternative name
DirectShowDevices.getDeviceAltNameFromStr(devCtx, out tmpStrAltName, i);
devInfo.altname = tmpStrAltName;
//set the device index from built list
devInfo.deviceIndex = i;
devInfo.outputs.Clear();
int numStreams = DirectShowDevices.getNumStreamParamsInDeviceFromIndex(devCtx, i);
List <OutputInfo> checkDuplicates = new List <OutputInfo>();
List <OutputInfo> removeTheseDuplicates = new List <OutputInfo>();
for (int j = 0; j < numStreams; j++)
{
DirectShowDevices.VideoStreamParams tmpParams = new DirectShowDevices.VideoStreamParams();
StringBuilder tmpPixelFormat = new StringBuilder(50);
OutputInfo outputInfo = new OutputInfo();
DirectShowDevices.getVideoStreamParamsInDeviceFromIndex(devCtx, out tmpParams, i, j);
outputInfo.bitrate = tmpParams.bitrate;
outputInfo.height = tmpParams.height;
outputInfo.width = tmpParams.width;
outputInfo.framerate = tmpParams.framerate;
outputInfo.numPlanes = tmpParams.numPlanes;
outputInfo.bitsPerPixel = tmpParams.bitsPerPixel;
DirectShowDevices.avPixFmtToString(tmpParams.pixFmt, tmpPixelFormat);
outputInfo.pixelFormat = tmpPixelFormat.ToString();
if (outputInfo.width == 0 || outputInfo.height == 0)
{
continue;
}
//check duplicates
bool found = false;
//find duplicate resolutions, and remove the lower framerate ones, first by producing a list of them
foreach (var a in checkDuplicates)
{
if (a.width == outputInfo.width && a.height == outputInfo.height && a.pixelFormat == outputInfo.pixelFormat)
{
found = true;
//if the stored info has higher framerate
if (a.framerate > outputInfo.framerate)
{
//keep the stored one and remove the one we just used to compare, outputInfo
removeTheseDuplicates.Add(outputInfo);
}
else if (a.framerate < outputInfo.framerate)
{
//keep the new one and remove the old one
removeTheseDuplicates.Add(a);
checkDuplicates.Remove(a);
checkDuplicates.Add(outputInfo);
}
//found first occurence, we can get out of here
break;
}
}
if (found == false)
{
checkDuplicates.Add(outputInfo);
}
AddOutputEntry(devInfo, outputInfo);
}
//remove the lower framerates of duplicate resolutions and pixel format
if (devInfo.outputs.Count > 0)
{
foreach (var a in removeTheseDuplicates)
{
devInfo.outputs.Remove(a);
}
}
//add this device to the list along with its stream info
if (devInfo.outputs.Count > 0)
{
devices.Add(devInfo);
}
removeTheseDuplicates.Clear();
checkDuplicates.Clear();
removeTheseDuplicates = null;
checkDuplicates = null;
}
tmpStrAltName = null;
DirectShowDevices.freeDeviceList(DirectShowDevices.DEVICETYPE.VideoCaptureDevice, devCtx);
ProcessRealSenseInput();
}