/// <summary>
/// Check the registry and compare to the current list of speakers on
/// the machine (in case there is a mismatch). Or return the default
/// system speaker if none were selected.
/// </summary>
/// <returns>
/// The FilterInfo of the speaker that was selected and still exists
/// </returns>
public static FilterInfo SelectedSpeaker()
{
FilterInfo selectedSpeaker = AudioRenderer.DefaultFilterInfo();
string[] regSelectedSpeaker = AVReg.ValueNames(AVReg.SelectedSpeaker);
if (regSelectedSpeaker != null)
{
FilterInfo[] spkrs = AudioRenderer.Renderers();
for (int i = 0; i < spkrs.Length; i++)
{
for (int j = 0; j < regSelectedSpeaker.Length; j++)
{
if (spkrs[i].Moniker == regSelectedSpeaker[j])
{
selectedSpeaker = spkrs[i];
break;
}
}
}
}
else
{
selectedSpeaker = AudioRenderer.DefaultFilterInfo();
}
return(selectedSpeaker);
}
private void RestoreLinkedCamera()
{
// List the selected cameras
foreach (FilterInfo fi in VideoCapability.SelectedCameras())
{
cboLinkedCamera.Items.Add(fi);
}
// Read from registry and select camera, if in list
string[] linkedCamera = AVReg.ValueNames(AVReg.LinkedCamera);
if (linkedCamera != null && linkedCamera.Length > 0)
{
Debug.Assert(linkedCamera.Length == 1);
for (int i = 0; i < cboLinkedCamera.Items.Count; i++)
{
FilterInfo fi = (FilterInfo)cboLinkedCamera.Items[i];
if (fi.Moniker == linkedCamera[0])
{
cboLinkedCamera.SelectedItem = fi;
}
}
}
if (cboLinkedCamera.SelectedIndex == -1 && cboLinkedCamera.Items.Count > 0)
{
cboLinkedCamera.SelectedIndex = 0;
}
cboLinkedCamera.Enabled = cboLinkedCamera.Items.Count > 1;
}
private void cboMicrophones_SelectedIndexChanged(object sender, System.EventArgs e)
{
try
{
if (acg != null)
{
AVReg.DeleteValue(AVReg.SelectedMicrophone, acg.Source.Moniker);
DeactivateAudioCapability();
}
if (cboMicrophones.SelectedIndex != 0)
{
FilterInfo fi = (FilterInfo)cboMicrophones.SelectedItem;
ActivateAudioCapability(fi);
AVReg.WriteValue(AVReg.SelectedMicrophone, fi.Moniker, fi.Name);
}
btnAdvancedAudioSettings.Enabled = cboMicrophones.SelectedIndex > 0;
ckPlayAudio.Enabled = cboMicrophones.SelectedIndex > 0;
lblTestAudio.Enabled = cboMicrophones.SelectedIndex > 0;
}
catch (COMException ex)
{
Log(DShowError._AMGetErrorText(ex.ErrorCode));
Log(ex.ToString());
}
catch (Exception ex)
{
Log(ex.ToString());
}
}
/// <summary>
/// Save the device's current settings to the registry
/// </summary>
protected void SaveDeviceSettings()
{
if (cg.Source.HasPhysConns)
{
AVReg.WriteValue(DeviceKey(), AVReg.PhysicalConnectorIndex, cg.Source.PhysicalConnectorIndex);
}
}
/// <summary>
/// Restore the camera's last settings from the registry
/// </summary>
private void RestoreCameraSettings()
{
object setting;
if (cg is VideoCaptureGraph)
{
VideoCaptureGraph vcg = (VideoCaptureGraph)cg;
if (vcg.VideoSource.HasVideoStandards)
{
if ((setting = AVReg.ReadValue(DeviceKey(), AVReg.VideoStandardIndex)) != null)
{
vcg.VideoSource.VideoStandardIndex = (int)setting;
}
}
}
else if (cg is DVCaptureGraph)
{
DVCaptureGraph dvcg = (DVCaptureGraph)cg;
if (dvcg.VideoSource.HasVideoStandards)
{
if ((setting = AVReg.ReadValue(DeviceKey(), AVReg.VideoStandardIndex)) != null)
{
dvcg.VideoSource.VideoStandardIndex = (int)setting;
}
}
}
if (cg.Source.HasPhysConns)
{
if ((setting = AVReg.ReadValue(DeviceKey(), AVReg.PhysicalConnectorIndex)) != null)
{
cg.Source.PhysicalConnectorIndex = (int)setting;
}
}
}
private void clbCameras_ItemCheck(object sender, System.Windows.Forms.ItemCheckEventArgs e)
{
try
{
if (e.NewValue == CheckState.Checked)
{
ActivateVideoCapability((FilterInfo)clbCameras.Items[e.Index]);
// Only save the camera after we were able to successfully activate it
AVReg.WriteValue(AVReg.SelectedCameras, vcg.Source.Moniker,
vcg.Source.FriendlyName);
}
else if (e.NewValue == CheckState.Unchecked)
{
// Remove the camera from the registry, even if we can't shut it down
AVReg.DeleteValue(AVReg.SelectedCameras, vcg.Source.Moniker);
DeactivateVideoCapability((FilterInfo)clbCameras.SelectedItem);
}
}
catch (COMException ex)
{
Log(DShowError._AMGetErrorText(ex.ErrorCode));
Log(ex.ToString());
}
catch (Exception ex)
{
Log(ex.ToString());
}
}
public void SaveVideoCompressorSettings()
{
VideoCompressorQualityInfo vcqi = vcg.VideoCompressor.QualityInfo;
// Cast to int, otherwise it gets stored as a string
AVReg.WriteValue(DeviceKey(), AVReg.CompressorBitRate, (int)vcqi.BitRate);
AVReg.WriteValue(DeviceKey(), AVReg.CompressorKeyFrameRate, vcqi.KeyFrameRate);
}
/// <summary>
/// Save the camera's current settings to the registry
/// </summary>
public void SaveCameraSettings()
{
if (vcg.VideoSource.HasVideoStandards)
{
AVReg.WriteValue(DeviceKey(), AVReg.VideoStandardIndex, vcg.VideoSource.VideoStandardIndex);
}
SaveDeviceSettings();
}
/// <summary>
/// Restore the video compressor's last settings from the registry
/// </summary>
private void RestoreVideoCompressorSettings()
{
VideoCompressorQualityInfo vcqi = DefaultQualityInfo();
vcqi.KeyFrameRate = (int)AVReg.ReadValue(DeviceKey(), AVReg.CompressorKeyFrameRate);
vcqi.BitRate = (uint)((int)AVReg.ReadValue(DeviceKey(), AVReg.CompressorBitRate));
vcg.VideoCompressor.QualityInfo = vcqi;
}
/// <summary>
/// Save the microphone's current settings to the registry. This only applies to
/// audio sources, not DV sources
/// </summary>
public void SaveMicrophoneSettings()
{
AudioCaptureGraph acg = cg as AudioCaptureGraph;
if (acg != null)
{
AVReg.WriteValue(DeviceKey(), AVReg.MicrophoneSourceIndex,
acg.Source.InputPinIndex);
SaveDeviceSettings();
}
}
public void SaveLinkedCamera(FilterInfo fi)
{
// Delete previous link value
string[] linkedCamera = AVReg.ValueNames(AVReg.LinkedCamera);
if (linkedCamera != null && linkedCamera.Length > 0)
{
Debug.Assert(linkedCamera.Length == 1);
AVReg.DeleteValue(AVReg.LinkedCamera, linkedCamera[0]);
}
// Set the new value
AVReg.WriteValue(AVReg.LinkedCamera, fi.Moniker, fi.Name);
}
private void frmAVDevices_Closing(object sender, System.ComponentModel.CancelEventArgs e)
{
SaveSettings();
if (ac != null)
{
// If a camera hasn't been linked, link the first one
if (clbCameras.CheckedItems.Count > 0)
{
bool goodLink = false;
// Read from registry and select camera, if in list
string[] linkedCamera = AVReg.ValueNames(AVReg.LinkedCamera);
if (linkedCamera != null && linkedCamera.Length > 0)
{
Debug.Assert(linkedCamera.Length == 1);
for (int i = 0; i < clbCameras.CheckedItems.Count; i++)
{
FilterInfo fi = (FilterInfo)clbCameras.CheckedItems[i];
if (fi.Moniker == linkedCamera[0])
{
goodLink = true;
break;
}
}
}
if (!goodLink)
{
SaveLinkedCamera((FilterInfo)clbCameras.CheckedItems[0]);
}
}
ac.Dispose();
}
foreach (VideoCapability vc in vcs.Values)
{
vc.Dispose();
}
if (ckPlayVideo.Checked)
{
// To clean up any video windows
GC.Collect();
}
tmrPerf.Stop();
trouble.Close();
}
/// <summary>
/// Restore the audio device input pin setting from the registry. Not applicable to DV sources
/// </summary>
private void RestoreMicrophoneSettings()
{
AudioCaptureGraph acg = cg as AudioCaptureGraph;
if (acg != null)
{
object setting = AVReg.ReadValue(DeviceKey(), AVReg.MicrophoneSourceIndex);
if (setting != null)
{
if ((int)setting < cg.Source.InputPins.Count)
{
acg.AudioSource.InputPinIndex = (int)setting;
}
}
}
}
/// <summary>
/// Restore custom buffer settings from the registry, if any. This doesn't seem to work with DV Sources.
/// It is also not relevant for the Opus Encoder since the settings will be overridden later in that case.
/// </summary>
private void RestoreBufferSettings()
{
if (cg is AudioCaptureGraph)
{
AudioCaptureGraph acg = (AudioCaptureGraph)cg;
object bufSz = AVReg.ReadValue(DeviceKey(), AVReg.AudioBufferSize);
if (bufSz != null)
{
acg.AudioSource.BufferSize = (int)bufSz;
}
object bufCnt = AVReg.ReadValue(DeviceKey(), AVReg.AudioBufferCount);
if (bufCnt != null)
{
acg.AudioSource.BufferCount = (int)bufCnt;
}
}
}
/// <summary>
/// Restore the video stream's last settings from the registry
/// </summary>
private void RestoreVideoSettings()
{
// Read media type from registry
byte[] bytes = (byte[])AVReg.ReadValue(DeviceKey(), AVReg.MediaType);
if (bytes != null)
{
AVReg.ms.Position = 0;
AVReg.ms.Write(bytes, 0, bytes.Length);
AVReg.ms.Position = 0;
_AMMediaType mt = (_AMMediaType)AVReg.bf.Deserialize(AVReg.ms);
// Read format block from registry
if (mt.cbFormat != 0)
{
bytes = (byte[])AVReg.ReadValue(DeviceKey(), AVReg.FormatBlock);
Debug.Assert(bytes.Length == mt.cbFormat);
mt.pbFormat = Marshal.AllocCoTaskMem((int)mt.cbFormat);
Marshal.Copy(bytes, 0, mt.pbFormat, (int)mt.cbFormat);
Log("Restoring stream settings...");
Log(MediaType.Dump(mt));
try
{
// Set and free
cg.Source.SetMediaType(ref mt);
}
catch (COMException ex)
{
Log(DShowError._AMGetErrorText(ex.ErrorCode));
Log(ex.ToString());
}
catch (Exception ex)
{
Log(ex.ToString());
}
}
}
}
/// <summary>
/// Restore the camera's last settings from the registry
/// </summary>
private void RestoreCameraSettings()
{
object setting;
if (vcg.VideoSource.HasVideoStandards)
{
if ((setting = AVReg.ReadValue(DeviceKey(), AVReg.VideoStandardIndex)) != null)
{
vcg.VideoSource.VideoStandardIndex = (int)setting;
}
}
if (vcg.Source.HasPhysConns)
{
if ((setting = AVReg.ReadValue(DeviceKey(), AVReg.PhysicalConnectorIndex)) != null)
{
vcg.Source.PhysicalConnectorIndex = (int)setting;
}
}
}
private void cboSpeakers_SelectedIndexChanged(object sender, System.EventArgs e)
{
// Delete previous value
string[] selectedSpeaker = AVReg.ValueNames(AVReg.SelectedSpeaker);
if (selectedSpeaker != null)
{
Debug.Assert(selectedSpeaker.Length == 1);
AVReg.DeleteValue(AVReg.SelectedSpeaker, selectedSpeaker[0]);
}
// Store current value
FilterInfo fi = (FilterInfo)cboSpeakers.SelectedItem;
AVReg.WriteValue(AVReg.SelectedSpeaker, fi.Moniker, fi.Name);
if (acg != null)
{
RenderAndRunAudio(acg, false);
RenderAndRunAudio(acg);
}
}
/// <summary>
/// Save the camera's current settings to the registry
/// </summary>
public void SaveCameraSettings()
{
if (cg is VideoCaptureGraph)
{
VideoCaptureGraph vcg = (VideoCaptureGraph)cg;
if (vcg.VideoSource.HasVideoStandards)
{
AVReg.WriteValue(DeviceKey(), AVReg.VideoStandardIndex, vcg.VideoSource.VideoStandardIndex);
}
}
else if (cg is DVCaptureGraph)
{
DVCaptureGraph dvcg = (DVCaptureGraph)cg;
if (dvcg.VideoSource.HasVideoStandards) //Always false for DV devices?
{
AVReg.WriteValue(DeviceKey(), AVReg.VideoStandardIndex, dvcg.VideoSource.VideoStandardIndex);
}
}
SaveDeviceSettings();
}
/// <summary>
/// Save the stream's current settings to the registry.
/// </summary>
protected void SaveStreamSettings()
{
_AMMediaType mt = cg.Source.GetMediaType();
// Copy the pbFormat block into a byte array
if (mt.pbFormat != IntPtr.Zero && mt.cbFormat > 0)
{
byte[] pbFormat = new byte[mt.cbFormat];
Marshal.Copy(mt.pbFormat, pbFormat, 0, (int)mt.cbFormat);
Marshal.FreeCoTaskMem(mt.pbFormat);
mt.pbFormat = IntPtr.Zero;
// Don't adjust cbFormat, will use on restore
AVReg.WriteValue(DeviceKey(), AVReg.FormatBlock, pbFormat);
}
AVReg.ms.Position = 0;
AVReg.bf.Serialize(AVReg.ms, mt);
AVReg.WriteValue(DeviceKey(), AVReg.MediaType, AVReg.ms.ToArray());
}
/// <summary>
/// Get the selected audio compressor from the registry. It may be a moniker of a compressor that is enabled
/// on the system or "Uncompressed". Otherwise return the default compressor.
/// </summary>
/// <returns></returns>
public static FilterInfo SelectedCompressor()
{
FilterInfo selectedCompressor = AudioCompressor.DefaultFilterInfo();
string regSelectedCompressor = (string)AVReg.ReadValue(AVReg.SelectedDevices, AVReg.AudioCompressor);
if (regSelectedCompressor != null)
{
if (regSelectedCompressor == "Uncompressed")
{
return(new FilterInfo("Uncompressed", "Uncompressed", Guid.Empty));
}
foreach (FilterInfo fi in AudioCompressor.EnabledCompressors)
{
if (fi.Moniker == regSelectedCompressor)
{
selectedCompressor = fi;
break;
}
}
}
return(selectedCompressor);
}
/// <summary>
/// Check the registry and compare to the current list of cameras on
/// the machine (in case there is a mismatch).
/// </summary>
/// <returns>
/// Return the FilterInfo for cameras that were selected and still exist
/// </returns>
public static FilterInfo[] SelectedCameras()
{
ArrayList selectedCameras = new ArrayList();
string[] regSelectedCameras = AVReg.ValueNames(AVReg.SelectedCameras);
if (regSelectedCameras != null)
{
FilterInfo[] cameras = VideoSource.Sources();
for (int i = 0; i < cameras.Length; i++)
{
for (int j = 0; j < regSelectedCameras.Length; j++)
{
if (cameras[i].Moniker == regSelectedCameras[j])
{
selectedCameras.Add(cameras[i]);
break;
}
}
}
}
return((FilterInfo[])selectedCameras.ToArray(typeof(FilterInfo)));
}
/// <summary>
/// Check the registry and compare to the current list of microphones on
/// the machine (in case there is a mismatch).
/// </summary>
/// <returns>
/// The FilterInfo for the mics that were selected and still exist
/// </returns>
public static FilterInfo[] SelectedMicrophones()
{
ArrayList selectedMics = new ArrayList();
string[] regSelectedMics = AVReg.ValueNames(AVReg.SelectedMicrophone);
if (regSelectedMics != null)
{
FilterInfo[] mics = AudioSource.Sources();
for (int i = 0; i < mics.Length; i++)
{
for (int j = 0; j < regSelectedMics.Length; j++)
{
if (mics[i].Moniker == regSelectedMics[j])
{
selectedMics.Add(mics[i]);
break;
}
}
}
}
return((FilterInfo[])selectedMics.ToArray(typeof(FilterInfo)));
}
/// <summary>
/// Populate form controls and compressor static values from the registry, while validating what was loaded.
///
/// We assume that for each control whose value needs to be persisted there is a public static int
/// field in the compressor class, the name of which is used as a key for finding validation data.
/// Validation data may come in the form of an enum with int as the underlying data type, an
/// int[] containing the accepted values, or an int[] containing min/max values. We look for them in
/// that order, stopping when the first is found.
///
/// Once validated we put the value into the corresponding ComboBox or TextBox. If validation fails
/// we get a default value from the compressor and use that instead.
/// </summary>
private void RestoreComboBoxValues()
{
// Loop over all the public statics in the compressor type.
Type compressorType = typeof(OpusAudioCompressor);
FieldInfo[] fields = compressorType.GetFields(BindingFlags.Public | BindingFlags.Static);
foreach (FieldInfo field in fields)
{
if (field.IsLiteral || field.IsInitOnly)
{
continue; //Ignore const and readonly
}
// Fetch the current value in case none is set in the registry.
// On first use, this should be the default.
object newValue = field.GetValue(null);
// Read from registry
object val = AVReg.ReadValue(AVReg.OpusCompressorKey, field.Name);
if (val != null)
{
newValue = val;
field.SetValue(null, newValue);
}
// Find the corresponding enum or array for validation
Type enumType;
int[] valuesArray;
// Check for enum first
if ((enumType = findEnumType(field.Name)) != null)
{
if (!enumType.IsEnumDefined(newValue))
{
//If the registry value is invalid, revert to default value
newValue = findDefaultValue(field.Name);
field.SetValue(null, newValue);
}
ComboBox cb = findComboBox(field.Name);
if (cb != null)
{
cb.SelectedItem = Enum.ToObject(enumType, newValue);
}
}
else if ((valuesArray = findValuesArray(field.Name)) != null)
{
// If there's no matching enum, look for the corresponding array of int.
int i = (int)newValue;
bool validated = false;
foreach (int j in valuesArray)
{
if (i == j)
{
validated = true;
break;
}
}
if (!validated)
{
newValue = findDefaultValue(field.Name);
field.SetValue(null, newValue);
}
ComboBox cb = findComboBox(field.Name);
if (cb != null)
{
cb.SelectedItem = newValue;
}
}
else if ((valuesArray = findMinMaxArray(field.Name)) != null)
{
// In this case the integer value is constrained by min and max, and the
// control is a TextBox.
if ((int)newValue < valuesArray[0] || (int)newValue > valuesArray[1])
{
newValue = findDefaultValue(field.Name);
field.SetValue(null, newValue);
}
TextBox tb = findTextBox(field.Name);
if (tb != null)
{
tb.Text = newValue.ToString();
}
}
}
}
/// <summary>
/// Save compressor settings from the form back into the static properties and persist to the registry.
/// </summary>
protected override void SaveSettings()
{
// Compressor format
OpusAudioCompressor.Frequency = (int)((CompressorFmt)this.cbCompressionFormat.SelectedItem).WFEX.SamplesPerSec;
OpusAudioCompressor.Channels = (int)((CompressorFmt)this.cbCompressionFormat.SelectedItem).WFEX.Channels;
Type compressorType = typeof(OpusAudioCompressor);
FieldInfo[] fields = compressorType.GetFields(BindingFlags.Public | BindingFlags.Static);
foreach (FieldInfo field in fields)
{
if (field.IsLiteral || field.IsInitOnly)
{
continue;
}
Type enumType;
int[] valuesArray;
bool validated = false;
int checkedValue = 0;
// Look for the enum type first
if ((enumType = findEnumType(field.Name)) != null)
{
object saveValue;
ComboBox cb = findComboBox(field.Name);
if (cb == null)
{
continue;
}
if (enumTryParse(enumType, cb.SelectedValue.ToString(), out saveValue))
{
checkedValue = (int)saveValue;
validated = true;
}
}
else if ((valuesArray = findValuesArray(field.Name)) != null)
{
// Use a int[] of legal values
int uncheckedValue = (int)field.GetValue(null);
ComboBox cb = findComboBox(field.Name);
if ((cb == null) ||
((cb != null) && (int.TryParse(cb.SelectedValue.ToString(), out uncheckedValue))))
{
foreach (int j in valuesArray)
{
if (uncheckedValue == j)
{
checkedValue = uncheckedValue;
validated = true;
break;
}
}
}
}
else if ((valuesArray = findMinMaxArray(field.Name)) != null)
{
// Use a int[] with min/max values.
TextBox tb = findTextBox(field.Name);
if (tb == null)
{
continue;
}
if (int.TryParse(tb.Text, out checkedValue))
{
if (checkedValue >= valuesArray[0] && checkedValue <= valuesArray[1])
{
validated = true;
}
}
}
if (!validated)
{
checkedValue = (int)findDefaultValue(field.Name);
}
field.SetValue(null, checkedValue);
AVReg.WriteValue(AVReg.OpusCompressorKey, field.Name, checkedValue);
}
}
