private static bool GetTrackMute(IMAudioTrack pMAudioTrack, int channel)
{
int nMute = 0;
pMAudioTrack.TrackMuteGet(channel, out nMute);
return(nMute == 1);
}
private static double GetTrackGain(IMAudioTrack pMAudioTrack, int channel)
{
double dblGain = 0;
pMAudioTrack.TrackGainGet(channel, out dblGain);
return(dblGain);
}
private static int GetTrackOutputChannels(IMAudioTrack pMAudioTrack)
{
int nChIn, nChOut, nChOutIdx;
pMAudioTrack.TrackChannelsGet(out nChIn, out nChOutIdx, out nChOut);
return(nChOut);
}
private IMAudioTrack GetAudioTrackByIndex(int index)
{
string strTrack;
IMAudioTrack pMAudioTrack = null;
m_pMAudio.AudioTrackGetByIndex(index, out strTrack, out pMAudioTrack);
return(pMAudioTrack);
}
private static eMAudioTrackMode GetTrackMode(IMAudioTrack pMAudioTrack)
{
int nAdd;
double dblAddGain;
eMAudioTrackMode eMode;
pMAudioTrack.TrackModeGet(out eMode, out nAdd, out dblAddGain);
return(eMode);
}
private void UpdateControl(int trackIndex)
{
if (m_pMAudio != null)
{
//if (m_pMAudioTrack != null)
//{
// Marshal.ReleaseComObject(m_pMAudioTrack);
// m_pMAudioTrack = null;
//}
try
{
m_pMAudioTrack = GetAudioTrackByIndex(trackIndex);
// Get number of channels
int nChOut = GetTrackOutputChannels(m_pMAudioTrack);
// Update track mode
eMAudioTrackMode eMode = GetTrackMode(m_pMAudioTrack);
var modeText = eMode.ToString().Substring(5);
for (int i = 0; i < comboBoxMode.Items.Count; i++)
{
if (object.Equals(modeText, comboBoxMode.Items[i]))
{
comboBoxMode.SelectedIndex = i;
break;
}
}
// if track disabled -> 0 real track channels
// TODO: Exclusive modes
if (eMode == eMAudioTrackMode.eMAT_Disabled || eMode == eMAudioTrackMode.eMAT_Disabled_AddTo)
{
nChOut = 0;
}
channelPanel.Children.Clear();
for (int i = 0; i < nChOut; i++)
{
var channelControl = CreateChannelControl(i);
channelPanel.Children.Add(channelControl);
}
m_nCurrentTrack = trackIndex;
this.InvalidateVisual();
}
catch (System.Exception ex)
{
}
}
}
private void SetAudioGain(MItemClass mItem, int gain)
{
string empty = string.Empty;
IMAudioTrack iMAudioTrack = null;
mItem.AudioTrackGetByIndex(0, out empty, out iMAudioTrack);
if (iMAudioTrack != null)
{
iMAudioTrack.TrackGainSet(-1, (double)gain, 0.1);
}
}
private void SetAudioGain(MItemClass mItem, int gain)
{
int audioTracks = -1;
((MItemClass)mItem).AudioTracksGetCount(out audioTracks);
if (audioTracks > 0)
{
string empty = string.Empty;
IMAudioTrack iMAudioTrack = null;
mItem.AudioTrackGetByIndex(0, out empty, out iMAudioTrack);
if (iMAudioTrack != null)
{
iMAudioTrack.TrackGainSet(-1, (double)gain, 0.1);
}
}
}
private static void GetTrackLoudness(IMAudioTrack pMAudioTrack, out M_AUDIO_TRACK_LOUDNESS loudOrg, out M_AUDIO_TRACK_LOUDNESS loudOut)
{
pMAudioTrack.TrackLoudnessGet(out loudOrg, out loudOut);
}
private static void SetTrackMute(IMAudioTrack pMAudioTrack, int nChannel, bool mute)
{
pMAudioTrack.TrackMuteSet(nChannel, mute ? 1 : 0, 0.1);
}
private static void SetTrackGain(IMAudioTrack pMAudioTrack, int nChannel, double gain)
{
pMAudioTrack.TrackGainSet(nChannel, gain, 0.1);
}
