/// <summary>
/// Configure the Opus encoder filter
/// after the encoder is in the graph and connected
/// to the source.
///
/// Warning: This might not work for a DVCaptureGraph.
/// </summary>
/// <param name="cg"></param>
/// <param name="j"></param>
public override void PostConnectConfig(Dictionary <string, Object> args)
{
CaptureGraph cg = args["CaptureGraph"] as CaptureGraph;
IAudioCaptureGraph iacg = cg as IAudioCaptureGraph;
_AMMediaType[] mts = Pin.GetMediaTypes(cg.Source.OutputPin);
bool mtSet = false;
foreach (_AMMediaType mt in mts)
{
WAVEFORMATEX wfex = (WAVEFORMATEX)MediaType.FormatType.MarshalData(mt);
if ((wfex.SamplesPerSec == Frequency) && (wfex.Channels == Channels) && (wfex.BitsPerSample == Depth))
{
cg.Source.SetMediaType(mt);
mtSet = true;
break;
}
}
if (!mtSet)
{
throw new ApplicationException("The audio device doesn't support the configured values of SamplesPerSec/Channels/BitsPerSample.");
}
IOpusEncoderCtl iOpus = (IOpusEncoderCtl)iacg.AudioCompressor.BaseFilter;
iOpus.SetSignal(Signal);
int br = BitRate;
if (br == 0)
{
br = ManualBitRate;
}
iOpus.SetBitRate(br);
iOpus.SetComplexity(Complexity);
iOpus.SetMaxBandwidth(MaxBandwidth);
iOpus.SetVbr(VBR);
iOpus.SetVbrConstraint(VBRConstraint);
iOpus.SetDtx(DTX);
iOpus.SetPacketLossPerc(PacketLossPerc);
iOpus.SetLsbDepth(LSBDepth);
iOpus.SetForcedChannels(ForcedChannels);
}
public frmAudioFormat(CaptureGraph cg)
{
InitializeComponent();
this.captureGraph = cg;
}
/// <summary>
/// Display statistics for the specified video capture graph. It might be a DV graph.
/// </summary>
/// <param name="vcg"></param>
internal void UpdateVideoBox(CaptureGraph vcg)
{
btnAdvancedVideoSettings.Enabled = true;
lblVideoInfo.Enabled = true;
ckPlayVideo.Enabled = true;
// Update video info about the camera
_AMMediaType mt;
object formatBlock;
vcg.Source.GetMediaType(out mt, out formatBlock);
string info = null;
if (formatBlock is VIDEOINFOHEADER) {
VIDEOINFOHEADER vih = (VIDEOINFOHEADER)formatBlock;
BITMAPINFOHEADER bmih = vih.BitmapInfo;
info = string.Format(CultureInfo.CurrentCulture, Strings.ResolutionStatus,
bmih.Width, bmih.Height, vih.FrameRate.ToString("F2", CultureInfo.InvariantCulture));
}
else if (formatBlock is DVINFO) {
info = "DV Video";
DVCaptureGraph dvcg = vcg as DVCaptureGraph;
if (dvcg != null) {
dvcg.GetVideoMediaType(out mt, out formatBlock);
if (formatBlock is VIDEOINFOHEADER) {
VIDEOINFOHEADER vih = (VIDEOINFOHEADER)formatBlock;
BITMAPINFOHEADER bmih = vih.BitmapInfo;
info = string.Format(CultureInfo.CurrentCulture, Strings.ResolutionStatus,
bmih.Width, bmih.Height, vih.FrameRate.ToString("F2", CultureInfo.InvariantCulture));
}
}
}
if(vcg.Compressor == null)
{
info += string.Format(CultureInfo.CurrentCulture, "\r\n" + Strings.CompressorDisabled);
}
else
{
if (vcg is VideoCaptureGraph) {
info += string.Format(CultureInfo.CurrentCulture, "\r\n" + Strings.CompressedBitRate,
((VideoCaptureGraph)vcg).VideoCompressor.QualityInfo.BitRate / 1000);
}
else if (vcg is DVCaptureGraph) {
if (((DVCaptureGraph)vcg).VideoCompressor == null) {
info += string.Format(CultureInfo.CurrentCulture, "\r\n" + Strings.CompressorDisabled);
}
else {
info += string.Format(CultureInfo.CurrentCulture, "\r\n" + Strings.CompressedBitRate,
((DVCaptureGraph)vcg).VideoCompressor.QualityInfo.BitRate / 1000);
}
}
}
lblVideoInfo.Text = info;
}
public void RenderAndRunVideo(CaptureGraph vcg, bool playIt)
{
if(playIt)
{
Log("Playing video (render and run graph) - " + vcg.Source.FriendlyName);
vcg.RenderLocal();
if (vcg is VideoCaptureGraph) {
// This is not working for DV graphs but doesn't seem critical in this context
VideoCapability.DisableDXVA(vcg.FilgraphManager);
}
// Set device name in the video window and turn off the system menu
IVideoWindow iVW = (IVideoWindow)vcg.FilgraphManager;
iVW.Caption = vcg.Source.FriendlyName;
iVW.WindowStyle &= ~0x00080000; // WS_SYSMENU
vcg.Run();
}
else
{
Log("Stop video (stop and unrender graph) - " + vcg.Source.FriendlyName);
vcg.Stop();
vcg.RemoveRenderer(MSR.LST.Net.Rtp.PayloadType.dynamicVideo);
// I have no idea why the video window stays up but this fixes it
GC.Collect();
}
Log(FilterGraph.Debug(vcg.IFilterGraph));
}
public void RenderAndRunVideo(CaptureGraph vcg)
{
RenderAndRunVideo(vcg, ckPlayVideo.Checked);
}
public void RenderAndRunAudio(CaptureGraph cg, bool playIt)
{
if(cg == null)
{
throw new ArgumentNullException(Strings.CantRenderAudioGraph);
}
if(playIt)
{
Log("Playing audio (render and run graph) - " + cg.Source.FriendlyName);
// Re-add the renderer in case they changed it since the last
// time they played the audio
cg.AddAudioRenderer((FilterInfo)cboSpeakers.SelectedItem);
cg.Run();
}
else
{
Log("Stop audio (stop and unrender graph) - " + cg.Source.FriendlyName);
cg.Stop();
cg.RemoveRenderer(MSR.LST.Net.Rtp.PayloadType.dynamicAudio);
}
Log(FilterGraph.Debug(cg.IFilterGraph));
}
public void RenderAndRunAudio(CaptureGraph cg)
{
RenderAndRunAudio(cg, ckPlayAudio.Checked);
}
