private void ConfigureCompressor()
{
// Have the compressor use the same height and width settings as the device
// Because these are structs that access their members through properties
// some of the properties (like BitmapInfo) are copied, so we work on the
// copy and then restore it at the end
BITMAPINFOHEADER bmih = cVI.BitmapInfo;
bmih.Width = SystemInformation.PrimaryMonitorSize.Width;
bmih.Height = SystemInformation.PrimaryMonitorSize.Height;
bmih.Size = (uint)Marshal.SizeOf(typeof(BITMAPINFOHEADER));
bmih.Planes = 1;
cVI.BitmapInfo = bmih;
// Configure the bit rate
cVI.BitRate = (uint)(hsbBitRate.Value * 1024); // Change to kilobits
// Update the structure in memory
Marshal.StructureToPtr(cVI, cMT.pbFormat, false);
// Allow compressor specific configuration
// e.g. WM9+ requires extra configuration, others may as well
ConfigureWMScreenEncoder();
Console.WriteLine(MediaType.Dump(cMT));
// Use the structure in the compressor
IAMStreamConfig iSC = (IAMStreamConfig)cOutputPin;
iSC.SetFormat(ref cMT);
IAMVideoCompression iVC = (IAMVideoCompression)cOutputPin;
}
private void InitializeCompressorMediaType()
{
ArrayList mts = new ArrayList();
ArrayList ihs = new ArrayList();
ArrayList sccs = new ArrayList();
Pin.GetStreamConfigCaps((IAMStreamConfig)cOutputPin, out mts, out ihs, out sccs);
for (int i = 0; i < mts.Count; i++)
{
Console.WriteLine(MediaType.Dump((_AMMediaType)mts[i]));
Console.WriteLine(Pin.DebugStreamConfigCaps(sccs[i]));
}
// There's only one
cMT = (_AMMediaType)mts[0];
cMT.formattype = MediaType.FormatType.FORMAT_VideoInfo;
// MediaTypes are local to method, so free them all
// then reallocate just the one we want
for (int i = 0; i < mts.Count; i++)
{
_AMMediaType mt = (_AMMediaType)mts[i];
MediaType.Free(ref mt);
}
cMT.cbFormat = (uint)Marshal.SizeOf(cVI);
cMT.pbFormat = Marshal.AllocCoTaskMem((int)cMT.cbFormat);
}
/// <summary>
/// Show the uncompressed audio format form
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btnAudio_Click(object sender, System.EventArgs e)
{
try
{
// Show the form
frmAudioFormat af = new frmAudioFormat(ac.CaptureGraph);
if (af.ShowDialog(this) == DialogResult.OK)
{
if (ckTestAudio.Checked)
{
ckTestAudio.Checked = false;
}
// Get the media type they selected and set it
_AMMediaType mt;
object fb;
af.GetMediaType(out mt, out fb);
#region Log
Log("Setting media type to...");
Log(MediaType.Dump(mt) + MediaType.FormatType.Dump(fb));
#endregion Log
frmAV.RenderAndRunAudio(ac.CaptureGraph, false);
ac.CaptureGraph.RemoveFiltersDownstreamFromSource(MSR.LST.Net.Rtp.PayloadType.dynamicAudio);
try
{
ac.CaptureGraph.Source.SetMediaType(mt, fb);
}
catch (COMException ex)
{
Log(DShowError._AMGetErrorText(ex.ErrorCode));
Log(ex.ToString());
}
catch (Exception ex)
{
Log(ex.ToString());
}
ac.SaveAudioSettings();
ac.AddAudioCompressor();
frmAV.RenderAndRunAudio(ac.CaptureGraph);
UpdateCurrentSettings();
}
}
catch (COMException ex)
{
Log(DShowError._AMGetErrorText(ex.ErrorCode));
Log(ex.ToString());
}
catch (Exception ex)
{
Log(ex.ToString());
}
}
protected void LogCurrentMediaType(Filter f)
{
if (f != null)
{
_AMMediaType mt;
object fb;
f.GetMediaType(out mt, out fb);
Log(string.Format(CultureInfo.CurrentCulture, "\r\nCurrent media type for {0}...",
f.FriendlyName) + MediaType.Dump(mt) + MediaType.FormatType.Dump(fb));
}
}
/// <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());
}
}
}
}
protected void LogCurrentMediaType(Filter f)
{
if (f != null)
{
_AMMediaType mt;
object fb;
if (f is MSR.LST.MDShow.OpusAudioCompressor)
{
//TODO: log something useful
}
else
{
try {
f.GetMediaType(out mt, out fb);
Log(string.Format(CultureInfo.CurrentCulture, "\r\nCurrent media type for {0}...",
f.FriendlyName) + MediaType.Dump(mt) + MediaType.FormatType.Dump(fb));
}
catch {
//TODO: log something useful
}
}
}
}
