public AudioCapability(FilterInfo fi)
: base(fi)
{
AutoPlayLocal = false; // Don't usually want to play your own audio (can create loopback)
RtpStream.FirstFrameReceived += new RtpStream.FirstFrameReceivedEventHandler(RtpStream_FirstFrameReceived);
}
public frmAudioSettings(FilterInfo fi, frmAVDevices frmAV)
{
InitializeComponent();
Debug.Assert(frmAV != null);
this.frmAV = frmAV;
this.sourceFilter = fi;
ac = new AudioCapability(fi);
ac.SetLogger(new AVLogger(Log));
ac.ActivateMicrophone();
}
protected CaptureGraph(FilterInfo fiSource)
{
try
{
// Fgm initialization
fgm = new FilgraphManagerClass();
iFG = (IFilterGraph)fgm;
iGB = (IGraphBuilder)fgm;
rotID = FilterGraph.AddToRot(iGB);
// Create source filter and initialize it
source = (SourceFilter)Filter.CreateFilter(fiSource);
iGB.AddFilter(source.BaseFilter, source.FriendlyName);
source.AddedToGraph(fgm);
}
catch(Exception)
{
Cleanup();
throw;
}
}
public CapabilityDeviceWithWindow(FilterInfo fi) : base(fi) {}
public virtual void AddCompressor(FilterInfo fiCompressor)
{
RemoveCompressor();
compressor = (Compressor)Filter.CreateFilter(fiCompressor);
iGB.AddFilter(compressor.BaseFilter, compressor.FriendlyName);
compressor.AddedToGraph(fgm); // Chooses input pin
Dictionary<string, Object> args = new Dictionary<string, object>();
args.Add("SourceFilter", source);
compressor.PreConnectConfig(args);
try
{
iGB.Connect(source.OutputPin, compressor.InputPin);
}
catch(COMException)
{
RemoveCompressor();
throw;
}
}
/// <summary>
/// These graphs can be shared by audio and video capabilites. We only create one instance per source filter.
/// Application code should normally call this instead of using the constructor. A side effect of calling
/// on a running graph is that the graph will be stopped. It is the caller's responsibility to call Run if needed.
/// </summary>
/// <param name="fi"></param>
/// <returns></returns>
public static DVCaptureGraph GetInstance(FilterInfo fi)
{
if (!instances.ContainsKey(fi)) {
instances.Add(fi, new DVCaptureGraph(fi));
}
else {
instances[fi].Stop();
instances[fi].RefCount++;
}
return instances[fi];
}
public Compressor(FilterInfo fi) : base(fi){}
public virtual void AddAudioRenderer(FilterInfo fiRenderer)
{
RemoveRenderer();
renderer = (Renderer)Filter.CreateFilter(fiRenderer);
iGB.AddFilter(renderer.BaseFilter, renderer.FriendlyName);
renderer.AddedToGraph(fgm); // Chooses input pin
IPin pin = compressor == null ? source.OutputPin : compressor.OutputPin;
try
{
iGB.Connect(pin, renderer.InputPin);
}
catch(COMException)
{
RemoveRenderer();
throw;
}
}
public AudioCaptureGraph(FilterInfo fiSource)
: base(fiSource)
{
}
public NetworkRenderer(FilterInfo fi) : base(fi){}
public Filter(FilterInfo fi)
{
this.fi = fi;
filter = InstantiateFilter();
}
public Renderer(FilterInfo fi) : base(fi){}
public AudioRenderer(FilterInfo fi) : base(fi)
{
if(fi.Category != AudioRenderer.CategoryGuid)
{
Debug.Assert(false);
throw new ArgumentOutOfRangeException("fi.Category", fi.Category, Strings.UnexpectedFilterCategory);
}
}
public static FilterInfo[] EnumerateFilters(Guid filterCategory)
{
ArrayList filters = new ArrayList();
IEnumMoniker iEnum;
ICreateDevEnum iDE = CreateDeviceEnumClass.CreateInstance();
iDE.CreateClassEnumerator(ref filterCategory, out iEnum, 0);
if (iEnum != null)
{
IMoniker iMon;
uint fetched;
// To enter loop
iEnum.RemoteNext(1, out iMon, out fetched);
while(fetched == 1)
{
string monikerName;
iMon.GetDisplayName(null, null, out monikerName);
object oPropertyBag;
iMon.RemoteBindToStorage(null ,null, ref IID_IPropertyBag, out oPropertyBag);
IPropertyBag iPB = (IPropertyBag)oPropertyBag;
try {
object oFriendlyName;
iPB.RemoteRead("FriendlyName", out oFriendlyName, null, 0, null);
filters.Add(new FilterInfo(monikerName, ((string)oFriendlyName).Trim(), filterCategory));
}
catch {
}
iEnum.RemoteNext(1, out iMon, out fetched);
}
}
// Strongly type the data
FilterInfo[] ret = new FilterInfo[filters.Count];
filters.CopyTo(ret);
return ret;
}
public VideoCompressor(FilterInfo fi) : base(fi)
{
if(fi.Category != VideoCompressor.CategoryGuid)
{
Debug.Assert(false);
throw new ArgumentOutOfRangeException("fi.Category", fi.Category, Strings.UnexpectedFilterCategory);
}
}
public static Filter CreateFilter(FilterInfo fi)
{
// Capture devices
if(fi.Category == AudioSource.CategoryGuid)
return new AudioSource(fi);
if (fi.Category == VideoSource.CategoryGuid) {
//A special case for DV with audio
if (DVSource.IsDVSourceWithAudio(fi)) {
return new DVSource(fi);
}
//Special case for BlackMagic hardware
if (fi.Name == "Decklink Video Capture") {
return new BlackMagicSource(fi);
}
return new VideoSource(fi);
}
// Compressors
if (fi.Category == AudioCompressor.CategoryGuid) {
if (fi.Name == "Opus Encoder") {
return new OpusAudioCompressor(fi);
}
return new AudioCompressor(fi);
}
if(fi.Category == VideoCompressor.CategoryGuid)
return new VideoCompressor(fi);
// Renderers
if(fi.Category == AudioRenderer.CategoryGuid)
return new AudioRenderer(fi);
throw new Exception(string.Format(CultureInfo.CurrentCulture, Strings.UnknownFilterCategory,
fi.Category.ToString()));
}
public CapabilityDevice(FilterInfo fi) : base()
{
this.fi = fi;
name = Conference.LocalParticipant.Name + " - " + fi.DisplayName;
}
/// <summary>
/// Makes sure each FilterInfo.DisplayName is unique
/// by adding a number onto the end of duplicates
/// </summary>
public static FilterInfo[] UniquifyDisplayNames(FilterInfo[] fis)
{
// The last one would have nothing to compare against
for(int i = 0; i < fis.Length - 1; i++)
{
// The uniquifying number
int id = 0;
// No need to compare against yourself or anyone before you
for(int j = i + 1; j < fis.Length; j++)
{
if(fis[i].DisplayName == fis[j].DisplayName)
{
fis[j].DisplayName = string.Format(CultureInfo.CurrentCulture, "{0} [{1}]", fis[j].DisplayName, ++id);
}
}
}
return fis;
}
public VideoCaptureGraph(FilterInfo fiSource)
: base(fiSource)
{
}
public SourceFilter(FilterInfo fi) : base(fi){}
public virtual void AddCompressor(FilterInfo fiCompressor)
{
RemoveCompressor();
compressor = (Compressor)Filter.CreateFilter(fiCompressor);
iGB.AddFilter(compressor.BaseFilter, compressor.FriendlyName);
compressor.AddedToGraph(fgm); // Chooses input pin
try
{
iGB.Connect(source.OutputPin, compressor.InputPin);
}
catch(COMException)
{
RemoveCompressor();
throw;
}
}
/// <summary>
/// The compressor could be audio or video. If there is already an existing compressor of the
/// given type, remove it and any downstream filters before adding the given compressor.
/// The graph my not yet contain a DV Splitter, in which case, add the splitter first.
/// </summary>
/// <param name="fiCompressor"></param>
public override void AddCompressor(FilterInfo fiCompressor)
{
Stop();
if (!AddDVSplitter()) {
throw new ApplicationException("Failed to add DV Splitter Filter");
}
if (fiCompressor.Category.Equals(Filter.CLSID_AudioCompressorCategory)) {
if (audioCompressor != null) {
RemoveFiltersDownstreamFromPin(splitterAudioOut);
RemoveAndDispose(audioCompressor);
audioCompressor = null;
}
audioCompressor = (Compressor)Filter.CreateFilter(fiCompressor);
iGB.AddFilter(audioCompressor.BaseFilter, audioCompressor.FriendlyName);
audioCompressor.AddedToGraph(fgm);
compressor = audioCompressor;
_AMMediaType[] mts = Pin.GetMediaTypes(splitterAudioOut);
//Returns one DVInfo mt.
foreach (_AMMediaType mt in mts) {
Debug.WriteLine(MediaType.Dump(mt));
}
try {
iGB.Connect(this.splitterAudioOut, audioCompressor.InputPin);
}
catch (COMException) {
RemoveAndDispose(audioCompressor);
audioCompressor = null;
throw;
}
}
else if (fiCompressor.Category.Equals(Filter.CLSID_VideoCompressorCategory)) {
if (videoCompressor != null) {
RemoveFiltersDownstreamFromPin(splitterVideoOut);
RemoveAndDispose(videoCompressor);
videoCompressor = null;
}
videoCompressor = (Compressor)Filter.CreateFilter(fiCompressor);
iGB.AddFilter(videoCompressor.BaseFilter, videoCompressor.FriendlyName);
videoCompressor.AddedToGraph(fgm);
compressor = videoCompressor;
try {
iGB.Connect(this.splitterVideoOut, videoCompressor.InputPin);
}
catch (COMException) {
RemoveAndDispose(videoCompressor);
videoCompressor = null;
throw;
}
}
}
public DVCaptureGraph(FilterInfo fiSource)
: base(fiSource)
{
myFilterInfo = fiSource;
RefCount = 1;
}
public frmAudioSettingsOpus(FilterInfo fi, frmAVDevices frmAV): base(fi, frmAV) {
InitializeComponent();
}
/// <summary>
/// Finish building the Graph for local DV audio playback. If there is already an audio compressor, just
/// add the renderer, and connect. Otherwise add and connect the DV Splitter and the renderer.
/// </summary>
/// <param name="fiRenderer"></param>
public override void AddAudioRenderer(FilterInfo fiRenderer)
{
RemoveAndDispose(audioRenderer);
//Add selected renderer
audioRenderer = (Renderer)Filter.CreateFilter(fiRenderer);
iGB.AddFilter(audioRenderer.BaseFilter, audioRenderer.FriendlyName);
audioRenderer.AddedToGraph(fgm);
if (!AddDVSplitter()) {
RemoveAndDispose(audioRenderer);
throw new ApplicationException("Failed to add DV Splitter Filter");
}
IPin pin = audioCompressor == null ? splitterAudioOut : audioCompressor.OutputPin;
//Connect
try {
iGB.Connect(pin, audioRenderer.InputPin);
}
catch (COMException) {
RemoveAndDispose(audioRenderer);
throw;
}
renderer = audioRenderer;
}
public NetworkSource(FilterInfo fi) : base(fi){}
protected CaptureGraph(FilterInfo fiSource)
{
try
{
// Fgm initialization
fgm = new FilgraphManagerClass();
iFG = (IFilterGraph)fgm;
iGB = (IGraphBuilder)fgm;
rotID = FilterGraph.AddToRot(iGB);
// Create source filter and initialize it
source = (SourceFilter)Filter.CreateFilter(fiSource);
iGB.AddFilter(source.BaseFilter, source.FriendlyName);
source.AddedToGraph(fgm);
// Pass flags to the RtpRenderer filter from the config file.
this.rtpRendererFlags = 0;
string setting = ConfigurationManager.AppSettings[AppConfig.MDS_RtpRendererFlags];
if (!String.IsNullOrEmpty(setting)) {
if (!byte.TryParse(setting,out rtpRendererFlags)) {
rtpRendererFlags = 0;
}
}
}
catch(Exception)
{
Cleanup();
throw;
}
}
/// <summary>
/// Creates the actual FilgraphManager with the chosen microphone
/// </summary>
private void CreateAudioGraph(FilterInfo fi)
{
Debug.Assert(acg == null);
// Create the graph, which creates the source filter
cg = new AudioCaptureGraph(fi);
Log(acg.AudioSource.Dump());
}
public BlackMagicSource(FilterInfo fi)
: base(fi)
{
}
/// <summary>
/// Creates the actual FilgraphManager with the chosen microphone
/// </summary>
private void CreateAudioGraph(FilterInfo fi)
{
Debug.Assert(cg == null);
if (DVSource.IsDVSourceWithAudio(fi)) {
cg = DVCaptureGraph.GetInstance(fi);
Log(((DVCaptureGraph)cg).DVSource.Dump());
}
else {
// Create the graph, which creates the source filter
cg = new AudioCaptureGraph(fi);
Log(((AudioCaptureGraph)cg).AudioSource.Dump());
}
}
