public void RenderWmvWithImageWatermark()
{
string outputFile = "RenderWmvWithImageWatermark.wmv";
using (Image waterMarkImage = Image.FromFile("..\\..\\corner_watermark.png"))
using (ITimeline timeline = new DefaultTimeline())
{
IGroup videoGroup = timeline.AddVideoGroup(32, 320, 240);
ITrack videoTrack = videoGroup.AddTrack();
IClip videoClip =
videoTrack.AddClip("..\\..\\transitions.wmv", GroupMediaType.Video, InsertPosition.Absolute, 0, 0, 2);
IGroup audioGroup = timeline.AddAudioGroup();
ITrack audioTrack = audioGroup.AddTrack();
audioTrack.AddClip("..\\..\\testinput.mp3", GroupMediaType.Audio, InsertPosition.Absolute, 0, 0, 2);
ICallbackParticipant[] videoParticipants =
new ICallbackParticipant[]
{ new ImageWatermarkParticipant(32, 320, 240, true, waterMarkImage, new Point(200, 0)) };
using (
WindowsMediaRenderer renderer =
new WindowsMediaRenderer(timeline, outputFile, WindowsMediaProfiles.HighQualityVideo,
videoParticipants, null))
{
renderer.Render();
}
}
}
private void RenderToNullRenderer(ICallbackParticipant[] audioParticipants,
ICallbackParticipant[] videoParticipants)
{
int hr;
var graphBuilder = (ICaptureGraphBuilder2) new CaptureGraphBuilder2();
try
{
hr = graphBuilder.SetFiltergraph(Graph);
DESError.ThrowExceptionForHR(hr);
IBaseFilter audioDest = StandardFilters.RenderNull(Cleanup, Graph);
IBaseFilter videoDest = StandardFilters.RenderNull(Cleanup, Graph);
try
{
RenderGroups(graphBuilder, null, null, audioDest, videoDest, audioParticipants, videoParticipants);
}
finally
{
if (audioDest != null) Marshal.ReleaseComObject(audioDest);
if (videoDest != null) Marshal.ReleaseComObject(videoDest);
}
DisableClock();
}
finally
{
Marshal.ReleaseComObject(graphBuilder);
}
}
public void RenderWmvWithSampleTimeWatermark()
{
string outputFile = "RenderWmvWithSampleTimeWatermark.wmv";
using (ITimeline timeline = new DefaultTimeline())
{
IGroup videoGroup = timeline.AddVideoGroup(32, 320, 240);
ITrack videoTrack = videoGroup.AddTrack();
IClip videoClip =
videoTrack.AddClip("transitions.wmv", GroupMediaType.Video, InsertPosition.Absolute, 0, 0, 2);
IGroup audioGroup = timeline.AddAudioGroup();
ITrack audioTrack = audioGroup.AddTrack();
audioTrack.AddClip("testinput.mp3", GroupMediaType.Audio, InsertPosition.Absolute, 0, 0, 2);
ICallbackParticipant[] videoParticipants =
new ICallbackParticipant[] {new SampleTimeWatermarkParticipant(32, 320, 240, true)};
using (
WindowsMediaRenderer renderer =
new WindowsMediaRenderer(timeline, outputFile, WindowsMediaProfiles.HighQualityVideo,
videoParticipants, null))
{
renderer.Render();
}
}
}
public WavFileRenderer(ITimeline timeline, string outputFile, IBaseFilter audioCompressor, AMMediaType mediaType,
ICallbackParticipant[] audioParticipants)
: base(timeline)
{
RenderToWavDest(outputFile, audioCompressor, mediaType, audioParticipants);
ChangeState(RendererState.Initialized);
}
public NullRenderer(ITimeline timeline, ICallbackParticipant[] audioParticipants,
ICallbackParticipant[] videoParticipants)
: base(timeline)
{
RenderToNullRenderer(audioParticipants, videoParticipants);
ChangeState(RendererState.Initialized);
}
public AviFileRenderer(ITimeline timeline, string outputFile, IBaseFilter videoCompressor,
IBaseFilter audioCompressor, ICallbackParticipant[] videoParticipants,
ICallbackParticipant[] audioParticipants)
: base(timeline)
{
RenderToAVI(outputFile, videoCompressor, audioCompressor, videoParticipants, audioParticipants);
ChangeState(RendererState.Initialized);
}
private void RenderToWavDest(
string outputFile,
IBaseFilter audioCompressor,
AMMediaType mediaType,
ICallbackParticipant[] audioParticipants)
{
if (audioCompressor != null) Cleanup.Add(audioCompressor);
int hr;
if (FirstAudioGroup == null)
{
throw new SplicerException(Resources.ErrorNoAudioStreamToRender);
}
if (outputFile == null)
{
throw new SplicerException(Resources.ErrorInvalidOutputFileName);
}
// Contains useful routines for creating the graph
var graphBuilder = (ICaptureGraphBuilder2) new CaptureGraphBuilder2();
Cleanup.Add(graphBuilder);
try
{
hr = graphBuilder.SetFiltergraph(Graph);
DESError.ThrowExceptionForHR(hr);
IBaseFilter wavDestFilter = StandardFilters.RenderWavDestination(Cleanup, Graph);
IBaseFilter fileSink = StandardFilters.RenderFileDestination(Cleanup, Graph, outputFile);
try
{
RenderGroups(graphBuilder, audioCompressor, null, wavDestFilter, audioParticipants, null);
FilterGraphTools.ConnectFilters(Graph, wavDestFilter, fileSink, true);
// if supplied, apply the media type to the filter
if (mediaType != null)
{
FilterGraphTools.SetFilterFormat(mediaType, audioCompressor);
}
DisableClock();
}
finally
{
if (wavDestFilter != null) Marshal.ReleaseComObject(wavDestFilter);
if (fileSink != null) Marshal.ReleaseComObject(fileSink);
}
}
finally
{
Marshal.ReleaseComObject(graphBuilder);
}
}
public WindowsMediaRenderer(ITimeline timeline, string file, string profileData,
ICallbackParticipant[] videoParticipants,
ICallbackParticipant[] audioParticipants)
: base(timeline)
{
RenderToAsfWriter(file, profileData, videoParticipants, audioParticipants);
ChangeState(RendererState.Initialized);
}
private void RenderToAsfWriter(
string file,
string profileData,
ICallbackParticipant[] videoParticipants,
ICallbackParticipant[] audioParticipants)
{
int hr;
if (file == null)
{
throw new SplicerException(Resources.ErrorInvalidOutputFileName);
}
// Contains useful routines for creating the graph
var graphBuilder = (ICaptureGraphBuilder2) new CaptureGraphBuilder2();
try
{
hr = graphBuilder.SetFiltergraph(Graph);
DESError.ThrowExceptionForHR(hr);
IBaseFilter pMux = StandardFilters.RenderAsfWriterWithProfile(Cleanup, Graph, profileData, file);
ValidateAsfWriterIsSuitable(pMux);
Cleanup.Add(pMux);
try
{
RenderGroups(graphBuilder, null, null, pMux, audioParticipants, videoParticipants);
}
finally
{
Marshal.ReleaseComObject(pMux);
}
DisableClock();
}
catch (Exception ex)
{
throw;
}
finally
{
Marshal.ReleaseComObject(graphBuilder);
}
}
/// <summary>
/// Renders to AVI.
/// </summary>
/// <param name="outputFile">The output file.</param>
/// <param name="videoCompressor">The video compressor.</param>
/// <param name="audioCompressor">The audio compressor.</param>
/// <param name="videoParticipants">The video participants.</param>
/// <param name="audioParticipants">The audio participants.</param>
private void RenderToAVI(
string outputFile,
IBaseFilter videoCompressor,
IBaseFilter audioCompressor,
ICallbackParticipant[] videoParticipants,
ICallbackParticipant[] audioParticipants)
{
if (string.IsNullOrEmpty(outputFile)) throw new ArgumentNullException("outputFile");
if (FirstVideoGroup == null)
throw new SplicerException(Resources.ErrorCanNotRenderAviWhenNoVideoGroupExists);
int hr;
if (outputFile == null)
{
throw new SplicerException(Resources.ErrorInvalidOutputFileName);
}
// Contains useful routines for creating the graph
var graphBuilder = (ICaptureGraphBuilder2) new CaptureGraphBuilder2();
try
{
hr = graphBuilder.SetFiltergraph(Graph);
DESError.ThrowExceptionForHR(hr);
// Create the file writer
IBaseFilter multiplexer = StandardFilters.RenderAviDestination(Cleanup, graphBuilder, outputFile);
try
{
RenderGroups(graphBuilder, audioCompressor, videoCompressor, multiplexer, audioParticipants,
videoParticipants);
}
finally
{
Marshal.ReleaseComObject(multiplexer);
}
DisableClock();
}
finally
{
Marshal.ReleaseComObject(graphBuilder);
}
}
public WavFileRenderer(ITimeline timeline, string outputFile, AudioFormat format,
ICallbackParticipant[] audioParticipants)
: base(timeline)
{
AudioCompressor compressor = null;
try
{
compressor = AudioCompressorFactory.Create(format);
Cleanup.Add(compressor.Filter);
RenderToWavDest(outputFile, compressor.Filter, compressor.MediaType, audioParticipants);
ChangeState(RendererState.Initialized);
}
finally
{
if ((compressor != null) && (compressor.MediaType != null))
{
DsUtils.FreeAMMediaType(compressor.MediaType);
}
}
}
/// <summary>
/// Configure the graph to output the results to a video window.
/// </summary>
/// <remarks>
/// The callback routines are invoked once for each sample. This allows for additional processing to
/// be performed on the video or audio buffers.
/// </remarks>
/// <param name="windowHandle">Window handle to render to, or IntPtr.Zero to render to its own window</param>
/// <param name="videoParticipants">Callback routine to be called for each video frame or null for no callback</param>
/// <param name="audioParticipants">Callback routine to be called for each audio frame or null for no callback</param>
private void RenderToWindow(IntPtr windowHandle, ICallbackParticipant[] videoParticipants,
ICallbackParticipant[] audioParticipants)
{
int hr;
IPin pin;
IVideoWindow videoWindow;
IAMTimelineObj group;
IAMTimeline desTimeline = Timeline.DesTimeline;
// Contains useful routines for creating the graph
var graphBuilder = (ICaptureGraphBuilder2) new CaptureGraphBuilder2();
try
{
hr = graphBuilder.SetFiltergraph(Graph);
DESError.ThrowExceptionForHR(hr);
int NumGroups;
hr = desTimeline.GetGroupCount(out NumGroups);
DESError.ThrowExceptionForHR(hr);
// Walk the groups. For DESCombine, there is one group that
// contains all the video, and a second group for the audio.
for (int i = 0; i < NumGroups; i++)
{
hr = desTimeline.GetGroup(out group, i);
DESError.ThrowExceptionForHR(hr);
try
{
// Inform the graph we will be previewing (rather than writing to disk)
var pTLGroup = (IAMTimelineGroup) group;
hr = pTLGroup.SetPreviewMode(true);
DESError.ThrowExceptionForHR(hr);
}
finally
{
// Release the group
Marshal.ReleaseComObject(group);
}
// Get the IPin for the current group
hr = RenderEngine.GetGroupOutputPin(i, out pin);
DESError.ThrowExceptionForHR(hr);
try
{
// If this is the video pin
if (FilterGraphTools.IsVideo(pin))
{
// Get a video renderer
var ibfVideoRenderer = (IBaseFilter) new VideoRenderer();
try
{
// Create a sample grabber, add it to the graph and connect it all up
var mcb =
new CallbackHandler(videoParticipants);
RenderWindowHelper(graphBuilder, mcb, "Video", pin, ibfVideoRenderer);
}
finally
{
Marshal.ReleaseComObject(ibfVideoRenderer);
}
}
else
{
// Get an audio renderer
var ibfAudioRenderer = (IBaseFilter) new AudioRender();
try
{
// Create a sample grabber, add it to the graph and connect it all up
var mcb =
new CallbackHandler(audioParticipants);
RenderWindowHelper(graphBuilder, mcb, "Audio", pin, ibfAudioRenderer);
}
finally
{
Marshal.ReleaseComObject(ibfAudioRenderer);
}
}
}
finally
{
Marshal.ReleaseComObject(pin);
}
}
// Configure the video window
videoWindow = (IVideoWindow) Graph;
// If a window handle was supplied, use it
if (windowHandle != IntPtr.Zero)
{
hr = videoWindow.put_Owner(windowHandle);
DESError.ThrowExceptionForHR(hr);
}
else
{
// Use our own window
hr = videoWindow.put_Caption(Resources.DefaultVideoRenderingWindowCaption);
DESError.ThrowExceptionForHR(hr);
// since no user interaction is allowed, remove
// system menu and maximize/minimize buttons
WindowStyle lStyle = 0;
hr = videoWindow.get_WindowStyle(out lStyle);
DESError.ThrowExceptionForHR(hr);
lStyle &= ~(WindowStyle.MinimizeBox | WindowStyle.MaximizeBox | WindowStyle.SysMenu);
hr = videoWindow.put_WindowStyle(lStyle);
DESError.ThrowExceptionForHR(hr);
}
}
finally
{
Marshal.ReleaseComObject(graphBuilder);
}
}
public WindowRenderer(ITimeline timeline, IntPtr windowHandle, ICallbackParticipant[] videoParticipants,
ICallbackParticipant[] audioParticipants)
: base(timeline)
{
RenderToWindow(windowHandle, videoParticipants, audioParticipants);
}
protected void RenderGroups(ICaptureGraphBuilder2 graphBuilder, IBaseFilter audioCompressor,
IBaseFilter videoCompressor,
IBaseFilter audioDestination, IBaseFilter videoDestination,
ICallbackParticipant[] audioParticipants,
ICallbackParticipant[] videoParticipants)
{
int hr = 0;
if (audioCompressor != null) _cleanup.Add(audioCompressor);
if (videoCompressor != null) _cleanup.Add(videoCompressor);
if (audioDestination != null) _cleanup.Add(audioDestination);
if ((videoDestination != null) && (audioDestination != videoDestination)) _cleanup.Add(videoDestination);
IAMTimeline desTimeline = _timeline.DesTimeline;
int groupCount;
hr = desTimeline.GetGroupCount(out groupCount);
DESError.ThrowExceptionForHR(hr);
// Walk the groups. For this class, there is one group that
// contains all the video, and a second group for the audio.
for (int i = (groupCount - 1); i >= 0; i--)
{
IAMTimelineObj group;
hr = desTimeline.GetGroup(out group, i);
DESError.ThrowExceptionForHR(hr);
try
{
// Inform the graph we will be writing to disk (rather than previewing)
var timelineGroup = (IAMTimelineGroup) group;
hr = timelineGroup.SetPreviewMode(false);
DESError.ThrowExceptionForHR(hr);
}
finally
{
Marshal.ReleaseComObject(group);
}
IPin pPin;
// Get the IPin for the current group
hr = _renderEngine.GetGroupOutputPin(i, out pPin);
_cleanup.Add(pPin);
DESError.ThrowExceptionForHR(hr);
try
{
if (FilterGraphTools.IsVideo(pPin))
{
// Create a sample grabber, add it to the graph and connect it all up
var mcb =
new CallbackHandler(videoParticipants);
RenderHelper(graphBuilder, mcb, "Video", pPin, videoCompressor, videoDestination);
}
else
{
// Create a sample grabber, add it to the graph and connect it all up
var mcb =
new CallbackHandler(audioParticipants);
RenderHelper(graphBuilder, mcb, "Audio", pPin, audioCompressor, audioDestination);
}
}
finally
{
Marshal.ReleaseComObject(pPin);
}
}
}
protected void RenderGroups(ICaptureGraphBuilder2 graphBuilder, IBaseFilter audioCompressor,
IBaseFilter videoCompressor,
IBaseFilter multiplexer, ICallbackParticipant[] audioParticipants,
ICallbackParticipant[] videoParticipants)
{
RenderGroups(graphBuilder, audioCompressor, videoCompressor, multiplexer, multiplexer, audioParticipants,
videoParticipants);
}
