// The '1' indicates there should only be 1 processing thread.
// AudioDelayAsync doesn't support more than 1 thread.
public AudioDelayAsync()
: base(1)
{
Trace("AudioDelayAsync Constructor");
m_pbDelayBuffer = IntPtr.Zero;
m_cbDelayBuffer = 0;
m_pbDelayPtr = IntPtr.Zero;
m_dwDelay = DEFAULT_DELAY;
m_cbTailSamples = 0;
m_rtTimestamp = -1;
// Add some attributes to the MFTs attribute list.
IMFAttributes ia = Attributes;
MFError throwonhr;
throwonhr = ia.SetUINT32(MF_AUDIODELAY_WET_DRY_MIX, DEFAULT_WET_DRY_MIX);
throwonhr = ia.SetUINT32(MF_AUDIODELAY_DELAY_LENGTH, DEFAULT_DELAY);
m_Alignment = 0;
m_AvgBytesPerSec = 0;
m_SamplesPerSec = 0;
m_BitsPerSample = 0;
m_NumChannels = 0;
}
// Token: 0x06000942 RID: 2370 RVA: 0x0001AFC4 File Offset: 0x000191C4
private static IMFSinkWriter CreateSinkWriter(string outputFile)
{
IMFAttributes imfattributes = MediaFoundationApi.CreateAttributes(1);
imfattributes.SetUINT32(MediaFoundationAttributes.MF_READWRITE_ENABLE_HARDWARE_TRANSFORMS, 1);
IMFSinkWriter result;
try
{
MediaFoundationInterop.MFCreateSinkWriterFromURL(outputFile, null, imfattributes, out result);
}
catch (COMException exception)
{
if (exception.GetHResult() == -1072875819)
{
throw new ArgumentException("Was not able to create a sink writer for this file extension");
}
throw;
}
finally
{
Marshal.ReleaseComObject(imfattributes);
}
return(result);
}
private static IMFTranscodeProfile CreateProfile(AudioFormat audioOutput, VideoFormat videoOutput, Guid containerType)
{
IMFTranscodeProfile profile = null;
// Create a transcode profile
MFHelper.MFCreateTranscodeProfile(out profile);
// Create and set the audio attributes
profile.SetAudioAttributes(SimpleFastEncode.CreateAudioAttributes(audioOutput));
// Create and set the video attributes
profile.SetVideoAttributes(SimpleFastEncode.CreateVideoAttributes(videoOutput));
// Create the container attributes
IMFAttributes containerAttributes = null;
MFHelper.MFCreateAttributes(out containerAttributes, 2);
containerAttributes.SetUINT32(new Guid(Consts.MF_TRANSCODE_TOPOLOGYMODE), 1);
containerAttributes.SetGUID(new Guid(Consts.MF_TRANSCODE_CONTAINERTYPE), containerType);
// Set them in the transcoding profile
profile.SetContainerAttributes(containerAttributes);
return(profile);
}
private static IMFAttributes CreateVideoAttributes(VideoFormat videoOutput)
{
IMFAttributes videoAttributes = null;
MFHelper.MFCreateAttributes(out videoAttributes, 0);
videoAttributes.SetGUID(new Guid(Consts.MF_MT_SUBTYPE), videoOutput.Subtype);
PackedINT32 pixelAspectRatio = new PackedINT32(1, 1);
// Set the argument attributes
videoAttributes.SetUINT64(new Guid(Consts.MF_MT_FRAME_RATE), videoOutput.FrameRate.Packed);
videoAttributes.SetUINT64(new Guid(Consts.MF_MT_FRAME_SIZE), videoOutput.FrameSize.Packed);
videoAttributes.SetUINT64(new Guid(Consts.MF_MT_PIXEL_ASPECT_RATIO), pixelAspectRatio.Packed);
videoAttributes.SetUINT32(new Guid(Consts.MF_MT_INTERLACE_MODE), videoOutput.InterlaceMode);
videoAttributes.SetUINT32(new Guid(Consts.MF_MT_AVG_BITRATE), videoOutput.AvgBitRate);
return(videoAttributes);
}
/// <summary>
/// Associates a UInt32 value with a key.
/// </summary>
/// <param name="attributes">A valid IMFAttributes instance.</param>
/// <param name="guidKey">Guid that identifies the value to set.</param>
/// <param name="value">New value for this key.</param>
/// <returns>If this function succeeds, it returns the S_OK member. Otherwise, it returns another HResult's member that describe the error.</returns>
public static HResult SetUINT32(this IMFAttributes attributes, Guid guidKey, uint value)
{
if (attributes == null)
{
throw new ArgumentNullException("attributes");
}
return(attributes.SetUINT32(guidKey, unchecked ((int)value)));
}
protected void SetTargetStream(Stream stream, MFMediaType inputMediaType, MFMediaType targetMediaType, Guid containerType)
{
IMFAttributes attributes = null;
try
{
_targetStream = MediaFoundationCore.IStreamToByteStream(new ComStream(stream));
MFByteStreamCapsFlags flags = MFByteStreamCapsFlags.None;
int result = _targetStream.GetCapabilities(ref flags);
attributes = MediaFoundationCore.CreateEmptyAttributes(2);
attributes.SetUINT32(MediaFoundationAttributes.MF_READWRITE_ENABLE_HARDWARE_TRANSFORMS, 1);
attributes.SetGUID(MediaFoundationAttributes.MF_TRANSCODE_CONTAINERTYPE, containerType);
_sinkWriter = MediaFoundationCore.CreateSinkWriterFromMFByteStream(_targetStream, attributes);
_streamIndex = _sinkWriter.AddStream(targetMediaType);
_sinkWriter.SetInputMediaType(_streamIndex, inputMediaType, null);
_inputMediaType = inputMediaType;
_targetMediaType = targetMediaType;
_sourceBytesPerSecond = inputMediaType.AverageBytesPerSecond;
//initialize the sinkwriter
_sinkWriter.BeginWriting();
}
catch (Exception)
{
if (_sinkWriter != null)
{
_sinkWriter.Dispose();
_sinkWriter = null;
}
if (_targetStream != null)
{
_targetStream.Close();
Marshal.ReleaseComObject(_targetStream);
_targetStream = null;
}
throw;
}
finally
{
if (attributes != null)
{
Marshal.ReleaseComObject(attributes);
}
}
}
public void initialize(int streamId, IMFMediaType mediaType)
{
//process input.
ThrowIfError(MFExtern.MFGetAttributeSize(mediaType, MFAttributesClsid.MF_MT_FRAME_SIZE, out _videoWitdh, out _videoHeight));
ThrowIfError(MFExtern.MFGetAttributeRatio(mediaType, MFAttributesClsid.MF_MT_PIXEL_ASPECT_RATIO, out _videoRatioN, out _videoRatioD));
ThrowIfError(pDecoderTransform.SetInputType(streamId, mediaType, MFTSetTypeFlags.None));
//process output
IMFMediaType h264OutputType;
ThrowIfError(MFExtern.MFCreateMediaType(out h264OutputType));
ThrowIfError(h264OutputType.SetGUID(MF_MT_MAJOR_TYPE, MFMediaType.Video));
ThrowIfError(h264OutputType.SetGUID(MF_MT_SUBTYPE, MFMediaType.YUY2));
IMFAttributes attr = h264OutputType as IMFAttributes;
ThrowIfError(MFExtern.MFSetAttributeSize(attr, MF_MT_FRAME_SIZE, _videoWitdh, _videoHeight));
ThrowIfError(MFExtern.MFSetAttributeRatio(attr, MF_MT_FRAME_RATE, 30, 1));
ThrowIfError(MFExtern.MFSetAttributeRatio(attr, MF_MT_PIXEL_ASPECT_RATIO, _videoRatioN, _videoRatioD));
ThrowIfError(attr.SetUINT32(MF_MT_INTERLACE_MODE, 2));
ThrowIfError(pDecoderTransform.SetOutputType(streamId, h264OutputType, MFTSetTypeFlags.None));
MFTInputStatusFlags mftStatus;
ThrowIfError(pDecoderTransform.GetInputStatus(streamId, out mftStatus));
if (MFTInputStatusFlags.AcceptData != mftStatus)
{
throw new Exception("H.264 decoder MFT is not accepting data.\n");
}
ThrowIfError(pDecoderTransform.ProcessMessage(MFTMessageType.CommandFlush, IntPtr.Zero));
ThrowIfError(pDecoderTransform.ProcessMessage(MFTMessageType.NotifyBeginStreaming, IntPtr.Zero));
ThrowIfError(pDecoderTransform.ProcessMessage(MFTMessageType.NotifyStartOfStream, IntPtr.Zero));
ThrowIfError(MFExtern.MFCreateSample(out _mftOutSample));
_mftOutBufferContainer = new MFTOutputDataBuffer[1];
//todo:set the stream id again when receive media stream later.
_mftOutBufferContainer[0].dwStreamID = streamId;
_mftOutBufferContainer[0].dwStatus = 0;
_mftOutBufferContainer[0].pEvents = null;
_mftOutBufferContainer[0].pSample = Marshal.GetIUnknownForObject(_mftOutSample);
_videoStreamId = streamId;
_streamMediaType = mediaType;
}
/// +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=
/// <summary>
/// Set the flip type on our rotator transform in the EVR control
/// </summary>
/// <param name="flipType">the fliptype to use</param>
/// <history>
/// 01 Nov 18 Cynic - Originally Written
/// </history>
private void SetFlipModeOnTransform(RotateFlipType flipType)
{
// get the attribute container from the transform in the EVR player
IMFAttributes attributeContainer = ctlTantaEVRFilePlayer1.GetTransformAttributes();
if (attributeContainer == null)
{
return;
}
// set the fliptype as an int32. Attributes cannot contain enums
HResult hr = attributeContainer.SetUINT32(clsidFlipMode, (int)flipType);
// release it
System.Runtime.InteropServices.Marshal.ReleaseComObject(attributeContainer);
}
private IMFSinkWriter CreateSinkWriter(string url)
{
var factory = (IMFReadWriteClassFactory)(new MFReadWriteClassFactory());
// Create the attributes
IMFAttributes attributes = MediaFoundationApi.CreateAttributes(1);
attributes.SetUINT32(MediaFoundationAttributes.MF_READWRITE_ENABLE_HARDWARE_TRANSFORMS, 1);
object sinkWriterObject;
// TODO: need to move the class IDs into their own class for use in cases like this
var guidMFSinkWriter = new Guid("a3bbfb17-8273-4e52-9e0e-9739dc887990");
var guidIMFSinkWriter = new Guid("3137f1cd-fe5e-4805-a5d8-fb477448cb3d");
factory.CreateInstanceFromURL(guidMFSinkWriter, url, attributes, guidIMFSinkWriter, out sinkWriterObject);
Marshal.ReleaseComObject(factory);
return((IMFSinkWriter)sinkWriterObject);
}
private void CreateReaderAndWriter()
{
object sourceReaderObject = null;
object sinkWriterObject = null;
IMFAttributes attributes = null;
// Create the class factory
IMFReadWriteClassFactory factory = (IMFReadWriteClassFactory)(new MFReadWriteClassFactory());
// Create the attributes
MFHelper.MFCreateAttributes(out attributes, 1);
attributes.SetUINT32(new Guid(Consts.MF_READWRITE_ENABLE_HARDWARE_TRANSFORMS), 1);
// Use the factory to create the Source Reader
factory.CreateInstanceFromURL(new Guid(CLSID.MFSourceReader), this.sourceFilename, attributes, new Guid(IID.IMFSourceReader), out sourceReaderObject);
this.sourceReader = (IMFSourceReader)sourceReaderObject;
// Use the factory to create the Sink Writer
factory.CreateInstanceFromURL(new Guid(CLSID.MFSinkWriter), this.targetFilename, attributes, new Guid(IID.IMFSinkWriter), out sinkWriterObject);
this.sinkWriter = (IMFSinkWriter)sinkWriterObject;
}
private IMFSourceReader CreateSourceReader(IMFMediaSource mfs)
{
IMFSourceReader reader = null;
try
{
MFExtern.MFCreateAttributes(out sourcevideoreaderattribute, 2);
sourcevideoreaderattribute.SetGUID(MFAttributesClsid.MF_DEVSOURCE_ATTRIBUTE_SOURCE_TYPE, CLSID.MF_DEVSOURCE_ATTRIBUTE_SOURCE_TYPE_VIDCAP_GUID);
sourcevideoreaderattribute.SetUINT32(MFAttributesClsid.MF_SOURCE_READER_ENABLE_VIDEO_PROCESSING, 1);
MFExtern.MFCreateSourceReaderFromMediaSource(mfs, sourcevideoreaderattribute, out reader);
//reader.GetCurrentMediaType((int)__MIDL___MIDL_itf_mfreadwrite_0000_0001_0001.MF_SOURCE_READER_FIRST_VIDEO_STREAM, out sourcemeidatype);
}
catch (Exception e)
{
Debug.WriteLine("ERROR CreateSourceReader", e.StackTrace);
}
return(reader);
}
private void Form1_KeyPress(object sender, KeyPressEventArgs e)
{
switch (e.KeyChar)
{
// Space key toggles between running and paused
case ' ':
e.Handled = true;
if (g_pPlayer.GetState() == CPlayer.PlayerState.Started)
{
g_pPlayer.Pause();
}
else if (g_pPlayer.GetState() == CPlayer.PlayerState.Paused)
{
g_pPlayer.Play();
}
break;
case 'r':
e.Handled = true;
if (rotateAsyncToolStripMenuItem.Checked)
{
IMFAttributes ia = g_pPlayer.GetVideoAttributes();
if (ia != null)
{
Guid ClsidRotate = new Guid("AC776FB5-858F-4891-A5DC-FD01E79B5AD6");
int i;
HResult hr;
hr = ia.GetUINT32(ClsidRotate, out i);
if (hr >= 0)
{
i = i < 7 ? i + 1 : 0;
hr = ia.SetUINT32(ClsidRotate, i);
}
System.Runtime.InteropServices.Marshal.ReleaseComObject(ia);
}
}
break;
}
}
public HResult SetUINT32(Guid guidKey, int unValue)
{
return(m_Attribs.SetUINT32(guidKey, unValue));
}
/// <summary>
/// Associates a Boolean value with a key.
/// </summary>
/// <param name="attributes">A valid IMFAttributes instance.</param>
/// <param name="guidKey">Guid that identifies the value to set.</param>
/// <param name="value">New value for this key.</param>
/// <remarks>Media Foundation attributes don't support boolean values. This method set them as a 32-bits unsigned integer and store 1 for true and 0 for false.</remarks>
public static HResult SetBoolean(this IMFAttributes attributes, Guid guidKey, bool value)
{
return(attributes.SetUINT32(guidKey, (value ? 1u : 0u)));
}
/// <summary>
/// Starts the asychronous encode operation
/// </summary>
/// <param name="inputURL">Source filename</param>
/// <param name="outputURL">Targe filename</param>
/// <param name="audioOutput">Audio format that will be used for audio streams</param>
/// <param name="videoOutput">Video format that will be used for video streams</param>
/// <param name="startPosition">Starting position of the contet</param>
/// <param name="endPosition">Position where the new content will end</param>
public void Encode(string inputURL, string outputURL, AudioFormat audioOutput, VideoFormat videoOutput, ulong startPosition, ulong endPosition)
{
// If busy with other operation ignore and return
if (this.IsBusy())
{
return;
}
try
{
this.presentationClock = null;
this.startPosition = startPosition;
this.endPosition = endPosition;
object objectSource = null;
// Create the media source using source resolver and the input URL
uint objectType = default(uint);
this.mediaSource = null;
// Init source resolver
IMFSourceResolver sourceResolver = null;
MFHelper.MFCreateSourceResolver(out sourceResolver);
sourceResolver.CreateObjectFromURL(inputURL, Consts.MF_RESOLUTION_MEDIASOURCE, null, out objectType, out objectSource);
this.mediaSource = (IMFMediaSource)objectSource;
// Create the media session using a global start time so MF_TOPOLOGY_PROJECTSTOP can be used to stop the session
this.mediaSession = null;
IMFAttributes mediaSessionAttributes = null;
MFHelper.MFCreateAttributes(out mediaSessionAttributes, 1);
mediaSessionAttributes.SetUINT32(new Guid(Consts.MF_SESSION_GLOBAL_TIME), 1);
MFHelper.MFCreateMediaSession(mediaSessionAttributes, out this.mediaSession);
// Create the event handler
AsyncEventHandler mediaEventHandler = new AsyncEventHandler(this.mediaSession);
mediaEventHandler.MediaEvent += this.MediaEvent;
// Get the stream descriptor
IMFPresentationDescriptor presentationDescriptor = null;
mediaSource.CreatePresentationDescriptor(out presentationDescriptor);
// Get the duration
presentationDescriptor.GetUINT64(new Guid(Consts.MF_PD_DURATION), out this.duration);
IMFTranscodeProfile transcodeProfile = null;
Guid containerType = new Guid(Consts.MFTranscodeContainerType_MPEG4);
if (outputURL.EndsWith(".wmv", StringComparison.OrdinalIgnoreCase) || outputURL.EndsWith(".wma", StringComparison.OrdinalIgnoreCase))
{
containerType = new Guid(Consts.MFTranscodeContainerType_ASF);
}
// Generate the transcoding profile
transcodeProfile = SimpleFastEncode.CreateProfile(audioOutput, videoOutput, containerType);
// Create the MF topology using the profile
IMFTopology topology = null;
MFHelper.MFCreateTranscodeTopology(this.mediaSource, outputURL, transcodeProfile, out topology);
// Set the end position
topology.SetUINT64(new Guid(Consts.MF_TOPOLOGY_PROJECTSTART), 0);
topology.SetUINT64(new Guid(Consts.MF_TOPOLOGY_PROJECTSTOP), (endPosition == 0) ? this.duration : endPosition);
// Set the session topology
this.mediaSession.SetTopology((uint)Enums.MFSESSION_SETTOPOLOGY_FLAGS.None, topology);
}
catch (Exception ex)
{
this.mediaSession = null;
// Fire the EncodeError event
if (this.EncodeError != null)
{
this.EncodeError(new Exception(ex.Message, ex));
}
}
}
//-------------------------------------------------------------------
// SetDevice
//
// Set up preview for a specified video capture device.
//-------------------------------------------------------------------
public HResult SetDevice(MFDevice pDevice)
{
HResult hr = HResult.S_OK;
IMFActivate pActivate = pDevice.Activator;
IMFMediaSource pSource = null;
IMFAttributes pAttributes = null;
object o = null;
lock (this)
{
try
{
// Release the current device, if any.
hr = CloseDevice();
if (Succeeded(hr))
{
// Create the media source for the device.
hr = pActivate.ActivateObject(typeof(IMFMediaSource).GUID, out o);
}
if (Succeeded(hr))
{
pSource = (IMFMediaSource)o;
}
// Get Symbolic device link
m_pwszSymbolicLink = pDevice.SymbolicName;
//
// Create the source reader.
//
// Create an attribute store to hold initialization settings.
if (Succeeded(hr))
{
hr = MFExtern.MFCreateAttributes(out pAttributes, 2);
}
if (Succeeded(hr))
{
hr = pAttributes.SetUINT32(MFAttributesClsid.MF_READWRITE_DISABLE_CONVERTERS, 1);
}
if (Succeeded(hr))
{
hr = pAttributes.SetUnknown(MFAttributesClsid.MF_SOURCE_READER_ASYNC_CALLBACK, this);
}
IMFSourceReader pRead = null;
if (Succeeded(hr))
{
hr = MFExtern.MFCreateSourceReaderFromMediaSource(pSource, pAttributes, out pRead);
}
if (Succeeded(hr))
{
m_pReader = (IMFSourceReaderAsync)pRead;
}
if (Succeeded(hr))
{
// Try to find a suitable output type.
for (int i = 0; ; i++)
{
IMFMediaType pType;
hr = m_pReader.GetNativeMediaType((int)MF_SOURCE_READER.FirstVideoStream, i, out pType);
if (Failed(hr))
{
break;
}
try
{
hr = TryMediaType(pType);
if (Succeeded(hr))
{
// Found an output type.
break;
}
}
finally
{
SafeRelease(pType);
}
}
}
if (Succeeded(hr))
{
// Ask for the first sample.
hr = m_pReader.ReadSample((int)MF_SOURCE_READER.FirstVideoStream, 0, IntPtr.Zero, IntPtr.Zero, IntPtr.Zero, IntPtr.Zero);
}
if (Failed(hr))
{
if (pSource != null)
{
pSource.Shutdown();
// NOTE: The source reader shuts down the media source
// by default, but we might not have gotten that far.
}
CloseDevice();
}
}
finally
{
SafeRelease(pSource);
SafeRelease(pAttributes);
}
}
return(hr);
}
/// <summary>
/// Opens the Sink Writer object
/// </summary>
/// <param name="outputFileName">the filename we write out to</param>
/// <param name="wantDisableThrottling">if true we set a flag that disabled throttling</param>
/// <returns>an IMFSinkWriter object or null for fail</returns>
private IMFSinkWriter OpenSinkWriter(string outputFileName, bool wantDisableThrottling)
{
HResult hr;
IMFSinkWriter workingWriter = null;
IMFAttributes attributeContainer = null;
if ((outputFileName == null) || (outputFileName.Length == 0))
{
// we failed
throw new Exception("OpenSinkWriter: Invalid filename specified");
}
try
{
if (wantDisableThrottling == true)
{
// Initialize an attribute store. We will use this to
// specify the enumeration parameters.
hr = MFExtern.MFCreateAttributes(out attributeContainer, 1);
if (hr != HResult.S_OK)
{
// we failed
throw new Exception("OpenSinkWriter: failed on call to MFCreateAttributes, retVal=" + hr.ToString());
}
if (attributeContainer == null)
{
// we failed
throw new Exception("OpenSinkWriter: attributeContainer == MFAttributesClsid.null");
}
// setup the attribute container
hr = attributeContainer.SetUINT32(MFAttributesClsid.MF_SINK_WRITER_DISABLE_THROTTLING, 1);
if (hr != HResult.S_OK)
{
// we failed
throw new Exception("OpenSinkWriter: failed setting up the attributes, retVal=" + hr.ToString());
}
}
try
{
// Create the sink writer. This takes the URL of an output file or a pointer to a byte stream and
// creates the media sink internally. You could also use the more round-about
// MFCreateSinkWriterFromMediaSink takes a pointer to a media sink that has already been created by
// the application. If you are using one of the built-in media sinks, the MFCreateSinkWriterFromURL
// function is preferable, because the caller does not need to configure the media sink.
hr = MFExtern.MFCreateSinkWriterFromURL(outputFileName, null, null, out workingWriter);
if (hr != HResult.S_OK)
{
// we failed
throw new Exception("OpenSinkWriter: Failed on call to MFCreateSinkWriterFromURL, retVal=" + hr.ToString());
}
if (workingWriter == null)
{
// we failed
throw new Exception("OpenSinkWriter: Failed to create Sink Writer, Nothing will work.");
}
}
catch (Exception ex)
{
// note this clean up is in the Catch block not the finally block.
// if there are no errors we return it to the caller. The caller
// is expected to clean up after itself
if (workingWriter != null)
{
// clean up. Nothing else has this yet
Marshal.ReleaseComObject(workingWriter);
workingWriter = null;
}
workingWriter = null;
throw ex;
}
}
finally
{
if (attributeContainer != null)
{
// clean up.
Marshal.ReleaseComObject(attributeContainer);
}
}
return(workingWriter);
}
