/// <summary>
/// Starts rendering to the target.
/// </summary>
/// <param name="videoPixelSize">The pixel size of the video.</param>
protected override void StartRenderingInternal(Size2 videoPixelSize)
{
m_outStreamNet = base.TargetFile.OpenOutputStream();
m_outStream = new MF.ByteStream(m_outStreamNet);
// Pass dummy filename as described here:
// https://social.msdn.microsoft.com/forums/windowsapps/en-us/49bffa74-4e84-4fd6-9d67-42e8385611b8/video-sinkwriter-in-metro-app
m_sinkWriter = MF.MediaFactory.CreateSinkWriterFromURL(
this.DummyFileName, m_outStream.NativePointer, null);
m_videoPixelSize = videoPixelSize;
CreateMediaTarget(m_sinkWriter, m_videoPixelSize, out m_streamIndex);
// Configure input
using (MF.MediaType mediaTypeIn = new MF.MediaType())
{
mediaTypeIn.Set <Guid>(MF.MediaTypeAttributeKeys.MajorType, MF.MediaTypeGuids.Video);
mediaTypeIn.Set <Guid>(MF.MediaTypeAttributeKeys.Subtype, VIDEO_INPUT_FORMAT);
mediaTypeIn.Set <int>(MF.MediaTypeAttributeKeys.InterlaceMode, (int)MF.VideoInterlaceMode.Progressive);
mediaTypeIn.Set <long>(MF.MediaTypeAttributeKeys.FrameSize, MFHelper.GetMFEncodedIntsByValues(videoPixelSize.Width, videoPixelSize.Height));
mediaTypeIn.Set <long>(MF.MediaTypeAttributeKeys.FrameRate, MFHelper.GetMFEncodedIntsByValues(m_framerate, 1));
m_sinkWriter.SetInputMediaType(m_streamIndex, mediaTypeIn, null);
}
// Start writing the video file
m_sinkWriter.BeginWriting();
// Set initial frame index
m_frameIndex = -1;
}
/// <summary>
/// Creates a media target.
/// </summary>
/// <param name="sinkWriter">The previously created SinkWriter.</param>
/// <param name="videoPixelSize">The pixel size of the video.</param>
/// <param name="streamIndex">The stream index for the new target.</param>
protected override void CreateMediaTarget(MF.SinkWriter sinkWriter, Size2 videoPixelSize, out int streamIndex)
{
using (MF.MediaType mediaTypeOut = new MF.MediaType())
{
mediaTypeOut.Set <Guid>(MF.MediaTypeAttributeKeys.MajorType, MF.MediaTypeGuids.Video);
mediaTypeOut.Set <Guid>(MF.MediaTypeAttributeKeys.Subtype, VIDEO_ENCODING_FORMAT);
mediaTypeOut.Set <int>(MF.MediaTypeAttributeKeys.AvgBitrate, base.Bitrate * 1000);
mediaTypeOut.Set <int>(MF.MediaTypeAttributeKeys.InterlaceMode, (int)MF.VideoInterlaceMode.Progressive);
mediaTypeOut.Set <long>(MF.MediaTypeAttributeKeys.FrameSize, MFHelper.GetMFEncodedIntsByValues(videoPixelSize.Width, videoPixelSize.Height));
mediaTypeOut.Set <long>(MF.MediaTypeAttributeKeys.FrameRate, MFHelper.GetMFEncodedIntsByValues(base.Framerate, 1));
sinkWriter.AddStream(mediaTypeOut, out streamIndex);
}
}
private bool disposedValue = false; // To detect redundant calls
protected virtual void Dispose(bool disposing)
{
if (!disposedValue)
{
if (disposing)
{
sinkWriter.NotifyEndOfSegment(streamIndex);
if (frameIndex > 0)
{
sinkWriter.Finalize();
}
sinkWriter.Dispose();
sinkWriter = null;
}
disposedValue = true;
}
}
public MediaFoundationAudioWriter(MF.SinkWriter sinkWriter, ref WAVEFORMATEX waveFormat, int desiredBitRate = 192000)
{
var sharpWf = waveFormat.ToSharpDX();
// Information on configuring an AAC media type can be found here:
// http://msdn.microsoft.com/en-gb/library/windows/desktop/dd742785%28v=vs.85%29.aspx
var outputMediaType = SelectMediaType(AudioFormat, sharpWf, desiredBitRate);
if (outputMediaType == null)
{
throw new InvalidOperationException("No suitable encoders available");
}
var inputMediaType = new MF.MediaType();
var size = 18 + sharpWf.ExtraSize;
sinkWriter.AddStream(outputMediaType, out streamIndex);
MF.MediaFactory.InitMediaTypeFromWaveFormatEx(inputMediaType, new[] { sharpWf }, size);
sinkWriter.SetInputMediaType(streamIndex, inputMediaType, null);
}
public MediaFoundationVideoWriter(string filePath, Size2 videoPixelSize, Guid videoInputFormat, bool supportAudio = false)
{
bitrate = 1500000;
framerate = 15;
if (!MFInitialized)
{
// Initialize MF library. MUST be called before any MF related operations.
MF.MediaFactory.Startup(MF.MediaFactory.Version, 0);
}
sinkWriter = MF.MediaFactory.CreateSinkWriterFromURL(filePath, IntPtr.Zero, null);
this.videoPixelSize = videoPixelSize;
CreateMediaTarget(sinkWriter, videoPixelSize, out streamIndex);
// Configure input
using (MF.MediaType mediaTypeIn = new MF.MediaType())
{
mediaTypeIn.Set <Guid>(MF.MediaTypeAttributeKeys.MajorType, MF.MediaTypeGuids.Video);
mediaTypeIn.Set <Guid>(MF.MediaTypeAttributeKeys.Subtype, videoInputFormat);
mediaTypeIn.Set <int>(MF.MediaTypeAttributeKeys.InterlaceMode, (int)MF.VideoInterlaceMode.Progressive);
mediaTypeIn.Set <long>(MF.MediaTypeAttributeKeys.FrameSize, MFHelper.GetMFEncodedIntsByValues(videoPixelSize.Width, videoPixelSize.Height));
mediaTypeIn.Set <long>(MF.MediaTypeAttributeKeys.FrameRate, MFHelper.GetMFEncodedIntsByValues(framerate, 1));
sinkWriter.SetInputMediaType(streamIndex, mediaTypeIn, null);
}
if (supportAudio)
{
// initialize audio writer
var waveFormat = WAVEFORMATEX.DefaultPCM;
audioWriter = new MP3AudioWriter(sinkWriter, ref waveFormat);
}
// Start writing the video file. MUST be called before write operations.
sinkWriter.BeginWriting();
// Set initial frame index
frameIndex = -1;
}
public AACAudioWriter(MF.SinkWriter sinkWriter, ref WAVEFORMATEX waveFormat, int desiredBitRate = 192000)
: base(sinkWriter, ref waveFormat, desiredBitRate)
{
}
protected virtual void Dispose(bool disposing)
{
if (!disposedValue)
{
if (disposing)
{
sinkWriter.NotifyEndOfSegment(streamIndex);
if (frameIndex > 0)
{
sinkWriter.Finalize();
}
sinkWriter.Dispose();
sinkWriter = null;
}
disposedValue = true;
}
}
public MediaFoundationVideoWriter(string filePath, Size2 videoPixelSize, Guid videoInputFormat, bool supportAudio = false)
{
bitrate = 1500000;
framerate = 15;
if (!MFInitialized)
{
// Initialize MF library. MUST be called before any MF related operations.
MF.MediaFactory.Startup(MF.MediaFactory.Version, 0);
}
sinkWriter = MF.MediaFactory.CreateSinkWriterFromURL(filePath, IntPtr.Zero, null);
this.videoPixelSize = videoPixelSize;
CreateMediaTarget(sinkWriter, videoPixelSize, out streamIndex);
// Configure input
using (MF.MediaType mediaTypeIn = new MF.MediaType())
{
mediaTypeIn.Set<Guid>(MF.MediaTypeAttributeKeys.MajorType, MF.MediaTypeGuids.Video);
mediaTypeIn.Set<Guid>(MF.MediaTypeAttributeKeys.Subtype, videoInputFormat);
mediaTypeIn.Set<int>(MF.MediaTypeAttributeKeys.InterlaceMode, (int)MF.VideoInterlaceMode.Progressive);
mediaTypeIn.Set<long>(MF.MediaTypeAttributeKeys.FrameSize, MFHelper.GetMFEncodedIntsByValues(videoPixelSize.Width, videoPixelSize.Height));
mediaTypeIn.Set<long>(MF.MediaTypeAttributeKeys.FrameRate, MFHelper.GetMFEncodedIntsByValues(framerate, 1));
sinkWriter.SetInputMediaType(streamIndex, mediaTypeIn, null);
}
if (supportAudio)
{
// initialize audio writer
var waveFormat = WAVEFORMATEX.DefaultPCM;
audioWriter = new MP3AudioWriter(sinkWriter, ref waveFormat);
}
// Start writing the video file. MUST be called before write operations.
sinkWriter.BeginWriting();
// Set initial frame index
frameIndex = -1;
}
/// <summary> /// Creates a media target. /// </summary> /// <param name="sinkWriter">The previously created SinkWriter.</param> /// <param name="videoPixelSize">The pixel size of the video.</param> /// <param name="streamIndex">The stream index for the new target.</param> protected abstract void CreateMediaTarget(MF.SinkWriter sinkWriter, SharpDX.Size2 videoPixelSize, out int streamIndex);
