/// <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); } }