[28897] | 1 | // -----------------------------------------------------------------------
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| 2 | // <copyright file="BackgroundRemovalStreamMessage.cs" company="Microsoft">
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| 3 | // Copyright (c) Microsoft Corporation. All rights reserved.
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| 4 | // </copyright>
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| 5 | // -----------------------------------------------------------------------
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| 6 |
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| 7 | namespace Microsoft.Samples.Kinect.Webserver.Sensor.Serialization
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| 8 | {
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| 9 | using System;
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| 10 | using System.Diagnostics.CodeAnalysis;
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| 11 |
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| 12 | using Microsoft.Kinect.Toolkit.BackgroundRemoval;
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| 13 |
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| 14 | /// <summary>
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| 15 | /// Serializable representation of a background removed color stream message to send to client.
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| 16 | /// </summary>
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| 17 | [SuppressMessage("StyleCop.CSharp.NamingRules", "SA1300:ElementMustBeginWithUpperCaseLetter",
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| 18 | Justification = "Lower case names allowed for JSON serialization.")]
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| 19 | public class BackgroundRemovalStreamMessage : ImageHeaderStreamMessage
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| 20 | {
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| 21 | /// <summary>
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| 22 | /// Bytes per pixel const.
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| 23 | /// </summary>
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| 24 | private const int BytesPerPixel = 4;
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| 25 |
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| 26 | /// <summary>
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| 27 | /// Tracking ID of the player currently being tracked. Pixels that do not belong
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| 28 | /// to this player are removed.
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| 29 | /// </summary>
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| 30 | /// <remarks>
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| 31 | /// This value will be 0 if no player is found in the corresponding color frame.
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| 32 | /// </remarks>
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| 33 | [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Naming", "CA1709:IdentifiersShouldBeCasedCorrectly", MessageId = "tracked", Justification = "Lower case names allowed for JSON serialization.")]
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| 34 | public int trackedPlayerId { get; set; }
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| 35 |
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| 36 | /// <summary>
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| 37 | /// The average depth of the pixels corresponding to the foreground player.
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| 38 | /// </summary>
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| 39 | [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Naming", "CA1709:IdentifiersShouldBeCasedCorrectly", MessageId = "average", Justification = "Lower case names allowed for JSON serialization.")]
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| 40 | public short averageDepth { get; set; }
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| 41 |
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| 42 | /// <summary>
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| 43 | /// Buffer that holds background removed color image.
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| 44 | /// </summary>
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| 45 | internal byte[] Buffer { get; private set; }
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| 46 |
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| 47 | /// <summary>
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| 48 | /// Update background removed color frame.
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| 49 | /// </summary>
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| 50 | /// <param name="frame">The input frame.</param>
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| 51 | public void UpdateBackgroundRemovedColorFrame(BackgroundRemovedColorFrame frame)
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| 52 | {
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| 53 | if (frame == null)
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| 54 | {
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| 55 | throw new ArgumentNullException("frame");
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| 56 | }
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| 57 |
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| 58 | this.timestamp = frame.Timestamp;
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| 59 | this.width = frame.Width;
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| 60 | this.height = frame.Height;
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| 61 | this.bufferLength = frame.PixelDataLength;
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| 62 | this.trackedPlayerId = frame.TrackedPlayerId;
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| 63 | this.averageDepth = frame.AverageDepth;
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| 64 |
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| 65 | if ((this.Buffer == null) || (this.Buffer.Length != this.bufferLength))
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| 66 | {
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| 67 | this.Buffer = new byte[this.bufferLength];
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| 68 | }
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| 69 |
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| 70 | unsafe
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| 71 | {
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| 72 | fixed (byte* messageDataPtr = this.Buffer)
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| 73 | {
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| 74 | fixed (byte* frameDataPtr = frame.GetRawPixelData())
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| 75 | {
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| 76 | byte* messageDataPixelPtr = messageDataPtr;
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| 77 | byte* frameDataPixelPtr = frameDataPtr;
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| 78 |
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| 79 | byte* messageDataPixelPtrEnd = messageDataPixelPtr + this.bufferLength;
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| 80 |
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| 81 | while (messageDataPixelPtr != messageDataPixelPtrEnd)
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| 82 | {
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| 83 | // Convert from BGRA to RGBA format
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| 84 | *(messageDataPixelPtr++) = *(frameDataPixelPtr + 2);
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| 85 | *(messageDataPixelPtr++) = *(frameDataPixelPtr + 1);
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| 86 | *(messageDataPixelPtr++) = *frameDataPixelPtr;
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| 87 | *(messageDataPixelPtr++) = *(frameDataPixelPtr + 3);
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| 88 |
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| 89 | frameDataPixelPtr += BytesPerPixel;
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| 90 | }
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| 91 | }
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| 92 | }
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| 93 | }
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| 94 | }
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| 95 | }
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| 96 | }
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