Ejemplo n.º 1
0
 /// <inheritdoc/>
 public void Stop()
 {
     if (this.camera != null)
     {
         this.camera.Close();
         this.camera.Dispose();
         this.camera = null;
     }
 }
Ejemplo n.º 2
0
 /// <summary>
 /// Called by the pipeline when media capture should be stopped
 /// </summary>
 private void OnPipelineStop()
 {
     if (this.camera != null)
     {
         this.camera.Close();
         this.camera.Dispose();
         this.camera = null;
     }
 }
Ejemplo n.º 3
0
 /// <summary>
 /// Called by the pipeline when media capture should be stopped
 /// </summary>
 void IStartable.Stop()
 {
     if (this.camera != null)
     {
         this.camera.Close();
         this.camera.Dispose();
         this.camera = null;
     }
 }
Ejemplo n.º 4
0
 /// <summary>
 /// Dispose method
 /// </summary>
 public void Dispose()
 {
     // check for null since it's possible that Start was never called
     if (this.camera != null)
     {
         this.camera.Close();
         this.camera.Dispose();
         this.camera = null;
     }
 }
Ejemplo n.º 5
0
        /// <inheritdoc/>
        public void Stop(DateTime finalOriginatingTime, Action notifyCompleted)
        {
            if (this.camera != null)
            {
                this.camera.Close();
                this.camera.Dispose();
                this.camera = null;
            }

            notifyCompleted();
        }
Ejemplo n.º 6
0
        /// <summary>
        /// Called once all the subscriptions are established.
        /// </summary>
        private unsafe void OnPipelineStart()
        {
            this.camera = new MediaCaptureInternal(this.configuration.DeviceId);
            this.camera.Open();
            var isFormatSupported = false;

            foreach (var format in this.camera.SupportedPixelFormats())
            {
                if (format.Pixels == this.configuration.PixelFormat)
                {
                    this.camera.SetVideoFormat(this.configuration.Width, this.configuration.Height, format);
                    isFormatSupported = true;
                }
            }

            if (!isFormatSupported)
            {
                throw new ArgumentException($"Pixel format {this.configuration.PixelFormat} is not supported by the camera");
            }

            var current = this.camera.GetVideoFormat();

            if (current.Width != this.configuration.Width || current.Height != this.configuration.Height)
            {
                throw new ArgumentException($"Width/height {this.configuration.Width}x{this.configuration.Height} is not supported by the camera");
            }

            this.camera.OnFrame += (_, frame) =>
            {
                var originatingTime = this.pipeline.GetCurrentTime();

                if (this.Raw.HasSubscribers)
                {
                    var len = frame.Length;
                    using (Shared <byte[]> shared = RawPool.GetOrCreate(() => new byte[len]))
                    {
                        var buffer = shared.Resource.Length >= len ? shared : new Shared <byte[]>(new byte[len], shared.Recycler);
                        Marshal.Copy(frame.Start, buffer.Resource, 0, len);
                        this.Raw.Post(buffer, originatingTime);
                    }
                }

                if (this.Out.HasSubscribers)
                {
                    using (var sharedImage = ImagePool.GetOrCreate(this.configuration.Width, this.configuration.Height, PixelFormat.BGR_24bpp))
                    {
                        if (this.configuration.PixelFormat == PixelFormatId.BGR24)
                        {
                            sharedImage.Resource.CopyFrom((IntPtr)frame.Start);
                            this.Out.Post(sharedImage, this.pipeline.GetCurrentTime());
                        }
                        else if (this.configuration.PixelFormat == PixelFormatId.YUYV)
                        {
                            // convert YUYV -> BGR24 (see https://msdn.microsoft.com/en-us/library/ms893078.aspx)
                            var len = (int)(frame.Length * 1.5);
                            using (Shared <byte[]> shared = RawPool.GetOrCreate(() => new byte[len]))
                            {
                                var buffer = shared.Resource.Length >= len ? shared : new Shared <byte[]>(new byte[len], shared.Recycler);
                                var bytes  = buffer.Resource;
                                var pY     = (byte *)frame.Start.ToPointer();
                                var pU     = pY + 1;
                                var pV     = pY + 2;
                                for (var i = 0; i < len;)
                                {
                                    var y = (*pY - 16) * 298;
                                    var u = *pU - 128;
                                    var v = *pV - 128;
                                    var b = (y + (516 * u) + 128) >> 8;
                                    var g = (y - (100 * u) - (208 * v) + 128) >> 8;
                                    var r = (y + (409 * v) + 128) >> 8;
                                    bytes[i++] = (byte)(b < 0 ? 0 : b > 255 ? 255 : b);
                                    bytes[i++] = (byte)(g < 0 ? 0 : g > 255 ? 255 : g);
                                    bytes[i++] = (byte)(r < 0 ? 0 : r > 255 ? 255 : r);
                                    pY        += 2;
                                    pU        += 4;
                                    pV        += 4;
                                }

                                this.Raw.Post(buffer, originatingTime);
                            }
                        }
                    }
                }

#if TEST_DROPPED_FRAMES
                System.Threading.Thread.Sleep(1000); // for testing dropped frames
#endif // TEST_DROPPED_FRAMES

                frame.Dispose(); // release back to driver!
            };

            this.camera.StreamBuffers();
        }
Ejemplo n.º 7
0
        /// <inheritdoc/>
        public unsafe void Start(Action <DateTime> notifyCompletionTime)
        {
            // notify that this is an infinite source component
            notifyCompletionTime(DateTime.MaxValue);

            this.camera = new MediaCaptureInternal(this.configuration.DeviceId);
            this.camera.Open();
            var isFormatSupported = false;

            foreach (var format in this.camera.SupportedPixelFormats())
            {
                if (format.Pixels == this.configuration.PixelFormat)
                {
                    this.camera.SetVideoFormat(this.configuration.Width, this.configuration.Height, format);
                    isFormatSupported = true;
                }
            }

            if (!isFormatSupported)
            {
                throw new ArgumentException($"Pixel format {this.configuration.PixelFormat} is not supported by the camera");
            }

            var current = this.camera.GetVideoFormat();

            if (current.Width != this.configuration.Width || current.Height != this.configuration.Height)
            {
                throw new ArgumentException($"Width/height {this.configuration.Width}x{this.configuration.Height} is not supported by the camera");
            }

            this.camera.OnFrame += (_, frame) =>
            {
                var originatingTime = this.pipeline.GetCurrentTime();

                if (this.Raw.HasSubscribers)
                {
                    var len = frame.Length;
                    using (Shared <byte[]> shared = SharedArrayPool <byte> .GetOrCreate(len))
                    {
                        Marshal.Copy(frame.Start, shared.Resource, 0, len);
                        this.Raw.Post(shared, originatingTime);
                    }
                }

                if (this.Out.HasSubscribers)
                {
                    using (var sharedImage = ImagePool.GetOrCreate(this.configuration.Width, this.configuration.Height, PixelFormat.BGR_24bpp))
                    {
                        if (this.configuration.PixelFormat == PixelFormatId.BGR24)
                        {
                            sharedImage.Resource.CopyFrom((IntPtr)frame.Start);
                            this.Out.Post(sharedImage, this.pipeline.GetCurrentTime());
                        }
                        else if (this.configuration.PixelFormat == PixelFormatId.YUYV)
                        {
                            // convert YUYV -> BGR24 (see https://msdn.microsoft.com/en-us/library/ms893078.aspx)
                            var len = (int)(frame.Length * 1.5);
                            using (Shared <byte[]> shared = SharedArrayPool <byte> .GetOrCreate(len))
                            {
                                var bytes = shared.Resource;
                                var pY    = (byte *)frame.Start.ToPointer();
                                var pU    = pY + 1;
                                var pV    = pY + 3;
                                for (var i = 0; i < len;)
                                {
                                    int y = (*pY - 16) * 298;
                                    int u = *pU - 128;
                                    int v = *pV - 128;
                                    int r = (y + (409 * v) + 128) >> 8;
                                    int g = (y - (100 * u) - (208 * v) + 128) >> 8;
                                    int b = (y + (516 * u) + 128) >> 8;

                                    bytes[i++] = (byte)((r < 0) ? 0 : ((r > 255) ? 255 : r));
                                    bytes[i++] = (byte)((g < 0) ? 0 : ((g > 255) ? 255 : g));
                                    bytes[i++] = (byte)((b < 0) ? 0 : ((b > 255) ? 255 : b));

                                    pY += 2;

                                    y          = (*pY - 16) * 298;
                                    r          = (y + (409 * v) + 128) >> 8;
                                    g          = (y - (100 * u) - (208 * v) + 128) >> 8;
                                    b          = (y + (516 * u) + 128) >> 8;
                                    bytes[i++] = (byte)((r < 0) ? 0 : ((r > 255) ? 255 : r));
                                    bytes[i++] = (byte)((g < 0) ? 0 : ((g > 255) ? 255 : g));
                                    bytes[i++] = (byte)((b < 0) ? 0 : ((b > 255) ? 255 : b));

                                    pY += 2;
                                    pU += 4;
                                    pV += 4;
                                }

                                sharedImage.Resource.CopyFrom(bytes);
                                this.Out.Post(sharedImage, originatingTime);
                            }
                        }
                    }
                }

#if TEST_DROPPED_FRAMES
                System.Threading.Thread.Sleep(1000); // for testing dropped frames
#endif // TEST_DROPPED_FRAMES

                frame.Dispose(); // release back to driver!
            };

            this.camera.StreamBuffers();
        }