v01

thirdparty/Pangolin/include/pangolin/video/drivers/debayer.h

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+/* This file is part of the Pangolin Project.
+ * http://github.com/stevenlovegrove/Pangolin
+ *
+ * Copyright (c) 2014 Steven Lovegrove
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#pragma once
+
+#include <pangolin/pangolin.h>
+#include <pangolin/video/video.h>
+
+namespace pangolin
+{
+
+// Enum to match libdc1394's dc1394_bayer_method_t
+typedef enum {
+    BAYER_METHOD_NEAREST = 0,
+    BAYER_METHOD_SIMPLE,
+    BAYER_METHOD_BILINEAR,
+    BAYER_METHOD_HQLINEAR,
+    BAYER_METHOD_DOWNSAMPLE_,
+    BAYER_METHOD_EDGESENSE,
+    BAYER_METHOD_VNG,
+    BAYER_METHOD_AHD,
+
+    // Pangolin custom defines
+    BAYER_METHOD_NONE = 512,
+    BAYER_METHOD_DOWNSAMPLE,
+    BAYER_METHOD_DOWNSAMPLE_MONO
+} bayer_method_t;
+
+// Enum to match libdc1394's dc1394_color_filter_t
+typedef enum {
+    DC1394_COLOR_FILTER_RGGB = 512,
+    DC1394_COLOR_FILTER_GBRG,
+    DC1394_COLOR_FILTER_GRBG,
+    DC1394_COLOR_FILTER_BGGR
+} color_filter_t;
+
+// Video class that debayers its video input using the given method.
+class PANGOLIN_EXPORT DebayerVideo :
+        public VideoInterface,
+        public VideoFilterInterface,
+        public BufferAwareVideoInterface
+{
+public:
+    DebayerVideo(std::unique_ptr<VideoInterface>& videoin, const std::vector<bayer_method_t> &method, color_filter_t tile);
+    ~DebayerVideo();
+
+    //! Implement VideoInput::Start()
+    void Start();
+
+    //! Implement VideoInput::Stop()
+    void Stop();
+
+    //! Implement VideoInput::SizeBytes()
+    size_t SizeBytes() const;
+
+    //! Implement VideoInput::Streams()
+    const std::vector<StreamInfo>& Streams() const;
+
+    //! Implement VideoInput::GrabNext()
+    bool GrabNext( unsigned char* image, bool wait = true );
+
+    //! Implement VideoInput::GrabNewest()
+    bool GrabNewest( unsigned char* image, bool wait = true );
+
+    std::vector<VideoInterface*>& InputStreams();
+
+    static color_filter_t ColorFilterFromString(std::string str);
+
+    static bayer_method_t BayerMethodFromString(std::string str);
+
+    uint32_t AvailableFrames() const;
+
+    bool DropNFrames(uint32_t n);
+
+protected:
+    void ProcessStreams(unsigned char* out, const unsigned char* in);
+
+    std::unique_ptr<VideoInterface> src;
+    std::vector<VideoInterface*> videoin;
+    std::vector<StreamInfo> streams;
+
+    size_t size_bytes;
+    std::unique_ptr<unsigned char[]> buffer;
+
+    std::vector<bayer_method_t> methods;
+    color_filter_t tile;
+
+    picojson::value device_properties;
+    picojson::value frame_properties;
+};
+
+}