v01

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

@@ -0,0 +1,104 @@
+/* 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/log/packetstream_reader.h>
+#include <pangolin/log/playback_session.h>
+#include <pangolin/video/stream_encoder_factory.h>
+#include <pangolin/video/video.h>
+
+namespace pangolin
+{
+
+class PANGOLIN_EXPORT PangoVideo
+    : public VideoInterface, public VideoPropertiesInterface, public VideoPlaybackInterface
+{
+public:
+    PangoVideo(const std::string& filename, std::shared_ptr<PlaybackSession> playback_session);
+    ~PangoVideo();
+
+    // Implement VideoInterface
+
+    size_t SizeBytes() const override;
+
+    const std::vector<StreamInfo>& Streams() const override;
+
+    void Start() override;
+
+    void Stop() override;
+
+    bool GrabNext( unsigned char* image, bool wait = true ) override;
+
+    bool GrabNewest( unsigned char* image, bool wait = true ) override;
+
+    // Implement VideoPropertiesInterface
+    const picojson::value& DeviceProperties() const override {
+        if (-1 == _src_id) throw std::runtime_error("Not initialised");
+        return _device_properties;
+    }
+
+    const picojson::value& FrameProperties() const override {
+        return _frame_properties;
+    }
+
+    // Implement VideoPlaybackInterface
+
+    size_t GetCurrentFrameId() const override;
+
+    size_t GetTotalFrames() const override;
+
+    size_t Seek(size_t frameid) override;
+
+    std::string GetSourceUri();
+
+private:
+    void HandlePipeClosed();
+
+protected:
+    int FindPacketStreamSource();
+    void SetupStreams(const PacketStreamSource& src);
+
+    const std::string _filename;
+    std::shared_ptr<PlaybackSession> _playback_session;
+    std::shared_ptr<PacketStreamReader> _reader;
+    SyncTimeEventPromise _event_promise;
+    int _src_id;
+    const PacketStreamSource* _source;
+
+    size_t _size_bytes;
+    bool _fixed_size;
+    std::vector<StreamInfo> _streams;
+    std::vector<ImageDecoderFunc> stream_decoder;
+    picojson::value _device_properties;
+    picojson::value _frame_properties;
+    std::string _source_uri;
+
+    Registration<size_t> session_seek;
+};
+
+}