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cocos2d-x/cocos/ui/videoplayer/VideoPlayer.h

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+/****************************************************************************
+ Copyright (c) 2014-2016 Chukong Technologies Inc.
+
+ http://www.cocos2d-x.org
+
+ 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 "base/ccMacros.h"
+#include "base/CCData.h"
+#include "base/CCRef.h"
+#include <functional>
+#include <string>
+#include <map>
+#include "renderer/gfx/Texture2D.h"
+
+#ifndef OBJC_CLASS
+#ifdef __OBJC__
+#define OBJC_CLASS(name) @class name
+#else
+#define OBJC_CLASS(name) class name
+#endif
+#endif // OBJC_CLASS
+
+NS_CC_BEGIN
+
+/**
+ * @class VideoPlayer
+ * @brief Displays a video file.
+ *
+ * @note VideoPlayer displays a video file base on system widget.
+ * It's mean VideoPlayer displays a video file above all graphical elements of cocos2d-x.
+ * @js NA
+ */
+class VideoPlayer : public Ref
+{
+  public:
+    /**
+     * Videoplayer play event type.
+     */
+    enum class EventType
+    {
+        PLAYING = 0,
+        PAUSED,
+        STOPPED,
+        COMPLETED,
+        META_LOADED,
+        CLICKED,
+        READY_TO_PLAY
+    };
+
+    VideoPlayer();
+    
+    /**
+     * A callback which will be called after specific VideoPlayer event happens.
+     */
+    typedef std::function<void()> ccVideoPlayerCallback;
+
+
+    /**
+     * Sets a URL as a video source for VideoPlayer.
+     */
+    virtual void setURL(const std::string &_videoURL);
+
+    /**
+     * Starts playback.
+     */
+    virtual void play();
+
+    /**
+     * Pauses playback.
+     */
+    virtual void pause();
+
+    /**
+     * Stops playback.
+     */
+    virtual void stop();
+
+    /**
+     * Seeks to specified time position.
+     *
+     * @param sec   The offset in seconds from the start to seek to.
+     */
+    virtual void seekTo(float sec);
+
+    /**
+     * Get the current play time, measure in seconds.
+     */
+    float currentTime() const;
+
+    float duration() const;
+
+    /**
+     * Get frame rgba pixel as bytes
+     */
+    void getFrame();
+
+    int getFrameChannel() const;
+
+    int getFrameWidth() const;
+
+    int getFrameHeight() const;
+
+    int getVideoTexDataSize() const;
+
+    void update();
+
+    void pushFrameDataToTexture2D(cocos2d::renderer::Texture* tex) const;
+
+    void setShowRawFrame(bool show) const;
+
+    /**
+     * Causes the video player to keep aspect ratio or no when displaying the video.
+     *
+     * @param enable    Specify true to keep aspect ratio or false to scale the video until
+     * both dimensions fit the visible bounds of the view exactly.
+     */
+    virtual void setKeepAspectRatioEnabled(bool enable);
+
+    /**
+     * Indicates whether the video player keep aspect ratio when displaying the video.
+     */
+    virtual bool isKeepAspectRatioEnabled() const { return _keepAspectRatioEnabled; }
+
+    /**
+     * Causes the video player to enter or exit full-screen mode.
+     *
+     * @param fullscreen    Specify true to enter full-screen mode or false to exit full-screen mode.
+     */
+    virtual void setFullScreenEnabled(bool fullscreen);
+
+    /**
+     * Register a callback to be invoked when the video state is updated.
+     *
+     * @param callback  The callback that will be run.
+     */
+    virtual void addEventListener(const std::string& name, const VideoPlayer::ccVideoPlayerCallback& callback);
+
+    /**
+     * @brief A function which will be called when video is playing.
+     *
+     * @param event @see VideoPlayer::EventType.
+     */
+    virtual void onPlayEvent(int event);
+
+    /**
+     * Toggle visibility of VideoPlayer.
+     */
+    virtual void setVisible(bool visible);
+
+    /**
+     * Set the rect of VideoPlayer.
+     */
+    virtual void setFrame(float x, float y, float width, float height);
+    
+  protected:
+
+    virtual ~VideoPlayer();
+
+  protected:
+
+    enum class Source
+    {
+        FILENAME = 0,
+        URL
+    };
+
+    bool _isVisible;
+    bool _fullScreenDirty;
+    bool _fullScreenEnabled;
+    bool _keepAspectRatioEnabled;
+
+    std::string _videoURL;
+    Source _videoSource;
+
+    int _videoPlayerIndex;
+    std::map<std::string, ccVideoPlayerCallback> _eventCallback;
+
+    void *_videoView;
+
+    int _texDataSize;
+
+private:
+    unsigned char* _videoPixels;
+    int _maxDataLen;
+
+    static const int PX_RGBA = 3;
+    static const int PX_RGB565 = 6;
+    static const int PX_BGRA = 7;
+};
+
+NS_CC_END