VideoPlayer Class

Description

VideoPlayer是视频播放类。

EasyAR支持普通的视频、透明视频和流媒体播放。视频内容会被渲染到传入setRenderTexture的texture上。

该类只支持OpenGLES2的texture。

由于依赖于OpenGLES，本类的所有函数(包括析构函数)都必须在单个包含OpenGLES上下文的线程中调用。

当前版本要求宽高均为16的倍数。

支持的视频文件格式

Windows: Media Foundation兼容格式，安装额外的解码器可以支持更多格式，请参考 Supported Media Formats in Media Foundation ，不支持DirectShow

Mac: 不支持

Android: 系统支持的格式，请参考 Supported media formats 。

iOS: 系统支持的格式，当前没有有效的参考文档

Constructor

C: void easyar_VideoPlayer__ctor(easyar_VideoPlayer * * Return)

C++17: VideoPlayer()

Traditional C++: VideoPlayer()

Java: public VideoPlayer()

Kotlin: constructor()

Objective-C: + (easyar_VideoPlayer *) create

Swift: public convenience init()

C#: public VideoPlayer()

isAvailable

检查是否可用。只在Windows、Android和iOS上返回true，Mac上不可用。

C: bool easyar_VideoPlayer_isAvailable(void)

C++17: static bool isAvailable()

Traditional C++: static bool isAvailable()

Java: public static boolean isAvailable()

Kotlin: companion object fun isAvailable(): Boolean

Objective-C: + (bool)isAvailable

Swift: public static func isAvailable() -> Bool

C#: public static bool isAvailable()

setVideoType

设置视频类型。如果没有手动设置，将默认为普通类型。这个方法需要在open之前调用。

C: void easyar_VideoPlayer_setVideoType(easyar_VideoPlayer * This, easyar_VideoType videoType)

C++17: void setVideoType(VideoType videoType)

Traditional C++: void setVideoType(VideoType videoType)

Java: public void setVideoType(int videoType)

Kotlin: fun setVideoType(videoType: Int): Unit

Objective-C: - (void)setVideoType:(easyar_VideoType)videoType

Swift: public func setVideoType(_ videoType: VideoType) -> Void

C#: public virtual void setVideoType(VideoType videoType)

setRenderTexture

传入用来显示视频的texture到播放器。这个方法需要在open之前调用。

C: void easyar_VideoPlayer_setRenderTexture(easyar_VideoPlayer * This, easyar_TextureId * texture)

C++17: void setRenderTexture(std::shared_ptr<TextureId> texture)

Traditional C++: void setRenderTexture(TextureId * texture)

Java: public void setRenderTexture(@Nonnull TextureId texture)

Kotlin: fun setRenderTexture(texture: TextureId): Unit

Objective-C: - (void)setRenderTexture:(easyar_TextureId *)texture

Swift: public func setRenderTexture(_ texture: TextureId) -> Void

C#: public virtual void setRenderTexture(TextureId texture)

open

从 path 打开视频。

path 可以是本地视频文件（path/to/video.mp4）或url（http://www.../.../video.mp4）。storageType 表示path的类型。详细描述参见 StorageType 。

这个方法是异步的方法。open可能会花一些时间才能完成。如果你希望知道视频打开的结果或播放中的状态，需要处理callback数据。callback会在callbackScheduler对应的线程中被调用。你可以在回调中检查打开是否成功结束并在成功打开之后开始播放。

C: void easyar_VideoPlayer_open(easyar_VideoPlayer * This, easyar_String * path, easyar_StorageType storageType, easyar_CallbackScheduler * callbackScheduler, easyar_OptionalOfFunctorOfVoidFromVideoStatus callback)

C++17: void open(std::string path, StorageType storageType, std::shared_ptr<CallbackScheduler> callbackScheduler, std::optional<std::function<void(VideoStatus)>> callback)

Traditional C++: void open(String * path, StorageType storageType, CallbackScheduler * callbackScheduler, OptionalOfFunctorOfVoidFromVideoStatus callback)

Java: public void open(java.lang.@Nonnull String path, int storageType, @Nonnull CallbackScheduler callbackScheduler, @Nullable FunctorOfVoidFromVideoStatus callback)

Kotlin: fun open(path: String, storageType: Int, callbackScheduler: CallbackScheduler, callback: FunctorOfVoidFromVideoStatus?): Unit

Objective-C: - (void)open:(NSString *)path storageType:(easyar_StorageType)storageType callbackScheduler:(easyar_CallbackScheduler *)callbackScheduler callback:(void (^)(easyar_VideoStatus status))callback

Swift: public func `open`(_ path: String, _ storageType: StorageType, _ callbackScheduler: CallbackScheduler, _ callback: ((VideoStatus) -> Void)?) -> Void

C#: public virtual void open(string path, StorageType storageType, CallbackScheduler callbackScheduler, Optional<Action<VideoStatus>> callback)

close

关闭视频。

C: void easyar_VideoPlayer_close(easyar_VideoPlayer * This)

C++17: void close()

Traditional C++: void close()

Java: public void close()

Kotlin: fun close(): Unit

Objective-C: - (void)close

Swift: public func close() -> Void

C#: public virtual void close()

play

开始或继续播放视频。

C: bool easyar_VideoPlayer_play(easyar_VideoPlayer * This)

C++17: bool play()

Traditional C++: bool play()

Java: public boolean play()

Kotlin: fun play(): Boolean

Objective-C: - (bool)play

Swift: public func play() -> Bool

C#: public virtual bool play()

stop

停止视频播放。

C: void easyar_VideoPlayer_stop(easyar_VideoPlayer * This)

C++17: void stop()

Traditional C++: void stop()

Java: public void stop()

Kotlin: fun stop(): Unit

Objective-C: - (void)stop

Swift: public func stop() -> Void

C#: public virtual void stop()

pause

暂停视频播放。

C: void easyar_VideoPlayer_pause(easyar_VideoPlayer * This)

C++17: void pause()

Traditional C++: void pause()

Java: public void pause()

Kotlin: fun pause(): Unit

Objective-C: - (void)pause

Swift: public func pause() -> Void

C#: public virtual void pause()

isRenderTextureAvailable

视频texture是否可以用于渲染。可以用于检查传入player的texture是否被碰过。

C: bool easyar_VideoPlayer_isRenderTextureAvailable(easyar_VideoPlayer * This)

C++17: bool isRenderTextureAvailable()

Traditional C++: bool isRenderTextureAvailable()

Java: public boolean isRenderTextureAvailable()

Kotlin: fun isRenderTextureAvailable(): Boolean

Objective-C: - (bool)isRenderTextureAvailable

Swift: public func isRenderTextureAvailable() -> Bool

C#: public virtual bool isRenderTextureAvailable()

updateFrame

更新texture数据。这个方法需要在isRenderTextureAvailable返回true的时候在渲染线程上调用。

C: void easyar_VideoPlayer_updateFrame(easyar_VideoPlayer * This)

C++17: void updateFrame()

Traditional C++: void updateFrame()

Java: public void updateFrame()

Kotlin: fun updateFrame(): Unit

Objective-C: - (void)updateFrame

Swift: public func updateFrame() -> Void

C#: public virtual void updateFrame()

duration

返回视频长度。在成功的open之后使用。

C: int easyar_VideoPlayer_duration(easyar_VideoPlayer * This)

C++17: int duration()

Traditional C++: int duration()

Java: public int duration()

Kotlin: fun duration(): Int

Objective-C: - (int)duration

Swift: public func duration() -> Int32

C#: public virtual int duration()

currentPosition

返回当前播放到的视频位置。在成功的open之后使用。

C: int easyar_VideoPlayer_currentPosition(easyar_VideoPlayer * This)

C++17: int currentPosition()

Traditional C++: int currentPosition()

Java: public int currentPosition()

Kotlin: fun currentPosition(): Int

Objective-C: - (int)currentPosition

Swift: public func currentPosition() -> Int32

C#: public virtual int currentPosition()

seek

将播放位置调整到 position 。在成功的open之后使用。

C: bool easyar_VideoPlayer_seek(easyar_VideoPlayer * This, int position)

C++17: bool seek(int position)

Traditional C++: bool seek(int position)

Java: public boolean seek(int position)

Kotlin: fun seek(position: Int): Boolean

Objective-C: - (bool)seek:(int)position

Swift: public func seek(_ position: Int32) -> Bool

C#: public virtual bool seek(int position)

size

返回视频长宽。在成功的open之后使用。

C: easyar_Vec2I easyar_VideoPlayer_size(easyar_VideoPlayer * This)

C++17: Vec2I size()

Traditional C++: Vec2I size()

Java: public @Nonnull Vec2I size()

Kotlin: fun size(): Vec2I

Objective-C: - (easyar_Vec2I *)size

Swift: public func size() -> Vec2I

C#: public virtual Vec2I size()

volume

返回视频音量。在成功的open之后使用。

C: float easyar_VideoPlayer_volume(easyar_VideoPlayer * This)

C++17: float volume()

Traditional C++: float volume()

Java: public float volume()

Kotlin: fun volume(): Float

Objective-C: - (float)volume

Swift: public func volume() -> Float

C#: public virtual float volume()

setVolume

设置视频音量。在成功的open之后使用。

C: bool easyar_VideoPlayer_setVolume(easyar_VideoPlayer * This, float volume)

C++17: bool setVolume(float volume)

Traditional C++: bool setVolume(float volume)

Java: public boolean setVolume(float volume)

Kotlin: fun setVolume(volume: Float): Boolean

Objective-C: - (bool)setVolume:(float)volume

Swift: public func setVolume(_ volume: Float) -> Bool

C#: public virtual bool setVolume(float volume)