class VideoPlayer : FrameLayout, TextureView.SurfaceTextureListener{

    private var url:String? = null

    private var headers:Map<String,String>? = null

    private var mediaPlayer: IMediaPlayer? = null   //播放器

    private var container: FrameLayout? = null      //播放器根目录

    private var textureView: TextureView? = null   //视频显示视图

    private var surfaceTexture: SurfaceTexture? = null

    private var playerType:Int = PlayerTypes.TYPE_IJK

    private var surface: Surface? = null

    constructor(context: Context, attributeSet: AttributeSet):super(context,attributeSet){

        init()

    }

    /**

     * 设置播放器类型

     *

     * @param playerType IjkPlayer or MediaPlayer.

     */

    fun setPlayerType(playerType: Int) {

        this.playerType = playerType

    }

    fun setUp(url:String,headers:Map<String,String>?){

        this.url = url

        this.headers = headers

    }

    fun start(){

        mediaPlayer?.start()

    }

    private fun init(){

        container = FrameLayout(context)

        this.removeView(container)

        val params = LayoutParams(

            LayoutParams.MATCH_PARENT,

            LayoutParams.MATCH_PARENT

        )

        this.addView(container,params)

        initTextureView()

        initMediaPlayer()

    }

    private fun initTextureView(){

        if(textureView == null){

            textureView = TextureView(context)

            textureView?.surfaceTextureListener = this

        }

        container?.removeView(textureView)

        val params = LayoutParams(

            LayoutParams.MATCH_PARENT,

            LayoutParams.MATCH_PARENT,

            Gravity.CENTER

        )

        container?.addView(textureView,0,params)

    }

    private fun initMediaPlayer(){

        if(mediaPlayer == null){

            when(playerType){

                PlayerTypes.TYPE_IJK -> mediaPlayer = IjkMediaPlayer()

                PlayerTypes.TYPE_NATIVE -> mediaPlayer = AndroidMediaPlayer()

                else -> mediaPlayer = IjkMediaPlayer()

            }

        }

        mediaPlayer?.setOnVideoSizeChangedListener { player, w, h, sar_num, sar_den ->

            Log.d("======","setOnVideoSizeChangedListener")

        }

        mediaPlayer?.setOnErrorListener { player, what, extra ->

            Log.d("======","setOnErrorListener")

            true

        }

        mediaPlayer?.setOnCompletionListener {

            Log.d("======","setOnCompletionListener")

        }

        mediaPlayer?.setOnPreparedListener {

            Log.d("======","setOnPreparedListener")

        }

        mediaPlayer?.setOnInfoListener { player, what, extra ->

            Log.d("======","setOnInfoListener")

            true

        }

        mediaPlayer?.setOnBufferingUpdateListener { player, percent ->

            Log.d("======","setOnBufferingUpdateListener")

        }

        openMediaPlayer()

    }

    private fun openMediaPlayer(){

        mediaPlayer?.setDataSource(context, Uri.parse(url),headers)

        mediaPlayer?.prepareAsync()

    }

    override fun onSurfaceTextureSizeChanged(p0: SurfaceTexture?, p1: Int, p2: Int) {

    }

    override fun onSurfaceTextureUpdated(p0: SurfaceTexture?) {

    }

    override fun onSurfaceTextureDestroyed(p0: SurfaceTexture?): Boolean {

        return p0 == null

    }

    override fun onSurfaceTextureAvailable(p0: SurfaceTexture?, p1: Int, p2: Int) {

        if(surfaceTexture == null){

            surfaceTexture = p0

            if(surface == null){

                surface = Surface(surfaceTexture)

            }

            mediaPlayer?.setSurface(surface)

        }else{

            textureView?.surfaceTexture = surfaceTexture

        }

    }

}