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/*
* Copyright (C) 2006 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package android.widget;
import android.annotation.NonNull;
import android.app.AlertDialog;
import android.compat.annotation.UnsupportedAppUsage;
import android.content.Context;
import android.content.DialogInterface;
import android.content.res.Resources;
import android.graphics.Canvas;
import android.media.AudioAttributes;
import android.media.AudioManager;
import android.media.Cea708CaptionRenderer;
import android.media.ClosedCaptionRenderer;
import android.media.MediaFormat;
import android.media.MediaPlayer;
import android.media.MediaPlayer.OnCompletionListener;
import android.media.MediaPlayer.OnErrorListener;
import android.media.MediaPlayer.OnInfoListener;
import android.media.Metadata;
import android.media.SubtitleController;
import android.media.SubtitleTrack.RenderingWidget;
import android.media.TtmlRenderer;
import android.media.WebVttRenderer;
import android.net.Uri;
import android.os.Build;
import android.os.Looper;
import android.util.AttributeSet;
import android.util.Log;
import android.util.Pair;
import android.view.KeyEvent;
import android.view.MotionEvent;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.View;
import android.widget.MediaController.MediaPlayerControl;
import java.io.IOException;
import java.io.InputStream;
import java.util.Map;
import java.util.Vector;
/**
* Displays a video file. The VideoView class
* can load images from various sources (such as resources or content
* providers), takes care of computing its measurement from the video so that
* it can be used in any layout manager, and provides various display options
* such as scaling and tinting.
*
* Note: VideoView does not retain its full state when going into the
* background. In particular, it does not restore the current play state,
* play position, selected tracks, or any subtitle tracks added via
* {@link #addSubtitleSource addSubtitleSource()}. Applications should
* save and restore these on their own in
* {@link android.app.Activity#onSaveInstanceState} and
* {@link android.app.Activity#onRestoreInstanceState}.
* Also note that the audio session id (from {@link #getAudioSessionId}) may
* change from its previously returned value when the VideoView is restored.
*
* By default, VideoView requests audio focus with {@link AudioManager#AUDIOFOCUS_GAIN}. Use
* {@link #setAudioFocusRequest(int)} to change this behavior.
*
* The default {@link AudioAttributes} used during playback have a usage of
* {@link AudioAttributes#USAGE_MEDIA} and a content type of
* {@link AudioAttributes#CONTENT_TYPE_MOVIE}, use {@link #setAudioAttributes(AudioAttributes)} to
* modify them.
*/
public class VideoView extends SurfaceView
implements MediaPlayerControl, SubtitleController.Anchor {
private static final String TAG = "VideoView";
// all possible internal states
private static final int STATE_ERROR = -1;
@UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P, trackingBug = 115609023)
private static final int STATE_IDLE = 0;
private static final int STATE_PREPARING = 1;
private static final int STATE_PREPARED = 2;
private static final int STATE_PLAYING = 3;
private static final int STATE_PAUSED = 4;
private static final int STATE_PLAYBACK_COMPLETED = 5;
private final Vector> mPendingSubtitleTracks = new Vector<>();
// settable by the client
@UnsupportedAppUsage
private Uri mUri;
@UnsupportedAppUsage
private Map mHeaders;
// mCurrentState is a VideoView object's current state.
// mTargetState is the state that a method caller intends to reach.
// For instance, regardless the VideoView object's current state,
// calling pause() intends to bring the object to a target state
// of STATE_PAUSED.
@UnsupportedAppUsage
private int mCurrentState = STATE_IDLE;
@UnsupportedAppUsage
private int mTargetState = STATE_IDLE;
// All the stuff we need for playing and showing a video
@UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P, trackingBug = 115609023)
private SurfaceHolder mSurfaceHolder = null;
@UnsupportedAppUsage
private MediaPlayer mMediaPlayer = null;
private int mAudioSession;
@UnsupportedAppUsage
private int mVideoWidth;
@UnsupportedAppUsage
private int mVideoHeight;
private int mSurfaceWidth;
private int mSurfaceHeight;
@UnsupportedAppUsage
private MediaController mMediaController;
private OnCompletionListener mOnCompletionListener;
private MediaPlayer.OnPreparedListener mOnPreparedListener;
@UnsupportedAppUsage
private int mCurrentBufferPercentage;
private OnErrorListener mOnErrorListener;
private OnInfoListener mOnInfoListener;
private int mSeekWhenPrepared; // recording the seek position while preparing
private boolean mCanPause;
private boolean mCanSeekBack;
private boolean mCanSeekForward;
private AudioManager mAudioManager;
private int mAudioFocusType = AudioManager.AUDIOFOCUS_GAIN; // legacy focus gain
private AudioAttributes mAudioAttributes;
/** Subtitle rendering widget overlaid on top of the video. */
private RenderingWidget mSubtitleWidget;
/** Listener for changes to subtitle data, used to redraw when needed. */
private RenderingWidget.OnChangedListener mSubtitlesChangedListener;
public VideoView(Context context) {
this(context, null);
}
public VideoView(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public VideoView(Context context, AttributeSet attrs, int defStyleAttr) {
this(context, attrs, defStyleAttr, 0);
}
public VideoView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
super(context, attrs, defStyleAttr, defStyleRes);
mVideoWidth = 0;
mVideoHeight = 0;
mAudioManager = (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE);
mAudioAttributes = new AudioAttributes.Builder().setUsage(AudioAttributes.USAGE_MEDIA)
.setContentType(AudioAttributes.CONTENT_TYPE_MOVIE).build();
getHolder().addCallback(mSHCallback);
getHolder().setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
setFocusable(true);
setFocusableInTouchMode(true);
requestFocus();
mCurrentState = STATE_IDLE;
mTargetState = STATE_IDLE;
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
//Log.i("@@@@", "onMeasure(" + MeasureSpec.toString(widthMeasureSpec) + ", "
// + MeasureSpec.toString(heightMeasureSpec) + ")");
int width = getDefaultSize(mVideoWidth, widthMeasureSpec);
int height = getDefaultSize(mVideoHeight, heightMeasureSpec);
if (mVideoWidth > 0 && mVideoHeight > 0) {
int widthSpecMode = MeasureSpec.getMode(widthMeasureSpec);
int widthSpecSize = MeasureSpec.getSize(widthMeasureSpec);
int heightSpecMode = MeasureSpec.getMode(heightMeasureSpec);
int heightSpecSize = MeasureSpec.getSize(heightMeasureSpec);
if (widthSpecMode == MeasureSpec.EXACTLY && heightSpecMode == MeasureSpec.EXACTLY) {
// the size is fixed
width = widthSpecSize;
height = heightSpecSize;
// for compatibility, we adjust size based on aspect ratio
if ( mVideoWidth * height < width * mVideoHeight ) {
//Log.i("@@@", "image too wide, correcting");
width = height * mVideoWidth / mVideoHeight;
} else if ( mVideoWidth * height > width * mVideoHeight ) {
//Log.i("@@@", "image too tall, correcting");
height = width * mVideoHeight / mVideoWidth;
}
} else if (widthSpecMode == MeasureSpec.EXACTLY) {
// only the width is fixed, adjust the height to match aspect ratio if possible
width = widthSpecSize;
height = width * mVideoHeight / mVideoWidth;
if (heightSpecMode == MeasureSpec.AT_MOST && height > heightSpecSize) {
// couldn't match aspect ratio within the constraints
height = heightSpecSize;
}
} else if (heightSpecMode == MeasureSpec.EXACTLY) {
// only the height is fixed, adjust the width to match aspect ratio if possible
height = heightSpecSize;
width = height * mVideoWidth / mVideoHeight;
if (widthSpecMode == MeasureSpec.AT_MOST && width > widthSpecSize) {
// couldn't match aspect ratio within the constraints
width = widthSpecSize;
}
} else {
// neither the width nor the height are fixed, try to use actual video size
width = mVideoWidth;
height = mVideoHeight;
if (heightSpecMode == MeasureSpec.AT_MOST && height > heightSpecSize) {
// too tall, decrease both width and height
height = heightSpecSize;
width = height * mVideoWidth / mVideoHeight;
}
if (widthSpecMode == MeasureSpec.AT_MOST && width > widthSpecSize) {
// too wide, decrease both width and height
width = widthSpecSize;
height = width * mVideoHeight / mVideoWidth;
}
}
} else {
// no size yet, just adopt the given spec sizes
}
setMeasuredDimension(width, height);
}
@Override
public CharSequence getAccessibilityClassName() {
return VideoView.class.getName();
}
public int resolveAdjustedSize(int desiredSize, int measureSpec) {
return getDefaultSize(desiredSize, measureSpec);
}
/**
* Sets video path.
*
* @param path the path of the video.
*/
public void setVideoPath(String path) {
setVideoURI(Uri.parse(path));
}
/**
* Sets video URI.
*
* @param uri the URI of the video.
*/
public void setVideoURI(Uri uri) {
setVideoURI(uri, null);
}
/**
* Sets video URI using specific headers.
*
* @param uri the URI of the video.
* @param headers the headers for the URI request.
* Note that the cross domain redirection is allowed by default, but that can be
* changed with key/value pairs through the headers parameter with
* "android-allow-cross-domain-redirect" as the key and "0" or "1" as the value
* to disallow or allow cross domain redirection.
*/
public void setVideoURI(Uri uri, Map headers) {
mUri = uri;
mHeaders = headers;
mSeekWhenPrepared = 0;
openVideo();
requestLayout();
invalidate();
}
/**
* Sets which type of audio focus will be requested during the playback, or configures playback
* to not request audio focus. Valid values for focus requests are
* {@link AudioManager#AUDIOFOCUS_GAIN}, {@link AudioManager#AUDIOFOCUS_GAIN_TRANSIENT},
* {@link AudioManager#AUDIOFOCUS_GAIN_TRANSIENT_MAY_DUCK}, and
* {@link AudioManager#AUDIOFOCUS_GAIN_TRANSIENT_EXCLUSIVE}. Or use
* {@link AudioManager#AUDIOFOCUS_NONE} to express that audio focus should not be
* requested when playback starts. You can for instance use this when playing a silent animation
* through this class, and you don't want to affect other audio applications playing in the
* background.
* @param focusGain the type of audio focus gain that will be requested, or
* {@link AudioManager#AUDIOFOCUS_NONE} to disable the use audio focus during playback.
*/
public void setAudioFocusRequest(int focusGain) {
if (focusGain != AudioManager.AUDIOFOCUS_NONE
&& focusGain != AudioManager.AUDIOFOCUS_GAIN
&& focusGain != AudioManager.AUDIOFOCUS_GAIN_TRANSIENT
&& focusGain != AudioManager.AUDIOFOCUS_GAIN_TRANSIENT_MAY_DUCK
&& focusGain != AudioManager.AUDIOFOCUS_GAIN_TRANSIENT_EXCLUSIVE) {
throw new IllegalArgumentException("Illegal audio focus type " + focusGain);
}
mAudioFocusType = focusGain;
}
/**
* Sets the {@link AudioAttributes} to be used during the playback of the video.
* @param attributes non-null AudioAttributes.
*/
public void setAudioAttributes(@NonNull AudioAttributes attributes) {
if (attributes == null) {
throw new IllegalArgumentException("Illegal null AudioAttributes");
}
mAudioAttributes = attributes;
}
/**
* Adds an external subtitle source file (from the provided input stream.)
*
* Note that a single external subtitle source may contain multiple or no
* supported tracks in it. If the source contained at least one track in
* it, one will receive an {@link MediaPlayer#MEDIA_INFO_METADATA_UPDATE}
* info message. Otherwise, if reading the source takes excessive time,
* one will receive a {@link MediaPlayer#MEDIA_INFO_SUBTITLE_TIMED_OUT}
* message. If the source contained no supported track (including an empty
* source file or null input stream), one will receive a {@link
* MediaPlayer#MEDIA_INFO_UNSUPPORTED_SUBTITLE} message. One can find the
* total number of available tracks using {@link MediaPlayer#getTrackInfo()}
* to see what additional tracks become available after this method call.
*
* @param is input stream containing the subtitle data. It will be
* closed by the media framework.
* @param format the format of the subtitle track(s). Must contain at least
* the mime type ({@link MediaFormat#KEY_MIME}) and the
* language ({@link MediaFormat#KEY_LANGUAGE}) of the file.
* If the file itself contains the language information,
* specify "und" for the language.
*/
public void addSubtitleSource(InputStream is, MediaFormat format) {
if (mMediaPlayer == null) {
mPendingSubtitleTracks.add(Pair.create(is, format));
} else {
try {
mMediaPlayer.addSubtitleSource(is, format);
} catch (IllegalStateException e) {
mInfoListener.onInfo(
mMediaPlayer, MediaPlayer.MEDIA_INFO_UNSUPPORTED_SUBTITLE, 0);
}
}
}
public void stopPlayback() {
if (mMediaPlayer != null) {
mMediaPlayer.stop();
mMediaPlayer.release();
mMediaPlayer = null;
mCurrentState = STATE_IDLE;
mTargetState = STATE_IDLE;
mAudioManager.abandonAudioFocus(null);
}
}
private void openVideo() {
if (mUri == null || mSurfaceHolder == null) {
// not ready for playback just yet, will try again later
return;
}
// we shouldn't clear the target state, because somebody might have
// called start() previously
release(false);
if (mAudioFocusType != AudioManager.AUDIOFOCUS_NONE) {
// TODO this should have a focus listener
mAudioManager.requestAudioFocus(null, mAudioAttributes, mAudioFocusType, 0 /*flags*/);
}
try {
mMediaPlayer = new MediaPlayer();
// TODO: create SubtitleController in MediaPlayer, but we need
// a context for the subtitle renderers
final Context context = getContext();
final SubtitleController controller = new SubtitleController(
context, mMediaPlayer.getMediaTimeProvider(), mMediaPlayer);
controller.registerRenderer(new WebVttRenderer(context));
controller.registerRenderer(new TtmlRenderer(context));
controller.registerRenderer(new Cea708CaptionRenderer(context));
controller.registerRenderer(new ClosedCaptionRenderer(context));
mMediaPlayer.setSubtitleAnchor(controller, this);
if (mAudioSession != 0) {
mMediaPlayer.setAudioSessionId(mAudioSession);
} else {
mAudioSession = mMediaPlayer.getAudioSessionId();
}
mMediaPlayer.setOnPreparedListener(mPreparedListener);
mMediaPlayer.setOnVideoSizeChangedListener(mSizeChangedListener);
mMediaPlayer.setOnCompletionListener(mCompletionListener);
mMediaPlayer.setOnErrorListener(mErrorListener);
mMediaPlayer.setOnInfoListener(mInfoListener);
mMediaPlayer.setOnBufferingUpdateListener(mBufferingUpdateListener);
mCurrentBufferPercentage = 0;
mMediaPlayer.setDataSource(mContext, mUri, mHeaders);
mMediaPlayer.setDisplay(mSurfaceHolder);
mMediaPlayer.setAudioAttributes(mAudioAttributes);
mMediaPlayer.setScreenOnWhilePlaying(true);
mMediaPlayer.prepareAsync();
for (Pair pending: mPendingSubtitleTracks) {
try {
mMediaPlayer.addSubtitleSource(pending.first, pending.second);
} catch (IllegalStateException e) {
mInfoListener.onInfo(
mMediaPlayer, MediaPlayer.MEDIA_INFO_UNSUPPORTED_SUBTITLE, 0);
}
}
// we don't set the target state here either, but preserve the
// target state that was there before.
mCurrentState = STATE_PREPARING;
attachMediaController();
} catch (IOException ex) {
Log.w(TAG, "Unable to open content: " + mUri, ex);
mCurrentState = STATE_ERROR;
mTargetState = STATE_ERROR;
mErrorListener.onError(mMediaPlayer, MediaPlayer.MEDIA_ERROR_UNKNOWN, 0);
return;
} catch (IllegalArgumentException ex) {
Log.w(TAG, "Unable to open content: " + mUri, ex);
mCurrentState = STATE_ERROR;
mTargetState = STATE_ERROR;
mErrorListener.onError(mMediaPlayer, MediaPlayer.MEDIA_ERROR_UNKNOWN, 0);
return;
} finally {
mPendingSubtitleTracks.clear();
}
}
public void setMediaController(MediaController controller) {
if (mMediaController != null) {
mMediaController.hide();
}
mMediaController = controller;
attachMediaController();
}
private void attachMediaController() {
if (mMediaPlayer != null && mMediaController != null) {
mMediaController.setMediaPlayer(this);
View anchorView = this.getParent() instanceof View ?
(View)this.getParent() : this;
mMediaController.setAnchorView(anchorView);
mMediaController.setEnabled(isInPlaybackState());
}
}
MediaPlayer.OnVideoSizeChangedListener mSizeChangedListener =
new MediaPlayer.OnVideoSizeChangedListener() {
public void onVideoSizeChanged(MediaPlayer mp, int width, int height) {
mVideoWidth = mp.getVideoWidth();
mVideoHeight = mp.getVideoHeight();
if (mVideoWidth != 0 && mVideoHeight != 0) {
getHolder().setFixedSize(mVideoWidth, mVideoHeight);
requestLayout();
}
}
};
@UnsupportedAppUsage
MediaPlayer.OnPreparedListener mPreparedListener = new MediaPlayer.OnPreparedListener() {
public void onPrepared(MediaPlayer mp) {
mCurrentState = STATE_PREPARED;
// Get the capabilities of the player for this stream
Metadata data = mp.getMetadata(MediaPlayer.METADATA_ALL,
MediaPlayer.BYPASS_METADATA_FILTER);
if (data != null) {
mCanPause = !data.has(Metadata.PAUSE_AVAILABLE)
|| data.getBoolean(Metadata.PAUSE_AVAILABLE);
mCanSeekBack = !data.has(Metadata.SEEK_BACKWARD_AVAILABLE)
|| data.getBoolean(Metadata.SEEK_BACKWARD_AVAILABLE);
mCanSeekForward = !data.has(Metadata.SEEK_FORWARD_AVAILABLE)
|| data.getBoolean(Metadata.SEEK_FORWARD_AVAILABLE);
} else {
mCanPause = mCanSeekBack = mCanSeekForward = true;
}
if (mOnPreparedListener != null) {
mOnPreparedListener.onPrepared(mMediaPlayer);
}
if (mMediaController != null) {
mMediaController.setEnabled(true);
}
mVideoWidth = mp.getVideoWidth();
mVideoHeight = mp.getVideoHeight();
int seekToPosition = mSeekWhenPrepared; // mSeekWhenPrepared may be changed after seekTo() call
if (seekToPosition != 0) {
seekTo(seekToPosition);
}
if (mVideoWidth != 0 && mVideoHeight != 0) {
//Log.i("@@@@", "video size: " + mVideoWidth +"/"+ mVideoHeight);
getHolder().setFixedSize(mVideoWidth, mVideoHeight);
if (mSurfaceWidth == mVideoWidth && mSurfaceHeight == mVideoHeight) {
// We didn't actually change the size (it was already at the size
// we need), so we won't get a "surface changed" callback, so
// start the video here instead of in the callback.
if (mTargetState == STATE_PLAYING) {
start();
if (mMediaController != null) {
mMediaController.show();
}
} else if (!isPlaying() &&
(seekToPosition != 0 || getCurrentPosition() > 0)) {
if (mMediaController != null) {
// Show the media controls when we're paused into a video and make 'em stick.
mMediaController.show(0);
}
}
}
} else {
// We don't know the video size yet, but should start anyway.
// The video size might be reported to us later.
if (mTargetState == STATE_PLAYING) {
start();
}
}
}
};
private MediaPlayer.OnCompletionListener mCompletionListener =
new MediaPlayer.OnCompletionListener() {
public void onCompletion(MediaPlayer mp) {
mCurrentState = STATE_PLAYBACK_COMPLETED;
mTargetState = STATE_PLAYBACK_COMPLETED;
if (mMediaController != null) {
mMediaController.hide();
}
if (mOnCompletionListener != null) {
mOnCompletionListener.onCompletion(mMediaPlayer);
}
if (mAudioFocusType != AudioManager.AUDIOFOCUS_NONE) {
mAudioManager.abandonAudioFocus(null);
}
}
};
private MediaPlayer.OnInfoListener mInfoListener =
new MediaPlayer.OnInfoListener() {
public boolean onInfo(MediaPlayer mp, int arg1, int arg2) {
if (mOnInfoListener != null) {
mOnInfoListener.onInfo(mp, arg1, arg2);
}
return true;
}
};
@UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P, trackingBug = 115609023)
private MediaPlayer.OnErrorListener mErrorListener =
new MediaPlayer.OnErrorListener() {
public boolean onError(MediaPlayer mp, int framework_err, int impl_err) {
Log.d(TAG, "Error: " + framework_err + "," + impl_err);
mCurrentState = STATE_ERROR;
mTargetState = STATE_ERROR;
if (mMediaController != null) {
mMediaController.hide();
}
/* If an error handler has been supplied, use it and finish. */
if (mOnErrorListener != null) {
if (mOnErrorListener.onError(mMediaPlayer, framework_err, impl_err)) {
return true;
}
}
/* Otherwise, pop up an error dialog so the user knows that
* something bad has happened. Only try and pop up the dialog
* if we're attached to a window. When we're going away and no
* longer have a window, don't bother showing the user an error.
*/
if (getWindowToken() != null) {
Resources r = mContext.getResources();
int messageId;
if (framework_err == MediaPlayer.MEDIA_ERROR_NOT_VALID_FOR_PROGRESSIVE_PLAYBACK) {
messageId = com.android.internal.R.string.VideoView_error_text_invalid_progressive_playback;
} else {
messageId = com.android.internal.R.string.VideoView_error_text_unknown;
}
new AlertDialog.Builder(mContext)
.setMessage(messageId)
.setPositiveButton(com.android.internal.R.string.VideoView_error_button,
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
/* If we get here, there is no onError listener, so
* at least inform them that the video is over.
*/
if (mOnCompletionListener != null) {
mOnCompletionListener.onCompletion(mMediaPlayer);
}
}
})
.setCancelable(false)
.show();
}
return true;
}
};
private MediaPlayer.OnBufferingUpdateListener mBufferingUpdateListener =
new MediaPlayer.OnBufferingUpdateListener() {
public void onBufferingUpdate(MediaPlayer mp, int percent) {
mCurrentBufferPercentage = percent;
}
};
/**
* Register a callback to be invoked when the media file
* is loaded and ready to go.
*
* @param l The callback that will be run
*/
public void setOnPreparedListener(MediaPlayer.OnPreparedListener l)
{
mOnPreparedListener = l;
}
/**
* Register a callback to be invoked when the end of a media file
* has been reached during playback.
*
* @param l The callback that will be run
*/
public void setOnCompletionListener(OnCompletionListener l)
{
mOnCompletionListener = l;
}
/**
* Register a callback to be invoked when an error occurs
* during playback or setup. If no listener is specified,
* or if the listener returned false, VideoView will inform
* the user of any errors.
*
* @param l The callback that will be run
*/
public void setOnErrorListener(OnErrorListener l)
{
mOnErrorListener = l;
}
/**
* Register a callback to be invoked when an informational event
* occurs during playback or setup.
*
* @param l The callback that will be run
*/
public void setOnInfoListener(OnInfoListener l) {
mOnInfoListener = l;
}
@UnsupportedAppUsage
SurfaceHolder.Callback mSHCallback = new SurfaceHolder.Callback()
{
public void surfaceChanged(SurfaceHolder holder, int format,
int w, int h)
{
mSurfaceWidth = w;
mSurfaceHeight = h;
boolean isValidState = (mTargetState == STATE_PLAYING);
boolean hasValidSize = (mVideoWidth == w && mVideoHeight == h);
if (mMediaPlayer != null && isValidState && hasValidSize) {
if (mSeekWhenPrepared != 0) {
seekTo(mSeekWhenPrepared);
}
start();
}
}
public void surfaceCreated(SurfaceHolder holder)
{
mSurfaceHolder = holder;
openVideo();
}
public void surfaceDestroyed(SurfaceHolder holder)
{
// after we return from this we can't use the surface any more
mSurfaceHolder = null;
if (mMediaController != null) mMediaController.hide();
release(true);
}
};
/*
* release the media player in any state
*/
@UnsupportedAppUsage
private void release(boolean cleartargetstate) {
if (mMediaPlayer != null) {
mMediaPlayer.reset();
mMediaPlayer.release();
mMediaPlayer = null;
mPendingSubtitleTracks.clear();
mCurrentState = STATE_IDLE;
if (cleartargetstate) {
mTargetState = STATE_IDLE;
}
if (mAudioFocusType != AudioManager.AUDIOFOCUS_NONE) {
mAudioManager.abandonAudioFocus(null);
}
}
}
@Override
public boolean onTouchEvent(MotionEvent ev) {
if (ev.getAction() == MotionEvent.ACTION_DOWN
&& isInPlaybackState() && mMediaController != null) {
toggleMediaControlsVisiblity();
}
return super.onTouchEvent(ev);
}
@Override
public boolean onTrackballEvent(MotionEvent ev) {
if (ev.getAction() == MotionEvent.ACTION_DOWN
&& isInPlaybackState() && mMediaController != null) {
toggleMediaControlsVisiblity();
}
return super.onTrackballEvent(ev);
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event)
{
boolean isKeyCodeSupported = keyCode != KeyEvent.KEYCODE_BACK &&
keyCode != KeyEvent.KEYCODE_VOLUME_UP &&
keyCode != KeyEvent.KEYCODE_VOLUME_DOWN &&
keyCode != KeyEvent.KEYCODE_VOLUME_MUTE &&
keyCode != KeyEvent.KEYCODE_MENU &&
keyCode != KeyEvent.KEYCODE_CALL &&
keyCode != KeyEvent.KEYCODE_ENDCALL;
if (isInPlaybackState() && isKeyCodeSupported && mMediaController != null) {
if (keyCode == KeyEvent.KEYCODE_HEADSETHOOK ||
keyCode == KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE) {
if (mMediaPlayer.isPlaying()) {
pause();
mMediaController.show();
} else {
start();
mMediaController.hide();
}
return true;
} else if (keyCode == KeyEvent.KEYCODE_MEDIA_PLAY) {
if (!mMediaPlayer.isPlaying()) {
start();
mMediaController.hide();
}
return true;
} else if (keyCode == KeyEvent.KEYCODE_MEDIA_STOP
|| keyCode == KeyEvent.KEYCODE_MEDIA_PAUSE) {
if (mMediaPlayer.isPlaying()) {
pause();
mMediaController.show();
}
return true;
} else {
toggleMediaControlsVisiblity();
}
}
return super.onKeyDown(keyCode, event);
}
private void toggleMediaControlsVisiblity() {
if (mMediaController.isShowing()) {
mMediaController.hide();
} else {
mMediaController.show();
}
}
@Override
public void start() {
if (isInPlaybackState()) {
mMediaPlayer.start();
mCurrentState = STATE_PLAYING;
}
mTargetState = STATE_PLAYING;
}
@Override
public void pause() {
if (isInPlaybackState()) {
if (mMediaPlayer.isPlaying()) {
mMediaPlayer.pause();
mCurrentState = STATE_PAUSED;
}
}
mTargetState = STATE_PAUSED;
}
public void suspend() {
release(false);
}
public void resume() {
openVideo();
}
@Override
public int getDuration() {
if (isInPlaybackState()) {
return mMediaPlayer.getDuration();
}
return -1;
}
@Override
public int getCurrentPosition() {
if (isInPlaybackState()) {
return mMediaPlayer.getCurrentPosition();
}
return 0;
}
@Override
public void seekTo(int msec) {
if (isInPlaybackState()) {
mMediaPlayer.seekTo(msec);
mSeekWhenPrepared = 0;
} else {
mSeekWhenPrepared = msec;
}
}
@Override
public boolean isPlaying() {
return isInPlaybackState() && mMediaPlayer.isPlaying();
}
@Override
public int getBufferPercentage() {
if (mMediaPlayer != null) {
return mCurrentBufferPercentage;
}
return 0;
}
private boolean isInPlaybackState() {
return (mMediaPlayer != null &&
mCurrentState != STATE_ERROR &&
mCurrentState != STATE_IDLE &&
mCurrentState != STATE_PREPARING);
}
@Override
public boolean canPause() {
return mCanPause;
}
@Override
public boolean canSeekBackward() {
return mCanSeekBack;
}
@Override
public boolean canSeekForward() {
return mCanSeekForward;
}
@Override
public int getAudioSessionId() {
if (mAudioSession == 0) {
MediaPlayer foo = new MediaPlayer();
mAudioSession = foo.getAudioSessionId();
foo.release();
}
return mAudioSession;
}
@Override
protected void onAttachedToWindow() {
super.onAttachedToWindow();
if (mSubtitleWidget != null) {
mSubtitleWidget.onAttachedToWindow();
}
}
@Override
protected void onDetachedFromWindow() {
super.onDetachedFromWindow();
if (mSubtitleWidget != null) {
mSubtitleWidget.onDetachedFromWindow();
}
}
@Override
protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
super.onLayout(changed, left, top, right, bottom);
if (mSubtitleWidget != null) {
measureAndLayoutSubtitleWidget();
}
}
@Override
public void draw(Canvas canvas) {
super.draw(canvas);
if (mSubtitleWidget != null) {
final int saveCount = canvas.save();
canvas.translate(getPaddingLeft(), getPaddingTop());
mSubtitleWidget.draw(canvas);
canvas.restoreToCount(saveCount);
}
}
/**
* Forces a measurement and layout pass for all overlaid views.
*
* @see #setSubtitleWidget(RenderingWidget)
*/
private void measureAndLayoutSubtitleWidget() {
final int width = getWidth() - getPaddingLeft() - getPaddingRight();
final int height = getHeight() - getPaddingTop() - getPaddingBottom();
mSubtitleWidget.setSize(width, height);
}
/** @hide */
@Override
public void setSubtitleWidget(RenderingWidget subtitleWidget) {
if (mSubtitleWidget == subtitleWidget) {
return;
}
final boolean attachedToWindow = isAttachedToWindow();
if (mSubtitleWidget != null) {
if (attachedToWindow) {
mSubtitleWidget.onDetachedFromWindow();
}
mSubtitleWidget.setOnChangedListener(null);
}
mSubtitleWidget = subtitleWidget;
if (subtitleWidget != null) {
if (mSubtitlesChangedListener == null) {
mSubtitlesChangedListener = new RenderingWidget.OnChangedListener() {
@Override
public void onChanged(RenderingWidget renderingWidget) {
invalidate();
}
};
}
setWillNotDraw(false);
subtitleWidget.setOnChangedListener(mSubtitlesChangedListener);
if (attachedToWindow) {
subtitleWidget.onAttachedToWindow();
requestLayout();
}
} else {
setWillNotDraw(true);
}
invalidate();
}
/** @hide */
@Override
public Looper getSubtitleLooper() {
return Looper.getMainLooper();
}
}