/*
* Copyright (C) 2014 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 com.sakurafish.exam.hls.exoplayer;
import android.Manifest.permission;
import android.annotation.TargetApi;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.net.Uri;
import android.os.Bundle;
import android.text.TextUtils;
import android.util.Log;
import android.view.KeyEvent;
import android.view.Menu;
import android.view.MenuItem;
import android.view.MotionEvent;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.View.OnKeyListener;
import android.view.View.OnTouchListener;
import android.view.accessibility.CaptioningManager;
import android.widget.Button;
import android.widget.MediaController;
import android.widget.PopupMenu;
import android.widget.PopupMenu.OnMenuItemClickListener;
import android.widget.TextView;
import android.widget.Toast;
import com.google.android.exoplayer.AspectRatioFrameLayout;
import com.google.android.exoplayer.ExoPlaybackException;
import com.google.android.exoplayer.ExoPlayer;
import com.google.android.exoplayer.MediaCodecTrackRenderer.DecoderInitializationException;
import com.google.android.exoplayer.MediaCodecUtil.DecoderQueryException;
import com.google.android.exoplayer.MediaFormat;
import com.google.android.exoplayer.audio.AudioCapabilities;
import com.google.android.exoplayer.audio.AudioCapabilitiesReceiver;
import com.google.android.exoplayer.drm.UnsupportedDrmException;
import com.google.android.exoplayer.metadata.id3.GeobFrame;
import com.google.android.exoplayer.metadata.id3.Id3Frame;
import com.google.android.exoplayer.metadata.id3.PrivFrame;
import com.google.android.exoplayer.metadata.id3.TxxxFrame;
import com.google.android.exoplayer.text.CaptionStyleCompat;
import com.google.android.exoplayer.text.Cue;
import com.google.android.exoplayer.text.SubtitleLayout;
import com.google.android.exoplayer.util.DebugTextViewHelper;
import com.google.android.exoplayer.util.MimeTypes;
import com.google.android.exoplayer.util.Util;
import com.google.android.exoplayer.util.VerboseLogUtil;
import com.sakurafish.exam.hls.exoplayer.player.DemoPlayer;
import com.sakurafish.exam.hls.exoplayer.player.HlsRendererBuilder;
import java.net.CookieHandler;
import java.net.CookieManager;
import java.net.CookiePolicy;
import java.util.List;
import java.util.Locale;
/**
* An activity that plays media using {@link DemoPlayer}.
*/
public class PlayerActivity extends Activity implements SurfaceHolder.Callback, OnClickListener,
DemoPlayer.Listener, DemoPlayer.CaptionListener, DemoPlayer.Id3MetadataListener,
AudioCapabilitiesReceiver.Listener {
// For use within demo app code.
public static final String CONTENT_ID_EXTRA = "content_id";
public static final String CONTENT_TYPE_EXTRA = "content_type";
public static final String PROVIDER_EXTRA = "provider";
// For use when launching the demo app using adb.
private static final String CONTENT_EXT_EXTRA = "type";
private static final String TAG = "PlayerActivity";
private static final int MENU_GROUP_TRACKS = 1;
private static final int ID_OFFSET = 2;
private static final CookieManager defaultCookieManager;
static {
defaultCookieManager = new CookieManager();
defaultCookieManager.setCookiePolicy(CookiePolicy.ACCEPT_ORIGINAL_SERVER);
}
private EventLogger eventLogger;
private MediaController mediaController;
private View debugRootView;
private View shutterView;
private AspectRatioFrameLayout videoFrame;
private SurfaceView surfaceView;
private TextView debugTextView;
private TextView playerStateTextView;
private SubtitleLayout subtitleLayout;
private Button videoButton;
private Button audioButton;
private Button textButton;
private Button retryButton;
private DemoPlayer player;
private DebugTextViewHelper debugViewHelper;
private boolean playerNeedsPrepare;
private long playerPosition;
private boolean enableBackgroundAudio;
private Uri contentUri;
private int contentType;
private String contentId;
private String provider;
private AudioCapabilitiesReceiver audioCapabilitiesReceiver;
// Activity lifecycle
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.player_activity);
View root = findViewById(R.id.root);
root.setOnTouchListener(new OnTouchListener() {
@Override
public boolean onTouch(View view, MotionEvent motionEvent) {
if (motionEvent.getAction() == MotionEvent.ACTION_DOWN) {
toggleControlsVisibility();
} else if (motionEvent.getAction() == MotionEvent.ACTION_UP) {
view.performClick();
}
return true;
}
});
root.setOnKeyListener(new OnKeyListener() {
@Override
public boolean onKey(View v, int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_BACK || keyCode == KeyEvent.KEYCODE_ESCAPE
|| keyCode == KeyEvent.KEYCODE_MENU) {
return false;
}
return mediaController.dispatchKeyEvent(event);
}
});
shutterView = findViewById(R.id.shutter);
debugRootView = findViewById(R.id.controls_root);
videoFrame = (AspectRatioFrameLayout) findViewById(R.id.video_frame);
surfaceView = (SurfaceView) findViewById(R.id.surface_view);
surfaceView.getHolder().addCallback(this);
debugTextView = (TextView) findViewById(R.id.debug_text_view);
playerStateTextView = (TextView) findViewById(R.id.player_state_view);
subtitleLayout = (SubtitleLayout) findViewById(R.id.subtitles);
mediaController = new KeyCompatibleMediaController(this);
mediaController.setAnchorView(root);
retryButton = (Button) findViewById(R.id.retry_button);
retryButton.setOnClickListener(this);
videoButton = (Button) findViewById(R.id.video_controls);
audioButton = (Button) findViewById(R.id.audio_controls);
textButton = (Button) findViewById(R.id.text_controls);
CookieHandler currentHandler = CookieHandler.getDefault();
if (currentHandler != defaultCookieManager) {
CookieHandler.setDefault(defaultCookieManager);
}
audioCapabilitiesReceiver = new AudioCapabilitiesReceiver(this, this);
audioCapabilitiesReceiver.register();
}
@Override
public void onNewIntent(Intent intent) {
releasePlayer();
playerPosition = 0;
setIntent(intent);
}
@Override
public void onResume() {
super.onResume();
Intent intent = getIntent();
contentUri = intent.getData();
contentType = intent.getIntExtra(CONTENT_TYPE_EXTRA,
inferContentType(contentUri, intent.getStringExtra(CONTENT_EXT_EXTRA)));
contentId = intent.getStringExtra(CONTENT_ID_EXTRA);
provider = intent.getStringExtra(PROVIDER_EXTRA);
configureSubtitleView();
if (player == null) {
if (!maybeRequestPermission()) {
preparePlayer(true);
}
} else {
player.setBackgrounded(false);
}
}
@Override
public void onPause() {
super.onPause();
if (!enableBackgroundAudio) {
releasePlayer();
} else {
player.setBackgrounded(true);
}
shutterView.setVisibility(View.VISIBLE);
}
@Override
public void onDestroy() {
super.onDestroy();
audioCapabilitiesReceiver.unregister();
releasePlayer();
}
// OnClickListener methods
@Override
public void onClick(View view) {
if (view == retryButton) {
preparePlayer(true);
}
}
// AudioCapabilitiesReceiver.Listener methods
@Override
public void onAudioCapabilitiesChanged(AudioCapabilities audioCapabilities) {
if (player == null) {
return;
}
boolean backgrounded = player.getBackgrounded();
boolean playWhenReady = player.getPlayWhenReady();
releasePlayer();
preparePlayer(playWhenReady);
player.setBackgrounded(backgrounded);
}
// Permission request listener method
@Override
public void onRequestPermissionsResult(int requestCode, String[] permissions,
int[] grantResults) {
if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
preparePlayer(true);
} else {
Toast.makeText(getApplicationContext(), R.string.storage_permission_denied,
Toast.LENGTH_LONG).show();
finish();
}
}
// Permission management methods
/**
* Checks whether it is necessary to ask for permission to read storage. If necessary, it also
* requests permission.
*
* @return true if a permission request is made. False if it is not necessary.
*/
@TargetApi(23)
private boolean maybeRequestPermission() {
if (requiresPermission(contentUri)) {
requestPermissions(new String[]{permission.READ_EXTERNAL_STORAGE}, 0);
return true;
} else {
return false;
}
}
@TargetApi(23)
private boolean requiresPermission(Uri uri) {
return Util.SDK_INT >= 23
&& Util.isLocalFileUri(uri)
&& checkSelfPermission(permission.READ_EXTERNAL_STORAGE)
!= PackageManager.PERMISSION_GRANTED;
}
// Internal methods
private DemoPlayer.RendererBuilder getRendererBuilder() {
String userAgent = Util.getUserAgent(this, "ExoPlayerDemo");
return new HlsRendererBuilder(this, userAgent, contentUri.toString());
}
private void preparePlayer(boolean playWhenReady) {
if (player == null) {
player = new DemoPlayer(getRendererBuilder());
player.addListener(this);
player.setCaptionListener(this);
player.setMetadataListener(this);
player.seekTo(playerPosition);
playerNeedsPrepare = true;
mediaController.setMediaPlayer(player.getPlayerControl());
mediaController.setEnabled(true);
eventLogger = new EventLogger();
eventLogger.startSession();
player.addListener(eventLogger);
player.setInfoListener(eventLogger);
player.setInternalErrorListener(eventLogger);
debugViewHelper = new DebugTextViewHelper(player, debugTextView);
debugViewHelper.start();
}
if (playerNeedsPrepare) {
player.prepare();
playerNeedsPrepare = false;
updateButtonVisibilities();
}
player.setSurface(surfaceView.getHolder().getSurface());
player.setPlayWhenReady(playWhenReady);
}
private void releasePlayer() {
if (player != null) {
debugViewHelper.stop();
debugViewHelper = null;
playerPosition = player.getCurrentPosition();
player.release();
player = null;
eventLogger.endSession();
eventLogger = null;
}
}
// DemoPlayer.Listener implementation
@Override
public void onStateChanged(boolean playWhenReady, int playbackState) {
if (playbackState == ExoPlayer.STATE_ENDED) {
showControls();
}
String text = "playWhenReady=" + playWhenReady + ", playbackState=";
switch (playbackState) {
case ExoPlayer.STATE_BUFFERING:
text += "buffering";
break;
case ExoPlayer.STATE_ENDED:
text += "ended";
break;
case ExoPlayer.STATE_IDLE:
text += "idle";
break;
case ExoPlayer.STATE_PREPARING:
text += "preparing";
break;
case ExoPlayer.STATE_READY:
text += "ready";
break;
default:
text += "unknown";
break;
}
playerStateTextView.setText(text);
updateButtonVisibilities();
}
@Override
public void onError(Exception e) {
String errorString = null;
if (e instanceof UnsupportedDrmException) {
// Special case DRM failures.
UnsupportedDrmException unsupportedDrmException = (UnsupportedDrmException) e;
errorString = getString(Util.SDK_INT < 18 ? R.string.error_drm_not_supported
: unsupportedDrmException.reason == UnsupportedDrmException.REASON_UNSUPPORTED_SCHEME
? R.string.error_drm_unsupported_scheme : R.string.error_drm_unknown);
} else if (e instanceof ExoPlaybackException
&& e.getCause() instanceof DecoderInitializationException) {
// Special case for decoder initialization failures.
DecoderInitializationException decoderInitializationException =
(DecoderInitializationException) e.getCause();
if (decoderInitializationException.decoderName == null) {
if (decoderInitializationException.getCause() instanceof DecoderQueryException) {
errorString = getString(R.string.error_querying_decoders);
} else if (decoderInitializationException.secureDecoderRequired) {
errorString = getString(R.string.error_no_secure_decoder,
decoderInitializationException.mimeType);
} else {
errorString = getString(R.string.error_no_decoder,
decoderInitializationException.mimeType);
}
} else {
errorString = getString(R.string.error_instantiating_decoder,
decoderInitializationException.decoderName);
}
}
if (errorString != null) {
Toast.makeText(getApplicationContext(), errorString, Toast.LENGTH_LONG).show();
}
playerNeedsPrepare = true;
updateButtonVisibilities();
showControls();
}
@Override
public void onVideoSizeChanged(int width, int height, int unappliedRotationDegrees,
float pixelWidthAspectRatio) {
shutterView.setVisibility(View.GONE);
videoFrame.setAspectRatio(
height == 0 ? 1 : (width * pixelWidthAspectRatio) / height);
}
// User controls
private void updateButtonVisibilities() {
retryButton.setVisibility(playerNeedsPrepare ? View.VISIBLE : View.GONE);
videoButton.setVisibility(haveTracks(DemoPlayer.TYPE_VIDEO) ? View.VISIBLE : View.GONE);
audioButton.setVisibility(haveTracks(DemoPlayer.TYPE_AUDIO) ? View.VISIBLE : View.GONE);
textButton.setVisibility(haveTracks(DemoPlayer.TYPE_TEXT) ? View.VISIBLE : View.GONE);
}
private boolean haveTracks(int type) {
return player != null && player.getTrackCount(type) > 0;
}
public void showVideoPopup(View v) {
PopupMenu popup = new PopupMenu(this, v);
configurePopupWithTracks(popup, null, DemoPlayer.TYPE_VIDEO);
popup.show();
}
public void showAudioPopup(View v) {
PopupMenu popup = new PopupMenu(this, v);
Menu menu = popup.getMenu();
menu.add(Menu.NONE, Menu.NONE, Menu.NONE, R.string.enable_background_audio);
final MenuItem backgroundAudioItem = menu.findItem(0);
backgroundAudioItem.setCheckable(true);
backgroundAudioItem.setChecked(enableBackgroundAudio);
OnMenuItemClickListener clickListener = new OnMenuItemClickListener() {
@Override
public boolean onMenuItemClick(MenuItem item) {
if (item == backgroundAudioItem) {
enableBackgroundAudio = !item.isChecked();
return true;
}
return false;
}
};
configurePopupWithTracks(popup, clickListener, DemoPlayer.TYPE_AUDIO);
popup.show();
}
public void showTextPopup(View v) {
PopupMenu popup = new PopupMenu(this, v);
configurePopupWithTracks(popup, null, DemoPlayer.TYPE_TEXT);
popup.show();
}
public void showVerboseLogPopup(View v) {
PopupMenu popup = new PopupMenu(this, v);
Menu menu = popup.getMenu();
menu.add(Menu.NONE, 0, Menu.NONE, R.string.logging_normal);
menu.add(Menu.NONE, 1, Menu.NONE, R.string.logging_verbose);
menu.setGroupCheckable(Menu.NONE, true, true);
menu.findItem((VerboseLogUtil.areAllTagsEnabled()) ? 1 : 0).setChecked(true);
popup.setOnMenuItemClickListener(new OnMenuItemClickListener() {
@Override
public boolean onMenuItemClick(MenuItem item) {
if (item.getItemId() == 0) {
VerboseLogUtil.setEnableAllTags(false);
} else {
VerboseLogUtil.setEnableAllTags(true);
}
return true;
}
});
popup.show();
}
private void configurePopupWithTracks(PopupMenu popup,
final OnMenuItemClickListener customActionClickListener,
final int trackType) {
if (player == null) {
return;
}
int trackCount = player.getTrackCount(trackType);
if (trackCount == 0) {
return;
}
popup.setOnMenuItemClickListener(new OnMenuItemClickListener() {
@Override
public boolean onMenuItemClick(MenuItem item) {
return (customActionClickListener != null
&& customActionClickListener.onMenuItemClick(item))
|| onTrackItemClick(item, trackType);
}
});
Menu menu = popup.getMenu();
// ID_OFFSET ensures we avoid clashing with Menu.NONE (which equals 0).
menu.add(MENU_GROUP_TRACKS, DemoPlayer.TRACK_DISABLED + ID_OFFSET, Menu.NONE, R.string.off);
for (int i = 0; i < trackCount; i++) {
menu.add(MENU_GROUP_TRACKS, i + ID_OFFSET, Menu.NONE,
buildTrackName(player.getTrackFormat(trackType, i)));
}
menu.setGroupCheckable(MENU_GROUP_TRACKS, true, true);
menu.findItem(player.getSelectedTrack(trackType) + ID_OFFSET).setChecked(true);
}
private static String buildTrackName(MediaFormat format) {
if (format.adaptive) {
return "auto";
}
String trackName;
if (MimeTypes.isVideo(format.mimeType)) {
trackName = joinWithSeparator(joinWithSeparator(buildResolutionString(format),
buildBitrateString(format)), buildTrackIdString(format));
} else if (MimeTypes.isAudio(format.mimeType)) {
trackName = joinWithSeparator(joinWithSeparator(joinWithSeparator(buildLanguageString(format),
buildAudioPropertyString(format)), buildBitrateString(format)),
buildTrackIdString(format));
} else {
trackName = joinWithSeparator(joinWithSeparator(buildLanguageString(format),
buildBitrateString(format)), buildTrackIdString(format));
}
return trackName.length() == 0 ? "unknown" : trackName;
}
private static String buildResolutionString(MediaFormat format) {
return format.width == MediaFormat.NO_VALUE || format.height == MediaFormat.NO_VALUE
? "" : format.width + "x" + format.height;
}
private static String buildAudioPropertyString(MediaFormat format) {
return format.channelCount == MediaFormat.NO_VALUE || format.sampleRate == MediaFormat.NO_VALUE
? "" : format.channelCount + "ch, " + format.sampleRate + "Hz";
}
private static String buildLanguageString(MediaFormat format) {
return TextUtils.isEmpty(format.language) || "und".equals(format.language) ? ""
: format.language;
}
private static String buildBitrateString(MediaFormat format) {
return format.bitrate == MediaFormat.NO_VALUE ? ""
: String.format(Locale.US, "%.2fMbit", format.bitrate / 1000000f);
}
private static String joinWithSeparator(String first, String second) {
return first.length() == 0 ? second : (second.length() == 0 ? first : first + ", " + second);
}
private static String buildTrackIdString(MediaFormat format) {
return format.trackId == null ? "" : " (" + format.trackId + ")";
}
private boolean onTrackItemClick(MenuItem item, int type) {
if (player == null || item.getGroupId() != MENU_GROUP_TRACKS) {
return false;
}
player.setSelectedTrack(type, item.getItemId() - ID_OFFSET);
return true;
}
private void toggleControlsVisibility() {
if (mediaController.isShowing()) {
mediaController.hide();
debugRootView.setVisibility(View.GONE);
} else {
showControls();
}
}
private void showControls() {
mediaController.show(0);
debugRootView.setVisibility(View.VISIBLE);
}
// DemoPlayer.CaptionListener implementation
@Override
public void onCues(List<Cue> cues) {
subtitleLayout.setCues(cues);
}
// DemoPlayer.MetadataListener implementation
@Override
public void onId3Metadata(List<Id3Frame> id3Frames) {
for (Id3Frame id3Frame : id3Frames) {
if (id3Frame instanceof TxxxFrame) {
TxxxFrame txxxFrame = (TxxxFrame) id3Frame;
Log.i(TAG, String.format("ID3 TimedMetadata %s: description=%s, value=%s", txxxFrame.id,
txxxFrame.description, txxxFrame.value));
} else if (id3Frame instanceof PrivFrame) {
PrivFrame privFrame = (PrivFrame) id3Frame;
Log.i(TAG, String.format("ID3 TimedMetadata %s: owner=%s", privFrame.id, privFrame.owner));
} else if (id3Frame instanceof GeobFrame) {
GeobFrame geobFrame = (GeobFrame) id3Frame;
Log.i(TAG, String.format("ID3 TimedMetadata %s: mimeType=%s, filename=%s, description=%s",
geobFrame.id, geobFrame.mimeType, geobFrame.filename, geobFrame.description));
} else {
Log.i(TAG, String.format("ID3 TimedMetadata %s", id3Frame.id));
}
}
}
// SurfaceHolder.Callback implementation
@Override
public void surfaceCreated(SurfaceHolder holder) {
if (player != null) {
player.setSurface(holder.getSurface());
}
}
@Override
public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
// Do nothing.
}
@Override
public void surfaceDestroyed(SurfaceHolder holder) {
if (player != null) {
player.blockingClearSurface();
}
}
private void configureSubtitleView() {
CaptionStyleCompat style;
float fontScale;
if (Util.SDK_INT >= 19) {
style = getUserCaptionStyleV19();
fontScale = getUserCaptionFontScaleV19();
} else {
style = CaptionStyleCompat.DEFAULT;
fontScale = 1.0f;
}
subtitleLayout.setStyle(style);
subtitleLayout.setFractionalTextSize(SubtitleLayout.DEFAULT_TEXT_SIZE_FRACTION * fontScale);
}
@TargetApi(19)
private float getUserCaptionFontScaleV19() {
CaptioningManager captioningManager =
(CaptioningManager) getSystemService(Context.CAPTIONING_SERVICE);
return captioningManager.getFontScale();
}
@TargetApi(19)
private CaptionStyleCompat getUserCaptionStyleV19() {
CaptioningManager captioningManager =
(CaptioningManager) getSystemService(Context.CAPTIONING_SERVICE);
return CaptionStyleCompat.createFromCaptionStyle(captioningManager.getUserStyle());
}
/**
* Makes a best guess to infer the type from a media {@link Uri} and an optional overriding file
* extension.
*
* @param uri The {@link Uri} of the media.
* @param fileExtension An overriding file extension.
* @return The inferred type.
*/
private static int inferContentType(Uri uri, String fileExtension) {
String lastPathSegment = !TextUtils.isEmpty(fileExtension) ? "." + fileExtension
: uri.getLastPathSegment();
return Util.inferContentType(lastPathSegment);
}
private static final class KeyCompatibleMediaController extends MediaController {
private MediaPlayerControl playerControl;
public KeyCompatibleMediaController(Context context) {
super(context);
}
@Override
public void setMediaPlayer(MediaPlayerControl playerControl) {
super.setMediaPlayer(playerControl);
this.playerControl = playerControl;
}
@Override
public boolean dispatchKeyEvent(KeyEvent event) {
int keyCode = event.getKeyCode();
if (playerControl.canSeekForward() && keyCode == KeyEvent.KEYCODE_MEDIA_FAST_FORWARD) {
if (event.getAction() == KeyEvent.ACTION_DOWN) {
playerControl.seekTo(playerControl.getCurrentPosition() + 15000); // milliseconds
show();
}
return true;
} else if (playerControl.canSeekBackward() && keyCode == KeyEvent.KEYCODE_MEDIA_REWIND) {
if (event.getAction() == KeyEvent.ACTION_DOWN) {
playerControl.seekTo(playerControl.getCurrentPosition() - 5000); // milliseconds
show();
}
return true;
}
return super.dispatchKeyEvent(event);
}
}
}
