package io.github.droidkaigi.confsched.activity;
import android.annotation.TargetApi;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.text.TextUtils;
import android.util.Log;
import android.view.KeyEvent;
import android.view.MotionEvent;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.View;
import android.view.accessibility.CaptioningManager;
import android.widget.MediaController;
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.audio.AudioCapabilities;
import com.google.android.exoplayer.audio.AudioCapabilitiesReceiver;
import com.google.android.exoplayer.drm.UnsupportedDrmException;
import com.google.android.exoplayer.metadata.id3.ApicFrame;
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.TextInformationFrame;
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.Util;
import java.net.CookieHandler;
import java.net.CookieManager;
import java.net.CookiePolicy;
import java.util.List;
import io.github.droidkaigi.confsched.R;
import io.github.droidkaigi.confsched.player.DashRendererBuilder;
import io.github.droidkaigi.confsched.player.DemoPlayer;
/**
* An activity that plays media using {@link DemoPlayer}.
*/
public class VideoPlayerActivity extends Activity implements SurfaceHolder.Callback,
DemoPlayer.Listener, DemoPlayer.CaptionListener, DemoPlayer.Id3MetadataListener,
AudioCapabilitiesReceiver.Listener {
private static final String CONTENT_TYPE_EXTRA = "content_type";
private static final String CONTENT_EXT_EXTRA = "type";
private static final String TAG = "PlayerActivity";
private static final CookieManager defaultCookieManager;
static {
defaultCookieManager = new CookieManager();
defaultCookieManager.setCookiePolicy(CookiePolicy.ACCEPT_ORIGINAL_SERVER);
}
private MediaController mediaController;
private View shutterView;
private AspectRatioFrameLayout videoFrame;
private SurfaceView surfaceView;
private SubtitleLayout subtitleLayout;
private DemoPlayer player;
private boolean playerNeedsPrepare;
private long playerPosition;
private boolean enableBackgroundAudio;
private Uri contentUri;
private int contentType;
private AudioCapabilitiesReceiver audioCapabilitiesReceiver;
public static Intent createIntent(Context context, String uri) {
return new Intent(context, VideoPlayerActivity.class)
.setData(Uri.parse(uri))
.putExtra(CONTENT_TYPE_EXTRA, Util.TYPE_DASH);
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_video_player);
View root = findViewById(R.id.root);
root.setOnTouchListener((view, motionEvent) -> {
if (motionEvent.getAction() == MotionEvent.ACTION_DOWN) {
toggleControlsVisibility();
} else if (motionEvent.getAction() == MotionEvent.ACTION_UP) {
view.performClick();
}
return true;
});
root.setOnKeyListener((v, keyCode, event) -> !(keyCode == KeyEvent.KEYCODE_BACK || keyCode == KeyEvent.KEYCODE_ESCAPE
|| keyCode == KeyEvent.KEYCODE_MENU) && mediaController.dispatchKeyEvent(event));
shutterView = findViewById(R.id.shutter);
videoFrame = (AspectRatioFrameLayout) findViewById(R.id.video_frame);
surfaceView = (SurfaceView) findViewById(R.id.surface_view);
surfaceView.getHolder().addCallback(this);
subtitleLayout = (SubtitleLayout) findViewById(R.id.subtitles);
mediaController = new KeyCompatibleMediaController(this);
mediaController.setAnchorView(root);
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 onStart() {
super.onStart();
if (Util.SDK_INT > 23) {
onShown();
}
}
@Override
public void onResume() {
super.onResume();
if (Util.SDK_INT <= 23 || player == null) {
onShown();
}
}
private void onShown() {
Intent intent = getIntent();
contentUri = intent.getData();
contentType = intent.getIntExtra(CONTENT_TYPE_EXTRA,
inferContentType(contentUri, intent.getStringExtra(CONTENT_EXT_EXTRA)));
configureSubtitleView();
if (player == null) {
preparePlayer(true);
} else {
player.setBackgrounded(false);
}
}
@Override
public void onPause() {
super.onPause();
if (Util.SDK_INT <= 23) {
onHidden();
}
}
@Override
public void onStop() {
super.onStop();
if (Util.SDK_INT > 23) {
onHidden();
}
}
private void onHidden() {
if (!enableBackgroundAudio) {
releasePlayer();
} else {
player.setBackgrounded(true);
}
shutterView.setVisibility(View.VISIBLE);
}
@Override
public void onDestroy() {
super.onDestroy();
audioCapabilitiesReceiver.unregister();
releasePlayer();
}
@Override
public void onAudioCapabilitiesChanged(AudioCapabilities audioCapabilities) {
if (player == null) {
return;
}
boolean backgrounded = player.getBackgrounded();
boolean playWhenReady = player.getPlayWhenReady();
releasePlayer();
preparePlayer(playWhenReady);
player.setBackgrounded(backgrounded);
}
private DemoPlayer.RendererBuilder getRendererBuilder() {
String userAgent = Util.getUserAgent(this, "ExoPlayerDemo");
switch (contentType) {
case Util.TYPE_DASH:
return new DashRendererBuilder(this, userAgent, contentUri.toString());
default:
throw new IllegalStateException("Unsupported type: " + contentType);
}
}
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);
}
if (playerNeedsPrepare) {
player.prepare();
playerNeedsPrepare = false;
}
player.setSurface(surfaceView.getHolder().getSurface());
player.setPlayWhenReady(playWhenReady);
}
private void releasePlayer() {
if (player != null) {
playerPosition = player.getCurrentPosition();
player.release();
player = 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;
}
Log.d(TAG, text);
}
@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.video_error_drm_not_supported
: unsupportedDrmException.reason == UnsupportedDrmException.REASON_UNSUPPORTED_SCHEME
? R.string.video_error_drm_unsupported_scheme : R.string.video_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.video_error_querying_decoders);
} else if (decoderInitializationException.secureDecoderRequired) {
errorString = getString(R.string.video_error_no_secure_decoder,
decoderInitializationException.mimeType);
} else {
errorString = getString(R.string.video_error_no_decoder,
decoderInitializationException.mimeType);
}
} else {
errorString = getString(R.string.video_error_instantiating_decoder,
decoderInitializationException.decoderName);
}
}
if (errorString != null) {
Toast.makeText(getApplicationContext(), errorString, Toast.LENGTH_LONG).show();
}
playerNeedsPrepare = true;
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);
}
private void toggleControlsVisibility() {
if (mediaController.isShowing()) {
mediaController.hide();
} else {
showControls();
}
}
private void showControls() {
mediaController.show(0);
}
// 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 if (id3Frame instanceof ApicFrame) {
ApicFrame apicFrame = (ApicFrame) id3Frame;
Log.i(TAG, String.format("ID3 TimedMetadata %s: mimeType=%s, description=%s",
apicFrame.id, apicFrame.mimeType, apicFrame.description));
} else if (id3Frame instanceof TextInformationFrame) {
TextInformationFrame textInformationFrame = (TextInformationFrame) id3Frame;
Log.i(TAG, String.format("ID3 TimedMetadata %s: description=%s", textInformationFrame.id,
textInformationFrame.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
|| keyCode == KeyEvent.KEYCODE_DPAD_RIGHT)) {
if (event.getAction() == KeyEvent.ACTION_DOWN) {
playerControl.seekTo(playerControl.getCurrentPosition() + 15000); // milliseconds
show();
}
return true;
} else if (playerControl.canSeekBackward() && (keyCode == KeyEvent.KEYCODE_MEDIA_REWIND
|| keyCode == KeyEvent.KEYCODE_DPAD_LEFT)) {
if (event.getAction() == KeyEvent.ACTION_DOWN) {
playerControl.seekTo(playerControl.getCurrentPosition() - 5000); // milliseconds
show();
}
return true;
}
return super.dispatchKeyEvent(event);
}
}
}