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Diffstat (limited to 'src/com/android/tv/dvr/ui/playback/DvrPlaybackMediaSessionHelper.java')
-rw-r--r--src/com/android/tv/dvr/ui/playback/DvrPlaybackMediaSessionHelper.java335
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diff --git a/src/com/android/tv/dvr/ui/playback/DvrPlaybackMediaSessionHelper.java b/src/com/android/tv/dvr/ui/playback/DvrPlaybackMediaSessionHelper.java
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+++ b/src/com/android/tv/dvr/ui/playback/DvrPlaybackMediaSessionHelper.java
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+/*
+ * Copyright (C) 2016 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.android.tv.dvr.ui.playback;
+
+import android.app.Activity;
+import android.content.Intent;
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+import android.media.MediaMetadata;
+import android.media.session.MediaController;
+import android.media.session.MediaSession;
+import android.media.session.PlaybackState;
+import android.media.tv.TvContract;
+import android.os.AsyncTask;
+import android.support.annotation.Nullable;
+import android.text.TextUtils;
+
+import com.android.tv.R;
+import com.android.tv.TvApplication;
+import com.android.tv.common.SoftPreconditions;
+import com.android.tv.data.Channel;
+import com.android.tv.data.ChannelDataManager;
+import com.android.tv.dvr.DvrWatchedPositionManager;
+import com.android.tv.dvr.data.RecordedProgram;
+import com.android.tv.util.ImageLoader;
+import com.android.tv.util.TimeShiftUtils;
+import com.android.tv.util.Utils;
+
+class DvrPlaybackMediaSessionHelper {
+ private static final String TAG = "DvrPlaybackMediaSessionHelper";
+ private static final boolean DEBUG = false;
+
+ private int mNowPlayingCardWidth;
+ private int mNowPlayingCardHeight;
+ private int mSpeedLevel;
+ private long mProgramDurationMs;
+
+ private Activity mActivity;
+ private DvrPlayer mDvrPlayer;
+ private MediaSession mMediaSession;
+ private final DvrWatchedPositionManager mDvrWatchedPositionManager;
+ private final ChannelDataManager mChannelDataManager;
+
+ public DvrPlaybackMediaSessionHelper(Activity activity, String mediaSessionTag,
+ DvrPlayer dvrPlayer, DvrPlaybackOverlayFragment overlayFragment) {
+ mActivity = activity;
+ mDvrPlayer = dvrPlayer;
+ mDvrWatchedPositionManager =
+ TvApplication.getSingletons(activity).getDvrWatchedPositionManager();
+ mChannelDataManager = TvApplication.getSingletons(activity).getChannelDataManager();
+ mDvrPlayer.setCallback(new DvrPlayer.DvrPlayerCallback() {
+ @Override
+ public void onPlaybackStateChanged(int playbackState, int playbackSpeed) {
+ updateMediaSessionPlaybackState();
+ }
+
+ @Override
+ public void onPlaybackPositionChanged(long positionMs) {
+ updateMediaSessionPlaybackState();
+ if (mDvrPlayer.isPlaybackPrepared()) {
+ mDvrWatchedPositionManager
+ .setWatchedPosition(mDvrPlayer.getProgram().getId(), positionMs);
+ }
+ }
+
+ @Override
+ public void onPlaybackEnded() {
+ // TODO: Deal with watched over recordings in DVR library
+ RecordedProgram nextEpisode =
+ overlayFragment.getNextEpisode(mDvrPlayer.getProgram());
+ if (nextEpisode == null) {
+ mDvrPlayer.reset();
+ mActivity.finish();
+ } else {
+ Intent intent = new Intent(activity, DvrPlaybackActivity.class);
+ intent.putExtra(Utils.EXTRA_KEY_RECORDED_PROGRAM_ID, nextEpisode.getId());
+ mActivity.startActivity(intent);
+ }
+ }
+ });
+ initializeMediaSession(mediaSessionTag);
+ }
+
+ /**
+ * Stops DVR player and release media session.
+ */
+ public void release() {
+ if (mDvrPlayer != null) {
+ mDvrPlayer.reset();
+ }
+ if (mMediaSession != null) {
+ mMediaSession.release();
+ mMediaSession = null;
+ }
+ }
+
+ /**
+ * Updates media session's playback state and speed.
+ */
+ public void updateMediaSessionPlaybackState() {
+ mMediaSession.setPlaybackState(new PlaybackState.Builder()
+ .setState(mDvrPlayer.getPlaybackState(), mDvrPlayer.getPlaybackPosition(),
+ mSpeedLevel).build());
+ }
+
+ /**
+ * Sets the recorded program for playback.
+ *
+ * @param program The recorded program to play. {@code null} to reset the DVR player.
+ */
+ public void setupPlayback(RecordedProgram program, long seekPositionMs) {
+ if (program != null) {
+ mDvrPlayer.setProgram(program, seekPositionMs);
+ setupMediaSession(program);
+ } else {
+ mDvrPlayer.reset();
+ mMediaSession.setActive(false);
+ }
+ }
+
+ /**
+ * Returns the recorded program now playing.
+ */
+ public RecordedProgram getProgram() {
+ return mDvrPlayer.getProgram();
+ }
+
+ /**
+ * Checks if the recorded program is the same as now playing one.
+ */
+ public boolean isCurrentProgram(RecordedProgram program) {
+ return program != null && program.equals(getProgram());
+ }
+
+ /**
+ * Returns playback state.
+ */
+ public int getPlaybackState() {
+ return mDvrPlayer.getPlaybackState();
+ }
+
+ /**
+ * Returns the underlying DVR player.
+ */
+ public DvrPlayer getDvrPlayer() {
+ return mDvrPlayer;
+ }
+
+ private void initializeMediaSession(String mediaSessionTag) {
+ mMediaSession = new MediaSession(mActivity, mediaSessionTag);
+ mMediaSession.setFlags(MediaSession.FLAG_HANDLES_MEDIA_BUTTONS
+ | MediaSession.FLAG_HANDLES_TRANSPORT_CONTROLS);
+ mNowPlayingCardWidth = mActivity.getResources()
+ .getDimensionPixelSize(R.dimen.notif_card_img_max_width);
+ mNowPlayingCardHeight = mActivity.getResources()
+ .getDimensionPixelSize(R.dimen.notif_card_img_height);
+ mMediaSession.setCallback(new MediaSessionCallback());
+ mActivity.setMediaController(
+ new MediaController(mActivity, mMediaSession.getSessionToken()));
+ updateMediaSessionPlaybackState();
+ }
+
+ private void setupMediaSession(RecordedProgram program) {
+ mProgramDurationMs = program.getDurationMillis();
+ String cardTitleText = program.getTitle();
+ if (TextUtils.isEmpty(cardTitleText)) {
+ Channel channel = mChannelDataManager.getChannel(program.getChannelId());
+ cardTitleText = (channel != null) ? channel.getDisplayName()
+ : mActivity.getString(R.string.no_program_information);
+ }
+ final MediaMetadata currentMetadata = updateMetadataTextInfo(program.getId(), cardTitleText,
+ program.getDescription(), mProgramDurationMs);
+ String posterArtUri = program.getPosterArtUri();
+ if (posterArtUri == null) {
+ posterArtUri = TvContract.buildChannelLogoUri(program.getChannelId()).toString();
+ }
+ updatePosterArt(program, currentMetadata, null, posterArtUri);
+ mMediaSession.setActive(true);
+ }
+
+ private void updatePosterArt(RecordedProgram program, MediaMetadata currentMetadata,
+ @Nullable Bitmap posterArt, @Nullable String posterArtUri) {
+ if (posterArt != null) {
+ updateMetadataImageInfo(program, currentMetadata, posterArt, 0);
+ } else if (posterArtUri != null) {
+ ImageLoader.loadBitmap(mActivity, posterArtUri, mNowPlayingCardWidth,
+ mNowPlayingCardHeight,
+ new ProgramPosterArtCallback(mActivity, program, currentMetadata));
+ } else {
+ updateMetadataImageInfo(program, currentMetadata, null, R.drawable.default_now_card);
+ }
+ }
+
+ private class ProgramPosterArtCallback extends
+ ImageLoader.ImageLoaderCallback<Activity> {
+ private final RecordedProgram mRecordedProgram;
+ private final MediaMetadata mCurrentMetadata;
+
+ public ProgramPosterArtCallback(Activity activity, RecordedProgram program,
+ MediaMetadata metadata) {
+ super(activity);
+ mRecordedProgram = program;
+ mCurrentMetadata = metadata;
+ }
+
+ @Override
+ public void onBitmapLoaded(Activity activity, @Nullable Bitmap posterArt) {
+ if (isCurrentProgram(mRecordedProgram)) {
+ updatePosterArt(mRecordedProgram, mCurrentMetadata, posterArt, null);
+ }
+ }
+ }
+
+ private MediaMetadata updateMetadataTextInfo(final long programId, final String title,
+ final String subtitle, final long duration) {
+ MediaMetadata.Builder builder = new MediaMetadata.Builder();
+ builder.putString(MediaMetadata.METADATA_KEY_MEDIA_ID, Long.toString(programId))
+ .putString(MediaMetadata.METADATA_KEY_TITLE, title)
+ .putLong(MediaMetadata.METADATA_KEY_DURATION, duration);
+ if (subtitle != null) {
+ builder.putString(MediaMetadata.METADATA_KEY_DISPLAY_SUBTITLE, subtitle);
+ }
+ MediaMetadata metadata = builder.build();
+ mMediaSession.setMetadata(metadata);
+ return metadata;
+ }
+
+ private void updateMetadataImageInfo(final RecordedProgram program,
+ final MediaMetadata currentMetadata, final Bitmap posterArt, final int imageResId) {
+ if (mMediaSession != null && (posterArt != null || imageResId != 0)) {
+ MediaMetadata.Builder builder = new MediaMetadata.Builder(currentMetadata);
+ if (posterArt != null) {
+ builder.putBitmap(MediaMetadata.METADATA_KEY_ART, posterArt);
+ mMediaSession.setMetadata(builder.build());
+ } else {
+ new AsyncTask<Void, Void, Bitmap>() {
+ @Override
+ protected Bitmap doInBackground(Void... arg0) {
+ return BitmapFactory.decodeResource(mActivity.getResources(), imageResId);
+ }
+
+ @Override
+ protected void onPostExecute(Bitmap programPosterArt) {
+ if (mMediaSession != null && programPosterArt != null
+ && isCurrentProgram(program)) {
+ builder.putBitmap(MediaMetadata.METADATA_KEY_ART, programPosterArt);
+ mMediaSession.setMetadata(builder.build());
+ }
+ }
+ }.execute();
+ }
+ }
+ }
+
+ // An event was triggered by MediaController.TransportControls and must be handled here.
+ // Here we update the media itself to act on the event that was triggered.
+ private class MediaSessionCallback extends MediaSession.Callback {
+ @Override
+ public void onPrepare() {
+ if (!mDvrPlayer.isPlaybackPrepared()) {
+ mDvrPlayer.prepare(true);
+ }
+ }
+
+ @Override
+ public void onPlay() {
+ if (mDvrPlayer.isPlaybackPrepared()) {
+ mDvrPlayer.play();
+ }
+ }
+
+ @Override
+ public void onPause() {
+ if (mDvrPlayer.isPlaybackPrepared()) {
+ mDvrPlayer.pause();
+ }
+ }
+
+ @Override
+ public void onFastForward() {
+ if (!mDvrPlayer.isPlaybackPrepared()) {
+ return;
+ }
+ if (mDvrPlayer.getPlaybackState() == PlaybackState.STATE_FAST_FORWARDING) {
+ if (mSpeedLevel < TimeShiftUtils.MAX_SPEED_LEVEL) {
+ mSpeedLevel++;
+ } else {
+ return;
+ }
+ } else {
+ mSpeedLevel = 0;
+ }
+ mDvrPlayer.fastForward(
+ TimeShiftUtils.getPlaybackSpeed(mSpeedLevel, mProgramDurationMs));
+ }
+
+ @Override
+ public void onRewind() {
+ if (!mDvrPlayer.isPlaybackPrepared()) {
+ return;
+ }
+ if (mDvrPlayer.getPlaybackState() == PlaybackState.STATE_REWINDING) {
+ if (mSpeedLevel < TimeShiftUtils.MAX_SPEED_LEVEL) {
+ mSpeedLevel++;
+ } else {
+ return;
+ }
+ } else {
+ mSpeedLevel = 0;
+ }
+ mDvrPlayer.rewind(TimeShiftUtils.getPlaybackSpeed(mSpeedLevel, mProgramDurationMs));
+ }
+
+ @Override
+ public void onSeekTo(long positionMs) {
+ if (mDvrPlayer.isPlaybackPrepared()) {
+ mDvrPlayer.seekTo(positionMs);
+ }
+ }
+ }
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-02 00:46:17 +0000