1 files changed, 130 insertions, 0 deletions
diff --git a/tuner/src/com/android/tv/tuner/tvinput/BaseTunerTvInputService.java b/tuner/src/com/android/tv/tuner/tvinput/BaseTunerTvInputService.java
new file mode 100644
index 00000000..e577e35e
--- /dev/null
+++ b/tuner/src/com/android/tv/tuner/tvinput/BaseTunerTvInputService.java
@@ -0,0 +1,130 @@
+/*
+ * Copyright (C) 2015 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.tuner.tvinput;
+
+import android.app.job.JobInfo;
+import android.app.job.JobScheduler;
+import android.content.ComponentName;
+import android.content.Context;
+import android.media.tv.TvInputService;
+import android.util.Log;
+import com.android.tv.common.feature.CommonFeatures;
+import com.google.android.exoplayer.audio.AudioCapabilities;
+import com.google.android.exoplayer.audio.AudioCapabilitiesReceiver;
+import java.util.Collections;
+import java.util.Set;
+import java.util.WeakHashMap;
+import java.util.concurrent.TimeUnit;
+
+/** {@link BaseTunerTvInputService} serves TV channels coming from a tuner device. */
+public class BaseTunerTvInputService extends TvInputService
+        implements AudioCapabilitiesReceiver.Listener {
+    private static final String TAG = "BaseTunerTvInputService";
+    private static final boolean DEBUG = false;
+
+    private static final int DVR_STORAGE_CLEANUP_JOB_ID = 100;
+
+    // WeakContainer for {@link TvInputSessionImpl}
+    private final Set<TunerSession> mTunerSessions = Collections.newSetFromMap(new WeakHashMap<>());
+    private ChannelDataManager mChannelDataManager;
+    private AudioCapabilitiesReceiver mAudioCapabilitiesReceiver;
+    private AudioCapabilities mAudioCapabilities;
+
+    @Override
+    public void onCreate() {
+        if (getApplicationContext().getSystemService(Context.TV_INPUT_SERVICE) == null) {
+            Log.wtf(TAG, "Stopping because device does not have a TvInputManager");
+            this.stopSelf();
+            return;
+        }
+        super.onCreate();
+        if (DEBUG) Log.d(TAG, "onCreate");
+        mChannelDataManager = new ChannelDataManager(getApplicationContext());
+        mAudioCapabilitiesReceiver = new AudioCapabilitiesReceiver(getApplicationContext(), this);
+        mAudioCapabilitiesReceiver.register();
+        if (CommonFeatures.DVR.isEnabled(this)) {
+            JobScheduler jobScheduler =
+                    (JobScheduler) getSystemService(Context.JOB_SCHEDULER_SERVICE);
+            JobInfo pendingJob = jobScheduler.getPendingJob(DVR_STORAGE_CLEANUP_JOB_ID);
+            if (pendingJob != null) {
+                // storage cleaning job is already scheduled.
+            } else {
+                JobInfo job =
+                        new JobInfo.Builder(
+                                        DVR_STORAGE_CLEANUP_JOB_ID,
+                                        new ComponentName(this, TunerStorageCleanUpService.class))
+                                .setPersisted(true)
+                                .setPeriodic(TimeUnit.DAYS.toMillis(1))
+                                .build();
+                jobScheduler.schedule(job);
+            }
+        }
+    }
+
+    @Override
+    public void onDestroy() {
+        if (DEBUG) Log.d(TAG, "onDestroy");
+        super.onDestroy();
+        mChannelDataManager.release();
+        mAudioCapabilitiesReceiver.unregister();
+    }
+
+    @Override
+    public RecordingSession onCreateRecordingSession(String inputId) {
+        return new TunerRecordingSession(this, inputId, mChannelDataManager);
+    }
+
+    @Override
+    public Session onCreateSession(String inputId) {
+        if (DEBUG) Log.d(TAG, "onCreateSession");
+        try {
+            // TODO(b/65445352): Support multiple TunerSessions for multiple tuners
+            if (!allSessionsReleased()) {
+                Log.d(TAG, "abort creating an session");
+                return null;
+            }
+            final TunerSession session = new TunerSession(this, mChannelDataManager);
+            mTunerSessions.add(session);
+            session.setAudioCapabilities(mAudioCapabilities);
+            session.setOverlayViewEnabled(true);
+            return session;
+        } catch (RuntimeException e) {
+            // There are no available DVB devices.
+            Log.e(TAG, "Creating a session for " + inputId + " failed.", e);
+            return null;
+        }
+    }
+
+    @Override
+    public void onAudioCapabilitiesChanged(AudioCapabilities audioCapabilities) {
+        mAudioCapabilities = audioCapabilities;
+        for (TunerSession session : mTunerSessions) {
+            if (!session.isReleased()) {
+                session.setAudioCapabilities(audioCapabilities);
+            }
+        }
+    }
+
+    private boolean allSessionsReleased() {
+        for (TunerSession session : mTunerSessions) {
+            if (!session.isReleased()) {
+                return false;
+            }
+        }
+        return true;
+    }
+}