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/*
* 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.usbtuner.tvinput;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.media.tv.TvInputHardwareInfo;
import android.media.tv.TvInputInfo;
import android.os.Environment;
import android.util.Log;
import com.android.usbtuner.exoplayer.CacheManager;
import com.android.usbtuner.exoplayer.TrickplayStorageManager;
import com.android.usbtuner.util.SystemPropertiesProxy;
import com.android.usbtuner.util.TisConfiguration;
import org.xmlpull.v1.XmlPullParserException;
import java.io.File;
import java.io.IOException;
/**
* {@link InternalTunerTvInputService} serves TV channels coming from a internal tuner device.
*/
public class InternalTunerTvInputService extends BaseTunerTvInputService {
private static final String TAG = "InternalTunerTvInputService";
private static final boolean DEBUG = false;
private static final String MAX_CACHE_SIZE_KEY = "usbtuner.cachesize_mbytes";
private static final int MAX_CACHE_SIZE_DEF = 2 * 1024; // 2GB
private static final int MIN_CACHE_SIZE_DEF = 256; // 256MB
private ResolveInfo mResolveInfo;
private String mTvInputId;
@Override
public void onCreate() {
super.onCreate();
mResolveInfo = getPackageManager().resolveService(
new Intent(SERVICE_INTERFACE).setClass(this, getClass()),
PackageManager.GET_SERVICES | PackageManager.GET_META_DATA);
}
@Override
protected void maybeInitCacheManager() {
int maxCacheSizeMb = SystemPropertiesProxy.getInt(MAX_CACHE_SIZE_KEY, MAX_CACHE_SIZE_DEF);
if (maxCacheSizeMb >= MIN_CACHE_SIZE_DEF) {
boolean useExternalStorage = Environment.MEDIA_MOUNTED.equals(
Environment.getExternalStorageState()) &&
Environment.isExternalStorageRemovable();
if (DEBUG) Log.d(TAG, "useExternalStorage for trickplay: " + useExternalStorage);
boolean allowToUseInternalStorage = true;
if (useExternalStorage || allowToUseInternalStorage) {
File baseDir = useExternalStorage ? getExternalCacheDir() : getCacheDir();
mCacheManager = new CacheManager(
new TrickplayStorageManager(getApplicationContext(), baseDir,
1024L * 1024 * maxCacheSizeMb));
}
}
}
@Override
public TvInputInfo onHardwareAdded(TvInputHardwareInfo hardwareInfo) {
if (DEBUG) Log.d(TAG, "onHardwareAdded: " + hardwareInfo.toString());
if (mTvInputId != null) {
return null;
}
TvInputInfo info = null;
if (hardwareInfo.getType() == TvInputHardwareInfo.TV_INPUT_TYPE_TUNER &&
TisConfiguration.getTunerHwDeviceId(this) == hardwareInfo.getDeviceId()) {
try {
info = TvInputInfo.createTvInputInfo(this, mResolveInfo, hardwareInfo,
"Google Tuner", null);
mTvInputId = info.getId();
} catch (XmlPullParserException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
return info;
}
@Override
public String onHardwareRemoved(TvInputHardwareInfo hardwareInfo) {
if (DEBUG) Log.d(TAG, "onHardwareRemoved: " + hardwareInfo.toString());
return null;
}
}
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