| /* |
| * 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.tuner.source; |
| |
| import com.android.tv.common.compat.TvInputConstantCompat; |
| import com.google.android.exoplayer.upstream.DataSource; |
| |
| /** {@link DataSource} for MPEG-TS stream, which will be used by {@link TsExtractor}. */ |
| public abstract class TsDataSource implements DataSource { |
| |
| /** |
| * Returns the number of bytes being buffered by {@link TsStreamer} so far. |
| * |
| * @return the buffered position |
| */ |
| public long getBufferedPosition() { |
| return 0; |
| } |
| |
| /** |
| * Returns the offset position where the last {@link DataSource#read} read. |
| * |
| * @return the last read position |
| */ |
| public long getLastReadPosition() { |
| return 0; |
| } |
| |
| /** |
| * Shifts start position by the specified offset. Do not call this method when the class already |
| * provided MPEG-TS stream to the extractor. |
| * |
| * @param offset 0 <= offset <= buffered position |
| */ |
| public void shiftStartPosition(long offset) {} |
| |
| public int getSignalStrength() { |
| return TvInputConstantCompat.SIGNAL_STRENGTH_NOT_USED; |
| } |
| } |