1 /* 2 * Copyright (C) 2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.tv.tuner.source; 18 19 import com.android.tv.tuner.ChannelScanFileParser; 20 import com.android.tv.tuner.data.TunerChannel; 21 22 /** 23 * Interface definition for a stream generator. The interface will provide streams for scanning 24 * channels and/or playback. 25 */ 26 public interface TsStreamer { 27 /** 28 * Starts streaming the data for channel scanning process. 29 * 30 * @param channel {@link ChannelScanFileParser.ScanChannel} to be scanned 31 * @return {@code true} if ready to stream, otherwise {@code false} 32 */ 33 boolean startStream(ChannelScanFileParser.ScanChannel channel); 34 35 /** 36 * Starts streaming the data for channel playing or recording. 37 * 38 * @param channel {@link TunerChannel} to tune 39 * @return {@code true} if ready to stream, otherwise {@code false} 40 */ 41 boolean startStream(TunerChannel channel); 42 43 /** Stops streaming the data. */ 44 void stopStream(); 45 46 /** 47 * Creates {@link TsDataSource} which will provide MPEG-2 TS stream for {@link 48 * android.media.MediaExtractor}. The source will start from the position where it is created. 49 * 50 * @return {@link TsDataSource} 51 */ 52 TsDataSource createDataSource(); 53 } 54
