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.exoplayer; 18 19 import android.content.Context; 20 21 import com.google.android.exoplayer.SampleSource; 22 import com.google.android.exoplayer.TrackRenderer; 23 import com.google.android.exoplayer.upstream.DataSource; 24 import com.android.tv.tuner.exoplayer.MpegTsPlayer.RendererBuilder; 25 import com.android.tv.tuner.exoplayer.MpegTsPlayer.RendererBuilderCallback; 26 import com.android.tv.tuner.exoplayer.ac3.Ac3PassthroughTrackRenderer; 27 import com.android.tv.tuner.exoplayer.buffer.BufferManager; 28 import com.android.tv.tuner.tvinput.PlaybackBufferListener; 29 30 /** 31 * Builder for renderer objects for {@link MpegTsPlayer}. 32 */ 33 public class MpegTsRendererBuilder implements RendererBuilder { 34 private final Context mContext; 35 private final BufferManager mBufferManager; 36 private final PlaybackBufferListener mBufferListener; 37 MpegTsRendererBuilder(Context context, BufferManager bufferManager, PlaybackBufferListener bufferListener)38 public MpegTsRendererBuilder(Context context, BufferManager bufferManager, 39 PlaybackBufferListener bufferListener) { 40 mContext = context; 41 mBufferManager = bufferManager; 42 mBufferListener = bufferListener; 43 } 44 45 @Override buildRenderers(MpegTsPlayer mpegTsPlayer, DataSource dataSource, RendererBuilderCallback callback)46 public void buildRenderers(MpegTsPlayer mpegTsPlayer, DataSource dataSource, 47 RendererBuilderCallback callback) { 48 // Build the video and audio renderers. 49 SampleExtractor extractor = dataSource == null ? 50 new MpegTsSampleExtractor(mBufferManager, mBufferListener) : 51 new MpegTsSampleExtractor(dataSource, mBufferManager, mBufferListener); 52 SampleSource sampleSource = new MpegTsSampleSource(extractor); 53 MpegTsVideoTrackRenderer videoRenderer = new MpegTsVideoTrackRenderer(mContext, 54 sampleSource, mpegTsPlayer.getMainHandler(), mpegTsPlayer); 55 // TODO: Only using Ac3PassthroughTrackRenderer for A/V sync issue. We will use 56 // {@link Ac3TrackRenderer} when we use ExoPlayer's extractor. 57 TrackRenderer audioRenderer = new Ac3PassthroughTrackRenderer(sampleSource, 58 mpegTsPlayer.getMainHandler(), mpegTsPlayer); 59 Cea708TextTrackRenderer textRenderer = new Cea708TextTrackRenderer(sampleSource); 60 61 TrackRenderer[] renderers = new TrackRenderer[MpegTsPlayer.RENDERER_COUNT]; 62 renderers[MpegTsPlayer.TRACK_TYPE_VIDEO] = videoRenderer; 63 renderers[MpegTsPlayer.TRACK_TYPE_AUDIO] = audioRenderer; 64 renderers[MpegTsPlayer.TRACK_TYPE_TEXT] = textRenderer; 65 callback.onRenderers(null, renderers); 66 } 67 } 68