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Add SampleSourceProvider as a factory for SampleSources (playlists #2).
Initially only the first source index is used. In a later change, ExoPlayerImplInternal will create SampleSources for different playlist item indices as necessary. ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=123312595
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demo/src/main/java/com/google/android/exoplayer/demo/UriSampleSourceProvider.java
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| /* | ||
| * Copyright (C) 2014 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.google.android.exoplayer.demo; | ||
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| import com.google.android.exoplayer.C; | ||
| import com.google.android.exoplayer.SampleSource; | ||
| import com.google.android.exoplayer.SampleSourceProvider; | ||
| import com.google.android.exoplayer.SimpleExoPlayer; | ||
| import com.google.android.exoplayer.dash.DashSampleSource; | ||
| import com.google.android.exoplayer.extractor.ExtractorSampleSource; | ||
| import com.google.android.exoplayer.hls.HlsSampleSource; | ||
| import com.google.android.exoplayer.smoothstreaming.SmoothStreamingSampleSource; | ||
| import com.google.android.exoplayer.upstream.Allocator; | ||
| import com.google.android.exoplayer.upstream.DataSource; | ||
| import com.google.android.exoplayer.upstream.DataSourceFactory; | ||
| import com.google.android.exoplayer.upstream.DefaultAllocator; | ||
| import com.google.android.exoplayer.util.Util; | ||
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| import android.net.Uri; | ||
| import android.os.Handler; | ||
| import android.text.TextUtils; | ||
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| /** | ||
| * Provides {@link SampleSource}s to play back media loaded from one or more URI/URIs. | ||
| */ | ||
| public final class UriSampleSourceProvider implements SampleSourceProvider { | ||
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| public static final int UNKNOWN_TYPE = -1; | ||
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| private final SimpleExoPlayer player; | ||
| private final DataSourceFactory dataSourceFactory; | ||
| private final Uri[] uris; | ||
| private final String overrideExtension; | ||
| private final int type; | ||
| private final Handler handler; | ||
| private final EventLogger eventLogger; | ||
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| /** | ||
| * Constructs a source provider for {@link SampleSource} to play back media at the specified | ||
| * URI, using the specified type. | ||
| * | ||
| * @param player The demo player, which will listen to source events. | ||
| * @param dataSourceFactory A data source factory. | ||
| * @param uri The URI to play back. | ||
| * @param type A {@code PlayerActivity.TYPE_*} constant specifying the type of the source, or | ||
| * {@link #UNKNOWN_TYPE}, in which case it is inferred from the URI's extension. | ||
| * @param overrideExtension An overriding file extension used when inferring the source's type, | ||
| * or {@code null}. | ||
| * @param handler A handler to use for logging events. | ||
| * @param eventLogger An event logger. | ||
| */ | ||
| public UriSampleSourceProvider(SimpleExoPlayer player, DataSourceFactory dataSourceFactory, | ||
| Uri uri, int type, String overrideExtension, Handler handler, EventLogger eventLogger) { | ||
| this.player = player; | ||
| this.dataSourceFactory = dataSourceFactory; | ||
| this.overrideExtension = overrideExtension; | ||
| this.type = type; | ||
| this.handler = handler; | ||
| this.eventLogger = eventLogger; | ||
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| uris = new Uri[] {uri}; | ||
| } | ||
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| /** | ||
| * Constructs a source provider for {@link SampleSource}s to play back media at one or more | ||
| * {@link Uri}s. The content type of each URI is inferred based on its last path segment. | ||
| * | ||
| * @param player The demo player, which will listen to source events. | ||
| * @param dataSourceFactory A data source factory. | ||
| * @param uris The URIs to play back. | ||
| * @param handler A handler to use for logging events. | ||
| * @param eventLogger An event logger. | ||
| */ | ||
| public UriSampleSourceProvider(SimpleExoPlayer player, DataSourceFactory dataSourceFactory, | ||
| Uri[] uris, Handler handler, EventLogger eventLogger) { | ||
| this.player = player; | ||
| this.dataSourceFactory = dataSourceFactory; | ||
| this.uris = uris; | ||
| this.handler = handler; | ||
| this.eventLogger = eventLogger; | ||
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| overrideExtension = null; | ||
| type = UNKNOWN_TYPE; | ||
| } | ||
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| @Override | ||
| public int getSourceCount() { | ||
| return uris.length; | ||
| } | ||
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| @Override | ||
| public SampleSource createSource(int index) { | ||
| Uri uri = uris[index]; | ||
| int type = this.type == UNKNOWN_TYPE ? inferContentType(uri, overrideExtension) : this.type; | ||
| switch (type) { | ||
| case Util.TYPE_SS: | ||
| return new SmoothStreamingSampleSource(uri, dataSourceFactory, player.getBandwidthMeter(), | ||
| handler, eventLogger); | ||
| case Util.TYPE_DASH: | ||
| return new DashSampleSource(uri, dataSourceFactory, player.getBandwidthMeter(), handler, | ||
| eventLogger); | ||
| case Util.TYPE_HLS: | ||
| return new HlsSampleSource(uri, dataSourceFactory, player.getBandwidthMeter(), handler, | ||
| eventLogger); | ||
| case Util.TYPE_OTHER: | ||
| Allocator allocator = new DefaultAllocator(C.DEFAULT_BUFFER_SEGMENT_SIZE); | ||
| DataSource dataSource = dataSourceFactory.createDataSource(player.getBandwidthMeter()); | ||
| return new ExtractorSampleSource(uri, dataSource, allocator, C.DEFAULT_MUXED_BUFFER_SIZE, | ||
| handler, eventLogger, 0, ExtractorSampleSource.newDefaultExtractors()); | ||
| default: | ||
| throw new IllegalStateException("Unsupported type: " + type); | ||
| } | ||
| } | ||
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| /** | ||
| * Makes a best guess to infer the type from a media {@link Uri} and an optional overriding file | ||
| * extension. | ||
| * | ||
| * @param uri The {@link Uri} of the media. | ||
| * @param fileExtension An overriding file extension. | ||
| * @return The inferred type. | ||
| */ | ||
| private static int inferContentType(Uri uri, String fileExtension) { | ||
| String lastPathSegment = !TextUtils.isEmpty(fileExtension) ? "." + fileExtension | ||
| : uri.getLastPathSegment(); | ||
| return Util.inferContentType(lastPathSegment); | ||
| } | ||
|
|
||
| } |
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