Split DASH into a separate module

Issue: #2139

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=150762237

library/all/build.gradle

@@ -27,6 +27,7 @@ android {
 
 dependencies {
     compile project(':library-core')
+    compile project(':library-dash')
     compile project(':library-hls')
     compile project(':library-smoothstreaming')
     compile project(':library-ui')

library/dash/build.gradle

@@ -0,0 +1,44 @@
+// Copyright (C) 2017 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.
+apply plugin: 'com.android.library'
+
+android {
+    compileSdkVersion project.ext.compileSdkVersion
+    buildToolsVersion project.ext.buildToolsVersion
+
+    defaultConfig {
+        minSdkVersion project.ext.minSdkVersion
+        targetSdkVersion project.ext.targetSdkVersion
+    }
+
+    sourceSets {
+        androidTest {
+            java.srcDirs += "../../testutils/src/main/java/"
+        }
+    }
+}
+
+dependencies {
+    compile project(':library-core')
+    compile 'com.android.support:support-annotations:25.2.0'
+    androidTestCompile 'com.google.dexmaker:dexmaker:1.2'
+    androidTestCompile 'com.google.dexmaker:dexmaker-mockito:1.2'
+    androidTestCompile 'org.mockito:mockito-core:1.9.5'
+}
+
+ext {
+    releaseArtifact = 'exoplayer-dash'
+    releaseDescription = 'The ExoPlayer library DASH module.'
+}
+apply from: '../../publish.gradle'

library/dash/src/androidTest/AndroidManifest.xml

@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2017 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.
+-->
+
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    package="com.google.android.exoplayer2.source.dash.test">
+
+  <uses-sdk android:minSdkVersion="9" android:targetSdkVersion="24"/>
+
+  <application android:debuggable="true"
+      android:allowBackup="false"
+      tools:ignore="MissingApplicationIcon,HardcodedDebugMode">
+    <uses-library android:name="android.test.runner"/>
+  </application>
+
+  <instrumentation
+      android:targetPackage="com.google.android.exoplayer2.source.dash.test"
+      android:name="android.test.InstrumentationTestRunner"
+      tools:replace="android:targetPackage"/>
+
+</manifest>

library/dash/src/androidTest/java/com/google/android/exoplayer2/source/dash/manifest/DashManifestParserTest.java

@@ -28,11 +28,9 @@ import java.util.List;
  */
 public class DashManifestParserTest extends InstrumentationTestCase {
 
-  private static final String SAMPLE_MPD_1 = "dash/sample_mpd_1";
-  private static final String SAMPLE_MPD_2_UNKNOWN_MIME_TYPE =
-      "dash/sample_mpd_2_unknown_mime_type";
-  private static final String SAMPLE_MPD_3_SEGMENT_TEMPLATE =
-      "dash/sample_mpd_3_segment_template";
+  private static final String SAMPLE_MPD_1 = "sample_mpd_1";
+  private static final String SAMPLE_MPD_2_UNKNOWN_MIME_TYPE = "sample_mpd_2_unknown_mime_type";
+  private static final String SAMPLE_MPD_3_SEGMENT_TEMPLATE = "sample_mpd_3_segment_template";
 
   /**
    * Simple test to ensure the sample manifests parse without any exceptions being thrown.

library/dash/src/main/AndroidManifest.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2017 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.
+-->
+
+<manifest package="com.google.android.exoplayer2.source.dash"/>

library/dash/src/main/java/com/google/android/exoplayer2/source/dash/DashUtil.java

@@ -25,6 +25,7 @@ import com.google.android.exoplayer2.extractor.mkv.MatroskaExtractor;
 import com.google.android.exoplayer2.extractor.mp4.FragmentedMp4Extractor;
 import com.google.android.exoplayer2.source.chunk.ChunkExtractorWrapper;
 import com.google.android.exoplayer2.source.chunk.InitializationChunk;
+import com.google.android.exoplayer2.source.dash.manifest.AdaptationSet;
 import com.google.android.exoplayer2.source.dash.manifest.DashManifest;
 import com.google.android.exoplayer2.source.dash.manifest.DashManifestParser;
 import com.google.android.exoplayer2.source.dash.manifest.Period;
@@ -65,6 +66,48 @@ public final class DashUtil {
   }
 
   /**
+   * Loads {@link DrmInitData} for a given manifest.
+   *
+   * @param dataSource The {@link HttpDataSource} from which data should be loaded.
+   * @param dashManifest The {@link DashManifest} of the DASH content.
+   * @return The loaded {@link DrmInitData}.
+   */
+  public static DrmInitData loadDrmInitData(DataSource dataSource, DashManifest dashManifest)
+      throws IOException, InterruptedException {
+    // Prefer drmInitData obtained from the manifest over drmInitData obtained from the stream,
+    // as per DASH IF Interoperability Recommendations V3.0, 7.5.3.
+    if (dashManifest.getPeriodCount() < 1) {
+      return null;
+    }
+    Period period = dashManifest.getPeriod(0);
+    int adaptationSetIndex = period.getAdaptationSetIndex(C.TRACK_TYPE_VIDEO);
+    if (adaptationSetIndex == C.INDEX_UNSET) {
+      adaptationSetIndex = period.getAdaptationSetIndex(C.TRACK_TYPE_AUDIO);
+      if (adaptationSetIndex == C.INDEX_UNSET) {
+        return null;
+      }
+    }
+    AdaptationSet adaptationSet = period.adaptationSets.get(adaptationSetIndex);
+    if (adaptationSet.representations.isEmpty()) {
+      return null;
+    }
+    Representation representation = adaptationSet.representations.get(0);
+    DrmInitData drmInitData = representation.format.drmInitData;
+    if (drmInitData == null) {
+      Format sampleFormat = DashUtil.loadSampleFormat(dataSource, representation);
+      if (sampleFormat != null) {
+        drmInitData = sampleFormat.drmInitData;
+      }
+      if (drmInitData == null) {
+        return null;
+      }
+    }
+    return drmInitData;
+  }
+
+  /**
+   * Loads initialization data for the {@code representation} and returns the sample {@link
+   * Format}.
    * Loads {@link DrmInitData} for a given period in a DASH manifest.
    *
    * @param dataSource The {@link HttpDataSource} from which data should be loaded.

playbacktests/build.gradle

@@ -25,5 +25,6 @@ android {
 
 dependencies {
     compile project(':library-core')
+    androidTestCompile project(':library-dash')
     androidTestCompile project(':library-hls')
 }

settings.gradle

@@ -13,6 +13,7 @@
 // limitations under the License.
 include ':library'
 include ':library-core'
+include ':library-dash'
 include ':library-hls'
 include ':library-smoothstreaming'
 include ':library-ui'
@@ -30,6 +31,7 @@ include ':extension-vp9'
 
 project(':library').projectDir = new File(settingsDir, 'library/all')
 project(':library-core').projectDir = new File(settingsDir, 'library/core')
+project(':library-dash').projectDir = new File(settingsDir, 'library/dash')
 project(':library-hls').projectDir = new File(settingsDir, 'library/hls')
 project(':library-smoothstreaming').projectDir = new File(settingsDir, 'library/smoothstreaming')
 project(':library-ui').projectDir = new File(settingsDir, 'library/ui')