Add decoder module

PiperOrigin-RevId: 404810682

Author: ojw28

core_settings.gradle

@@ -42,6 +42,8 @@ project(modulePrefix + 'library-transformer').projectDir = new File(rootDir, 'li
 include modulePrefix + 'library-ui'
 project(modulePrefix + 'library-ui').projectDir = new File(rootDir, 'library/ui')
 
+include modulePrefix + 'library-decoder'
+project(modulePrefix + 'library-decoder').projectDir = new File(rootDir, 'library/decoder')
 include modulePrefix + 'extension-av1'
 project(modulePrefix + 'extension-av1').projectDir = new File(rootDir, 'extensions/av1')
 include modulePrefix + 'extension-ffmpeg'

extensions/av1/build.gradle

@@ -44,6 +44,8 @@ if (project.file('src/main/jni/libgav1').exists()) {
 }
 
 dependencies {
+    implementation project(modulePrefix + 'library-decoder')
+    // TODO(b/203752526): Remove this dependency.
     implementation project(modulePrefix + 'library-core')
     implementation 'androidx.annotation:annotation:' + androidxAnnotationVersion
     compileOnly 'org.jetbrains.kotlin:kotlin-annotations-jvm:' + kotlinAnnotationsVersion

extensions/ffmpeg/build.gradle

@@ -21,6 +21,8 @@ if (project.file('src/main/jni/ffmpeg').exists()) {
 }
 
 dependencies {
+    implementation project(modulePrefix + 'library-decoder')
+    // TODO(b/203752526): Remove this dependency.
     implementation project(modulePrefix + 'library-core')
     implementation 'androidx.annotation:annotation:' + androidxAnnotationVersion
     compileOnly 'org.checkerframework:checker-qual:' + checkerframeworkVersion

extensions/flac/build.gradle

@@ -24,6 +24,8 @@ android {
 }
 
 dependencies {
+    implementation project(modulePrefix + 'library-decoder')
+    // TODO(b/203752526): Remove this dependency.
     implementation project(modulePrefix + 'library-core')
     implementation 'androidx.annotation:annotation:' + androidxAnnotationVersion
     compileOnly 'org.checkerframework:checker-qual:' + checkerframeworkVersion

extensions/opus/build.gradle

@@ -24,6 +24,8 @@ android {
 }
 
 dependencies {
+    implementation project(modulePrefix + 'library-decoder')
+    // TODO(b/203752526): Remove this dependency.
     implementation project(modulePrefix + 'library-core')
     implementation 'androidx.annotation:annotation:' + androidxAnnotationVersion
     compileOnly 'org.jetbrains.kotlin:kotlin-annotations-jvm:' + kotlinAnnotationsVersion

extensions/vp9/build.gradle

@@ -24,6 +24,8 @@ android {
 }
 
 dependencies {
+    implementation project(modulePrefix + 'library-decoder')
+    // TODO(b/203752526): Remove this dependency.
     implementation project(modulePrefix + 'library-core')
     implementation 'androidx.annotation:annotation:' + androidxAnnotationVersion
     compileOnly 'org.jetbrains.kotlin:kotlin-annotations-jvm:' + kotlinAnnotationsVersion

library/all/build.gradle

@@ -14,6 +14,9 @@
 apply from: "$gradle.ext.exoplayerSettingsDir/common_library_config.gradle"
 
 dependencies {
+    api project(modulePrefix + 'library-common')
+    api project(modulePrefix + 'library-decoder')
+    api project(modulePrefix + 'library-extractor')
     api project(modulePrefix + 'library-core')
     api project(modulePrefix + 'library-dash')
     api project(modulePrefix + 'library-hls')

library/core/build.gradle

@@ -36,6 +36,8 @@ android {
 
 dependencies {
     api project(modulePrefix + 'library-common')
+    // TODO(b/203754886): Revisit which modules are exported as API dependencies.
+    api project(modulePrefix + 'library-decoder')
     api project(modulePrefix + 'library-extractor')
     implementation 'androidx.annotation:annotation:' + androidxAnnotationVersion
     implementation 'androidx.core:core:' + androidxCoreVersion

library/decoder/README.md

@@ -0,0 +1,11 @@
+# Decoder module
+
+Provides a decoder abstraction. Application code will not normally need to
+depend on this module directly.
+
+## Links
+
+*   [Javadoc][]: Classes matching `com.google.android.exoplayer2.decoder.*` belong to this
+    module.
+
+[Javadoc]: https://exoplayer.dev/doc/reference/index.html

library/decoder/build.gradle

@@ -0,0 +1,47 @@
+// Copyright (C) 2021 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 from: "$gradle.ext.exoplayerSettingsDir/common_library_config.gradle"
+
+android {
+    defaultConfig {
+        multiDexEnabled true
+    }
+
+    buildTypes {
+        debug {
+            testCoverageEnabled = true
+        }
+    }
+}
+
+dependencies {
+    implementation project(modulePrefix + 'library-common')
+    implementation 'androidx.annotation:annotation:' + androidxAnnotationVersion
+    compileOnly 'org.checkerframework:checker-qual:' + checkerframeworkVersion
+    testImplementation 'androidx.test:core:' + androidxTestCoreVersion
+    testImplementation 'androidx.test.ext:junit:' + androidxTestJUnitVersion
+    testImplementation 'com.google.truth:truth:' + truthVersion
+    testImplementation 'org.robolectric:robolectric:' + robolectricVersion
+}
+
+ext {
+    javadocTitle = 'Decoder module'
+}
+apply from: '../../javadoc_library.gradle'
+
+ext {
+    releaseArtifactId = 'exoplayer-decoder'
+    releaseDescription = 'The ExoPlayer library decoder module.'
+}
+apply from: '../../publish.gradle'