diff --git a/demo/build.gradle b/demo/build.gradle
index 27180682fa..007dc70590 100644
--- a/demo/build.gradle
+++ b/demo/build.gradle
@@ -24,24 +24,19 @@ android {
 
     buildTypes {
         release {
-            minifyEnabled false
-            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
+            shrinkResources true
+            minifyEnabled true
+            proguardFiles getDefaultProguardFile('proguard-android.txt')
         }
         debug {
             jniDebuggable = true
-            debuggable = true
         }
     }
 
-    lintOptions {
-        abortOnError false
-    }
-
     productFlavors {
         noExtensions
         withExtensions
     }
-
 }
 
 dependencies {
diff --git a/extensions/cronet/build.gradle b/extensions/cronet/build.gradle
index 3c9a36c891..a245133937 100644
--- a/extensions/cronet/build.gradle
+++ b/extensions/cronet/build.gradle
@@ -23,17 +23,6 @@ android {
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
     }
 
-    buildTypes {
-        release {
-            minifyEnabled false
-            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
-        }
-    }
-
-    lintOptions {
-        abortOnError false
-    }
-
     sourceSets.main {
         jniLibs.srcDirs = ['jniLibs']
     }
diff --git a/extensions/ffmpeg/build.gradle b/extensions/ffmpeg/build.gradle
index 579c663fe2..e0f6d900a0 100644
--- a/extensions/ffmpeg/build.gradle
+++ b/extensions/ffmpeg/build.gradle
@@ -20,17 +20,7 @@ android {
     defaultConfig {
         minSdkVersion 9
         targetSdkVersion project.ext.targetSdkVersion
-    }
-
-    buildTypes {
-        release {
-            minifyEnabled false
-            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
-        }
-    }
-
-    lintOptions {
-        abortOnError false
+        consumerProguardFiles 'proguard-rules.txt'
     }
 
     sourceSets.main {
diff --git a/extensions/ffmpeg/src/main/proguard.cfg b/extensions/ffmpeg/proguard-rules.txt
similarity index 100%
rename from extensions/ffmpeg/src/main/proguard.cfg
rename to extensions/ffmpeg/proguard-rules.txt
diff --git a/extensions/flac/build.gradle b/extensions/flac/build.gradle
index a40a1adead..7f1a790dad 100644
--- a/extensions/flac/build.gradle
+++ b/extensions/flac/build.gradle
@@ -20,17 +20,7 @@ android {
     defaultConfig {
         minSdkVersion 9
         targetSdkVersion project.ext.targetSdkVersion
-    }
-
-    buildTypes {
-        release {
-            minifyEnabled false
-            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
-        }
-    }
-
-    lintOptions {
-        abortOnError false
+        consumerProguardFiles 'proguard-rules.txt'
     }
 
     sourceSets.main {
diff --git a/extensions/flac/src/main/proguard.cfg b/extensions/flac/proguard-rules.txt
similarity index 100%
rename from extensions/flac/src/main/proguard.cfg
rename to extensions/flac/proguard-rules.txt
diff --git a/extensions/okhttp/build.gradle b/extensions/okhttp/build.gradle
index 442f0f78dc..bbf69c60e4 100644
--- a/extensions/okhttp/build.gradle
+++ b/extensions/okhttp/build.gradle
@@ -22,17 +22,6 @@ android {
         minSdkVersion 9
         targetSdkVersion project.ext.targetSdkVersion
     }
-
-    buildTypes {
-        release {
-            minifyEnabled false
-            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
-        }
-    }
-
-    lintOptions {
-        abortOnError false
-    }
 }
 
 dependencies {
diff --git a/extensions/opus/build.gradle b/extensions/opus/build.gradle
index 3bc06ddaf4..d354654c14 100644
--- a/extensions/opus/build.gradle
+++ b/extensions/opus/build.gradle
@@ -20,17 +20,7 @@ android {
     defaultConfig {
         minSdkVersion 9
         targetSdkVersion project.ext.targetSdkVersion
-    }
-
-    buildTypes {
-        release {
-            minifyEnabled false
-            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
-        }
-    }
-
-    lintOptions {
-        abortOnError false
+        consumerProguardFiles 'proguard-rules.txt'
     }
 
     sourceSets.main {
diff --git a/extensions/opus/src/main/proguard.cfg b/extensions/opus/proguard-rules.txt
similarity index 100%
rename from extensions/opus/src/main/proguard.cfg
rename to extensions/opus/proguard-rules.txt
diff --git a/extensions/vp9/build.gradle b/extensions/vp9/build.gradle
index 3bc06ddaf4..d354654c14 100644
--- a/extensions/vp9/build.gradle
+++ b/extensions/vp9/build.gradle
@@ -20,17 +20,7 @@ android {
     defaultConfig {
         minSdkVersion 9
         targetSdkVersion project.ext.targetSdkVersion
-    }
-
-    buildTypes {
-        release {
-            minifyEnabled false
-            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
-        }
-    }
-
-    lintOptions {
-        abortOnError false
+        consumerProguardFiles 'proguard-rules.txt'
     }
 
     sourceSets.main {
diff --git a/extensions/vp9/src/main/proguard.cfg b/extensions/vp9/proguard-rules.txt
similarity index 100%
rename from extensions/vp9/src/main/proguard.cfg
rename to extensions/vp9/proguard-rules.txt
diff --git a/library/build.gradle b/library/build.gradle
index 5ec947d0eb..ae2eb2f3d9 100644
--- a/library/build.gradle
+++ b/library/build.gradle
@@ -28,13 +28,10 @@ android {
         // greater.
         minSdkVersion 9
         targetSdkVersion project.ext.targetSdkVersion
+        consumerProguardFiles 'proguard-rules.txt'
     }
 
     buildTypes {
-        release {
-            minifyEnabled false
-            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
-        }
         // Re-enable test coverage when the following issue is fixed:
         // https://code.google.com/p/android/issues/detail?id=226070
         // debug {
@@ -42,10 +39,6 @@ android {
         // }
     }
 
-    lintOptions {
-        abortOnError false
-    }
-
     sourceSets {
         androidTest {
             java.srcDirs += "../testutils/src/main/java/"
diff --git a/library/proguard-rules.txt b/library/proguard-rules.txt
new file mode 100644
index 0000000000..75f2d095be
--- /dev/null
+++ b/library/proguard-rules.txt
@@ -0,0 +1,7 @@
+# Accessed via reflection in SubtitleDecoderFactory.DEFAULT
+-keepclassmembers class com.google.android.exoplayer2.text.cea.Cea608Decoder {
+    public <init>(java.lang.String, int);
+}
+-keepclassmembers class com.google.android.exoplayer2.text.cea.Cea708Decoder {
+    public <init>(int);
+}
diff --git a/playbacktests/build.gradle b/playbacktests/build.gradle
index c099e2c86e..c53793b534 100644
--- a/playbacktests/build.gradle
+++ b/playbacktests/build.gradle
@@ -21,17 +21,6 @@ android {
         minSdkVersion 9
         targetSdkVersion project.ext.targetSdkVersion
     }
-
-    buildTypes {
-        release {
-            minifyEnabled false
-            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
-        }
-    }
-
-    lintOptions {
-        abortOnError false
-    }
 }
 
 dependencies {
diff --git a/testutils/build.gradle b/testutils/build.gradle
index 61bb50f74d..b935b30c69 100644
--- a/testutils/build.gradle
+++ b/testutils/build.gradle
@@ -8,13 +8,6 @@ android {
         minSdkVersion 9
         targetSdkVersion project.ext.targetSdkVersion
     }
-
-    buildTypes {
-        release {
-            minifyEnabled false
-            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
-        }
-    }
 }
 
 dependencies {