playback: switch to ffmpeg extension

Switch to the FFMpeg ExoPlayer extension, which should enable support
for ALAC while also retaining support for FLAC below Android 8.

CHANGELOG.md

@@ -4,6 +4,7 @@
 
 #### What's New
 - Added support for disc subtitles
+- Added support for ALAC files
 
 #### What's Improved
 - Auxio will now accept zeroed track/disc numbers in the presence of non-zero total
@@ -11,6 +12,7 @@ track/disc fields
 - Music loading has been made slightly faster
 - Improved sort menu usability
 - Fall back to `TXXX:RELEASETYPE` on ID3v2 files
+- Switches and checkboxes have been mildly visually refreshed
 
 #### What's Fixed
 - Fixed non-functioning "repeat all" repeat mode

app/build.gradle

@@ -127,7 +127,6 @@ dependencies {
     kapt "com.google.dagger:dagger-compiler:$dagger_version"
     implementation "com.google.dagger:hilt-android:$hilt_version"
     kapt "com.google.dagger:hilt-android-compiler:$hilt_version"
-
     // Testing
     debugImplementation "com.squareup.leakcanary:leakcanary-android:2.9.1"
     testImplementation "junit:junit:4.13.2"

app/src/main/java/org/oxycblt/auxio/music/cache/CacheDatabase.kt

@@ -47,13 +47,13 @@ interface CachedSongsDao {
 @TypeConverters(CachedSong.Converters::class)
 data class CachedSong(
     /**
-     * The ID of the [Song]'s audio file, obtained from MediaStore. Note that this ID is highly
+     * The ID of the [RawSong]'s audio file, obtained from MediaStore. Note that this ID is highly
      * unstable and should only be used for accessing the audio file.
      */
     @PrimaryKey var mediaStoreId: Long,
     /** @see RawSong.dateAdded */
     var dateAdded: Long,
-    /** The latest date the [Song]'s audio file was modified, as a unix epoch timestamp. */
+    /** The latest date the [RawSong]'s audio file was modified, as a unix epoch timestamp. */
     var dateModified: Long,
     /** @see RawSong.size */
     var size: Long? = null,

app/src/main/java/org/oxycblt/auxio/music/cache/CacheModule.kt

@@ -26,8 +26,6 @@ import dagger.hilt.InstallIn
 import dagger.hilt.android.qualifiers.ApplicationContext
 import dagger.hilt.components.SingletonComponent
 import javax.inject.Singleton
-import org.oxycblt.auxio.music.extractor.CacheRepository
-import org.oxycblt.auxio.music.extractor.CacheRepositoryImpl
 
 @Module
 @InstallIn(SingletonComponent::class)

app/src/main/java/org/oxycblt/auxio/music/cache/CacheRepository.kt

@@ -15,11 +15,9 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
  
-package org.oxycblt.auxio.music.extractor
+package org.oxycblt.auxio.music.cache
 
 import javax.inject.Inject
-import org.oxycblt.auxio.music.cache.CachedSong
-import org.oxycblt.auxio.music.cache.CachedSongsDao
 import org.oxycblt.auxio.music.model.RawSong
 import org.oxycblt.auxio.util.*
 

app/src/main/java/org/oxycblt/auxio/music/storage/Filesystem.kt

@@ -157,6 +157,8 @@ data class MimeType(val fromExtension: String, val fromFormat: String?) {
                 MediaFormat.MIMETYPE_AUDIO_VORBIS -> R.string.cdc_vorbis
                 MediaFormat.MIMETYPE_AUDIO_OPUS -> R.string.cdc_opus
                 MediaFormat.MIMETYPE_AUDIO_FLAC -> R.string.cdc_flac
+                // TODO: Add ALAC to this as soon as I can stop using MediaFormat for
+                //  extracting metadata and just use ExoPlayer.
                 // We don't give a name to more unpopular formats.
                 else -> -1
             }

app/src/main/java/org/oxycblt/auxio/music/storage/MediaStoreExtractor.kt

@@ -29,7 +29,7 @@ import java.io.File
 import kotlinx.coroutines.channels.Channel
 import kotlinx.coroutines.yield
 import org.oxycblt.auxio.music.MusicSettings
-import org.oxycblt.auxio.music.extractor.Cache
+import org.oxycblt.auxio.music.cache.Cache
 import org.oxycblt.auxio.music.metadata.Date
 import org.oxycblt.auxio.music.metadata.parseId3v2PositionField
 import org.oxycblt.auxio.music.metadata.transformPositionField

app/src/main/java/org/oxycblt/auxio/music/system/Indexer.kt

@@ -35,7 +35,7 @@ import kotlinx.coroutines.withContext
 import kotlinx.coroutines.yield
 import org.oxycblt.auxio.BuildConfig
 import org.oxycblt.auxio.music.*
-import org.oxycblt.auxio.music.extractor.*
+import org.oxycblt.auxio.music.cache.CacheRepository
 import org.oxycblt.auxio.music.metadata.TagExtractor
 import org.oxycblt.auxio.music.model.Library
 import org.oxycblt.auxio.music.model.RawSong

app/src/main/java/org/oxycblt/auxio/music/system/IndexerService.kt

@@ -56,8 +56,10 @@ import org.oxycblt.auxio.util.logD
  */
 @AndroidEntryPoint
 class IndexerService : Service(), Indexer.Controller, MusicSettings.Listener {
-    @Inject lateinit var indexer: Indexer
+    @Inject lateinit var imageLoader: ImageLoader
     @Inject lateinit var musicRepository: MusicRepository
+    @Inject lateinit var indexer: Indexer
+    @Inject lateinit var musicSettings: MusicSettings
     @Inject lateinit var playbackManager: PlaybackStateManager
     private val serviceJob = Job()
     private val indexScope = CoroutineScope(serviceJob + Dispatchers.IO)
@@ -67,8 +69,6 @@ class IndexerService : Service(), Indexer.Controller, MusicSettings.Listener {
     private lateinit var observingNotification: ObservingNotification
     private lateinit var wakeLock: PowerManager.WakeLock
     private lateinit var indexerContentObserver: SystemContentObserver
-    @Inject lateinit var musicSettings: MusicSettings
-    @Inject lateinit var imageLoader: ImageLoader
 
     override fun onCreate() {
         super.onCreate()

app/src/main/java/org/oxycblt/auxio/playback/system/PlaybackService.kt

@@ -34,7 +34,7 @@ import com.google.android.exoplayer2.RenderersFactory
 import com.google.android.exoplayer2.audio.AudioAttributes
 import com.google.android.exoplayer2.audio.AudioCapabilities
 import com.google.android.exoplayer2.audio.MediaCodecAudioRenderer
-import com.google.android.exoplayer2.ext.flac.LibflacAudioRenderer
+import com.google.android.exoplayer2.ext.ffmpeg.FfmpegAudioRenderer
 import com.google.android.exoplayer2.extractor.DefaultExtractorsFactory
 import com.google.android.exoplayer2.mediacodec.MediaCodecSelector
 import com.google.android.exoplayer2.source.DefaultMediaSourceFactory
@@ -128,7 +128,7 @@ class PlaybackService :
                     audioListener,
                     AudioCapabilities.DEFAULT_AUDIO_CAPABILITIES,
                     replayGainProcessor),
-                LibflacAudioRenderer(handler, audioListener, replayGainProcessor))
+                FfmpegAudioRenderer(handler, audioListener, replayGainProcessor))
         }
 
         player =

app/src/main/java/org/oxycblt/auxio/ui/RippleFixMaterialButton.kt

@@ -21,6 +21,7 @@ import android.content.Context
 import android.util.AttributeSet
 import androidx.annotation.AttrRes
 import com.google.android.material.button.MaterialButton
+import org.oxycblt.auxio.R
 import org.oxycblt.auxio.util.fixDoubleRipple
 
 /**
@@ -30,8 +31,11 @@ import org.oxycblt.auxio.util.fixDoubleRipple
  */
 open class RippleFixMaterialButton
 @JvmOverloads
-constructor(context: Context, attrs: AttributeSet? = null, @AttrRes defStyleAttr: Int = 0) :
-    MaterialButton(context, attrs, defStyleAttr) {
+constructor(
+    context: Context,
+    attrs: AttributeSet? = null,
+    @AttrRes defStyleAttr: Int = R.attr.materialButtonStyle
+) : MaterialButton(context, attrs, defStyleAttr) {
     init {
         fixDoubleRipple()
     }

app/src/main/java/org/oxycblt/auxio/widgets/WidgetProvider.kt

@@ -196,7 +196,6 @@ class WidgetProvider : AppWidgetProvider() {
     /**
      * Set up the control bar in a [RemoteViews] layout that contains one. This is a kind of
      * "floating" drawable that sits in front of the cover and contains the controls.
-     * @param context [Context] required to set up the view.
      */
     private fun RemoteViews.setupBar(): RemoteViews {
         // Below API 31, enable a rounded bar only if round mode is enabled.
@@ -214,7 +213,6 @@ class WidgetProvider : AppWidgetProvider() {
     /**
      * Set up the background in a [RemoteViews] layout that contains one. This is largely
      * self-explanatory, being a solid-color background that sits behind the cover and controls.
-     * @param context [Context] required to set up the view.
      */
     private fun RemoteViews.setupBackground(): RemoteViews {
         // Below API 31, enable a rounded background only if round mode is enabled.

app/src/main/res/layout/view_preference_switch.xml

@@ -1,6 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <com.google.android.material.materialswitch.MaterialSwitch xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
     android:id="@+id/switchWidget"
     android:layout_width="wrap_content"
     android:layout_height="wrap_content"  />

app/src/main/res/values/styles_ui.xml

@@ -5,6 +5,7 @@
     <style name="Widget.Auxio.AppBarLayout" parent="Widget.Material3.AppBarLayout">
         <item name="android:layout_width">match_parent</item>
         <item name="android:layout_height">wrap_content</item>
+        <!-- Fix flickering lift animation when scrolling quickly -->
         <item name="android:stateListAnimator">@null</item>
     </style>
 

prebuild.py

@@ -17,10 +17,8 @@ import sys
 import subprocess
 import re
 
-# WARNING: THE EXOPLAYER VERSION MUST BE KEPT IN LOCK-STEP WITH THE FLAC EXTENSION AND 
+# WARNING: THE EXOPLAYER VERSION MUST BE KEPT IN LOCK-STEP WITH THE FFMPEG EXTENSION AND 
 # THE GRADLE DEPENDENCY. IF NOT, VERY UNFRIENDLY BUILD FAILURES AND CRASHES MAY ENSUE.
-# EXO_VERSION = "2.18.2"
-FLAC_VERSION = "1.3.2"
 
 OK="\033[1;32m" # Bold green
 FATAL="\033[1;31m" # Bold red
@@ -102,18 +100,26 @@ sh("git clone https://github.com/OxygenCobalt/ExoPlayer.git " + exoplayer_path)
 os.chdir(exoplayer_path)
 sh("git checkout auxio")
 
-print(INFO + "info:" + NC + " assembling flac extension...")
-flac_ext_aar_path = os.path.join(exoplayer_path, "extensions", "flac", 
-    "buildout", "outputs", "aar", "extension-flac-release.aar")
-flac_ext_jni_path = os.path.join("extensions", "flac", "src", "main", "jni")
+print(INFO + "info:" + NC + " assembling ffmpeg extension...")
+if system == "Linux":
+    host = "linux-x86_64"
+elif system == "Darwin":
+    host = "darwin-x86_64"
 
-os.chdir(flac_ext_jni_path)
-sh('curl "https://ftp.osuosl.org/pub/xiph/releases/flac/flac-' + FLAC_VERSION + 
-    '.tar.xz" | tar xJ && mv "flac-' + FLAC_VERSION + '" flac')
-sh(ndk_build_path + " APP_ABI=all -j4")
+ffmpeg_ext_path = os.path.join(exoplayer_path, "extensions", "ffmpeg", "src", "main")
+ffmpeg_ext_aar_path = os.path.join(exoplayer_path, "extensions", "ffmpeg", "buildout", "outputs", "aar", "extension-ffmpeg-release.aar")
+ffmpeg_ext_jni_path = os.path.join(exoplayer_path, "extensions", "ffmpeg", "src", "main", "jni")
+ffmpeg_src_path = os.path.join(ffmpeg_ext_jni_path, "ffmpeg")
+
+os.chdir(ffmpeg_ext_jni_path)
+sh("git clone git://source.ffmpeg.org/ffmpeg ffmpeg")
+os.chdir(ffmpeg_src_path)
+sh("git checkout release/4.2")
+os.chdir(ffmpeg_ext_jni_path)
+sh('./build_ffmpeg.sh "' + ffmpeg_ext_path + '" "' + ndk_path + '" "' + host + '" "' + "flac" + '" "' + "alac" + '"')
 
 os.chdir(exoplayer_path)
-sh("./gradlew extension-flac:bundleReleaseAar")
+sh("./gradlew extension-ffmpeg:bundleReleaseAar")
  
 print(INFO + "info:" + NC + " assembling extractor component...")
 
@@ -124,7 +130,7 @@ sh("./gradlew library-extractor:bundleReleaseAar")
 
 os.chdir(start_path)
 sh("mkdir " + libs_path)
-sh("cp " + flac_ext_aar_path + " " + libs_path)
+sh("cp " + ffmpeg_ext_aar_path + " " + libs_path)
 sh("cp " + extractor_aar_path + " " + libs_path)
  
 print(OK + "success:" + NC + " completed pre-build")