diff --git a/CHANGELOG.md b/CHANGELOG.md
index ee5dcc938..5d199c927 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,16 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.1.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
+## [Unreleased]
+
+### Added
+
+- Added `abr` property to `TypedSource`, supporting `preferredVideoCodecs` and `preferredAudioCodecs` on Android and Web.
+
+### Fixed
+
+- Fixed an issue on Android where `preferredKeySystems` in the content protection configuration was ignored.
+
 ## [11.4.1] - 26-07-22
 
 ### Changed
diff --git a/android/src/main/java/com/theoplayer/drm/ContentProtectionAdapter.kt b/android/src/main/java/com/theoplayer/drm/ContentProtectionAdapter.kt
index 56b6b45bf..610a6c563 100644
--- a/android/src/main/java/com/theoplayer/drm/ContentProtectionAdapter.kt
+++ b/android/src/main/java/com/theoplayer/drm/ContentProtectionAdapter.kt
@@ -48,6 +48,7 @@ const val PROP_MULTISESSION: String = "multiSession"
 const val PROP_KEYS: String = "keys"
 const val PROP_ID: String = "id"
 const val PROP_VALUE: String = "value"
+const val PROP_PREFERRED_KEY_SYSTEMS: String = "preferredKeySystems"
 
 object ContentProtectionAdapter {
 
@@ -108,6 +109,12 @@ object ContentProtectionAdapter {
       if (jsonConfig.has(PROP_MULTISESSION)) {
         multiSession(jsonConfig.getBoolean(PROP_MULTISESSION))
       }
+      if (jsonConfig.has(PROP_PREFERRED_KEY_SYSTEMS)) {
+        val jsonKeySystems = jsonConfig.getJSONArray(PROP_PREFERRED_KEY_SYSTEMS)
+        preferredKeySystems((0 until jsonKeySystems.length()).mapNotNull {
+          KeySystemAdapter.fromString(jsonKeySystems.getString(it))
+        })
+      }
       queryParameters(fromJSONObjectToMap(jsonConfig.optJSONObject(PROP_QUERY_PARAMETERS)))
     }.build()
   }
diff --git a/android/src/main/java/com/theoplayer/source/SourceAdapter.kt b/android/src/main/java/com/theoplayer/source/SourceAdapter.kt
index 303c02564..bd2893d4c 100644
--- a/android/src/main/java/com/theoplayer/source/SourceAdapter.kt
+++ b/android/src/main/java/com/theoplayer/source/SourceAdapter.kt
@@ -8,6 +8,7 @@ import com.theoplayer.android.api.ads.theoads.TheoAdDescription
 import com.theoplayer.android.api.error.THEOplayerException
 import com.facebook.react.bridge.ReadableMap
 import com.facebook.react.bridge.WritableMap
+import com.theoplayer.android.api.source.SourceAbrConfiguration
 import com.theoplayer.android.api.source.SourceDescription
 import com.theoplayer.android.api.source.TypedSource
 import com.theoplayer.android.api.source.metadata.MetadataDescription
@@ -41,6 +42,9 @@ import java.util.ArrayList
 import java.util.HashMap
 
 private const val TAG = "SourceAdapter"
+private const val PROP_ABR = "abr"
+private const val PROP_PREFERRED_VIDEO_CODECS = "preferredVideoCodecs"
+private const val PROP_PREFERRED_AUDIO_CODECS = "preferredAudioCodecs"
 private const val PROP_CONTENT_PROTECTION = "contentProtection"
 private const val PROP_LIVE_OFFSET = "liveOffset"
 private const val PROP_HLS_DATERANGE = "hlsDateRange"
@@ -179,6 +183,9 @@ class SourceAdapter {
         .poster(poster)
         .ads(*ads.toTypedArray())
         .textTracks(*sideLoadedTextTracks.toTypedArray())
+      parseAbrConfigurationFromSources(jsonSources, jsonSourceObject.optJSONObject(PROP_SOURCES))?.let {
+        builder.abr(it)
+      }
       if (metadataDescription != null) {
         builder.metadata(metadataDescription)
       }
@@ -194,6 +201,22 @@ class SourceAdapter {
     return null
   }
 
+  private fun parseAbrConfigurationFromSources(jsonSources: JSONArray?, jsonSource: JSONObject?): SourceAbrConfiguration? {
+    // The SDK applies the ABR configuration per source description: take it from the first typed source specifying one.
+    val jsonAbr = if (jsonSources != null) {
+      (0 until jsonSources.length()).firstNotNullOfOrNull { (jsonSources[it] as JSONObject).optJSONObject(PROP_ABR) }
+    } else {
+      jsonSource?.optJSONObject(PROP_ABR)
+    } ?: return null
+    return SourceAbrConfiguration(
+      maxBitrate = null,
+      preferredVideoCodecs = jsonAbr.optJSONArray(PROP_PREFERRED_VIDEO_CODECS)?.toStringList(),
+      preferredAudioCodecs = jsonAbr.optJSONArray(PROP_PREFERRED_AUDIO_CODECS)?.toStringList()
+    )
+  }
+
+  private fun JSONArray.toStringList(): List<String> = (0 until length()).map { getString(it) }
+
   private fun parseTheoLiveSource(jsonTypedSource: JSONObject): TheoLiveSource {
     return TheoLiveSource(
       src=jsonTypedSource.optString(PROP_SRC),
diff --git a/src/api/source/SourceDescription.ts b/src/api/source/SourceDescription.ts
index 475d33aaf..a4388ec71 100644
--- a/src/api/source/SourceDescription.ts
+++ b/src/api/source/SourceDescription.ts
@@ -16,6 +16,7 @@ import type { ServerSideAdInsertionConfiguration } from './ads/ssai/ServerSideAd
 import type { AnalyticsDescription } from './analytics/AnalyticsDescription';
 import { CmcdSourceConfiguration } from '../cmcd/CmcdConfiguration';
 import { SourceLatencyConfiguration } from './latency/SourceLatencyConfiguration';
+import type { SourceAbrConfiguration } from './abr/SourceAbrConfiguration';
 
 /**
  * A type alias for a {@link TypedSource} media resource.
@@ -344,6 +345,13 @@ export interface BaseSource {
    * <br/> - Ignored for non-HLS streams.
    */
   hls?: HlsPlaybackConfiguration;
+
+  /**
+   * The source's ABR configuration.
+   *
+   * @platform web,android
+   */
+  abr?: SourceAbrConfiguration;
 }
 
 /**
diff --git a/src/api/source/abr/SourceAbrConfiguration.ts b/src/api/source/abr/SourceAbrConfiguration.ts
new file mode 100644
index 000000000..a970f1849
--- /dev/null
+++ b/src/api/source/abr/SourceAbrConfiguration.ts
@@ -0,0 +1,27 @@
+/**
+ * Describes the ABR configuration for a specific source.
+ *
+ * @category Source
+ * @public
+ */
+export interface SourceAbrConfiguration {
+  /**
+   * A list of preferred audio codecs which will be used by the ABR algorithm for track selection, if the codec is supported.
+   *
+   * @platform web,android
+   *
+   * @remarks
+   * <br/> - Codecs are specified by their RFC 6381 name, e.g. `"ec-3"` or `"mp4a.40.2"`.
+   */
+  preferredAudioCodecs?: string[];
+
+  /**
+   * A list of preferred video codecs which will be used by the ABR algorithm for track selection, if the codec is supported.
+   *
+   * @platform web,android
+   *
+   * @remarks
+   * <br/> - Codecs are specified by their RFC 6381 name, e.g. `"hvc1"`, `"dvh1"` or `"avc1"`.
+   */
+  preferredVideoCodecs?: string[];
+}
diff --git a/src/api/source/abr/barrel.ts b/src/api/source/abr/barrel.ts
new file mode 100644
index 000000000..8b7a54ef0
--- /dev/null
+++ b/src/api/source/abr/barrel.ts
@@ -0,0 +1 @@
+export * from './SourceAbrConfiguration';
diff --git a/src/api/source/barrel.ts b/src/api/source/barrel.ts
index bcabdd48e..bed164870 100644
--- a/src/api/source/barrel.ts
+++ b/src/api/source/barrel.ts
@@ -1,3 +1,4 @@
+export * from './abr/barrel';
 export * from './ads/barrel';
 export * from './analytics/barrel';
 export * from './drm/barrel';