Retain AV1 constructor for DefaultRenderersFactory

Issue: #6773
PiperOrigin-RevId: 285990377

RELEASENOTES.md

@@ -5,6 +5,8 @@
 * UI: Exclude `DefaultTimeBar` region from system gesture detection
   ([#6685](https://github.com/google/ExoPlayer/issues/6685)).
 * Propagate HTTP request headers through `CacheDataSource`.
+* AV1 extension: Fix ProGuard rules
+  ([6773](https://github.com/google/ExoPlayer/issues/6773)).
 
 ### 2.11.0 (2019-12-11) ###
 

library/core/proguard-rules.txt

@@ -5,6 +5,10 @@
 -keepclassmembers class com.google.android.exoplayer2.ext.vp9.LibvpxVideoRenderer {
   <init>(long, android.os.Handler, com.google.android.exoplayer2.video.VideoRendererEventListener, int);
 }
+-dontnote com.google.android.exoplayer2.ext.av1.Libgav1VideoRenderer
+-keepclassmembers class com.google.android.exoplayer2.ext.av1.Libgav1VideoRenderer {
+  <init>(long, android.os.Handler, com.google.android.exoplayer2.video.VideoRendererEventListener, int);
+}
 -dontnote com.google.android.exoplayer2.ext.opus.LibopusAudioRenderer
 -keepclassmembers class com.google.android.exoplayer2.ext.opus.LibopusAudioRenderer {
   <init>(android.os.Handler, com.google.android.exoplayer2.audio.AudioRendererEventListener, com.google.android.exoplayer2.audio.AudioProcessor[]);