try turning off vp9 loop filter on android

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=178970007

extensions/vp9/src/main/java/com/google/android/exoplayer2/ext/vp9/LibvpxVideoRenderer.java

@@ -92,6 +92,7 @@ public final class LibvpxVideoRenderer extends BaseRenderer {
   private static final int INITIAL_INPUT_BUFFER_SIZE = 768 * 1024; // Value based on cs/SoftVpx.cpp.
 
   private final boolean scaleToFit;
+  private final boolean disableLoopFilter;
   private final long allowedJoiningTimeMs;
   private final int maxDroppedFramesToNotify;
   private final boolean playClearSamplesWithoutKeys;
@@ -154,7 +155,7 @@ public final class LibvpxVideoRenderer extends BaseRenderer {
       Handler eventHandler, VideoRendererEventListener eventListener,
       int maxDroppedFramesToNotify) {
     this(scaleToFit, allowedJoiningTimeMs, eventHandler, eventListener, maxDroppedFramesToNotify,
-        null, false);
+        null, false, false);
   }
 
   /**
@@ -173,13 +174,15 @@ public final class LibvpxVideoRenderer extends BaseRenderer {
    *     begin in parallel with key acquisition. This parameter specifies whether the renderer is
    *     permitted to play clear regions of encrypted media files before {@code drmSessionManager}
    *     has obtained the keys necessary to decrypt encrypted regions of the media.
+   * @param disableLoopFilter Disable the libvpx in-loop smoothing filter.
    */
   public LibvpxVideoRenderer(boolean scaleToFit, long allowedJoiningTimeMs,
       Handler eventHandler, VideoRendererEventListener eventListener,
       int maxDroppedFramesToNotify, DrmSessionManager<ExoMediaCrypto> drmSessionManager,
-      boolean playClearSamplesWithoutKeys) {
+      boolean playClearSamplesWithoutKeys, boolean disableLoopFilter) {
     super(C.TRACK_TYPE_VIDEO);
     this.scaleToFit = scaleToFit;
+    this.disableLoopFilter = disableLoopFilter;
     this.allowedJoiningTimeMs = allowedJoiningTimeMs;
     this.maxDroppedFramesToNotify = maxDroppedFramesToNotify;
     this.drmSessionManager = drmSessionManager;
@@ -625,7 +628,7 @@ public final class LibvpxVideoRenderer extends BaseRenderer {
       long codecInitializingTimestamp = SystemClock.elapsedRealtime();
       TraceUtil.beginSection("createVpxDecoder");
       decoder = new VpxDecoder(NUM_INPUT_BUFFERS, NUM_OUTPUT_BUFFERS, INITIAL_INPUT_BUFFER_SIZE,
-          mediaCrypto);
+          mediaCrypto, disableLoopFilter);
       decoder.setOutputMode(outputMode);
       TraceUtil.endSection();
       long codecInitializedTimestamp = SystemClock.elapsedRealtime();

extensions/vp9/src/main/java/com/google/android/exoplayer2/ext/vp9/VpxDecoder.java

@@ -49,10 +49,11 @@ import java.nio.ByteBuffer;
    * @param initialInputBufferSize The initial size of each input buffer.
    * @param exoMediaCrypto The {@link ExoMediaCrypto} object required for decoding encrypted
    *     content. Maybe null and can be ignored if decoder does not handle encrypted content.
+   * @param disableLoopFilter Disable the libvpx in-loop smoothing filter.
    * @throws VpxDecoderException Thrown if an exception occurs when initializing the decoder.
    */
   public VpxDecoder(int numInputBuffers, int numOutputBuffers, int initialInputBufferSize,
-      ExoMediaCrypto exoMediaCrypto) throws VpxDecoderException {
+      ExoMediaCrypto exoMediaCrypto, boolean disableLoopFilter) throws VpxDecoderException {
     super(new VpxInputBuffer[numInputBuffers], new VpxOutputBuffer[numOutputBuffers]);
     if (!VpxLibrary.isAvailable()) {
       throw new VpxDecoderException("Failed to load decoder native libraries.");
@@ -61,7 +62,7 @@ import java.nio.ByteBuffer;
     if (exoMediaCrypto != null && !VpxLibrary.vpxIsSecureDecodeSupported()) {
       throw new VpxDecoderException("Vpx decoder does not support secure decode.");
     }
-    vpxDecContext = vpxInit();
+    vpxDecContext = vpxInit(disableLoopFilter);
     if (vpxDecContext == 0) {
       throw new VpxDecoderException("Failed to initialize decoder");
     }
@@ -139,7 +140,7 @@ import java.nio.ByteBuffer;
     vpxClose(vpxDecContext);
   }
 
-  private native long vpxInit();
+  private native long vpxInit(boolean disableLoopFilter);
   private native long vpxClose(long context);
   private native long vpxDecode(long context, ByteBuffer encoded, int length);
   private native long vpxSecureDecode(long context, ByteBuffer encoded, int length,

extensions/vp9/src/main/jni/vpx_jni.cc

@@ -283,7 +283,7 @@ static void convert_16_to_8_standard(const vpx_image_t* const img,
   }
 }
 
-DECODER_FUNC(jlong, vpxInit) {
+DECODER_FUNC(jlong, vpxInit, jboolean disableLoopFilter) {
   vpx_codec_ctx_t* context = new vpx_codec_ctx_t();
   vpx_codec_dec_cfg_t cfg = {0, 0, 0};
   cfg.threads = android_getCpuCount();
@@ -295,6 +295,9 @@ DECODER_FUNC(jlong, vpxInit) {
     errorCode = err;
     return 0;
   }
+  if (disableLoopFilter) {
+    vpx_codec_control_(context, VP9_SET_SKIP_LOOP_FILTER, true);
+  }
 
   // Populate JNI References.
   const jclass outputBufferClass = env->FindClass(