BugFix: Fix DV playback if SDR fallback is added to the manifest

libraries/exoplayer/src/main/java/androidx/media3/exoplayer/mediacodec/MediaCodecUtil.java

@@ -222,6 +222,55 @@ public static List<MediaCodecInfo> getDecoderInfosSoftMatch(
         .build();
   }
 
+  /**
+   * Returns a list of decoders that can decode media in the specified format, in the priority order
+   * specified by the {@link MediaCodecSelector}.
+   * Unlike {@link #getDecoderInfosSoftMatch}, this method may exclude decoders that match the
+   * sample MIME type but do not support relevant format details.
+   *
+   * <p>This list is more complete than {@link #getDecoderInfos}, as it also considers alternative
+   * MIME types that are a close match using {@link #getAlternativeCodecMimeType}.
+   *
+   * @param context The application context.
+   * @param mediaCodecSelector The decoder selector.
+   * @param format The {@link Format} for which a decoder is required.
+   * @param requiresSecureDecoder Whether a secure decoder is required.
+   * @param requiresTunnelingDecoder Whether a tunneling decoder is required.
+   * @return A list of {@link MediaCodecInfo}s corresponding to decoders. May be empty.
+   * @throws DecoderQueryException Thrown if there was an error querying decoders.
+   */
+  @RequiresNonNull("#3.sampleMimeType")
+  public static List<MediaCodecInfo> getDecoderInfosSoftMatchFilteredByFormatSupport(
+      Context context,
+      MediaCodecSelector mediaCodecSelector,
+      Format format,
+      boolean requiresSecureDecoder,
+      boolean requiresTunnelingDecoder)
+      throws DecoderQueryException {
+
+    List<MediaCodecInfo> decoderInfos =
+        mediaCodecSelector.getDecoderInfos(
+            format.sampleMimeType, requiresSecureDecoder, requiresTunnelingDecoder);
+
+    ImmutableList.Builder<MediaCodecInfo> result = ImmutableList.builder();
+
+    for (MediaCodecInfo decoderInfo : decoderInfos) {
+      if (!decoderInfo.isFormatSupported(context, format)) {
+        continue;
+      }
+      result.add(decoderInfo);
+    }
+
+    result.addAll(
+        getAlternativeDecoderInfos(
+            mediaCodecSelector,
+            format,
+            requiresSecureDecoder,
+            requiresTunnelingDecoder));
+
+    return result.build();
+  }
+
   /**
    * Returns a list of decoders for {@linkplain #getAlternativeCodecMimeType alternative MIME types}
    * that can decode samples of the provided {@link Format}, in the priority order specified by the

libraries/exoplayer/src/main/java/androidx/media3/exoplayer/trackselection/DefaultTrackSelector.java

@@ -3937,7 +3937,7 @@ public VideoTrackInfo(
               == RendererCapabilities.HARDWARE_ACCELERATION_SUPPORTED;
       this.resolvedMimeType = resolvedMimeType;
       codecPreferenceScore = getVideoCodecPreferenceScore(resolvedMimeType);
-      isHdr = usesPrimaryDecoder && ColorInfo.isTransferHdr(format.colorInfo);
+      isHdr = usesPrimaryOrFallbackDecoder && ColorInfo.isTransferHdr(format.colorInfo);
       selectionEligibility = evaluateSelectionEligibility(formatSupport, requiredAdaptiveSupport);
     }
 

libraries/exoplayer/src/main/java/androidx/media3/exoplayer/video/MediaCodecVideoRenderer.java

@@ -940,8 +940,13 @@ private static List<MediaCodecInfo> getDecoderInfos(
         return alternativeDecoderInfos;
       }
     }
-    return MediaCodecUtil.getDecoderInfosSoftMatch(
-        mediaCodecSelector, format, requiresSecureDecoder, requiresTunnelingDecoder);
+    if (MimeTypes.VIDEO_DOLBY_VISION.equals(format.sampleMimeType)) {
+      return MediaCodecUtil.getDecoderInfosSoftMatchFilteredByFormatSupport(
+          context, mediaCodecSelector, format, requiresSecureDecoder, requiresTunnelingDecoder);
+    } else {
+      return MediaCodecUtil.getDecoderInfosSoftMatch(
+          mediaCodecSelector, format, requiresSecureDecoder, requiresTunnelingDecoder);
+    }
   }
 
   @RequiresApi(26)