Implement handlesTrack using MediaCodecUtil.

library/src/main/java/com/google/android/exoplayer/MediaCodecAudioTrackRenderer.java

@@ -217,9 +217,11 @@ public class MediaCodecAudioTrackRenderer extends MediaCodecTrackRenderer implem
   }
 
   @Override
-  protected boolean handlesTrack(MediaFormat mediaFormat) {
-    // TODO: Check the mime type against the available decoders (b/22996976).
-    return MimeTypes.isAudio(mediaFormat.mimeType);
+  protected boolean handlesTrack(MediaFormat mediaFormat) throws DecoderQueryException {
+    // TODO: Use MediaCodecList.findDecoderForFormat on API 23.
+    String mimeType = mediaFormat.mimeType;
+    return MimeTypes.isAudio(mimeType) && (MimeTypes.AUDIO_UNKNOWN.equals(mimeType)
+        || allowPassthrough(mimeType) || MediaCodecUtil.getDecoderInfo(mimeType, false) != null);
   }
 
   @Override

library/src/main/java/com/google/android/exoplayer/MediaCodecTrackRenderer.java

@@ -256,6 +256,7 @@ public abstract class MediaCodecTrackRenderer extends SampleSourceTrackRenderer
    * @param requiresSecureDecoder Whether a secure decoder is needed for decoding {@code mimeType}.
    * @return {@link DecoderInfo} for decoding media in the specified MIME type, or {@code null} if
    *     no suitable decoder is available.
+   * @throws DecoderQueryException Thrown if there was an error querying decoders.
    */
   protected DecoderInfo getDecoderInfo(String mimeType, boolean requiresSecureDecoder)
       throws DecoderQueryException {

library/src/main/java/com/google/android/exoplayer/MediaCodecVideoTrackRenderer.java

@@ -15,6 +15,7 @@
  */
 package com.google.android.exoplayer;
 
+import com.google.android.exoplayer.MediaCodecUtil.DecoderQueryException;
 import com.google.android.exoplayer.drm.DrmSessionManager;
 import com.google.android.exoplayer.util.MimeTypes;
 import com.google.android.exoplayer.util.TraceUtil;
@@ -268,9 +269,11 @@ public class MediaCodecVideoTrackRenderer extends MediaCodecTrackRenderer {
   }
 
   @Override
-  protected boolean handlesTrack(MediaFormat mediaFormat) {
-    // TODO: Check the mime type against the available decoders (b/22996976).
-    return MimeTypes.isVideo(mediaFormat.mimeType);
+  protected boolean handlesTrack(MediaFormat mediaFormat) throws DecoderQueryException {
+    // TODO: Use MediaCodecList.findDecoderForFormat on API 23.
+    String mimeType = mediaFormat.mimeType;
+    return MimeTypes.isVideo(mimeType) && (MimeTypes.VIDEO_UNKNOWN.equals(mimeType)
+        || MediaCodecUtil.getDecoderInfo(mimeType, false) != null);
   }
 
   @Override

library/src/main/java/com/google/android/exoplayer/SampleSourceTrackRenderer.java

@@ -15,6 +15,7 @@
  */
 package com.google.android.exoplayer;
 
+import com.google.android.exoplayer.MediaCodecUtil.DecoderQueryException;
 import com.google.android.exoplayer.SampleSource.SampleSourceReader;
 
 import java.io.IOException;
@@ -70,7 +71,13 @@ public abstract class SampleSourceTrackRenderer extends TrackRenderer {
       int sourceTrackCount = source.getTrackCount();
       for (int trackIndex = 0; trackIndex < sourceTrackCount; trackIndex++) {
         MediaFormat format = source.getFormat(trackIndex);
-        if (handlesTrack(format)) {
+        boolean handlesTrack;
+        try {
+          handlesTrack = handlesTrack(format);
+        } catch (DecoderQueryException e) {
+          throw new ExoPlaybackException(e);
+        }
+        if (handlesTrack) {
           handledSourceIndices[handledTrackCount] = sourceIndex;
           handledTrackIndices[handledTrackCount] = trackIndex;
           handledTrackCount++;
@@ -101,8 +108,9 @@ public abstract class SampleSourceTrackRenderer extends TrackRenderer {
    *
    * @param mediaFormat The format of the track.
    * @return True if the renderer can handle the track, false otherwise.
+   * @throws DecoderQueryException Thrown if there was an error querying decoders.
    */
-  protected abstract boolean handlesTrack(MediaFormat mediaFormat);
+  protected abstract boolean handlesTrack(MediaFormat mediaFormat) throws DecoderQueryException;
 
   @Override
   protected void onEnabled(int track, long positionUs, boolean joining)

library/src/main/java/com/google/android/exoplayer/chunk/VideoFormatSelectorUtil.java

@@ -50,7 +50,7 @@ public final class VideoFormatSelectorUtil {
    *     mime types.
    * @param filterHdFormats True to filter HD formats. False otherwise.
    * @return An array holding the indices of the selected formats.
-   * @throws DecoderQueryException
+   * @throws DecoderQueryException Thrown if there was an error querying decoders.
    */
   public static int[] selectVideoFormatsForDefaultDisplay(Context context,
       List<? extends FormatWrapper> formatWrappers, String[] allowedContainerMimeTypes,