Bring internal/external branches closer.

- Unredact internal error ids.
- Move images.

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

@@ -268,7 +268,7 @@ public class MediaCodecAudioTrackRenderer extends MediaCodecTrackRenderer {
   @Override
   protected void seekTo(long positionUs) throws ExoPlaybackException {
     super.seekTo(positionUs);
-    // TODO: Try and re-use the same AudioTrack instance once [redacted] is fixed.
+    // TODO: Try and re-use the same AudioTrack instance once [Internal: b/7941810] is fixed.
     audioTrack.reset();
     currentPositionUs = Long.MIN_VALUE;
   }

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

@@ -467,7 +467,7 @@ public abstract class MediaCodecTrackRenderer extends TrackRenderer {
     waitingForFirstSyncFrame = true;
     decodeOnlyPresentationTimestamps.clear();
     // Workaround for framework bugs.
-    // See [redacted], [redacted], [redacted].
+    // See [Internal: b/8347958], [Internal: b/8578467], [Internal: b/8543366].
     if (Util.SDK_INT >= 18) {
       codec.flush();
     } else {

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

@@ -103,7 +103,7 @@ public class MediaCodecVideoTrackRenderer extends MediaCodecTrackRenderer {
 
   }
 
-  // TODO: Use MediaFormat constants if these get exposed through the API. See [redacted].
+  // TODO: Use MediaFormat constants if these get exposed through the API. See [Internal: b/14127601].
   private static final String KEY_CROP_LEFT = "crop-left";
   private static final String KEY_CROP_RIGHT = "crop-right";
   private static final String KEY_CROP_BOTTOM = "crop-bottom";

library/src/main/java/com/google/android/exoplayer/parser/mp4/FragmentedMp4Extractor.java

@@ -583,7 +583,7 @@ public final class FragmentedMp4Extractor implements Extractor {
       if (atomType == Atom.TYPE_mp4a || atomType == Atom.TYPE_enca) {
         if (childAtomType == Atom.TYPE_esds) {
           initializationData = parseEsdsFromParent(parent, childStartPosition);
-          // TODO: Do we really need to do this? See [redacted]
+          // TODO: Do we really need to do this? See [Internal: b/10903778]
           // Update sampleRate and channelCount from the AudioSpecificConfig initialization data.
           Pair<Integer, Integer> audioSpecificConfig =
               CodecSpecificDataUtil.parseAudioSpecificConfig(initializationData);

library/src/main/java/com/google/android/exoplayer/text/TextTrackRenderer.java

@@ -247,7 +247,7 @@ public class TextTrackRenderer extends TrackRenderer implements Callback {
   @Override
   protected boolean isReady() {
     // Don't block playback whilst subtitles are loading.
-    // Note: To change this behavior, it will be necessary to consider [redacted].
+    // Note: To change this behavior, it will be necessary to consider [Internal: b/12949941].
     return true;
   }