Expose container track identifier via MediaFormat.

Issue: #770

demo/src/main/java/com/google/android/exoplayer/demo/PlayerActivity.java

@@ -453,12 +453,15 @@ public class PlayerActivity extends Activity implements SurfaceHolder.Callback,
     }
     String trackName;
     if (MimeTypes.isVideo(format.mimeType)) {
-      trackName = joinWithSeparator(buildResolutionString(format), buildBitrateString(format));
+      trackName = joinWithSeparator(joinWithSeparator(buildResolutionString(format),
+          buildBitrateString(format)), buildTrackIdString(format));
     } else if (MimeTypes.isAudio(format.mimeType)) {
-      trackName = joinWithSeparator(joinWithSeparator(buildLanguageString(format),
-          buildAudioPropertyString(format)), buildBitrateString(format));
+      trackName = joinWithSeparator(joinWithSeparator(joinWithSeparator(buildLanguageString(format),
+          buildAudioPropertyString(format)), buildBitrateString(format)),
+          buildTrackIdString(format));
     } else {
-      trackName = joinWithSeparator(buildLanguageString(format), buildBitrateString(format));
+      trackName = joinWithSeparator(joinWithSeparator(buildLanguageString(format),
+          buildBitrateString(format)), buildTrackIdString(format));
     }
     return trackName.length() == 0 ? "unknown" : trackName;
   }
@@ -487,6 +490,11 @@ public class PlayerActivity extends Activity implements SurfaceHolder.Callback,
     return first.length() == 0 ? second : (second.length() == 0 ? first : first + ", " + second);
   }
 
+  private static String buildTrackIdString(MediaFormat format) {
+    return format.trackId == MediaFormat.NO_VALUE ? ""
+        : String.format(Locale.US, " (%d)", format.trackId);
+  }
+
   private boolean onTrackItemClick(MenuItem item, int type) {
     if (player == null || item.getGroupId() != MENU_GROUP_TRACKS) {
       return false;

library/src/androidTest/java/com/google/android/exoplayer/MediaFormatTest.java

@@ -45,17 +45,21 @@ public final class MediaFormatTest extends TestCase {
     initData.add(initData2);
 
     testConversionToFrameworkFormatV16(MediaFormat.createVideoFormat(
-        "video/xyz", 5000, 102400, 1000L, 1280, 720, initData));
+        MediaFormat.NO_VALUE, "video/xyz", 5000, 102400, 1000L, 1280, 720, initData));
     testConversionToFrameworkFormatV16(MediaFormat.createVideoFormat(
-        "video/xyz", 5000, MediaFormat.NO_VALUE, C.UNKNOWN_TIME_US, 1280, 720, null));
+        MediaFormat.NO_VALUE, "video/xyz", 5000, MediaFormat.NO_VALUE, C.UNKNOWN_TIME_US, 1280, 720,
+        null));
     testConversionToFrameworkFormatV16(MediaFormat.createAudioFormat(
-        "audio/xyz", 500, 128, 1000L, 5, 44100, initData, null));
+        MediaFormat.NO_VALUE, "audio/xyz", 500, 128, 1000L, 5, 44100, initData, null));
     testConversionToFrameworkFormatV16(MediaFormat.createAudioFormat(
-        "audio/xyz", 500, MediaFormat.NO_VALUE, C.UNKNOWN_TIME_US, 5, 44100, null, null));
+        MediaFormat.NO_VALUE, "audio/xyz", 500, MediaFormat.NO_VALUE, C.UNKNOWN_TIME_US, 5, 44100,
+        null, null));
     testConversionToFrameworkFormatV16(
-        MediaFormat.createTextFormat("text/xyz", MediaFormat.NO_VALUE, 1000L, "eng"));
+        MediaFormat.createTextFormat(MediaFormat.NO_VALUE, "text/xyz", MediaFormat.NO_VALUE, 1000L,
+            "eng"));
     testConversionToFrameworkFormatV16(
-        MediaFormat.createTextFormat("text/xyz", MediaFormat.NO_VALUE, C.UNKNOWN_TIME_US, null));
+        MediaFormat.createTextFormat(MediaFormat.NO_VALUE, "text/xyz", MediaFormat.NO_VALUE,
+            C.UNKNOWN_TIME_US, null));
   }
 
   @SuppressLint("InlinedApi")

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

@@ -315,10 +315,10 @@ public final class FrameworkSampleSource implements SampleSource, SampleSourceRe
     }
     long durationUs = format.containsKey(android.media.MediaFormat.KEY_DURATION)
         ? format.getLong(android.media.MediaFormat.KEY_DURATION) : C.UNKNOWN_TIME_US;
-    MediaFormat mediaFormat = new MediaFormat(mimeType, MediaFormat.NO_VALUE, maxInputSize,
-        durationUs, width, height, rotationDegrees, MediaFormat.NO_VALUE, channelCount, sampleRate,
-        language, MediaFormat.OFFSET_SAMPLE_RELATIVE, initializationData, false,
-        MediaFormat.NO_VALUE, MediaFormat.NO_VALUE);
+    MediaFormat mediaFormat = new MediaFormat(MediaFormat.NO_VALUE, mimeType, MediaFormat.NO_VALUE,
+        maxInputSize, durationUs, width, height, rotationDegrees, MediaFormat.NO_VALUE,
+        channelCount, sampleRate, language, MediaFormat.OFFSET_SAMPLE_RELATIVE, initializationData,
+        false, MediaFormat.NO_VALUE, MediaFormat.NO_VALUE);
     mediaFormat.setFrameworkFormatV16(format);
     return mediaFormat;
   }

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

@@ -40,6 +40,11 @@ public final class MediaFormat {
   public static final long OFFSET_SAMPLE_RELATIVE = Long.MAX_VALUE;
 
   /**
+   * The identifier for the track represented by the format, or {@link #NO_VALUE} if unknown or not
+   * applicable.
+   */
+  public final int trackId;
+  /**
    * The mime type of the format.
    */
   public final String mimeType;
@@ -134,49 +139,53 @@ public final class MediaFormat {
   private int hashCode;
   private android.media.MediaFormat frameworkMediaFormat;
 
-  public static MediaFormat createVideoFormat(String mimeType, int bitrate, int maxInputSize,
-      long durationUs, int width, int height, List<byte[]> initializationData) {
-    return createVideoFormat(mimeType, bitrate, maxInputSize, durationUs, width, height,
+  public static MediaFormat createVideoFormat(int trackId, String mimeType, int bitrate,
+      int maxInputSize, long durationUs, int width, int height, List<byte[]> initializationData) {
+    return createVideoFormat(trackId, mimeType, bitrate, maxInputSize, durationUs, width, height,
         initializationData, NO_VALUE, NO_VALUE);
   }
 
-  public static MediaFormat createVideoFormat(String mimeType, int bitrate, int maxInputSize,
-      long durationUs, int width, int height, List<byte[]> initializationData, int rotationDegrees,
-      float pixelWidthHeightRatio) {
-    return new MediaFormat(mimeType, bitrate, maxInputSize, durationUs, width, height,
+  public static MediaFormat createVideoFormat(int trackId, String mimeType, int bitrate,
+      int maxInputSize, long durationUs, int width, int height, List<byte[]> initializationData,
+      int rotationDegrees, float pixelWidthHeightRatio) {
+    return new MediaFormat(trackId, mimeType, bitrate, maxInputSize, durationUs, width, height,
         rotationDegrees, pixelWidthHeightRatio, NO_VALUE, NO_VALUE, null, OFFSET_SAMPLE_RELATIVE,
         initializationData, false, NO_VALUE, NO_VALUE);
   }
 
-  public static MediaFormat createAudioFormat(String mimeType, int bitrate, int maxInputSize,
-      long durationUs, int channelCount, int sampleRate, List<byte[]> initializationData,
-      String language) {
-    return new MediaFormat(mimeType, bitrate, maxInputSize, durationUs, NO_VALUE, NO_VALUE,
+  public static MediaFormat createAudioFormat(int trackId, String mimeType, int bitrate,
+      int maxInputSize, long durationUs, int channelCount, int sampleRate,
+      List<byte[]> initializationData, String language) {
+    return new MediaFormat(trackId, mimeType, bitrate, maxInputSize, durationUs, NO_VALUE, NO_VALUE,
         NO_VALUE, NO_VALUE, channelCount, sampleRate, language, OFFSET_SAMPLE_RELATIVE,
         initializationData, false, NO_VALUE, NO_VALUE);
   }
 
-  public static MediaFormat createTextFormat(String mimeType, int bitrate, long durationUs,
-      String language) {
-    return createTextFormat(mimeType, bitrate, durationUs, language, OFFSET_SAMPLE_RELATIVE);
+  public static MediaFormat createTextFormat(int trackId, String mimeType, int bitrate,
+      long durationUs, String language) {
+    return createTextFormat(trackId, mimeType, bitrate, durationUs, language,
+        OFFSET_SAMPLE_RELATIVE);
   }
 
-  public static MediaFormat createTextFormat(String mimeType, int bitrate, long durationUs,
-      String language, long subsampleOffsetUs) {
-    return new MediaFormat(mimeType, bitrate, NO_VALUE, durationUs, NO_VALUE, NO_VALUE, NO_VALUE,
-        NO_VALUE, NO_VALUE, NO_VALUE, language, subsampleOffsetUs, null, false, NO_VALUE, NO_VALUE);
+  public static MediaFormat createTextFormat(int trackId, String mimeType, int bitrate,
+      long durationUs, String language, long subsampleOffsetUs) {
+    return new MediaFormat(trackId, mimeType, bitrate, NO_VALUE, durationUs, NO_VALUE, NO_VALUE,
+        NO_VALUE, NO_VALUE, NO_VALUE, NO_VALUE, language, subsampleOffsetUs, null, false, NO_VALUE,
+        NO_VALUE);
   }
 
-  public static MediaFormat createFormatForMimeType(String mimeType, int bitrate, long durationUs) {
-    return new MediaFormat(mimeType, bitrate, NO_VALUE, durationUs, NO_VALUE, NO_VALUE, NO_VALUE,
-        NO_VALUE, NO_VALUE, NO_VALUE, null, OFFSET_SAMPLE_RELATIVE, null, false, NO_VALUE,
+  public static MediaFormat createFormatForMimeType(int trackId, String mimeType, int bitrate,
+      long durationUs) {
+    return new MediaFormat(trackId, mimeType, bitrate, NO_VALUE, durationUs, NO_VALUE, NO_VALUE,
+        NO_VALUE, NO_VALUE, NO_VALUE, NO_VALUE, null, OFFSET_SAMPLE_RELATIVE, null, false, NO_VALUE,
         NO_VALUE);
   }
 
-  /* package */ MediaFormat(String mimeType, int bitrate, int maxInputSize, long durationUs,
-      int width, int height, int rotationDegrees, float pixelWidthHeightRatio, int channelCount,
-      int sampleRate, String language, long subsampleOffsetUs, List<byte[]> initializationData,
-      boolean adaptive, int maxWidth, int maxHeight) {
+  /* package */ MediaFormat(int trackId, String mimeType, int bitrate, int maxInputSize,
+      long durationUs, int width, int height, int rotationDegrees, float pixelWidthHeightRatio,
+      int channelCount, int sampleRate, String language, long subsampleOffsetUs,
+      List<byte[]> initializationData, boolean adaptive, int maxWidth, int maxHeight) {
+    this.trackId = trackId;
     this.mimeType = Assertions.checkNotEmpty(mimeType);
     this.bitrate = bitrate;
     this.maxInputSize = maxInputSize;
@@ -197,25 +206,25 @@ public final class MediaFormat {
   }
 
   public MediaFormat copyWithMaxVideoDimensions(int maxWidth, int maxHeight) {
-    return new MediaFormat(mimeType, bitrate, maxInputSize, durationUs, width, height,
+    return new MediaFormat(trackId, mimeType, bitrate, maxInputSize, durationUs, width, height,
         rotationDegrees, pixelWidthHeightRatio, channelCount, sampleRate, language,
         subsampleOffsetUs, initializationData, adaptive, maxWidth, maxHeight);
   }
 
   public MediaFormat copyWithSubsampleOffsetUs(long subsampleOffsetUs) {
-    return new MediaFormat(mimeType, bitrate, maxInputSize, durationUs, width, height,
+    return new MediaFormat(trackId, mimeType, bitrate, maxInputSize, durationUs, width, height,
         rotationDegrees, pixelWidthHeightRatio, channelCount, sampleRate, language,
         subsampleOffsetUs, initializationData, adaptive, maxWidth, maxHeight);
   }
 
   public MediaFormat copyWithDurationUs(long durationUs) {
-    return new MediaFormat(mimeType, bitrate, maxInputSize, durationUs, width, height,
+    return new MediaFormat(trackId, mimeType, bitrate, maxInputSize, durationUs, width, height,
         rotationDegrees, pixelWidthHeightRatio, channelCount, sampleRate, language,
         subsampleOffsetUs, initializationData, adaptive, maxWidth, maxHeight);
   }
 
   public MediaFormat copyAsAdaptive() {
-    return new MediaFormat(mimeType, NO_VALUE, NO_VALUE, durationUs, NO_VALUE, NO_VALUE,
+    return new MediaFormat(trackId, mimeType, NO_VALUE, NO_VALUE, durationUs, NO_VALUE, NO_VALUE,
         NO_VALUE, NO_VALUE, NO_VALUE, NO_VALUE, null, OFFSET_SAMPLE_RELATIVE, null, true, maxWidth,
         maxHeight);
   }
@@ -263,16 +272,17 @@ public final class MediaFormat {
 
   @Override
   public String toString() {
-    return "MediaFormat(" + mimeType + ", " + bitrate + ", " + maxInputSize + ", " + width + ", "
-        + height + ", " + rotationDegrees + ", " + pixelWidthHeightRatio + ", " + channelCount
-        + ", " + sampleRate + ", " + language + ", " + durationUs + ", " + adaptive + ", "
-        + maxWidth + ", " + maxHeight + ")";
+    return "MediaFormat(" + trackId + ", " + mimeType + ", " + bitrate + ", " + maxInputSize
+        + ", " + width + ", " + height + ", " + rotationDegrees + ", " + pixelWidthHeightRatio
+        + ", " + channelCount + ", " + sampleRate + ", " + language + ", " + durationUs + ", "
+        + adaptive + ", " + maxWidth + ", " + maxHeight + ")";
   }
 
   @Override
   public int hashCode() {
     if (hashCode == 0) {
       int result = 17;
+      result = 31 * result + trackId;
       result = 31 * result + (mimeType == null ? 0 : mimeType.hashCode());
       result = 31 * result + bitrate;
       result = 31 * result + maxInputSize;
@@ -310,7 +320,8 @@ public final class MediaFormat {
         || pixelWidthHeightRatio != other.pixelWidthHeightRatio
         || maxWidth != other.maxWidth || maxHeight != other.maxHeight
         || channelCount != other.channelCount || sampleRate != other.sampleRate
-        || !Util.areEqual(language, other.language) || !Util.areEqual(mimeType, other.mimeType)
+        || trackId != other.trackId || !Util.areEqual(language, other.language)
+        || !Util.areEqual(mimeType, other.mimeType)
         || initializationData.size() != other.initializationData.size()) {
       return false;
     }

library/src/main/java/com/google/android/exoplayer/dash/DashChunkSource.java

@@ -608,14 +608,15 @@ public class DashChunkSource implements ChunkSource, Output {
       String mediaMimeType, long durationUs) {
     switch (adaptationSetType) {
       case AdaptationSet.TYPE_VIDEO:
-        return MediaFormat.createVideoFormat(mediaMimeType, format.bitrate, MediaFormat.NO_VALUE,
-            durationUs, format.width, format.height, null);
+        return MediaFormat.createVideoFormat(MediaFormat.NO_VALUE, mediaMimeType, format.bitrate,
+            MediaFormat.NO_VALUE, durationUs, format.width, format.height, null);
       case AdaptationSet.TYPE_AUDIO:
-        return MediaFormat.createAudioFormat(mediaMimeType, format.bitrate, MediaFormat.NO_VALUE,
-            durationUs, format.audioChannels, format.audioSamplingRate, null, format.language);
-      case AdaptationSet.TYPE_TEXT:
-        return MediaFormat.createTextFormat(mediaMimeType, format.bitrate, durationUs,
+        return MediaFormat.createAudioFormat(MediaFormat.NO_VALUE, mediaMimeType, format.bitrate,
+            MediaFormat.NO_VALUE, durationUs, format.audioChannels, format.audioSamplingRate, null,
             format.language);
+      case AdaptationSet.TYPE_TEXT:
+        return MediaFormat.createTextFormat(MediaFormat.NO_VALUE, mediaMimeType, format.bitrate,
+            durationUs, format.language);
       default:
         return null;
     }

library/src/main/java/com/google/android/exoplayer/drm/StreamingDrmSessionManager.java

@@ -51,11 +51,6 @@ public class StreamingDrmSessionManager implements DrmSessionManager {
   public interface EventListener {
 
     /**
-     * Invoked each time keys are loaded.
-     */
-    void onDrmKeysLoaded();
-
-    /**
      * Invoked when a drm error occurs.
      *
      * @param e The corresponding exception.
@@ -391,14 +386,6 @@ public class StreamingDrmSessionManager implements DrmSessionManager {
     try {
       mediaDrm.provideKeyResponse(sessionId, (byte[]) response);
       state = STATE_OPENED_WITH_KEYS;
-      if (eventHandler != null && eventListener != null) {
-        eventHandler.post(new Runnable() {
-          @Override
-          public void run() {
-            eventListener.onDrmKeysLoaded();
-          }
-        });
-      }
     } catch (Exception e) {
       onKeysError(e);
     }

library/src/main/java/com/google/android/exoplayer/extractor/mp3/Mp3Extractor.java

@@ -332,9 +332,10 @@ public final class Mp3Extractor implements Extractor {
     if (seeker == null) {
       setupSeeker(extractorInput, headerPosition);
       extractorOutput.seekMap(seeker);
-      trackOutput.format(MediaFormat.createAudioFormat(synchronizedHeader.mimeType,
-          MediaFormat.NO_VALUE, MpegAudioHeader.MAX_FRAME_SIZE_BYTES, seeker.getDurationUs(),
-          synchronizedHeader.channels, synchronizedHeader.sampleRate, null, null));
+      trackOutput.format(MediaFormat.createAudioFormat(MediaFormat.NO_VALUE,
+          synchronizedHeader.mimeType, MediaFormat.NO_VALUE, MpegAudioHeader.MAX_FRAME_SIZE_BYTES,
+          seeker.getDurationUs(), synchronizedHeader.channels, synchronizedHeader.sampleRate, null,
+          null));
     }
 
     return headerPosition;

library/src/main/java/com/google/android/exoplayer/extractor/mp4/AtomParsers.java

@@ -63,8 +63,8 @@ import java.util.List;
         .getContainerAtomOfType(Atom.TYPE_stbl);
 
     Pair<Long, String> mdhdData = parseMdhd(mdia.getLeafAtomOfType(Atom.TYPE_mdhd).data);
-    StsdData stsdData = parseStsd(stbl.getLeafAtomOfType(Atom.TYPE_stsd).data, durationUs,
-        tkhdData.rotationDegrees, mdhdData.second);
+    StsdData stsdData = parseStsd(stbl.getLeafAtomOfType(Atom.TYPE_stsd).data, tkhdData.id,
+        durationUs, tkhdData.rotationDegrees, mdhdData.second);
     return stsdData.mediaFormat == null ? null
         : new Track(tkhdData.id, trackType, mdhdData.first, durationUs, stsdData.mediaFormat,
             stsdData.trackEncryptionBoxes, stsdData.nalUnitLengthFieldLength);
@@ -353,10 +353,15 @@ import java.util.List;
   /**
    * Parses a stsd atom (defined in 14496-12).
    *
+   * @param stsd The stsd atom to parse.
+   * @param trackId The track's identifier in its container.
+   * @param durationUs The duration of the track in microseconds.
+   * @param rotationDegrees The rotation of the track in degrees.
+   * @param language The language of the track.
    * @return An object containing the parsed data.
    */
-  private static StsdData parseStsd(ParsableByteArray stsd, long durationUs, int rotationDegrees,
-      String language) {
+  private static StsdData parseStsd(ParsableByteArray stsd, int trackId, long durationUs,
+      int rotationDegrees, String language) {
     stsd.setPosition(Atom.FULL_HEADER_SIZE);
     int numberOfEntries = stsd.readInt();
     StsdData out = new StsdData(numberOfEntries);
@@ -369,22 +374,22 @@ import java.util.List;
           || childAtomType == Atom.TYPE_encv || childAtomType == Atom.TYPE_mp4v
           || childAtomType == Atom.TYPE_hvc1 || childAtomType == Atom.TYPE_hev1
           || childAtomType == Atom.TYPE_s263) {
-        parseVideoSampleEntry(stsd, childStartPosition, childAtomSize, durationUs, rotationDegrees,
-            out, i);
+        parseVideoSampleEntry(stsd, childStartPosition, childAtomSize, trackId, durationUs,
+            rotationDegrees, out, i);
       } else if (childAtomType == Atom.TYPE_mp4a || childAtomType == Atom.TYPE_enca
           || childAtomType == Atom.TYPE_ac_3 || childAtomType == Atom.TYPE_ec_3
           || childAtomType == Atom.TYPE_dtsc || childAtomType == Atom.TYPE_dtse
           || childAtomType == Atom.TYPE_dtsh || childAtomType == Atom.TYPE_dtsl) {
-        parseAudioSampleEntry(stsd, childAtomType, childStartPosition, childAtomSize, durationUs,
-            language, out, i);
+        parseAudioSampleEntry(stsd, childAtomType, childStartPosition, childAtomSize, trackId,
+            durationUs, language, out, i);
       } else if (childAtomType == Atom.TYPE_TTML) {
-        out.mediaFormat = MediaFormat.createTextFormat(MimeTypes.APPLICATION_TTML,
+        out.mediaFormat = MediaFormat.createTextFormat(trackId, MimeTypes.APPLICATION_TTML,
             MediaFormat.NO_VALUE, durationUs, language);
       } else if (childAtomType == Atom.TYPE_tx3g) {
-        out.mediaFormat = MediaFormat.createTextFormat(MimeTypes.APPLICATION_TX3G,
+        out.mediaFormat = MediaFormat.createTextFormat(trackId, MimeTypes.APPLICATION_TX3G,
             MediaFormat.NO_VALUE, durationUs, language);
       } else if (childAtomType == Atom.TYPE_stpp) {
-        out.mediaFormat = MediaFormat.createTextFormat(MimeTypes.APPLICATION_TTML,
+        out.mediaFormat = MediaFormat.createTextFormat(trackId, MimeTypes.APPLICATION_TTML,
             MediaFormat.NO_VALUE, durationUs, language, 0 /* subsample timing is absolute */);
       }
       stsd.setPosition(childStartPosition + childAtomSize);
@@ -393,7 +398,7 @@ import java.util.List;
   }
 
   private static void parseVideoSampleEntry(ParsableByteArray parent, int position, int size,
-      long durationUs, int rotationDegrees, StsdData out, int entryIndex) {
+      int trackId, long durationUs, int rotationDegrees, StsdData out, int entryIndex) {
     parent.setPosition(position + Atom.HEADER_SIZE);
 
     parent.skipBytes(24);
@@ -455,7 +460,7 @@ import java.util.List;
       return;
     }
 
-    out.mediaFormat = MediaFormat.createVideoFormat(mimeType, MediaFormat.NO_VALUE,
+    out.mediaFormat = MediaFormat.createVideoFormat(trackId, mimeType, MediaFormat.NO_VALUE,
         MediaFormat.NO_VALUE, durationUs, width, height, initializationData, rotationDegrees,
         pixelWidthHeightRatio);
   }
@@ -585,7 +590,7 @@ import java.util.List;
   }
 
   private static void parseAudioSampleEntry(ParsableByteArray parent, int atomType, int position,
-      int size, long durationUs, String language, StsdData out, int entryIndex) {
+      int size, int trackId, long durationUs, String language, StsdData out, int entryIndex) {
     parent.setPosition(position + Atom.HEADER_SIZE);
     parent.skipBytes(16);
     int channelCount = parent.readUnsignedShort();
@@ -635,16 +640,16 @@ import java.util.List;
         // TODO: Choose the right AC-3 track based on the contents of dac3/dec3.
         // TODO: Add support for encryption (by setting out.trackEncryptionBoxes).
         parent.setPosition(Atom.HEADER_SIZE + childStartPosition);
-        out.mediaFormat = Ac3Util.parseAnnexFAc3Format(parent, durationUs, language);
+        out.mediaFormat = Ac3Util.parseAnnexFAc3Format(parent, trackId, durationUs, language);
         return;
       } else if (atomType == Atom.TYPE_ec_3 && childAtomType == Atom.TYPE_dec3) {
         parent.setPosition(Atom.HEADER_SIZE + childStartPosition);
-        out.mediaFormat = Ac3Util.parseAnnexFEAc3Format(parent, durationUs, language);
+        out.mediaFormat = Ac3Util.parseAnnexFEAc3Format(parent, trackId, durationUs, language);
         return;
       } else if ((atomType == Atom.TYPE_dtsc || atomType == Atom.TYPE_dtse
           || atomType == Atom.TYPE_dtsh || atomType == Atom.TYPE_dtsl)
           && childAtomType == Atom.TYPE_ddts) {
-        out.mediaFormat = MediaFormat.createAudioFormat(mimeType, MediaFormat.NO_VALUE,
+        out.mediaFormat = MediaFormat.createAudioFormat(trackId, mimeType, MediaFormat.NO_VALUE,
             MediaFormat.NO_VALUE, durationUs, channelCount, sampleRate, null, language);
         return;
       }
@@ -656,8 +661,8 @@ import java.util.List;
       return;
     }
 
-    out.mediaFormat = MediaFormat.createAudioFormat(mimeType, MediaFormat.NO_VALUE, sampleSize,
-        durationUs, channelCount, sampleRate,
+    out.mediaFormat = MediaFormat.createAudioFormat(trackId, mimeType, MediaFormat.NO_VALUE,
+        sampleSize, durationUs, channelCount, sampleRate,
         initializationData == null ? null : Collections.singletonList(initializationData),
         language);
   }

library/src/main/java/com/google/android/exoplayer/extractor/ts/Ac3Reader.java

@@ -155,7 +155,8 @@ import com.google.android.exoplayer.util.ParsableByteArray;
     sampleSize = Ac3Util.parseFrameSize(headerScratchBits);
     if (mediaFormat == null) {
       headerScratchBits.setPosition(0);
-      mediaFormat = Ac3Util.parseFrameAc3Format(headerScratchBits, C.UNKNOWN_TIME_US, null);
+      mediaFormat = Ac3Util.parseFrameAc3Format(headerScratchBits, MediaFormat.NO_VALUE,
+          C.UNKNOWN_TIME_US, null);
       output.format(mediaFormat);
       bitrate = Ac3Util.getBitrate(sampleSize, mediaFormat.sampleRate);
     }

library/src/main/java/com/google/android/exoplayer/extractor/ts/AdtsReader.java

@@ -170,9 +170,10 @@ import java.util.Collections;
       Pair<Integer, Integer> audioParams = CodecSpecificDataUtil.parseAacAudioSpecificConfig(
           audioSpecificConfig);
 
-      MediaFormat mediaFormat = MediaFormat.createAudioFormat(MimeTypes.AUDIO_AAC,
-          MediaFormat.NO_VALUE, MediaFormat.NO_VALUE, C.UNKNOWN_TIME_US, audioParams.second,
-          audioParams.first, Collections.singletonList(audioSpecificConfig), null);
+      MediaFormat mediaFormat = MediaFormat.createAudioFormat(MediaFormat.NO_VALUE,
+          MimeTypes.AUDIO_AAC, MediaFormat.NO_VALUE, MediaFormat.NO_VALUE, C.UNKNOWN_TIME_US,
+          audioParams.second, audioParams.first, Collections.singletonList(audioSpecificConfig),
+          null);
       frameDurationUs = (C.MICROS_PER_SECOND * 1024L) / mediaFormat.sampleRate;
       output.format(mediaFormat);
       hasOutputFormat = true;

library/src/main/java/com/google/android/exoplayer/extractor/ts/H264Reader.java

@@ -210,9 +210,10 @@ import java.util.List;
     SpsData parsedSpsData = CodecSpecificDataUtil.parseSpsNalUnit(bitArray);
 
     // Construct and output the format.
-    output.format(MediaFormat.createVideoFormat(MimeTypes.VIDEO_H264, MediaFormat.NO_VALUE,
-        MediaFormat.NO_VALUE, C.UNKNOWN_TIME_US, parsedSpsData.width, parsedSpsData.height,
-        initializationData, MediaFormat.NO_VALUE, parsedSpsData.pixelWidthAspectRatio));
+    output.format(MediaFormat.createVideoFormat(MediaFormat.NO_VALUE, MimeTypes.VIDEO_H264,
+        MediaFormat.NO_VALUE, MediaFormat.NO_VALUE, C.UNKNOWN_TIME_US, parsedSpsData.width,
+        parsedSpsData.height, initializationData, MediaFormat.NO_VALUE,
+        parsedSpsData.pixelWidthAspectRatio));
     hasOutputFormat = true;
   }
 

library/src/main/java/com/google/android/exoplayer/extractor/ts/H265Reader.java

@@ -294,9 +294,10 @@ import java.util.Collections;
       }
     }
 
-    output.format(MediaFormat.createVideoFormat(MimeTypes.VIDEO_H265, MediaFormat.NO_VALUE,
-        MediaFormat.NO_VALUE, C.UNKNOWN_TIME_US, picWidthInLumaSamples, picHeightInLumaSamples,
-        Collections.singletonList(csd), MediaFormat.NO_VALUE, pixelWidthHeightRatio));
+    output.format(MediaFormat.createVideoFormat(MediaFormat.NO_VALUE, MimeTypes.VIDEO_H265,
+        MediaFormat.NO_VALUE, MediaFormat.NO_VALUE, C.UNKNOWN_TIME_US, picWidthInLumaSamples,
+        picHeightInLumaSamples, Collections.singletonList(csd), MediaFormat.NO_VALUE,
+        pixelWidthHeightRatio));
     hasOutputFormat = true;
   }
 

library/src/main/java/com/google/android/exoplayer/extractor/ts/Id3Reader.java

@@ -35,8 +35,8 @@ import com.google.android.exoplayer.util.ParsableByteArray;
 
   public Id3Reader(TrackOutput output) {
     super(output);
-    output.format(MediaFormat.createFormatForMimeType(MimeTypes.APPLICATION_ID3,
-        MediaFormat.NO_VALUE, C.UNKNOWN_TIME_US));
+    output.format(MediaFormat.createFormatForMimeType(MediaFormat.NO_VALUE,
+        MimeTypes.APPLICATION_ID3, MediaFormat.NO_VALUE, C.UNKNOWN_TIME_US));
   }
 
   @Override

library/src/main/java/com/google/android/exoplayer/extractor/ts/MpegAudioReader.java

@@ -160,7 +160,7 @@ import com.google.android.exoplayer.util.ParsableByteArray;
     frameSize = header.frameSize;
     if (!hasOutputFormat) {
       frameDurationUs = (C.MICROS_PER_SECOND * header.samplesPerFrame) / header.sampleRate;
-      MediaFormat mediaFormat = MediaFormat.createAudioFormat(header.mimeType,
+      MediaFormat mediaFormat = MediaFormat.createAudioFormat(MediaFormat.NO_VALUE, header.mimeType,
           MediaFormat.NO_VALUE, MpegAudioHeader.MAX_FRAME_SIZE_BYTES, C.UNKNOWN_TIME_US,
           header.channels, header.sampleRate, null, null);
       output.format(mediaFormat);

library/src/main/java/com/google/android/exoplayer/extractor/ts/SeiReader.java

@@ -32,8 +32,8 @@ import com.google.android.exoplayer.util.ParsableByteArray;
 
   public SeiReader(TrackOutput output) {
     super(output);
-    output.format(MediaFormat.createTextFormat(MimeTypes.APPLICATION_EIA608, MediaFormat.NO_VALUE,
-        C.UNKNOWN_TIME_US, null));
+    output.format(MediaFormat.createTextFormat(MediaFormat.NO_VALUE, MimeTypes.APPLICATION_EIA608,
+        MediaFormat.NO_VALUE, C.UNKNOWN_TIME_US, null));
   }
 
   @Override

library/src/main/java/com/google/android/exoplayer/extractor/webm/WebmExtractor.java

@@ -457,7 +457,7 @@ public final class WebmExtractor implements Extractor {
         return;
       case ID_TRACK_ENTRY:
         if (tracks.get(currentTrack.number) == null && isCodecSupported(currentTrack.codecId)) {
-          currentTrack.initializeOutput(extractorOutput, durationUs);
+          currentTrack.initializeOutput(extractorOutput, currentTrack.number, durationUs);
           tracks.put(currentTrack.number, currentTrack);
         } else {
           // We've seen this track entry before, or the codec is unsupported. Do nothing.
@@ -1135,7 +1135,8 @@ public final class WebmExtractor implements Extractor {
     /**
      * Initializes the track with an output.
      */
-    public void initializeOutput(ExtractorOutput output, long durationUs) throws ParserException {
+    public void initializeOutput(ExtractorOutput output, int trackId, long durationUs)
+        throws ParserException {
       String mimeType;
       int maxInputSize = MediaFormat.NO_VALUE;
       List<byte[]> initializationData = null;
@@ -1209,13 +1210,14 @@ public final class WebmExtractor implements Extractor {
 
       MediaFormat format;
       if (MimeTypes.isAudio(mimeType)) {
-        format = MediaFormat.createAudioFormat(mimeType, MediaFormat.NO_VALUE, maxInputSize,
-            durationUs, channelCount, sampleRate, initializationData, language);
+        format = MediaFormat.createAudioFormat(trackId, mimeType, MediaFormat.NO_VALUE,
+            maxInputSize, durationUs, channelCount, sampleRate, initializationData, language);
       } else if (MimeTypes.isVideo(mimeType)) {
-        format = MediaFormat.createVideoFormat(mimeType, MediaFormat.NO_VALUE, maxInputSize,
-            durationUs, width, height, initializationData);
+        format = MediaFormat.createVideoFormat(trackId, mimeType, MediaFormat.NO_VALUE,
+            maxInputSize, durationUs, width, height, initializationData);
       } else if (MimeTypes.APPLICATION_SUBRIP.equals(mimeType)) {
-        format = MediaFormat.createTextFormat(mimeType, MediaFormat.NO_VALUE, durationUs, language);
+        format = MediaFormat.createTextFormat(trackId, mimeType, MediaFormat.NO_VALUE, durationUs,
+            language);
       } else {
         throw new ParserException("Unexpected MIME type.");
       }

library/src/main/java/com/google/android/exoplayer/smoothstreaming/SmoothStreamingChunkSource.java

@@ -398,8 +398,9 @@ public class SmoothStreamingChunkSource implements ChunkSource,
     int mp4TrackType;
     switch (element.type) {
       case StreamElement.TYPE_VIDEO:
-        mediaFormat = MediaFormat.createVideoFormat(format.mimeType, format.bitrate,
-            MediaFormat.NO_VALUE, durationUs, format.width, format.height, Arrays.asList(csdArray));
+        mediaFormat = MediaFormat.createVideoFormat(MediaFormat.NO_VALUE, format.mimeType,
+            format.bitrate, MediaFormat.NO_VALUE, durationUs, format.width, format.height,
+            Arrays.asList(csdArray));
         mp4TrackType = Track.TYPE_vide;
         break;
       case StreamElement.TYPE_AUDIO:
@@ -410,14 +411,14 @@ public class SmoothStreamingChunkSource implements ChunkSource,
           csd = Collections.singletonList(CodecSpecificDataUtil.buildAacAudioSpecificConfig(
               format.audioSamplingRate, format.audioChannels));
         }
-        mediaFormat = MediaFormat.createAudioFormat(format.mimeType, format.bitrate,
-            MediaFormat.NO_VALUE, durationUs, format.audioChannels, format.audioSamplingRate, csd,
-            format.language);
+        mediaFormat = MediaFormat.createAudioFormat(MediaFormat.NO_VALUE, format.mimeType,
+            format.bitrate, MediaFormat.NO_VALUE, durationUs, format.audioChannels,
+            format.audioSamplingRate, csd, format.language);
         mp4TrackType = Track.TYPE_soun;
         break;
       case StreamElement.TYPE_TEXT:
-        mediaFormat = MediaFormat.createTextFormat(format.mimeType, format.bitrate, durationUs,
-            format.language);
+        mediaFormat = MediaFormat.createTextFormat(MediaFormat.NO_VALUE, format.mimeType,
+            format.bitrate, durationUs, format.language);
         mp4TrackType = Track.TYPE_text;
         break;
       default:

library/src/main/java/com/google/android/exoplayer/util/Ac3Util.java

@@ -38,12 +38,13 @@ public final class Ac3Util {
    * ETSI TS 102 366 Annex F.
    *
    * @param data The AC3SpecificBox.
+   * @param trackId The identifier for the track in its container, or {@link MediaFormat#NO_VALUE}.
    * @param durationUs The duration to set on the format, in microseconds.
    * @param language The language to set on the format.
    * @return The AC-3 format parsed from data in the header.
    */
-  public static MediaFormat parseAnnexFAc3Format(ParsableByteArray data, long durationUs,
-      String language) {
+  public static MediaFormat parseAnnexFAc3Format(ParsableByteArray data, int trackId,
+      long durationUs, String language) {
     // fscod (sample rate code)
     int fscod = (data.readUnsignedByte() & 0xC0) >> 6;
     int sampleRate = SAMPLE_RATES[fscod];
@@ -54,7 +55,7 @@ public final class Ac3Util {
     if ((nextByte & 0x04) != 0) {
       channelCount++;
     }
-    return MediaFormat.createAudioFormat(MimeTypes.AUDIO_AC3, MediaFormat.NO_VALUE,
+    return MediaFormat.createAudioFormat(trackId, MimeTypes.AUDIO_AC3, MediaFormat.NO_VALUE,
         MediaFormat.NO_VALUE, durationUs, channelCount, sampleRate, null, language);
   }
 
@@ -63,12 +64,13 @@ public final class Ac3Util {
    * ETSI TS 102 366 Annex F.
    *
    * @param data The EC3SpecificBox.
+   * @param trackId The identifier for the track in its container, or {@link MediaFormat#NO_VALUE}.
    * @param durationUs The duration to set on the format, in microseconds.
    * @param language The language to set on the format.
    * @return The E-AC-3 format parsed from data in the header.
    */
-  public static MediaFormat parseAnnexFEAc3Format(ParsableByteArray data, long durationUs,
-      String language) {
+  public static MediaFormat parseAnnexFEAc3Format(ParsableByteArray data, int trackId,
+      long durationUs, String language) {
     data.skipBytes(2); // Skip data_rate and num_ind_sub.
 
     // Read only the first substream.
@@ -83,7 +85,7 @@ public final class Ac3Util {
     if ((nextByte & 0x01) != 0) {
       channelCount++;
     }
-    return MediaFormat.createAudioFormat(MimeTypes.AUDIO_EC3, MediaFormat.NO_VALUE,
+    return MediaFormat.createAudioFormat(trackId, MimeTypes.AUDIO_EC3, MediaFormat.NO_VALUE,
         MediaFormat.NO_VALUE, durationUs, channelCount, sampleRate, null, language);
   }
 
@@ -92,11 +94,12 @@ public final class Ac3Util {
    * word.
    *
    * @param data Data to parse, positioned at the start of the syncword.
+   * @param trackId The identifier for the track in its container, or {@link MediaFormat#NO_VALUE}.
    * @param durationUs The duration to set on the format, in microseconds.
    * @param language The language to set on the format.
    * @return The AC-3 format parsed from data in the header.
    */
-  public static MediaFormat parseFrameAc3Format(ParsableBitArray data, long durationUs,
+  public static MediaFormat parseFrameAc3Format(ParsableBitArray data, int trackId, long durationUs,
       String language) {
     // Skip syncword and crc1.
     data.skipBits(4 * 8);
@@ -114,7 +117,7 @@ public final class Ac3Util {
       data.skipBits(2); // dsurmod
     }
     boolean lfeon = data.readBit();
-    return MediaFormat.createAudioFormat(MimeTypes.AUDIO_AC3, MediaFormat.NO_VALUE,
+    return MediaFormat.createAudioFormat(trackId, MimeTypes.AUDIO_AC3, MediaFormat.NO_VALUE,
         MediaFormat.NO_VALUE, durationUs, CHANNEL_COUNTS[acmod] + (lfeon ? 1 : 0),
         SAMPLE_RATES[fscod], null, language);
   }