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  3. com.google.android.exoplayer2.util.Util

Java 类com.google.android.exoplayer2.util.Util 实例源码

项目：react-native-videoplayer    文件：ReactExoplayerView.java    
private MediaSource buildMediaSource(Uri uri, String overrideExtension) {
    int type = Util.inferContentType(!TextUtils.isEmpty(overrideExtension) ? "." + overrideExtension
            : uri.getLastPathSegment());
    switch (type) {
        case C.TYPE_SS:
            return new SsMediaSource(uri, buildDataSourceFactory(false),
                    new DefaultSsChunkSource.Factory(mediaDataSourceFactory), mainHandler, null);
        case C.TYPE_DASH:
            return new DashMediaSource(uri, buildDataSourceFactory(false),
                    new DefaultDashChunkSource.Factory(mediaDataSourceFactory), mainHandler, null);
        case C.TYPE_HLS:
            return new HlsMediaSource(uri, mediaDataSourceFactory, mainHandler, null);
        case C.TYPE_OTHER:
            return new ExtractorMediaSource(uri, mediaDataSourceFactory, new DefaultExtractorsFactory(),
                    mainHandler, null);
        default: {
            throw new IllegalStateException("Unsupported type: " + type);
        }
    }
}
项目：yjPlay    文件：MyDefaultDataSource.java    
@Override
public long open(DataSpec dataSpec) throws IOException {
    Assertions.checkState(dataSource == null);
    String scheme = dataSpec.uri.getScheme();
    if (Util.isLocalFileUri(dataSpec.uri)) {
        if (dataSpec.uri.getPath().startsWith("/android_asset/")) {
            dataSource = getAssetDataSource();
        } else {
            dataSource = getFileDataSource();
        }
    } else if (SCHEME_ASSET.equals(scheme)) {
        dataSource = getAssetDataSource();
    } else if (SCHEME_CONTENT.equals(scheme)) {
        dataSource = getContentDataSource();
    } else if (SCHEME_RTMP.equals(scheme)) {
        dataSource = getRtmpDataSource();
    } else {
        dataSource = baseDataSource;
    }
    // Open the source and return.
    return dataSource.open(dataSpec);
}
项目：chaosflix    文件：PlayerActivity.java    
private MediaSource buildMediaSource(Uri uri, String overrideExtension) {
    DataSource.Factory mediaDataSourceFactory = buildDataSourceFactory(true);
    int type = TextUtils.isEmpty(overrideExtension) ? Util.inferContentType(uri)
            : Util.inferContentType("." + overrideExtension);
    switch (type) {
        case C.TYPE_SS:
            return new SsMediaSource(uri, buildDataSourceFactory(false),
                    new DefaultSsChunkSource.Factory(mediaDataSourceFactory), mainHandler, null);
        case C.TYPE_DASH:
            return new DashMediaSource(uri, buildDataSourceFactory(false),
                    new DefaultDashChunkSource.Factory(mediaDataSourceFactory), mainHandler, null);
        case C.TYPE_HLS:
            return new HlsMediaSource(uri, mediaDataSourceFactory, mainHandler, null);
        case C.TYPE_OTHER:
            return new ExtractorMediaSource(uri, mediaDataSourceFactory, new DefaultExtractorsFactory(),
                    mainHandler, null);
        default: {
            throw new IllegalStateException("Unsupported type: " + type);
        }
    }
}
项目：PreviewSeekBar    文件：CustomTimeBar.java    
@TargetApi(21)
@Override
public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) {
    super.onInitializeAccessibilityNodeInfo(info);
    info.setClassName(com.google.android.exoplayer2.ui.DefaultTimeBar.class.getCanonicalName());
    info.setContentDescription(getProgressText());
    if (duration <= 0) {
        return;
    }
    if (Util.SDK_INT >= 21) {
        info.addAction(AccessibilityNodeInfo.AccessibilityAction.ACTION_SCROLL_FORWARD);
        info.addAction(AccessibilityNodeInfo.AccessibilityAction.ACTION_SCROLL_BACKWARD);
    } else if (Util.SDK_INT >= 16) {
        info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_FORWARD);
        info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD);
    }
}
项目：PreviewSeekBar    文件：CustomTimeBar.java    
private void drawPlayhead(Canvas canvas) {
    if (duration <= 0) {
        return;
    }
    int playheadX = Util.constrainValue(scrubberBar.right, scrubberBar.left, progressBar.right);
    int playheadY = scrubberBar.centerY();
    if (scrubberDrawable == null) {
        int scrubberSize = (scrubbing || isFocused()) ? scrubberDraggedSize
                : (isEnabled() ? scrubberEnabledSize : scrubberDisabledSize);
        int playheadRadius = scrubberSize / 2;
        canvas.drawCircle(playheadX, playheadY, playheadRadius, scrubberPaint);
    } else {
        int scrubberDrawableWidth = scrubberDrawable.getIntrinsicWidth();
        int scrubberDrawableHeight = scrubberDrawable.getIntrinsicHeight();
        scrubberDrawable.setBounds(
                playheadX - scrubberDrawableWidth / 2,
                playheadY - scrubberDrawableHeight / 2,
                playheadX + scrubberDrawableWidth / 2,
                playheadY + scrubberDrawableHeight / 2);
        scrubberDrawable.draw(canvas);
    }
}
项目：PreviewSeekBar    文件：CustomTimeBar.java    
/**
 * Incrementally scrubs the position by {@code positionChange}.
 *
 * @param positionChange The change in the scrubber position, in milliseconds. May be negative.
 * @return Returns whether the scrubber position changed.
 */
private boolean scrubIncrementally(long positionChange) {
    if (duration <= 0) {
        return false;
    }
    long scrubberPosition = getScrubberPosition();
    scrubPosition = Util.constrainValue(scrubberPosition + positionChange, 0, duration);
    if (scrubPosition == scrubberPosition) {
        return false;
    }
    if (!scrubbing) {
        startScrubbing();
    }
    for (OnScrubListener listener : listeners) {
        listener.onScrubMove(this, scrubPosition);
    }
    update();
    return true;
}
项目：ExoPlayer-Offline    文件：SampleChooserActivity.java    
@Override
protected List<SampleGroup> doInBackground(String... uris) {
  List<SampleGroup> result = new ArrayList<>();
  Context context = getApplicationContext();
  String userAgent = Util.getUserAgent(context, "ExoPlayerDemo");
  DataSource dataSource = new DefaultDataSource(context, null, userAgent, false);
  for (String uri : uris) {
    DataSpec dataSpec = new DataSpec(Uri.parse(uri));
    InputStream inputStream = new DataSourceInputStream(dataSource, dataSpec);
    try {
      readSampleGroups(new JsonReader(new InputStreamReader(inputStream, "UTF-8")), result);
    } catch (Exception e) {
      Log.e(TAG, "Error loading sample list: " + uri, e);
      sawError = true;
    } finally {
      Util.closeQuietly(dataSource);
    }
  }
  return result;
}
项目：PreviewSeekBar-master    文件：CustomTimeBar.java    
/**
 * Incrementally scrubs the position by {@code positionChange}.
 *
 * @param positionChange The change in the scrubber position, in milliseconds. May be negative.
 * @return Returns whether the scrubber position changed.
 */
private boolean scrubIncrementally(long positionChange) {
    if (duration <= 0) {
        return false;
    }
    long scrubberPosition = getScrubberPosition();
    scrubPosition = Util.constrainValue(scrubberPosition + positionChange, 0, duration);
    if (scrubPosition == scrubberPosition) {
        return false;
    }
    if (!scrubbing) {
        startScrubbing();
    }

    for (OnScrubListener listener : listeners) {
        listener.onScrubMove(this, scrubPosition);
    }
    update();
    return true;
}
项目：ExoPlayer-Offline    文件：PlayerActivity.java    
private MediaSource buildMediaSource(Uri uri, String overrideExtension) {
    int type = Util.inferContentType(!TextUtils.isEmpty(overrideExtension) ? "." + overrideExtension
            : uri.getLastPathSegment());
    switch (type) {
        case C.TYPE_SS:
            return new SsMediaSource(uri, buildDataSourceFactory(false),
                    new DefaultSsChunkSource.Factory(mediaDataSourceFactory), mainHandler, eventLogger);
        case C.TYPE_DASH:
            return new DashMediaSource(uri, buildDataSourceFactory(false),
                    new DefaultDashChunkSource.Factory(mediaDataSourceFactory), mainHandler, eventLogger);
        case C.TYPE_HLS:
            return new HlsMediaSource(uri, mediaDataSourceFactory, mainHandler, eventLogger);
        case C.TYPE_OTHER:
            return new ExtractorMediaSource(uri, mediaDataSourceFactory, new DefaultExtractorsFactory(),
                    mainHandler, eventLogger);
        default: {
            throw new IllegalStateException("Unsupported type: " + type);
        }
    }
}
项目：chaosflix    文件：ExoPlayerFragment.java    
private SimpleExoPlayer setupPlayer(){
    Log.d(TAG,"Setting up Player.");
    videoView.setKeepScreenOn(true);

    mUserAgent = Util.getUserAgent(getContext(), getResources().getString(R.string.app_name));

    AdaptiveTrackSelection.Factory trackSelectorFactory
            = new AdaptiveTrackSelection.Factory(BANDWIDTH_METER);
    DefaultTrackSelector trackSelector = new DefaultTrackSelector(trackSelectorFactory);
    LoadControl loadControl = new DefaultLoadControl();
    DefaultRenderersFactory renderersFactory
            = new DefaultRenderersFactory(getContext(), null, DefaultRenderersFactory.EXTENSION_RENDERER_MODE_OFF);


    exoPlayer = ExoPlayerFactory.newSimpleInstance(renderersFactory, trackSelector, loadControl);
    MyListener listener = new MyListener(exoPlayer, this);
    exoPlayer.addVideoListener(listener);
    exoPlayer.addListener(listener);

    exoPlayer.setPlayWhenReady(mPlaybackState);

    exoPlayer.prepare(buildMediaSource(Uri.parse(mRecording.getRecordingUrl()),""));
    return exoPlayer;
}
项目：Exoplayer2Radio    文件：DataChunk.java    
@Override
public final void load() throws IOException, InterruptedException {
  try {
    dataSource.open(dataSpec);
    limit = 0;
    int bytesRead = 0;
    while (bytesRead != C.RESULT_END_OF_INPUT && !loadCanceled) {
      maybeExpandData();
      bytesRead = dataSource.read(data, limit, READ_GRANULARITY);
      if (bytesRead != -1) {
        limit += bytesRead;
      }
    }
    if (!loadCanceled) {
      consume(data, limit);
    }
  } finally {
    Util.closeQuietly(dataSource);
  }
}
项目：Exoplayer2Radio    文件：DefaultTrackSelector.java    
/**
 * Given viewport dimensions and video dimensions, computes the maximum size of the video as it
 * will be rendered to fit inside of the viewport.
 */
private static Point getMaxVideoSizeInViewport(boolean orientationMayChange, int viewportWidth,
    int viewportHeight, int videoWidth, int videoHeight) {
  if (orientationMayChange && (videoWidth > videoHeight) != (viewportWidth > viewportHeight)) {
    // Rotation is allowed, and the video will be larger in the rotated viewport.
    int tempViewportWidth = viewportWidth;
    viewportWidth = viewportHeight;
    viewportHeight = tempViewportWidth;
  }

  if (videoWidth * viewportHeight >= videoHeight * viewportWidth) {
    // Horizontal letter-boxing along top and bottom.
    return new Point(viewportWidth, Util.ceilDivide(viewportWidth * videoHeight, videoWidth));
  } else {
    // Vertical letter-boxing along edges.
    return new Point(Util.ceilDivide(viewportHeight * videoWidth, videoHeight), viewportHeight);
  }
}
项目：BakingApp    文件：StepDetailFragment.java    
private void initializePlayer(Uri videoUri){
    if (mExoPlayer == null){
        TrackSelector trackSelector = new DefaultTrackSelector();
        LoadControl loadControl = new DefaultLoadControl();
        mExoPlayer = ExoPlayerFactory.newSimpleInstance(getContext(), trackSelector, loadControl);
        mExoPlayer.addListener(this);
        mExoPlayer.seekTo(currentPosition);
        mPlayerView.setPlayer(mExoPlayer);
        String userAgent = Util.getUserAgent(getContext(), "Tasty");
        MediaSource mediaSource = new ExtractorMediaSource(videoUri, new DefaultDataSourceFactory(
                getContext(), userAgent), new DefaultExtractorsFactory(), null, null);
        mExoPlayer.prepare(mediaSource);
        if (playWhenReady) mExoPlayer.setPlayWhenReady(true);
        else mExoPlayer.setPlayWhenReady(false);
    }
}
项目：Exoplayer2Radio    文件：XingSeeker.java    
@Override
public long getTimeUs(long position) {
  if (!isSeekable() || position < firstFramePosition) {
    return 0L;
  }
  double offsetByte = 256.0 * (position - firstFramePosition) / sizeBytes;
  int previousTocPosition =
      Util.binarySearchFloor(tableOfContents, (long) offsetByte, true, false) + 1;
  long previousTime = getTimeUsForTocPosition(previousTocPosition);

  // Linearly interpolate the time taking into account the next entry.
  long previousByte = previousTocPosition == 0 ? 0 : tableOfContents[previousTocPosition - 1];
  long nextByte = previousTocPosition == 99 ? 256 : tableOfContents[previousTocPosition];
  long nextTime = getTimeUsForTocPosition(previousTocPosition + 1);
  long timeOffset = nextByte == previousByte ? 0 : (long) ((nextTime - previousTime)
      * (offsetByte - previousByte) / (nextByte - previousByte));
  return previousTime + timeOffset;
}
项目：ExoPlayer-Offline    文件：DashTest.java    
public void testWidevineOfflineLicense() throws Exception {
  if (Util.SDK_INT < 22) {
    // Pass.
    return;
  }
  String streamName = "test_widevine_h264_fixed_offline";
  DashHostedTestEncParameters parameters = newDashHostedTestEncParameters(
      WIDEVINE_H264_MANIFEST_PREFIX, true, MimeTypes.VIDEO_H264);
  TestOfflineLicenseHelper helper = new TestOfflineLicenseHelper(parameters);
  try {
    byte[] keySetId = helper.downloadLicense();
    testDashPlayback(getActivity(), streamName, null, true, parameters,
        WIDEVINE_AAC_AUDIO_REPRESENTATION_ID, false, keySetId, WIDEVINE_H264_CDD_FIXED);
    helper.renewLicense();
  } finally {
    helper.releaseResources();
  }
}
项目：ExoPlayer-Offline    文件：DashTest.java    
public void testWidevineOfflineLicenseExpiresOnPause() throws Exception {
  if (Util.SDK_INT < 22) {
    // Pass.
    return;
  }
  String streamName = "test_widevine_h264_fixed_offline";
  DashHostedTestEncParameters parameters = newDashHostedTestEncParameters(
      WIDEVINE_H264_MANIFEST_PREFIX, true, MimeTypes.VIDEO_H264);
  TestOfflineLicenseHelper helper = new TestOfflineLicenseHelper(parameters);
  try {
    byte[] keySetId = helper.downloadLicense();
    // During playback pause until the license expires then continue playback
    Pair<Long, Long> licenseDurationRemainingSec = helper.getLicenseDurationRemainingSec();
    long licenseDuration = licenseDurationRemainingSec.first;
    assertTrue("License duration should be less than 30 sec. "
        + "Server settings might have changed.", licenseDuration < 30);
    ActionSchedule schedule = new ActionSchedule.Builder(TAG)
        .delay(3000).pause().delay(licenseDuration * 1000 + 2000).play().build();
    // DefaultDrmSessionManager should renew the license and stream play fine
    testDashPlayback(getActivity(), streamName, schedule, true, parameters,
        WIDEVINE_AAC_AUDIO_REPRESENTATION_ID, false, keySetId, WIDEVINE_H264_CDD_FIXED);
  } finally {
    helper.releaseResources();
  }
}
项目：PreviewSeekBar-master    文件：CustomTimeBar.java    
@TargetApi(21)
@Override
public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) {
    super.onInitializeAccessibilityNodeInfo(info);
    info.setClassName(com.google.android.exoplayer2.ui.DefaultTimeBar.class.getCanonicalName());
    info.setContentDescription(getProgressText());
    if (duration <= 0) {
        return;
    }
    if (Util.SDK_INT >= 21) {
        info.addAction(AccessibilityNodeInfo.AccessibilityAction.ACTION_SCROLL_FORWARD);
        info.addAction(AccessibilityNodeInfo.AccessibilityAction.ACTION_SCROLL_BACKWARD);
    } else if (Util.SDK_INT >= 16) {
        info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_FORWARD);
        info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD);
    }
}
项目：chaosflix-leanback    文件：PlayerActivity.java    
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_playback);
    ButterKnife.bind(this);
    mSurfaceView.setKeepScreenOn(true);

    mPlaybackControllFragment = (OverlayFragment) getFragmentManager().findFragmentById(R.id.playback_controls_fragment);

    mUserAgent = Util.getUserAgent(this, getResources().getString(R.string.app_name));
    synchronized (this) {
        if (player == null) {
            setupPlayer();
        }
    }
}
项目：chaosflix-leanback    文件：PlayerActivity.java    
private MediaSource buildMediaSource(Uri uri, String overrideExtension) {
    DataSource.Factory mediaDataSourceFactory = buildDataSourceFactory(true);
    int type = TextUtils.isEmpty(overrideExtension) ? Util.inferContentType(uri)
            : Util.inferContentType("." + overrideExtension);
    switch (type) {
        case C.TYPE_SS:
            return new SsMediaSource(uri, buildDataSourceFactory(false),
                    new DefaultSsChunkSource.Factory(mediaDataSourceFactory), mainHandler, null);
        case C.TYPE_DASH:
            return new DashMediaSource(uri, buildDataSourceFactory(false),
                    new DefaultDashChunkSource.Factory(mediaDataSourceFactory), mainHandler, null);
        case C.TYPE_HLS:
            return new HlsMediaSource(uri, mediaDataSourceFactory, mainHandler, null);
        case C.TYPE_OTHER:
            return new ExtractorMediaSource(uri, mediaDataSourceFactory, new DefaultExtractorsFactory(),
                    mainHandler, null);
        default: {
            throw new IllegalStateException("Unsupported type: " + type);
        }
    }
}
项目：yjPlay    文件：VideoPlayUtils.java    
/**
 * Infer content type int.
 *
 * @param fileName the file name
 * @return the int
 */
@C.ContentType
public static int inferContentType(String fileName) {
    fileName = Util.toLowerInvariant(fileName);
    if (fileName.matches(".*m3u8.*")) {
        return C.TYPE_HLS;
    } else if (fileName.matches(".*mpd.*")) {
        return C.TYPE_DASH;
    } else if (fileName.matches(".*\\.ism(l)?(/manifest(\\(.+\\))?)?")) {
        return C.TYPE_SS;
    } else {
        return C.TYPE_OTHER;
    }
}
项目：mobile-app-dev-book    文件：MediaViewActivity.java    
private void initExoPlayer() {
    DefaultBandwidthMeter bwMeter = new DefaultBandwidthMeter();
    AdaptiveTrackSelection.Factory trackFactory = new AdaptiveTrackSelection.Factory(bwMeter);
    DefaultTrackSelector trackSelector = new DefaultTrackSelector(trackFactory);
    player = ExoPlayerFactory.newSimpleInstance(this, trackSelector);
    videoView.setPlayer(player);

    DataSource.Factory dsFactory = new DefaultDataSourceFactory(getBaseContext(),
            Util.getUserAgent(this, "Traxy"), bwMeter);
    ExtractorsFactory exFactory = new DefaultExtractorsFactory();
    Uri mediaUri = Uri.parse(entry.getUrl());
    MediaSource videoSource = new ExtractorMediaSource(mediaUri,
            dsFactory, exFactory, null, null);
    player.prepare(videoSource);
}
项目：Exoplayer2Radio    文件：DefaultExtractorInput.java    
/**
 * Ensures {@code peekBuffer} is large enough to store at least {@code length} bytes from the
 * current peek position.
 */
private void ensureSpaceForPeek(int length) {
  int requiredLength = peekBufferPosition + length;
  if (requiredLength > peekBuffer.length) {
    int newPeekCapacity = Util.constrainValue(peekBuffer.length * 2,
        requiredLength + PEEK_MIN_FREE_SPACE_AFTER_RESIZE, requiredLength + PEEK_MAX_FREE_SPACE);
    peekBuffer = Arrays.copyOf(peekBuffer, newPeekCapacity);
  }
}
项目：Exoplayer2Radio    文件：DrmInitData.java    
@Override
public boolean equals(Object obj) {
  if (!(obj instanceof SchemeData)) {
    return false;
  }
  if (obj == this) {
    return true;
  }
  SchemeData other = (SchemeData) obj;
  return mimeType.equals(other.mimeType) && Util.areEqual(uuid, other.uuid)
      && Arrays.equals(data, other.data);
}
项目：yjPlay    文件：DefaultTimeBar.java    
private void drawTimeBar(Canvas canvas) {
  int progressBarHeight = progressBar.height();
  int barTop = progressBar.centerY() - progressBarHeight / 2;
  int barBottom = barTop + progressBarHeight;
  if (duration <= 0) {
    canvas.drawRect(progressBar.left, barTop, progressBar.right, barBottom, unplayedPaint);
    return;
  }
  int bufferedLeft = bufferedBar.left;
  int bufferedRight = bufferedBar.right;
  int progressLeft = Math.max(Math.max(progressBar.left, bufferedRight), scrubberBar.right);
  if (progressLeft < progressBar.right) {
    canvas.drawRect(progressLeft, barTop, progressBar.right, barBottom, unplayedPaint);
  }
  bufferedLeft = Math.max(bufferedLeft, scrubberBar.right);
  if (bufferedRight > bufferedLeft) {
    canvas.drawRect(bufferedLeft, barTop, bufferedRight, barBottom, bufferedPaint);
  }
  if (scrubberBar.width() > 0) {
    canvas.drawRect(scrubberBar.left, barTop, scrubberBar.right, barBottom, playedPaint);
  }
  int adMarkerOffset = adMarkerWidth / 2;
  for (int i = 0; i < adGroupCount; i++) {
    long adGroupTimeMs = Util.constrainValue(adGroupTimesMs[i], 0, duration);
    int markerPositionOffset =
        (int) (progressBar.width() * adGroupTimeMs / duration) - adMarkerOffset;
    int markerLeft = progressBar.left + Math.min(progressBar.width() - adMarkerWidth,
        Math.max(0, markerPositionOffset));
    Paint paint = playedAdGroups[i] ? playedAdMarkerPaint : adMarkerPaint;
    canvas.drawRect(markerLeft, barTop, markerLeft + adMarkerWidth, barBottom, paint);
  }
}
项目：Exoplayer2Radio    文件：AudioTrack.java    
/**
 * @param audioCapabilities The audio capabilities for playback on this device. May be null if the
 *     default capabilities (no encoded audio passthrough support) should be assumed.
 * @param audioProcessors An array of {@link AudioProcessor}s that will process PCM audio before
 *     output. May be empty.
 * @param listener Listener for audio track events.
 */
public AudioTrack(AudioCapabilities audioCapabilities, AudioProcessor[] audioProcessors,
    Listener listener) {
  this.audioCapabilities = audioCapabilities;
  this.listener = listener;
  releasingConditionVariable = new ConditionVariable(true);
  if (Util.SDK_INT >= 18) {
    try {
      getLatencyMethod =
          android.media.AudioTrack.class.getMethod("getLatency", (Class<?>[]) null);
    } catch (NoSuchMethodException e) {
      // There's no guarantee this method exists. Do nothing.
    }
  }
  if (Util.SDK_INT >= 19) {
    audioTrackUtil = new AudioTrackUtilV19();
  } else {
    audioTrackUtil = new AudioTrackUtil();
  }
  channelMappingAudioProcessor = new ChannelMappingAudioProcessor();
  sonicAudioProcessor = new SonicAudioProcessor();
  availableAudioProcessors = new AudioProcessor[3 + audioProcessors.length];
  availableAudioProcessors[0] = new ResamplingAudioProcessor();
  availableAudioProcessors[1] = channelMappingAudioProcessor;
  System.arraycopy(audioProcessors, 0, availableAudioProcessors, 2, audioProcessors.length);
  availableAudioProcessors[2 + audioProcessors.length] = sonicAudioProcessor;
  playheadOffsets = new long[MAX_PLAYHEAD_OFFSET_COUNT];
  volume = 1.0f;
  startMediaTimeState = START_NOT_SET;
  streamType = C.STREAM_TYPE_DEFAULT;
  audioSessionId = C.AUDIO_SESSION_ID_UNSET;
  playbackParameters = PlaybackParameters.DEFAULT;
  drainingAudioProcessorIndex = C.INDEX_UNSET;
  this.audioProcessors = new AudioProcessor[0];
  outputBuffers = new ByteBuffer[0];
  playbackParametersCheckpoints = new LinkedList<>();
}
项目：Exoplayer2Radio    文件：Sniffer.java    
/**
 * Returns whether {@code brand} is an ftyp atom brand that is compatible with the MP4 extractors.
 */
private static boolean isCompatibleBrand(int brand) {
  // Accept all brands starting '3gp'.
  if (brand >>> 8 == Util.getIntegerCodeForString("3gp")) {
    return true;
  }
  for (int compatibleBrand : COMPATIBLE_BRANDS) {
    if (compatibleBrand == brand) {
      return true;
    }
  }
  return false;
}
项目：Exoplayer2Radio    文件：XingSeeker.java    
/**
 * Returns a {@link XingSeeker} for seeking in the stream, if required information is present.
 * Returns {@code null} if not. On returning, {@code frame}'s position is not specified so the
 * caller should reset it.
 *
 * @param mpegAudioHeader The MPEG audio header associated with the frame.
 * @param frame The data in this audio frame, with its position set to immediately after the
 *    'Xing' or 'Info' tag.
 * @param position The position (byte offset) of the start of this frame in the stream.
 * @param inputLength The length of the stream in bytes.
 * @return A {@link XingSeeker} for seeking in the stream, or {@code null} if the required
 *     information is not present.
 */
public static XingSeeker create(MpegAudioHeader mpegAudioHeader, ParsableByteArray frame,
    long position, long inputLength) {
  int samplesPerFrame = mpegAudioHeader.samplesPerFrame;
  int sampleRate = mpegAudioHeader.sampleRate;
  long firstFramePosition = position + mpegAudioHeader.frameSize;

  int flags = frame.readInt();
  int frameCount;
  if ((flags & 0x01) != 0x01 || (frameCount = frame.readUnsignedIntToInt()) == 0) {
    // If the frame count is missing/invalid, the header can't be used to determine the duration.
    return null;
  }
  long durationUs = Util.scaleLargeTimestamp(frameCount, samplesPerFrame * C.MICROS_PER_SECOND,
      sampleRate);
  if ((flags & 0x06) != 0x06) {
    // If the size in bytes or table of contents is missing, the stream is not seekable.
    return new XingSeeker(firstFramePosition, durationUs, inputLength);
  }

  long sizeBytes = frame.readUnsignedIntToInt();
  frame.skipBytes(1);
  long[] tableOfContents = new long[99];
  for (int i = 0; i < 99; i++) {
    tableOfContents[i] = frame.readUnsignedByte();
  }

  // TODO: Handle encoder delay and padding in 3 bytes offset by xingBase + 213 bytes:
  // delay = (frame.readUnsignedByte() << 4) + (frame.readUnsignedByte() >> 4);
  // padding = ((frame.readUnsignedByte() & 0x0F) << 8) + frame.readUnsignedByte();
  return new XingSeeker(firstFramePosition, durationUs, inputLength, tableOfContents,
      sizeBytes, mpegAudioHeader.frameSize);
}
项目：Exoplayer2Radio    文件：PrivFrame.java    
@Override
public boolean equals(Object obj) {
  if (this == obj) {
    return true;
  }
  if (obj == null || getClass() != obj.getClass()) {
    return false;
  }
  PrivFrame other = (PrivFrame) obj;
  return Util.areEqual(owner, other.owner) && Arrays.equals(privateData, other.privateData);
}
项目：Exoplayer2Radio    文件：HttpDataSource.java    
@Override
public boolean evaluate(String contentType) {
  contentType = Util.toLowerInvariant(contentType);
  return !TextUtils.isEmpty(contentType)
      && (!contentType.contains("text") || contentType.contains("text/vtt"))
      && !contentType.contains("html") && !contentType.contains("xml");
}
项目：UdacityBakingAndroid    文件：StepFragment.java    
private void initializePlayer(Uri mediaUri) {
    if (mExoPlayer == null) {
        // Create an instance of the ExoPlayer.
        TrackSelector trackSelector = new DefaultTrackSelector();
        LoadControl loadControl = new DefaultLoadControl();
        mExoPlayer = ExoPlayerFactory.newSimpleInstance(getContext(), trackSelector, loadControl);
        binding.exoStepFragmentPlayerView.setPlayer(mExoPlayer);
        mExoPlayer.addListener(this);
        String userAgent = Util.getUserAgent(getContext(), "RecipeStepVideo");
        MediaSource mediaSource = new ExtractorMediaSource(mediaUri, new DefaultDataSourceFactory(
                getContext(), userAgent), new DefaultExtractorsFactory(), null, null);
        mExoPlayer.prepare(mediaSource);
        mExoPlayer.setPlayWhenReady(true);
    }
}
项目：Exoplayer2Radio    文件：TextInformationFrame.java    
@Override
public boolean equals(Object obj) {
  if (this == obj) {
    return true;
  }
  if (obj == null || getClass() != obj.getClass()) {
    return false;
  }
  TextInformationFrame other = (TextInformationFrame) obj;
  return id.equals(other.id) && Util.areEqual(description, other.description)
      && Util.areEqual(value, other.value);
}
项目：TubiPlayer    文件：TubiPlayerActivity.java    
@Override
public void onResume() {
    super.onResume();
    if ((Util.SDK_INT <= 23 || mTubiExoPlayer == null)) {
        setupExo();
    }
}
项目：Exoplayer2Radio    文件：EventMessage.java    
@Override
public boolean equals(Object obj) {
  if (this == obj) {
    return true;
  }
  if (obj == null || getClass() != obj.getClass()) {
    return false;
  }
  EventMessage other = (EventMessage) obj;
  return durationMs == other.durationMs && id == other.id
      && Util.areEqual(schemeIdUri, other.schemeIdUri) && Util.areEqual(value, other.value)
      && Arrays.equals(messageData, other.messageData);
}
项目：Exoplayer2Radio    文件：MediaCodecVideoRenderer.java    
@Override
protected void configureCodec(MediaCodecInfo codecInfo, MediaCodec codec, Format format,
    MediaCrypto crypto) throws DecoderQueryException {
  codecMaxValues = getCodecMaxValues(codecInfo, format, streamFormats);
  MediaFormat mediaFormat = getMediaFormat(format, codecMaxValues, deviceNeedsAutoFrcWorkaround,
      tunnelingAudioSessionId);
  codec.configure(mediaFormat, surface, crypto, 0);
  if (Util.SDK_INT >= 23 && tunneling) {
    tunnelingOnFrameRenderedListener = new OnFrameRenderedListenerV23(codec);
  }
}
项目：mobile-app-dev-book    文件：MediaViewActivity.java    
private void initExoPlayer() {
    DefaultBandwidthMeter bwMeter = new DefaultBandwidthMeter();
    AdaptiveTrackSelection.Factory trackFactory = new AdaptiveTrackSelection.Factory(bwMeter);
    DefaultTrackSelector trackSelector = new DefaultTrackSelector(trackFactory);
    player = ExoPlayerFactory.newSimpleInstance(this, trackSelector);
    videoView.setPlayer(player);

    DataSource.Factory dsFactory = new DefaultDataSourceFactory(getBaseContext(),
            Util.getUserAgent(this, "Traxy"), bwMeter);
    ExtractorsFactory exFactory = new DefaultExtractorsFactory();
    Uri mediaUri = Uri.parse(entry.getUrl());
    MediaSource videoSource = new ExtractorMediaSource(mediaUri,
            dsFactory, exFactory, null, null);
    player.prepare(videoSource);
}
项目：exoplayer-intro    文件：PlayerActivity.java    
@Override
public void onStop() {
  super.onStop();
  if (Util.SDK_INT > 23) {
    releasePlayer();
  }
}
项目：ExoPlayer-Offline    文件：PlayerActivity.java    
@Override
public void onStart() {
    super.onStart();
    if (Util.SDK_INT > 23) {
        initializePlayer();
    }
}
项目：ExoPlayer-Offline    文件：PlayerActivity.java    
@Override
public void onResume() {
    super.onResume();
    if ((Util.SDK_INT <= 23 || player == null)) {
        initializePlayer();
    }
}
项目：Exoplayer2Radio    文件：CryptoInfo.java    
public void setPattern(int patternBlocksToEncrypt, int patternBlocksToSkip) {
  this.patternBlocksToEncrypt = patternBlocksToEncrypt;
  this.patternBlocksToSkip = patternBlocksToSkip;
  if (Util.SDK_INT >= 24) {
    patternHolder.set(patternBlocksToEncrypt, patternBlocksToSkip);
  }
}
项目：Exoplayer2Radio    文件：AudioTrack.java    
/**
 * Returns the underlying audio track {@code positionUs} with any applicable speedup applied.
 */
private long applySpeedup(long positionUs) {
  while (!playbackParametersCheckpoints.isEmpty()
      && positionUs >= playbackParametersCheckpoints.getFirst().positionUs) {
    // We are playing (or about to play) media with the new playback parameters, so update them.
    PlaybackParametersCheckpoint checkpoint = playbackParametersCheckpoints.remove();
    playbackParameters = checkpoint.playbackParameters;
    playbackParametersPositionUs = checkpoint.positionUs;
    playbackParametersOffsetUs = checkpoint.mediaTimeUs - startMediaTimeUs;
  }

  if (playbackParameters.speed == 1f) {
    return positionUs + playbackParametersOffsetUs - playbackParametersPositionUs;
  }

  if (playbackParametersCheckpoints.isEmpty()
      && sonicAudioProcessor.getOutputByteCount() >= SONIC_MIN_BYTES_FOR_SPEEDUP) {
    return playbackParametersOffsetUs
        + Util.scaleLargeTimestamp(positionUs - playbackParametersPositionUs,
        sonicAudioProcessor.getInputByteCount(), sonicAudioProcessor.getOutputByteCount());
  }

  // We are playing drained data at a previous playback speed, or don't have enough bytes to
  // calculate an accurate speedup, so fall back to multiplying by the speed.
  return playbackParametersOffsetUs
      + (long) ((double) playbackParameters.speed * (positionUs - playbackParametersPositionUs));
}