com.google.android.exoplayer2.util.Util类的使用及代码示例

x33g5p2x  于2022-02-01 转载在 其他  
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本文整理了Java中com.google.android.exoplayer2.util.Util类的一些代码示例，展示了Util类的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Util类的具体详情如下：
包路径：com.google.android.exoplayer2.util.Util
类名称：Util

Util介绍

[英]Miscellaneous utility methods.
[中]各种实用方法。

代码示例

代码示例来源：origin: google/ExoPlayer

  1. public PlayerManager(Context context) {
  2.  String adTag = context.getString(R.string.ad_tag_url);
  3.  adsLoader = new ImaAdsLoader(context, Uri.parse(adTag));
  4.  dataSourceFactory =
  5.    new DefaultDataSourceFactory(
  6.      context, Util.getUserAgent(context, context.getString(R.string.application_name)));
  7. }

代码示例来源：origin: google/ExoPlayer

  1. /**
  2.  * Makes a best guess to infer the type from a {@link Uri}.
  3.  *
  4.  * @param uri The {@link Uri}.
  5.  * @param overrideExtension If not null, used to infer the type.
  6.  * @return The content type.
  7.  */
  8. @C.ContentType
  9. public static int inferContentType(Uri uri, String overrideExtension) {
  10.  return TextUtils.isEmpty(overrideExtension)
  11.    ? inferContentType(uri)
  12.    : inferContentType("." + overrideExtension);
  13. }

代码示例来源：origin: google/ExoPlayer

  1. @Override
  2. public boolean equals(@Nullable Object obj) {
  3.  if (this == obj) {
  4.   return true;
  5.  }
  6.  if (obj == null || getClass() != obj.getClass()) {
  7.   return false;
  8.  }
  9.  CommentFrame other = (CommentFrame) obj;
  10.  return Util.areEqual(description, other.description) && Util.areEqual(language, other.language)
  11.    && Util.areEqual(text, other.text);
  12. }

代码示例来源：origin: google/ExoPlayer

  1. /**
  2.  * Adjusts ClearKey request data obtained from the Android ClearKey CDM to be spec compliant.
  3.  *
  4.  * @param request The request data.
  5.  * @return The adjusted request data.
  6.  */
  7. public static byte[] adjustRequestData(byte[] request) {
  8.  if (Util.SDK_INT >= 27) {
  9.   return request;
  10.  }
  11.  // Prior to O-MR1 the ClearKey CDM encoded the values in the "kids" array using Base64 encoding
  12.  // rather than Base64Url encoding. See [Internal: b/64388098]. We know the exact request format
  13.  // from the platform's InitDataParser.cpp. Since there aren't any "+" or "/" symbols elsewhere
  14.  // in the request, it's safe to fix the encoding by replacement through the whole request.
  15.  String requestString = Util.fromUtf8Bytes(request);
  16.  return Util.getUtf8Bytes(base64ToBase64Url(requestString));
  17. }

代码示例来源：origin: google/ExoPlayer

  1. private static void setSampleDuration(byte[] subripSampleData, long durationUs,
  2.   String timecodeFormat, int endTimecodeOffset, long lastTimecodeValueScalingFactor,
  3.   byte[] emptyTimecode) {
  4.  byte[] timeCodeData;
  5.  if (durationUs == C.TIME_UNSET) {
  6.   timeCodeData = emptyTimecode;
  7.  } else {
  8.   int hours = (int) (durationUs / (3600 * C.MICROS_PER_SECOND));
  9.   durationUs -= (hours * 3600 * C.MICROS_PER_SECOND);
  10.   int minutes = (int) (durationUs / (60 * C.MICROS_PER_SECOND));
  11.   durationUs -= (minutes * 60 * C.MICROS_PER_SECOND);
  12.   int seconds = (int) (durationUs / C.MICROS_PER_SECOND);
  13.   durationUs -= (seconds * C.MICROS_PER_SECOND);
  14.   int lastValue = (int) (durationUs / lastTimecodeValueScalingFactor);
  15.   timeCodeData = Util.getUtf8Bytes(String.format(Locale.US, timecodeFormat, hours, minutes,
  16.     seconds, lastValue));
  17.  }
  18.  System.arraycopy(timeCodeData, 0, subripSampleData, endTimecodeOffset, emptyTimecode.length);
  19. }

代码示例来源：origin: google/ExoPlayer

  1. public WebvttCssStyle setFontFamily(String fontFamily) {
  2.  this.fontFamily = Util.toLowerInvariant(fontFamily);
  3.  return this;
  4. }

代码示例来源：origin: google/ExoPlayer

  1. /**
  2.  * Returns the index of the chunk that contains the specified time.
  3.  *
  4.  * @param timeUs The time in microseconds.
  5.  * @return The index of the corresponding chunk.
  6.  */
  7. public int getChunkIndex(long timeUs) {
  8.  return Util.binarySearchFloor(chunkStartTimesUs, timeUs, true, true);
  9. }

代码示例来源：origin: google/ExoPlayer

  1. return new Point(3840, 2160);
  2.  } else if (("NVIDIA".equals(Util.MANUFACTURER) && Util.MODEL.contains("SHIELD"))
  3.    || ("philips".equals(Util.toLowerInvariant(Util.MANUFACTURER))
  4.      && (Util.MODEL.startsWith("QM1")
  5.        || Util.MODEL.equals("QV151E")
  6.     String[] sysDisplaySizeParts = split(sysDisplaySize.trim(), "x");
  7.     if (sysDisplaySizeParts.length == 2) {
  8.      int width = Integer.parseInt(sysDisplaySizeParts[0]);
  9.  getDisplaySizeV23(display, displaySize);
  10. } else if (Util.SDK_INT >= 17) {
  11.  getDisplaySizeV17(display, displaySize);
  12. } else if (Util.SDK_INT >= 16) {
  13.  getDisplaySizeV16(display, displaySize);
  14. } else {
  15.  getDisplaySizeV9(display, displaySize);

代码示例来源：origin: google/ExoPlayer

  1. return null;
  2. codec = Util.toLowerInvariant(codec.trim());
  3. if (codec.startsWith("avc1") || codec.startsWith("avc3")) {
  4.  return MimeTypes.VIDEO_H264;
  5.   if (objectTypeString.length() >= 2) {
  6.    try {
  7.     String objectTypeHexString = Util.toUpperInvariant(objectTypeString.substring(0, 2));
  8.     int objectTypeInt = Integer.parseInt(objectTypeHexString, 16);
  9.     mimeType = getMimeTypeFromMp4ObjectType(objectTypeInt);

代码示例来源：origin: google/ExoPlayer

  1. private static void assertParseStringToLong(
  2.    long expected, ParsingLoadable.Parser<Long> parser, String data) throws IOException {
  3.   long actual = parser.parse(null, new ByteArrayInputStream(Util.getUtf8Bytes(data)));
  4.   assertThat(actual).isEqualTo(expected);
  5.  }
  6. }

代码示例来源：origin: google/ExoPlayer

  1. /**
  2.  * Parses the number of channels from the value attribute of an AudioElementConfiguration with
  3.  * schemeIdUri "tag:dolby.com,2014:dash:audio_channel_configuration:2011", as defined by table E.5
  4.  * in ETSI TS 102 366.
  5.  *
  6.  * @param xpp The parser from which to read.
  7.  * @return The parsed number of channels, or {@link Format#NO_VALUE} if the channel count could
  8.  *     not be parsed.
  9.  */
  10. protected static int parseDolbyChannelConfiguration(XmlPullParser xpp) {
  11.  String value = Util.toLowerInvariant(xpp.getAttributeValue(null, "value"));
  12.  if (value == null) {
  13.   return Format.NO_VALUE;
  14.  }
  15.  switch (value) {
  16.   case "4000":
  17.    return 1;
  18.   case "a000":
  19.    return 2;
  20.   case "f801":
  21.    return 6;
  22.   case "fa01":
  23.    return 8;
  24.   default:
  25.    return Format.NO_VALUE;
  26.  }
  27. }

代码示例来源：origin: google/ExoPlayer

  1. /**
  2.  * Obtains the index of the chunk corresponding to a given time.
  3.  *
  4.  * @param timeUs The time, in microseconds.
  5.  * @return The index of the corresponding chunk.
  6.  */
  7. public int getChunkIndex(long timeUs) {
  8.  return Util.binarySearchFloor(timesUs, timeUs, true, true);
  9. }

代码示例来源：origin: CarGuo/GSYVideoPlayer

  1. private DataSource.Factory getHttpDataSourceFactory(Context context, boolean preview) {
  2.   DefaultHttpDataSourceFactory dataSourceFactory = new DefaultHttpDataSourceFactory(Util.getUserAgent(context,
  3.       TAG), preview ? null : new DefaultBandwidthMeter());
  4.   if (mMapHeadData != null && mMapHeadData.size() > 0) {
  5.     for (Map.Entry<String, String> header : mMapHeadData.entrySet()) {
  6.       dataSourceFactory.getDefaultRequestProperties().set(header.getKey(), header.getValue());
  7.     }
  8.   }
  9.   return dataSourceFactory;
  10. }

代码示例来源：origin: google/ExoPlayer

  1. /**
  2.  * Makes a best guess to infer the type from a {@link Uri}.
  3.  *
  4.  * @param uri The {@link Uri}.
  5.  * @return The content type.
  6.  */
  7. @C.ContentType
  8. public static int inferContentType(Uri uri) {
  9.  String path = uri.getPath();
  10.  return path == null ? C.TYPE_OTHER : inferContentType(path);
  11. }

代码示例来源：origin: google/ExoPlayer

  1. @Override
  2. public boolean equals(@Nullable Object obj) {
  3.  if (!(obj instanceof SchemeData)) {
  4.   return false;
  5.  }
  6.  if (obj == this) {
  7.   return true;
  8.  }
  9.  SchemeData other = (SchemeData) obj;
  10.  return Util.areEqual(licenseServerUrl, other.licenseServerUrl)
  11.    && Util.areEqual(mimeType, other.mimeType)
  12.    && Util.areEqual(uuid, other.uuid)
  13.    && Arrays.equals(data, other.data);
  14. }

代码示例来源：origin: google/ExoPlayer

  1. @Config(sdk = 26)
  2. @Test
  3. public void testAdjustRequestDataV26() {
  4.  // We expect "+" and "/" to be replaced with "-" and "_" respectively, for "kids".
  5.  byte[] expected =
  6.    Util.getUtf8Bytes(
  7.      "{"
  8.        + "\"kids\":["
  9.        + "\"abc-def_\","
  10.        + "\"ab-cde_f\""
  11.        + "],"
  12.        + "\"type\":\"temporary\""
  13.        + "}");
  14.  assertThat(ClearKeyUtil.adjustRequestData(KEY_REQUEST)).isEqualTo(expected);
  15. }

代码示例来源：origin: google/ExoPlayer

  1. /**
  2.  * Derives a DRM {@link UUID} from {@code drmScheme}.
  3.  *
  4.  * @param drmScheme A UUID string, or {@code "widevine"}, {@code "playready"} or {@code
  5.  *     "clearkey"}.
  6.  * @return The derived {@link UUID}, or {@code null} if one could not be derived.
  7.  */
  8. public static @Nullable UUID getDrmUuid(String drmScheme) {
  9.  switch (Util.toLowerInvariant(drmScheme)) {
  10.   case "widevine":
  11.    return C.WIDEVINE_UUID;
  12.   case "playready":
  13.    return C.PLAYREADY_UUID;
  14.   case "clearkey":
  15.    return C.CLEARKEY_UUID;
  16.   default:
  17.    try {
  18.     return UUID.fromString(drmScheme);
  19.    } catch (RuntimeException e) {
  20.     return null;
  21.    }
  22.  }
  23. }

代码示例来源：origin: google/ExoPlayer

  1. @Override
  2. protected int getChildIndexByPeriodIndex(int periodIndex) {
  3.  return Util.binarySearchFloor(firstPeriodInChildIndices, periodIndex + 1, false, false);
  4. }

代码示例来源：origin: lipangit/JiaoZiVideoPlayer

  1. Util.getUserAgent(context, context.getResources().getString(R.string.app_name)));

代码示例来源：origin: CarGuo/GSYVideoPlayer

  1. @C.ContentType
  2. public static int inferContentType(Uri uri, @Nullable String overrideExtension) {
  3.   return Util.inferContentType(uri, overrideExtension);
  4. }

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