workAroundBrokenPlatforms_(stream, segment, reference, contentType) {
    const ContentType = shaka.util.ManifestParserUtils.ContentType;

    const isMp4 = shaka.util.MimeUtils.getContainerType(
        this.sourceBufferTypes_.get(contentType)) == 'mp4';
    if (!isMp4) {
      return segment;
    }

    const isInitSegment = reference === null;
    const encryptionExpected = this.expectedEncryption_.get(contentType);
    const keySystem = this.playerInterface_.getKeySystem();
    let isEncrypted = false;
    if (reference && reference.initSegmentReference) {
      isEncrypted = reference.initSegmentReference.encrypted;
    }
    const uri = reference ? reference.getUris()[0] : null;
    const device = shaka.device.DeviceFactory.getDevice();

    if (this.config_.correctEc3Enca &&
      isInitSegment &&
      contentType === ContentType.AUDIO) {
      segment = shaka.media.ContentWorkarounds.correctEnca(segment);
    }

    // If:
    //   1. the configuration tells to insert fake encryption,
    //   2. and this is an init segment or media segment,
    //   3. and encryption is expected,
    //   4. and the platform requires encryption in all init or media segments
    //      of current content type,
    // then insert fake encryption metadata for init segments that lack it.
    // The MP4 requirement is because we can currently only do this
    // transformation on MP4 containers.
    // See: https://github.com/shaka-project/shaka-player/issues/2759
    if (this.config_.insertFakeEncryptionInInit && encryptionExpected &&
        device.requiresEncryptionInfoInAllInitSegments(keySystem,
            contentType)) {
      if (isInitSegment) {
        shaka.log.debug('Forcing fake encryption information in init segment.');
        segment =
            shaka.media.ContentWorkarounds.fakeEncryption(stream, segment, uri);
      } else if (!isEncrypted && device.requiresTfhdFix(contentType)) {
        shaka.log.debug(
            'Forcing fake encryption information in media segment.');
        segment = shaka.media.ContentWorkarounds.fakeMediaEncryption(segment);
      }
    }

    if (isInitSegment && device.requiresEC3InitSegments()) {
      shaka.log.debug('Forcing fake EC-3 information in init segment.');
      segment = shaka.media.ContentWorkarounds.fakeEC3(segment);
    }

    return segment;
  }
Apply platform-specific transformations to this segment to work around
issues in the platform.

@param {shaka.extern.Stream} stream
@param {!BufferSource} segment
@param {?shaka.media.SegmentReference} reference
@param {shaka.util.ManifestParserUtils.ContentType} contentType
@return {!BufferSource}
@private