コード例 #1
0
ファイル: IMPValidator.java プロジェクト: Netflix/photon
  /**
   * A stateless method to retrieve all the VirtualTracks that are a part of a Composition
   *
   * @param cpl - a payload corresponding to the Composition Playlist
   * @return list of VirtualTracks
   * @throws IOException - any I/O related error is exposed through an IOException
   */
  public static List<? extends VirtualTrack> getVirtualTracks(PayloadRecord cpl)
      throws IOException {
    IMFErrorLogger imfErrorLogger = new IMFErrorLoggerImpl();
    List<ErrorLogger.ErrorObject> errorList = validateCPL(cpl);

    imfErrorLogger.addAllErrors(errorList);

    if (imfErrorLogger.hasFatalErrors()) {
      throw new IMFException("Virtual track failed validation", imfErrorLogger);
    }

    Composition composition = new Composition(new ByteArrayByteRangeProvider(cpl.getPayload()));
    return composition.getVirtualTracks();
  }
コード例 #2
0
ファイル: IMPValidator.java プロジェクト: Netflix/photon
  /**
   * A stateless method that can be used to determine if a Composition is conformant. Conformance
   * checks perform deeper inspection of the Composition and the EssenceDescriptors corresponding to
   * all the Virtual Tracks that are a part of the Composition
   *
   * @param cplPayloadRecord a payload record corresponding to the Composition payload
   * @param essencesHeaderPartitionPayloads list of payload records containing the raw bytes of the
   *     HeaderPartitions of the IMF Track files that are a part of the Virtual Track/s in the
   *     Composition
   * @return list of error messages encountered while performing conformance validation of the
   *     Composition document
   * @throws IOException - any I/O related error is exposed through an IOException
   */
  public static List<ErrorLogger.ErrorObject> areAllVirtualTracksInCPLConformed(
      PayloadRecord cplPayloadRecord, List<PayloadRecord> essencesHeaderPartitionPayloads)
      throws IOException {

    IMFErrorLogger imfErrorLogger = new IMFErrorLoggerImpl();
    Composition composition =
        new Composition(new ByteArrayByteRangeProvider(cplPayloadRecord.getPayload()));

    imfErrorLogger.addAllErrors(composition.getErrors());

    List<VirtualTrack> virtualTracks = new ArrayList<>(composition.getVirtualTracks());
    imfErrorLogger.addAllErrors(
        checkVirtualTrackAndEssencesHeaderPartitionPayloadRecords(
            virtualTracks, essencesHeaderPartitionPayloads));
    if (imfErrorLogger.hasFatalErrors()) {
      return imfErrorLogger.getErrors();
    }
    imfErrorLogger.addAllErrors(
        conformVirtualTracksInCPL(cplPayloadRecord, essencesHeaderPartitionPayloads, true));

    return imfErrorLogger.getErrors();
  }