question: public static void checkOperationalPattern1ACompliance ( List < PartitionPack > partitionPacks ) { IMFErrorLogger imfErrorLogger = new IMFErrorLoggerImpl ( ) ; for ( PartitionPack partitionPack : partitionPacks ) { byte [ ] bytes = partitionPack . getOperationalPattern ( ) ; for ( int i = 0 ; i < bytes . length ; i ++ ) { if ( ( MXFOperationalPattern1A . OPERATIONAL_PATTERN1A_KEY_MASK [ i ] != 0 ) && ( MXFOperationalPattern1A . OPERATIONAL_PATTERN1A_KEY [ i ] != bytes [ i ] ) ) { imfErrorLogger . addError ( IMFErrorLogger . IMFErrors . ErrorCodes . IMF_ESSENCE_COMPONENT_ERROR , IMFErrorLogger . IMFErrors . ErrorLevels . FATAL , MXFOperationalPattern1A . OP1A_EXCEPTION_PREFIX + String . format ( "Operational Pattern field in preface = 0x%x at position (zero-indexed) = %d, is different from expected value = 0x%x" , bytes [ i ] , i , MXFOperationalPattern1A . OPERATIONAL_PATTERN1A_KEY [ i ] ) ) ; } } if ( partitionPack . getNumberOfEssenceContainerULs ( ) < 1 ) { imfErrorLogger . addError ( IMFErrorLogger . IMFErrors . ErrorCodes . IMF_ESSENCE_COMPONENT_ERROR , IMFErrorLogger . IMFErrors . ErrorLevels . FATAL , MXFOperationalPattern1A . OP1A_EXCEPTION_PREFIX + String . format ( "Number of EssenceContainer ULs in partition pack = %d, at least 1 is expected" , partitionPack . getNumberOfEssenceContainerULs ( ) ) ) ; } } if ( imfErrorLogger . hasFatalErrors ( ) ) { throw new MXFException ( String . format ( "Found fatal errors in the IMFTrackFile that violate IMF OP1A compliance" ) , imfErrorLogger ) ; } }
target:  Checks the compliance of partition packs found in an MXF file with st378:2004. A runtime exception is thrown in case of non-compliance