• There are 195 files with units, with 25,866 lines of code.
• 0 very complex files (McCabe index sum 251+; 0 lines of code)
• 2 complex files (McCabe index sum 126-250; 1,839 lines of code)
• 24 medium complex files (McCabe index sum 51-125; 10,192 lines of code)
• 15 slightly complex files (McCabe index sum 26-50; 3,774 lines of code)
• 154 simple files (McCabe index sum 1-25; 10,061 lines of code)
• 10 main files have no units (e.g. languages without unit analysis, or files without functions) and are not classified.

The McCabe index of a file grows with its size: per 100 lines tells a large but plain file from a dense one, and most complex unit whether the complexity sits in one unit or is spread over many.

File	# lines	# units	McCabe index (sum)	per 100 lines	most complex unit
HeaderPartition.java in src/main/java/com/netflix/imflibrary/st0377	1123	50	233	21	90
IMFCompositionPlaylist.java in src/main/java/com/netflix/imflibrary/st2067_2	716	54	127	18	10
DOMNodeObjectModel.java in src/main/java/com/netflix/imflibrary/utils	580	37	125	22	14
IMFApp5ConstraintsValidator.java in src/main/java/com/netflix/imflibrary/validation	517	6	114	22	42
J2KHeaderParameters.java in src/main/java/com/netflix/imflibrary	299	13	104	35	38
IMFConstraints.java in src/main/java/com/netflix/imflibrary	556	12	95	17	55
JPEG2000.java in src/main/java/com/netflix/imflibrary	143	5	92	64	35
IMFTrackFileReader.java in src/main/java/com/netflix/imflibrary/app	579	28	91	16	16
IMPBuilder.java in src/main/java/com/netflix/imflibrary/writerTools	757	22	91	12	19
StructuralMetadata.java in src/main/java/com/netflix/imflibrary/st0377/header	982	9	85	9	55
MXFPropertyPopulator.java in src/main/java/com/netflix/imflibrary	399	18	83	21	44
AssetMap.java in src/main/java/com/netflix/imflibrary/st0429_9	498	24	77	15	14
IMFApp2E5EDConstraintsValidator.java in src/main/java/com/netflix/imflibrary/validation	395	3	75	19	55
IMPAssembler.java in src/main/java/com/netflix/imflibrary/writerTools	424	44	71	17	27
IMFApp2E2021ConstraintsValidator.java in src/main/java/com/netflix/imflibrary/validation	400	3	69	17	53
IMFMGASADMConstraintsChecker.java in src/main/java/com/netflix/imflibrary/st2067_203	262	2	68	26	41
Composition.java in src/main/java/com/netflix/imflibrary/st2067_2	349	24	67	19	14
OutputProfileList.java in src/main/java/com/netflix/imflibrary/st2067_100	381	16	66	17	18
MGASADMTrackFileConstraints.java in src/main/java/com/netflix/imflibrary/st2067_203	297	3	66	22	59
IABTrackFileConstraints.java in src/main/java/com/netflix/imflibrary/st2067_201	292	7	65	22	50
PartitionPack.java in src/main/java/com/netflix/imflibrary/st0377	331	37	64	19	11
IMPValidator.java in src/main/java/com/netflix/imflibrary/RESTfulInterfaces	354	9	63	18	20
IMFCPLValidator.java in src/main/java/com/netflix/imflibrary/validation	392	9	61	16	25
MXFOperationalPattern1A.java in src/main/java/com/netflix/imflibrary	251	6	56	22	45
IMPFixer.java in src/main/java/com/netflix/imflibrary/app	327	6	55	17	23
PackingList.java in src/main/java/com/netflix/imflibrary/st0429_8	427	23	54	13	14
OutputProfileListModel_st2067_100_2014.java in src/main/java/com/netflix/imflibrary/st2067_100	212	9	46	22	8
IMFCompositionPlaylistUtils.java in src/main/java/com/netflix/imflibrary/utils	187	8	45	24	19
IMFApp2EConstraintsValidator.java in src/main/java/com/netflix/imflibrary/validation	222	7	41	18	22
IMFTrackFileCPLBuilder.java in src/main/java/com/netflix/imflibrary/app	356	18	37	10	11
CompositionPlaylistBuilder_2016.java in src/main/java/com/netflix/imflibrary/writerTools	485	10	37	8	14
GenericSoundEssenceDescriptor.java in src/main/java/com/netflix/imflibrary/st0377/header	181	18	35	19	8
IMPAnalyzer.java in src/main/java/com/netflix/imflibrary/app	398	6	33	8	10
IMFIABConstraintsChecker.java in src/main/java/com/netflix/imflibrary/st2067_201	131	1	33	25	33
Utilities.java in src/main/java/com/netflix/imflibrary/utils	104	10	32	31	16
KLVPacket.java in src/main/java/com/netflix/imflibrary	166	18	30	18	7
PackingListBuilder.java in src/main/java/com/netflix/imflibrary/writerTools	350	18	29	8	6
IMFCoreConstraintsValidator.java in src/main/java/com/netflix/imflibrary/validation	179	4	29	16	24
CompositionPlaylistBuilder_2013.java in src/main/java/com/netflix/imflibrary/writerTools	443	10	28	6	6
MXFEssenceReader.java in src/main/java/com/netflix/imflibrary/app	199	13	27	14	5
CompoundDataTypes.java in src/main/java/com/netflix/imflibrary/st0377	161	17	26	16	6
CompositionImageEssenceDescriptorModel.java in src/main/java/com/netflix/imflibrary/st2067_2	501	9	24	5	15
UL.java in src/main/java/com/netflix/imflibrary/st0377/header	92	13	24	26	4
IndexTableSegment.java in src/main/java/com/netflix/imflibrary/st0377	212	7	23	11	10
Sequence.java in src/main/java/com/netflix/imflibrary/st0377/header	142	13	22	15	6
MCALabelSubDescriptor.java in src/main/java/com/netflix/imflibrary/st0377/header	110	13	22	20	10
AssetMapBuilder.java in src/main/java/com/netflix/imflibrary/writerTools	206	13	21	10	4
ISXDTrackFileConstraints.java in src/main/java/com/netflix/imflibrary/st2067_202	107	3	21	20	13
IMFISXDPluginConstraintsValidator.java in src/main/java/com/netflix/imflibrary/validation	151	4	21	14	11
MXFUtils.java in src/main/java/com/netflix/imflibrary/utils	141	6	20	14	7

• File complexity is the sum of the McCabe indexes (conditional complexity) of the units (methods, functions...) in a file.
• Files are classified in five categories based on that sum: 1-25 (simple files), 26-50 (slightly complex files), 51-125 (medium complex files), 126-250 (complex files), 251+ (very complex files). The default bands are five times the unit complexity bands, as a file is a group of units.
• Only main code files with units are classified. Files without units (languages without unit analysis, or files without functions) have no complexity to measure and are left out rather than counted as simple.
• A very complex file holds many decisions, which often means it has too many responsibilities: a candidate to split, and a place where changes need more testing.