mozilla / mozjpeg
File Change Frequency

File change frequency (churn) shows the distribution of file updates (days with at least one commit).

Overview
File Change Frequency Overall
  • There are 391 files with 106,765 lines of code.
    • 6 files changed more than 100 times (5,941 lines of code)
    • 28 files changed 51-100 times (19,757 lines of code)
    • 74 files changed 21-50 times (18,500 lines of code)
    • 195 files changed 6-20 times (46,955 lines of code)
    • 88 files changed 1-5 times (15,612 lines of code)
5% | 18% | 17% | 43% | 14%
Legend:
101+
51-100
21-50
6-20
1-5

explore: grouped by folders | grouped by update frequency | data
Contributors Count Frequency Overall
  • There are 391 files with 106,765 lines of code.
    • 0 files changed by more than 25 contributors (0 lines of code)
    • 15 files changed by 11-25 contributors (9,103 lines of code)
    • 68 files changed by 6-10 contributors (25,960 lines of code)
    • 308 files changed by 2-5 contributors (71,702 lines of code)
    • 0 files changed by 1 contributor (0 lines of code)
0% | 8% | 24% | 67% | 0%
Legend:
26+
11-25
6-10
2-5
1

explore: grouped by folders | grouped by contributors count | data
File Change Frequency per File Extension
c, asm, js, h, html, in, txt, svg, java, md, cc, css, sh, cmake, inc, s, gitattributes, podspec, yaml, gitignore
File Change Frequency per Extension
The number of recorded file updates
101+
51-100
21-50
6-20
1-5
c8% | 25% | 26% | 19% | 20%
h17% | 30% | 15% | 8% | 28%
java0% | 82% | 15% | 1% | 0%
in0% | 0% | 52% | 22% | 25%
cmake0% | 0% | 20% | 66% | 12%
cc0% | 0% | 14% | 39% | 45%
asm0% | 0% | 0% | 100% | 0%
css0% | 0% | 0% | 99% | <1%
js0% | 0% | 0% | 58% | 41%
inc0% | 0% | 0% | 80% | 19%
File Change Frequency per Logical Decomposition
primary
primary (file change frequency)
The number of recorded file updates
101+
51-100
21-50
6-20
1-5
ROOT12% | 33% | 34% | 8% | 10%
java0% | 61% | 11% | 17% | 10%
simd0% | 2% | 1% | 77% | 18%
release0% | 0% | 61% | 27% | 10%
cmakescripts0% | 0% | 19% | 64% | 15%
fuzz0% | 0% | 14% | 39% | 45%
doc0% | 0% | 0% | 90% | 9%
md50% | 0% | 0% | 100% | 0%
win0% | 0% | 0% | 0% | 100%
Most Frequently Changed Files (Top 50)

See data for all files...

File# lines# unitscreatedlast modified# changes
(days)		# contributorsfirst
contributor		latest
contributor
2311 72 2011-05-26 2024-12-23 171 9 dcommander@users.sourceforg... kornel@geekhood.net
cjpeg.c
in root
 754 2 1994-09-24 2024-12-23 123 15 tgl@netcom.com kornel@geekhood.net
tjbench.c
in root
 1165 7 2011-05-25 2024-12-23 107 6 dcommander@users.sourceforg... kornel@geekhood.net
375 - 2009-04-03 2024-12-23 103 5 dcommander@users.sourceforg... kornel@geekhood.net
jchuff.c
in root
 726 - 1991-12-13 2024-12-23 103 16 tgl@netcom.com kornel@geekhood.net
jpeglib.h
in root
 610 - 1994-09-24 2024-12-23 101 13 tgl@netcom.com kornel@geekhood.net
jsimd.h
in simd
 1078 - 2009-03-09 2023-02-03 90 9 ossman@cendio.se kornel@geekhood.net
jcmaster.c
in root
 860 - 1992-03-17 2024-12-23 86 16 tgl@netcom.com kornel@geekhood.net
djpeg.c
in root
 680 - 1994-09-24 2024-12-23 83 9 tgl@netcom.com kornel@geekhood.net
jdhuff.c
in root
 479 - 1991-12-13 2024-12-23 81 10 tgl@netcom.com kornel@geekhood.net
1147 1 2011-02-04 2024-12-23 80 4 dcommander@users.sourceforg... kornel@geekhood.net
jcparam.c
in root
 698 - 1994-09-24 2024-12-23 79 11 tgl@netcom.com kornel@geekhood.net
jcdctmgr.c
in root
 1342 1 1994-09-24 2024-12-23 78 12 tgl@netcom.com kornel@geekhood.net
jpegint.h
in root
 464 - 1994-09-24 2024-12-23 77 14 tgl@netcom.com kornel@geekhood.net
jdcolor.c
in root
 697 1 1991-12-13 2024-12-23 77 9 tgl@netcom.com kornel@geekhood.net
jpegtran.c
in root
 617 - 1995-08-02 2024-12-23 71 12 tgl@netcom.com kornel@geekhood.net
jdmaster.c
in root
 615 - 1992-03-17 2024-12-23 67 10 tgl@netcom.com kornel@geekhood.net
1051 20 2011-05-25 2024-12-23 67 5 dcommander@users.sourceforg... kornel@geekhood.net
jcphuff.c
in root
 738 - 1995-08-02 2024-12-23 66 15 tgl@netcom.com kornel@geekhood.net
1087 14 2012-09-24 2024-12-23 66 4 dcommander@users.sourceforg... kornel@geekhood.net
jmorecfg.h
in root
 132 - 1994-09-24 2024-12-23 65 14 tgl@netcom.com kornel@geekhood.net
rdppm.c
in root
 683 - 1994-09-24 2024-12-23 64 8 tgl@netcom.com kornel@geekhood.net
jccolor.c
in root
 554 - 1991-12-13 2024-12-23 62 9 tgl@netcom.com kornel@geekhood.net
jdapistd.c
in root
 457 - 1995-08-02 2024-12-23 61 8 tgl@netcom.com kornel@geekhood.net
TJDecompressor.java
in java/org/libjpegturbo/turbojpeg
 539 39 2011-02-08 2024-12-23 60 4 dcommander@users.sourceforg... kornel@geekhood.net
TJCompressor.java
in java/org/libjpegturbo/turbojpeg
 375 24 2011-02-08 2024-12-23 57 4 dcommander@users.sourceforg... kornel@geekhood.net
jdmerge.c
in root
 420 1 1994-09-24 2024-12-23 57 9 tgl@netcom.com kornel@geekhood.net
1005 26 2011-02-23 2024-12-23 57 4 dcommander@users.sourceforg... kornel@geekhood.net
jmemmgr.c
in root
 782 - 1992-03-17 2024-12-23 56 11 tgl@netcom.com kornel@geekhood.net
TJ.java
in java/org/libjpegturbo/turbojpeg
 146 11 2011-02-08 2024-12-23 54 4 dcommander@users.sourceforg... kornel@geekhood.net
jdcoefct.c
in root
 654 - 1994-09-24 2024-12-23 53 9 tgl@netcom.com kornel@geekhood.net
cdjpeg.h
in root
 107 - 1994-09-24 2024-12-23 52 8 tgl@netcom.com kornel@geekhood.net
rdbmp.c
in root
 507 - 1994-09-24 2024-12-23 51 9 tgl@netcom.com kornel@geekhood.net
transupp.c
in root
 1843 - 1998-03-27 2024-12-23 51 9 tgl@netcom.com kornel@geekhood.net
jdsample.c
in root
 339 - 1992-03-17 2024-12-23 50 11 tgl@netcom.com kornel@geekhood.net
rdswitch.c
in root
 477 - 1995-08-02 2024-12-23 50 9 tgl@netcom.com kornel@geekhood.net
jdarith.c
in root
 498 - 1992-03-17 2023-01-26 49 8 tgl@netcom.com information@libjpeg-turbo.org
in
makemacpkg.in
in release
 180 - 2010-10-21 2024-12-23 48 5 dcommander@users.sourceforg... kornel@geekhood.net
jctrans.c
in root
 240 - 1995-08-02 2024-12-23 46 12 tgl@netcom.com kornel@geekhood.net
jerror.h
in root
 286 - 1994-09-24 2024-12-23 46 10 tgl@netcom.com kornel@geekhood.net
jcmarker.c
in root
 528 - 1994-09-24 2024-12-23 46 12 tgl@netcom.com kornel@geekhood.net
jddctmgr.c
in root
 273 - 1994-09-24 2024-12-23 44 12 tgl@netcom.com kornel@geekhood.net
jcsample.c
in root
 311 1 1991-12-13 2024-12-23 44 10 tgl@netcom.com kornel@geekhood.net
jdatadst.c
in root
 137 - 1994-09-24 2024-12-23 43 9 tgl@netcom.com kornel@geekhood.net
302 3 2011-02-08 2024-12-23 43 4 dcommander@users.sourceforg... kornel@geekhood.net
jdphuff.c
in root
 400 - 1995-08-02 2024-12-23 43 8 tgl@netcom.com kornel@geekhood.net
jccoefct.c
in root
 412 - 1994-09-24 2024-12-23 43 9 tgl@netcom.com kornel@geekhood.net
jdmarker.c
in root
 868 - 1994-09-24 2024-12-23 42 8 tgl@netcom.com kornel@geekhood.net
wrppm.c
in root
 232 - 1994-09-24 2024-12-23 41 6 tgl@netcom.com kornel@geekhood.net
wrbmp.c
in root
 369 1 1994-09-24 2024-12-23 41 7 tgl@netcom.com kornel@geekhood.net
Files With Most Contributors (Top 50)
Based on the number of unique email addresses found in commits.

See data for all files...

File# lines# unitscreatedlast modified# changes
(days)		# contributorsfirst
contributor		latest
contributor
jchuff.c
in root
 726 - 1991-12-13 2024-12-23 103 16 tgl@netcom.com kornel@geekhood.net
jcmaster.c
in root
 860 - 1992-03-17 2024-12-23 86 16 tgl@netcom.com kornel@geekhood.net
cjpeg.c
in root
 754 2 1994-09-24 2024-12-23 123 15 tgl@netcom.com kornel@geekhood.net
jcphuff.c
in root
 738 - 1995-08-02 2024-12-23 66 15 tgl@netcom.com kornel@geekhood.net
jpegint.h
in root
 464 - 1994-09-24 2024-12-23 77 14 tgl@netcom.com kornel@geekhood.net
jmorecfg.h
in root
 132 - 1994-09-24 2024-12-23 65 14 tgl@netcom.com kornel@geekhood.net
jpeglib.h
in root
 610 - 1994-09-24 2024-12-23 101 13 tgl@netcom.com kornel@geekhood.net
jcdctmgr.c
in root
 1342 1 1994-09-24 2024-12-23 78 12 tgl@netcom.com kornel@geekhood.net
jpegtran.c
in root
 617 - 1995-08-02 2024-12-23 71 12 tgl@netcom.com kornel@geekhood.net
jctrans.c
in root
 240 - 1995-08-02 2024-12-23 46 12 tgl@netcom.com kornel@geekhood.net
jcmarker.c
in root
 528 - 1994-09-24 2024-12-23 46 12 tgl@netcom.com kornel@geekhood.net
jddctmgr.c
in root
 273 - 1994-09-24 2024-12-23 44 12 tgl@netcom.com kornel@geekhood.net
jcparam.c
in root
 698 - 1994-09-24 2024-12-23 79 11 tgl@netcom.com kornel@geekhood.net
jmemmgr.c
in root
 782 - 1992-03-17 2024-12-23 56 11 tgl@netcom.com kornel@geekhood.net
jdsample.c
in root
 339 - 1992-03-17 2024-12-23 50 11 tgl@netcom.com kornel@geekhood.net
jdhuff.c
in root
 479 - 1991-12-13 2024-12-23 81 10 tgl@netcom.com kornel@geekhood.net
jdmaster.c
in root
 615 - 1992-03-17 2024-12-23 67 10 tgl@netcom.com kornel@geekhood.net
jerror.h
in root
 286 - 1994-09-24 2024-12-23 46 10 tgl@netcom.com kornel@geekhood.net
jcsample.c
in root
 311 1 1991-12-13 2024-12-23 44 10 tgl@netcom.com kornel@geekhood.net
wrjpgcom.c
in root
 384 - 1994-09-24 2022-08-15 39 10 tgl@netcom.com kornel@geekhood.net
jdatasrc.c
in root
 116 - 1994-09-24 2024-12-23 39 10 tgl@netcom.com kornel@geekhood.net
jcapimin.c
in root
 169 - 1995-08-02 2024-12-23 39 10 tgl@netcom.com kornel@geekhood.net
jdapimin.c
in root
 240 - 1995-08-02 2024-12-23 34 10 tgl@netcom.com kornel@geekhood.net
jcinit.c
in root
 98 - 1995-08-02 2024-12-23 34 10 tgl@netcom.com kornel@geekhood.net
jcapistd.c
in root
 91 - 1995-08-02 2024-12-23 28 10 tgl@netcom.com kornel@geekhood.net
2311 72 2011-05-26 2024-12-23 171 9 dcommander@users.sourceforg... kornel@geekhood.net
jsimd.h
in simd
 1078 - 2009-03-09 2023-02-03 90 9 ossman@cendio.se kornel@geekhood.net
djpeg.c
in root
 680 - 1994-09-24 2024-12-23 83 9 tgl@netcom.com kornel@geekhood.net
jdcolor.c
in root
 697 1 1991-12-13 2024-12-23 77 9 tgl@netcom.com kornel@geekhood.net
jccolor.c
in root
 554 - 1991-12-13 2024-12-23 62 9 tgl@netcom.com kornel@geekhood.net
jdmerge.c
in root
 420 1 1994-09-24 2024-12-23 57 9 tgl@netcom.com kornel@geekhood.net
jdcoefct.c
in root
 654 - 1994-09-24 2024-12-23 53 9 tgl@netcom.com kornel@geekhood.net
rdbmp.c
in root
 507 - 1994-09-24 2024-12-23 51 9 tgl@netcom.com kornel@geekhood.net
transupp.c
in root
 1843 - 1998-03-27 2024-12-23 51 9 tgl@netcom.com kornel@geekhood.net
rdswitch.c
in root
 477 - 1995-08-02 2024-12-23 50 9 tgl@netcom.com kornel@geekhood.net
jccoefct.c
in root
 412 - 1994-09-24 2024-12-23 43 9 tgl@netcom.com kornel@geekhood.net
jdatadst.c
in root
 137 - 1994-09-24 2024-12-23 43 9 tgl@netcom.com kornel@geekhood.net
example.c
in root
 238 - 1992-03-17 2025-01-04 37 9 tgl@netcom.com kornel@geekhood.net
jcarith.c
in root
 638 - 1992-03-17 2024-12-23 33 9 tgl@netcom.com kornel@geekhood.net
jdtrans.c
in root
 84 - 1995-08-02 2024-12-23 32 9 tgl@netcom.com kornel@geekhood.net
yuvjpeg.c
in root
 191 2 2014-03-05 2016-07-15 17 9 negge@dgql.org kornel@geekhood.net
rdppm.c
in root
 683 - 1994-09-24 2024-12-23 64 8 tgl@netcom.com kornel@geekhood.net
jdapistd.c
in root
 457 - 1995-08-02 2024-12-23 61 8 tgl@netcom.com kornel@geekhood.net
cdjpeg.h
in root
 107 - 1994-09-24 2024-12-23 52 8 tgl@netcom.com kornel@geekhood.net
jdarith.c
in root
 498 - 1992-03-17 2023-01-26 49 8 tgl@netcom.com information@libjpeg-turbo.org
jdphuff.c
in root
 400 - 1995-08-02 2024-12-23 43 8 tgl@netcom.com kornel@geekhood.net
jdmarker.c
in root
 868 - 1994-09-24 2024-12-23 42 8 tgl@netcom.com kornel@geekhood.net
jdmainct.c
in root
 234 - 1994-09-24 2024-12-23 39 8 tgl@netcom.com kornel@geekhood.net
in
 46 - 2008-04-14 2024-12-23 39 8 atkac@redhat.com kornel@geekhood.net
jdinput.c
in root
 236 - 1995-08-02 2024-12-23 37 8 tgl@netcom.com kornel@geekhood.net
Files With Least Contributors (Top 50)
Based on the number of unique email addresses found in commits.

See data for all files...

File# lines# unitscreatedlast modified# changes
(days)		# contributorsfirst
contributor		latest
contributor
4111 - 2024-01-12 2024-12-23 2 2 information@libjpeg-turbo.org kornel@geekhood.net
loongson-mmintrin.h
in simd/mips64
 992 - 2019-12-17 2021-02-26 2 2 information@libjpeg-turbo.org kornel@geekhood.net
jsimd.c
in simd/mips64
 700 - 2019-12-17 2023-02-03 9 2 information@libjpeg-turbo.org kornel@geekhood.net
jdmrgext-mmi.c
in simd/mips64
 495 2 2019-12-17 2021-02-26 2 2 information@libjpeg-turbo.org kornel@geekhood.net
jidctint-mmi.c
in simd/mips64
 475 1 2019-12-17 2021-02-26 3 2 information@libjpeg-turbo.org kornel@geekhood.net
407 3 2023-01-05 2024-12-23 7 2 information@libjpeg-turbo.org kornel@geekhood.net
jccolext-mmi.c
in simd/mips64
 349 1 2019-12-17 2021-02-26 2 2 information@libjpeg-turbo.org kornel@geekhood.net
jidctfst-mmi.c
in simd/mips64
 335 1 2019-12-17 2021-02-26 2 2 information@libjpeg-turbo.org kornel@geekhood.net
jfdctint-mmi.c
in simd/mips64
 318 1 2019-12-17 2021-02-26 3 2 information@libjpeg-turbo.org kornel@geekhood.net
jdcolext-mmi.c
in simd/mips64
 315 1 2019-12-17 2021-02-26 2 2 information@libjpeg-turbo.org kornel@geekhood.net
308 3 2017-11-17 2024-12-23 27 2 information@libjpeg-turbo.org kornel@geekhood.net
search.js
in java/doc
 297 17 2023-01-05 2024-12-23 2 2 information@libjpeg-turbo.org kornel@geekhood.net
jcgryext-mmi.c
in simd/mips64
 285 1 2019-12-17 2021-02-26 2 2 information@libjpeg-turbo.org kornel@geekhood.net
jchuff-neon.c
in simd/arm/aarch32
 241 - 2018-09-24 2021-02-26 3 2 jonathan.wright@arm.com kornel@geekhood.net
jdsample-mmi.c
in simd/mips64
 222 2 2019-12-17 2021-02-26 2 2 information@libjpeg-turbo.org kornel@geekhood.net
211 - 2022-11-02 2024-12-23 5 2 information@libjpeg-turbo.org kornel@geekhood.net
jccolext-neon.c
in simd/arm/aarch64
 210 1 2019-11-26 2021-02-26 3 2 jonathan.wright@arm.com kornel@geekhood.net
jfdctfst-mmi.c
in simd/mips64
 206 1 2019-12-17 2021-02-26 2 2 information@libjpeg-turbo.org kornel@geekhood.net
jfdctint-altivec.c
in simd/powerpc
 180 1 2016-11-15 2021-01-22 7 2 information@libjpeg-turbo.org kornel@geekhood.net
all_8.js
in doc/html/search
 142 - 2020-10-01 2024-12-23 10 2 information@libjpeg-turbo.org kornel@geekhood.net
jcolsamp.inc
in simd/nasm
 129 - 2016-11-15 2020-02-13 6 2 information@libjpeg-turbo.org kornel@geekhood.net
script.js
in java/doc
 119 6 2017-06-27 2024-12-23 4 2 information@libjpeg-turbo.org kornel@geekhood.net
jdmerge-mmi.c
in simd/mips64
 108 - 2019-12-17 2021-02-26 2 2 information@libjpeg-turbo.org kornel@geekhood.net
menu.js
in doc/html
 108 4 2020-10-01 2024-12-23 4 2 information@libjpeg-turbo.org kornel@geekhood.net
strtest.c
in root
 106 2 2022-02-10 2024-12-23 7 2 information@libjpeg-turbo.org kornel@geekhood.net
jccolor-mmi.c
in simd/mips64
 105 - 2019-12-17 2021-02-26 2 2 information@libjpeg-turbo.org kornel@geekhood.net
104 - 2021-04-02 2024-12-23 21 2 information@libjpeg-turbo.org kornel@geekhood.net
jdicc.c
in root
 103 - 2017-01-19 2022-11-02 10 2 information@libjpeg-turbo.org information@libjpeg-turbo.org
jfdctfst-altivec.c
in simd/powerpc
 102 1 2016-11-15 2018-11-11 4 2 information@libjpeg-turbo.org kornel@geekhood.net
jsimdcfg.inc.h
in simd/nasm
 98 - 2018-04-10 2021-01-22 4 2 information@libjpeg-turbo.org kornel@geekhood.net
97 - 2019-03-08 2021-02-26 2 2 information@libjpeg-turbo.org kornel@geekhood.net
jdmerge-altivec.c
in simd/powerpc
 96 - 2016-11-15 2018-11-11 4 2 information@libjpeg-turbo.org kornel@geekhood.net
jdcolor-mmi.c
in simd/mips64
 96 - 2019-12-17 2021-02-26 2 2 information@libjpeg-turbo.org kornel@geekhood.net
jsimdcfg.inc
in simd/nasm
 93 - 2018-04-10 2018-11-11 2 2 information@libjpeg-turbo.org kornel@geekhood.net
jcgray-mmi.c
in simd/mips64
 91 - 2019-12-17 2021-02-26 2 2 information@libjpeg-turbo.org kornel@geekhood.net
jquanti-mmi.c
in simd/mips64
 87 1 2019-12-17 2021-02-26 2 2 information@libjpeg-turbo.org kornel@geekhood.net
jccolor-altivec.c
in simd/powerpc
 81 - 2016-11-15 2018-11-11 4 2 information@libjpeg-turbo.org kornel@geekhood.net
80 - 2021-04-08 2024-12-23 11 2 information@libjpeg-turbo.org kornel@geekhood.net
jcgray-altivec.c
in simd/powerpc
 76 - 2016-11-15 2018-11-11 4 2 information@libjpeg-turbo.org kornel@geekhood.net
76 - 2021-04-06 2024-12-23 11 2 information@libjpeg-turbo.org kornel@geekhood.net
76 - 2023-01-05 2024-12-23 5 2 information@libjpeg-turbo.org kornel@geekhood.net
75 - 2021-04-02 2024-12-23 14 2 information@libjpeg-turbo.org kornel@geekhood.net
in
 74 - 2020-07-27 2021-01-22 3 2 information@libjpeg-turbo.org kornel@geekhood.net
tjbenchtest.cmake
in cmakescripts
 73 - 2023-01-05 2024-12-23 3 2 information@libjpeg-turbo.org kornel@geekhood.net
73 - 2023-01-05 2024-12-23 4 2 information@libjpeg-turbo.org kornel@geekhood.net
73 - 2023-01-05 2024-12-23 4 2 information@libjpeg-turbo.org kornel@geekhood.net
jdcolor-altivec.c
in simd/powerpc
 72 - 2016-11-15 2018-11-11 4 2 information@libjpeg-turbo.org kornel@geekhood.net
72 - 2022-11-16 2024-12-23 5 2 information@libjpeg-turbo.org kornel@geekhood.net
enumvalues_0.js
in doc/html/search
 67 - 2020-10-01 2024-12-23 11 2 information@libjpeg-turbo.org kornel@geekhood.net
60 - 2021-04-02 2024-12-23 13 2 information@libjpeg-turbo.org kornel@geekhood.net