New Screen Capture Lossless Codec released!

DmitriyV2 · 27th March 2006, 23:02

MSU Screen Capture Lossless Codec 1.0 released!

This codec is intended for lossless compression of video taken from computer screen. It may be used for making software presentations, video lessons and tutorials, recording video from games etc.

Main features:
* Now many times better than Huffyuv on such files!
* We clame best compression rates (please check us!)

We've compared results of proposed algorithm with other available codecs results.
Comparison was made on several sequencies captured in DOSBox emulator from several games (UFO, Jazz Jackrabbit, Test Drive 3, Ultima 6 and Lemmings). All these games except Lemmings ran in 256 colors mode, Lemmings ran in 16 colors mode.

Codecpage: http://www.compression.ru/video/ls-c..._codec_en.html
Direct link to exe: http://www.compression.ru/video/ls-c...u-sc-codec.exe

Enjoy!

siddharthagandhi · 27th March 2006, 23:04

the link don't work

DmitriyV2 · 27th March 2006, 23:20

Quote:

Originally Posted by siddharthagandhi

the link don't work

What link? I check them - both works now. (thanks for report anyway)

mod · 27th March 2006, 23:21

yes it does

GmorG McRoth · 28th March 2006, 00:52

Nice!
MSU codec beat even Techsmith screen capture codec

I made test on small screen recording in 24 fps (Recording lenght 0:49.66 min, grabbed in techsmith camtasia with techsmith codec, with no audio, resolution 1024x768 in 24bit color):

Code:

    MSU Screen Capture Lossless Codec 1.0.avi        2,13 MB        2 186 KB
    TechSmith Screen Capture Codec 2.06.avi          3,06 MB        3 138 KB
    FM Screen Capture Codec 1.0.avi                  5,94 MB        6 090 KB
    CAMstudio Lossless Codec 1.0.avi                 7,53 MB        7 714 KB
    Lagarith 1.3.8.avi                               80,7 MB       82 712 KB
    CorePNG 0.8.2.avi                                85,3 MB       87 358 KB
    Alparysoft lossless codec 2.0.avi                107 MB       110 584 KB
    uncompressed.avi                                 2,62 GB    2 748 582 KB

settings were set for max compression for every codec (null frames on for lagarith) and full lossless (no color conversion).

Also, MSU codec seemed to be fastest in bunch!
wery nice indeed

DmitriyV2 · 28th March 2006, 11:25

Quote:

Originally Posted by GmorG McRoth

I made test on small screen recording in 24 fps (Recording lenght 0:49.66 min, grabbed in techsmith camtasia with techsmith codec, recompressed with Techsmith in best compression settings, with no audio, resolution 1024x768 in 24bit color. MSU codec in default settings.):

MSU Screen Capture Lossless Codec 1.0 = 2,186 KB
TechSmith Screen Capture Codec 2.06= 3,138 KB

wery nice indeed

Our research is in maximum compression.

Thanks for independent comparison!

dragongodz · 28th March 2006, 16:49

tested on first 40 seconds of the movie stuart little. this includes the columbia(movie studio) opening and a bit of the opening credits.
resized to 352x288 at 25fps.

MSU
----
size = 115mb (same with fade detection turned off)
time = 2 minute (1 minute 57 seconds with fade turned off)

Lagarith RGB mode
------------------
size = 95mb
time = 44 seconds

Lagarith yuy2 mode(both input and in codec settings)
-------------------
size = 56.7mb
time = 36 seconds

null frames was disabled for both Lagarith encodes.

i also got a completely black picture for MSU playback. turning output to overlay in MPC i got what appeared to be a couple of frames but still seemed to get stuck on a frame and not show the ones after it.

i will try some different clips tomorrow and see what happens then.

DmitriyV2 · 28th March 2006, 18:01

Quote:

Originally Posted by dragongodz

tested on first 40 seconds of the movie stuart little. this includes the columbia(movie studio) opening.

Maybe this was not so clear, but "MSU Screen Capture Lossless codec" is designed for lossless compression of specific video taken from computer screen.

(it's main competitors - TechSmith Screen Capture Codec and FM Screen Capture Codec). It overtake Lagarith on such video in several times.

Please use "MSU Lossless Video Codec" for lossless compression of movies: http://compression.ru/video/ls-codec/index_en.html

Quote:

Originally Posted by dragongodz

i will try some different clips tomorrow and see what happens then.

Ok! Please take into account - sequences with 265 or 16 colors with dithering are welcome! On such sequences (in program tutorials or old game examples) common codecs like XviD work not so good. Such area (not so big, but not so small) - is area of Screen Capture Codecs. Also please use other screen capture codecs or MSU Lossless Codec in your comparison if possible.

DmitriyV2 · 28th March 2006, 18:11

Quote:

Originally Posted by GmorG McRoth

Also, MSU codec seemed to be fastest in bunch!

Wow! It's not so typical for us!

We did not make our own time measurements (speed is next step after bugfixing and public release), but your results sounds encouraging!

siddharthagandhi · 28th March 2006, 23:45

How do I get it to show up in CamStudio?...its not in the codec list

And is it possible to use this with fraps?

Backwoods · 29th March 2006, 00:05

Quote:

Originally Posted by siddharthagandhi

And is it possible to use this with fraps?

Fraps uses it's own codec but it would be nice to see a comparison between this codec and Fraps.

siddharthagandhi · 29th March 2006, 23:43

fraps codec is absolutely horrible

if recorded at full resolution something as simple as a four minute video can take 4 GB

if recorded at half resolution a video would take up 10 minutes-->1.5 GB

Backwoods · 30th March 2006, 06:30

A comparison of system resources and compression ratio based on the same source footage. I could easily say Fraps will turn 4min of captured video into 2.4gigs instead of your 4gigs.

tekNerd · 30th March 2006, 07:22

I can't see it in CamStudio's codecs list neither in DemoStudio's list!
Too bad for me!

dragongodz · 30th March 2006, 13:01

ok a new test of a captured screen while i opened some windows, looked at a text file etc etc etc. only 30 second clip(720x576 section of my screen) because capturing it uncompressed was huge of course.

lagarith
-------
size = 30.6mb
time = 28seconds

MSU capture codec
------------------
size = 6.13mb
time = 35 seconds

MSU lossless video codec
------------------------
size = 6.32mb
time = 3 minutes 5 seconds
thats set at balanced, set to max compression estimated time was over 1 hour.

heres a funny result though. i turned it to maximise speed and it resulted in a size of 6.22mb and time was 2 minutes 26 seconds. so smaller and faster.

so yes this codec appears to compress things like screen captures very good. however of note is the speed. that it was not compressing real time with my athlonxp 2400+ while lagarith easily did. this wouldnt be a problem if capturing at a lower rate such as 15fps of course but if i wanted to capture realtime i suspect i would end up with some dropped frames using this codec. if you can speed it up a bit, even as an optional compression loss(so faster but doesnt compress quite aswell option), then this would be a very good codec for any capture speed.

DmitriyV2 - a couple of tips about critiquing peoples posts.

Quote:

Please take into account - sequences with 265 or 16 colors with dithering are welcome!

please do not try and tell people they can not test on any other type of footage to see what the codec does with it. yes you said what type of footage this was for but if i want to see how it handles movie footage aswell and report that then its also a valid test and possibly important information for other users.

Quote:

Also please use other screen capture codecs or MSU Lossless Codec in your comparison if possible.

please do not try and tell me what codecs i should or should not test against. the fact is Lagarith is also a lossless codec and infact you used not only it but corepng, huffyuv etc in your own tests. if you use and compare against a codec then others have every right to make their own comparisons with the same codecs, or even other lossless codecs you may not have.

slavickas · 30th March 2006, 13:04

well screen capturing usually is done at few fps imho

dragongodz · 30th March 2006, 13:24

Quote:

well screen capturing usually is done at few fps imho

to which i already said this would not then be a problem. however screen captures are not always done at low rates. an option or ability to handle such cases would not be a bad thing would it ?

signatory · 30th March 2006, 14:42

This sounds very interesting, so yeah please make it work in CamStudio...

(I also tried)

DmitriyV2 · 30th March 2006, 21:28

Quote:

Originally Posted by signatory

This sounds very interesting, so yeah please make it work in CamStudio...

(I also tried)

We found a problem root. It will work if monitor will be in RGB24 mode! Other modes will be patched in next version.

DmitriyV2 · 30th March 2006, 21:47

dragongodz! Thanks for comparison!

Other screen capture codecs is our real competitors (see results of GmorG McRoth), whats why comparisons with them are interesting for us.

Also: This two codecs has completly different compression methods inside. But in future we planning to merge this two codecs to one codec with sophisticated data type recognition. Hope we fulfil this plans after set of current patches and fixes (it's easy technically to test and fix separate codec). Inspirit support is welcome!

27th March 2006, 23:02	#1 \| Link
DmitriyV2 MSU G&M Lab Join Date: Oct 2004 Location: MSU G&M Lab Posts: 318	New Screen Capture Lossless Codec released! MSU Screen Capture Lossless Codec 1.0 released! This codec is intended for lossless* compression of video taken from computer screen. It may be used for making software presentations, video lessons and tutorials, recording video from games etc.* Main features: * Now many times better than Huffyuv on such files! * We clame best compression rates (please check us!) We've compared results of proposed algorithm with other available codecs results. Comparison was made on several sequencies captured in DOSBox emulator from several games (UFO, Jazz Jackrabbit, Test Drive 3, Ultima 6 and Lemmings). All these games except Lemmings ran in 256 colors mode, Lemmings ran in 16 colors mode. Codecpage: http://www.compression.ru/video/ls-c..._codec_en.html Direct link to exe: http://www.compression.ru/video/ls-c...u-sc-codec.exe Enjoy! __________________ With regards Dmitriy Vatolin www.compression.ru/video/ (Last updates: MSU Video Quality Metric 2.0beta and "х264 Options Analysis"!) Senior editor of Compression-links.info

27th March 2006, 23:21	#4 \| Link
mod keep manzo Join Date: Sep 2005 Location: Florence, IT Posts: 529	yes it does __________________ 10 categories of persons exist : those who know the binary system and those who do not know it

28th March 2006, 00:52	#5 \| Link
GmorG McRoth Registered User Join Date: Jan 2006 Location: Warsaw, Poland Posts: 136	Nice! MSU codec beat even Techsmith screen capture codec I made test on small screen recording in 24 fps (Recording lenght 0:49.66 min, grabbed in techsmith camtasia with techsmith codec, with no audio, resolution 1024x768 in 24bit color): Code: MSU Screen Capture Lossless Codec 1.0.avi 2,13 MB 2 186 KB TechSmith Screen Capture Codec 2.06.avi 3,06 MB 3 138 KB FM Screen Capture Codec 1.0.avi 5,94 MB 6 090 KB CAMstudio Lossless Codec 1.0.avi 7,53 MB 7 714 KB Lagarith 1.3.8.avi 80,7 MB 82 712 KB CorePNG 0.8.2.avi 85,3 MB 87 358 KB Alparysoft lossless codec 2.0.avi 107 MB 110 584 KB uncompressed.avi 2,62 GB 2 748 582 KB settings were set for max compression for every codec (null frames on for lagarith) and full lossless (no color conversion). Also, MSU codec seemed to be fastest in bunch! wery nice indeed __________________ I'm sick of following my dreams. I'm just going to ask them where they're goin', and hook up with them later. ---Mitch Hedberg Last edited by GmorG McRoth; 28th March 2006 at 17:05.

28th March 2006, 16:49	#7 \| Link
dragongodz .... Join Date: May 2002 Location: Australia Posts: 2,789	tested on first 40 seconds of the movie stuart little. this includes the columbia(movie studio) opening and a bit of the opening credits. resized to 352x288 at 25fps. MSU ---- size = 115mb (same with fade detection turned off) time = 2 minute (1 minute 57 seconds with fade turned off) Lagarith RGB mode ------------------ size = 95mb time = 44 seconds Lagarith yuy2 mode(both input and in codec settings) ------------------- size = 56.7mb time = 36 seconds null frames was disabled for both Lagarith encodes. i also got a completely black picture for MSU playback. turning output to overlay in MPC i got what appeared to be a couple of frames but still seemed to get stuck on a frame and not show the ones after it. i will try some different clips tomorrow and see what happens then. __________________ Narrator: And of course, with the birth of the artist came the inevitable afterbirth - the critic. (History of the World part 1) Last edited by dragongodz; 28th March 2006 at 17:01.

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27th March 2006, 23:04	#2 \| Link
siddharthagandhi Go Nero Digital Join Date: Jan 2006 Location: Edison, NJ Posts: 466	the link don't work

28th March 2006, 23:45	#10 \| Link
siddharthagandhi Go Nero Digital Join Date: Jan 2006 Location: Edison, NJ Posts: 466	How do I get it to show up in CamStudio?...its not in the codec list And is it possible to use this with fraps?

29th March 2006, 23:43	#12 \| Link
siddharthagandhi Go Nero Digital Join Date: Jan 2006 Location: Edison, NJ Posts: 466	fraps codec is absolutely horrible if recorded at full resolution something as simple as a four minute video can take 4 GB if recorded at half resolution a video would take up 10 minutes-->1.5 GB

30th March 2006, 06:30	#13 \| Link
Backwoods ReMember Join Date: Nov 2003 Posts: 416	A comparison of system resources and compression ratio based on the same source footage. I could easily say Fraps will turn 4min of captured video into 2.4gigs instead of your 4gigs.

30th March 2006, 07:22	#14 \| Link
tekNerd just noobing around Join Date: Feb 2006 Location: now in Italy, but I am from Romania Posts: 64	I can't see it in CamStudio's codecs list neither in DemoStudio's list! Too bad for me!

30th March 2006, 13:04	#16 \| Link
slavickas I'm Shpongled Join Date: Nov 2001 Location: Lithuania Posts: 294	well screen capturing usually is done at few fps imho

30th March 2006, 14:42	#18 \| Link
signatory Registered User Join Date: Oct 2005 Posts: 41	This sounds very interesting, so yeah please make it work in CamStudio... (I also tried)

30th March 2006, 21:47	#20 \| Link
DmitriyV2 MSU G&M Lab Join Date: Oct 2004 Location: MSU G&M Lab Posts: 318	dragongodz! Thanks for comparison! Other screen capture codecs is our real competitors (see results of GmorG McRoth), whats why comparisons with them are interesting for us. Also: This two codecs has completly different compression methods inside. But in future we planning to merge this two codecs to one codec with sophisticated data type recognition. Hope we fulfil this plans after set of current patches and fixes (it's easy technically to test and fix separate codec). Inspirit support is welcome!