- Cin - Cinelerra-GG Mailing Lists

Seconds to preroll render
by Andrea paz 07 May '22

07 May '22

One thing that has always bothered me is that in the transition from an 11 year old notebook to a mid-to-high level PC, playback and especially reverse playback always suffered from the same lags and framerate drops. There wasn't the improvement I expected. In the Preferences > Performance tab, I tried increasing the "Cache size" from 256MB (default) to 4096MB without noticing any change (I have 32GB of RAM). I never touched the "Seconds to preroll renders" option, which by default is 0.5 seconds. Now I've tried to set it to 1.0s and the improvement in playback and reverse playback is EVIDENT! If anyone feels like trying to take a problematic project in timeline and increase the preroll time and then report the results, it would be a favor to me. If the improvement is also confirmed by others I will immediately put the tip in the manual, because it seems very important to me.

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OpenCL and DaVinchi Resolve
by Andrew Randrianasulu 06 May '22

06 May '22

https://people.freedesktop.org/~cbrill/dri-log/?channel=dri-devel&highlight… === 00:04 karolherbst: jekstrand: I found the first program using cl_khr_gl_sharing for real :D 00:05 jekstrand: oh? 00:05 karolherbst: some pro video editing tool called davinci resolve 00:05 karolherbst: it doesn't even work with intels compute runtime === huh, exactly like I hoped to use this extension in Cinelerra-gg) Of course because I can't even make substream works in TrueHD encoder I am hardly qualified anywhere near enough level...

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Fwd: mpegts patches update to ffmpeg git
by Andrew Randrianasulu 05 May '22

05 May '22

I re-typed/re-applied your patches against ffmpeg.git, so hopefully we will test them again soon (in Cin-gg) . patch 0001 probably not needed anymore? single.diff mostly for easier testing in our buildsystem... ---------- Forwarded message ---------- From: *Андрей Рандрианасулу* <randrik(a)mail.ru> Date: Thursday, May 5, 2022 Subject: mpegts patches update to ffmpeg git To: randrianasulu <randrianasulu(a)gmail.com> from https://github.com/cus/ffmpeg/commits/mpegts2 -- Андрей Рандрианасулу

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can we push 0009-fileexr-forward-port-openexr-3.patch early?
by Andrew Randrianasulu 05 May '22

05 May '22

It needed on NetBSD (i need one more patch rel. to netbsd.patch I made earlier, but I hope to check it first on Freebsd..)

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Re: [Cin] PreRoll in Cin Digest, Vol 43, Issue 13,
by Richard Nolde 04 May '22

04 May '22

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thdmerge
by Andrew Randrianasulu 04 May '22

04 May '22

So, I slightly modified Windows version of thdmerge. in theory it should prepare thd (trueHD) file for blu-ray muxing. make file.thd and file.ac3 with ffmpeg $ ffmpeg -i ~/vid_20210526.mp4 -vn -c:a ac3 b.ac3 $ ffmpeg -i ~/vid_20210526.mp4 -vn -c:a truehd -strict -2 a.thd compile gcc -o thdmerge thdmerge.cpp run ./thdmerge a.thd b.ac3 full.thd+ac3 try to mux this resulting file with tsmuxer

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pcm_bluray updated again!
by Andrew Randrianasulu 03 May '22

03 May '22

https://git.ffmpeg.org/gitweb/ffmpeg.git/blobdiff/b67572c7c707d508b15ce0543… need to adapt..... Paul, *BIG* thanks for speedy responce!

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opencv build trim
by Andrew Randrianasulu 02 May '22

02 May '22

https://github.com/Randrianasulu/CinelerraGG-slackbuild/blob/master/openCV4… basically re-applied locally because opencv build eats a bit too much space...

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April 2022 AppImages
by Phyllis Smith 02 May '22

02 May '22

CinGG new appimages for April 2022 are now available along with updated release notes and manual. Look for 0430 in: https://cinelerra-gg.org/download/images/ Thanks for continuing to support and especially use of Cinelerra. Latest Release Notes inclusion: *********************************** GIT for Cinelerra-GG has the following changes from 04/01/2022-04/30/2022 *DPX image reader* added as provided *by Manual V* (with a couple of Andrew minor mods). This supports reading a DPX list file, but not writing at this time. *Bluray enhancements* as provided *by Andrew *include: 1) Additional “Profile” choice box with the default to be the current one in use with the *new “lpcm”* - linear pulse code modulation choice method of digitally encoding uncompressed audio info. 2) *Chapter interval* amount can be changed to a different value from the default of every 5 minutes by adding ' -c timeinterval in ticks' as the first argument to bdwrite in the bd.sh job generated by BD Render and then executing that job manually. On 1 test computer 100 ticks equaled 20 seconds. 3) New “*use tsmuxer*” option checkbox when rendering for Bluray output. Usage of tsmuxer requires that your computer have the tsmuxer software installed along with any of its prerequisites. The default will be as is currently with no tsmuxer. TsMuxer is a transport stream muxer for remuxing/muxing elementary streams. Although both lpcm and tsmuxer have been tested by Phyllis to function, due to lack of equipment there is no verification that using these sounded any different on current players. Minor changes were made in the following files to accommodate other operating systems such as bsd, ppc, netbsd, etc. : compile_multibit_x265.txt, bld_prepare.sh to add Arch, configure.ac, fileogg.C, filegif.C, file.C cinelerra/Makefile, guicast/Makefile, thirdparty/Makefile. Bug of uninitialized variables in trackcanvas.C fixed by Andrew.

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Re: [Cin] line in manual saying 32-bit OS not enough for BD
by Andrew Randrianasulu 30 Apr '22

30 Apr '22

I think you can make BD if you set enough swap space something like modprobe zram echo 2000000000 > /sys/block/zram0/disksize mkswap /dev/zram0 swapon /dev/zram0 for 2 gb swap on 6 gb ram machine (usually pure 32 bit kernel can't see more than 4gb, but PAE kernel can, and you might have 64 bit kernel with 32-bit user apps/libs - thus 4 gb address space per process, and access to all physacal ram and 64-bit kernel optimizations and 64/32 bit x86 kvm!)

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