Timeline performance
Hi all. I have been trying some video editing with Cinelerra. It seems a very powerfull program but I am surprised of the clunkyness of timeline when I move video pieces, or select them for moving. My tests are very humble. Only two pieces of video of no more than 20 seconds. It is very frustrating to be precise enough when moving parts. Is it normal? Perhaps some bug with my media or configuration? Video composition in previewer is fast and very good, but not commented simple operations. Comparing other options, like Olive editor, in which working with parts is very fast and precise I ask myself if there is space for Cinelerra optimizations in this matter. Thank you very much for your work :) Greets. -- David
David, For Ubuntu 19, timeline speed seemed to be slow and LFOM informed us of this in the Cinelerra-gg.org Forum. He tested mods we added and said that these helped a lot. These speed improvements for line drawing on the timeline use Bresenham's line algorithm. It is very difficult to diagnose a problem like "it seems to run slow" because it does not run slow for us on a laptop and desktop with the Fedora operating system. If you can provide additional data, such as which Operating System you use or you want us to check for slowness on a specific small piece of media (upload somewhere or email to [email protected] if you want it to remain private). Or if you would like to check the improvements using Brensenham, we can create a temporary static tar for your operating system (all new builds will be provided at the end of the month on April 30th). Any further specific information you can provide may help us solve a problem so we appreciate it. Phyllis/gg On Fri, Apr 24, 2020 at 10:44 AM david <[email protected]> wrote:
Hi all.
I have been trying some video editing with Cinelerra. It seems a very powerfull program but I am surprised of the clunkyness of timeline when I move video pieces, or select them for moving. My tests are very humble. Only two pieces of video of no more than 20 seconds. It is very frustrating to be precise enough when moving parts. Is it normal? Perhaps some bug with my media or configuration? Video composition in previewer is fast and very good, but not commented simple operations.
Comparing other options, like Olive editor, in which working with parts is very fast and precise I ask myself if there is space for Cinelerra optimizations in this matter.
Thank you very much for your work :)
Greets.
-- David -- Cin mailing list [email protected] https://lists.cinelerra-gg.org/mailman/listinfo/cin
El viernes 24 de abril, Phyllis Smith escribió:
Any further specific information you can provide may help us solve a problem so we appreciate it. Phyllis/gg
Hi, Phyllis. Sorry for my lazy message. I use Debian Testing. When I write about slowness is because it is very slow. When I click on a video piece it can go 1 second until it is red coloured indicating it is selected. If I move the piece in timeline, trying to join to another piece, for example, movement is very sluggish and clunky. Perhaps I can record a video from my desktop for your evaluation. Thank you and don't worry for now. I see it is very important I am much more precise about this issue :D -- David
David, Just one quick thing for you to try though. Timing and thus speed is determined by the audio. Recently a Debian 10 user reported that when he had Settings->Preferences, Playback A set to PulseAudio, it was slow. He switched back to Alsa, and then it was OK. Phyllis On Fri, Apr 24, 2020 at 12:47 PM david <[email protected]> wrote:
El viernes 24 de abril, Phyllis Smith escribió:
Any further specific information you can provide may help us solve a problem so we appreciate it. Phyllis/gg
Hi, Phyllis.
Sorry for my lazy message. I use Debian Testing. When I write about slowness is because it is very slow. When I click on a video piece it can go 1 second until it is red coloured indicating it is selected. If I move the piece in timeline, trying to join to another piece, for example, movement is very sluggish and clunky. Perhaps I can record a video from my desktop for your evaluation.
Thank you and don't worry for now. I see it is very important I am much more precise about this issue :D
-- David -- Cin mailing list [email protected] https://lists.cinelerra-gg.org/mailman/listinfo/cin
El viernes 24 de abril, Phyllis Smith escribió:
David, Just one quick thing for you to try though. Timing and thus speed is determined by the audio. Recently a Debian 10 user reported that when he had Settings->Preferences, Playback A set to PulseAudio, it was slow. He switched back to Alsa, and then it was OK. Phyllis
In my case, sound is configured to ALSA :( -- David
David, Thanks for the capture -- I reviewed it and "yes" it looks slow by comparison to when I move video in the same manner. Are you using Debian 9 or Debian 10? We do have a static tar build at: https://cinelerra-gg.org/download/testing/cinelerra-5.1-debian10-x86_64-stat... that has some speed improvements in it. Or if you are using Debian 9, we can make a static tar for that instead. Static tars are very easy to load and allow for putting a temporary test build in its own space so as not to overwrite your current Cinelerra. On Fri, Apr 24, 2020 at 1:15 PM david <[email protected]> wrote:
El viernes 24 de abril, Phyllis Smith escribió:
David, Just one quick thing for you to try though. Timing and thus speed is determined by the audio. Recently a Debian 10 user reported that when he had Settings->Preferences, Playback A set to PulseAudio, it was slow. He switched back to Alsa, and then it was OK. Phyllis
In my case, sound is configured to ALSA :(
-- David -- Cin mailing list [email protected] https://lists.cinelerra-gg.org/mailman/listinfo/cin
El viernes 24 de abril, Phyllis Smith escribió:
We do have a static tar build at:
https://cinelerra-gg.org/download/testing/cinelerra-5.1-debian10-x86_64-stat... that has some speed improvements in it.
Oawww!! That build is very fast. Problems seems completely fixed :D Thank yor very much. -- David
El viernes 24 de abril, Phyllis Smith escribió:
It is very difficult to diagnose a problem like "it seems to run slow" because it does not run slow for us on a laptop and desktop with the Fedora operating system. If you can provide additional data...
I send you a small video showing tha lag between mouse pointer and clunky video fragments move. -- David
participants (2)
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Phyllis Smith