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Message #04256
Re: [Bug 1246976] Re: OpenShot crashing when saving project, then using the timeline or controls to set playback position
No worries. It is why I'm using Manjaro (an arch derivated) because I have
arrived at the same conclusion. For sample, watching the same video on
SMplayer on the both system and you notice a different result, perfect on
Manjaro.
You should use/try FFmpeg and not his fork (like now). It will be removed
OS and all software using it but after you could reinstall them easily.
Take a look at this thread :
http://openshotusers.com/forum/viewtopic.php?f=12&t=1261
2013/11/2 Michael Hurt <midnight_star@xxxxxxxxxxxxx>
> *** This bug is a duplicate of bug 1176463 ***
> https://bugs.launchpad.net/bugs/1176463
>
> To be honest, I'm sure which version the individual libraries were. The
> initial problem I was having (the reason I upgraded my computers here),
> wasn't related to OpenShot specifically - it consisted of the HDMI audio
> port wasn't recognized/working. On the same 64bit system (the one in
> this bug report), I believe the HDMI problem was around Ubuntu 11.10 or
> 12.04LTS. I upgraded to 12.10, then upto 13.04. The upgrade was more of
> a "release" level upgrade rather than individual libraries like MLT (by
> itself). The upgrade seemed to solve the HDMI problem (HDMI wasn't
> recognized as an audio port on the RADEON card but is now), but somehow
> opened up other problems. I'm not sure, overall, if it's completely
> related - here's a few things I noticed:
>
> 1) StopMotion crashed when camera was activated (also a segmentation
> fault) but worked prior to upgrading. Following a bug report, the
> parameters passed to the underlying "capture" program from StopMotion,
> had somehow gotten nulled out. Adding the missing parameters manually
> back in seemed fixed it. So I ruled this one out as being a build
> problem with either the software or Ubuntu release.
>
> 2) The audio record quality on the 64bit system is terrible and bugged -
> makes getting a clean recording almost impossible (the same Ubuntu
> release 13.10 has no such problems on a 32bit single core system). Not
> sure if the problem is 32bit chips and 64bit libraries. For my audio
> recording I had to revert back to a much slower 1.8ghz cpu and 32bit
> system. Strange notes there include not being able to get a high enough
> recording volume (64bit system) using Audacity (it barely shows any
> sound level being recorded even when pre-amping it up full). When the
> audio is recorded, it's well under the clipping range, but during
> playback sounds like it's been recorded with the input gain too high
> (clipping sounds like a light static or suble pops). When the same audio
> clip is loaded into OpenShot, exported to a video, then the video
> reloaded back into Audacity to extract the audio, the audio is showing
> as being clipped instead of being at the same exported volume. It's like
> the audio volume has just been doubled. It's almost like a data problem
> where two different programs are "seeing" the same thing in the audio
> differently, or one isn't using all the available data values the same
> as the other.
>
> 3) Running OpenShot from the command line displays "Seg fault" when it
> crashes - after saving then trying to change the playback position of
> the current project. (this bug report).
>
> However, in both the 64bit and 32bit systems if the current application
> (noticed with Audacity and OpenShot) isn't allowed to complete it's
> current function before starting a new one (for example, like clicking
> "stop" while recording and not giving it time that to complete (whether
> buffering or allocating memory/staging to swap), then clicking "back to
> start", Audacity will hang. The same with OpenShot. This made me think
> it was something with the underlying libraries of both. With OpenShot,
> if I was playing back the current project, clicked "stop" then
> immediately clicked "back to start", OpenShot would hang - if I didn't
> wait until "stop" had completed. That same behaviour exists with other
> applications also. To me, this is an underlying shared library or os
> problem somewhere.
>
> Sorry for making this so long, but I trying to give you a full picture
> of the things I'd noticed so far (the applications I used the most), and
> hopefully help isolate a overlaying library that might be causing the
> problem.
>
> --
> You received this bug notification because you are a member of OpenShot
> Bugs, which is subscribed to OpenShot Video Editor.
> https://bugs.launchpad.net/bugs/1246976
>
> Title:
> OpenShot crashing when saving project, then using the timeline or
> controls to set playback position
>
> Status in OpenShot Video Editor:
> New
>
> Bug description:
> CPU: AMD 64bit 8 core cpu
> OS: Ubuntu Linux (64bit) Raring ringtail upgraded online from 12.04LTS;
> 12.04LTS installed from ISO.
>
> Installed OpenShot from "Ubuntu Software Center"
> version 1.4.4~alpha1
>
> Melt: 0.8.8
> FFMPEG: 0.8.6-6:0.8.6-1ubuntu2 insstalled using "Ubuntu Software Center"
>
> -----
>
> What's odd is I think this is both an OS level and higher library
> bug(s). Occassionally the entire OS will hang with the mouse cursor will
> still work, but the graphics seem to be frozen. Getting loads of
> segmentation faults from OpenShot when...
> Saving the project, then going to the timeline or video controls to set
> the current playback position, or advance back to the beginning - pretty
> much any change in the videos position = instant crash. If I reload the
> same project after saving it, without changing the current playback
> position, I have no such problem until I save and immediately try to change
> the timelines position (seems to be something with that entire process).
> Oddly enough, I could postone the "crash" by saving, adding a new track,
> then setting the playback position where-ever I wanted. Worked for awhile,
> but then crashed after every save again.
>
> On the OS side, i've noticed on a slower single core system (1.8
> processor), if I click an control or option anywhere in OpenShot (or
> anything for that matter, ie.,. audacity) and don't allow the previous
> function to complete... the applications hang. It's like a messaging
> sync problem with the underlying libraries (doesn't wait for the
> current function to conplete before attempting the next one).
>
> Also, the first video I made with OpenShot a month ago, didn't exibit
> these problems. It seems to have started within the past 3 weeks
> (perhaps during the upgrade, or with an underlying library not quite
> in sync with the layers above).
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/openshot/+bug/1246976/+subscriptions
>
> --
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--
Olivier
Cenwen un elfe sur la banquise/ an elve on the ice
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