Slow playback

[Vanessa Lee]

I installed openshot-mlt 0.9.54 from the Debian packages on 64 bit AMD Jaunty 9.04.

If I preview or play, the playback starts with a normal speed playback for about a second and then it starts to creep extremely slowly from then on. The audio also starts to get glitchy.

This happens when previewing and playback for any video or audio, I tried different formats, and they all seem to have the exact same behavior. Totem plays video normally without any problem so I think the problem might be openshot.

[Jonathan Thomas (jonoomph)]

Do you have this package installed? libsdl1.2debian-*pulseaudio? If not,
give that a try. *

On Fri, Dec 4, 2009 at 7:34 PM, SandraLAVixen <email address hidden>wrote:

> Public bug reported:
>
> I installed openshot-mlt 0.9.54 from the Debian packages on 64 bit AMD
> Jaunty 9.04.
>
> If I preview or play, the playback starts with a normal speed playback
> for about a second and then it starts to creep extremely slowly from
> then on. The audio also starts to get glitchy.
>
> This happens when previewing and playback for any video or audio, I
> tried different formats, and they all seem to have the exact same
> behavior. Totem plays video normally without any problem so I think the
> problem might be openshot.
>
> ** Affects: openshot
> Importance: Undecided
> Status: New
>
> --
> Slow playback
> https://bugs.launchpad.net/bugs/492701
> You received this bug notification because you are a member of OpenShot
> Developers, which is subscribed to OpenShot Video Editor.
>
> Status in OpenShot Video Editor: New
>
> Bug description:
> I installed openshot-mlt 0.9.54 from the Debian packages on 64 bit AMD
> Jaunty 9.04.
>
> If I preview or play, the playback starts with a normal speed playback for
> about a second and then it starts to creep extremely slowly from then on.
> The audio also starts to get glitchy.
>
> This happens when previewing and playback for any video or audio, I tried
> different formats, and they all seem to have the exact same behavior. Totem
> plays video normally without any problem so I think the problem might be
> openshot.
>
>
>
> _______________________________________________
> Mailing list: https://launchpad.net/~openshot.developers<https://launchpad.net/%7Eopenshot.developers>
> Post to : <email address hidden>
> Unsubscribe : https://launchpad.net/~openshot.developers<https://launchpad.net/%7Eopenshot.developers>
> More help : https://help.launchpad.net/ListHelp
>

[Vanessa Lee (vanessax)]

Yup! I sure do! libsdl1.2debian-pulseaudio version 1.2.13-4ubuntu3.

-Sandra

--- On Sat, 12/5/09, Jonathan Thomas <email address hidden> wrote:

> Do you have this package installed?
> libsdl1.2debian-*pulseaudio?  If not,
> give that a try. *
>
> On Fri, Dec 4, 2009 at 7:34 PM, SandraLAVixen
> <email address hidden>wrote:
>
> > Public bug reported:
> >
> > I installed openshot-mlt 0.9.54 from the Debian
> packages on 64 bit AMD
> > Jaunty 9.04.
> >
> > If I preview or play, the playback starts with a
> normal speed playback
> > for about a second and then it starts to creep
> extremely slowly from
> > then on. The audio also starts to get glitchy.
> >
> > This happens when previewing and playback for any
> video or audio, I
> > tried different formats, and they all seem to have the
> exact same
> > behavior. Totem plays video normally without any
> problem so I think the
> > problem might be openshot.
> >
> > ** Affects: openshot
> >     Importance: Undecided
> >         Status: New
> >
> > --
> > Slow playback
> > https://bugs.launchpad.net/bugs/492701
> > You received this bug notification because you are a
> member of OpenShot
> > Developers, which is subscribed to OpenShot Video
> Editor.
> >
> > Status in OpenShot Video Editor: New
> >
> > Bug description:
> > I installed openshot-mlt 0.9.54 from the Debian
> packages on 64 bit AMD
> > Jaunty 9.04.
> >
> > If I preview or play, the playback starts with a
> normal speed playback for
> > about a second and then it starts to creep extremely
> slowly from then on.
> > The audio also starts to get glitchy.
> >
> > This happens when previewing and playback for any
> video or audio, I tried
> > different formats, and they all seem to have the exact
> same behavior. Totem
> > plays video normally without any problem so I think
> the problem might be
> > openshot.
> >
> >
> >
> > _______________________________________________
> > Mailing list: https://launchpad.net/~openshot.developers<https://launchpad.net/%7Eopenshot.developers>
> > Post to     : <email address hidden>
> > Unsubscribe : https://launchpad.net/~openshot.developers<https://launchpad.net/%7Eopenshot.developers>
> > More help   : https://help.launchpad.net/ListHelp
> >
>
> --
> Slow playback
> https://bugs.launchpad.net/bugs/492701
> You received this bug notification because you are a direct
> subscriber
> of the bug.
>
> Status in OpenShot Video Editor: New
>
> Bug description:
> I installed openshot-mlt 0.9.54 from the Debian packages on
> 64 bit AMD Jaunty 9.04.
>
> If I preview or play, the playback starts with a normal
> speed playback for about a second and then it starts to
> creep extremely slowly from then on. The audio also starts
> to get glitchy.
>
> This happens when previewing and playback for any video or
> audio, I tried different formats, and they all seem to have
> the exact same behavior. Totem plays video normally without
> any problem so I think the problem might be openshot.
>
> To unsubscribe from this bug, go to:
> https://bugs.launchpad.net/openshot/+bug/492701/+subscribe
>

[Vanessa Lee (vanessax)]

I got the Openshot update today, but the playback is still slow and now it grinds to a halt.

I tried both preview and playing a track, same behavior.

I tried mp3, wav, m4v, avi, all the same problem.

Current Openshot version is 0.9.54.

Running on Ubuntu Jaunty 9.04.

[Andy Finch (fincha)]

Can you try playing the files with either ffplay or melt (you may need to install these)?

[Vanessa Lee (vanessax)]

Okay, first, I found something unusual, it seems that I have two ffmpegs and ffplays:

user@zareason-limbo:~$ ls -al /usr/bin/ffplay /usr/local/bin/ffplay
-rwxr-xr-x 1 root root 56320 2009-04-10 16:24 /usr/bin/ffplay
-rwxr-xr-x 1 user user 56600 2009-07-19 23:11 /usr/local/bin/ffplay
user@zareason-limbo:~$ which ffplay
/usr/local/bin/ffplay

user@zareason-limbo:~$ /usr/local/bin/ffplay -version
FFplay version git-aa02318, Copyright (c) 2003-2009 Fabrice Bellard, et al.
  configuration: --enable-gpl --enable-nonfree --enable-shared --enable-pthreads --enable-libx264 --enable-libfaac --enable-libtheora --extra-cflags=-fPIC --extra-cflags=-DPIC
  libavutil 50. 3. 0 / 50. 3. 0
  libavcodec 52.32. 0 / 52.32. 0
  libavformat 52.36. 0 / 52.36. 0
  libavdevice 52. 2. 0 / 52. 2. 0
  libswscale 0. 7. 1 / 0. 7. 1
  built on Jul 20 2009 01:11:25, gcc: 4.3.3
FFplay git-aa02318
libavutil 50. 3. 0 / 50. 3. 0
libavcodec 52.32. 0 / 52.32. 0
libavformat 52.36. 0 / 52.36. 0
libavdevice 52. 2. 0 / 52. 2. 0
libswscale 0. 7. 1 / 0. 7. 1

user@zareason-limbo:~$ /usr/bin/ffplay -version
FFplay version 0.5-svn17737+3:0.svn20090303-1ubuntu6, Copyright (c) 2003-2009 Fabrice Bellard, et al.
  configuration: --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --extra-version=svn17737+3:0.svn20090303-1ubuntu6 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --disable-stripping --disable-vhook --enable-libdc1394 --enable-shared --disable-static
  libavutil 49.15. 0 / 49.15. 0
  libavcodec 52.20. 0 / 52.32. 0
  libavformat 52.31. 0 / 52.36. 0
  libavdevice 52. 1. 0 / 52. 2. 0
  libavfilter 0. 4. 0 / 0. 4. 0
  libswscale 0. 7. 1 / 0. 7. 1
  libpostproc 51. 2. 0 / 51. 2. 0
  built on Apr 10 2009 23:20:33, gcc: 4.3.3
FFplay 0.5-svn17737+3:0.svn20090303-1ubuntu6
libavutil 49.15. 0 / 49.15. 0
libavcodec 52.20. 0 / 52.32. 0
libavformat 52.31. 0 / 52.36. 0
libavdevice 52. 1. 0 / 52. 2. 0
libavfilter 0. 4. 0 / 0. 4. 0
libswscale 0. 7. 1 / 0. 7. 1
libpostproc 51. 2. 0 / 51. 2. 0

With that said, I tried using ffplay on all the mentioned audio and video files and there were NO stuttering, slowness, jerkyness, or problems of any sort, it played everything perfectly.

[Andy Finch (fincha)]

In that case, how about melt (which is the MLT command line player)? My guess is that this will have problems playing the files.

[Vanessa Lee (vanessax)]

I tried melt and sure enough it has the exact same slow playback problem exactly like in Openshot.

I paied very close attention to the slow playback and what seems to be happening is that the video is being played slower because the audio is being repeated (stuttering). If it is an audio file then only stuttering occurs.

[Andy Finch (fincha)]

So it seems there is something wrong with your MLT installation - maybe it's related to the fact you have 2 different versions of ffmpeg. You might want to try and clean up your ffmpeg installs and see if that helps, but without a working MLT, you wont get Openshot working as it should.

[Vanessa Lee (vanessax)]

In what order should I uninstall ffmpeg and MLT? because I had a really hard time getting all that installed in the first place and I had to install Openshot's MLT from the Debian packages because its MLT ffmpeg would cause Totem and other players to fail.

I attached a screenshot of what I have installed according to Synaptic, but note that I am running Jaunty 9.04 (not Karmic, and some of the packages seem to be for Karmie, is that the prob)?

-Sandra

--- On Sat, 1/2/10, Andy Finch <email address hidden> wrote:

> So it seems there is something wrong
> with your MLT installation - maybe
> it's related to the fact you have 2 different versions of
> ffmpeg. You
> might want to try and clean up your ffmpeg installs and see
> if that
> helps, but without a working MLT, you wont get Openshot
> working as it
> should.
>
> --
> Slow playback
> https://bugs.launchpad.net/bugs/492701
> You received this bug notification because you are a direct
> subscriber
> of the bug.
>
> Status in OpenShot Video Editor: New
>
> Bug description:
> I installed openshot-mlt 0.9.54 from the Debian packages on
> 64 bit AMD Jaunty 9.04.
>
> If I preview or play, the playback starts with a normal
> speed playback for about a second and then it starts to
> creep extremely slowly from then on. The audio also starts
> to get glitchy.
>
> This happens when previewing and playback for any video or
> audio, I tried different formats, and they all seem to have
> the exact same behavior. Totem plays video normally without
> any problem so I think the problem might be openshot.
>
> To unsubscribe from this bug, go to:
> https://bugs.launchpad.net/openshot/+bug/492701/+subscribe
>

[Vanessa Lee (vanessax)]

I found something listed in Synaptic:

The openshot-ffmpeg git-2623d8f-1 package has /usr/local/bin/ffmpeg while the ffmpeg 3:0.svn20090303-1 package has /usr/bin/ffmpeg installed.

Should I try uninstalling one of them?

I also have a mlt-python and a python-mlt package installed. The python-mlt package is for Karmic but this is on a Jaunty system, I think it was because Openshot needed the python-mlt package, is that correct? Or should I uninstall one of them?

[Andy Finch (fincha)]

Have you got the Karmic only PPA enabled (as you seem to have got the PPA packages installed)? If you have got that installed over the top of a previous installation via the .debs then that may well cause a problem.

You could try removing the PPA installation and then try running Openshot again, or you may even need to remove the .deb installed version as well.

It's difficult to say for sure, as I run Openshot in an unusual way - I get the latest branch and run it in my development environment, having previously installed the dependencies (although I can't seem to find any trace of ffmpeg on my system, but it must be there somewhere).

[Vanessa Lee (vanessax)]

I have uninstalled all my MLT packages, and then reinstalled Openshot and it still has the exact same problem but now I have no MLT packages yet it still runs (but with the same slow playback problem).

What exact MLT packages do I need to have installed?

[Andy Finch (fincha)]

You should see libmlt++2 installed, in /usr/lib.

Did you remove the Karmic PPA (and removed it from your software sources), or just MLT?

You should also run this command to see what MLT files are in /usr/lib:

/usr/lib$ ls -la libmlt*

[Vanessa Lee (vanessax)]

Yes, I removed both the Karmic PPA and the MLT PPA.

I also uninstalled all the MLT related stuff and redownloaded all the debian packages for openshot-mlt again.

I reinstalled:

openshot.deb
openshot-ffmpeg_git-2623d8f-1_amd64.deb
openshot-frei0r_1.1.22-1_amd64.deb
openshot-mlt_0.4.3-1_amd64.deb
openshot-x264_0.67.1173-1_amd64.deb

I still have the exact same slow playback/stuttering problem.

Here is some additional info after the reinstall:

[code]
user@zareason-limbo:~$ cd /usr/lib
user@zareason-limbo:/usr/lib$ ls -la libmlt*
ls: cannot access libmlt*: No such file or directory
user@zareason-limbo:/usr/lib$ cd /usr/local/lib
user@zareason-limbo:/usr/local/lib$ ls -la libmlt*
lrwxrwxrwx 1 user user 15 2010-01-06 21:56 libmlt.so -> libmlt.so.0.4.5
lrwxrwxrwx 1 user user 17 2010-01-06 21:56 libmlt++.so -> libmlt++.so.0.4.5
-rwxr-xr-x 1 user user 144432 2009-07-19 23:14 libmlt.so.0.4.5
-rwxr-xr-x 1 user user 136352 2009-07-19 23:14 libmlt++.so.0.4.5
lrwxrwxrwx 1 user user 15 2010-01-06 21:56 libmlt.so.2 -> libmlt.so.0.4.5
lrwxrwxrwx 1 user user 17 2010-01-06 21:56 libmlt++.so.2 -> libmlt++.so.0.4.5
[/code]

[Andy Finch (fincha)]

This is proving tricky!

What you have got listed under /usr/lib looks very similar to me (I run Jaunty).

The only other thing I can think of to try is uninstall the openshot .deb files and the openshot dependencies .debs again. Then before you reinstall, check that the following files do not exist anywhere on your computer: If they do, remove them.

1) mlt.py
2) _mlt.so
3) mlt_wrap.o

Then re-install from the .debs again.

[Vanessa Lee (vanessax)]

I'm still getting the same exact problem.

I uninstalled everything Openshot and MLT, verified that it was all uninstalled, double checked that mlt.py, _mlt.so, and mlt_wrap.o did not exist anywhere, they do not, then I reinstalled everything from the .debs for Jaunty from the Openshot web site, same exact problem.

I'm so frustrated because Openshot looks so wonterful but I can't get simple playback or preview to work without slow stuttering.

Do you think it might be a pulseaudio sound server issue? if so, is there anything I can do/check?

[Jonathan Thomas (jonoomph)]

It could definitely be a pulseaudio issue, or some strange SDL video issue.
At this point, since you are running Karmic, I would suggest installing from
our newest PPA, and using the distro's own ffmpeg, x264, and mlt packages.
Best of luck!

On Fri, Jan 8, 2010 at 6:59 PM, SandraLAVixen <email address hidden>wrote:

> I'm still getting the same exact problem.
>
> I uninstalled everything Openshot and MLT, verified that it was all
> uninstalled, double checked that mlt.py, _mlt.so, and mlt_wrap.o did not
> exist anywhere, they do not, then I reinstalled everything from the
> .debs for Jaunty from the Openshot web site, same exact problem.
>
> I'm so frustrated because Openshot looks so wonterful but I can't get
> simple playback or preview to work without slow stuttering.
>
> Do you think it might be a pulseaudio sound server issue? if so, is
> there anything I can do/check?
>
> --
> Slow playback
> https://bugs.launchpad.net/bugs/492701
> You received this bug notification because you are a member of OpenShot
> Developers, which is subscribed to OpenShot Video Editor.
>
> Status in OpenShot Video Editor: New
>
> Bug description:
> I installed openshot-mlt 0.9.54 from the Debian packages on 64 bit AMD
> Jaunty 9.04.
>
> If I preview or play, the playback starts with a normal speed playback for
> about a second and then it starts to creep extremely slowly from then on.
> The audio also starts to get glitchy.
>
> This happens when previewing and playback for any video or audio, I tried
> different formats, and they all seem to have the exact same behavior. Totem
> plays video normally without any problem so I think the problem might be
> openshot.
>
>
>
> _______________________________________________
> Mailing list: https://launchpad.net/~openshot.developers<https://launchpad.net/%7Eopenshot.developers>
> Post to : <email address hidden>
> Unsubscribe : https://launchpad.net/~openshot.developers<https://launchpad.net/%7Eopenshot.developers>
> More help : https://help.launchpad.net/ListHelp
>

[Vanessa Lee (vanessax)]

Actually I'm still running 9.04 Jaunty. which is why I downloaded the Debian packages and not used Synaptic.

[Andy Finch (fincha)]

You may want to try following the instructions posted here (specificially Part A), to ensure PulseAudio is configured properly:

http://ubuntuforums.org/showthread.php?t=789578

I saw this on the Kdenlive forums, where some users were having similar choppy playback/audio gliches.

[Vanessa Lee (vanessax)]

I tried that and also spent the evening throughly reinstalling pulseaudio and cleaning it up, afterwards Openshot still has the same exact slow playback problem and every other application that plays video has no problem other than melt.

It seems to be entirely an MLT problem.

[Vanessa Lee (vanessax)]

I just installed Openshot 1.0.0 (completely removed older versions of Openshot first) for Jaunty 9.04 AMD 64 bit and the same exact slow playback and stuttering occuers.

Plus there is now a new problem, when I exit Openshot, the main window closes but it is still running as a process, I have to kill to manually.

user@zareason-limbo:~$ openshot
Added /usr/share/openshot to system path
--------------------------------
   OpenShot (version 1.0.0)
--------------------------------
/usr/share/openshot/windows/SimpleGladeApp.py:340: GtkWarning: gtk_toolbar_set_icon_size: assertion `icon_size != GTK_ICON_SIZE_INVALID' failed
  return gtk.glade.XML(self.glade_path, root, domain)
A new frmMain has been created
on_mnuNewProject_activate called with self.mnuNewProject
init
A new frmNewProject has been created
on_cmbProjectType_changed called with self.cmbProjectType
on_frmNewProject_response called with self.frmNewProject
on_btnCreateProject_clicked called with self.btnCreateProject1
project saved! - Default
on_frmNewProject_destroy called with self.frmNewProject
on_mnuImportFiles_activate called with self.mnuImportFiles
on_mnuPreview_activate
on_tlbPlay_clicked called with self.tlbPlay
on_tlbPlay_clicked called with self.tlbPlay
on_mnuSaveProject_activate called with self.mnuSaveProject
project saved! - Default
on_mnuQuit1_activate called with self.mnuQuit
on_frmMain_destroy
Terminated

[moimael (moimael)]

Does it still append with the new 1.1.2 release ?

[Vanessa Lee (vanessax)]

I'm using Openshot 1.1.1 now but it still has the same stuttering problem, it's probably MLT-based as I'm told and I'm waiting for them to fix that.

I don't think there is an Openshot 1.1.2 yet, is there?

[Olivier Girard (eolinwen)]

Yes, she is go out. This is the last version of the series 1.1.x. I'm thinking that 's she is already available on the PPA.

[Vanessa Lee (vanessax)]

I just tried Openshot 1.1.3, it still has the same problem.

[Olivier Girard (eolinwen)]

i must go back but do that : https://answers.launchpad.net/openshot/+faq/983

[Vanessa Lee (vanessax)]

Yeah I used that FAQ for all 3 versions.

ffplay works, plays any video or audio file I have.

melt exhibits the same problem no matter what video or audio file I used.

The same problem being slow playback and stuttering.

[Andy Finch (fincha)]

In that case we'll tag it for the MLT developers to look at. Could you include your version of libmlt here?

[Vanessa Lee (vanessax)]

MLT melt 0.4.5

openshot-mlt 0.4.3-1 (now)

[Andy Finch (fincha)]

Invalid - old bug report, outdated versions of MLT/Openshot.