[Kdenlive-devel] Feature for kdenlive....

Wed Jul 2 04:20:56 UTC 2014

I have a little script that I run that just uses melt on the command
line to stabilize the video for me, so I am in no great rush.

If you want to take a look at the results:
http://www.youtube.com/evorster

It does not look like the git has changed heads to "next" yet. If you
give me the source files, I can certainly test it on my system.
Thanks in advance!

-Evert Vorster-

On 2 July 2014 06:14, Steve Guilford <s.guilford at dbplugins.com> wrote:
> Evert,
>
> I made the changes but am awaiting dev-access in order to push up my
> changes.  I can not test due to the fact that both of the existing
> stabilizers crash on my machine.  The new one crashes too :-)
>
> But, if the pattern used to implement the existing two stabilizers is
> the same for the new one then I think I have it sorted out.  I'll need
> you to test it for me.
>
> If you want I can attach the two source files if you are anxious and
> don't want to wait.
>
> Steve...>>>
>
> On 06/30/2014 11:12 PM, Evert Vorster wrote:
>> I have never used that script.
>>
>> http://quickgit.kde.org/?p=kdenlive.git
>>
>> On there, is an http view of the git repo.
>> Towards the bottom, there are different heads than the master.
>> I clicked on "next" and then downloaded the latest snapshot.
>>
>> Extracted it, compiled & installed it
>>
>> However, if you wait a little while, master will change into "next" as
>> that is more stable.
>> The current master will then become something else, where most of the
>> big feature adds is happening.
>>
>> -Evert-
>>
>> On 1 July 2014 07:58, Steve Guilford <s.guilford at dbplugins.com> wrote:
>>> Where did you get the 'next' tree?  I'm using the build-kdenlive script
>>> from the MLT site.  Doesn't that get the most recent source?
>>>
>>> On 06/30/2014 10:56 PM, Evert Vorster wrote:
>>>> Hmm, I am using the "next" tree, and that does not have movit. All the
>>>> stabilizers in there works as advertised.
>>>>
>>>> However, .mlt files do make kdenlive incredibly unstable.
>>>>
>>>>
>>>> -Evert-
>>>>
>>>> On 1 July 2014 07:44, Steve Guilford <s.guilford at dbplugins.com> wrote:
>>>>> I looked into this and it's not very hard to do.  I took a pass at it
>>>>> and got it added to the menu and had the UI created.
>>>>>
>>>>> Unfortunately, the stabilize process crashes (SIGSEV) as soon as you
>>>>> start the job.  So, I made sure I had a current pull from the dev-tree.
>>>>> Same result.
>>>>>
>>>>> The error is the same for all three stabilization filters.
>>>>>
>>>>> The error is in libGL, triggered by movit:
>>>>>
>>>>> #0 glGenTextures() at /usr/lib/nvidia-331/libGL.so.1
>>>>> #1
>>>>> movit::SingleResamplePassEffect::SingleResamplePassEffect(movit::ResampleEffect*)()
>>>>> at /storage/kdenlive_9.8/20140630/lib/libmovit.so.2
>>>>> #2 movit::ResampleEffect::ResampleEffect()() at
>>>>> /storage/kdenlive_9.8/20140630/lib/libmovit.so.2
>>>>> #3 OptionalEffect<movit::ResampleEffect>::OptionalEffect() at
>>>>> /storage/kdenlive_9.8/src/mlt/src/modules/opengl/optional_effect.h:13
>>>>> #4 get_image() at
>>>>> /storage/kdenlive_9.8/src/mlt/src/modules/opengl/filter_movit_resample.cpp:82
>>>>> #5 mlt_frame_get_image() at
>>>>> /storage/kdenlive_9.8/src/mlt/src/framework/mlt_frame.c:581
>>>>> #6 get_image() at
>>>>> /storage/kdenlive_9.8/src/mlt/src/modules/opengl/filter_movit_resize.cpp:146
>>>>> #7 mlt_frame_get_image() at
>>>>> /storage/kdenlive_9.8/src/mlt/src/framework/mlt_frame.c:581
>>>>> #8 filter_get_image() at
>>>>> /storage/kdenlive_9.8/src/mlt/src/modules/videostab/filter_videostab2.c:122
>>>>> #9 mlt_frame_get_image() at
>>>>> /storage/kdenlive_9.8/src/mlt/src/framework/mlt_frame.c:581
>>>>> #10 producer_get_image() at
>>>>> /storage/kdenlive_9.8/src/mlt/src/framework/mlt_tractor.c:273
>>>>> #11 mlt_frame_get_image() at
>>>>> /storage/kdenlive_9.8/src/mlt/src/framework/mlt_frame.c:581
>>>>> #12 consumer_read_ahead_thread() at
>>>>> /storage/kdenlive_9.8/src/mlt/src/framework/mlt_consumer.c:782
>>>>>
>>>>> Do any of the stabilization filters work for you?
>>>>>
>>>>> I have an older source tree (0.9.7) that stabilizes correctly.
>>>>>
>>>>> That libGL.so.1 library may be from a vendor-distribution driver, not
>>>>> the Ubuntu distro version - that could also be an issue.
>>>>>
>>>>> If you can stabilize w/out problem then I can post up the mods and you
>>>>> can test.
>>>>>
>>>>> Let me know....>>>
>>>>>
>>>>> On 06/30/2014 03:39 PM, Evert Vorster wrote:
>>>>>> Hi there, everybody.
>>>>>>
>>>>>> I _know_ that there is a lot going on with the code, and that we don't
>>>>>> have a load of developers.
>>>>>>
>>>>>> However, I have to tell you that the newer vid.stab filter in mlt is
>>>>>> absolutely amazing!
>>>>>>
>>>>>> To add it into mlt is not a big hassle.
>>>>>> Get the source code for vid.stab library here:
>>>>>> https://github.com/georgmartius/vid.stab/tarball/release-0.98b
>>>>>>
>>>>>> Homepage of the project is:
>>>>>> http://public.hronopik.de/vid.stab/features.php?lang=en
>>>>>>
>>>>>> It will become an optional dependency of mlt in the future as it is
>>>>>> already in use for Shotcut, but for now, mlt has to be fetched from
>>>>>> git and built on your machine to utilize this new filter.
>>>>>>
>>>>>> If you are on Arch, I have already made an AUR package for vid.stab,
>>>>>> and mlt-git is already pulling it in automatically. Thanks,
>>>>>> IncredibleLaser!
>>>>>>
>>>>>>
>>>>>> Once built, 'melt -query filters | grep stab' will return three video
>>>>>> stabilization filters:
>>>>>> vidstab
>>>>>> videostab
>>>>>> videostab2
>>>>>>
>>>>>> vidstab is the new one. It's command line options are exactly the same
>>>>>> as videostab2
>>>>>>
>>>>>>
>>>>>> Now, in kdenlive, videostab2 is referred as "transcode"
>>>>>>
>>>>>> If we could duplicate the module in kdenlive that drives videostab2
>>>>>> and call it "vid.stab" and modify it to use the new filter and add it
>>>>>> to the clip jobs menu, that would be awesome!
>>>>>>
>>>>>> In the meantime, I am stabilizing my videos on the command line.
>>>>>>
>>>>>>
>>>>> --
>>>>> Steve Guilford
>>>>> http://www.dbplugins.com
>>>>>
>>>>>
>>>>> ------------------------------------------------------------------------------
>>>>> Open source business process management suite built on Java and Eclipse
>>>>> Turn processes into business applications with Bonita BPM Community Edition
>>>>> Quickly connect people, data, and systems into organized workflows
>>>>> Winner of BOSSIE, CODIE, OW2 and Gartner awards
>>>>> http://p.sf.net/sfu/Bonitasoft
>>>>> _______________________________________________
>>>>> Kdenlive-devel mailing list
>>>>> Kdenlive-devel at lists.sourceforge.net
>>>>> https://lists.sourceforge.net/lists/listinfo/kdenlive-devel
>>>>
>>> --
>>> Steve Guilford
>>> http://www.dbplugins.com
>>>
>>>
>>> ------------------------------------------------------------------------------
>>> Open source business process management suite built on Java and Eclipse
>>> Turn processes into business applications with Bonita BPM Community Edition
>>> Quickly connect people, data, and systems into organized workflows
>>> Winner of BOSSIE, CODIE, OW2 and Gartner awards
>>> http://p.sf.net/sfu/Bonitasoft
>>> _______________________________________________
>>> Kdenlive-devel mailing list
>>> Kdenlive-devel at lists.sourceforge.net
>>> https://lists.sourceforge.net/lists/listinfo/kdenlive-devel
>>
>>
>
> --
> Steve Guilford
> http://www.dbplugins.com
>
>
> ------------------------------------------------------------------------------
> Open source business process management suite built on Java and Eclipse
> Turn processes into business applications with Bonita BPM Community Edition
> Quickly connect people, data, and systems into organized workflows
> Winner of BOSSIE, CODIE, OW2 and Gartner awards
> http://p.sf.net/sfu/Bonitasoft
> _______________________________________________
> Kdenlive-devel mailing list
> Kdenlive-devel at lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/kdenlive-devel

-- 
Evert Vorster
Chief Observer
WG Cook