[Kdenlive-devel] [Mlt-devel] Bug#677276: kdenlive: Rendering to file works, Rendering by a script not.

[Dan Dennedy]

On Thu, Jul 12, 2012 at 9:09 PM, Dan Dennedy <dan at dennedy.org> wrote:
> On Thu, Jul 12, 2012 at 1:17 PM, Patrick Matthäi <pmatthaei at debian.org> wrote:
>> @Vincent:
>>
>> Does it also work for you, if you remove the "file://" prefix JUST in
>> the SOURCE variable of the .sh script?
>>
>> Looks like melt does not handle it prop. anymore, with the TARGET prefix
>> file:// everything is okay.
>
> Melt does not and never has accepted a "file://" prefix on a MLT XML
> file. File specifications being sent to the avformat plugin accept a
> file:// prefix because libavformat does and because it is the default
> plugin. This is not a regression as far as I know, and I have no plans
> to accommodate it. I just tested v0.7.8 and v0.7.0, and it does not
> accept it either.

With that said, since I almost had a working patch by the end of
debugging to verify my claims, I went ahead and finished off a small
commit to MLT to handle a "file://" on a MLT XML file specification:

https://github.com/mltframework/mlt/commit/bb3afe8051067b4e688a59b4d5f2a3425b13410f

> How did "file://" get added into the script? Kdenlive generates the
> script, but it might be a side effect of some API it is using. Looks
> like on June 20, kdenlive switched from KUrl::url() to
> QUrl::toEncoded(). Not sure if that is the problem.
>
>> Am 12.07.2012 20:00, schrieb Patrick Matthäi:
>>> Hey Dan and Vincent,
>>>
>>> @Vincent:
>>> You are right, with your video(settings) it is also reproduceable on my PC.
>>>
>>> @Dan:
>>> Could you have a look on this issue?
>>> The rendering about the script just finishes within a second and leaves
>>> an empty file.
>>> I tried to reproduce it with some other videos and settings, but they
>>> worked, but not with his generated script.
>>>
>>> Full history:
>>> http://bugs.debian.org/677276
>>>
>>> Thanks!
>>
>> --
>> /*
>> Mit freundlichem Gruß / With kind regards,
>>  Patrick Matthäi
>>  GNU/Linux Debian Developer
>>
>> E-Mail: pmatthaei at debian.org
>>         patrick at linux-dev.org
>> */
>>