0002304: Disappearing tracks after rendering when using a title clip and some video effects combined

Notes
(0007285) j-b-m (administrator) 2011-09-08 15:13	Oh, thanks a lot for the sample project file. I could reproduce, and that is a locale issue in the MLT kdenlivetitle producer, so the bug only appears on non english locale. I am working on it. I think that some bugs reported on the forum (disappearing transitions when using an image in a title clip) are also related to that problem.

(0007286) j-b-m (administrator) 2011-09-08 15:42	Patch pending on MLT's mailing list: http://sourceforge.net/mailarchive/forum.php?thread_name=5485724.zoQj8LVuPP%40two&forum_name=mlt-devel [^]

(0007287) fabien26 (reporter) 2011-09-08 17:02	Thanks ! I use the stable release of MLT because I have another bug with 0.7.5. But I will try it as soon as possible !

(0007291) fabien26 (reporter) 2011-09-09 10:10	I have tested with the patch, it's better, but not resolved yet. The tracks are not disappearing after the title clip this time, but before ! The same with a newly created project or with the project I've send before.

(0007292) j-b-m (administrator) 2011-09-09 11:55	A slightly improved version of the patch was committed to MLT, please test latest git. I also see the track disappearing because of the "corner" effect, but this issue should only happen when you try to play a project created in a different locale. To explain a little bit, here is the problem: When using a french locale (as done in your project), your system uses a comma ',' as numeric separator, but when using an english locale, the system uses a dot '.'. It means that the corner parameters looks like that on a french system: <property name="Corner 1 X">0=0,333333</property> When trying to open the project on a system with english locale, the '0,333333' property will not be recognized as a number and will be translated as 0 - which then causes the "black track" problem you are describing. In my tests, this issue only happens when trying to play a project that uses a locale different from the system's locale. The project locale can be seen in the .kdenlive file, on the second line of your attached project file you can see: LC_NUMERIC="fr_FR.UTF-8" which means it was created using a french locale. Now the question is: which locale has the system you are using to play the project file? can you please paste the output of (in a terminal): locale I need to make sure that this problem only happens in the case of project locale != system locale, then I will try to patch it.

(0007293) fabien26 (reporter) 2011-09-09 13:19	I'am already on the latest git (and I checked). Locale report me: LANG=fr_FR.UTF-8 LANGUAGE= LC_CTYPE="fr_FR.UTF-8" LC_NUMERIC="fr_FR.UTF-8" LC_TIME="fr_FR.UTF-8" LC_COLLATE="fr_FR.UTF-8" LC_MONETARY="fr_FR.UTF-8" LC_MESSAGES="fr_FR.UTF-8" LC_PAPER="fr_FR.UTF-8" LC_NAME="fr_FR.UTF-8" LC_ADDRESS="fr_FR.UTF-8" LC_TELEPHONE="fr_FR.UTF-8" LC_MEASUREMENT="fr_FR.UTF-8" LC_IDENTIFICATION="fr_FR.UTF-8" LC_ALL= I'm worried about the: LANGUAGE= 'nothing' but this system seems to work great. I tried to launch kdenlive with LANGUAGE=fr_FR:en and LANGUAGE=fr_FR but the problem remain the same on this computer. I will try on another computer that have LANGUAGE=fr_FR:en by default.

(0007294) j-b-m (administrator) 2011-09-09 13:34	I just committed a fix to Kdenlive so that rendering should work, but I don't understand why it doesn't work for you. I have changed my system's locale to french, I have exactly the same locale output as you and everything works. Just to make sure, can you test in a terminal: melt colour:red -attach brightness:0.5 and melt colour:red -attach brightness:0,5 One of them will give you a black output and the other one a brown output. Which one is the black one (should be first one with your french locale)?

(0007295) fabien26 (reporter) 2011-09-09 13:55	For some unknown reason the black one is the second ... But on the over computer it behave like it should (with mlt 0.7.4). I think I should reinstall my test computer with a clean system ... The last commit in kdenlive doesn't seem to workaround the problem with this silly system. I will try if it works with the over computer. By the way, thank you very much !

(0007296) fabien26 (reporter) 2011-09-09 14:03	It's working great in the over computer, so no problem, bug resolved (except some weird cases)!

Issue History
Date Modified	Username	Field	Change
2011-09-08 13:37	fabien26	New Issue
2011-09-08 13:37	fabien26	File Added: TitleClipMakeTracksDisappear.kdenlive
2011-09-08 15:13	j-b-m	Note Added: 0007285
2011-09-08 15:13	j-b-m	Assigned To	=> j-b-m
2011-09-08 15:13	j-b-m	Status	new => acknowledged
2011-09-08 15:42	j-b-m	Note Added: 0007286
2011-09-08 17:02	fabien26	Note Added: 0007287
2011-09-09 10:10	fabien26	Note Added: 0007291
2011-09-09 11:55	j-b-m	Note Added: 0007292
2011-09-09 13:19	fabien26	Note Added: 0007293
2011-09-09 13:34	j-b-m	Note Added: 0007294
2011-09-09 13:55	fabien26	Note Added: 0007295
2011-09-09 14:03	fabien26	Note Added: 0007296
2011-09-09 20:01	j-b-m	Status	acknowledged => resolved
2011-09-09 20:01	j-b-m	Fixed in Version	=> 0.8.2
2011-09-09 20:01	j-b-m	Resolution	open => fixed
2011-11-01 18:56	j-b-m	Status	resolved => closed

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