kdenlive fails to start

[macports@…]

running open kdenlive from terminal does not give any output, from xterm:

/Applications/MacPorts/KDE4/kdenlive.app/Contents/MacOS/kdenlive 
kdenlive(887)/KSharedDataCache ensureFileAllocated: This system misses support for posix_fallocate() -- ensure this partition has room for at least 10547296 bytes. 
Unable to start Dr. Konqi

gdb gives:

Program received signal EXC_BAD_ACCESS, Could not access memory.
Reason: KERN_INVALID_ADDRESS at address: 0x0000000006806e04
0x000000011f498645 in gavl_video_options_set_defaults ()

System:
MacBook Pro
OSX 10.8.4
XQuartz 2.7.4

This is fresh install of macports, the only port installed is kdenlive.

[larryv (Lawrence Velázquez)]

Thanks. In the future, please Cc relevant port maintainers.

[ddennedy (Dan Dennedy)]

This appears to be a bug in gavl or the way frei0r is compiled against gavl. A frei0r plugin is calling gavl_video_scaler_create(), which takes no options, and this function calls gavl_video_options_set_defaults() where it is crashing.

3 frei0r plugins (out of many) use gavl, and only one of those is used by Kdenlive, but it is not essential. I can change frei0r-plugins to make it not dependent upon gavl, but currently its configure script will enable gavl plugins if gavl is installed. I have to make a patch to properly/fully enable/disable the gavl dependency.

In the meantime, you can work around the problem by simply forcing to uninstall gavl if you have not installed anything else that needs it: sudo port uninstall -f gavl. 'port dependents gavl' will tell you what other packages are using gavl. This works OK because only 1 frei0r plugin will fail to load in Kdenlive due to the missing gavl dependency: Crop, Scale and Position. But there are also Crop and Pan and Zoom effects in Kdenlive that do not use this plugin.

[ddennedy (Dan Dennedy)]

patches configure.ac to remove gavl dependency

[ddennedy (Dan Dennedy)]

patches frei0r-plugins Portfile to remove gavl dependency

[ddennedy (Dan Dennedy)]

I have made some patches to frei0r-plugins port to remove the gavl dependency and add a cairo dependency. I chose not to make gavl a variant for the same reason opencv is not a dependency. The frei0r plugins that need them are not that interesting, and these dependencies have caused stability issues. I do not want to invite people to build frei0r-plugins with gavl variant only to have it crash and get another bug report! The somewhat new version 1.4 of frei0r includes new cairo-based plugins, but I forgot to add that when upgrading the Portfile. Cairo is already an indirect dependency of kdenlive (via kde4-runtime), and I tested they work on MacPorts (at least for me for now).

[vincent.mcintyre@…]

I hit this too on 10.8.4 with kdenlive-0.9.6 and gavl-1.2.0_1.

% gdb /Applications/MacPorts/KDE4/kdenlive.app/Contents/MacOS/kdenlive
(gdb) run
...
Program received signal EXC_BAD_ACCESS, Could not access memory.
Reason: KERN_INVALID_ADDRESS at address: 0x0000000004034004
0x000000011ed45ea5 in gavl_video_options_set_defaults ()
(gdb) bt
#0  0x000000011ed45ea5 in gavl_video_options_set_defaults ()
#1  0x000000011ed37cf7 in gavl_video_scaler_create ()
#2  0x000000010c30ec89 in fill_param_info ()
#3  0x00000001027ebc10 in mlt_repository_metadata ()
#4  0x0000000102816a63 in Mlt::Repository::metadata ()
#5  0x00000001002d0776 in initEffects::parseEffectFile ()
#6  0x00000001002b95b5 in initEffects::parseEffectFiles ()
#7  0x00000001000c04ac in MainWindow::MainWindow ()
#8  0x00000001000bfbb1 in main ()

So I uninstalled gavl

% sudo port list installed |grep gavl
gavl                           @1.2.0          multimedia/gavl
% sudo port uninstall -f gavl
--->  Unable to uninstall gavl @1.2.0_1, the following ports depend on it:
--->  	frei0r-plugins @1.4_0
Warning: Uninstall forced.  Proceeding despite dependencies.
--->  Deactivating gavl @1.2.0_1
--->  Unable to deactivate gavl @1.2.0_1, the following ports depend on it:
--->  	frei0r-plugins @1.4_0
Warning: Deactivate forced.  Proceeding despite dependencies.
--->  Cleaning gavl
--->  Uninstalling gavl @1.2.0_1
--->  Cleaning gavl

and ran again - voila the kdenlive setup window appeared. Thanks Dan!

[mf2k (Frank Schima)]

Replying to vincent.mcintyre@…:

> % sudo port list installed |grep gavl
> gavl                           @1.2.0          multimedia/gavl

Read the FAQ on port list. It does not tell you anything useful here. To see if you have gavl installed, you would run the following command:

port installed gavl

[cooljeanius (Eric Gallager)]

Cc Me!

[bitpup]

Cc Me!

[mkae (Marko Käning)]

Cc Me!

[mkae (Marko Käning)]

Why is this not yet committed? Anything against the patches?

This solves also #41431!

[ddennedy (Dan Dennedy)]

It is not committed because no one who has the commit access has simply not committed it! If there were any objections they would have already been added here. I think it has simply been an oversight. If you have access, then commit please as I do not have commit access.

[mkae (Marko Käning)]

Done in r113609