openshot.developers team mailing list archive

[Jon Charnas <goeland86@xxxxxxxxxxx>]

Here's the backtrace from gdb when attempting to speed up an avi clip by
twice the speed (audio disabled):

#0  0x00007fffe9739581 in av_find_opt () from /usr/lib/libavcodec.so.52
#1  0x00007fffea4e8920 in ?? () from /usr/lib64/mlt/libmltavformat.so
#2  0x00007fffea4e8ff0 in ?? () from /usr/lib64/mlt/libmltavformat.so
#3  0x00007fffed86cc3f in ?? () from /usr/lib/libmlt.so.2
#4  0x00007fffed86b3e5 in mlt_service_get_frame () from /usr/lib/libmlt.so.2
#5  0x00007fffed86c99c in ?? () from /usr/lib/libmlt.so.2
#6  0x00007fffed86b3e5 in mlt_service_get_frame () from /usr/lib/libmlt.so.2
#7  0x00007fffed86fc37 in ?? () from /usr/lib/libmlt.so.2
#8  0x00007fffed86cc3f in ?? () from /usr/lib/libmlt.so.2
#9  0x00007fffed86b3e5 in mlt_service_get_frame () from /usr/lib/libmlt.so.2
#10 0x00007fffed86d47e in ?? () from /usr/lib/libmlt.so.2
#11 0x00007fffed86cc3f in ?? () from /usr/lib/libmlt.so.2
#12 0x00007fffed86b3e5 in mlt_service_get_frame () from /usr/lib/libmlt.so.2
#13 0x00007fffed86b3e5 in mlt_service_get_frame () from /usr/lib/libmlt.so.2
#14 0x00007fffed871bce in ?? () from /usr/lib/libmlt.so.2
#15 0x00007fffed86b3e5 in mlt_service_get_frame () from /usr/lib/libmlt.so.2
#16 0x00007fffed871fc1 in ?? () from /usr/lib/libmlt.so.2
#17 0x00007fffed86b3e5 in mlt_service_get_frame () from /usr/lib/libmlt.so.2
#18 0x00007fffed871fc1 in ?? () from /usr/lib/libmlt.so.2
#19 0x00007fffed86b3e5 in mlt_service_get_frame () from /usr/lib/libmlt.so.2
#20 0x00007fffed872aa8 in ?? () from /usr/lib/libmlt.so.2
#21 0x00007fffed86cc3f in ?? () from /usr/lib/libmlt.so.2
#22 0x00007fffed86b3e5 in mlt_service_get_frame () from /usr/lib/libmlt.so.2
#23 0x00007fffed86b3e5 in mlt_service_get_frame () from /usr/lib/libmlt.so.2
#24 0x00007fffed870537 in mlt_consumer_get_frame () from /usr/lib/libmlt.so.2
#25 0x00007fffe7283b7c in ?? () from /usr/lib64/mlt/libmltsdl.so
#26 0x00007ffff7826894 in start_thread () from /lib/libpthread.so.0
#27 0x00007ffff6f0ff9d in clone () from /lib/libc.so.6
#28 0x0000000000000000 in ?? ()


So if I'm reading this right it's an mlt problem, not openshot. I recently upgraded to mlt 0.5.2, and openshot 1.1.2, and the problem still exists. I was hoping to find that it had been fixed in the latest code, but clearly not.
My laptop is a dual-core Turion at 2 GHz, 4 GB of ram, and ATI graphics. I'm currently running the opensource radeonhd driver, because of lack of support for Xorg 7.5 from the binary ati drivers. I will switch back to the binary drivers soon, as 10.4 drivers are supposed to have up-to-date kernel and Xorg support.

Also, it is worth noting that playback of 720p files using mplayer or
vlc is perfectly smooth. Not quite sure it's a system resources problem.

-- 
sped up clip crashes openshot during playback
https://bugs.launchpad.net/bugs/551311
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Status in OpenShot Video Editor: New

Bug description:
Using OpenShot 1.1.1 on Gentoo amd64 using ebuild found here: http://bugs.gentoo.org/283673

When changing the playback speed of clips to other than normal and attempting to play a preview of the timeline, openshot crashes when reaching the modified speed clip. Have only tried speeding up yet - can't confirm on slow down.

Changing playback speed property then saving results in being unable to remove or restore playback speed of the clips in question - right click on the clip crashes openshot again.