#612 GEM segfault when loading videos

[hellocatfood]

I've created a very simple video mixer and when I load videos after about 1 minute Pure:Data crashes. Here's the terminal output whilst running Pd

tk scaling is 1.3348876577408433
<init> : Avifile RELEASE-0.7.48-100119-21:44-../src/configure
<init> : Available CPU flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm constant_tsc arch_perfmon pebs bts aperfmperf pni dtes64 monitor
<init> : 1600.00 MHz Pentium(R) Dual-Core CPU T4300 @ 2.10GHz processor detected
<reader> : Checking: /home/hellocatfood/Desktop/Dave plays fetch.flv
[flv @ 0x94bd4b0]Estimating duration from bitrate, this may be inaccurate
<FF reader> : Format:'FLV format' Stream(s):2
<FF reader> : S: 0 flv CodecID:16 bitrate:261292 (4000000) samplerate:0 chn:0 framerate:1/1000 wxh 320x240 0/1
<FF stream> : Starttime:0 Duration:85.251999s
<FF reader> : S: 1 mp3 CodecID:15001 bitrate:8000 (4000000) samplerate:22050 chn:1 framerate:0/1 wxh 0x0 0/1
<FF stream> : Starttime:0 Duration:85.251999s
<reader> : Initialized video stream (chunk tblsz: 2147483647, fmtsz: 40)
<codec keeper> : Found 5 plugins (/usr/lib/avifile-0.7,A:27,V:35)
<FFMPEG video decoder> : looking for flv 0
<codec keeper> : Created video decoder: FF FLV
<FF stream> : Codec tag format
<FF stream> : SeekPos: 0
<ffflv> : using DR1
Diverting av_*_packet function calls to libavcodec. Recompile to improve performance
<FF stream> : SeekPos: 1
pd_gui: pd process exited
Segmentation fault

[hellocatfood]

patch

[IOhannes m zmölnig]

Please provide as detailed information as possible including which operating system (OS), CPU type, specific hardware, and the exact distro and version of Pd itself, etc.

For example:

Pd version 0.41.4-extended
Mac OS X 10.5.7/Intel
built-in sound

[IOhannes m zmölnig]

do you also get crashes, if you:
- use the standalone player for libavifile called "aviplay"
on debian this comes in the avifile-player package
(in this case the problem is most likely with your version of libavifile; please file a bug-report at their tracker)

- only load Gem at startup
the simplest way to test this is to start a console and run: "pd -noprefs -lib Gem"
(if this doesn't crash, then we have a conflict with other libraries; try to find out which)

- compile Gem yourself (grab it from http://gem.iem.at\)
(if this still crashes, please file a bug-report in the gem bug-tracker; you can find the URL in Gem's splash-screen)

[hellocatfood]

I'm using PD 0.42.5 extended on Ubuntu 10.10. Computer specs: Dell Studio 1555: Pentium Dual Core T4300(2.1GHz,800MHz,1MB), 4096MB 800MHz DDR2 Dual Channel, 512 MB ATI Mobility RADEON HD 4570

II tried playing through aviplay and whilst the file still plays I still get the error: "[mp2 @ 0x8e4caa0]incorrect frame size
Diverting av_*_packet function calls to libavcodec. Recompile to improve performance"

Thanks for the advice. Will try using the version that comes with Ubuntu and report back

[Hans-Christoph Steiner]

Is this still an issue?