[gst-devel] possible glimagesink bug - not thread safe?

[Julien Isorce]

Hi,

Right now I can't test your exact example on linux I guess ?

But I have tested this one on Windows with no problems:

--------------------------------
import gobject
import pygst
pygst.require("0.10")
print dir(pygst)
import gst

players = []
for i in range(10):
    players.append(gst.parse_launch("videotestsrc ! glimagesink"))

for player in players:
    player.set_state(gst.STATE_PLAYING)

gobject.MainLoop().run()
--------------------------------

What's the exact version of your gstreamer (core/base/gl/python) ? Are you
building it from git or ?

Julien


2010/7/24 Aulia Khamil <selazer at gmail.com>

> Hello,
>
> Consider following Python code, which creates four simple pipelines at
> the same time:
>
> import wx
> import pygst
> pygst.require("0.10")
> import gst
>
> players = []
> for i in range(4):
>    players.append(gst.parse_launch("videotestsrc ! glimagesink"))
>
> for player in players:
>    player.set_state(gst.STATE_PLAYING)
>
> app = wx.App(redirect=False)
> frame = wx.Frame(None)
> frame.Show()
> app.MainLoop()
>
> This code crashes a lot with various errors:
> - 0xc0000005 exceptions
> - fatal flex scanner internal error--end of buffer missed
> - (python.exe:2788): GstGLShader-WARNING **: Fragment Shader
> compilation failed: ERROR: 0:1: 'float' : syntax error parse error
>
> Sometimes, however, it runs OK.
>
> To me it looks like some bug in glimagesink having something to do
> with thread safety. Anyone have any ideas what might be the cause of
> this strange behaviour and how to get rid of it?
>
> Regards,
> Aulia Khamil
>
>
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