[gst-devel] What could cause the error in xvimagesink (XGetWindowAttributes): X Error of failed request?

[Tristan Matthews]

2010/3/2 Tristan Matthews <tristan at sat.qc.ca>

> 2010/3/2 Jan Schmidt <thaytan at noraisin.net>
> Here's my code:
>
> bool handleBusMsg(GstMessage *message)
> {
>  if (!gst_structure_has_name(message->structure, "prepare-xwindow-id"))
>         return false;
>
>     gdk_threads_enter();
>     gst_x_overlay_set_xwindow_id(GST_X_OVERLAY(GST_MESSAGE_SRC(message)),
> getXWindow());
>     gdk_threads_leave();
> }
>
>
I should add, getXWindow() returns the xid which has been provided by
Application A (the destination), and that this code lives in Application B
(the source).



>  Thanks,
>  Tristan
>
> - Jan.
>>
>> On Sat, 2010-02-27 at 17:23 -0800, yiliang wrote:
>> > Hi,
>> >
>> > I have 2 applications. One application (application A) creates a window,
>> and
>> > sends the window ID to another application (application B). application
>> B
>> > has a gstreamer video pipeline that uses xvimagesink to display the
>> video as
>> > overlay in the window using the window ID provided by application A. I
>> am
>> > sorry if it sounds a little confusing. This is to separate UI from
>> pipeline.
>> >
>> > Following function is used to configure xvimagesink with window ID:
>> >
>> >     gst_x_overlay_set_xwindow_id(GST_X_OVERLAY(xvimagesink), winId);
>> >
>> > Most of time it works fine, but sometimes I encounter the following
>> problem,
>> > and the application B is terminated:
>> >
>> > X Error of failed request:  BadWindow (invalid Window parameter)
>> >   Major opcode of failed request:  3 (X_GetWindowAttributes)
>> >   Resource id in failed request:  0x400016f
>> >   Serial number of failed request:  32
>> >   Current serial number in output stream:  33
>> >
>> > After some debugging, I found the error was generated in function
>> > gst_xvimagesink_set_xwindow_id() when it called the following function:
>> >
>> > XGetWindowAttributes
>> >
>> > Could anyone give some hint how to fix this problem?
>> >
>> > Thanks,
>> > Yiliang
>> >
>>
>>
>> --
>> Jan Schmidt <thaytan at noraisin.net>
>>
>>
>>
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>
>
>
> --
> Tristan Matthews
> email: tristan at sat.qc.ca
> web: http://tristanswork.blogspot.com
>



-- 
Tristan Matthews
email: tristan at sat.qc.ca
web: http://tristanswork.blogspot.com
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