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[399/906] glmixer: fix when no more gl elements after it

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For example:
videotestsrc ! glupload ! ... ! glfiter ! ... ! glmosaic ! fakesink
Usefull when using glmixer inside cluttershare or sdlshare cases.
This commit is contained in:
Julien Isorce 2009-11-04 23:44:46 +01:00 committed by Tim-Philipp Müller
parent f93bb87e77
commit f23b6144d5
1 changed files with 18 additions and 7 deletions
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21
gst-libs/gst/gl/gstglmixer.c
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@ -597,12 +597,22 @@ gst_gl_mixer_query (GstPad * pad, GstQuery * query)
gst_structure_get_name (structure)) == 0;
if (!res) {
/* id_value is set by upstream element of itself when going to paused state */
GstGLDisplay *foreign_display = NULL;
gulong foreign_gl_context = 0;
if (mix->display) {
/* this gl filter is a sink in terms of the gl chain */
foreign_display = mix->display;
} else {
/* at least one gl element is after in our gl chain */
/* id_value is set by upstream element of itself when going
* to paused state */
const GValue *id_value =
gst_structure_get_value (structure, "gstgldisplay");
GstGLDisplay *foreign_display =
GST_GL_DISPLAY (g_value_get_pointer (id_value));
gulong foreign_gl_context =
foreign_display = GST_GL_DISPLAY (g_value_get_pointer (id_value));
}
foreign_gl_context =
gst_gl_display_get_internal_gl_context (foreign_display);
/* iterate on each sink pad until reaching the gl element
@ -1230,11 +1240,12 @@ gst_gl_mixer_change_state (GstElement * element, GstStateChange transition)
/* at least one gl element is after in our gl chain */
mix->display =
g_object_ref (GST_GL_DISPLAY (g_value_get_pointer (id_value)));
else
else {
/* this gl filter is a sink in terms of the gl chain */
mix->display = gst_gl_display_new ();
gst_gl_display_create_context (mix->display, 0);
}
}
gst_query_unref (query);
gst_object_unref (GST_OBJECT (parent));