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qmlglsink: check qt_context_ first in GstQSGTexture::bind()

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When start qmlglsink app, it will set NULL buffer to GstQSGTexture
in which case that qt_context_ will be a random value and cause
gst_gl_context_activate() fail.

https://bugzilla.gnome.org/show_bug.cgi?id=770925
This commit is contained in:
Haihua Hu 2016-09-06 13:13:39 +08:00 committed by Matthew Waters
parent f3b0b22c48
commit f15a3e3657
1 changed files with 4 additions and 0 deletions
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4
ext/qt/gstqsgtexture.cc
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@ -45,6 +45,7 @@ GstQSGTexture::GstQSGTexture ()
gst_video_info_init (&this->v_info); gst_video_info_init (&this->v_info);
this->buffer_ = NULL; this->buffer_ = NULL;
this->qt_context_ = NULL;
this->sync_buffer_ = gst_buffer_new (); this->sync_buffer_ = gst_buffer_new ();
} }
@ -87,6 +88,9 @@ GstQSGTexture::bind ()
GstMemory *mem; GstMemory *mem;
guint tex_id; guint tex_id;
if (!this->qt_context_)
return;
gst_gl_context_activate (this->qt_context_, TRUE); gst_gl_context_activate (this->qt_context_, TRUE);
if (!this->buffer_) if (!this->buffer_)