https://bugzilla.gnome.org/show_bug.cgi?id=740753
Daniel van Vugt <daniel.van.vugt at canonical.com> changed:
What |Removed |Added
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CC| |daniel.van.vugt at canonical.c
| |om
--- Comment #3 from Daniel van Vugt <daniel.van.vugt at canonical.com> ---
I'm looking at this bug at the moment, although if someone could beat me to a
fix that would be excellent.
It appears there are two initial problems:
1. The EGL texture upload code path is not used (at least not with the clutter
video sink) because vaapipostproc deletes that cap:
if ((GST_VAAPI_PLUGIN_BASE_SRC_PAD_CAN_DMABUF (postproc)
|| !gst_vaapi_display_has_opengl (GST_VAAPI_PLUGIN_BASE_DISPLAY
(postproc)))
&& gl_upload_meta_idx > -1) {
gst_caps_remove_structure (caps, gl_upload_meta_idx);
}
2. create_objects (GstVaapiTextureEGL * texture, GLuint texture_id) fails in a
couple of places with EGL_BAD_PARAMETER. This seems to be because the
texture_id is from the downstream GL context (the thread that's doing the
upload), and gstreamer-vaapi is using some other completely wrong GL context.
So EGL reports EGL_BAD_PARAMETER because texture_id is not valid for the
context we're trying to use.
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