[Bug 747495] gst_base_text_overlay_push_frame() doesn't make memory copy when video buffer's memory is ready only

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=747495

Tim-Philipp Müller <t.i.m at zen.co.uk> changed:

           What    |Removed                     |Added
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   Target Milestone|git master                  |NONE

--- Comment #3 from Tim-Philipp Müller <t.i.m at zen.co.uk> ---
If the frame can't be modified, the memory should automatically be copied when
mapping with MAP_READWRITE.

I'm not sure what's happening here, but it sounds like a bug elsewhere.

Perhaps you could you make a minimal unit test that demonstrates the issue?

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