[Bug 785712] FEI: Implement VAEntryPointFEI based h264 encoder
GStreamer (GNOME Bugzilla)
bugzilla at gnome.org
Wed Aug 2 01:12:29 UTC 2017
https://bugzilla.gnome.org/show_bug.cgi?id=785712
--- Comment #2 from sreerenj <bsreerenj at gmail.com> ---
Now the more important stuff: How an application can feed input buffers(not the
rawdata buffers, but FEI input buffers) to this new element?
Two applications are implemented in gstreamer-vaapi/test directory:
1: test-fei-enc-out : showcasing how to output MV,MBCode and Distortion
2: test-fei-enc-in: showcasing how to feed MVPredictor, QP, MbContorl buffers
for VME operation
These applications are heavily based on the internal apis in
GST-libs/gst/vaapi, so basically not useful for external standalone
applications.
There is a new fei specific meta: GstVaapiFeiVideoMeta which can be used to
share FEI buffers between FEI/VAAPI elements (we need to add more fei elements
in future eg: a preenc for doing analysis/get_mv/get_distortion on each raw
frame).
Manin concern is how to provide per-frame input control to the application? Do
we really need to provide such control? May be to add signals(half a dozen of
signals) for feeding fei attributes in per frame basis?
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