[Bug 783803] encoder: h264(AVC): Add multi reference support
GStreamer (GNOME Bugzilla)
bugzilla at gnome.org
Tue Jul 18 07:49:43 UTC 2017
https://bugzilla.gnome.org/show_bug.cgi?id=783803
Hyunjun Ko <zzoon at igalia.com> changed:
What |Removed |Added
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CC| |zzoon at igalia.com
--- Comment #1 from Hyunjun Ko <zzoon at igalia.com> ---
@Sree, I have one question.
If one property is provided for number of reference frames to be set,
How do I decide the number of reference frames for picture list 0 and list 1?
Currently query results in 8 for list0 and 2 for list1, which means that if
b-frame is encoded, we can add one or two reference frames to the pic list1.
Possible options I think so far are
1\ the value of the propery is considered as the number of picture list0.
and add 1 reference frame more if b-frame encoding.
2\ Bit operation can be used just like the value of the query
VAConfigAttribEncMaxRefFrames the driver.
3\ Follow the libva-utils example. But I doubt if it's correct.
If there's something I misunderstand, please let me know.
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