gstreamer/gst-libs
He Junyan dfc730165c libs: encoder: H265: Add screen content coding extensions support.
In scc mode, the I frame can ref to itself and it needs the L0 reference
list enabled. So we should set the I frame to P_SLICE type. We do not need
to change the ref_pic_list0/1 passed to VA driver, just need to enable the
VAEncPictureParameterBufferHEVC->pps_curr_pic_ref_enabled_flag to notify
the driver consider the current frame as reference. For bits conformance,
the NumRpsCurrTempList0 should be incremented by one to include the current
picture as the reference frame. We manually do it when packing the slice header.

Command line like:
gst-launch-1.0  videotestsrc num-buffers=10 ! \
capsfilter caps=video/x-raw,format=NV12, framerate=30/1,width=640,height=360 ! \
vaapih265enc ! capsfilter caps=video/x-h265,profile="{ (string)screen-extended-main }" ! \
filesink location=out.265
Can be used to specify that the encoder should use SCC profiles.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer-vaapi/-/merge_requests/379>
2020-12-06 23:37:56 +08:00
..
gst libs: encoder: H265: Add screen content coding extensions support. 2020-12-06 23:37:56 +08:00
meson.build vaapi: add meson build 2017-02-09 11:27:44 +01:00