Unneeded BLIT operation when target is encoder (ex: vaapih264enc)
Submitted by phi..@..el.com
12.4/gstreamer-vaapi-1.12.4/gst-libs/gst/vaapi/gstvaapifilter.c: pipeline_param->output_background_color = 0xff000000;
force BLIT usage (visible with Vtune or intel_gpu_top) - or this is only needed when target is Display... useless when target is encoder (where Alpha is ignored)
This cause extra HW resource usage that can be prevented as this operation is not needed in encoder cases
Can we make this output_background_color configurable (or skip this operation in encode pipeline) ?