ref: ec4afbf74a4beebadee3e1b15b43c5d4e3d3bd1c dir: /vpx/exports_spatial_svc/
text vpx_svc_dump_statistics text vpx_svc_encode text vpx_svc_get_message text vpx_svc_init text vpx_svc_release text vpx_svc_set_options