ref: 17a8cf5cc3659b64c5d5cd95cf5c4a9b1d638536 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