ref: 968a5d6bc2c54c8ec8e01572009abfe0a1f3b5c1 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