ref: 4e23998fb4d4d0b1f16c7e2960561bc9a3d7b92a 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