proc av_bmg_get(lfg: ptr AVLFG; out: ptr cdouble) {.importc, cdecl, ...raises: [],
    tags: [], forbids: [].}

proc av_lfg_get(c: ptr AVLFG): cuint {.inline, importc, cdecl, ...raises: [],
                                       tags: [], forbids: [].}

proc av_lfg_init(c: ptr AVLFG; seed: cuint) {.importc, cdecl, ...raises: [],
    tags: [], forbids: [].}

proc av_lfg_init_from_data(c: ptr AVLFG; data: ptr uint8; length: cuint): cint {.
    importc, cdecl, ...raises: [], tags: [], forbids: [].}