proc postproc_configuration(): cstring {.importc, cdecl, ...raises: [], tags: [],
    forbids: [].}

proc postproc_license(): cstring {.importc, cdecl, ...raises: [], tags: [],
                                   forbids: [].}

proc postproc_version(): cuint {.importc, cdecl, ...raises: [], tags: [],
                                 forbids: [].}

proc pp_free_context(ppContext: ptr pp_context) {.importc, cdecl, ...raises: [],
    tags: [], forbids: [].}

proc pp_get_mode_by_name_and_quality(width, height, flags: cint): ptr pp_context {.
    importc, cdecl, ...raises: [], tags: [], forbids: [].}

proc pp_postprocess(src: ptr ptr uint8; srcStride: ptr cint; dst: ptr ptr uint8;
                    dstStride: ptr cint; horizontalSize, verticalSize: cint;
                    QP_store: ptr int8; QP_stride: cint; mode: ptr pp_mode;
                    ppContext: ptr pp_context; pict_type: cint) {.importc,
    cdecl, ...raises: [], tags: [], forbids: [].}