proc av_dv_codec_profile(width, height: cint; pix_fmt: AVPixelFormat): ptr AVDVProfile {.
    importc, cdecl, ...raises: [], tags: [], forbids: [].}

proc av_dv_codec_profile2(width, height: cint; pix_fmt: AVPixelFormat;
                          frame_rate: AVRational): ptr AVDVProfile {.importc,
    cdecl, ...raises: [], tags: [], forbids: [].}

proc av_dv_frame_profile(sys: ptr AVDVProfile; frame: ptr uint8; buf_size: cuint): ptr AVDVProfile {.
    importc, cdecl, ...raises: [], tags: [], forbids: [].}