proc av_get_bits_per_sample(codec_id: AVCodecID): cint {.importc, cdecl,
    ...raises: [], tags: [], forbids: [].}

proc av_get_exact_bits_per_sample(codec_id: AVCodecID): cint {.importc, cdecl,
    ...raises: [], tags: [], forbids: [].}

proc av_get_pcm_codec(fmt: AVSampleFormat; be: cint): AVCodecID {.importc,
    cdecl, ...raises: [], tags: [], forbids: [].}

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

proc avcodec_get_type(codec_id: AVCodecID): AVMediaType {.importc, cdecl,
    ...raises: [], tags: [], forbids: [].}

proc avcodec_profile_name(codec_id: AVCodecID; profile: cint): ptr cchar {.
    importc, cdecl, ...raises: [], tags: [], forbids: [].}