proc av_codec_is_decoder(codec: ptr AVCodec): cint {.importc, cdecl, ...raises: [],
    tags: [], forbids: [].}

proc av_codec_is_encoder(codec: ptr AVCodec): cint {.importc, cdecl, ...raises: [],
    tags: [], forbids: [].}

proc av_codec_iterate(opaque: ptr pointer): ptr AVCodec {.importc, cdecl,
    ...raises: [], tags: [], forbids: [].}

proc av_get_profile_name(codec: ptr AVCodec; profile: cint): ptr cchar {.
    importc, cdecl, ...raises: [], tags: [], forbids: [].}

proc avcodec_find_decoder(id: AVCodecID): ptr AVCodec {.importc, cdecl,
    ...raises: [], tags: [], forbids: [].}

proc avcodec_find_decoder_by_name(name: cstring): ptr AVCodec {.importc, cdecl,
    ...raises: [], tags: [], forbids: [].}

proc avcodec_find_encoder(id: AVCodecID): ptr AVCodec {.importc, cdecl,
    ...raises: [], tags: [], forbids: [].}

proc avcodec_find_encoder_by_name(name: cstring): ptr AVCodec {.importc, cdecl,
    ...raises: [], tags: [], forbids: [].}

proc avcodec_get_hw_config(codec: ptr AVCodec; index: cint): ptr AVCodecHWConfig {.
    importc, cdecl, ...raises: [], tags: [], forbids: [].}