proc av_vorbis_parse_frame(s: ptr AVVorbisParseContext; buf: ptr uint8;
                           buf_size: cint): cint {.importc, cdecl, ...raises: [],
    tags: [], forbids: [].}

proc av_vorbis_parse_frame_flags(s: ptr AVVorbisParseContext; buf: ptr uint8;
                                 buf_size: cint; flags: ptr cint): cint {.
    importc, cdecl, ...raises: [], tags: [], forbids: [].}

proc av_vorbis_parse_free(s: ptr ptr AVVorbisParseContext) {.importc, cdecl,
    ...raises: [], tags: [], forbids: [].}

proc av_vorbis_parse_init(extradata: ptr uint8; extradata_size: cint): ptr AVVorbisParseContext {.
    importc, cdecl, ...raises: [], tags: [], forbids: [].}

proc av_vorbis_parse_reset(s: ptr AVVorbisParseContext) {.importc, cdecl,
    ...raises: [], tags: [], forbids: [].}