Module Vorbis

module Vorbis: sig .. end

Decode from or encode to the Ogg Vorbis compressed audio format; or get informations about an Ogg Vorbis file.

Author(s): Samuel Mimram, Julien Cristau, David Baelde

Exceptions

exception False

The call returned a 'false' status (eg, ov_bitrate_instant can return OV_FALSE if playback is not in progress, and thus there is no instantaneous bitrate information to report.

exception Invalid_parameters

Some parameters are invalid for this function.

exception Invalid_channels

The given number of channels is invalid.

exception Invalid_argument

Invalid setup request, e.g. out of range argument.

exception Could_not_open_file

The given file could not be opened.

exception Not_vorbis

Bitstream is not Vorbis data.

exception Bad_header

Invalid Vorbis bitstream header.

exception Read_error

A read from media returned an error.

exception Not_audio

Ogg packet doesn't contain audio data

exception Internal_fault

Internal logic fault; indicates a bug or heap/stack corruption.

exception Hole_in_data

Indicates there was an interruption in the data (one of: garbage between pages, loss of sync followed by recapture, or a corrupt page).

exception Bad_link

Indicates that an invalid stream section was supplied, or the requested link is corrupt.

exception Version_mismatch

Invalid Vorbis bitstream header.

exception Not_implemented

Unimplemented mode.

exception Unknown_error of int

An unknown error happened (it should not have happened, please report).

exception Utf8_failure of string

Error while converting utf8.

val string_of_exc : exn -> string option

Return a string representation of an exception

Useful types

type bitstream = int

Index of a logical bitstream. The special value -1 means the physical bitsream.

type info = {

`vorbis_version : int;`	`(*`	version of vorbis codec, must be 0	`*)`
`audio_channels : int;`	`(*`	number of audio channels	`*)`
`audio_samplerate : int;`	`(*`	samplerate in Hertz	`*)`
`bitrate_upper : int;`
`bitrate_nominal : int;`
`bitrate_lower : int;`
`bitrate_window : int;`

}

Vorbis informations about a file.

val tags : (string, string) Stdlib.Hashtbl.t -> unit -> (string * string) list

Create a list of vorbis tags.

Operations with vorbis streams

Encoding

module Encoder: sig .. end

Decoding

module Decoder: sig .. end

Operations with vorbis files

Decoding

module File: sig .. end

module Skeleton: sig .. end