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(*****************************************************************************
Liquidsoap, a programmable audio stream generator.
Copyright 2003-2011 Savonet team
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details, fully stated in the COPYING
file at the root of the liquidsoap distribution.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*****************************************************************************)
(* Video format converters *)
(** Plugin to add video-related configuration keys. *)
val video_converter_conf : Dtools.Conf.ut
(** [~proportional src dst] performs the
* conversion from frame src to frame dst.
* raises Not_found if no conversion routine
* was found *)
type converter = proportional:bool -> Image.Generic.t -> Image.Generic.t -> unit
(** A converter plugin is a name, a list of input formats,
* a list of output formats,
* a fonction to create a converter. *)
type converter_plug = (Image.Generic.Pixel.format list)*(Image.Generic.Pixel.format list)*(unit->converter)
(** Plugin to register new converters. *)
val video_converters : converter_plug Plug.plug
(** [find_converter source destination] tries
* to find a converter from source format
* to destination format. Proportional scale
* is implicitely set via global configuration key
* for now. Returns a conversion function: frame -> frame -> unit. *)
val find_converter : Image.Generic.Pixel.format -> Image.Generic.Pixel.format -> (Image.Generic.t -> Image.Generic.t -> unit)
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