[jackhill/guix/guix.git] / gnu / packages / xiph.scm

;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2013, 2014 Andreas Enge <andreas@enge.fr>
;;; Copyright © 2013 Nikita Karetnikov <nikita@karetnikov.org>
;;; Copyright © 2013 David Thompson <dthompson2@worcester.edu>
;;; Copyright © 2014 Sree Harsha Totakura <sreeharsha@totakura.in>
;;; Copyright © 2014 Mark H Weaver <mhw@netris.org>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix 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 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix 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.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.

(define-module (gnu packages xiph)
  #:use-module (gnu packages)
  #:use-module (gnu packages bison)
  #:use-module (gnu packages compression)
  #:use-module (gnu packages curl)
  #:use-module (gnu packages doxygen)
  #:use-module (gnu packages image)
  #:use-module (gnu packages pkg-config)
  #:use-module (gnu packages python)
  #:use-module (gnu packages linux)
  #:use-module (gnu packages pulseaudio)
  #:use-module ((guix licenses)
                #:renamer (symbol-prefix-proc 'license:))
  #:use-module (guix packages)
  #:use-module (guix download)
  #:use-module (guix build-system gnu)
  #:export (libogg
            libvorbis
            libtheora
            speex
            ao
            flac
            libkate
            vorbis-tools
            opus))

(define libogg
  (package
   (name "libogg")
   (version "1.3.0")
   (source (origin
            (method url-fetch)
            (uri (string-append "http://downloads.xiph.org/releases/ogg/libogg-"
                                version ".tar.xz"))
            (sha256
             (base32
              "0jy79ffkl34vycnwfsj4svqsdg1lwy2l1rr49y8r4d44kh12a5r3"))))
   (build-system gnu-build-system)
   (synopsis "libogg, a library for manipulating the ogg multimedia format")
   (description
    "The libogg library allows to manipulate the ogg multimedia container
format, which encapsulates raw compressed data and allows the interleaving of
audio and video data. In addition to encapsulation and interleaving of
multiple data streams, ogg provides packet framing, error detection, and
periodic timestamps for seeking.")
   (license (license:bsd-style "file://COPYING"
                               "See COPYING in the distribution."))
   (home-page "http://xiph.org/ogg/")))

(define libvorbis
  (package
   (name "libvorbis")
   (version "1.3.4")
   (source (origin
            (method url-fetch)
            (uri (string-append "http://downloads.xiph.org/releases/vorbis/libvorbis-"
                                version ".tar.xz"))
            (sha256
             (base32
              "0wpk87jnhngcl3nc5i39flkycx1sjzilx8jjx4zc4p8r55ylj19g"))))
   (build-system gnu-build-system)
   (propagated-inputs `(("libogg" ,libogg)))
   (arguments `(#:configure-flags '("LDFLAGS=-lm")
                #:parallel-tests? #f))
   (synopsis "libvorbis, a library implementing the vorbis audio format")
   (description
    "The libvorbis library implements the ogg vorbis audio format,
a fully open, non-proprietary, patent-and-royalty-free, general-purpose
compressed audio format for mid to high quality (8kHz-48.0kHz, 16+ bit,
polyphonic) audio and music at fixed and variable bitrates from 16 to
128 kbps/channel.")
   (license (license:bsd-style "file://COPYING"
                               "See COPYING in the distribution."))
   (home-page "http://xiph.org/vorbis/")))

(define libtheora
  (package
    (name "libtheora")
    (version "1.1.1")
    (source (origin
             (method url-fetch)
             (uri (string-append "http://downloads.xiph.org/releases/theora/libtheora-"
                                 version ".tar.xz"))
             (sha256
              (base32
               "0q8wark9ribij57dciym5vdikg2464p8q2mgqvfb78ksjh4s8vgk"))
             (patches (list (search-patch "libtheora-config-guess.patch")))))
    (build-system gnu-build-system)
    (inputs `(("libvorbis" ,libvorbis)))
    ;; The .pc files refer to libogg.
    (propagated-inputs `(("libogg" ,libogg)))
    (synopsis "Library implementing the Theora video format")
    (description
     "The libtheora library implements the ogg theora video format,
a fully open, non-proprietary, patent-and-royalty-free, general-purpose
compressed video format.")
    (license license:bsd-3)
    (home-page "http://xiph.org/theora/")))

(define speex
  (package
    (name "speex")
    (version "1.2rc1")
    (source
     (origin
      (method url-fetch)
      (uri (string-append "http://downloads.xiph.org/releases/speex/speex-"
                          version ".tar.gz"))
      (sha256
       (base32
        "19mpkhbz3s08snvndn0h1dk2j139max6b0rr86nnsjmxazf30brl"))))
    (build-system gnu-build-system)
    (inputs `(("libogg" ,libogg)))
    (home-page "https://gnu.org/software/speex")
    (synopsis "Library for patent-free audio compression format")
    (description
     "GNU Speex is a patent-free audio compression codec specially designed
for speech.  It is well-adapted to internet applications, such as VoIP.  It
features compression of different bands in the same bitstream, intensity
stereo encoding, and voice activity detection.")
    ;; 'src/getopt.c' is under LGPLv2+
    (license (license:bsd-style "file://COPYING"
                                "See COPYING in the distribution."))))

(define ao
  (package
    (name "ao")
    (version "1.1.0")
    (source
     (origin
      (method url-fetch)
      (uri (string-append "http://downloads.xiph.org/releases/ao/libao-"
                          version ".tar.gz"))
      (sha256
       (base32
        "1m0v2y6bhr4iwsgdkc7b3y0qgpvpv1ifbxsy8n8ahsvjn6wmppi9"))))
    (build-system gnu-build-system)
    ;; FIXME: Add further backends, see the summary printed after configure.
    ;; XXX: Should back-ends be pushed to different outputs?  For instance,
    ;; "out" would include only the ALSA back-end, while "pulse" would
    ;; contain 'lib/ao/plugins-4/libpulse.*'.
    (inputs `(("pkg-config" ,pkg-config)
              ("alsa-lib" ,alsa-lib)
              ("pulseaudio" ,pulseaudio)))
    (synopsis "Cross platform audio library")
    (description
     "Libao is a cross-platform audio library that allows programs to
output audio using a simple API on a wide variety of platforms.
It currently supports:
Null output (handy for testing without a sound device),
WAV files,
AU files,
RAW files,
OSS (Open Sound System, used on Linux and FreeBSD),
ALSA (Advanced Linux Sound Architecture),
aRts (Analog RealTime Synth, used by KDE),
PulseAudio (next generation GNOME sound server),
esd (EsounD or Enlightened Sound Daemon),
Mac OS X,
Windows (98 and later),
AIX,
Sun/NetBSD/OpenBSD,
IRIX,
NAS (Network Audio Server),
RoarAudio (Modern, multi-OS, networked Sound System),
OpenBSD's sndio.")
    (license license:gpl2+)
    (home-page "http://www.xiph.org/ao/")))

(define flac
  (package
   (name "flac")
   (version "1.3.0")
   (source (origin
            (method url-fetch)
            (uri (string-append "http://downloads.xiph.org/releases/flac/flac-"
                                version ".tar.xz"))
            (sha256
             (base32
              "1p0hh190kqvpkbk1bbajd81jfbmkyl4fn2i7pggk2zppq6m68bgs"))))
   (build-system gnu-build-system)
   (arguments
    `(#:parallel-tests? #f
      ;; By default, man pages are put in PREFIX/man,
      ;; but we want them in PREFIX/share/man.
      #:configure-flags (list (string-append "--mandir="
                                             (assoc-ref %outputs "out")
                                             "/share/man"))))
   ;; FIXME: configure also looks for xmms, input could be added once it exists
   (inputs `(("libogg" ,libogg)))
   (synopsis "flac free lossless audio codec")
   (description
"FLAC stands for Free Lossless Audio Codec, an audio format that is lossless,
meaning that audio is compressed in FLAC without any loss in quality.")
   (license (license:bsd-style "file://COPYING"
                               "See COPYING in the distribution.")) ; and LGPL and GPL
   (home-page "http://xiph.org/flac/")))

(define libkate
  (package
   (name "libkate")
   (version "0.4.1")
   (source (origin
            (method url-fetch)
            (uri (string-append "http://libkate.googlecode.com/files/libkate-"
                                version ".tar.gz"))
            (sha256
             (base32
              "0s3vr2nxfxlf1k75iqpp4l78yf4gil3f0v778kvlngbchvaq23n4"))))
   (build-system gnu-build-system)
   (native-inputs `(("doxygen" ,doxygen)
                    ("pkg-config" ,pkg-config)))
   ;; FIXME: Add optional input liboggz
   (inputs `(("bison" ,bison)
             ("libogg" ,libogg)
             ("libpng" ,libpng)
("python" ,python-wrapper)
             ("zlib" ,zlib)))
   (synopsis "kate, a karaoke and text codec for embedding in ogg")
   (description
    "Kate is an overlay codec, originally designed for karaoke and text,
that can be multiplixed in Ogg. Text and images can be carried by a Kate
stream, and animated. Most of the time, this would be multiplexed with
audio/video to carry subtitles, song lyrics (with or without karaoke data),
etc., but doesn't have to be.

Series of curves (splines, segments, etc.) may be attached to various
properties (text position, font size, etc.) to create animated overlays.
This allows scrolling or fading text to be defined. This can even be used
to draw arbitrary shapes, so hand drawing can also be represented by a
Kate stream.")
   (license license:bsd-3)
   (home-page "http://code.google.com/p/libkate/")))

(define vorbis-tools
  (package
   (name "vorbis-tools")
   (version "1.4.0")
   (source (origin
            (method url-fetch)
            (uri (string-append "http://downloads.xiph.org/releases/vorbis/vorbis-tools-"
                                version ".tar.gz"))
            (sha256
             (base32
              "1g12bnh5ah08v529y72kfdz5lhvy75iaz7f9jskyby23m9dkk2d3"))))
   (build-system gnu-build-system)
   (inputs `(("ao" ,ao)
             ("curl" ,curl)
             ("flac" ,flac)
             ("libkate" ,libkate)
             ("libogg" ,libogg)
             ("libvorbis" ,libvorbis)
             ("pkg-config" ,pkg-config)
             ("speex" ,speex)))
   (synopsis "ogg vorbis tools")
   (description
    "Ogg vorbis is a non-proprietary, patent-and-royalty-free,
general-purpose compressed audio format.

The package vorbis-tools contains
ogg123,  an ogg vorbis command line audio player;
oggenc,  the ogg vorbis encoder;
oggdec,  a simple, portable command line decoder (to wav and raw);
ogginfo, to obtain information (tags, bitrate, length, etc.) about
         an ogg vorbis file.")
   (license license:gpl2)
   (home-page "http://xiph.org/vorbis/")))

(define opus
  (package
    (name "opus")
    (version "1.1")
    (source (origin
              (method url-fetch)
              (uri (string-append
                    "http://downloads.xiph.org/releases/opus/opus-" version
                    ".tar.gz"))
              (sha256
               (base32
                "158xprn2086arvdib3vbbygz7z6jqkw2nci7nlywzzwallap0wmr"))))
    (build-system gnu-build-system)
    (synopsis "highly versatile audio codec")
    (description
     "Opus is a totally open, royalty-free, highly versatile audio codec. Opus
is unmatched for interactive speech and music transmission over the Internet,
but is also intended for storage and streaming applications. It is
standardized by the Internet Engineering Task Force (IETF) as RFC 6716 which
incorporated technology from Skype's SILK codec and Xiph.Org's CELT codec.")
    (license license:bsd-3)
    (home-page "http://www.opus-codec.org/")))
Commit	Line	Data
6a06172b	1	;;; GNU Guix --- Functional package management for GNU
707d3e24	2	;;; Copyright © 2013, 2014 Andreas Enge <andreas@enge.fr>
1f5ec939	3	;;; Copyright © 2013 Nikita Karetnikov <nikita@karetnikov.org>
15e82fb2	4	;;; Copyright © 2013 David Thompson <dthompson2@worcester.edu>
a7f904fd	5	;;; Copyright © 2014 Sree Harsha Totakura <sreeharsha@totakura.in>
c9a010db	6	;;; Copyright © 2014 Mark H Weaver <mhw@netris.org>
6a06172b AE	7	;;;
	8	;;; This file is part of GNU Guix.
	9	;;;
	10	;;; GNU Guix is free software; you can redistribute it and/or modify it
	11	;;; under the terms of the GNU General Public License as published by
	12	;;; the Free Software Foundation; either version 3 of the License, or (at
	13	;;; your option) any later version.
	14	;;;
	15	;;; GNU Guix is distributed in the hope that it will be useful, but
	16	;;; WITHOUT ANY WARRANTY; without even the implied warranty of
	17	;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	18	;;; GNU General Public License for more details.
	19	;;;
	20	;;; You should have received a copy of the GNU General Public License
	21	;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
	22
54ff0b7d	23	(define-module (gnu packages xiph)
dc2e4b0e AE	24	#:use-module (gnu packages)
	25	#:use-module (gnu packages bison)
	26	#:use-module (gnu packages compression)
1f73d3b4	27	#:use-module (gnu packages curl)
707d3e24	28	#:use-module (gnu packages doxygen)
e55354b8	29	#:use-module (gnu packages image)
76e38f0d	30	#:use-module (gnu packages pkg-config)
dc2e4b0e	31	#:use-module (gnu packages python)
ba04571a	32	#:use-module (gnu packages linux)
5ccca004	33	#:use-module (gnu packages pulseaudio)
dc2e4b0e AE	34	#:use-module ((guix licenses)
dc2e4b0e AE	35	#:renamer (symbol-prefix-proc 'license:))
6a06172b AE	36	#:use-module (guix packages)
6a06172b AE	37	#:use-module (guix download)
cfc8261c LC	38	#:use-module (guix build-system gnu)
	39	#:export (libogg
	40	libvorbis
15e82fb2	41	libtheora
cfc8261c LC	42	speex
	43	ao
	44	flac
	45	libkate
a7f904fd SHT	46	vorbis-tools
a7f904fd SHT	47	opus))
6a06172b	48
cfc8261c	49	(define libogg
6a06172b AE	50	(package
	51	(name "libogg")
	52	(version "1.3.0")
	53	(source (origin
	54	(method url-fetch)
	55	(uri (string-append "http://downloads.xiph.org/releases/ogg/libogg-"
	56	version ".tar.xz"))
	57	(sha256
	58	(base32
	59	"0jy79ffkl34vycnwfsj4svqsdg1lwy2l1rr49y8r4d44kh12a5r3"))))
	60	(build-system gnu-build-system)
	61	(synopsis "libogg, a library for manipulating the ogg multimedia format")
	62	(description
	63	"The libogg library allows to manipulate the ogg multimedia container
	64	format, which encapsulates raw compressed data and allows the interleaving of
	65	audio and video data. In addition to encapsulation and interleaving of
	66	multiple data streams, ogg provides packet framing, error detection, and
	67	periodic timestamps for seeking.")
dc2e4b0e AE	68	(license (license:bsd-style "file://COPYING"
dc2e4b0e AE	69	"See COPYING in the distribution."))
6a06172b AE	70	(home-page "http://xiph.org/ogg/")))
6a06172b AE	71
cfc8261c	72	(define libvorbis
6a06172b AE	73	(package
6a06172b AE	74	(name "libvorbis")
2af4937e	75	(version "1.3.4")
6a06172b AE	76	(source (origin
	77	(method url-fetch)
	78	(uri (string-append "http://downloads.xiph.org/releases/vorbis/libvorbis-"
	79	version ".tar.xz"))
	80	(sha256
	81	(base32
2af4937e	82	"0wpk87jnhngcl3nc5i39flkycx1sjzilx8jjx4zc4p8r55ylj19g"))))
6a06172b	83	(build-system gnu-build-system)
bad312e3	84	(propagated-inputs `(("libogg" ,libogg)))
f0cfe3c4 EB	85	(arguments `(#:configure-flags '("LDFLAGS=-lm")
f0cfe3c4 EB	86	#:parallel-tests? #f))
6a06172b AE	87	(synopsis "libvorbis, a library implementing the vorbis audio format")
	88	(description
	89	"The libvorbis library implements the ogg vorbis audio format,
	90	a fully open, non-proprietary, patent-and-royalty-free, general-purpose
	91	compressed audio format for mid to high quality (8kHz-48.0kHz, 16+ bit,
	92	polyphonic) audio and music at fixed and variable bitrates from 16 to
	93	128 kbps/channel.")
dc2e4b0e AE	94	(license (license:bsd-style "file://COPYING"
dc2e4b0e AE	95	"See COPYING in the distribution."))
6a06172b AE	96	(home-page "http://xiph.org/vorbis/")))
6a06172b AE	97
15e82fb2 DT	98	(define libtheora
	99	(package
	100	(name "libtheora")
	101	(version "1.1.1")
	102	(source (origin
	103	(method url-fetch)
	104	(uri (string-append "http://downloads.xiph.org/releases/theora/libtheora-"
	105	version ".tar.xz"))
	106	(sha256
	107	(base32
46acd054 MW	108	"0q8wark9ribij57dciym5vdikg2464p8q2mgqvfb78ksjh4s8vgk"))
46acd054 MW	109	(patches (list (search-patch "libtheora-config-guess.patch")))))
15e82fb2 DT	110	(build-system gnu-build-system)
	111	(inputs `(("libvorbis" ,libvorbis)))
	112	;; The .pc files refer to libogg.
	113	(propagated-inputs `(("libogg" ,libogg)))
	114	(synopsis "Library implementing the Theora video format")
	115	(description
	116	"The libtheora library implements the ogg theora video format,
	117	a fully open, non-proprietary, patent-and-royalty-free, general-purpose
	118	compressed video format.")
	119	(license license:bsd-3)
	120	(home-page "http://xiph.org/theora/")))
	121
cfc8261c	122	(define speex
1f5ec939 NK	123	(package
	124	(name "speex")
	125	(version "1.2rc1")
	126	(source
	127	(origin
	128	(method url-fetch)
	129	(uri (string-append "http://downloads.xiph.org/releases/speex/speex-"
	130	version ".tar.gz"))
	131	(sha256
	132	(base32
	133	"19mpkhbz3s08snvndn0h1dk2j139max6b0rr86nnsjmxazf30brl"))))
	134	(build-system gnu-build-system)
	135	(inputs `(("libogg" ,libogg)))
	136	(home-page "https://gnu.org/software/speex")
f50d2669	137	(synopsis "Library for patent-free audio compression format")
1f5ec939	138	(description
79c311b8 LC	139	"GNU Speex is a patent-free audio compression codec specially designed
79c311b8 LC	140	for speech. It is well-adapted to internet applications, such as VoIP. It
a22dc0c4 LC	141	features compression of different bands in the same bitstream, intensity
a22dc0c4 LC	142	stereo encoding, and voice activity detection.")
1f5ec939	143	;; 'src/getopt.c' is under LGPLv2+
dc2e4b0e AE	144	(license (license:bsd-style "file://COPYING"
dc2e4b0e AE	145	"See COPYING in the distribution."))))
1f5ec939	146
cfc8261c	147	(define ao
76e38f0d AE	148	(package
	149	(name "ao")
	150	(version "1.1.0")
	151	(source
	152	(origin
	153	(method url-fetch)
	154	(uri (string-append "http://downloads.xiph.org/releases/ao/libao-"
	155	version ".tar.gz"))
	156	(sha256
	157	(base32
	158	"1m0v2y6bhr4iwsgdkc7b3y0qgpvpv1ifbxsy8n8ahsvjn6wmppi9"))))
	159	(build-system gnu-build-system)
	160	;; FIXME: Add further backends, see the summary printed after configure.
5ccca004 LC	161	;; XXX: Should back-ends be pushed to different outputs? For instance,
5ccca004 LC	162	;; "out" would include only the ALSA back-end, while "pulse" would
54ff0b7d	163	;; contain 'lib/ao/plugins-4/libpulse.*'.
ba04571a	164	(inputs `(("pkg-config" ,pkg-config)
5ccca004 LC	165	("alsa-lib" ,alsa-lib)
5ccca004 LC	166	("pulseaudio" ,pulseaudio)))
ba04571a	167	(synopsis "Cross platform audio library")
76e38f0d AE	168	(description
	169	"Libao is a cross-platform audio library that allows programs to
	170	output audio using a simple API on a wide variety of platforms.
	171	It currently supports:
	172	Null output (handy for testing without a sound device),
	173	WAV files,
	174	AU files,
	175	RAW files,
	176	OSS (Open Sound System, used on Linux and FreeBSD),
	177	ALSA (Advanced Linux Sound Architecture),
	178	aRts (Analog RealTime Synth, used by KDE),
	179	PulseAudio (next generation GNOME sound server),
	180	esd (EsounD or Enlightened Sound Daemon),
	181	Mac OS X,
	182	Windows (98 and later),
	183	AIX,
	184	Sun/NetBSD/OpenBSD,
	185	IRIX,
	186	NAS (Network Audio Server),
	187	RoarAudio (Modern, multi-OS, networked Sound System),
	188	OpenBSD's sndio.")
dc2e4b0e	189	(license license:gpl2+)
76e38f0d AE	190	(home-page "http://www.xiph.org/ao/")))
76e38f0d AE	191
cfc8261c	192	(define flac
9ae7865e AE	193	(package
9ae7865e AE	194	(name "flac")
399fdcf7	195	(version "1.3.0")
9ae7865e AE	196	(source (origin
	197	(method url-fetch)
	198	(uri (string-append "http://downloads.xiph.org/releases/flac/flac-"
399fdcf7	199	version ".tar.xz"))
9ae7865e AE	200	(sha256
9ae7865e AE	201	(base32
399fdcf7	202	"1p0hh190kqvpkbk1bbajd81jfbmkyl4fn2i7pggk2zppq6m68bgs"))))
9ae7865e AE	203	(build-system gnu-build-system)
9ae7865e AE	204	(arguments
c9a010db MW	205	`(#:parallel-tests? #f
	206	;; By default, man pages are put in PREFIX/man,
	207	;; but we want them in PREFIX/share/man.
	208	#:configure-flags (list (string-append "--mandir="
	209	(assoc-ref %outputs "out")
	210	"/share/man"))))
9ae7865e	211	;; FIXME: configure also looks for xmms, input could be added once it exists
01eafd38	212	(inputs `(("libogg" ,libogg)))
9ae7865e AE	213	(synopsis "flac free lossless audio codec")
	214	(description
	215	"FLAC stands for Free Lossless Audio Codec, an audio format that is lossless,
	216	meaning that audio is compressed in FLAC without any loss in quality.")
dc2e4b0e AE	217	(license (license:bsd-style "file://COPYING"
dc2e4b0e AE	218	"See COPYING in the distribution.")) ; and LGPL and GPL
9ae7865e AE	219	(home-page "http://xiph.org/flac/")))
9ae7865e AE	220
cfc8261c	221	(define libkate
dc2e4b0e AE	222	(package
	223	(name "libkate")
	224	(version "0.4.1")
	225	(source (origin
	226	(method url-fetch)
	227	(uri (string-append "http://libkate.googlecode.com/files/libkate-"
	228	version ".tar.gz"))
	229	(sha256
	230	(base32
	231	"0s3vr2nxfxlf1k75iqpp4l78yf4gil3f0v778kvlngbchvaq23n4"))))
	232	(build-system gnu-build-system)
707d3e24 AE	233	(native-inputs `(("doxygen" ,doxygen)
	234	("pkg-config" ,pkg-config)))
	235	;; FIXME: Add optional input liboggz
dc2e4b0e AE	236	(inputs `(("bison" ,bison)
	237	("libogg" ,libogg)
	238	("libpng" ,libpng)
707d3e24	239	("python" ,python-wrapper)
dc2e4b0e AE	240	("zlib" ,zlib)))
	241	(synopsis "kate, a karaoke and text codec for embedding in ogg")
	242	(description
	243	"Kate is an overlay codec, originally designed for karaoke and text,
	244	that can be multiplixed in Ogg. Text and images can be carried by a Kate
	245	stream, and animated. Most of the time, this would be multiplexed with
	246	audio/video to carry subtitles, song lyrics (with or without karaoke data),
	247	etc., but doesn't have to be.
	248
	249	Series of curves (splines, segments, etc.) may be attached to various
	250	properties (text position, font size, etc.) to create animated overlays.
	251	This allows scrolling or fading text to be defined. This can even be used
	252	to draw arbitrary shapes, so hand drawing can also be represented by a
	253	Kate stream.")
	254	(license license:bsd-3)
	255	(home-page "http://code.google.com/p/libkate/")))
	256
cfc8261c	257	(define vorbis-tools
6a06172b AE	258	(package
	259	(name "vorbis-tools")
	260	(version "1.4.0")
	261	(source (origin
	262	(method url-fetch)
	263	(uri (string-append "http://downloads.xiph.org/releases/vorbis/vorbis-tools-"
	264	version ".tar.gz"))
	265	(sha256
	266	(base32
	267	"1g12bnh5ah08v529y72kfdz5lhvy75iaz7f9jskyby23m9dkk2d3"))))
	268	(build-system gnu-build-system)
1f73d3b4 AE	269	(inputs `(("ao" ,ao)
1f73d3b4 AE	270	("curl" ,curl)
dc2e4b0e AE	271	("flac" ,flac)
dc2e4b0e AE	272	("libkate" ,libkate)
1f73d3b4	273	("libogg" ,libogg)
1f5ec939	274	("libvorbis" ,libvorbis)
1f73d3b4	275	("pkg-config" ,pkg-config)
1f5ec939	276	("speex" ,speex)))
6a06172b AE	277	(synopsis "ogg vorbis tools")
	278	(description
	279	"Ogg vorbis is a non-proprietary, patent-and-royalty-free,
	280	general-purpose compressed audio format.
	281
	282	The package vorbis-tools contains
	283	ogg123, an ogg vorbis command line audio player;
	284	oggenc, the ogg vorbis encoder;
	285	oggdec, a simple, portable command line decoder (to wav and raw);
	286	ogginfo, to obtain information (tags, bitrate, length, etc.) about
	287	an ogg vorbis file.")
dc2e4b0e	288	(license license:gpl2)
6a06172b	289	(home-page "http://xiph.org/vorbis/")))
a7f904fd SHT	290
	291	(define opus
	292	(package
	293	(name "opus")
	294	(version "1.1")
	295	(source (origin
	296	(method url-fetch)
	297	(uri (string-append
	298	"http://downloads.xiph.org/releases/opus/opus-" version
	299	".tar.gz"))
	300	(sha256
	301	(base32
	302	"158xprn2086arvdib3vbbygz7z6jqkw2nci7nlywzzwallap0wmr"))))
	303	(build-system gnu-build-system)
	304	(synopsis "highly versatile audio codec")
	305	(description
	306	"Opus is a totally open, royalty-free, highly versatile audio codec. Opus
	307	is unmatched for interactive speech and music transmission over the Internet,
	308	but is also intended for storage and streaming applications. It is
	309	standardized by the Internet Engineering Task Force (IETF) as RFC 6716 which
	310	incorporated technology from Skype's SILK codec and Xiph.Org's CELT codec.")
	311	(license license:bsd-3)
	312	(home-page "http://www.opus-codec.org/")))