gnu: Add webrtc-for-telegram-desktop.

* gnu/packages/telegram.scm: New module.
(webrtc-for-telegram-desktop): New variable.
* gnu/local.mk (GNU_SYSTEM_MODULES): Add it.

Signed-off-by: Leo Prikler <leo.prikler@student.tugraz.at>

2 files changed, 145 insertions, 0 deletions

diff --git a/gnu/local.mk b/gnu/local.mk
index 4acba0990e..e93425f394 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -535,6 +535,7 @@ GNU_SYSTEM_MODULES =				\
   %D%/packages/task-management.scm		\
   %D%/packages/tbb.scm				\
   %D%/packages/tcl.scm				\
+  %D%/packages/telegram.scm                 \
   %D%/packages/telephony.scm			\
   %D%/packages/terminals.scm			\
   %D%/packages/terraform.scm			\
diff --git a/gnu/packages/telegram.scm b/gnu/packages/telegram.scm
new file mode 100644
index 0000000000..8efa8f2a0a
--- /dev/null
+++ b/gnu/packages/telegram.scm
@@ -0,0 +1,144 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2021 Raghav Gururajan <rg@raghavgururajan.name>
+;;;
+;;; 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 telegram)
+  #:use-module (gnu packages)
+  #:use-module (gnu packages assembly)
+  #:use-module (gnu packages image)
+  #:use-module (gnu packages linux)
+  #:use-module (gnu packages pkg-config)
+  #:use-module (gnu packages protobuf)
+  #:use-module (gnu packages pulseaudio)
+  #:use-module (gnu packages python)
+  #:use-module (gnu packages tls)
+  #:use-module (gnu packages video)
+  #:use-module (gnu packages xiph)
+  #:use-module ((guix licenses) #:prefix license:)
+  #:use-module (guix packages)
+  #:use-module (guix git-download)
+  #:use-module (guix build-system cmake))
+
+(define-public webrtc-for-telegram-desktop
+  (let ((commit "fa86fcc00c218813d61a272a56feab55c76a1ab9")
+        (revision "52"))
+    (hidden-package
+     (package
+       (name "webrtc-for-telegram-desktop")
+       (version
+        (git-version "0" revision commit))
+       (source
+        (origin
+          (method git-fetch)
+          (uri
+           (git-reference
+            (url "https://github.com/desktop-app/tg_owt.git")
+            (commit commit)))
+          (file-name
+           (git-file-name name version))
+          (sha256
+           (base32 "06gcrlym6vqqw7zlds9lpwyg37d5m81d87h16aps19v0v9gzan0l"))
+          (modules '((guix build utils)
+                     (ice-9 ftw)
+                     (srfi srfi-1)))
+          (snippet
+           `(begin
+              (let ((keep
+                     '( ;; Custom forks which are incompatible with the ones in Guix.
+                       "abseil-cpp" "libsrtp" "openh264" "rnnoise"
+                       ;; Not available in Guix.
+                       "pffft" "usrsctp"
+                       ;; Has cmake support files for libvpx input.
+                       "libvpx")))
+                (with-directory-excursion "src/third_party"
+                  (for-each delete-file-recursively
+                            (lset-difference string=?
+                                             (scandir ".")
+                                             (cons* "." ".." keep))))
+                #t)))))
+       (build-system cmake-build-system)
+       (arguments
+        `(#:tests? #f                   ; No target
+          #:configure-flags
+          (list
+           "-DCMAKE_C_FLAGS=-fPIC"
+           "-DCMAKE_CXX_FLAGS=-fPIC")
+          #:phases
+          (modify-phases %standard-phases
+            (add-after 'unpack 'copy-inputs
+              (lambda* (#:key inputs outputs #:allow-other-keys)
+                (let* ((libvpx-from (assoc-ref inputs "libvpx"))
+                       (libyuv-from (assoc-ref inputs "libyuv"))
+                       (libvpx-to (string-append (getcwd)
+                                                 "/src/third_party/libvpx/source/libvpx"))
+                       (libyuv-to (string-append (getcwd)
+                                                 "/src/third_party/libyuv")))
+                  (copy-recursively libvpx-from libvpx-to)
+                  (copy-recursively libyuv-from libyuv-to))
+                #t)))))
+       (native-inputs
+        `(("pkg-config" ,pkg-config)
+          ("python" ,python-wrapper)
+          ("yasm" ,yasm)))
+       (inputs
+        `(("alsa" ,alsa-lib)
+          ("ffmpeg" ,ffmpeg)
+          ("libjpeg" ,libjpeg-turbo)
+          ("libvpx"
+           ,(origin
+              (method git-fetch)
+              (uri
+               (git-reference
+                (url "https://chromium.googlesource.com/webm/libvpx")
+                (commit "5b63f0f821e94f8072eb483014cfc33b05978bb9")))
+              (file-name
+               (git-file-name "libvpx-for-webrtc-for-telegram-desktop" version))
+              (sha256
+               (base32 "1psvxaddihlw1k5n0anxif3qli6zyw2sa2ywn6mkb8six9myrp68"))))
+          ("libyuv"
+           ,(origin
+              (method git-fetch)
+              (uri
+               (git-reference
+                (url "https://chromium.googlesource.com/libyuv/libyuv")
+                (commit "ad890067f661dc747a975bc55ba3767fe30d4452")))
+              (file-name
+               (git-file-name "libyuv-for-webrtc-for-telegram-desktop" version))
+              (sha256
+               (base32 "01knnk4h247rq536097n9n3s3brxlbby3nv3ppdgsqfda3k159ll"))))
+          ("openssl" ,openssl)
+          ("opus" ,opus)
+          ("protobuf" ,protobuf)
+          ("pulseaudio" ,pulseaudio)))
+       (synopsis "WebRTC support for Telegram Desktop")
+       (description "WebRTC-for-Telegram-Desktop is a custom WebRTC fork by
+Telegram project, for its use in telegram desktop client.")
+       (home-page "https://github.com/desktop-app/tg_owt")
+       (license
+        (list
+         ;; Abseil-CPP
+         license:asl2.0
+         ;; LibYuv
+         (license:non-copyleft "file:///src/third_party/libyuv/LICENSE")
+         ;; OpenH264
+         license:bsd-2
+         ;; PFFFT
+         (license:non-copyleft "file:///src/third_party/pffft/LICENSE")
+         ;; RnNoise
+         license:gpl3
+         ;; LibSRTP, LibVPx, UsrSCTP and Others
+         license:bsd-3))))))