gnu: ffmpeg-jami: Enable pipewire support.

* gnu/packages/video.scm (ffmpeg-jami)
[arguments]: Update configure flags.
[inputs]: Add pipewire.
* gnu/packages/patches/ffmpeg-jami-pipewiregrab-source-filter.patch: Fix
includes.

Change-Id: Ife3bf532496bc06144c1cbbcea50e406a58ecc7a

gnu/packages/patches/ffmpeg-jami-pipewiregrab-source-filter.patch

@@ -75,7 +75,7 @@ new file mode 100644
 index 0000000000..ff9c3468ab
 --- /dev/null
 +++ b/libavfilter/vsrc_pipewiregrab.c
-@@ -0,0 +1,1373 @@
+@@ -0,0 +1,1375 @@
 +/*
 + * PipeWire input grabber (ScreenCast)
 + * Copyright (C) 2024 Savoir-faire Linux, Inc.
@@ -117,6 +117,8 @@ index 0000000000..ff9c3468ab
 +#include <sys/mman.h>
 +#include <sys/queue.h>
 +
++#include "libavfilter/formats.h"
++#include "libavfilter/video.h"
 +#include "libavutil/internal.h"
 +#include "libavutil/mathematics.h"
 +#include "libavutil/opt.h"

gnu/packages/video.scm

@@ -2050,6 +2050,11 @@ (define-public ffmpeg-jami
                 "--disable-programs"
                 "--disable-postproc"
 
+                "--enable-libpipewire"
+                "--enable-filter=pipewiregrab"
+                "--enable-indev=lavfi"
+                "--enable-decoder=wrapped_avframe"
+
                 "--disable-protocols"
                 "--enable-protocol=crypto"
                 "--enable-protocol=file"
@@ -2257,7 +2262,9 @@ (define-public ffmpeg-jami
                          "--enable-encoder=vp8_vaapi"
                          "--enable-encoder=mjpeg_vaapi"
                          "--enable-encoder=hevc_vaapi")
-                       '())))))))
+                       '())))))
+    (inputs (modify-inputs (package-inputs ffmpeg)
+              (append pipewire)))))
 
 (define-public ffmpegthumbnailer
   (package