Add: v4l2-relayd (#2904) (#2910)

(cherry picked from commit 8cec8576cf) Co-authored-by: Gil <rockgrub@protonmail.com>
2026-05-31 09:01:55 +00:00 · 2025-01-12 02:13:48 -08:00
parent 60209bf579
commit be1545cc56
5 changed files with 107 additions and 0 deletions
@@ -0,0 +1,34 @@
+From 1be2bafe7a9aabf0389da9e685051859c56e64ce Mon Sep 17 00:00:00 2001
+From: Kate Hsuan <hpa@redhat.com>
+Date: Thu, 9 Feb 2023 15:26:37 +0800
+Subject: [PATCH] Set a new ID offset for the private event
+
+According to the v4l2loopback, the private event ID should be
+start from V4L2_EVENT_PRIVATE_START+0x08E00000. Therefore, the
+V4L2_EVENT_PRI_CLIENT_USAGE is V4L2_EVENT_PRIVATE_START+
+0x08E00000+1
+
+Signed-off-by: Kate Hsuan <hpa@redhat.com>
+---
+ src/v4l2-relayd.c | 5 ++++-
+ 1 file changed, 4 insertions(+), 1 deletion(-)
+
+diff --git a/src/v4l2-relayd.c b/src/v4l2-relayd.c
+index 21bb0d5..d731af0 100644
+--- a/src/v4l2-relayd.c
+++ b/src/v4l2-relayd.c
+@@ -27,7 +27,10 @@
+ #include <gst/app/gstappsrc.h>
+ #include <gst/video/video-info.h>
+ 
+-#define V4L2_EVENT_PRI_CLIENT_USAGE  V4L2_EVENT_PRIVATE_START
+#define V4L2LOOPBACK_EVENT_OFFSET 0x08E00000
+#define V4L2_EVENT_PRI_CLIENT_USAGE  (V4L2_EVENT_PRIVATE_START+\
+                                      V4L2LOOPBACK_EVENT_OFFSET+\
+                                      1)
+ 
+ struct v4l2_event_client_usage {
+   __u32 count;
+-- 
+2.39.2
+
@@ -0,0 +1,8 @@
+project pkg {
+  rpm {
+    spec = "v4l2-relayd.spec"
+  }
+  labels {
+        weekly = 1
+    }
+}
@@ -0,0 +1 @@
+rpm.version(gitlab("24306684"));
@@ -0,0 +1 @@
+enable v4l2-relayd.service
@@ -0,0 +1,63 @@
+%global commit 2e4d5c9ba53bfe8cfe16ea91932c8e5ecb090a87
+%global commitdate 20220126
+%global shortcommit %(c=%{commit}; echo ${c:0:7})
+
+Name:           v4l2-relayd
+Summary:        Utils for relaying the video stream between two video devices
+Version:        %{commitdate}.%{shortcommit}
+Release:        1%{?dist}
+License:        GPL-2.0-only
+Source0:        https://gitlab.com/vicamo/v4l2-relayd//-/archive/%{commit}/%{name}-%{shortcommit}.tar.gz
+Source1:        v4l2-relayd.preset
+### RPM Fusion | [v4l2-relayd] Set output stream to I420
+## https://lists.rpmfusion.org/archives/list/rpmfusion-commits@lists.rpmfusion.org/thread/VUMAJABDYISF3UVOSESSFYQBAMQK7VKY/
+Patch0:         0000-set-new-offset.patch
+BuildRequires:  systemd-rpm-macros
+BuildRequires:  gcc
+BuildRequires:  g++
+BuildRequires:  autoconf
+BuildRequires:  automake
+BuildRequires:  libtool
+BuildRequires:  glib2-devel
+BuildRequires:  gstreamer1-devel
+BuildRequires:  gstreamer1-plugins-base-devel
+BuildRequires:  systemd
+Requires:       v4l2loopback
+
+%description
+This is used to relay the input GStreamer source to an output source or a V4L2 device.
+
+%prep
+%autosetup -p1 -n %{name}-%{commit}
+autoreconf --force --install --verbose
+
+%build
+%configure
+%make_build
+
+%install
+%make_install modprobedir=%{_modprobedir}
+sed -i '/^EnvironmentFile=\/etc\/default\/v4l2-relayd/a EnvironmentFile=-\/run\/v4l2-relayd' %{buildroot}%{_unitdir}/v4l2-relayd.service
+sed -i 's/videoconvert/videoconvert ! video\/x-raw,format=I420/g' %{buildroot}%{_unitdir}/v4l2-relayd.service
+install -p -D -m 0644 %{SOURCE1} %{buildroot}%{_presetdir}/95-v4l2-relayd.preset
+
+%post
+%systemd_post v4l2-relayd.service
+
+%preun
+%systemd_preun v4l2-relayd.service
+
+%postun
+%systemd_postun_with_restart v4l2-relayd.service
+
+%files
+%license LICENSE
+%{_bindir}/v4l2-relayd
+%{_sysconfdir}/default/v4l2-relayd
+%{_modprobedir}/v4l2-relayd.conf
+%{_modulesloaddir}/v4l2-relayd.conf
+%{_unitdir}/v4l2-relayd.service
+%{_presetdir}/95-v4l2-relayd.preset
+
+%changelog
+%autochangelog