From b7d48634c5d389eddd761d888663e2c01232b784 Mon Sep 17 00:00:00 2001 From: Kieran Bingham Date: Mon, 3 Jan 2022 22:49:13 +0000 Subject: v4l2: Provide libcamerify wrapper script Support easier usage of the v4l2 compatibility layer with a script that handles the LD_PRELOAD for applications. The wrapper can be prefixed to launch any application with the preload set: $ libcamera-v4l2 v4l2-ctl --list-devices \_SB_.PCI0.GP13.XHC0.RHUB.PRT4- (libcamera:0): /dev/video0 platform/vimc.0 Sensor B (libcamera:1): /dev/video2 /dev/video3 /dev/video4 Specifying '-d' once before the command to run will enable V4L2Compat layer debug output from libcamera. Specifying '-d' twice will enable all debug levels from all libcamera components and provide a very detailed log for analysis. Signed-off-by: Kieran Bingham Reviewed-by: Laurent Pinchart Reviewed-by: Paul Elder --- src/v4l2/meson.build | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'src/v4l2/meson.build') diff --git a/src/v4l2/meson.build b/src/v4l2/meson.build index f78497b6..f132103c 100644 --- a/src/v4l2/meson.build +++ b/src/v4l2/meson.build @@ -33,3 +33,14 @@ v4l2_compat = shared_library('v4l2-compat', install : true, dependencies : [libcamera_private, libdl], cpp_args : v4l2_compat_cpp_args) + +# Provide a wrapper script to support easily loading applications with the V4L2 +# adaptation layer. + +cdata = configuration_data() +cdata.set('LIBCAMERA_V4L2_SO', get_option('prefix') / get_option('libdir') / 'v4l2-compat.so') + +configure_file(input : 'libcamerify.in', + output : 'libcamerify', + configuration : cdata, + install_dir : get_option('bindir')) -- cgit v1.2.1