xdp-remote-desktop.py ($39) · Snippets

Hi, is there a way how to modify this just to share a single window? thx!

I tried to change the type in screen_cast_call(portal.SelectSources ... according to documentation to 2 but without an effect

Hi, is there a way how to modify this just to share a single window? thx!

I tried to change the type in screen_cast_call(portal.SelectSources ... according to documentation to 2 but without an effect

See https://github.com/flatpak/xdg-desktop-portal-gtk/issues/204

method(*(args + (options, )), a=b)

You don't need that clutter. Python is perfectly happy with

method(*args, options, a=b)

Is this script still supposed to work? The Remote desktop and screen casting in Wayland page says

it should pop up a window with the content of the compositor in real time

but nothing happens (no window opens) after I select the "Unknown Display" and the "Keyboard" on Fedora 33.

Also, if I do not select "Keyboard" I will get dbus.exceptions.DBusException: org.freedesktop.DBus.Error.Failed: Invalid call call.

Works here on F33. Make sure you have xdg-desktop-portal-1.8.0-1.fc33.x86_64 and xdg-desktop-portal-gtk-1.8.0-1.fc33.x86_64.

It turns out that the xvimagesink is not working in a virtual machine (I was testing Fedora 33 in a VirtualBox).

To show the video stream in a virtual machine, the xvimagesink should be replaced with the autovideosink.

Hi,

[Problem solved, I let it here in case someone has the same issue]

Thanks for this script that did already help me a bit to diagnostic my issue.

It is not linked to your script as I can't share my screen with other applications too, so don't feel obliged to answer at all. But in case you have an idea of what I can do, it will help me a lot !

I recently migrated from an older version of fedora (already using wayland) to fedora 33.

Before the migration I was able to share my screen in firefox, no I can't any-more, it's stay blocked after I accept to share the screen.

So I have tried your script, and the result is a bit the same. It asks me witch screen I want to share, and after I accept it stays blocked, I can't see a window with a mirror of the screen, and produce the following output.

python3 xdp-remote-deskto.py 
/data/Downloads/xdp-remote-deskto.py:13: PyGIDeprecationWarning: Since version 3.11, calling threads_init is no longer needed. See: https://wiki.gnome.org/PyGObject/Threading
  GObject.threads_init()
session /org/freedesktop/portal/desktop/session/1_249/u1 created
devices selected
sources selected
streams:
stream 57
ERROR:dbus.connection:Exception in handler for D-Bus signal:
Traceback (most recent call last):
  File "/usr/lib64/python3.9/site-packages/dbus/connection.py", line 232, in maybe_handle_message
    self._handler(*args, **kwargs)
  File "/data/Downloads/xdp-remote-deskto.py", line 95, in on_start_response
    play_pipewire_stream(node_id)
  File "/data/Downloads/xdp-remote-deskto.py", line 78, in play_pipewire_stream
    fd_object = portal.OpenPipeWireRemote(session, empty_dict,
  File "/usr/lib64/python3.9/site-packages/dbus/proxies.py", line 141, in __call__
    return self._connection.call_blocking(self._named_service,
  File "/usr/lib64/python3.9/site-packages/dbus/connection.py", line 652, in call_blocking
    reply_message = self.send_message_with_reply_and_block(
dbus.exceptions.DBusException: org.freedesktop.DBus.Error.NoReply: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.

The shared screen orange icon is displayed and stay visible even after I interrupt the share screen. I can click on it and ask to stop the sharing to make it disappear.

I did have mutter-3.38.1-1.fc33.x86_64, pipewire-0.3.14-2.fc33.x86_64, xdg-desktop-portal{,-gtk}-1.8.0-1.fc33.x86_64.

That's where I am, with no good idea of what to do next. Maybe It can be linked to dbus configuration in /etc/dbus-1/system.d ?

Thanks again.

[edit]

using systemctl --user status pipewire.service command, I got the following trace.

nov. 06 22:40:04 ludop.hq.usharesoft.com pipewire[3116]: [E][000005012.481653][module-access.c:102 check_flatpak()] failed to open "/proc/2052/root": Permission denied
nov. 06 22:40:04 ludop.hq.usharesoft.com pipewire[3116]: [W][000005012.481676][module-access.c:196 context_check_access()] access 0x55ac53a1dae0: client 0x55ac53ba1170 sandbox check failed: Permission denied

If found this lead : https://bugzilla.redhat.com/show_bug.cgi?id=1894437

I will try to downgrade my pipewire package and let you know.

I had to reboot after downgrading the pipewire but it worked.

So the fix for me was to run : sudo dnf downgrade pipewire to downgrade from the version 0.3.14 to the version 0.3.13.

Sorry to have polluted this snippet comments.

[/edit]

$ python3 xdp-remote-deskto.py 
xdp-remote-deskto.py:13: PyGIDeprecationWarning: Since version 3.11, calling threads_init is no longer needed. See: https://wiki.gnome.org/PyGObject/Threading
  GObject.threads_init()
session /org/freedesktop/portal/desktop/session/1_142/u1 created
devices selected
sources selected
streams:
stream 63
ERROR:dbus.connection:Exception in handler for D-Bus signal:
Traceback (most recent call last):
  File "/usr/lib/python3.8/site-packages/dbus/connection.py", line 232, in maybe_handle_message
    self._handler(*args, **kwargs)
  File "xdp-remote-deskto.py", line 95, in on_start_response
    play_pipewire_stream(node_id)
  File "xdp-remote-deskto.py", line 81, in play_pipewire_stream
    pipeline = Gst.parse_launch('pipewiresrc fd=%d path=%u ! videoconvert ! xvimagesink'%(fd, node_id))
gi.repository.GLib.GError: gst_parse_error: no element "pipewiresrc" (1)

@reagentoo, you need to install libgstpipewire.so. In fedora this is part of the pipewire-gstreamer package; in other distributions I don't know.

@jadahl, I've rebuilt pipewire on Gentoo with +gstreamer USE: media-video/pipewire-0.3.21 USE="X* ffmpeg gstreamer* pulseaudio vulkan -bluetooth -debug -doc -jack -systemd -test"

But now I've got:

    pipeline = Gst.parse_launch('pipewiresrc fd=%d path=%u ! videoconvert ! xvimagesink'%(fd, node_id))
gi.repository.GLib.GError: gst_parse_error: no element "xvimagesink" (1)

Try changing xvimagesink to autoimagesink, or install whatever package contains gstxvimagesink.so.

Ok, I've reinstalled media-libs/gst-plugins-base with USE X and now it shows this:

https://i.imgur.com/A3gHrud.png

Actually I see same picture when I share my screen in firefox/webrtc. Perhaps this is due to the 4k display or fractional scaling.

Looks like a stride issue; could you open a bug report on https://gitlab.gnome.org/GNOME/issues/new and include that screenshot, as well as software versions and hardware details?

@jadahl, done https://gitlab.gnome.org/GNOME/mutter/-/issues/1646

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