some notes
This commit is contained in:
efim
parent
73316581a0
commit
a7c31193bc
|
|
@ -0,0 +1,174 @@
|
||||||
|
;(load (sb-ext:posix-getenv "ASDF"))
|
||||||
|
(asdf:load-system 'dbus)
|
||||||
|
|
||||||
|
(defpackage
|
||||||
|
#:screencasting
|
||||||
|
(:use #:cl)
|
||||||
|
(:export call-with-all-predefined))
|
||||||
|
(in-package #:screencasting)
|
||||||
|
|
||||||
|
;; https://flatpak.github.io/xdg-desktop-portal/docs/doc-org.freedesktop.portal.ScreenCast.html
|
||||||
|
(defconstant +screen-cast-interface+ "org.freedesktop.portal.ScreenCast")
|
||||||
|
(defconstant +request-interface+ "org.freedesktop.portal.Request")
|
||||||
|
|
||||||
|
;; some iolib tutorial https://pages.cs.wisc.edu/~psilord/blog/data/iolib-tutorial/tutorial.html
|
||||||
|
;; i hoped it would help me understand the 'publish-events'
|
||||||
|
|
||||||
|
;; i'm not sure how to do interactive calls,
|
||||||
|
;; since maybe i need to "publish objects"
|
||||||
|
;; and that means the callbacks are set in stone?
|
||||||
|
;; i guess i could try to do a Notification call in the callback on screenshot request?
|
||||||
|
|
||||||
|
(defun send-notification (bus message)
|
||||||
|
(dbus:with-introspected-object (notification bus "/org/freedesktop/Notifications" "org.freedesktop.Notifications")
|
||||||
|
(notification "org.freedesktop.Notifications" "Notify"
|
||||||
|
"Test" 0 "" "Test" (or message "This is a test; I repeat, this is a test.") '() '() -1)))
|
||||||
|
|
||||||
|
;; well, i suppose i would need to open multiple connections?
|
||||||
|
;; let's do something like this https://github.com/Lautaro-Garcia/cl-notify/blob/main/src/dbus-protocol.lisp#L27
|
||||||
|
;; (defmacro with-dbus-method-inovaction ((result-var method &rest args) &body body)
|
||||||
|
;; (alexandria:with-gensyms (bus notifications-object)
|
||||||
|
;; `(dbus:with-open-bus (,bus (dbus:session-server-addresses))
|
||||||
|
;; (dbus:with-introspected-object (,notifications-object ,bus "/org/freedesktop/Notifications" "org.freedesktop.Notifications")
|
||||||
|
;; (let ((,result-var (,notifications-object "org.freedesktop.Notifications" ,method ,@args)))
|
||||||
|
;; ,@body)))))
|
||||||
|
|
||||||
|
;; but. this supposes result-var being a resulting value
|
||||||
|
;; and i'd want to what? pass in a callback to register?
|
||||||
|
|
||||||
|
;; alright, let's have function startup new bus connection for each call
|
||||||
|
;; but then try to do these multiple calls
|
||||||
|
|
||||||
|
(defun call-screencast-method (method-name params)
|
||||||
|
(handler-case
|
||||||
|
(dbus:with-open-bus (bus (dbus:session-server-addresses))
|
||||||
|
(let*
|
||||||
|
((requester-name (cl-ppcre:regex-replace "\\." (dbus:bus-name bus) "_" :start 1))
|
||||||
|
(request-name "yayay")
|
||||||
|
(resp-path (concatenate 'string "/org/freedesktop/portal/desktop/request/"
|
||||||
|
requester-name
|
||||||
|
"/"
|
||||||
|
request-name)))
|
||||||
|
(dbus:define-dbus-object request-object
|
||||||
|
(:path resp-path))
|
||||||
|
|
||||||
|
(dbus:define-dbus-signal-handler (request-object response) ((id :uint32) (results (:ARRAY (:DICT-ENTRY :STRING :VARIANT))))
|
||||||
|
(:interface +request-interface+)
|
||||||
|
(format t "Got response ~S with results ~S~%" id results)
|
||||||
|
(format t "before sending notification")
|
||||||
|
(send-notification bus "yayaya from the first response")
|
||||||
|
(format t "ending signal handler")
|
||||||
|
(force-output))
|
||||||
|
|
||||||
|
(format T "Will try to listen on ~A~%" resp-path)
|
||||||
|
(format T "Bus connection name ~A~%" (dbus:bus-name bus))
|
||||||
|
(dbus:add-match bus :type :signal
|
||||||
|
:interface +request-interface+)
|
||||||
|
(dbus:with-introspected-object (desktop bus "/org/freedesktop/portal/desktop" "org.freedesktop.portal.Desktop")
|
||||||
|
(desktop +screen-cast-interface+ method-name ; "CreateSession"
|
||||||
|
params
|
||||||
|
;; '(("handle_token" ((:string) "yayay"))
|
||||||
|
;; ("session_handle_token" ((:string) "hohoyyy")))
|
||||||
|
))
|
||||||
|
(dbus:publish-objects bus '(request-object) )))
|
||||||
|
(end-of-file ()
|
||||||
|
:disconnected-by-bus)))
|
||||||
|
|
||||||
|
'(call-screencast-method "CreateSession"
|
||||||
|
'(("handle_token" ((:string) "yayay"))
|
||||||
|
("session_handle_token" ((:string) "hohoyyy"))))
|
||||||
|
|
||||||
|
;; let's define ALL beforehand?
|
||||||
|
(defun call-with-all-predefined ()
|
||||||
|
(handler-case
|
||||||
|
(dbus:with-open-bus (bus (dbus:session-server-addresses))
|
||||||
|
(let*
|
||||||
|
((requester-name (cl-ppcre:regex-replace "\\." (dbus:bus-name bus) "_" :start 1))
|
||||||
|
(request-create-session-name "createSessionReq")
|
||||||
|
(resp-path (concatenate 'string "/org/freedesktop/portal/desktop/request/"
|
||||||
|
requester-name
|
||||||
|
"/"
|
||||||
|
request-create-session-name))
|
||||||
|
(request-select-sources "selectSourcesReq")
|
||||||
|
(select-sources-resp-path (concatenate 'string "/org/freedesktop/portal/desktop/request/"
|
||||||
|
requester-name
|
||||||
|
"/"
|
||||||
|
request-select-sources))
|
||||||
|
(request-start "startReq")
|
||||||
|
(start-resp-path (concatenate 'string "/org/freedesktop/portal/desktop/request/"
|
||||||
|
requester-name
|
||||||
|
"/"
|
||||||
|
request-start))
|
||||||
|
(session-handle-hardcoded "yayay")
|
||||||
|
(session-handle-path (concatenate 'string "/org/freedesktop/portal/desktop/session/"
|
||||||
|
requester-name
|
||||||
|
"/"
|
||||||
|
session-handle-hardcoded)))
|
||||||
|
(dbus:define-dbus-object request-object
|
||||||
|
(:path resp-path))
|
||||||
|
|
||||||
|
(dbus:define-dbus-signal-handler (request-object response) ((id :uint32) (results (:ARRAY (:DICT-ENTRY :STRING :VARIANT))))
|
||||||
|
(:interface +request-interface+)
|
||||||
|
(format t "Got response ~S with results ~S~%" id results)
|
||||||
|
(send-notification bus "yayaya from the first response")
|
||||||
|
(format t "About sto send SelectSources with path ~S~%" session-handle-path)
|
||||||
|
(force-output)
|
||||||
|
(dbus:with-introspected-object (desktop bus "/org/freedesktop/portal/desktop" "org.freedesktop.portal.Desktop")
|
||||||
|
(desktop +screen-cast-interface+ "SelectSources"
|
||||||
|
session-handle-path ; hardcoded session-handle
|
||||||
|
`(("handle_token" ((:string) ,request-select-sources)))))
|
||||||
|
(format t "Still first callback, after calling SelectSources~%")
|
||||||
|
(force-output))
|
||||||
|
|
||||||
|
(dbus:define-dbus-object select-sources-request-obj
|
||||||
|
(:path select-sources-resp-path))
|
||||||
|
|
||||||
|
(dbus:define-dbus-signal-handler (select-sources-request-obj response) ((id :uint32) (results (:ARRAY (:DICT-ENTRY :STRING :VARIANT))))
|
||||||
|
(:interface +request-interface+)
|
||||||
|
(format t ">> Got inside of SelectSources callback ~A ~A~%" id results)
|
||||||
|
(dbus:with-introspected-object (desktop bus "/org/freedesktop/portal/desktop" "org.freedesktop.portal.Desktop")
|
||||||
|
(desktop +screen-cast-interface+ "Start"
|
||||||
|
session-handle-path
|
||||||
|
"parent-window"
|
||||||
|
`(("handle_token" ((:string) , request-start)))))
|
||||||
|
(format t ">> Still inside SelectSources callback, after calling Start~%")
|
||||||
|
(force-output))
|
||||||
|
|
||||||
|
(dbus:define-dbus-object start-request-obj
|
||||||
|
(:path start-resp-path))
|
||||||
|
|
||||||
|
(dbus:define-dbus-signal-handler (start-request-obj response) ((id :uint32) (results (:ARRAY (:DICT-ENTRY :STRING :VARIANT))))
|
||||||
|
(:interface +request-interface+)
|
||||||
|
(format t ">> Got inside of Start callback ~A ~A~%" id results))
|
||||||
|
|
||||||
|
(format T "Will try to listen on ~A~%" resp-path)
|
||||||
|
(format T "Bus connection name ~A~%" (dbus:bus-name bus))
|
||||||
|
(dbus:add-match bus :type :signal
|
||||||
|
:interface +request-interface+)
|
||||||
|
(dbus:with-introspected-object (desktop bus "/org/freedesktop/portal/desktop" "org.freedesktop.portal.Desktop")
|
||||||
|
(desktop +screen-cast-interface+ "CreateSession"
|
||||||
|
`(("handle_token" ((:string) ,request-create-session-name))
|
||||||
|
("session_handle_token" ((:string) ,session-handle-hardcoded)))))
|
||||||
|
(dbus:publish-objects bus)))
|
||||||
|
(end-of-file ()
|
||||||
|
:disconnected-by-bus)))
|
||||||
|
|
||||||
|
|
||||||
|
;; ok
|
||||||
|
;; >> Got inside of Start callback 0 ((streams
|
||||||
|
;; ((43
|
||||||
|
;; ((position (0 0)) (size (1920 1080)))))))
|
||||||
|
;; interesting. now what do do with the streams?
|
||||||
|
;; An array of PipeWire streams. Each stream consists of a PipeWire node ID (the first element in the tuple, and a Vardict of properties.
|
||||||
|
;; ok, now i need to figure out how
|
||||||
|
;; yeah, nix shell nixpkgs#qpwgraph
|
||||||
|
;; with this tool i see new 'out' node, maybe i can even already connect to it with
|
||||||
|
;; some program?
|
||||||
|
;; yes. enefedov@LLF33A87M:~/Documents/personal/learning-screen-share$ gst-launch-1.0 pipewiresrc path=43 ! videoconvert ! autovideosink
|
||||||
|
|
||||||
|
;; cool.
|
||||||
|
;; now i want to have a window with this video stream created by my program
|
||||||
|
;; this is new level of "i have no idea where to go"
|
||||||
|
;; https://github.com/death/dbus/issues/31
|
||||||
|
;; asked my question about multiple async dbus requests
|
||||||
|
|
||||||
46
notes.org
46
notes.org
|
|
@ -534,6 +534,9 @@ Backtrace:
|
||||||
#+end_src
|
#+end_src
|
||||||
|
|
||||||
the source:
|
the source:
|
||||||
|
|
||||||
|
( in the git : https://git.sunshine.industries/efim/scratch-screen-share/src/commit/73316581a056a20e51dc36eb96673acfee7d90b0/gstreamer/capturing-frames.lisp )
|
||||||
|
|
||||||
#+begin_src lisp
|
#+begin_src lisp
|
||||||
;(load (sb-ext:posix-getenv "ASDF"))
|
;(load (sb-ext:posix-getenv "ASDF"))
|
||||||
(asdf:load-system 'cl-cffi-gtk)
|
(asdf:load-system 'cl-cffi-gtk)
|
||||||
|
|
@ -632,3 +635,46 @@ the source:
|
||||||
|
|
||||||
;(try-run)
|
;(try-run)
|
||||||
#+end_src
|
#+end_src
|
||||||
|
|
||||||
|
*** submitted
|
||||||
|
https://github.com/andy128k/cl-gobject-introspection/issues/102
|
||||||
|
|
||||||
|
** what's next?
|
||||||
|
i could try another library for gir bindings.
|
||||||
|
not sure whether that would help much, but yeah
|
||||||
|
|
||||||
|
or i could just try to replicate this in python
|
||||||
|
or maybe in go?
|
||||||
|
|
||||||
|
** whelp gir2cl is also on top of cl-gobject-introspection
|
||||||
|
huh.
|
||||||
|
let's set up a directory with go stuff? i guess
|
||||||
|
|
||||||
|
trying in separate directory
|
||||||
|
with https://github.com/linuxdeepin/go-gir
|
||||||
|
|
||||||
|
but more realistically
|
||||||
|
https://pkg.go.dev/github.com/go-gst/go-gst
|
||||||
|
|
||||||
|
this is very much different, but yeah.
|
||||||
|
let's go with appsink example
|
||||||
|
https://pkg.go.dev/github.com/go-gst/go-gst@v1.1.0/examples/appsink
|
||||||
|
|
||||||
|
for the go library to pick up gstreamer from nix shell
|
||||||
|
https://discourse.nixos.org/t/flakes-how-to-make-pkg-config-work-with-nix-shell/16305
|
||||||
|
it has to somehow be exposed via pkg-config
|
||||||
|
|
||||||
|
yes, adding pkg-config to shell works, nice
|
||||||
|
|
||||||
|
* [2024-08-24 Sat]
|
||||||
|
|
||||||
|
** ok, continuing with go thing. into what do i want to decode stuff?
|
||||||
|
well, the reported default format is
|
||||||
|
sample info: video/x-raw, width=(int)320, height=(int)240, framerate=(fraction)30/1, multiview-mode=(string)mono, format=(string)YV12, pixel-aspect-ratio=(fraction)1/1, interlace-mode=(string)progressive
|
||||||
|
http://www.avisynth.nl/index.php/FAQ_YV12
|
||||||
|
|
||||||
|
but maybe i want something else?
|
||||||
|
|
||||||
|
let's read docs on appsrc
|
||||||
|
https://github.com/go-gst/go-gst/tree/v1.1.0/examples/appsrc
|
||||||
|
|
||||||
|
|
|
||||||
Loading…
Reference in New Issue