Removes development scratch that belonged to the Windows port and has no
purpose on the Linux/Pi branch. 39 tracked files removed; everything is
recoverable from the Windows-Player branch.
Removed
-------
- working_files/ (29 files) - dev-era scratch: install.sh.bak, the superseded
get_playlists.py (v1, replaced by get_playlists_v2.py), one-off test_*.py
probes, MIGRATION_GUIDE.md, INVESTIGATION_RESULTS.md. Also held real server
captures (server_response_debug.json contained player_id, player name and a
playlist) which should not be in the repository at all.
- documentation/ (5 files) - all described the Windows-era HTTPS integration.
- "python version" - contained Python 3.12.9, the Windows build interpreter.
The Pi runs 3.13.5.
- test_edited_media_upload.py - parentless debug script, referenced by nothing.
- .display-keepalive.sh, .keep-screen-alive.sh, .wait-for-display.sh - orphan
X11 helpers referenced by nothing; superseded by linux/linux_display.py.
Kept deliberately
-----------------
- .video-optimization.sh, .run-background.sh, .start-player-cron.sh -
referenced by install.sh.
- repo/python-wheels/ (58 MB of aarch64 cp313 wheels) - the offline install set.
- .venv/ is gitignored; runtime caches (.kiosk-profile, .kivy), logs, media and
the playlist cache are regenerated automatically and stay ignored.
Also fixed a stale reference to the removed documentation/ directory in
linux/development-track.md, and recorded the above there.
Verified after removal: all modules under src/ import cleanly from an unrelated
working directory, all remaining shell scripts pass `bash -n`, and the running
player was unaffected (correct: it had already loaded its code).
Replaces the Windows port with a Raspberry Pi / Linux implementation on
Raspberry Pi OS "Trixie" (Debian 13, aarch64, Wayland/labwc). The Windows
code is removed here but preserved on the Windows-Player branch.
Entry point
-----------
linux/run_linux.py replaces windows/run_win.py. src/main.py stays
platform-neutral; all Pi-specific behaviour is injected from linux/.
Five bugs that prevented the port (all measured on real hardware)
----------------------------------------------------------------
1. Kivy's PyPI wheel bundles an SDL2 built WITHOUT the wayland driver, so
no window could be created (Trixie has no X server). linux/fix_kivy_sdl2.sh
symlinks the system SDL2 over the bundled filename.
2. SDL2 requires WAYLAND_DISPLAY to be *set* - the socket alone is not enough,
unlike wlopm. This broke every systemd/cron/autostart launch.
linux_display.ensure_session_environment() detects and exports it.
3. Kivy's Clock resolves callbacks via func.__name__; a patch assigned under a
different name crashed the player ~20s after a successful start.
4. The inherited signal_screen_activity() shelled out to tvservice, xdotool and
ydotool - none exist on Trixie - and mis-escaped 'wlopm --on \*', so the
display blanked after 10 minutes.
5. The launchers ran src/main.py directly, bypassing every platform patch and
resolving the data directory one level too high.
Web links
---------
- --ozone-platform-hint=auto does NOT fall back to Wayland on Chromium 152; it
aborts. The platform is now chosen explicitly.
- The keyring password prompt is suppressed via the ENVIRONMENT, not the flags:
launch_env() strips DBUS_SESSION_BUS_ADDRESS for the child so Chromium cannot
reach gnome-keyring-daemon.
- Teardown kills the whole process group (needs start_new_session=True);
previously it silently fell back to terminate() and orphaned children.
Video normalisation
-------------------
A 4K video cannot play on a Pi 4: ffpyplayer decodes in software, measured at
0.90x realtime (1080p is 3.03x). Oversized media is downscaled to 1920x1080 at
sync time using the hardware h264_v4l2m2m encoder (~31s for an 18s clip),
triggered by resolution only so already-playable files are untouched.
src/media_state.py owns the shared on-disk contract: a .kiwy-converting marker
makes the player skip the item while it is being rebuilt, then the converted
file is played instead. If nothing is playable at all (a single-item playlist
whose only video is converting), the player loops the intro video rather than
leaving a blank screen.
Also fixed
----------
- network_monitor: replaced netsh/ifconfig/dhclient with nmcli (Trixie uses
NetworkManager; ifconfig and dhclient are not even installed).
- Removed the Windows-only focus keeper/guardian from main.py.
- main.py: duplicate SDL_AUDIODRIVER setdefault (a silent no-op); Settings
"Test connection" now uses tempfile.gettempdir().
- config/app_config.json: credentials blanked so a fresh clone runs the
first-run setup flow.
Verification
------------
linux/test_media_state.py 18/18, test_linux_patches.py 21/21,
test_linux_browser_flags.py 27/27. Verified live against a real DigiServer:
image -> weblink -> image -> video with correct durations, zero leaked Chromium
processes, and no throttling over a 10 minute monitored run.
ske087