service rewrite

[Informatic]

• Configuration is now stored in config.json file in service directory - files are persisted between application upgrades.
• Autostart init.d script is now automatically symlinked into/removed from /var/lib/webosbrew/init.d on configuration save, depending on autostart configuration field. When piccap application is removed, a dangling symlink (which will not be executed on startup) will stay there, which is less problematic than copying over our script.
• /isRoot call will now attempt automatically running elevate-service on piccap service and exit immediately when succeeded (so that further luna calls will launch elevated service)
• /start call will return after hyperion-webos running for 1 second. If it fails in that time, an error will be reported with stdout/stderr of the process (simple debugging message). If hyperion-webos fails in runtime, it will be automatically restarted after 1 second.

• /start and /stop calls are indempotent - if hyperion-webos is already running they will return success.

  TODOs:

• [x] frontend: properly call all the endpoints in proper order
• [x] frontend: fixup configuration field names
• [x] frontend: fix running status reporting
• [ ] service: bundle/build new hyperion-webos
• [ ] service: rewrite in typescript, because why not
• [ ] service: add hyperion-webos logs call (this is slightly problematic since stdout is not line-buffered by default)
• [ ] update README regarding packaging (npm run build && npm run package && npm run deploy)

[Informatic]

Built with current hyperion-webos main branch (986d40afe2fee72709de9931a1a7e526e307492e): https://d.inf.re/b/416d2634b2eb7e8acc9d3a2d94131b42.ipk

Installing

1. Enable SSH Server in Homebrew Channel → Settings, Reboot
2. (Windows) Enable SSH Client component
3. Open terminal (cmd.exe/Terminal.app/whatever-you-use-on-linux) and connect over ssh: ssh root@TV_IP - enter alpine password (unless you set up ssh key authentication - you should now what to do)
4. Run:

   luna-send -i 'luna://org.webosbrew.hbchannel.service/install' '{"ipkUrl":"http://d.inf.re/b/416d2634b2eb7e8acc9d3a2d94131b42.ipk", "ipkHash":"3c3377618acbe8994185fa2528b93de1cf0d4f0edaa8aa74d1cd728bd6d624dd"}'

You should get something like this:

root@lgwebostv:~# luna-send -i 'luna://org.webosbrew.hbchannel.service/install' '{"ipkUrl":"http://d.inf.re/b/416d2634b2eb7e8acc9d3a2d94131b42.ipk", "ipkHash":"3c3377618acbe8994185fa2528b93de1cf0d4f0edaa8aa74d1cd728bd6d624dd"}'
{"statusText":"Downloading…","returnValue":true}
{"statusText":"Downloading…","progress":88.22780597826949,"returnValue":true}
{"statusText":"Downloading…","progress":100,"returnValue":true}
{"statusText":"Verifying…","returnValue":true}
{"statusText":"Installing…","returnValue":true}
{"returnValue":true,"statusText":"Finished.","finished":true}
{"serviceName":"org.webosbrew.hbchannel.service","returnValue":false,"errorCode":-1,"errorText":"org.webosbrew.hbchannel.service is not running."}

GM Blending

Alternatively, for a version with current libdile_vt + gm blending (UI layer) WIP branch:

luna-send -i 'luna://org.webosbrew.hbchannel.service/install' '{"ipkUrl":"http://d.inf.re/b/ba3340eb3f97bd4b3cbaa7fcc5d39758.ipk", "ipkHash":"14be5c195e410798b142533a396af826cdd04ade89517235080f03cd8295652f"}'

[PinkyJie]

Hi @Informatic , this is truly a great improvement, thanks! I had a try with this build (not GM blending one), the "auto-restart" does improve the stability a lot. And libdile_vt backend also improves the experience on HDMI, but unfortnately, HDMI capture still looks weird with a lot of green cross lines. Do you know the reason for that?

A Hyperion Live video scrrenshot for Youtube running on HDMI TV box.

[PinkyJie]

I also realised another performance issue, not sure if it's related to this thread.

After switching form lib_vt to libdile_vt, the FPS drops dramatically, I can see the LED color delay. Here is the screenshot for the FPS output.

FPS from lib_vt: (width: 192, height: 108)

FPS from libdile_vt: (width: 320, height: 240)

For libdile_vt it seems the width/height parameter doens't work, it will always be 320x240 for me. Here you can see even I manually pass 192x108, it still applies 320x240, maybe that's the reason why the FPS drops?

The steps I follow are:

# ssh to TV and cd to this folder
cd /media/developer/apps/usr/palm/services/org.webosbrew.piccap.service
# lib_vt backend
LD_LIBRARY_PATH=. ./hyperion-webos -b libvt -a 192.168.5.116
# libdile_vt backend
LD_LIBRARY_PATH=. ./hyperion-webos -b libdile_vt -a 192.168.5.116

[PinkyJie]

Also one more thing, is it better to provide an option to not show the "PicCap restarted" message? During my testing, it restarted very frequently sometimes, it's kind of disturbing the message kept popping up, especially when watching a movie.

[Informatic]

Superseded by #18