doc:appunti:hardware:raspberrypi_micromediahub
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doc:appunti:hardware:raspberrypi_micromediahub [2017/12/24 06:31] – [Kodi] niccolo | doc:appunti:hardware:raspberrypi_micromediahub [2020/09/28 18:45] (current) – [Kodi] niccolo | ||
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* Joystick controller | * Joystick controller | ||
* LCD display 16x2 charaters | * LCD display 16x2 charaters | ||
+ | |||
+ | ====== Current consumption ====== | ||
+ | |||
+ | See **[[https:// | ||
+ | |||
+ | * **Raspberry Pi 3 Model B** | ||
+ | * 1GB RAM | ||
+ | * Typical bare-board active current consumption: | ||
+ | * Maximum total USB peripheral current draw: 1.2A | ||
+ | * Recommended PSU current capacity: 2.5A | ||
+ | * **Raspberry Pi 3 Model A+** | ||
+ | * 512MB LPDDR2 SDRAM | ||
+ | * Typical bare-board active current consumption: | ||
+ | * Maximum total USB peripheral current draw: Limited by PSU, board, and connector ratings only. | ||
+ | * **Toshiba Canvio Basics 1Tb** | ||
+ | * USB bus power (max. 900mA) | ||
====== Kodi ====== | ====== Kodi ====== | ||
Line 20: | Line 36: | ||
Kodi will not start automatically at boot, just execute **kodi-standalone** from the command line. | Kodi will not start automatically at boot, just execute **kodi-standalone** from the command line. | ||
- | **NOTICE**: Raspbian | + | **NOTICE**: Raspbian |
+ | * **[[http:// | ||
+ | * **[[http:// | ||
+ | |||
+ | The first repository provides **Kodi 17.1** as per Debian Stretch. The second repository provided **Kodi version 17.6** on December 2017, but it was upgraded to **Kodi version 18** on february 2019. So beware of what packages you are installing, respect the right dependencies and be carefull with upgrades. | ||
+ | |||
+ | Our current installation uses these versions: | ||
+ | |||
+ | ^ kodi | 2: | ||
+ | ^ kodi-bin | ||
+ | ^ kodi-eventclients-common | ||
+ | ^ kodi-eventclients-kodi-send | ||
+ | ^ kodi-peripheral-joystick | ||
+ | ^ libkodiplatform17: | ||
+ | |||
+ | To activate a joypad you have to go through **// | ||
===== Starting Kodi at Boot ===== | ===== Starting Kodi at Boot ===== | ||
Line 32: | Line 63: | ||
* Can perform **reboot** and **poweroff** from Kodi menu. | * Can perform **reboot** and **poweroff** from Kodi menu. | ||
- | So we want to execute **kodi-standalone** as **kodi** user, create | + | So we want to execute **kodi-standalone** as **kodi** user. Create |
< | < | ||
Line 43: | Line 74: | ||
Then we created a **systemd** unit file **/ | Then we created a **systemd** unit file **/ | ||
+ | |||
+ | < | ||
+ | [Unit] | ||
+ | Description = Kodi Media Center | ||
+ | |||
+ | # if you don't need the MySQL DB backend, this should be sufficient | ||
+ | After = systemd-user-sessions.service network.target sound.target | ||
+ | |||
+ | # if you need the MySQL DB backend, use this block instead of the previous | ||
+ | # After = systemd-user-sessions.service network.target sound.target mysql.service | ||
+ | # Wants = mysql.service | ||
+ | |||
+ | [Service] | ||
+ | User = kodi | ||
+ | Group = kodi | ||
+ | Type = simple | ||
+ | ExecStart = / | ||
+ | Restart = always | ||
+ | RestartSec = 15 | ||
+ | |||
+ | [Install] | ||
+ | WantedBy = multi-user.target | ||
+ | </ | ||
+ | |||
+ | To actually enable and start the service, run: | ||
+ | |||
+ | < | ||
+ | systemctl daemon-reload | ||
+ | systemctl enable kodi.service | ||
+ | systemctl start kodi.service | ||
+ | </ | ||
+ | |||
+ | Now we have to solve a problem: the unprivileged Kodi user cannot perform reboot and poweroff actions: as you can se the exit menu of Kodi shows only the **Exit** item. We need a piece of software: **policykit-1**. This package contains the framework which handles the authorizations, | ||
+ | |||
+ | < | ||
+ | apt-get install policykit-1 | ||
+ | </ | ||
+ | |||
+ | We created the file **/ | ||
+ | |||
+ | < | ||
+ | [Actions for kodi user] | ||
+ | Identity=unix-group: | ||
+ | Action=org.freedesktop.upower.*; | ||
+ | ResultActive=yes | ||
+ | ResultAny=yes | ||
+ | ResultInactive=no | ||
+ | </ | ||
+ | |||
+ | ===== Problem Decoding Webm (VP8 Encoded) Videos ===== | ||
+ | |||
+ | We got a severe problem trying to play some **.webm** video files: the audio starts but it freeze shortly, the video does not start at all. After that, all the Kodi interface was frozen and we need to reboot (ssh access still working). Into kodi.log we get the following error: | ||
+ | |||
+ | < | ||
+ | CMMALVideo:: | ||
+ | input port vc.ril.video_decode: | ||
+ | </ | ||
+ | |||
+ | To confirm that the video codec is VP8, we installed the **mediainfo** package an run the tool against the video; which actually uses the VP8 codec. The official **[[http:// | ||
+ | |||
+ | **[[https:// | ||
+ | |||
+ | < | ||
+ | start_x=1 | ||
+ | </ | ||
+ | |||
+ | See also the page **[[https:// | ||
+ | ===== Starting Kodi only if USB hard disk is present ===== | ||
+ | |||
+ | We keep all our media files (video, images, etc.) into an **USB hard disk**, connected through a powered USB hub. It can be possible that **the Raspberry Pi will be started without the disk attached**. In this case we want **no Kodi service** to be started. See **[[..: | ||
+ | |||
+ | ==== Web References ==== | ||
+ | |||
+ | * [[https:// | ||
+ | * [[https:// | ||
+ | * [[https:// | ||
+ | * [[https:// | ||
+ | * [[https:// | ||
+ | * [[http:// | ||
+ | |||
====== USB 3.0 VIA Labs Hub Problems ====== | ====== USB 3.0 VIA Labs Hub Problems ====== | ||
doc/appunti/hardware/raspberrypi_micromediahub.1514097080.txt.gz · Last modified: 2017/12/24 06:31 by niccolo