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Ryde Player provides a on screen interface and video player for Longmynd compatible tuners.

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Ryde Player

This is the player and user interface application as part of the BATC ryde project. It allows the control of Longmynd compatible tuners using an IR remote control handset and on screen display on a Raspberry Pi 4.

The software is designed and tested on a Raspberry Pi 4 although it will likely run on older hardware this is unsupported. Primary target tuner hardware is the BATC MiniTiouner V2 although it should work with any Longmynd compatible hardware although some features may not be supported.

Install

Install packaged dependencies:

sudo apt-get install python3-pygame python3-vlc python3-yaml python3-evdev python3-pil vlc-plugin-base python3-librtmp

Install pyDispmanx driver from https://github.com/eclispe/pyDispmanx and ensure the .so file is in your PYTHONPATH

Install Longmynd. Currently recommending that the BATC fork is used: https://github.com/BritishAmateurTelevisionClub/longmynd

Install CombiTunerExpress. CombiTunerExpress is proprietary and only available as a binary.

Config Files

A complete sample YAML config file is provided as config.sample.yaml, this contains all currently configurable options. If some options are omitted from the config file then internal defaults will be used.

Config file options

  • configRev The config format revision of this file, if present but wrong the file will not load, if missing file will load with warning. Current revision is 3

  • playerID This is an ID string for this player, if no ID is specified a unique one is generated based on the hardware serial number. It is recommended to put quotes around the ID.

  • sources This section contains the source specific confgs

    • LONGMYND This section defines the paths and other settings for your Longmynd installation
      • binpath path to the Longmynd binary.
      • mediapath path to Longmynd's media FIFO, this will be auto-created if it doesn't exist.
      • statuspath path to Longmynd's status FIFO, this will be auto-created if it doesn't exist.
      • tstimeout TS timeout in ms, passed to longmynd with -r, see longmynd manual for more details.
    • COMBITUNER This section defines the paths and other settings for your CombiTuner installation
      • binpath path to the CombiTuner binary.
      • mediapath path to CombiTuner's media FIFO, this will be auto-created if it doesn't exist.
  • bands

    • Name of the band, you may have to put it in double quotes " if you want to use names with various caracters such as : in it. It is recommended that you add an anchor if you need to reference the band later, e.g. "LNB Low": &bandlnblow
      • source The name of the signal source type, the other options in the band only apply for certain sources, see options below for details. Currently supports LONGMYND, COMBITUNER or RTMPSTREAM
      • lofreq LO frequency value in kHz. Currently supports LONGMYND or COMBITUNER
      • loside Select either HIGH or LOW when using the difference mixing product where the LO is above or below the RF frequency respectively or SUM if using the sum mixing product. Currently supports LONGMYND or COMBITUNER
      • pol Band polarity, selects bias voltage. Choose from NONE, HORIZONTAL or VERTICAL. Supported sources: LONGMYND
      • port Band input port. Choose from TOP or BOTTOM. Supported sources: LONGMYND
      • domain Band RTMP server domain e.g. rtmp.batc.org.uk. Supported sources: RTMPSTREAM
      • rtmpapp Band RTMP server app name, often the directory from the URL, e.g. live. Supported sources: RTMPSTREAM
      • networkTimeout Band RTMP network timeout in seconds. Supported sources: RTMPSTREAM
      • networkTimeoutInit Band RTMP network initialisation timeout in seconds, likely needs to be larger than networkTimeout. Supported sources: RTMPSTREAM
      • gpioid Band GPIO ID, valid values are 0-7.
  • presets

    • Name of the preset, following the same naming rules as for bands above. supported options vary depending on the source specified in the band, see indigidual options for details. It is also recommended you add an anchor to a preset to use as the default also similar to bands above, e.g. "QO-100 Beacon": &presetdefault
      • band Preset band, its recommended to use an alias to a band in the band library, e.g. band: *bandlnblow
      • freq Preset frequency to tune, this can either be a single frequency or if using source LONGMYND a list of frequencies to enable frequency scanning. Supported sources: LONGMYND or COMBITUNER
      • sr Preset symbol rate in kSps, this can either be a single symbol rate or a list of symbol rates to enable symbol rate scanning. Supported sources: LONGMYND
      • bw Preset bandwidth in kHz. Supported sources: COMBITUNER
      • streamname Preset RTMP stream name e.g. oscar100net. Supported sources: RTMPSTREAM
  • default

    • Initial settings, its recommended to use an alias to a preset in the preset library, e.g. default: *presetdefault
  • ir This section defines the IR handset behaviour.

    • repeatFirst The time to wait before beginning to repeat an IR events in ms.
    • repeatDelay The time between repeats once repeating has begun in ms.
    • repeatReset How long to wait with no IR signals before requiring repeatFirst again in ms.
    • libraryPath Path to the directory containing the handset library files, see the Handset Configuration sestion for the library format
    • handsets A list of handset names to load from the library
  • gpio This section defines the pins and other options for interacting with the Raspberry Pi GPIO.

    • repeatFirst The time to wait before beginning to repeat an GPIO button press event in ms.
    • repeatDelay The time between repeats once repeating has begun in ms.
    • rxGood The BCM pin number to output the reciver locked indication to. For example to output the signal on pin 7 set this to 4.
    • buttons A map of button names to BCM pin numbers.
    • switches Container for switch event to BCM pin number mappings.
      • highgoing A map of high going events to BCM pin numbers.
      • lowgoing A map of low going events to BCM pin numbers.
    • band A list of BCM pin numbers to use to output band ID, starting with LSB
  • osd This section contains the configuration for the on screen display

    • timers Contains deactiate timers for various triggers in seconds, 0 disables the initial event, null disables the auto deactivate

      • USERTRIGGER Activate triggered by user pressing select button
      • PROGRAMTRIGGER Activated when a new or different signal is received
    • active Contains a list of modules and their configurations for when the OSD is active. Include any modules from the list below that should be displayed in this mode.

      • MUTE Displays a mute icon when the player is muted. Set value to null for default size and location, use all sub elements to set size and location.
        • datum Where to measure the new location relative to. Options: TL Top Left, TC Top Centre, TR Top Right, CR Centre Right, CC Centre both, CL Centre Left, BL Bottom Left, BC Bottom Centre or BR Bottom Right.
        • x The fraction of the display height the left/right (depending on datum) of the module is from the left/right of the display, valid values 0-1 for edges or -0.5 to 0.5 for centres.
        • y Same as for x but what fraction of the display height is the top/bottom (depending on datum).
        • w The width of the module as a fraction of the display height, valid values 0-1.
        • x Same as for w but for module height.
      • VOLUME Displays the currently set output volume.
      • SIGLEVEL Varies depending on source. For LONGMYND displays the MER of the current received signal. For COMBITUNER displays the SNR of the current received signal in dB. Size/location configuration the same as for MUTE.
      • REPORT Varies depending on source. For LONGMYND displays the difference between the MER and the minimal viable MER for the current modulation and FEC. For COMBITUNER displays the SQI as a percentage. Size/location configuration the same as for MUTE.
      • POWERLEVEL Only works with LONGMYND. It displays an approximate imput signal strength in dBm. Indicated power should be between -70 and -65dBm with no advantage seen for higer power. Size/location configuration the same as for MUTE.
      • PROGRAM Displays the service, provider, preset name, modulation type and transport stream PID details for the current signal, size/location configuration the same as for MUTE.
      • FREQ Varies slightly depending on source. For LONGMYND displays the actual frequency that is being received. For COMBITUNER displays the requested freqency only as reported by combituner.
      • BW Varies slightly depending on source. For LONGMYND displays the actual symbol rate that is being received in kSps. For COMBITUNER displays the requested bandwidth only as reported by combituner.
      • PLAYERID Displays the current player ID.
    • inactive The same as the active list but for when the OSD is inactive.

  • network This section contains the network control configuration

    • bindaddr The address of the local network interface use or '' to use all interfaces
    • port The TCP port number to use
  • watchdog This section contains the source watchdog configuration, it can be populated as below or set to null to disable the watchdog.

    • minRestartTime Initial time to wait after source unload before retrying, must be greater than 0 and not more than maxRestartTime.
    • maxRestartTime Maximum time to wait after source unload before retrying, must be not less than minRestartTime.
    • startupDelay Time to wait before the first restart after watchdog startup, prevents false restarts during player startup.
    • backoffRate How much to multiply the wait time by for each failed restart, must be at least.
  • watchdogService This section contains the watchdog servicing configuration, it can be populated as below or set to null to disable servicing the watchdog

    • ```serviceInterval`` Time to wait between touching the watchdog PID file, must be greater than 0.
    • pidPath The path of the watchdog file or directory. If a directory is provided a default filename will be used. The file will be auto-created if it doesn't exist.
  • shutdownBehavior The default shutdown option when the power button is double pressed. Choose from APPSTOP or APPREST to stop the player or restart the player respectively.

  • audio This section contains audio configuration options

    • muteOnStartup Set the default mute status to use when starting the player
    • volumeOnStartup Set the default volume level to use when starting the player in %
    • volumeStep Set the step size to use when adjusting the volume level in %
    • enableMenu Enable a menu item to adjust mute and volume, designed for when dedicated buttons are unavailable.
  • debug Debug options, for advanced users, do not rely on these, they may go away without notice

    • enableMenu Enable the debug menu entry
    • autoplay Auto play the stream on lock, should be set to True.
    • disableHardwareCodec Disable hardware decoder in VLC, recommend setting to True, uses more CPU but is more reliable at decoding.
    • useFTfont Use freetype font rendering adapter, supports emoji better but may cause memory leak so not recommended.

Handset Configuration

To configure a handset you need to add the handset configuration file to the handset library directory and add the filename (without the .yaml extension) to the main config file. Currently you also need to activate the driver listed in the handset file manually using the instructions in the Manual driver activation section.

Handset file options

A complete example handset file is available as handset.sample.yaml

  • name The name of the new handset, this should be meaningful and unique
  • driver The name of the driver used by this handset
  • buttons A map of button names to scan codes

Manual driver activation

If you know which driver you need it can be enabled with sudo ir-keytable -p <driver name>. Common values include rc-5, rc-6 and nec, a full list can be seen by running ir-keytable. If you are unsure you can enable all drivers with sudo ir-keytable -p all although this is not recommended as a permanent solution due to the risk of code conflicts.

New handset setup procedure

Once you have the correct driver setup you should be able to see the IR codes when you run ir-keytable -t and press buttons on the handset you should see something like this:

54132.040051: lirc protocol(nec): scancode = 0x40
54132.040074: event type EV_MSC(0x04): scancode = 0x40
54132.040074: event type EV_SYN(0x00).

Now press each button you wish to map on the handset and add the scancode to the new handset file. To access the core functionality you need to add at least the core 5 codes, UP or DOWN, LEFT or RIGHT, SELECT, BACK and MENU for each remote. The full list of supported codes is available in the sample handset file, it is recommended that you map all codes that are supported by your handset.

Network Interface

The interface uses TCP sockets with JSON payloads, all requests and responses consist of a JSON object. All requests must contain a minimum of a request attribute string. All responses will contain a minimum of a success attribute boolean, if there is an error an error attribute string will be present.

The network interface is disabled by default and is only enabled if a bind address is specified in the config file. A very basic sample client is provided in networktest.py.

getBands

The getBands request returns a bands attribute object containing the bands in the band library using the same format as the config file.

setTune

The setTune request accepts a tune attribute object containing a preset in the same format as the config file. The band attribute of the preset is in the same format as returned by the getBands request.

setMute

The setMute request accepts a mute attribute boolean for the new mute state.

sendEvent

The sendEvent request accepts an event attribute string containing the button event to trigger.

debugFire

The debugFire request accepts a function attribute string containing the name of the debug function, these are shown in the UI debug menu.

Run

With both pyDispmanx and rydeplayer in the current directory or your PYTHONPATH and optionally a config.yaml in the current directory run:

python3 -m rydeplayer

You can also specify a config file path at the commandline:

python3 -m rydeplayer ~/myconfig.yaml

License

Ryde Player provides a on screen interface and video player for Longmynd compatible tuners.

Copyright (C) 2020 Tim Clark

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see https://www.gnu.org/licenses/.

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