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Plugins

tv.ivtv_xine_tv

File: tv/plugins/ivtv_xine_tv.py

Description

Plugin to watch live tv with xine. The plugin supports:

Requirements:

The following software must be installed:

Configuration:

The following items should be configured in local_conf.py:

Freevo General Config Items

Plugin Specific Config Items

Plugin Specific Events

The following additional events can be defined: 

   1  # go back to the previous viewed channel
   2  EVENTS['tv']['SOME_LIRC_CMD'] = Event('POPCHANNEL')
   3 
   4  # show program info
   5  EVENTS['tv']['SOME_LIRC_CMD'] = Event('TOGGLE_OSD')
   6 
   7  # normal seek forward/backward by 1 second
   8  EVENTS['tv']['SOME_LIRC_CMD'] = Event(SEEK, arg=-1)
   9  EVENTS['tv']['SOME_LIRC_CMD'] = Event(SEEK, arg=+1)

Timeshift Filemask

The LIVE TV functionality requires a large buffer on disk where the TV stream is being recorded while watching. 

   1  # This specifies the path and filemask that xine uses for
   2  # timeshifting. File can get quite big (several gigabytes)
   3  XINE_TV_TIMESHIFT_FILEMASK = '/local/tmp/xine-buf-!/local/saved/!20'

Note: the format is 'a!b!c', where: a = prefix (with path) for temporary file buffers b = prefix (with path) for saved recordings c = number of file buffers (200MB each) to use

The path for saved recordings must be on the same partition as the path for temporary file buffers. If the save path is empty then the saved files will be stored in the path for temporary files.

STOP Confirmation

The STOP event will cancel the history of the TV stream. To prevent that this happens by accident, a confirmation can be requested. 

   1  # Stop confirmation: press STOP twice to return to menu
   2  XINE_TV_CONFIRM_STOP = True

Progressive Seek

If progressive is enabled, then seeking in the TV stream will speed up by 'increment' seconds every 'threshold' seconds. Note, set the starting seek event to 1 second to allow fine control. 

   1  # This enables the progressive seek feature. The speed
   2  # for seeking (fast forward and rewind) is increased
   3  # automatically. The speed is increased every [THRESHOLD]
   4  # seconds in steps of [INCREMENT] secnds.
   5  XINE_TV_PROGRESSIVE_SEEK = True
   6  XINE_TV_PROGRESSIVE_SEEK_THRESHOLD = 2
   7  XINE_TV_PROGRESSIVE_SEEK_INCREMENT = 5

Live Record

If live record is enabled, then the RECORD button will cause the current show to be recorded permanently. Freevo will set marks in the video stream when a new show starts (according to the program guide) and when the channel is changed. Recording will stop automatically (1) on a channel change, (2) when a new show starts according to the program guide or (3) when returning to the program guide. 

   1  XINE_TV_LIVE_RECORD = True

Note: the performance of channel changes will noticably suffer on slow (<1GHz) machines when live recording is enabled. Using a fast disk and a fast filesystem will help.

Input Real Channels

When pressing numbers on the remote control, Freevo will jump to a different channel, an index in the TV_CHANNELS array by default. Set this to true to use real (cable) channel numbers instead. 

   1  XINE_TV_INPUT_REAL_CHANNELS = False

Indent OSD

When using overscan mode, the OSD text in xine may be displayed too far to the left. Set this to indent the text somewhat to the right. 

   1  XINE_TV_INDENT_OSD = False

Video Groups Setup Example

The following shows an example of a configuration for a 1-tuner PVR 250 card and adds S-VIDEO and Composite Inputs. Note that the audio input is selected automatically by ivtv. 

   1  TV_VIDEO_GROUPS = [
   2          VideoGroup(
   3              vdev='/dev/video0',
   4              adev=None,
   5              input_type='Tuner 1',
   6              tuner_norm='pal',
   7              tuner_chanlist='europe-west',
   8              desc='Regular Cable',
   9              group_type='ivtv',
  10              record_group = None
  11          ),
  12          VideoGroup(
  13              vdev='/dev/video0',
  14              adev=None,
  15              input_type='S-Video 1',
  16              tuner_type='external',
  17              desc='S-Video Input',
  18              group_type='ivtv',
  19              record_group = None
  20          ),
  21          VideoGroup(
  22              vdev='/dev/video0',
  23              adev=None,
  24              input_type='Composite 2',
  25              tuner_type='external',
  26              desc='Composite Input',
  27              group_type='ivtv',
  28              record_group = None
  29          ),
  30  ]
  31 
  32  TV_CHANNELS = [
  33      ('ned1',        'NED 1',                'C22', '', 0),
  34      ...
  35      ('natg',        'National Geographic',  'C47', '', 0),
  36      ...
  37      ('svideo',      'S-Video Input',        'EX1', '', 1),
  38      ('composite',   'Composite Input',      'EX2', '', 2),
  39  ]

Configurable items in the xine config file

The xine config file is located in '~/.xine/config'.

Items that change the OSD text appearance: 

   1  gui.osd_enabled    (set this to '1')
   2  gui.osd.fontsize   (set this to '28' or '32' for a TV setup)
   3  gui.osd.fontcolor  (choose one: white, yellow, green, cyan)
   4  gui.osd.background (set this to '1' for better readibility)

Owners of VIA EPIA boards might want to set the following: 

   1  video.device.unichrome_cpu_save
   2 
   3 
   4 Refer to the config file for further explanation.

Configuration

Refer to the config file for further explanation.

Plugin configuration variables:

TV_CHANNELS: TV Channels Default: None

MIXER_MAJOR_CTRL: Main Mixer control (mandatory) Default: None

MIXER_VOLUME_TV_IN: TV Line In Volume Default: 50

XINE_COMMAND: xine command Default: '/usr/bin/xine'

XINE_ARGS_DEF: xine default arguments Default: '-D -pfhq'

XINE_TV_VO_DEV: xine video output device Default: 'xv'

XINE_TV_AO_DEV: xine audio output device Default: 'oss'

XINE_TV_TIMESHIFT_FILEMASK: xine time shift parameters Default: '/tmp/xinebuf'

XINE_TV_CONFIRM_STOP: require a stop confirmation Default: True

XINE_TV_PROGRESSIVE_SEEK: use progressive seek mode Default: True

XINE_TV_PROGRESSIVE_SEEK_THRESHOLD: progressive seek mode threshold (seconds) Default: 2

XINE_TV_PROGRESSIVE_SEEK_INCREMENT: progressive seek mode steps (seconds) Default: 5

XINE_TV_INPUT_REAL_CHANNELS: handle direct input numbers as real channels Default: False

XINE_TV_LIVE_RECORD: enable recording (make permanent) of live video Default: True

XINE_TV_INDENT_OSD: indent OSD text Default: False

The plugin is loaded with the following settings: type=default, level=10, args=None

2014-02-15 05:47