This tab is used to configure operation of the Digital Video Recorder. It is not used for scheduling or administration of individual recordings.

Configuration options:

DVR Behaviour

Media container
  Select the container format used to store recordings.
Cache scheme
  Select the cache scheme used to store recordings. Leave as "system" unless you have a special case for one of the others.
  Whenever you read or write data to the filesystems, the information is kept (cached) in memory for a while. This means that regularly-access files are available quickly without going back to the disc; it also means that there's a disconnect when writing between the write request (from the application) and the actual write itself (to the disc/storage) as changes are buffered to be written in one go.

Unknown
  A placeholder status, meaning that the configuration isn't properly set.
System
  Change nothing and rely on standard (default) system caching to behave as it normally would.
Do not keep
  Tell the system that you're not expecting to re-use the data soon, so don't keep it in cache. The data will still be buffered for writing. Useful e.g. in a RAM-limited system like a Pi (given that you're unlikely to be watching while recording, so data can be discarded now and read back from disc later).
Sync
  Tell the system to write the data immediately. This doesn't affect whether or not it's cached. Useful e.g. if you've a particular problem with data loss due to delayed write (such as if you get frequent transient power problems).
Sync + Do not keep
  A combination of last two variants above - data is written immediately and then discarded from cache.

DVR Log retention time (days)
  Time that Tvheadend will keep information about the recording in its internal database. Notice that the actual recorded file will not be deleted when the log entry is deleted.
Extra time before recordings (minutes)
  Specify the number of minutes to record before the events scheduled start time. Used to cope with small scheduling errors.
Extra time after recordings (minutes)
  Specify the number of minutes to record after the events scheduled stop time. Used to cope with small scheduling errors.
Episode duplicate detection
  If checked, broadcasts with matching title and matching non-zero episode number are considered duplicates.
EPG update window
  Maximum difference between event start times when the EPG event is changed. TVHeadend uses a fuzzy match logic (using title, start times, duration, episode) to check when the event was changed.
Post-processor command
  Command to run after finishing a recording. The command will be run in background and is executed even if a recording is aborted or an error occurred. Use the %e error formatting string to check for errors, the error string is "OK" if recording finished successfully.
  Support format strings:

  Format | Description | Example value
  --- | --- | ---
  %f | Full path to recording | /home/user/Videos/News.mkv
  %b | Basename of recording | News.mkv
  %c | Channel name | BBC world
  %C | Who created this recording | user
  %t | Program title | News
  %d | Program description | News and stories...
  %e | Error message | Aborted by user
  %S | Start time stamp of recording, UNIX epoch | 1224421200
  %E | Stop time stamp of recording, UNIX epoch | 1224426600

  Example usage: /path/to/ffmpeg -i %f -vcodec libx264 -acodec copy "/path/with white space/%b"
  You need to use quotes or escape white spaces if you want white spaces in an argument.

  Recording File Options

Recording system path
  Path to where Tvheadend will write recorded events. If components of the path does not exist, Tvheadend will try to create them.
File permissions
  The permissions to be set on the resultant recording files. This is useful if you need to manipulate the files after recording under a different user ID, e.g. to chop out commercials.

  Common examples:
  0644 == rw-r--r--
  0664 == rw-rw-r-- (default)
  0666 == rw-rw-rw-

  Note that the applicable umask applies, so 0666 with umask 0022 will produce 0644 (rw-r--r--). See also Directory permissions in Subdirectory Options.
Filename charset
  Character set for the created filename. Tvheadend will try to approximate characters to similarly looking ones.
Rewrite PAT in passthrough mode
  Rewrite the original Program Association Table to only include the active service. When this option is disabled, Tvheadend will write the original PAT as broadcast, which lists all services from the original multiplex.
Rewrite PMT in passthrough mode
  Generate a Program Map Table only listing the streams actually in the output transport stream. When this option is disabled, Tvheadend will write the original Program Map Table as broadcast, which may include references to excluded streams such as data and ECMs.
Tag files with metadata
  If checked, media containers that support metadata will be tagged with the metadata associated with the event being recorded.
Skip commercials
  If checked, commercials will be dropped from the recordings. At the moment, commercial detection only works for the swedish channel TV4.

  Subdirectory Options

Directory permissions
  The permissions to be set on any sub-directories created for recordings. This is useful if you need to manipulate the files after recording under a different user ID, e.g. to chop out commercials.

  Common examples:
  0755 == rwxr-xr-x
  0775 == rwxrwxr-x (default)
  0777 == rwxrwxrwx

  Note that the applicable umask applies, so 0777 with umask 0022 will produce 0755 (rwxr-xr-x). See also File permissions in Recording File Options.
Make sub-directories per day
  If checked, create a new directory per day in the recording system path. Only days when anything is recorded will be created. The format of the directory will be 'YYYY-MM-DD' (ISO standard)
Make sub-directories per channel
  If checked, create a directory per channel when storing events. If both this and the 'directory per day' checkbox is enabled, the date-directory will be parent to the per-channel directory.
Make sub-directories per title
  If checked, create a directory per title when storing events. If the day/channel directory checkboxes are also enabled, those directories will be parents of this directory.

  Filename Options

Include channel name in title
  If checked, include the name of the channel in the event title. This applies to both the titled stored in the file and to the file name itself.
Include date in title
  If checked, include the date for the recording in the event title. This applies to both the titled stored in the file and to the file name itself.
Include time in title
  If checked, include the time for the recording in the event title. This applies to both the titled stored in the file and to the file name itself.
Include episode in title
  If checked, include the season and episode in the title (if such info is available).
Include subtitle in title
  If checked, include the episode subtitle in the title (if such info is available).
Put episode in filename before date and time
  If checked, insert the episode number before the data and time rather than after (assumes Include date, Include time and Include episode options are set).
Remove all unsafe characters from filename
  If checked, all characters that could possibly cause problems for filenaming will be replaced with '_'.
  Applies to characters:
  * not supported by Windows characters: / : \ < > | * ? "
  * control characters (ASCII code below 32)
  * control and national characters (ASCII code above 122)
Replace whitespace in title with '-'
  If checked, whitespace characters (spaces and tabs) will be replaced with '-'.
Use Windows-compatible filenames
  If checked:
  * special characters not supported by Windows like: / : \ < > | * ? " will be replaced with '_'
  * trailing spaces ' ' and dots '.' will be removed

Changes to any of these settings must be confirmed by pressing the 'Save configuration' button before taking effect.