Free dvr software for linux

DVR is short from Digital Video Recorder.
In a few words DVR is a simple and efficient software aiming at recording digital video on a Linux computer.
DVR runs on computers equipped with one or more video capture cards. It can record and compress audio and video in real time, using recent codecs like DivX or Indeo 5 for example. See the page features for more details.
Main features:
- records simultaneously video and audio streams
- uses standard AVI file format for data storage
- uses common codecs like mpg4 for video, mp3 for audio
- writes segmented files, in order to split large files
- threaded : take profit of multi-processors computers
- horizontal margin removal during capture
DVR GUI features
- nice and easy to use graphical user interface, with direct "start" and "stop" buttons
- simultaneous preview and capture (depends on your hardware capabilities)
- fullscreen preview
- configurable start time and duration. DVR will automatically start to record at a fixed date, and will stop after a fixed duration.
- detailled monitoring during recording (free space left, frames lost, CPU usage, ...)
- saves parameters on stop, and reloads them on launch
- translated in english, french and german
DVR Console features
- runs without X-Window, as a standalone background task
- can be launched several times simultaneously, in order to record from several video sources
- in progress : starts to record on move detection
- in progress : remote distributed control

Freevo project is a Linux application that turns a PC with a TV capture card and/or TV-out into a standalone multimedia jukebox/VCR/PVR/HTPC/DVR/set-top box.
It uses MPlayer and other apps to play and record audio and video. It is optimized for use with a TV and remote, but can be used with a monitor and keyboard. It is very easy to install since the binary release package has no external dependencies.
Main features:
- SDL
- Pygame
- Python Imaging Library
- Mplayer
- Python
- Python Twisted
- Xine
Enhancements:
- New audio scrobbler plug-in
- New Chinese translation
- New Greek translation
- Updates the Apple trailers plug-in
- Updates to recordings manager
- Updates to button bar plug-ins
- Updated French translation
- Updated Spanish translation
- Changes to MPlayer field dominance and interlacing
- Many bug fixes

ccextractor project is a fast closed captions extractor for MPEG files.
ccextractor is mostly a mildly optimized C port of McPoodles excellent but painfully slow Perl script SCC_RIP. It lets you rip the raw closed captions (read: subtitles) data from a number of sources, such as DVD or replay TV.
As an added bonus compared to the original SCC_RIP, ccextractor can extract subtitles from the HDTV transport streams that are becoming more common.
At this point ccextractor extracts the line 21 captions (which must legally be present for a number of years until the transition to digital is complete). Note that in most .ts you can find, there will be subtitle data for both analog (EIA-608) decoders and digital (EIA-708). AFAIK there are not
freely available EIA-708 rippers.
Anyway, since line 21 captions will be available for some time, we have time to build a decent 708 ripper.
Basic Usage
For details on CC, please go to McPoodles page:
http://www.geocities.com/mcpoodle43/SCC_TOOLS/DOCS/SCC_TOOLS.HTML
You will need his tools to use ccextrators output.
The basic idea is that you get the raw closed caption dump from ccextractor.
Then you need other tools (which vary depending on what you want to do) to continue processing.
To get a transcript from a .ts file in .srt (I assume this will be the most common use) do this:
ccextractor -12 input_file
-12 means "extract both subtitle tracks" (actually technical names are fields but tracks is easier to understand). 1 is almost always English. 2 is Spanish in HBO (at least in the few samples Ive seen) but could be anything. Just extract both of them and check.
Example: cctractor -12 house315.ts
ccextractor will create two files, called house315_1.bin and _2.
Then use McPoodles RAW2SCC to create a temporary SCC file (means Scenerist, which is originally the native format for some program, its not important here).
raw2scc house315_1.bin
This creates house315_1.scc
From this .scc file, you can get the final .srt by using McPoodles CCASDI:
ccasdi -s house315_1.srt
Which looks like this (just 3 random lines shown).
514
00:24:07,400 --> 00:24:09,300
Theyve got another trial
going on at Duke.
515
00:24:09,367 --> 00:24:12,567
15% extend their lives
beyond five years.
516
00:24:12,634 --> 00:24:13,701
If youre positive
for protein PHF--
Enhancements:
- This release adds support for DVR-MS files.
- It improves the CC decoder.
- There are several bugfixes, a major speed boost (20%-40%), improved timing for non-TS files, improved format autodetection, and other minor improvements.