telxcc
telxcc is utility extracting teletext Closed Captions from Transport Streams (DVB-T) into SRT text files.
telxcc is
- tiny and lightweight (few KiBs binary, no lib dependencies)
- multiplatform (Mac, Linux, Windows)
- modern (fully supports UTF-8, conforms to ETSI 300 706 Presentation Level 1.5)
- stable
- high performing (on Macbook with Intel SSD it processes TS files at speed of 210 MiBps, with less than 30 % 1 CPU core utilization, SSD is the bottleneck)
- easy to use
Build
$ make ↵
On Mac typically you can use clang preprocessor:
$ make CC=clang ↵
You can also copy any *.ts files into the current directory and build a profiled version (up to 3% performance gain on repeat tasks):
$ make profiled ↵
telxcc has no lib dependencies and is easy to build and run on Linux, Mac and Windows.
Command line params
$ ./telxcc -h ↵
telxcc - teletext closed captioning decoder
(c) Petr Kutalek <petr.kutalek@forers.com>, 2011-2012; Licensed under the GPL.
Please consider making a Paypal donation to support our free GNU/GPL software: http://fore.rs/donate/telxcc
Built on Feb 26 2012
Usage: telxcc [-h] | [-p PAGE] [-t TID] [-o OFFSET] [-n] [-1] [-c] [-v]
STDIN transport stream
STDOUT subtitles in SubRip SRT file format (UTF-8 encoded)
-h this help text
-p PAGE teletext page number carrying closed captioning (default: 888)
-t TID transport stream PID of teletext data sub-stream (default: auto)
-o OFFSET subtitles offset in seconds (default: 0.0)
-n do not print UTF-8 BOM characters at the beginning of output
-1 produce at least one (dummy) frame
-c output colour information in font HTML tags
(colours are supported by MPC, MPC HC, VLC, KMPlayer, VSFilter, ffdshow etc.)
-v be verbose (default: verboseness turned off, without being quiet)
Usage example
$ ./telxcc -p 777 < 2012-02-15_1900_WWW_NRK.ts > dagsrevyen.srt ↵
telxcc - teletext closed captioning decoder
(c) Petr Kutalek <petr.kutalek@forers.com>, 2011-2012; Licensed under the GPL.
Please consider making a Paypal donation to support our free GNU/GPL software: http://fore.rs/donate/telxcc
Built on Feb 26 2012
INFO: No teletext PID specified, first received suitable stream PID is 576 (0x240), not guaranteed
INFO: Programme Identification Data = "NRK TV "
INFO: Universal Time Co-ordinated = Wed Feb 15 19:14:04 2012
INFO: Done (17745 teletext packets processed, 46 SRT frames written)
$ _
Other notes
There are some notes on my DVB-T capture and processing chains in notes folder.
- Task are parallelized (even over multiple files processing -- eg. encoding audio from file 1.ts and video from file 2.ts)
- MP4 output files are fully iPhone/iPad (and also Mac OS X) compatible including CC(!) and HTTP streaming (iOS >= 5 and (iPhone >= 4 or iPad 2))
Pricing
telxcc is free GNU/GPL-licensed software. However if you use it, please consider making a Paypal donation.
Support
Any bug reports are very welcome. Unfortunately I am unable to provide you with free support.
Made by ILUNION for the Prosperity4All project: Ecosystem infrastructure for smart and personalised inclusion and PROSPERITY for ALL stakeholders. This project has received funding from the European Union’s Seventh Programme for research, technological development and demonstration under grant agreement, No 610510.