TS Info
Contents
TS Info
In the Open Source multimedia field there are various choices for multimedia streaming and playback. However analysing and checking validity of MPEG-TS streams is not really possible. DVBsnoop (http://dvbsnoop.sourceforge.net/) is the only application that is only one that comes near this goal, but it is a commandline utility. This doesn't make it easy to be used.
The goal of TS Info is to be an easy to use MPEG-TS (MPTS/SPTS) analyser with all the information, analysis and validation right under you finger tips.
It should also be possible to insert the TS Analyser/TS Monitor in between the client and the server and monitor the stream for the boundaries configured. If the boundaries (or rules) are crossed, then a trigger will be sent to indicate a deviation from the required settings.
Features
- Input from TS/RTP/UDP or TS/UDP
- Possible extension to use linux-dvb device (maybe use dvblast as input)
- PID list and bandwidths / %age - bargraph
- Bitrates (also audio and video separate)
- Mux distance of audio and video packets
- SI table parsing (NIT, PMT, PAT, EIT, CAT, etc.) / descriptor parsing
- Detect scrambled content (check scrambling bits 11, 10, optional 01/00)
- I-frame gap
- Determine GOP length
- Detect Open/Closed GOP
- Teletext/closed captioning detection
- CRC errors
- I-frame decoding
- Discontinuity indication
- Subtitle decoding
- EPG grid
- PID selection and forwarding to VLC (via UDP stream?)
- Triggers on deviation from set boundaries (mux distance < 500ms, if not then sent trigger eg: sms/e-mail)
- Mention conformance to which standard and link to it if online source is available
Architecture
proposal: TS Analyser GUI - user interface to browse the MPEG-TS stream content (information gathered is similar to DVBsnoop) TS Analyser - real-time MPEG-TS analyser that informs the GUI/TS Monitor of features discovered and various measurements TS Monitor - real-time MPEG-TS monitor that triggers on deviations of preferred features in the MPEG-TS stream
MPEG-TS --------> RTP/UDP input ---> TS Analyser --> RTP/UDP output (MPTS/SPTS)
License
TS Analyser GUI : GPLv2 TS Analyser library : LGPLv2.1 TS Monitor daemon : GPLv2
