Difference between revisions of "TS Info"

From VideoLAN Wiki
Jump to navigation Jump to search
m (DoesItReallyMatter moved page TSinfo to TS Info: Appears to be the intended name)
m (Limited copy-edit)
Line 1: Line 1:
= 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.
 
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.
  
Line 10: Line 8:
  
 
* Input from TS/RTP/UDP or TS/UDP
 
* Input from TS/RTP/UDP or TS/UDP
* Possible extension to use linux-dvb device (maybe use dvblast as input)
+
* Possible extension to use linux-dvb device (maybe use [[dvblast]] as input)
 
* PID list and bandwidths / %age - bargraph
 
* PID list and bandwidths / %age - bargraph
 
* Bitrates (also audio and video separate)
 
* Bitrates (also audio and video separate)
Line 32: Line 30:
  
 
proposal:
 
proposal:
TS Analyser GUI - user interface to browse the MPEG-TS stream content (information gathered is similar to DVBsnoop)
+
* 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 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
+
* TS Monitor      - real-time MPEG-TS monitor that triggers on deviations of preferred features in the MPEG-TS stream
 
+
<pre>
 
                                     TS Analyser GUI
 
                                     TS Analyser GUI
 
                                           |
 
                                           |
Line 42: Line 40:
 
(MPTS/SPTS)                                |
 
(MPTS/SPTS)                                |
 
                                     TS Monitor --> send trigger if deviation detected
 
                                     TS Monitor --> send trigger if deviation detected
 
+
</pre>
 
== License ==
 
== License ==
  
TS Analyser GUI : GPLv2
+
* TS Analyser GUI : GPLv2
TS Analyser library : LGPLv2.1
+
* TS Analyser library : LGPLv2.1
TS Monitor daemon : GPLv2
+
* TS Monitor daemon : GPLv2

Revision as of 07:27, 28 April 2019

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
                                     TS Analyser GUI
                                           |

MPEG-TS --------> RTP/UDP input ---> TS Analyser --> RTP/UDP output
(MPTS/SPTS)                                |
                                     TS Monitor --> send trigger if deviation detected

License

  • TS Analyser GUI : GPLv2
  • TS Analyser library : LGPLv2.1
  • TS Monitor daemon : GPLv2