StatsSystem

Requirements

Goal

Central system for storing statistics and timings

Stored data

What we might want to collect:

• per-stream/global decoded, dropped frames
• per-stream/global packets read/errors
• per-stream/global packets sent/errors (if sout)
• stats about httpd/vod, per access

Each thing could be stored as average, max, counter, ...

Data access

• Access stats from the GUI (simple)
• Dump HTTP server access data
• Dump some raw access data to output

Design

Data storage

Stats object

Stored as a singleton in p_libvlc

Counters

counter_sample_t {

  value
  date

}

counter_elem_t {

  name
  type
  pp_samples / i_samples

}

Name contains the originating object id, like "267.frames_decoded"

Timing

timing_elem_t {

  name

  last_time,

  total_time,
  total_samples,

  running,
  start_time   

}

Reporting

• In GUI:
  • Integrated in streams and media information for relevant items (make it available for VLM streams too)
  • Where to put global data ?

• Data log:
  • Make global options to enable and driver logger module
  • Add some logging facility to httpd
  • RRD output (muwahahahaha)