Week 1

June 19, 2016work

General Notes from week 1

List of randomly useful things in no particular ordering

List of stuff to learn

Frameworks

• GStreamer
  • input-selector
  • output-selector
  • Events/Bus/GLib
  • PIP/Drawing/Transform

List of stuff learned

Python

• Key logging
  • OSX: https://github.com/justicesuh/python-keylogger/blob/master/keylogger.py
  • Linux: https://github.com/amoffat/pykeylogger
  • Pygame: http://stackoverflow.com/questions/27732736/pygame-key-pressed
• Multi-threading

import threading

thread1 = threading.Thread(target=<function_name>)  
thread2 = threading.Thread(target=<...>, kwargs={<'Var':Val})

• To Learn
  • ThreadGroup
  • ThreadName
  • Args
  • Daemon

Frameworks

• GStreamer
  • Elements
    • General
      • valve - Controls Buffer Drop
      • input-selector - Directs In(s) to OutTo LearnUsagecache-buffers (!)sync-mode (!)sync-streams
      • output-selector - Directs In to Out (of N)To Learnpad-negotiation-mode``resend-latest
    • SRC
      • videotestsrc - Video Test Source
      • audiotestsrc - Audio Test Source
      • v4l2src - Webcam Source
      • filesrc - File Source
    • SINK
      • autovideosink
      • ximagesink
      • filesink
    • PAD
    • TRANSFORM
      • capsfilter - Enforces Data Format CapabilitiesUsed in /personal/.../vfps/``video/x-raw is shorthand for capsfilter caps=video/x-rawTo Learncaps-change-mode