Dustin Spicuzza virtuald

NOTE: These scripts are obsolete, you should use the mjpg-streamer.ipk file published at https://github.com/robotpy/roborio-packages instead.

mjpg-streamer scripts for RoboRIO

This was very quickly put together... so not quite as polished as I would normally like. :)

We used these scripts to run two camera servers on our roboRIO. Very little CPU usage as far as we can see. Only tested with the Microsoft LifeCam 3000 cameras.

	#!/usr/bin/env python
	'''
	Simple program that uses the 'bpmdetect' GStreamer plugin to detect
	the BPM of a song, and outputs that to console.

	Requires GStreamer 1.x, PyGObject 1.x, and gst-plugins-bad

	Copyright (C) 2015 Dustin Spicuzza

	This program is free software; you can redistribute it and/or modify


	import ctypes.wintypes
	import ctypes as C

	_dsound_dll = C.windll.LoadLibrary("dsound.dll")
	_DirectSoundEnumerateW = _dsound_dll.DirectSoundEnumerateW

	_LPDSENUMCALLBACK = C.WINFUNCTYPE(C.wintypes.BOOL,
	C.wintypes.LPVOID,
	C.wintypes.LPCWSTR,

	#
	# Playbin bug: Play 2 flac files (presumably of any length), and play
	# 2 mp3 files, using gapless playback, and weirdness happens
	#
	# On GST 1.4.5, track4.mp3 stalls for ~10s or so without playing, but
	# there is no audio for track3 or track4. Other tests I've conducted
	# track3 does have audio, but there is still a pause.
	#
	# On GST 1.5.2, there is no volume for track3 or track4.mp3, but no
	# stall occurs. Seems like a bug.

	0:00:00.000044940 24400 0xd5e720 INFO GST_INIT gst.c:499:init_pre: Initializing GStreamer Core Library version 1.4.5
	0:00:00.000090481 24400 0xd5e720 INFO GST_INIT gst.c:500:init_pre: Using library installed in /usr/lib64
	0:00:00.000100859 24400 0xd5e720 INFO GST_INIT gst.c:511:init_pre: Linux localhost.localdomain 3.19.3-200.fc21.x86_64 #1 SMP Thu Mar 26 21:39:42 UTC 2015 x86_64
	0:00:00.000254496 24400 0xd5e720 INFO GST_INIT gstmessage.c:119:_priv_gst_message_initialize: init messages
	0:00:00.000601084 24400 0xd5e720 INFO GST_INIT gstcontext.c:77:_priv_gst_context_initialize: init contexts
	0:00:00.000787706 24400 0xd5e720 INFO GST_PLUGIN_LOADING gstplugin.c:317:_priv_gst_plugin_initialize: registering 0 static plugins
	0:00:00.000865813 24400 0xd5e720 INFO GST_PLUGIN_LOADING gstplugin.c:225:gst_plugin_register_static: registered static plugin "staticelements"
	0:00:00.000876420 24400

	<!DOCTYPE html>
	<html lang="en">
	<head>
	<meta charset="utf-8">
	</head>
	<body>

	<!-- This starts the NetworkTables websocket, it can be accessed from multiple
	pages simultaneously -->
	<script src="/networktables/networktables.js"></script>


	import wpilib
	from wpilib.buttons import JoystickButton
	from wpilib.command import Command, CommandGroup, Scheduler

	class DoTheThing(Command):
	def __init__(self, robot):
	super().__init__()
	self.robot = robot

	#!/usr/bin/env python3

	import os
	import sys

	_b = sys.version_info[0] < 3 and (lambda x:x) or (lambda x:x.encode('utf-8'))

	def ssh_exec_pass(password, args, capture_output=False):
	'''
	Wrapper around openssh that allows you to send a password to

	#!/usr/bin/env python

	from tornado import gen
	from tornado.ioloop import IOLoop


	@gen.coroutine
	def exception_gets_lost():

	print 'got here'