blog/Software_video_mixer_on_a_USB_stick.html

   1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
   2           "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
   3 <html xmlns="http://www.w3.org/1999/xhtml" dir="ltr">
   4   <head>
   5     <meta http-equiv="Content-Type" content="text/html;charset=utf-8" />
   6     <title>Petter Reinholdtsen: Software video mixer on a USB stick</title>
   7     <link rel="stylesheet" type="text/css" media="screen" href="http://people.skolelinux.org/pere/blog/style.css" />
   8     <link rel="stylesheet" type="text/css" media="screen" href="http://people.skolelinux.org/pere/blog/vim.css" />
   9
  10
  11   </head>
  12   <body>
  13     <div class="title">
  14  <h1>
  15      <a href="http://people.skolelinux.org/pere/blog/">Petter Reinholdtsen</a>
  16
  17  </h1>
  18
  19 </div>
  20
  21
  22     <div class="entry">
  23       <div class="title">Software video mixer on a USB stick</div>
  24       <div class="date">28th December 2008</div>
  25       <div class="body"><p>The <a href="http://www.nuug.no/">Norwegian Unix User Group</a> is
  26 recording our montly presentation on video, and recently we have
  27 worked on improving the quality of the recordings by mixing the slides
  28 directly with the video stream.  For this, we use the
  29 <a href="http://dvswitch.alioth.debian.org/">dvswitch</a> package from
  30 the Debian video team.  As this require quite one computer per video
  31 source, and NUUG do not have enough laptops available, we need to
  32 borrow laptops.  And to avoid having to install extra software on
  33 these borrwed laptops, I have wrapped up all the programs needed on a
  34 bootable USB stick.  The software required is dvswitch with assosiated
  35 source, sink and mixer applications and
  36 <a href="http://www.kinodv.org/">dvgrab</a>.  To allow this setup to
  37 work without any configuration, I've patched dvswitch to use
  38 <a href="http://www.avahi.org/">avahi</a> to connect the various parts
  39 together.  And to allow us to use laptops without firewire plugs, I
  40 upgraded dvgrab to the one from Debian/unstable to get one that work
  41 with USB sources.  We have not yet tested this setup in a production
  42 setup, but I hope it will work properly, and allow us to set up a
  43 video mixer in a very short time frame.  We will need it for
  44 <a href="http://www.goopen.no/">Go Open 2009</a>.</p>
  45
  46 <p><a href="http://www.nuug.no/pub/video/bin/usbstick-dvswitch.img.gz">The
  47 USB image</a> is for a 1 GB memory stick, but can be used on any
  48 larger stick as well.</p>
  49 </div>
  50
  51       <div class="tags">Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/nuug">nuug</a>, <a href="http://people.skolelinux.org/pere/blog/tags/video">video</a>.</div>
  52
  53
  54     </div>
  55
  56
  57
  58
  59     <div id="sidebar">
  60
  61
  62
  63 <h2>Archive</h2>
  64 <ul>
  65
  66 <li>2013
  67 <ul>
  68
  69 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/01/">January (11)</a></li>
  70
  71 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/02/">February (9)</a></li>
  72
  73 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/03/">March (9)</a></li>
  74
  75 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/04/">April (6)</a></li>
  76
  77 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/05/">May (9)</a></li>
  78
  79 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/06/">June (10)</a></li>
  80
  81 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/07/">July (7)</a></li>
  82
  83 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/08/">August (3)</a></li>
  84
  85 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/09/">September (3)</a></li>
  86
  87 </ul></li>
  88
  89 <li>2012
  90 <ul>
  91
  92 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/01/">January (7)</a></li>
  93
  94 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/02/">February (10)</a></li>
  95
  96 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/03/">March (17)</a></li>
  97
  98 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/04/">April (12)</a></li>
  99
 100 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/05/">May (12)</a></li>
 101
 102 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/06/">June (20)</a></li>
 103
 104 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/07/">July (17)</a></li>
 105
 106 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/08/">August (6)</a></li>
 107
 108 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/09/">September (9)</a></li>
 109
 110 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/10/">October (17)</a></li>
 111
 112 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/11/">November (10)</a></li>
 113
 114 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/12/">December (7)</a></li>
 115
 116 </ul></li>
 117
 118 <li>2011
 119 <ul>
 120
 121 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/01/">January (16)</a></li>
 122
 123 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/02/">February (6)</a></li>
 124
 125 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/03/">March (6)</a></li>
 126
 127 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/04/">April (7)</a></li>
 128
 129 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/05/">May (3)</a></li>
 130
 131 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/06/">June (2)</a></li>
 132
 133 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/07/">July (7)</a></li>
 134
 135 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/08/">August (6)</a></li>
 136
 137 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/09/">September (4)</a></li>
 138
 139 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/10/">October (2)</a></li>
 140
 141 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/11/">November (3)</a></li>
 142
 143 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/12/">December (1)</a></li>
 144
 145 </ul></li>
 146
 147 <li>2010
 148 <ul>
 149
 150 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/01/">January (2)</a></li>
 151
 152 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/02/">February (1)</a></li>
 153
 154 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/03/">March (3)</a></li>
 155
 156 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/04/">April (3)</a></li>
 157
 158 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/05/">May (9)</a></li>
 159
 160 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/06/">June (14)</a></li>
 161
 162 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/07/">July (12)</a></li>
 163
 164 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/08/">August (13)</a></li>
 165
 166 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/09/">September (7)</a></li>
 167
 168 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/10/">October (9)</a></li>
 169
 170 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/11/">November (13)</a></li>
 171
 172 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/12/">December (12)</a></li>
 173
 174 </ul></li>
 175
 176 <li>2009
 177 <ul>
 178
 179 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/01/">January (8)</a></li>
 180
 181 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/02/">February (8)</a></li>
 182
 183 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/03/">March (12)</a></li>
 184
 185 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/04/">April (10)</a></li>
 186
 187 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/05/">May (9)</a></li>
 188
 189 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/06/">June (3)</a></li>
 190
 191 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/07/">July (4)</a></li>
 192
 193 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/08/">August (3)</a></li>
 194
 195 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/09/">September (1)</a></li>
 196
 197 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/10/">October (2)</a></li>
 198
 199 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/11/">November (3)</a></li>
 200
 201 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/12/">December (3)</a></li>
 202
 203 </ul></li>
 204
 205 <li>2008
 206 <ul>
 207
 208 <li><a href="http://people.skolelinux.org/pere/blog/archive/2008/11/">November (5)</a></li>
 209
 210 <li><a href="http://people.skolelinux.org/pere/blog/archive/2008/12/">December (7)</a></li>
 211
 212 </ul></li>
 213
 214 </ul>
 215
 216
 217
 218 <h2>Tags</h2>
 219 <ul>
 220
 221  <li><a href="http://people.skolelinux.org/pere/blog/tags/3d-printer">3d-printer (13)</a></li>
 222
 223  <li><a href="http://people.skolelinux.org/pere/blog/tags/amiga">amiga (1)</a></li>
 224
 225  <li><a href="http://people.skolelinux.org/pere/blog/tags/aros">aros (1)</a></li>
 226
 227  <li><a href="http://people.skolelinux.org/pere/blog/tags/bankid">bankid (4)</a></li>
 228
 229  <li><a href="http://people.skolelinux.org/pere/blog/tags/bitcoin">bitcoin (7)</a></li>
 230
 231  <li><a href="http://people.skolelinux.org/pere/blog/tags/bootsystem">bootsystem (12)</a></li>
 232
 233  <li><a href="http://people.skolelinux.org/pere/blog/tags/bsa">bsa (2)</a></li>
 234
 235  <li><a href="http://people.skolelinux.org/pere/blog/tags/debian">debian (85)</a></li>
 236
 237  <li><a href="http://people.skolelinux.org/pere/blog/tags/debian edu">debian edu (140)</a></li>
 238
 239  <li><a href="http://people.skolelinux.org/pere/blog/tags/digistan">digistan (10)</a></li>
 240
 241  <li><a href="http://people.skolelinux.org/pere/blog/tags/docbook">docbook (10)</a></li>
 242
 243  <li><a href="http://people.skolelinux.org/pere/blog/tags/drivstoffpriser">drivstoffpriser (4)</a></li>
 244
 245  <li><a href="http://people.skolelinux.org/pere/blog/tags/english">english (215)</a></li>
 246
 247  <li><a href="http://people.skolelinux.org/pere/blog/tags/fiksgatami">fiksgatami (21)</a></li>
 248
 249  <li><a href="http://people.skolelinux.org/pere/blog/tags/fildeling">fildeling (12)</a></li>
 250
 251  <li><a href="http://people.skolelinux.org/pere/blog/tags/freeculture">freeculture (12)</a></li>
 252
 253  <li><a href="http://people.skolelinux.org/pere/blog/tags/freedombox">freedombox (1)</a></li>
 254
 255  <li><a href="http://people.skolelinux.org/pere/blog/tags/frikanalen">frikanalen (11)</a></li>
 256
 257  <li><a href="http://people.skolelinux.org/pere/blog/tags/intervju">intervju (37)</a></li>
 258
 259  <li><a href="http://people.skolelinux.org/pere/blog/tags/isenkram">isenkram (7)</a></li>
 260
 261  <li><a href="http://people.skolelinux.org/pere/blog/tags/kart">kart (18)</a></li>
 262
 263  <li><a href="http://people.skolelinux.org/pere/blog/tags/ldap">ldap (8)</a></li>
 264
 265  <li><a href="http://people.skolelinux.org/pere/blog/tags/lenker">lenker (6)</a></li>
 266
 267  <li><a href="http://people.skolelinux.org/pere/blog/tags/ltsp">ltsp (1)</a></li>
 268
 269  <li><a href="http://people.skolelinux.org/pere/blog/tags/multimedia">multimedia (25)</a></li>
 270
 271  <li><a href="http://people.skolelinux.org/pere/blog/tags/norsk">norsk (235)</a></li>
 272
 273  <li><a href="http://people.skolelinux.org/pere/blog/tags/nuug">nuug (153)</a></li>
 274
 275  <li><a href="http://people.skolelinux.org/pere/blog/tags/offentlig innsyn">offentlig innsyn (8)</a></li>
 276
 277  <li><a href="http://people.skolelinux.org/pere/blog/tags/open311">open311 (2)</a></li>
 278
 279  <li><a href="http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett (44)</a></li>
 280
 281  <li><a href="http://people.skolelinux.org/pere/blog/tags/personvern">personvern (66)</a></li>
 282
 283  <li><a href="http://people.skolelinux.org/pere/blog/tags/raid">raid (1)</a></li>
 284
 285  <li><a href="http://people.skolelinux.org/pere/blog/tags/reprap">reprap (11)</a></li>
 286
 287  <li><a href="http://people.skolelinux.org/pere/blog/tags/rfid">rfid (2)</a></li>
 288
 289  <li><a href="http://people.skolelinux.org/pere/blog/tags/robot">robot (7)</a></li>
 290
 291  <li><a href="http://people.skolelinux.org/pere/blog/tags/rss">rss (1)</a></li>
 292
 293  <li><a href="http://people.skolelinux.org/pere/blog/tags/ruter">ruter (4)</a></li>
 294
 295  <li><a href="http://people.skolelinux.org/pere/blog/tags/scraperwiki">scraperwiki (2)</a></li>
 296
 297  <li><a href="http://people.skolelinux.org/pere/blog/tags/sikkerhet">sikkerhet (30)</a></li>
 298
 299  <li><a href="http://people.skolelinux.org/pere/blog/tags/sitesummary">sitesummary (4)</a></li>
 300
 301  <li><a href="http://people.skolelinux.org/pere/blog/tags/skepsis">skepsis (4)</a></li>
 302
 303  <li><a href="http://people.skolelinux.org/pere/blog/tags/standard">standard (43)</a></li>
 304
 305  <li><a href="http://people.skolelinux.org/pere/blog/tags/stavekontroll">stavekontroll (3)</a></li>
 306
 307  <li><a href="http://people.skolelinux.org/pere/blog/tags/stortinget">stortinget (8)</a></li>
 308
 309  <li><a href="http://people.skolelinux.org/pere/blog/tags/surveillance">surveillance (17)</a></li>
 310
 311  <li><a href="http://people.skolelinux.org/pere/blog/tags/sysadmin">sysadmin (1)</a></li>
 312
 313  <li><a href="http://people.skolelinux.org/pere/blog/tags/valg">valg (8)</a></li>
 314
 315  <li><a href="http://people.skolelinux.org/pere/blog/tags/video">video (38)</a></li>
 316
 317  <li><a href="http://people.skolelinux.org/pere/blog/tags/vitenskap">vitenskap (4)</a></li>
 318
 319  <li><a href="http://people.skolelinux.org/pere/blog/tags/web">web (27)</a></li>
 320
 321 </ul>
 322
 323
 324     </div>
 325     <p style="text-align: right">
 326  Created by <a href="http://steve.org.uk/Software/chronicle">Chronicle v4.6</a>
 327 </p>
 328
 329   </body>
 330 </html>