This article is about Video-monitoring in the ardour3 Digital Audio Workstation.
Synchronous video playback has been available for use with JACK and thus Ardour since ~5 years. Even though it is being used in profession environments there was little to no integration into the Ardour GUI.
The goal of the “video-timeline patch” is to integrate an easily accessible video-track and video-monitor into ardour3 Digital Audio Workstation.
xjadeo only ; CMT-version
aicsd - first video-track using CMT-patches.
icsd - full integration
–videotimelineto become default.. and use
–novideotimelineto explicitly disable it.
see the /tools/videotimline/README file.
future: ardour-NLE ?!
In order to decode the video, Ardour connects to an external video server. Video-monitoring is provided by
[X]Jadeo and transcoding video is done with
ffmpeg. The latter two are optional but recommended.
The external software is available for OSX and GNU/Linux.
icsd(>=alpha-11) and optionally
1554(required for communication between ardour and the video-server).
Ardour will launch the video-server, ffmpeg and [X]Jadeo for you.
ardour3 is not yet available as binary. You must compile it from source.
Until the patch gets merged upstream, build-instructions are as follows:
git clone git://rg42.org/ardour3 cd ardour3/ ./waf configure --videotimeline ./waf
svn co http://subversion.ardour.org/svn/ardour2/branches/3.0 ardour3 cd ardour3/ curl "http://rg42.org/gitweb/?p=ardour3.git;a=commitdiff_plain;hp=master;h=videotl" | patch -p1 ./waf configure --videotimeline ./waf
you can either install ardour3 after building it, or launch it directly from the source-folder:
see the ardour build instructions for more information.
The video-server is a bit tricky to compile due to its dependencies (note that there's a static binary available - see above):
git clone git://rg42.org/sodankyla cd sodankyla autoreconf automake --add-missing ./configure make src/icsd
If you do not install
icsd on your system using
sudo make install or by copying the
icsd binary into $PATH, Ardour will ask for its location.
Note: on OSX configure it with
and don't forget to set PKG_CONFIG_PATH to where the dependent libs can be found.
Please refer to the xjadeo manual and ffmpeg's build-instructions.
If you run the video-server on the same host as ardour, no further configuration is required. Just make sure there's no firewall on localhost port 1554 (NOTE: on OSX
icsd fails to bind to
localhost/127.0.0.1 only → you need to choose
When opening the first video, ardour3 will ask for the path of the video-server binary (unless it is found in
$PATH) and also allows you to change the TCP port number.
Transcoding is only available if
ffprobe are found in
$PATH (fallback on OSX:
/usr/local/bin/ffmpeg_sodankyla - provided with icsd.pkg). The video-monitor likewise requires
xjremote in $PATH or
/Applications/Jadeo.app/Contents/MacOS/xjremote to be present. xjremote comes with xjadeo and Jadeo respectively.
The video-server can be run on a remote-machine with ardour connecting to it. In this case you need to start-up
icsd on the server-machine and configure ardour to access using Menu→Edit→Preferences. You should have a fast network connection (>=100Mbit/s, low latency (switch is better than router) and preferably a dedicated network) between the machine running ardour and the video-server.
While not required for operation, it is handy to share the video-server's document-root filesystem with the machine running ardour. It is however necessary to make use of
Sharing can be done using any network-file-system (video-files reside on the server, not the ardour workstation) or using NAS. Alternatively a remote replica of the ardour-project-tree that only contains the video-files is an option. The local project folder only needs a copy of the video-file for displaying a video-monitor monitor.
document root configured in ardour is removed from the local absolute-path to the selected file when making a request to the video-server.
It is be pretty much self-explanatory.
OLD README file..
+++ INSTALLATION When Ardour3 is configured with ./waf --videotimeline it can display a (surprise) video-timeline. It looks like: http://rg42.org/_media/wiki/a3vtl3.png In order to decode the video, Ardour connects to an external video server, which is currently in the making: git://rg42.org/sodankyla A statically linked binary is available from http://rg42.org/_media/oss/sodankyla/icsd-static-alpha11.tgz and a prototype-test server PHP-script is described below. Make sure you don't have a firewall on 'localhost:1554' (default IP/port for 'icsd'). You don't need to install or start 'icsd'. Ardour3 will ask where it is located (unless it's in $PATH) and start it for you. If xjadeo (http://xjadeo.sf.net/) is found in the PATH it can be launched from within Ardour to provide a full-screen video monitor. The option is presented when opening a video file for the timeline and is later available from the 'View' Menu. (Note: it works with xjadeo > 0.4.0 but you need a recent version of xjadeo >= 0.4.12 to get full session-save/restore, also the non-JACK video-sync mode requires >= 0.4.12 otherwise the reaction-speed is quite slow.) The video-server can also be installed on a different machine. In this case you need to start it yourself and configure its URL in Ardour's Preferences If you want to use file-selection dialog and xjadeo integration, you should export the remote-filesystem (eg via NFS ) to the machine where ardour runs on. +++ SOURCE AND BUILD INSTRUCTIONS until it is merged upstream, the build-instructions are as follows: git clone git://rg42.org/ardour3 cd ardour3/ git checkout -b videotl origin/videotl ./waf configure --videotimeline ./waf ..OR.. svn co http://subversion.ardour.org/svn/ardour2/branches/3.0 ardour3 cd ardour3/ curl "http://rg42.org/gitweb/?p=ardour3.git;a=commitdiff_plain;hp=master;h=videotl" | patch -p1 ./waf configure --videotimeline ./waf start Ardour3: cd gtk2_ardour/ ./ardev or `./wav install` it and launch it the usual way. +++ USAGE It is be pretty much self-explanatory. Menu->Session->Open Video Menu->View->Rulers->Video (or right-click the ruler/marker bar -> Video) Menu->View->Video Monitor (xjadeo) Menu->Session->Properties->Video (video-server settings) Menu->Session->Video maintenance-> ... (manual video server interaction) +++ PROTOTYPE VIDEO SERVER There is a prototype PHP script can act as video-server in this folder. Copy (or link) 'vseq.php' to your document-root (eg /var/www/ on GNU/Linux; /Library/Webserver/Documents/ on OSX) so that it can be reached by http://localhost/vseq.php (this is currently the default URL, you can change it in the a3 preferences) The script requires a recent version of 'ffmpeg' & 'ffprobe'. (ffmpeg.org) and 'convert' (imagemagick.org). Paths to those executables can be set at the top of the PHP script. You can test with a web-browser, fi. http://localhost/vseq.php?file=/tmp/tsmm-25.avi&mode=info http://localhost/vseq.php?file=/tmp/tsmm-29.97df.avi&frame=10&format=png where file=<absolute-path-to-a-video-file> NOTE that this PHP script-solution is veeeeerrrryy slooooow! It does not caches frames, and even opens the video-file twice for each decoded frame. Furthermore the PHP/Web user who runs the script must be have read-access to the video-file(s). +++ DETAILS The video-server understands the following URL request parameters: file=<FILE-NAME> # needs to be readable by the PHP script. frame=<frame-number> w=<width in pixels> # default 80 h=<height in pixels> # default 60 format=<output-format> # default "rgb" ; possible: "png", "jp[e]g", "rgb[a]" /vseq.php/info?.. # special mode which uses file=XXX and # returns information about the file separated by a newline '\n' # # Protocol Version number (currently 1) # FPS (float) # duration (in frames) # start-offset (in seconds) # aspect-ratio /vseq.php/status?.. # special mode which returns server status info. For testing, files with the time-code rendered on each frame eg. video-frame number 0 displays the text "Frame: 0" and "00:00:00:00" in various formats/codecs are available from: http://tux.gareus.org/torrents/tsmm_mpeg4-mov_10mins.torrent http://tux.gareus.org/torrents/tsmm_mjpeg-avi_10mins.torrent http://tux.gareus.org/torrents/tsmm_h264-avi_10mins.torrent http://tux.gareus.org/torrents/tsmm_h264-mov_10mins.torrent each torrent contains files with framerates 23.976, 24, 24.976, 25, 29.97df, 30, 59.94 and 60 fps. The video-server already works but is changing rapidly and somewhat tricky to compile due to dependencies: - libjpeg, libpng, libav*/libswscale, libltcsmpte (http://ltcsmpte.sf.net/) - optionally: libsqlite3, liblo, libjack, SDL, openGL, gavl/gmerlin git clone git://rg42.org/sodankyla cd sodankyla autoreconf automake --add-missing ./configure make src/icsd ./src/icsd [-C 512] <docroot> on OSX configure it with CFLAGS="-fnested-functions" ./configure and don't forget to set the PKG_CONFIG_PATH :) Use '/' as docroot or configure it in Ardour3: Edit->Preferences->Video The server URL is 'http://localhost:1554/' and the docroot '/' (unless you override these defaults with icsd command line args). NOTE: Make sure to add the trailing slash for a folder eg. use '/tmp/' - not '/tmp' as document-root in both Ardour preferences and the setting for icsd. +++ CONTACT email@example.com firstname.lastname@example.org