https://www.tmplab.org/wiki/index.php?action=history&feed=atom&title=BigBlueButton_Videos
BigBlueButton Videos - Revision history
2026-11-04T05:55:33Z
Revision history for this page on the wiki
MediaWiki 1.43.9
https://www.tmplab.org/wiki/index.php?title=BigBlueButton_Videos&diff=6388&oldid=prev
Alban: /* Command Line process */
2023-09-29T09:17:24Z
<p><span class="autocomment">Command Line process</span></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 09:17, 29 September 2023</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>4. '''Download the WEBM files'''</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>4. '''Download the WEBM files'''</div></td></tr>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> $ wget https://<BBB DOMAIN>/<SOME ID>/deskshare/deskshare.webm</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> $ wget https://<BBB DOMAIN>/<SOME ID>/deskshare/deskshare.webm</div></td></tr>
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Alban
https://www.tmplab.org/wiki/index.php?title=BigBlueButton_Videos&diff=6387&oldid=prev
Alban: Created page with " == How to mix BBB videos == '''This is the process allowing you to retrieve separate audio and video files, to build your own mix using FFMPEG.''' BBB has a feature to reco..."
2023-09-29T09:17:09Z
<p>Created page with " == How to mix BBB videos == '''This is the process allowing you to retrieve separate audio and video files, to build your own mix using FFMPEG.''' BBB has a feature to reco..."</p>
<p><b>New page</b></p><div><br />
== How to mix BBB videos ==<br />
<br />
'''This is the process allowing you to retrieve separate audio and video files, to build your own mix using FFMPEG.'''<br />
<br />
BBB has a feature to record videoconferences but once the recording is complete, only a web interface to review the presentation, not a final video file.<br />
<br />
=== Command Line process ===<br />
<br />
1. '''Open your browser's Web Inspector / Developer Tools interface''' (F12) in a new tab<br />
<br />
2. '''Load the video presentation page''' ex: <code>https://<BBB DOMAIN>/playback/presentation/2.3/<SOME ID></code><br />
<br />
3. '''In the Developper Tools Network Panel, filter the Media assets''', and find the WEBM resources, i.e. webcams.webm and deskshare.webm<br />
<br />
4. '''Download the WEBM files'''<br />
<br />
<br />
$ wget https://<BBB DOMAIN>/<SOME ID>/deskshare/deskshare.webm<br />
$ wget https://<BBB DOMAIN>/<SOME ID>video/webcams.webm<br />
<br />
5. '''Run FFMPEG to mix the files'''<br />
<br />
# Change the variable to cut some time at the beginning of the video<br />
# Default: None <br />
# Format: hh:mm:ss.milli<br />
START_SEEK="0:0:00.000"<br />
ffmpeg -ss "$START_SEEK" -i deskshare.webm -ss "$START_SEEK" -i webcams.webm -c copy -map 0:v -map 1:a -y mixed-video-file.webm<br />
ls -lh mixed-video-file.webm</div>
Alban