https://wiki.karmaking.de/index.php?action=history&feed=atom&title=Ffmpeg-zoom-webcam 2026-10-28T06:47:01Z Revision history for this page on the wiki MediaWiki 1.46.2 https://wiki.karmaking.de/index.php?title=Ffmpeg-zoom-webcam&diff=291&oldid=prev 2024-04-23T10:58:07Z

<p></p> <table style="background-color: #fff; color: #202122;" data-mw-interface=""> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <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 10:58, 23 April 2024</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1">Line 1:</td> <td colspan="2" class="diff-lineno">Line 1:</td></tr> <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;"><br></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;"><br></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>   modprobe v4l2loopback devices=<del style="font-weight: bold; text-decoration: none;">1 </del>exclusive_caps=1</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>   modprobe v4l2loopback devices=<ins style="font-weight: bold; text-decoration: none;">3 </ins>exclusive_caps=1</div></td></tr> <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>   fac=1.4</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>   fac=1.4</div></td></tr> <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>   ffmpeg -vcodec mjpeg -r 30 -s 1920x1080 -i /dev/video2 -vf &quot;scale=$fac*iw:-1, crop=iw/$fac:ih/$fac&quot;,&quot;format=yuv420p&quot; -f v4l2 /dev/video5</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>   ffmpeg -vcodec mjpeg -r 30 -s 1920x1080 -i /dev/video2 -vf &quot;scale=$fac*iw:-1, crop=iw/$fac:ih/$fac&quot;,&quot;format=yuv420p&quot; -f v4l2 /dev/video5</div></td></tr> </table>

Daniel https://wiki.karmaking.de/index.php?title=Ffmpeg-zoom-webcam&diff=290&oldid=prev 2024-04-23T10:52:21Z

<p></p> <table style="background-color: #fff; color: #202122;" data-mw-interface=""> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <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 10:52, 23 April 2024</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1">Line 1:</td> <td colspan="2" class="diff-lineno">Line 1:</td></tr> <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;"><br></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;"><br></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>   modprobe v4l2loopback devices=<del style="font-weight: bold; text-decoration: none;">3</del></div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>   modprobe v4l2loopback devices=<ins style="font-weight: bold; text-decoration: none;">1 exclusive_caps=1</ins></div></td></tr> <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>   fac=1.4</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>   fac=1.4</div></td></tr> <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>   ffmpeg -vcodec mjpeg -r 30 -s 1920x1080 -i /dev/video2 -vf &quot;scale=$fac*iw:-1, crop=iw/$fac:ih/$fac&quot;,&quot;format=yuv420p&quot; -f v4l2 /dev/video5</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>   ffmpeg -vcodec mjpeg -r 30 -s 1920x1080 -i /dev/video2 -vf &quot;scale=$fac*iw:-1, crop=iw/$fac:ih/$fac&quot;,&quot;format=yuv420p&quot; -f v4l2 /dev/video5</div></td></tr> </table>

Daniel https://wiki.karmaking.de/index.php?title=Ffmpeg-zoom-webcam&diff=289&oldid=prev 2024-04-22T19:06:17Z

<p>Created page with &quot; modprobe v4l2loopback devices=3 fac=1.4 ffmpeg -vcodec mjpeg -r 30 -s 1920x1080 -i /dev/video2 -vf &quot;scale=$fac*iw:-1, crop=iw/$fac:ih/$fac&quot;,&quot;format=yuv420p&quot; -f v4l2 /dev/video5&quot;</p> <p><b>New page</b></p><div><br /> modprobe v4l2loopback devices=3<br /> fac=1.4<br /> ffmpeg -vcodec mjpeg -r 30 -s 1920x1080 -i /dev/video2 -vf &quot;scale=$fac*iw:-1, crop=iw/$fac:ih/$fac&quot;,&quot;format=yuv420p&quot; -f v4l2 /dev/video5</div>

Daniel