https://entorb.net//wiki/index.php?action=history&feed=atom&title=Video_Encoding 2026-05-06T10:27:47Z Revision history for this page on the wiki MediaWiki 1.43.1 https://entorb.net//wiki/index.php?title=Video_Encoding&diff=5181&oldid=prev 2025-03-23T06:10:45Z

<p></p> <p><b>New page</b></p><div>[[Category:Software]]<br /> ===2024===<br /> see [[Video shrinking]] for Handbrake<br /> <br /> <br /> ===Nice Linux tools===<br /> * Avidemux (simple cutting+converting) <br /> * Kdenlive (joining multiple video/audio tracks)<br /> * WinFF frontend for the encoder FFmpeg<br /> * gkt-recordmydesktop (videoformat=ogv ; problems recording an applications sound output)<br /> <br /> ====ffmpeg====<br /> =====convert gif to mp3=====<br /> from [https://unix.stackexchange.com/questions/40638/how-to-do-i-convert-an-animated-gif-to-an-mp4-or-mv4-on-the-command-line]<br /> ffmpeg -y -i myanimation.gif -movflags faststart -pix_fmt yuv420p -vf &quot;scale=trunc(iw/2)*2:trunc(ih/2)*2&quot; myvideo.mp4<br /> <br /> ===H.264 codec===<br /> you need this packages<br /> libavcodec-unstripped-52<br /> libavdevice-unstripped-52<br /> libavfilter-unstripped-0<br /> libavformat-unstripped-52<br /> libavutil-unstripped-49<br /> libpostproc-unstripped-51<br /> libswscale-unstripped-0<br /> (or newer versions)<br /> <br /> ===ogv -&gt; H.264===<br /> 1. Win FF is a frontend for FFmpeg<br /> useful parameters:<br /> -f mp4 -vcodec libx264 -acodec libfaac -ac 2<br /> <br /> 2. ffmpeg by hand (bitrate: -b)<br /> ffmpeg -i input.avi -f mp4 -vcodec libx264 -acodec libfaac -ac 2 -b 1000k output.mp4<br /> <br /> 3. mencoder input.ogm -ovc xvid -oac mp3lame -xvidencopts pass=1 -o output.avi <br /> (without -oac mp3lame for no sound)<br /> <br /> ===Kdenlive===<br /> <br /> ====no h.264 output====<br /> [http://ubuntuforums.org/showthread.php?t=1280510]<br /> to overcome this problem, one can add other rendering profiles:<br /> 1) click on one of the predefined rendering profiles in the H.264 group<br /> 2) click the &#039;Create new profile&#039; button<br /> 3) Give it a name, and replace acodec=libfaac to acodec=libmp3lame<br /> This will then render with mp3+h264<br /> <br /> ====Making a screengrab using Kdenlive====<br /> [http://www.kdenlive.org/contribution-manual/howto-make-video-tutorial]<br /> <br /> gtk-recordmydesktop can be used to record a desktop video in ogv format.<br /> <br /> in order to edit this usind kdenlive create a custom profile: (Settings -&gt; Manage Project Profiles)<br /> set the parameters to the ones of the video<br /> Use this new Profile for your Project.<br /> <br /> ====Audio to Mono====<br /> ac=1 for mono<br /> ab=64k<br /> ar=44100</div>

Torben