lwc:multimedia_and_graphics

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lwc:multimedia_and_graphics [2022/11/17 06:46] – John Harrisonlwc:multimedia_and_graphics [2023/08/18 08:22] (current) – John Harrison
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   * [[http://stackoverflow.com/questions/12336401/creating-icon-fonts-with-vector-software-i-e-inkscape-and-fontforge|How to create a ttf]]   * [[http://stackoverflow.com/questions/12336401/creating-icon-fonts-with-vector-software-i-e-inkscape-and-fontforge|How to create a ttf]]
-  * crossfade example with ffmpeg (audio and video):+ 
 +==== Crossfade with ffmpeg ==== 
 +=== crossfade example with ffmpeg (audio and video) ===
 <code> <code>
 /opt/ffmpeg/bin/ffmpeg -i 1.mov -i 2.mov -f lavfi -i color=black -filter_complex \ /opt/ffmpeg/bin/ffmpeg -i 1.mov -i 2.mov -f lavfi -i color=black -filter_complex \
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 [over1][va1]overlay=format=yuv420[outv]" \ [over1][va1]overlay=format=yuv420[outv]" \
 -vcodec libx264 -preset ultrafast -qp 0 -aspect 1.778 -map [outv] -map [outa] -acodec libvorbis -qscale:a 10 -ss 00:00:02 -t 5 out.mp4 -vcodec libx264 -preset ultrafast -qp 0 -aspect 1.778 -map [outv] -map [outa] -acodec libvorbis -qscale:a 10 -ss 00:00:02 -t 5 out.mp4
 +</code>
 +=== crossfade using ffmpeg and xfade ===
 +<code>
 +ffmpeg -i first.mp4 -i second.mp4 -filter_complex "xfade=transition=fade:offset=60:duration=1" out.mp4
 +<code>
 +// from https://superuser.com/questions/778762/crossfade-between-2-videos-using-ffmpeg //
 </code> </code>
   * compress video with ffmpeg:   * compress video with ffmpeg:
  • lwc/multimedia_and_graphics.1668689203.txt.gz
  • Last modified: 2022/11/17 06:46
  • by John Harrison