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February 1, 2018 15:48
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some useful assets conversions for websites
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| # convert video to webm | |
| # https://thethemefoundry.com/blog/convert-mp4-to-webm/ | |
| ffmpeg -i myvideo.mp4 -c:v libvpx -crf 10 -b:v 1M -c:a libvorbis myvideo.webm | |
| # convert between image formats | |
| convert myimg.png myimg.jpg | |
| # convert images to webp | |
| # https://www.npmjs.com/package/webp-converter-cli | |
| # to convert all in current directory: | |
| webpc -r | |
| # get first frame of a video (useful for video posters) | |
| # https://stackoverflow.com/a/44073745 | |
| ffmpeg -i inputfile.mp4 -vf "select=eq(n\,0)" -q:v 3 outputimage.jpg |
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