Anuj Pahuja alasin
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| // List available formats for ffmpeg | |
| ffmpeg -pix_fmts | |
| // Convert a 720x480 nv12 (yuv 420 semi-planar) image to png | |
| ffmpeg -s 720x480 -pix_fmt nv12 -i captdump-nv12.yuv -f image2 -pix_fmt rgb24 captdump.png | |
| // Convert a 640x480 uyvy422 image to png | |
| ffmpeg -s 640x480 -pix_fmt uyvy422 -i frame-000003.yuv -f image2 -pix_fmt rgb24 captdump.png | |
| // Display a 640x480 grayscale raw rgb file |
isaacs
/ node-and-npm-in-30-seconds.sh
Last active
April 14, 2025 11:07
Use one of these techniques to install node and npm without having to sudo. Discussed in more detail at http://joyeur.com/2010/12/10/installing-node-and-npm/ Note: npm >=0.3 is *safer* when using sudo.
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| echo 'export PATH=$HOME/local/bin:$PATH' >> ~/.bashrc | |
| . ~/.bashrc | |
| mkdir ~/local | |
| mkdir ~/node-latest-install | |
| cd ~/node-latest-install | |
| curl http://nodejs.org/dist/node-latest.tar.gz | tar xz --strip-components=1 | |
| ./configure --prefix=~/local | |
| make install # ok, fine, this step probably takes more than 30 seconds... | |
| curl https://www.npmjs.org/install.sh | sh |