How To Install Gprof On Ubuntu
Sudo aptitude remove libvpx-devcd /mygitsgit clone libvpx./configuremakesudo checkinstall -pkgname=libvpx -pkgversion='1:$(date +%Y%m%d%H%M)-git' -backup=no -deldoc=yes -fstrans=no -defaultInstall libcelt (Optional).This is used to encode VP8 video. Remember to add -enable- libcelt to the FFmpeg./configure line in the next step. This step removes existing libcelt-dev installations gets the latest libcelt-devsource from GIT, configures libcelt-dev options, compiles libcelt-dev, and installs it as a debian package.Code. Sudo aptitude remove libcelt-devcd /mytarswget downloads.xiph.org/releases/celt/celt-0.11.1.tar.gztar xzvf celt-0.11.1.tar.gzcd celt-0.11.1./configuremakesudo checkinstall -pkgname=libcelt -pkgversion='1:$(date +%Y%m%d%H%M)-git' -backup=no -deldoc=yes -fstrans=no -defaultInstall libnut (Optional).Remember to add -enable- libnut to the FFmpeg./configure line in the next step.
How To Install Gperf On Ubuntu
How To Install Gprof On Ubuntu 7
This step removes existing libnut installations gets the latest libnutsource from GIT, configures libnut options, compiles libnut, and installs it as a debian package.Code. Ffmpeg -i input -acodec libfaac -aq 100 -vcodec libx264 -preset slow -crf 22 output.mp4One-pass CRF (Constant Rate Factor) using the medium preset, animation tuning, baseline profile, and level 3.0:Code:ffmpeg -i input -acodec libfaac -aq 100 -vcodec libx264 -preset medium -tune animation -profile baseline -level 3.0 -crf 20 output.mp4Lossless H.264 can be used like most other lossless formats such as archiving, fast encoding (a screencast for example), or as an intermediate file. Use ultrafast if you need to encode quickly and don't care about file size, or veryslow if you need the smallest file you can get and don't care about encoding speed. Creates huge files.Code:ffmpeg -i input -vcodec libx264 -preset ultrafast -crf 0 -acodec copy output.mkvThat's it for installation. You can keep the x264, libvpx, and ffmpeg directories in your home directory if you plan on updating later.
See here for more details oo updating FFmpeg, x264 or VPX.