Mobile Video Streaming Project

As of late the SVN builds of ffmpeg have been changing the configuration args to compile ffmpeg and encoding options after the software is compiled. I wanted to befiely mention the changes I have noticed.

My original compile options for ffmpeg : --extra-cflags=-I/usr/local/include --extra-ldflags=-L/usr/local/lib --disable-debug --enable-mp3lame --enable-libogg --enable-vorbis --enable-faad --enable-faadbin --enable-faac --enable-pthreads --enable-xvid --enable-x264 --enable-a52 --enable-a52bin --enable-amr_nb --enable-amr_nb-fixed --enable-amr_wb --enable-memalign-hack --enable-shared --enable-gpl

Things that have changed are the addition of adding “lib” do most everything.. So –enable-xvid will be –enable-libxvid. Most of these can be found by typing ./configuration –help

So this is just a fyi if you haven’t compiled ffmpeg in a while to prob add “lib” to most everything

The next changes have to do when encoding video and most of them deal with changes in the audio switches.

changes:

old: -acodec amr_nb
new: -acodec libamr_nb

old: -ab 12
new: -ab 12.2k or various other options but all require “k” behind them.

old: -acodec aac
new: -acodec libfaac

hopefully this helps out and your not pulling your hair out or Googling around to find the changes cause well apprently their is no good change log with this type of information.

Filed under: Encoding, General Info by admin