[FFmpeg-user] Transcode videos

[Steve Boyer]

On Wed, Jul 16, 2014 at 10:17 AM, Felipe Lacerda <felipe.lacerda at upx.com.br>
wrote:

> Hello,
>

Hi!

>
> I'm arrested in this part of installation below, can you help me please?
>

I'll do my best!

>
> root at s5-ul [~]# ffmpeg --prefix=/usr/local/cpffmpeg --enable-shared
> --enable-nonfree --enable-gpl --enable-pthreads --enable-libopencore-amrnb
> --enable-decoder=liba52 --enable-libopencore-amrwb --enable-libfaac
> --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libx264
> --enable-libxvid --extra-cflags=-I/usr/local/cpffmpeg/include/
> --extra-ldflags=-L/usr/local/cpffmpeg/lib --enable-version3
> --extra-version=syslint
>
ffmpeg version N-42148-g4330b8b-syslint Copyright (c) 2000-2012 the FFmpeg
> developers

  built on Jul  2 2012 20:35:39 with gcc 4.1.2 20080704 (Red Hat 4.1.2-52)
>   configuration: --prefix=/usr/local/cpffmpeg --enable-shared
> --enable-nonfree --enable-gpl --enable-pthreads --enable-libopencore-amrnb
> --enable-decoder=liba52 --enable-libopencore-amrwb --enable-libfaac
> --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libx264
> --enable-libxvid --extra-cflags=-I/usr/local/cpffmpeg/include/
> --extra-ldflags=-L/usr/local/cpffmpeg/lib --enable-version3
> --extra-version=syslint
>

I think you are making it out to be much harder than it is... What I see is
that you are invoking the FFmpeg command - it is not the "apt-get install
ffmpeg" avconv version, but from the FFmpeg developers. Your command above
is contains of all of the ffmpeg compile configuration options. FFmpeg is
already installed and running as evidenced by the copyright information,
configuration options, and versions.


>   libavutil      51. 63.100 / 51. 63.100
>   libavcodec     54. 32.100 / 54. 32.100
>   libavformat    54. 14.100 / 54. 14.100
>   libavdevice    54.  0.100 / 54.  0.100
>   libavfilter     3.  0.100 /  3.  0.100
>   libswscale      2.  1.100 /  2.  1.100
>   libswresample   0. 15.100 /  0. 15.100
>   libpostproc    52.  0.100 / 52.  0.100
> *Unrecognized option '-prefix=/usr/local/cpffmpeg'*
> *Failed to set value '--enable-shared' for option
> '-prefix=/usr/local/cpffmpeg'*
>

FFmpeg is saying here "I don't know what -prefix means. It isn't built into
my command list. Give me an option I know how to do, like -map, -ss, -i for
input, etc and I'll get to it!"

FFmpeg is installed and ready to go to work. It's already configured,
setup, and now you can go back to your e-mail chain (started July 3rd).


>
> Thanks,
>
> Welcome!


> Felipe Lacerda Kneipp
>

Steve B