[MPlayer-users] Where is amr_nb code? (SOLUTION)

[Nico Sabbi]

Mario Valle wrote:

> Maybe could be useful to put somewere the instructions to add 3GPP 
> movie support in mplayer. Here is, answering my own question, what I 
> have found:
>
> 1) Download and unpack the latest mplayer CVS. I used MPlayer-20050414
>
> 2) Go to http://www.3gpp.org/ftp/Specs/latest/Rel-5/26_series/
>
> 3) From here download the files:
>
>     26073-5??.zip
>     26104-5??.zip
>     26204-5??.zip
>
> 4) Unzip 26073-5??.zip and the contained 26073-5??_ANSI_C_source_code.zip
>    rename the resulting c_code directory to MPlayer-.../libavcodec/amr
>
> 5) Unzip 26104-5??.zip and the contained 26104-5??_ANSI_C_source_code.zip
>    rename the resulting c_code directory to 
> MPlayer-.../libavcodec/amr_float
>
> 6) Unzip 26204-5??.zip and the contained 26204-5??_ANSI-C_source_code.zip
>    rename the resulting c_code directory to 
> MPlayer-.../libavcodec/amrwb_float
>
> 7) Execute the usual ./configure, check the messages that should 
> contain something like:
>     Checking for amr narrowband ... yes
>     Checking for amr narrowband, fixed point ... no (disabled by amr_nb)
>     Checking for amr wideband ... yes
>
> 9) make, make install as usual
>
> 8) Enjoy your stamp-size movies...
>
>                 mario
>

what is AMR? another variant of aac? and what is 3gp?
Thanks,
    Nico