[FFmpeg-user] Problems with aac encoding using latest zeranoe build for windows

[Kosta Vlotis]

On Wed, Jan 25, 2012 at 7:02 PM, Lou <lou at lrcd.com> wrote:
> On Wed, 25 Jan 2012 18:35:04 -0500
> Kosta Vlotis <kosta.brazzers at gmail.com> wrote:
>
>> here is the Output:
>>
>> C:\Users\kosta.placeV2\Desktop\FFMPEG BATCH\3d watermark testing>ffmpeg -i "inp
>> ut\Kosta.mov" -vcodec libx264 -b:v 8000k -bt 8000k -fpre ".\presets\libx264-slow
>> .ffpreset" -s 1920x1080 -aspect 16:9 -vf "movie=wgp-video-watermark.png,scal
>> e=1920:1080 [logo]; [in] [logo] overlay=main_w-overlay_w-0:main_h-overlay_h-0 [o
>> ut]" -acodec aac -b:a 128k -ar 44.1k -ac 2 -threads 0 -y ".\output\Kosta_1080p_8
>> 000.mp4"
>
> For future reference please use a simple command that still gives you
> the same error. For example:
>
> ffmpeg -i input -c:a aac -ar 44.1k -ac 2 -vn output.mp4
>
> Although I understand that it can be hard to figure out what options
> you can eliminate and still provide relevant information.
>
>> ffmpeg version N-37063-g14d94a1 Copyright (c) 2000-2012 the FFmpeg developers
>>   built on Jan 23 2012 17:37:46 with gcc 4.6.2
>>   configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-ru
>> ntime-cpudetect --enable-avisynth --enable-bzlib --enable-frei0r --enable-libope
>> ncore-amrnb --enable-libopencore-amrwb --enable-libfreetype --enable-libgsm --en
>> able-libmp3lame --enable-libopenjpeg --enable-librtmp --enable-libschroedinger -
>> -enable-libspeex --enable-libtheora --enable-libvo-aacenc --enable-libvo-amrwben
>> c --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --enable-
>> libxvid --enable-zlib
>
> [...]
>
>> [NULL @ 039E08C0] Codec is experimental but experimental codecs are not enabled,
>>  see -strict -2
>
> ^ This is the important message. The native FFmpeg AAC encoder (-c:a
> aac) is considered experimental, and therefore requires "-strict
> experimental" (or perhaps "-strict -2") in the command.
>
> Alternatively, since your ffmpeg supports it, you can use "-c:a
> libvo_aacenc" instead of "-c:a aac". It won't require "-strict
> experimental" and most people seem to consider it to be a better
> encoder.
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alright, thanks for the info.
that worked! thanks for the help.