[MPlayer-users] Problems coding to 3gp

[Sebastián Lacuesta]

Forgot to mention that the batch process can receive any type of video.

El 9 de marzo de 2010 15:41, Sebastián Lacuesta <sebastianlacuesta at gmail.com
> escribió:

> Well, thanks for the -af channels=1 detail, it "worked" for files with
> multiple channels, but sound still is fast. Actually, now I use ffmpeg to
> convert to 3gp, but first I need to decode the original file using mencoder
> because it seems to support more formats. I have a batch process that
> receives a video and then it needs to convert it to 3gp. Now I convert the
> original video to flv (I needed the video in that format before too) using
> mencoder and then I encode it to 3gp using ffmpeg. I don't know if flv is a
> good choice as intermediate format.
> If I could use mencoder directly, I guess the process would be faster,
> without the need of an intermediate file. I have reported it some time ago:
> http://bugzilla.mplayerhq.hu/show_bug.cgi?id=1603 I haven't see any
> resolution, it leaves as "NEW".
> Is there any better choice than flv as intermediate format/audio
> codec/video codec?
> Thanks!
>
> 2010/3/9 Carl Eugen Hoyos <cehoyos at ag.or.at>
>
> Sebastián Lacuesta <sebastianlacuesta <at> gmail.com> writes:
>>
>> > mencoder AnInputFile.ext -o TheOutputFile.3gp -of lavf -oac lavc -ovc
>> lavc
>> > -srate 8000 -vf scale=176:144 -ofps 12 -channels 1 -lavcopts
>> > vcodec=h263:acodec=libopencore_amrnb:abitrate=12200
>>
>> Did you try FFmpeg?
>> ffmpeg -i AnInputFile.ext -acodec libopencore_amrnb -s 176x144 -ac 1 -ar
>> 8000
>> -ab 12.2k TheOutputFile.3gp
>>
>> To downmix, you need -af channels=1, not -channels 1 (see man mplayer).
>>
>> Carl Eugen
>>
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>
>