[LAD] Mplayer decode to stdout

[Robin Gareus]

Hi Alfs, *,

sorry, a typo slipped in:

On 01/29/2012 01:37 AM, Robin Gareus wrote:
> On 01/28/2012 11:35 PM, Alfs Kurmis wrote:
>> Hi Experts.
>>
>> For my small multimedia audio project i wanna use mplayer as external decoder.
>> As usually via pipe , for example so
>> mplayer -af resample=44100:0:1,channels=2,format=s16le -ao 
>> pcm:nowaveheader:file=/dev/stdout -quiet -really-quiet 'saund_file.ext' | 
>> nextprog -options ...
>> or so
>> http://martini.pudele.com/radio/programming/audio/mplayerdecso01.c
>>
>> I prefer output to pipe, not FIFO.
>>
>> It seems that mplayer also all messages put to stdout :(
> 
> That's probably why mplayer devs recommend using mkfifo (named pipe)
> instead of stdout.. 'mencoder' can do it.
> 
> If you need to support a variety of unknown formats and codecs: ffmpeg
> is an alternative and gstreamer might be one.
> 
> ffmpeg -i /some/file -f u16le -acodec pcm_s16le -ar 44100 - \

I forgot a the "-c 2" option to enforce stereo.
The line should have read:

ffmpeg -i /some/file -f u16le -acodec pcm_s16le -ar 44100 -c2 - \

> | jack-stdin system:playback_1 system:playback_2
> 
> on that note, `jack-stdout` can capture and pipe raw PCM data from any
> JACK-application including `mplayer -ao jack /some/file`. YMMV.
> 
> HTH,
> robin
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