[Ffmpeg-devel] using ffmpeg to encode an internet stream

[Cyrus Adkisson]

Yeah I'm able to listen to both stream with mplayer. I can't get 
mencoder to work, though. Is there a way to pipe the mplayer output into 
ffmpeg and code it down into an mp3 instead of sending it out the speakers?

(Sorry for my ignorance on this stuff. I deal mostly with high level web 
apps and only get into the nitty-gritty when I need to. Cheers to 
everyone who works hard on the bits and bytes of ffmpeg and mplayer.)

Cyrus

Benjamin Larsson wrote:

> Hi,
>
> Cyrus Adkisson wrote:
>
>> I'm still at a loss here. Can someone who is more experienced with 
>> ffmpeg help me figure out the correct command-line for what I'm 
>> trying to accomplish?
>>
>> The two streams I want to capture are 
>> http://mmslb.eonstreams.com/wbalam?MSWMExt=.asf and 
>> http://audio.wtopnews.com/stream/real/wtopnews.smil .
>>
>> My best attempt at the first one failed:
>> >>>>>>>>>>>>>>
>> [cyrus at laptop ~]$ ffmpeg -f asf -i 
>> http://mmslb.eonstreams.com/wbalam?MSWMExt=.asf -y -vn -acodec mp3 
>> outfile.mp3
>> ffmpeg version CVS, build 3211266, Copyright (c) 2000-2004 Fabrice 
>> Bellard
>>  configuration:  --enable-mp3lame --enable-shared --cpu=x86
>>  built on Aug 30 2005 22:41:50, gcc: 3.4.4 20050721 (Red Hat 3.4.4-2)
>> http://mmslb.eonstreams.com/wbalam?MSWMExt=.asf: Error while opening 
>> file
>> >>>>>>>>>>>>>>>>>>
>>
> the first stream I think ffmpeg is not clever enough to follow the 
> redirection file that the address really is, mplayer could stream
> it without any problem.
>
>> as did my attempt at the second:
>> >>>>>>>>>>>>>>>>>>
>> [cyrus at laptop ~]$ ffmpeg -f rm -i 
>> http://audio.wtopnews.com/stream/real/prerolls/real_audio/wtop.rm -y 
>> -vn -acodec mp3 outfile.mp3
>> ffmpeg version CVS, build 3211266, Copyright (c) 2000-2004 Fabrice 
>> Bellard
>>  configuration:  --enable-mp3lame --enable-shared --cpu=x86
>>  built on Aug 30 2005 22:41:50, gcc: 3.4.4 20050721 (Red Hat 3.4.4-2)
>> [NULL @ 0xb7e33150]Unsupported video codec
>> Input #0, rm, from 
>> 'http://audio.wtopnews.com/stream/real/prerolls/real_audio/wtop.rm':
>>  Duration: 00:00:03.8, start: 0.000000, bitrate: N/A
>>  Stream #0.0: Audio: sipr, 16000 Hz, mono, 16 kb/s
>>  Stream #0.1: Data: 0x0000
>> Output #0, mp3, to 'outfile.mp3':
>>  Stream #0.0: Audio: mp3, 16000 Hz, mono, 64 kb/s
>> Stream mapping:
>>  Stream #0.0 -> #0.0
>> Unsupported codec (id=0) for input stream #0.0
>> >>>>>>>>>>>>>>
>>
> This one is abit trickier, even if ffmpeg is capable enough to stream 
> it correcly there is no support for the sipr codec. Mplayer was capable
> to stream it though.
>
>> Can anyone capture these streams successfully?
>>
> I guess I could just not with mplayer.
>
>> Cyrus
>>
>
> MvH
> Benjamin Larsson
>
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