Bug#495274: ffmpeg (arm) stops with the error message "Could not read stream parameters"

[Peter Bauer]

Hi Martin !

I have seen ffmpeg working on my slug in an early version of etch and also
on my ubuntu based laptop (syntax exactly like in the bug report)

# ffmpeg -r 30 -s cif -f video4linux2 -i /dev/video0 http://localhost:8090/feed.ffm
/* ffmpeg tries to read the stream parameters from http://localhost... !
/* don't forget to start ffserver before !
/* The video source (webcam) is read from /dev/video0 and should be streamed according to the stream parameters

see here: ( it seems like the syntax for ffmpeg changed a bit, but i 
tried several possibilities without success )
http://www.nslu2-linux.org/wiki/HowTo/AddUsbWebcam
section: PWC: The Debian NSLU2 method

Currently I am out of time to compile the ffmpeg package myself.
Could you please try to check the syntax/reproduce the  error  ?

Bye,
Peter

Martin Michlmayr schrieb:
> Peter, did you see Reinhard question below regarding your bug report?
>
> * Reinhard Tartler <siretart at tauware.de> [2008-08-16 09:36]:
>   
>> tags 495274 stable
>> severity 495274 normal
>> stop
>>
>> Peter Bauer <peba at inode.at> writes:
>>
>>     
>>> The problem is in the arch: arm in Debian 4.0
>>> Hardware:  Nslu2 or N2100/ALL6500 NAS boxes
>>>
>>> ALL6500:~# uname -a
>>> Linux ALL6500 2.6.18-6-iop32x #1 Wed Jun 18 16:51:50 UTC 2008 armv5tel GNU/Linux
>>>
>>>
>>> ALL6500:~# ffmpeg -r 30 -s cif -f video4linux2 -i /dev/video0  http://localhost:8090/feed.ffm
>>> FFmpeg version SVN-rUNKNOWN, Copyright (c) 2000-2004 Fabrice Bellard
>>>   configuration:  --enable-gpl --enable-pp --enable-pthreads --enable-vorbis --enable-libogg --enable-a52 --enable-dts --enable-libgsm --enable-dc1394 --disable-debug --enable-shared --prefix=/usr 
>>>   libavutil version: 0d.49.0.0
>>>   libavcodec version: 0d.51.11.0
>>>   libavformat version: 0d.50.5.0
>>>   built on Mar 26 2007 19:25:46, gcc: 4.1.2 20061115 (prerelease) (Debian 4.1.1-21)
>>> [video4linux2 @ 0x4009aaf0][3]Capabilities: 5000001
>>> Input #0, video4linux2, from '/dev/video0':
>>>   Duration: N/A, bitrate: 36495 kb/s
>>>   Stream #0.0: Video: rawvideo, yuv420p, 352x288, 36495 kb/s, 30.00 fps(r)
>>> Could not read stream parameters from 'http://localhost:8090/feed.ffm'
>>> 127.0.0.1 - - [Fri Aug 15 21:57:28 2008] "GET /feed.ffm HTTP/1.0" 200 4165
>>>       
>> Thank you for reporting a problem with a package in debian. I do not
>> have access to arm hardware, so I would need help from your side to
>> reproduce the issue.
>>
>> However just by looking at your commandline:
>>
>> # ffmpeg -r 30 -s cif -f video4linux2 -i /dev/video0 http://localhost:8090/feed.ffm
>>
>> It looks like you are trying to grab from /dev/video0 and write to an
>> http stream? Please elaborate what you are trying to do, it currently
>> looks like an usage error to me.
>>
>> On that basis, I've adjusted the bug severity.
>>
>> If you can, please try to compile a newer upstream version, like the
>> version currently found in debian/unstable. That would make reproducing
>> the issue for me much easier.
>>
>> -- 
>> Gruesse/greetings,
>> Reinhard Tartler, KeyID 945348A4
>>
>>
>>
>>     
>
>