[MPlayer-users] invalid VBR header. help, please

Mauro Condarelli mc5686 at mclink.it
Sun Mar 13 15:03:42 CET 2005


Nico Sabbi wrote:

> Mauro Condarelli wrote:
>
>>
>> How can I record directly from bt878 audio?
>> someone suggested using the btaudio kernel module, but that does not 
>> look right, since that's an oss module, while I use (to be precise: 
>> "debian sarge uses") alsa and I know the bt87x module is loaded. I 
>> can also set for recording using "alsamixer -c1", but I have been 
>> unable to divine what to pass to the "-tv ...:alsa:device=" 
>> parameter. The fine manual says to look at the "-ao alsa" option, but 
>> I found that slightly cryptic :-(. If it is of any use: my 
>> /proc/asound/devices contains:
>> ================================
>> 0: [0- 0]: ctl
>> 20: [0- 4]: digital audio playback
>> 27: [0- 3]: digital audio capture
>> 26: [0- 2]: digital audio capture
>> 25: [0- 1]: digital audio capture
>> 16: [0- 0]: digital audio playback
>> 24: [0- 0]: digital audio capture
>> 33: : timer
>> 32: [1- 0]: ctl
>> 57: [1- 1]: digital audio capture
>> 56: [1- 0]: digital audio capture
>> ================================
>>
>
> one of the captures I guess.
> My saa7134 has something similar: an onboard audio decoder that passes 
> data through pci.
> I use oss, not alsa, so my command line is
> -tv ...:adevice=/dev/dsp1: ...

No, AFAIK this is for oss!
I have absolutely *no* /dev/dsp# available!
What the fine manual says is:
=============
alsa
ALSA 0.9/1.x audio output driver.
mmap
Sets experimental mmap‐mode (does not work for more than
2 channels).
noblock
Sets noblock‐mode.
device=<device>
Sets the device name. Replace any ’,’ with ’.’ and any
’:’ with ’=’ in the ALSA device name. Make sure you do
not set this when you want hwac3 output via S/PDIF, un‐
less you really know how to set it correctly.
=============
... which is not-so-enlightening for me :-(((

> and remember to use aumixer once after module load.

Yup!
I already fell on that trap and the scars still show :) :)

Thanks for Your answer!
Mauro




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