Re: [Alsa-user] Dumping 96000, S24_BE using "file" plugin

[Rene H. <ren...@ke...>]

On 11-11-07 01:40, Oliver Lupton wrote:

> Rene Herman wrote:

>> I'm trying to use the "file" plugin to dump stereo 96 kHz, S24_BE LPCM from 
>> DVD to a file:
>>
>> $ mplayer -ao alsa:device=file=track01 -vo null dvd://1 -chapter 1-1
>>
>> which isn't working:
>>
>> | ==========================================================================
>> | Opening audio decoder: [dvdpcm] Uncompressed DVD/VOB LPCM audio decoder
>> | AUDIO: 96000 Hz, 2 ch, s24be, 4608.0 kbit/100.00% (ratio: 576000->576000)
>> | Selected audio codec: [dvdpcm] afm: dvdpcm (Uncompressed DVD/VOB LPCM)
>> | ==========================================================================
>> | [AO_ALSA] Unable to set format: Invalid argument
>> | Could not open/initialize audio device -> no sound.
>> | Audio: no sound
>> | Starting playback...
>>
>> Dumping to file using this method works fine for stereo 48 kHz, S16_BE LPCM 
>> as more regularly found on LPCM DVDs.
>>
>> Is this expected? A bug? If latter, where?
>>
>> Rene.
> 
> Not that it really answers your question, but wouldn't this be easier to
> do with mplayer's -ao pcm option?

If it worked it would, but it not doing such is the reason I was trying for 
the file plugin:

$ mplayer dvd://1 -chapter 1-1 -vc null -vo null -ao pcm:file=track01

| ==========================================================================
| Opening audio decoder: [dvdpcm] Uncompressed DVD/VOB LPCM audio decoder
| AUDIO: 96000 Hz, 2 ch, s24be, 4608.0 kbit/100.00% (ratio: 576000->576000)
| Selected audio codec: [dvdpcm] afm: dvdpcm (Uncompressed DVD/VOB LPCM)
| ==========================================================================
| [AO PCM] File: track01.lpcm.wav (WAVE)
| PCM: Samplerate: 96000Hz Channels: Stereo Format s16le
| [AO PCM] Info: Faster dumping is achieved with [ ... ]
| [AO PCM] Info: To write WAVE files use -ao pcm:waveheader (default).
| AO: [pcm] 96000Hz 2ch s16le (2 bytes per sample)
| Starting playback...

That is, I then have a stereo 96 kHz S16_LE file, whereas the point was 
getting a stereo S24_BE (or LE for all I care, but S24) file.

So then the usual open-sores saga of finding _some_ method where you don't 
first have to spend three days stumbling over bugs and oddities before you 
can get anything done commences...

Growl. But thanks for the comment and all that ;-)

Rene.