[MPlayer-dev-eng] ANNOUNCE: new audio filter layer in use

Gustavo Sverzut Barbieri gsbarbieri at yahoo.com.br
Sun Oct 6 03:30:40 CEST 2002


   We can change the af to use in cmd line now? (as with vf) Some time
ago, we can't.


   BTW, can I use mencoder to rip audio cds? (stupid, but I don't think
it's in manual)

   Gustavo


 --- Arpi <arpi at thot.banki.hu> escreveu: > Hi,
> 
> Ok i've finally finished and commited the integration of Anders' new
> audio
> filter library. I have to say it works fine!
> 
> But here are some notes:
> 
> mplayer's -srate has different function now: it sets the playback
> samplerate
> (actually it's only a hint for the selected -ao driver, it can
> _and_should_
> override if not acceptable)
> 
> it depends on the ao_data fields channels,samplerate,bps(bytes per
> _second_)
> and format (see afmt.h), so every -ao driver HAVE TO set up them
> properly.
> please check your ao driver!
> 
> the ao driver should not fail if channels/format/rate not acceptable
> - they
> should change them (in ao_data) to the wanted/accepted values. the
> conversion will be done automatically by libaf then.
> 
> for example, DVB's -ao mpegpes only support 32,44,48,96 khz, only
> 16bit
> big-endian stereo format. the conversion is now happen by libaf.
> 
> about mencoder:
> -channels option is now common, meaning for both mplayer and
> mencoder:
> number of output channels. note, that it's also a hint only, the
> encoder/ao
> driver may ignore it if not supported value.
> 
> -ovc pcm and -ovc mp3lame now initializes and uses libaf for
> conversion, so
> you can convert any audio format. note, that no automatic samplerate
> selection for mp3, so if your source is nonstandard samplerate, you
> have to
> choose and set (-srate) one mp3 standard rate.
> 
> 
> A'rpi / Astral & ESP-team
> 
> --
> Developer of MPlayer, the Movie Player for Linux -
> http://www.MPlayerHQ.hu
> _______________________________________________
> MPlayer-dev-eng mailing list
> MPlayer-dev-eng at mplayerhq.hu
> http://mplayerhq.hu/mailman/listinfo/mplayer-dev-eng 

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