Messages in this thread | | | Date | Thu, 5 Jan 2006 15:24:18 +0100 (CET) | From | Jaroslav Kysela <> | Subject | Re: [OT] ALSA userspace API complexity |
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On Thu, 5 Jan 2006, Heikki Orsila wrote:
> Alistair John Strachan <s0348365@sms.ed.ac.uk> wrote: > > On Tuesday 03 January 2006 23:10, Tomasz K?oczko wrote: > > 2) ALSA API is to complicated: most applications opens single sound > > stream. > > > FUD and nonsense. I've written many DSP applications and very often I can > > recycle the same code for use in them. > > I've long ago stopped using ALSA API because it is broken. But if you > wanted to make ALSA usable by real people you might considering adding 3 > functions (there are ~300 already so not much loss):
This sentence makes this in my mind: real people = lazy people. The error codes are documented well. Also, aplay in the alsa-utils package has good error recovery code including test pcm.c utility in alsa-lib.
> err = alsa_simple_pcm_open(nchannels, sampleformat, samplingrate, frames_in_period /* 0 for automated default */ ); > err = alsa_simple_writei(); /* handless signal brokeness automagically */ > alsa_simple_close();
Well, it's better to create only "fast parameter setup" and "default error recovery" functions.
> Basically ogg123/mpg123 like applications would only need 3 alsa calls. > Now everyone reimplementing their own buggy versions of simple mechanisms.
While "official" examples exists for a long time. Also, we already noted that we are not best documentation writers, but everytime when we ask for help we hear nothing from other people.
Jaroslav
----- Jaroslav Kysela <perex@suse.cz> Linux Kernel Sound Maintainer ALSA Project, SUSE Labs - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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