Hi,
Takashi Iwai wrote:
At Wed, 02 Jul 2008 13:48:18 +0200, Wolfgang Rosenauer wrote:
Hi,
I'm new to to this list (and also Alsa) so please forgive me some newbie questions you probably find ;-)
I have an application which does simple PCM output to Alsa. It works so far (if pulseaudio is not used but that's another issue). But if I try to run the app (which is compiled for 32bit) on a 64bit Linux system it fails at snd_pcm_start() with the following error:
"Datenübergabe unterbrochen (broken pipe)"
It means that no data is present on the buffer.
That could perfectly be the case. But that isn't really a 64bit system thing, is it? I admit there is most likely something wrong with the app as it is now :-( The thing is that we can't guarantee that there are always audio frames in the buffer since we get it as a stream from somewhere else and need to do A/V sync. Currently we just snd_pcm_start() and only afterwards write to the buffer as the data comes in what as I understood now is not the way it's gonna work?
I've tried to set a sensible start_threshold and just leave out the snd_pcm_start() but that created a very distorted sound output (but no broken pipe indeed).
Wolfgang