On Die, 2002-09-17 at 17:33, Ondrej Certik wrote: > You are right, that the problem is endiannes, because > I wanted to know what is going on, so I switched back > to ALSA and > modified the Alsa output plugin for xmms, so that it > swaps > the endiannes of the data, which goes through it and > ---- > the ogg/mp3 now plays very well, but wav causes the > noise.
Oh dear, like that it probably gets swapped at least twice in software... > So there is only one question: which code should I > modify > to swap the endiannes? Probably the input plugin for > ogg/mp3? > Or both input plugin for wav and alsa output plugin? > Or even alsa driver? Everything should work. > > I don't exactly understand which fault it is. If I > understand > it well, than Alsa expects input in native endiannes. > So > on ppc, the alsa-xmms plugin must send the output in > big-endian. > So the change has to be in ogg plugin. But I don't > know > which endiannes xmms expect its data. So maybe > changing ogg plugin > isn't the solution. Ideally, the input plugins would provide data in native endianness, and the other stages would simply pass it through. I don't know how many interfaces there are between input plugin and output device, you'd have to make sure that it's labeled correctly at each of them. -- Earthling Michel Dänzer (MrCooper)/ Debian GNU/Linux (powerpc) developer XFree86 and DRI project member / CS student, Free Software enthusiast
