At Mon, 19 May 2008 12:38:39 +0300 (EEST), Juha Erkkil? wrote: > > I'm trying to get Abode Flash Player working properly on a thin client, > with sound, using Pulseaudio as a sound server. I'm using ALSA > version 1.10.15 and Pulseaudio version 0.9.10 on Ubuntu Hardy, with > Pulseaudio server running as a system-wide daemon on the thin client. > I already outlined the issues on Pulseaudio mailing list on this post: > https://tango.0pointer.de/pipermail/pulseaudio-discuss/2008-May/001793.html, > see also Lennart Poettering's answer: > https://tango.0pointer.de/pipermail/pulseaudio-discuss/2008-May/001796.html. > > I feel the proper solution would involve writing support for > asynchronous notification into ALSA library and I/O-plugin layer. > Currently, Pulse I/O-plugin does not work in the Flash case, because > Flash requires the asynchronous API. On the other hand, Pulse requires > the I/O-plugin layer to work. See the posts by Alexander Indenbaum, > http://mailman.alsa-project.org/pipermail/alsa-devel/2008-April/007033.html, > and Takashi Iwai, > http://mailman.alsa-project.org/pipermail/alsa-devel/2008-April/007335.html, > on this subject. > > I tried to tackle this issue, and did get the signal handling code to > call the Flash audio callback, but I'm new to both ALSA and Pulseaudio, > and it appears there are some issues with it I don't fully understand. > Thus I'm asking: are there any other people who have been looking into > this, or anyone who can tell whether this is a sane thing to do or not, > will it require some nasty hack, or can help with some pointers to > relevant information? > > I'm hoping that implementing the asynchronous API on I/O-plugin layer > would not only fix Flash audio, but might help some other programs too > to achieve network transparent audio. Yeah, the async support is a big missing piece in ioplug. I didn't think it be so important until someone told me that flash player uses it. Sigh. I have experimental patches to add async support to ioplug. With a quick test using jack plugin, it seems working somehow. Will post them alsa-devel now. thanks, Takashi
