Hello, I am trying to write a pcm_jack plugin, which would allow existing alsa applications to use jack as input/output, without changing any code. The plugin will use some internal circular buffer for the data transfer between the alsa read/write calls and the async jack process callback.
I have been studying the code of the various plugins, had some private communication on the subject with Paul Davis and Abramo, and written some code, but I am rather stuck... Your help would be greatly appreciated. As far as I understand, the easiest solution would be to have a pcm_plug plugin inbetween the alsa application and the pcm_jack plugin, to take care of sample rate and data format conversion. Then the pcm_jack plugin simply restrict it configuration space to the sample rate and data format (float) supplied by the jack server. Is this the right approach? Then, what would be the right place to do this? In the hw_refine or in the hw_param function? Or somewhere else even? And how - what _snd_pcm helper functions should I best use? Jack will allow to open as many ports as necesary, so I will open one port for each channel. Is the prepare function the correct place to do so? Most pcm plugins use a slave, but as the pcm_jack plugin will be an end-point, it will not have any slave. Do I see this correctly? Thanks in advance for any reply! Maarten ------------------------------------------------------- This SF.NET email is sponsored by: SourceForge Enterprise Edition + IBM + LinuxWorld = Something 2 See! http://www.vasoftware.com _______________________________________________ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
