On Tue, 6 Jan 2009, Pavel Hofman wrote: > Pavel Hofman napsal(a): > > Hello, > > > > I am working on a file plugin patch to allow adding PCM parameters > > (rate, format) to the name of the file created (plus the ability to run > > an external command via popen, such as upsampling with sox). I got stuck > > in trying to obtain these parameters in pcm_file.c:_snd_pcm_file_open(). > > Is it actually possible or the information is not available at the time > > of opening the file (and the whole patch is thus nonsense)? > > > > Thanks a lot for help. > > > > I am now opening the output file in pcm_file.c:snd_pcm_file_write_bytes. > Surprisingly it seems to work fine. Could such hack be accepted as a > patch to the plugin (if coded properly)? Is there a better place to open > the file? The file should be opened in the hw_params callback (all PCM parameters are known in this time). Also, extending filename with PCM parameters should be optional (configurable). But the idea looks nice. Jaroslav ----- Jaroslav Kysela <perex@xxxxxxxx> Linux Kernel Sound Maintainer ALSA Project, Red Hat, Inc. _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
