Re: [Alsa-user] buffer size for alsa plugin
John P. Hartmann wrote: > Not knowing much about Jack except that it can drive ALSA, would the plugin > be easier in that environment? Jack runs with a fixed sample rate, sample format, and buffer size. Regards, Clemens -- Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
Re: [Alsa-user] buffer size for alsa plugin
remu kelly wrote: > i have to create a external alsa filter plugin in which the "transfer" > function will receive the input buffer, with say size "x". but then we will > have to apply some algo on input data and the output buffer will be of size > "2x". External filter plugins cannot change the sample rate. You could try writing an external I/O plugin and managing the slave device yourself, but it might be a better idea to require that the data must be upsampled before your plugin sees it. Regards, Clemens -- Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
[Alsa-user] buffer size for alsa plugin
Hi alsa team, I need some help regarding alsa external filter plugin. i have to create a external alsa filter plugin in which the "transfer" function will receive the input buffer, with say size "x". but then we will have to apply some algo on input data and the output buffer will be of size "2x". but this "2x" buffer when will be given to slave pligin it will only consider "x" size of data as valid, so how can we tell the slave plugin that the valid size is "2x"? also similar to buffer size we have to get input sample rate as 48K, but the output buffer of "2x" applies to 96K sample rate. Please let us know how to implement this change of buffer size and sample rate within the plugin and how to communicate it to the slave plugin. Regards, remu -- Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
