These questions seem to have gone unanswered... On Wed, 2011-06-22 at 17:47 +0530, Himanshu Chug wrote: > Hi > > 1. I am trying to understand the how PA mixes two different freq streams, > say I am playing 2 playback streams one is 8000hz wav and other of 44100 hz > wav at the same time ? how is re-sampling happens in PA level ? at what freq > PA re-sample given streams in this e.g before mixing and rendering on > device? Each sink has some static sample rate configured. When the sink requests more data from the sink inputs, the input data is resampled to the sink's sample rate. > 2. Which part of PA code/ module is doing re-sampling and mixing here? When the sink implementation wants more data from the inputs, it calls pa_sink_render() or some of its variants. > 3. I want to mute/unmute sink inputs on the fly ( i.e when the stream is > running/playing), what PA API's can be used to achieve this ? Client api or internal server api? For clients there's pa_context_set_sink_input_mute(). The internal api has pa_sink_input_set_mute(). -- Tanu
