> Very Cool feature! Why not change sample_spec totally according to > sink's availability, but only sample rate? The default sample_spec > used at initialization, if alsa driver supports various formats/rates, > PA could change sink's sample_spec in order to fit sink-input's > request. Is there any risk or my misunderstanding ? These patches do not always use the rate of the client. This only happens when there's a exact match. In case of a difference between the client rate and the sink rates, SRC will be used. These set of patches are mostly intended to make SRC easier (integer ratios) or unnecessary. One of the main goals was for example that voice calls would be resampled to 48kHz instead of 44.1kHz, since a 3x or 6x resampling takes less resources. But to your point we've discussed with Arun of dynamically updating the number of channels supported for HDMI outputs. When the EDID/ELD is read, we could use the information to automatically make the output multichannel, and possibly set a higher sampling rate. -Pierre
