Setting initial volume via pa_stream_connect_playback() does not work

[slomo]

Hi, with pulseaudio 0.9.10 (the current Debian package) it's not possible to set the initial volume via pa_stream_connect_playback(). This doesn't work with my own code and doesn't work with paplay.

The backend used is ALSA and the ymfpci driver.

[lennart]

You are aware that this won't change the sink volume, but only the sink input volume?

Also, note that stuff like module-volume-restore might overwrite what you specified.

[slomo]

No, I wasn't aware of that. But then paplay's volume parameter is confusing, I'd expect it to simply scale the audio played according to that volume.

To specify a bit more what I want, I'm adding a volume property to the GStreamer pulsesink. This should act as if the audio is simply scaled.

My plan was to a) set a initial volume according to that property and b) adjust the volume whenever this property is changed. How can I do that? Is it possible at all? For b) there seems to be pa_context_set_sink_volume_by_index(), right?

[lennart]

I think we have a misunderstanding here what a "sink" is. The GstPulseSink? wraps a "sink input" in pulse talk, which then connects to a proper "sink".

I think the problem you might be encountering is that module-volume-restore overwrites the volume you passed from what it restored. I need to fix that.

[lennart]

It is now fixed if you use the new module-stream-restore instead of module-volume-restore. m-s-r has been made made the default in 0.9.12.