Change Request: Only use SW volume control

Hi,
please write your comments to the following change request.


The HW (sound driver) volume control should not be used. Instead only 
the SW should deliver a volume (and balance) modified stream to the 
sound card.


Benefits:

1. Using the Soundcard volume control changes the volume of all sounds 
which is
1.1 bad because e.g. system sounds are changed in the volume
1.2 not understandable for the user. Why does the player volume change 
the system sounds volume?
1.3 doublicates a system functionality. There is already an overall 
volume control.

2. Simplifies SW design
This simplifies the interface to the sound driver. No longer are get and 
setVolume functions needed.

3. The current set volume functionality is buggy anyway and will never 
work correctly
3.1 getVolume is called before Init in the sound driver. If you don't 
belive me test it!!!
3.2 In some cases (e.g. alsa diver) this functionality can never be 
implemented correctly.
The number of channels can change with every song, so what channels do 
we set for Alsa driver?

4. Implementation of ID3V2 tags will need a constant change in volume
The ID3v2 tags define special tags to modify the played volume and other 
parameters.
If we want to support this tag the volume would change for every song.

Risks:
No. The functionality is already there.

Efford:
Hard-code the SW volume control functionality. Remove setVolume and 
getVolume from the output drivers.


BR,
Ralf

(Maybe I work to much. In the end I will send you actions points with 
Notes and organize telephon conferences.... :)



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