Having been a user of SDL2 for about a year now, I have come to really
appreciate its simplicity and powerful feature set. However, there are
some things that limit me in my work which mainly centers around audio.
I have made some sporadic posts to this list regarding these issues, but
figured I would collect them in a single message.
- Latency
I have planned to write a small mixer on top of SDL’s audio subsystem
for a while. However, since SDL uses API’s like DirectSound and XAudio2
on Windows for example, the latency is bordering on unacceptable for my
needs (sometimes more than 50 milliseconds). I would very much like to
see an implementation of a WDMKS backend for Windows, and preferably
other backends with similar latency characteristics on non-Windows
platforms (5 milliseconds or so). This would enable me to write my mixer
on top, and hopefully achieve a total latency of around 20 milliseconds.
I would be happy to help contribute such an implementation for Windows,
if there is any interest in the community.
- Better Resamplers
As far as I recall, Ryan mentioned a while back that he wants to revisit
the internal resamplers in SDL at some point. Are there any updates on
these plans? I can resample myself, of course, which is what I am doing
for the time being.
- Recording
Being able to capture audio would be great. I often have the need to do
that in my work, and for now I have to leave the comfort of SDL and use
other libraries. It would be great to know what the plans are regarding
this feature, and if there is anything I could do to assist in the
development. Full duplex audio I/O would be especially useful.
Thanks for any information on this!
Kind regards,
Philip Bennefall
