[xine-devel] Request for comments from the people who wrote audio_arts_out.c, audio_esd_out.c, audio_sun_out.c

[James Courtier-D. <Ja...@su...>]

Hello
I want to move the sync code out of the audio_out files and into a single
xine-engine/audio_out.c file.
I know I can do this easily for audio_alsa_out.c and audio_oss_out.c because
they have a method for finding out what the current delay in the sound
buffer is. Mostly based on how many bytes are still waiting in the buffer to
be output.
This is basically used to do audio sync. I call it support for "real time"
audio.

I cannot see any clear way to support "real time" audio on arts,esd or sun
drivers.

Can anyone help me with finding out if these drivers are "real time" or not.

If they are not real time, then returning a fixed value for the current
delay will at least make them real time-ish.

If these other drivers use some other method for audio sync to the
metronome, can they please explain to me how it is done.
I cannot see any evidence for "real time" support in either arts,esd or sun
drivers.

Cheers
James




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