The buffer size is calculated to hold approximately 1/4 (video) frames
of data, with the total number of buffers calculated to give a total
buffer space of 64K.
The main reason I used such a small buffer is so that interleaved file
formats work well. I have also run it with larger buffers, and it still
worked fine.
-justin
Michel Bardiaux wrote:
Justin Schoeman wrote:
Yep - I know the problem... I searched long and hard for a way around
it, and this code is the best I could find ;-(. I have looked at
ALSA, and it does seem to have good, atomic timestamping, but I have
never gotten around to porting yet.
Same here, the prospect of having to read all that doc is frightening.
For most purposes the current code works fine. I use it for
timestamping in nvrec. I have viewed timeshifted recordings longer
than 4 hours already without any noticeable synch problems at any time.
That's a good sign. But our design goal is 24/7 capture, hopefully
running unattended for weeks or months.
Anyway, what buffer size do you use?
-justin
