given the recent post about AV drift, this seemed relevant:

http://www.pipapo.org/pipawiki/Lumiera/DesignProcess/time_handling
Lumiera = video editor project (no usable app yet)

I am wondering what it would take to make a test app:  something that would
generate an input AV stream (file, v4l device... whatever), something like
transcode would do something to it, and the output would be analyzed to see if
the AV is still in sync.

I did something similar using a webcam/mic pointed at a laptop that had a clock
on the screen, and an audio clock ("at the tone, the time will be eight, oh one.
 beep.")  I let that record for an hour, then played it back and looked to see
if the tone beeped as the second hand crossed 12.  I would like to think an app
could do this too.

Carl K

Reply via email to