Changes between Initial Version and Version 1 of Ticket #692, comment 15
- Sep 1, 2012, 4:24:24 AM (4 years ago)
initial v1 15 15 This second one specifies the video input on the command line first. In the [http://ewhac.org/vid/badsync-va.mpg final file], the audio is slightly early relative to the video. 16 16 17 All other arguments are identical. I've attached the -report logs to this bug. 17 All other arguments are identical. I've attached the -report logs to this bug. 18 18 19 19 Based on this behavior, I would guess that the input streams are not being synchronized/flushed before writing of the output file begins. In other words, stale data is accumulating in the FIFO of one device while the next one is being opened. In the case of a V4L2 device, this can take non-trivial time, allowing large amounts of audio data to accumulate.