[FFmpeg-user] [EXTERNAL] Frame Drops and Audio Sync Issues

[Shupert, Jim]

-----Original Message-----
From: ffmpeg-user <ffmpeg-user-bounces at ffmpeg.org> On Behalf Of James Board via ffmpeg-user
Sent: Thursday, December 9, 2021 5:11 PM
To: ffmpeg-user at ffmpeg.org
Cc: James Board <jpboard2 at yahoo.com>
Subject: [EXTERNAL] [FFmpeg-user] Frame Drops and Audio Sync Issues

I captured some video from a hardware capture card.  It has a few hundred frame drops in one hour of video.  The container format is .avi.   When I play the captured file with mplayer, the audio is out of sync with the video



I might offer -  The core reason for the captured video to be out of sync and to have dropped frames might be disk IO.
Try a recapture with a raided for speed drive set.
This is more likely if what you are capturing is uncompressed and less likely if what you are capturing is highly ( low datarate) compressed.
cheers