Using debian linux and dvgrab to capture DVCAM from a Sony DSR-20P.
I initially had issues with dropped frames, which I overcame by using a ramdisk.
The software starts a new file when it finds a discontinuity in the timecode, which works fine most of the time but I see that some of the files are dated in the future.
Watching the capture I can see that the initial timecoded file name is a valid one, then a future dated file gets created, after which the original file is updated some more.
Using vlc the future dated file shows vertical colour bars and has a duration of 15 seconds.
Is there a way, using ffprobe maybe, to display the timecode of each frame so I can determine where the problem occurs?
+ Reply to Thread
Results 1 to 3 of 3
Oops, sorry, this gets you the display timecodes, not the recording date/time metadata. Still, you may be able find a break in the progression to determine where your problem is.
This in a batch file will get you the timestamps in a CSV file, ready to import into a spreadsheet. Or edit with a text editor.
echo entry,media_type,pkt_pts_time,ftype,coded# > "%~n1.csv" ffprobe.exe -v 32 -stats -y -hide_banner -i %1 -select_streams v -print_format csv -of csv -show_entries "frame=media_type,coded_picture_number,pkt_pts_time,pict_type" >> "%~n1.csv"
[Attachment 59410 - Click to enlarge]
Last edited by jagabo; 11th Jun 2021 at 10:54.
Thank you jagabo
It has worked nicey and has helped identify the frames where the issue occurs.
Now I need to think what I can do about it