Hi,
> what is "absolute timestamp", a security cam's time timecode burned into
> video ? pts ?
You are very good at guessing. It is security cam time code. It is
burned somewhere in the meta info, because their windows desktop player
gives timing like this:
2020/09/27 11:33:24
while other players give:
00:00:11 i.e relative time from the beginning.
The only vague information I found is:
https://dmeforensics.com/analysis-of-hikvision-date-time/
So I am trying to find a way to get this extra information about the
absolute epoch/date time timestamp :-)
Thanks :-)
Peter
On 27/09/2020 04:07, andrei ka wrote:
hi,
what is "absolute timestamp", a security cam's time timecode burned into
video ? pts ?
i'd keep guessing, " Play the files on web using Nginx and Video.js" means
you want to encode to hls, hand it to nginx for streaming and play that
m3u8 url with ffmpeg giving "-ss hh:mm.ss..." parameter ?
ak
On Sat, Sep 26, 2020 at 3:37 PM Peter <pe...@aboutsupport.com> wrote:
Hi,
I have a file MPEG-PS, AVC264 with audio code G711u.
It does contain absolute timestamp in each frame i.e I can say when
exactly each second of this video was shot.
I want to do the following:
1. Extract absolute timestamps from the video
2. Convert the file to MP4 h264 with some more web friendlier audio
codec i.e aac.
3. Play the files on web using Nginx and Video.js and be able to search
by absolute timestamp.
I am aware that most likely I will need to store absolute timestamp in
separate files as I cannot put them in mp4.
Any help/feedback is welcome :-)
Thanks,
Peter
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