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recording time bug?

Posted: Sat Apr 21, 2018 4:04 am
by Volans
Hello,

I'd like to report a bug. I ve been manually using 45 seconds recording time for each RGB (from capture menu->set 45 seconds). But when I play the *.avi files on windows media player it shows 2 mins 47 seconds of recording for each R and G channel recording, and 1:24 for Blue.

I remember i did activate 45s recording manually for each channel, but for the blue channel I reduced the shutter speed (resulting in less frames).

Is this error caused by windows media player? the reason i opened it on WMP was because sometimes I want to check the length of my recording.

thank you.

here's the text file:
[ZWO ASI290MM]
Pan=728
Tilt=308
Output Format=AVI files (*.avi)
Binning=1
Capture Area=480x480
Colour Space=MONO8
Temperature=37.2
High Speed Mode=Off
Turbo USB=100(Auto)
Flip=None
Frame Rate Limit=Maximum
Gain=352
Exposure=0.008953
Timestamp Frames=Off
Brightness=0
Auto Exp Max Gain=300
Auto Exp Max Exp M S=30000
Auto Exp Target Brightness=100
Apply Flat=None
Subtract Dark=None
#Black Point
Display Black Point=0
#MidTone Point
Display MidTone Point=0.5
#White Point
Display White Point=1
TimeStamp=2018-04-14T20:12:46.3434955Z
SharpCapVersion=3.1.5085.0

Re: recording time bug?

Posted: Sat Apr 21, 2018 11:45 am
by admin
Hi,

this is expected behaviour - SharpCap doesn't set the frame rate in written AVI files (not sure that I remember why at the moment), so I think it defaults to 30fps playback - that means that your R&G files with more frames in will play for longer.

cheers,

Robin

Re: recording time bug?

Posted: Mon Apr 23, 2018 4:22 am
by Volans
Thank you Robin for the clarification.

Re: recording time bug?

Posted: Mon Apr 23, 2018 4:04 pm
by admin
By the way, if you capture video to SER format then each frame gets a timestamp, which means that the video can be played back at correct speed by an application like SERPlayer.

thanks,

Robin