Getting lots of -1 volume?

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forceflow2
Posts: 2
Joined: Mon Jan 04, 2010 11:03 pm

Getting lots of -1 volume?

Post by forceflow2 »

I just noticed that the logs have been throwing around a lot of
Frame 759 - Black frame with brightness of 15,uniform of 151 and volume of -1159909475
Frame 760 - Black frame with brightness of 16,uniform of 0 and volume of -1
Frame 761 - Black frame with brightness of 16,uniform of 0 and volume of -1
and I read that it indicates that Comskip was unable to decode the audio from the stream. I am using Comskip 0.80.030 and was wondering if this might be a codec problem, a problem with my file (It seems to play fine), or a comskip problem and if there was something I could do about it? Thanks.
erik
Site Admin
Posts: 3369
Joined: Sun Aug 21, 2005 3:49 pm

Re: Getting lots of -1 volume?

Post by erik »

During the decoding process the decoding of video can run ahead of the decoding of the audio.
If a black frame is detected this could results in a log file entry stating that the volume for that frame is -1
As soon as the audio for that frame is decoded the audio level information will be updated.
The simplest way to see if audio got detected is to look at the end of the log file to see what maximum volume has been detected. Any value above 0 should be OK
forceflow2
Posts: 2
Joined: Mon Jan 04, 2010 11:03 pm

Re: Getting lots of -1 volume?

Post by forceflow2 »

Okay, looks like everything is fine then. Thanks for the reply.
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