start time is out mp4

Maxim Dounin mdounin at
Sat Jun 22 14:41:16 UTC 2013


On Sat, Jun 22, 2013 at 10:40:53AM +0100, Richard Kearsley wrote:

> Hi
> I’m using the mp4 module quite heavily, and very occasionally (once
> every minute or so on a busy website) there is an error written to
> error.log and status 500 returned in the access log
> [error] 42078#0: *5510811 start time is out mp4 stts samples in ...
> (mostly this error)
> [error] 42072#0: *5524976 start time is out mp4 stsc chunks in ...
> (sometimes this error)
> It happens on different videos and only when ?start is after a
> certain time point (different for each video)
> Given that the mp4 module works remarkably well on the whole, where
> should I look to find the cause of these rare errors? (and what do
> they actually mean :))

Messages suggest an attempt was made to seek to a time which isn't 
in media track metadata, thus seek isn't possible.  This usually 
happens when time in "start=" is just too big.

Maxim Dounin

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