videolength == -1 :(

[jeetu.golani at gmail.com]

Hi Tim,

Thanks so much for your response. I wasn't sure if this was a bug or
some expected behaviour in this situation. It works for the avi file
type but not for nuv, so I think I'll file in the bug and hope someone
can figure this out.

Other than gstreamer is there any other way I can get this
information? ffprobe give me an estimation that is inaccurate probably
since its using bitrate to do a calculation, a 5 minute clip shows up
as 7.x mins. VLC and other players are able to show the right time so
I'm guessing there must be a way.

Thanks so much for your help.

Bye for now

On Thu, Apr 7, 2011 at 2:07 PM, Tim-Philipp Müller <t.i.m at zen.co.uk> wrote:
> On Thu, 2011-04-07 at 11:16 +0530, jeetu.golani at gmail.com wrote:
>
> Hi,
>
>> I need to retrieve the videolength of a mythtv recorded nuv file with
>> mpeg4 video and mp3 audio. I'm using the discoverer module in python
>> to retrieve media info. I'm able to get other values correctly such as
>> the media_type (shows video/x-nuv), width,height,etc however for
>> videolength I get a -1. Am not sure what this means. Admittedly I'm
>> not very good with gstreamer :)
>
> If it works with other files/file types, it's probably not your code.
>
> It looks like nuvdemux in gst-plugins-bad just doesn't
> extract/provide/estimate that information. I don't know if that's
> readily available or easy to do, but maybe you could file a bug in
> bugzilla, then someone will take a look at it.
>
> Cheers
>  -Tim
>
>
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