KLV stream not detected

John Hanks jhanks at vsicorp.com
Fri Jul 6 01:03:39 UTC 2018


For whatever reason, it looks like I used

git://anongit.freedesktop.org/git/gstreamer/$module

to grab my initial install and just do 'git pull origin' to get updates.

I found a script from last August that used this as the source and this 
is also in the gst-plugins-good.doap file in my gst-plugins-good build 
directory.  I haven't has a need to learn too much a git so I'm not sure 
how different this might be from what is on github (or how to tell).

John


On 07/04/2018 11:31 AM, Arturo Flores wrote:
> Thanks, would this be the master branch here 
> https://github.com/GStreamer/gstreamer ?
>
> Are nightly windows builds of master available anywhere?  I can figure 
> out how to build it on windows if necessary, but if there is something 
> like a nightly build for windows available somewhere, I would use that 
> option instead.
>
> Arturo
>
>
> On Tue, Jul 3, 2018 at 6:13 PM, John Hanks <jhanks at vsicorp.com 
> <mailto:jhanks at vsicorp.com>> wrote:
>
>     Sorry for the late response - I've been out of town.
>
>     I am running on Linux and did a git update (git pull origin).  The
>     git repository updated to 1.15 a couple of weeks ago.
>
>     John
>
>
>     On 06/22/2018 04:36 PM, Arturo Flores wrote:
>>     Hi Nicolas,
>>
>>     The output I've observed in all of the gstreamer1.x versions I've
>>     tried (up to 1.14.1) is:
>>
>>     Done discovering file:///somefilewithklv.mpg
>>
>>     Topology:
>>     container: MPEG-2 Transport Stream
>>       video: H.264 (Baseline Profile
>>
>>     John Hanks says he observed the "unknown: meta/x-klv" line in
>>     gstreamer 1.15.0.1  .  I don't have that version, and I don't
>>     know where to get it.  If you know where to get it, please let me
>>     know.
>>
>>     Thanks
>>
>>     Arturo
>>
>>
>>     On Fri, Jun 22, 2018 at 12:53 PM, Nicolas Dufresne
>>     <nicolas at ndufresne.ca <mailto:nicolas at ndufresne.ca>> wrote:
>>
>>         Le vendredi 22 juin 2018 à 11:22 -0700, Arturo Flores a écrit :
>>         > btw, I tried downloading a few other versions of gstreamer
>>         (1.10,
>>         > 1.12, 1.13 ), I'm observing the same behavior in those
>>         versions too.
>>         > Should I be able to detect the KLV stream?
>>         >
>>         > On Thu, Jun 21, 2018 at 5:52 PM, John Hanks
>>         <jhanks at vsicorp.com <mailto:jhanks at vsicorp.com>>
>>         > wrote:
>>         > > It works correctly on 1.15.0.1.  It must be a bug in 14.:
>>         > > norman:~$ gst-discoverer-1.0 --gst-version
>>         > > GStreamer Core Library version 1.15.0.1
>>         > > norman:~$ gst-discoverer-1.0 /data/file.ts
>>         > > Analyzing file:///data/file.ts
>>         > > Done discovering file:///data/file.ts
>>         > >
>>         > > Topology:
>>         > >   container: MPEG-2 Transport Stream
>>         > >     video: H.264 (High 4:2:2 Profile)
>>         > >     audio: MPEG-2 AAC
>>         > >     unknown: meta/x-klv
>>
>>         Why do you say it's undetected ? This lines indicated it is.
>>         It says
>>         unknown, because it does not fit in any of the 3 categories
>>         discoverer
>>         knows, which is video/audio/text.
>>
>>         > >
>>         > > Properties:
>>         > >   Duration: 0:00:19.095193925
>>         > >   Seekable: yes
>>         > >   Live: no
>>         > >   Tags:
>>         > >       language code: en
>>         > >       audio codec: MPEG-2 AAC
>>         > >       video codec: H.264
>>         > >
>>         > > John
>>         > >
>>         > > On 06/21/2018 01:41 PM, Arturo Flores wrote:
>>         > > > I have a file that contains two streams: a video stream
>>         and a klv
>>         > > > stream.  One problem I have encountered is it appears
>>         the KLV
>>         > > > stream is not being detected when using gstreamer-1.0 . For
>>         > > > example, if I use gst-discoverer-0.10 on this file I get:
>>         > > >
>>         > > > ...
>>         > > > Done discovering file://somefilewithklv.mpg
>>         > > >
>>         > > > Topology:
>>         > > >   container: MPEG-2 Transport Stream
>>         > > >     video: H.264
>>         > > >     unknown: private/klv
>>         > > > ...
>>         > > >
>>         > > >
>>         > > > However, if I use the new gstreamer tool
>>         gst-discoverer-1.0, I
>>         > > > get:
>>         > > >
>>         > > > Done discovering file:///somefilewithklv.mpg
>>         > > >
>>         > > > Topology:
>>         > > >   container: MPEG-2 Transport Stream
>>         > > >     video: H.264 (Baseline Profile)
>>         > > >
>>         > > > I am using gstreamer-1.0-1.14.1 if it makes a
>>         difference.  Should
>>         > > > I be seing the unknown:private/klv stream when using
>>         the new gst-
>>         > > > discoverer-1.0 ?
>>         > > >
>>         > > > Thanks
>>         > > >
>>         > > > Arturo
>>         > > >
>>         > > >
>>         > > >
>>         > > > _______________________________________________
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