[gst-devel] GStreamer-CRITICAL **: gst_util_uint64_scale_int: assertion `denom > 0' failed

[sudarshan bisht]

Hi ,
      As far as my understand about your aim is that you want to print time
on a jpeg image and want to display the same  .
I tried the same thing by just replacing gnomevfssrc  with filesrc , and i
also got the same problem .
     This is happening because of  "received non-Time new segment event on
video input" in both timeoverlay and clockoverlay elements.  And i guess
why  this is happening because of the data processing  is very fast compare
to event propagation since only one frame of data is there .
    If you try same thing for a video file , you will not get this problem.




On Wed, Dec 10, 2008 at 11:02 AM, Noe Nieto <tzicatl at gmail.com> wrote:

> Sorry If I don't understand but:
>
> This error appears constantly if I launch the pipeline with gst-launch on
> this way:
> gst-launch gnomevfssrc name="camsrc" do-timestamp=true location="
> http://server/" ! multipartdemux ! jpegdec ! \
> timeoverlay valign="bottom" text="Frame Time" shaded-background=true ! \
> clockoverlay text="clock time:" shaded-background=true ! ffmpegcolorspace !
> \
> ximagesink force-aspect-ratio=true
>
> The error also appears with the python app that uses the same pipeline. I
> use  gst.parse_launch() to construct the pipeline. I also re-read the
> manpage for gst-launch and gst_parse_launch() and I did not notice any
> special way to give string parameters to elements other than the one it's
> being used. Besides that I am not passing any kind of number parameter to
> the elements of the pipeline, I am just passing string parameters.
>
> That's why I am confused. The app runs very well, but the messages can be
> annoying.
>
> Any clues?
>
>
>
> 2008/12/9 sudarshan bisht <bisht.sudarshan at gmail.com>
>
>  Hi ,
>>      You are doing something wrong while setting properties of elements ,
>> check them again and see what is the correct format of setting them (check
>> for int, float, boolean etc).
>>
>>   On Wed, Dec 10, 2008 at 8:44 AM, Noe Nieto <tzicatl at gmail.com> wrote:
>>
>>> Nice mission.. I don't use that function nowhere in my code. I think is
>>> somewhere inside the elements I use for this pipeline.
>>>
>>> Got to learn how to debug gstreamer pipelines.
>>>
>>>
>>> 2008/12/9 Eric Zhang <nicolas.m.zhang at gmail.com>
>>>
>>> Hi, gstreamer-devel:
>>>>
>>>>     gst_util_uint64_scale_int has 3 parameters: val, num, denom and this
>>>> function perform val*num/denom and return the result. The last parameter
>>>> denom can't be negative, that's why you got these warning messages.
>>>>
>>>>     So your mission is to find out where these messages come from. After
>>>> that, you can tell why these messages occur. I also got these warnings
>>>> several times and finally I find out the denom which I passed to
>>>> gst_util_uint64_scale_int will be -1 when the playing is reaching EOS. So I
>>>> add a "if" logic in the code and solved this problem.
>>>>
>>>> Eric Zhang
>>>>
>>>> 2008/12/10 Noe Nieto <tzicatl at gmail.com>
>>>>
>>>>>  I am working with this pipeline:
>>>>> gnomevfssrc name="camsrc" do-timestamp=true location="%s" !
>>>>> multipartdemux ! jpegdec ! \
>>>>> timeoverlay valign="bottom" text="Frame Time" shaded-background=true !
>>>>> \
>>>>> clockoverlay text="clock time:" shaded-background=true !
>>>>> ffmpegcolorspace ! \
>>>>> ximagesink force-aspect-ratio="true"
>>>>>
>>>>> When I run it there is a lot of messages printed in the console and
>>>>> they look like this:
>>>>>
>>>>> GStreamer-CRITICAL **: gst_util_uint64_scale_int: assertion `denom > 0'
>>>>> failed
>>>>>
>>>>> This happens when I run the pipeline either with gst-launch or a
>>>>> specifically designed python app. The question is: Why do I keep getting
>>>>> this messages on the console?
>>>>>
>>>>>
>>>>> I hope someone can give some advice.
>>>>> Noe.
>>>>>
>>>>>
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>>
>>
>> --
>> Regards,
>>
>> Sudarshan Bisht
>>
>>
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-- 
Regards,

Sudarshan Bisht
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