Getting pad capabilities from PIPELINE.

[Mike Mitchell]

Perhaps because unless the state playing already, videorate will not have
decided what scale to negotiate yet.  Why do you need to know the caps that
are negotiated automatically ?

*Mike Mitchell*




On Fri, Oct 7, 2011 at 1:57 AM, Ashwini Sharma <ak.ashwini at gmail.com> wrote:

> My aim is to get the original video size. Thats why I get the caps at
> ffmpegcsp. But I get the size 1280x720 which should not be the case until
> after videoscale.
>
> My doubt is why i am getting the size 1280x720 at ffmpegcsp, which is
> placed before the videsocale.
>
> Any reason to that?
>
> -Ashwini
>
> On Fri, Oct 7, 2011 at 1:57 PM, Mike Mitchell <
> mike.mitchell at panometric.net> wrote:
>
>> I don't understand the problem as you described it.
>>
>> Have you tired: gst-launch -v --gst-plugin-spew
>>
>> In your psuedo pipeline, the scaling is last, so the video will still be
>> 704x480 until after videoscale.  But it's my understanding you needs caps at
>> the output of video scale to tell it to upscale. If you provide that it will
>> probably do what you want.
>>
>> *Mike Mitchell*
>>
>>
>>
>>
>>
>> On Thu, Oct 6, 2011 at 9:33 PM, Ashwini Sharma <ak.ashwini at gmail.com>wrote:
>>
>>> Hi All,
>>>
>>>    I want to the get the negotiated caps of a pad, to find the resolution
>>> (width and height) and frame-rate of the video.
>>>
>>> My pipeline looks like
>>>
>>>
>>>  filesrc->mpegtsdemux->decodebin->ffmpegcolorspace->videoscale->xvimagesink.
>>>
>>> In this pipeline I am scaling my video to 1280x720 resolution from
>>> 704x480
>>>
>>> When I get the "src" or "sink" pad of ffmpegcolorspace and print the caps
>>> from that, the width and height are returned as 1280x720 and not the
>>> original one 704x480.
>>>
>>> Can someone please tell me where am I going wrong.
>>>
>>> Thanks,
>>> Ashwini Kumar
>>>
>>> _______________________________________________
>>> gstreamer-devel mailing list
>>> gstreamer-devel at lists.freedesktop.org
>>> http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
>>>
>>>
>>
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>>
>
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