[gst-devel] v4l2src & glupload at only 12 FPS?

[Tristan Matthews]

2010/3/5 Julien Isorce <julien.isorce at gmail.com>

>
> try this:
>
> GST_DEBUG=gldisplay:3 GST_GL_SHADER_DEBUG=1 GST_GL_WINDOW_DEBUG=1
> gst-launch -v
> dc1394src ! "video/x-raw-rgb" ! glupload ! "video/x-raw-gl, width=320,
> height=240" ! glfilterglass ! glimagesink
>
> and this:
>
> GST_DEBUG=gldisplay:3 GST_GL_SHADER_DEBUG=1 GST_GL_WINDOW_DEBUG=1
> gst-launch -v
> videotestsrc ! "video/x-raw-yuv, format=(fourcc)I420" ! glupload !
> glfilterglass ! glimagesink
>
>
The first line suffers the same problem. The second, width videotestsrc,
works, but interestingly if i set is-live=true for videotestsrc, it suffers
the same problems as dc1394src and v4l2src. I don't know if that helps at
all.

Here's the output of the first launch line:
http://pastebin.com/KEK0Lf52

And the second:
http://pastebin.com/FcLxryNZ

-tristan



> Julien
>
>
>>
>>
>>
>>>
>>>
>>>>  Here is the command I have issued. The first time, it was without the
>>>>> glfilterglass element.
>>>>>
>>>>> $ gst-launch -v v4l2src ! video/x-raw-yuv, format=\(fourcc\)I420,
>>>>> framerate=\(fraction\)25/1, width=640, height=480 ! ffmpegcolorspace !
>>>>> glupload  ! glfilterglass ! glimagesink
>>>>>
>>>>> I am not sure about how to read the actual frame rate, though. Any
>>>>> hint?
>>>>>
>>>>> Thanks,
>>>>> Alex
>>>>>
>>>>>
>>>>> > Julien
>>>>> >
>>>>> > 2010/3/3 Alexandre Quessy <alexandre at quessy.net>
>>>>> >
>>>>> >> Hello everyone,
>>>>> >> I have worked on a prototype of a pipeline that uploads a live video
>>>>> >> feed to an OpenGL texture and shares it with a context in SDL,
>>>>> >> starting from the tests/examples/sdlshare.c file in gst-plugins-gl.
>>>>> >> The source code can be found at
>>>>> >> http://bitbucket.org/aalex/toonloop1/src/tip/src/sdlshare.cpp and
>>>>> can
>>>>> >> be compiled with the autotools.
>>>>> >> (./autogen.sh && ./configure && make)
>>>>> >>
>>>>> >> It seems like the mesured framerate is consistently pretty slow. I
>>>>> get
>>>>> >> an average of 12 FPS on a Dual 2.2 GHz with the latest Ubuntu and a
>>>>> >> decent Nvidia graphic card. I obtained 30 FPS on a faster machine
>>>>> with
>>>>> >> a better V4L2-supported video capture card.
>>>>> >>
>>>>> >> Does someone have suggestions on how I could overcome this ? I would
>>>>> >> also prefer to have a framerate that's faster than the capture
>>>>> card's.
>>>>> >> 29.97 FPS is what NTSC gives me, whereas most projectors and
>>>>> monitors
>>>>> >> can do up to 60 FPS. I have tried to set the "sync" property of the
>>>>> >> fakesink element to FALSE, or TRUE, without success. Any other hint
>>>>> ?
>>>>> >>
>>>>> >> --
>>>>> >> Alexandre Quessy
>>>>> >> http://alexandre.quessy.net/
>>>>> >>
>>>>> >>
>>>>> >>
>>>>> ------------------------------------------------------------------------------
>>>>> >> Download Intel&#174; Parallel Studio Eval
>>>>> >> Try the new software tools for yourself. Speed compiling, find bugs
>>>>> >> proactively, and fine-tune applications for parallel performance.
>>>>> >> See why Intel Parallel Studio got high marks during beta.
>>>>> >> http://p.sf.net/sfu/intel-sw-dev
>>>>> >> _______________________________________________
>>>>> >> gstreamer-devel mailing list
>>>>> >> gstreamer-devel at lists.sourceforge.net
>>>>> >> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
>>>>> >>
>>>>> >
>>>>> >
>>>>> >
>>>>> ------------------------------------------------------------------------
>>>>> >
>>>>> >
>>>>> ------------------------------------------------------------------------------
>>>>> > Download Intel&#174; Parallel Studio Eval
>>>>> > Try the new software tools for yourself. Speed compiling, find bugs
>>>>> > proactively, and fine-tune applications for parallel performance.
>>>>> > See why Intel Parallel Studio got high marks during beta.
>>>>> > http://p.sf.net/sfu/intel-sw-dev
>>>>> >
>>>>> >
>>>>> >
>>>>> ------------------------------------------------------------------------
>>>>> >
>>>>> > _______________________________________________
>>>>> > gstreamer-devel mailing list
>>>>> > gstreamer-devel at lists.sourceforge.net
>>>>> > https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
>>>>>
>>>>>
>>>>> ------------------------------------------------------------------------------
>>>>> Download Intel&#174; Parallel Studio Eval
>>>>> Try the new software tools for yourself. Speed compiling, find bugs
>>>>> proactively, and fine-tune applications for parallel performance.
>>>>> See why Intel Parallel Studio got high marks during beta.
>>>>> http://p.sf.net/sfu/intel-sw-dev
>>>>> _______________________________________________
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>>>>> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
>>>>>
>>>>
>>>>
>>>>
>>>> ------------------------------------------------------------------------------
>>>> Download Intel&#174; Parallel Studio Eval
>>>> Try the new software tools for yourself. Speed compiling, find bugs
>>>> proactively, and fine-tune applications for parallel performance.
>>>> See why Intel Parallel Studio got high marks during beta.
>>>> http://p.sf.net/sfu/intel-sw-dev
>>>> _______________________________________________
>>>> gstreamer-devel mailing list
>>>> gstreamer-devel at lists.sourceforge.net
>>>> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
>>>>
>>>>
>>>
>>>
>>> --
>>> Tristan Matthews
>>> email: tristan at sat.qc.ca
>>> web: http://tristanswork.blogspot.com
>>>
>>
>>
>>
>> --
>> Tristan Matthews
>> email: tristan at sat.qc.ca
>> web: http://tristanswork.blogspot.com
>>
>>
>> ------------------------------------------------------------------------------
>> Download Intel&#174; Parallel Studio Eval
>> Try the new software tools for yourself. Speed compiling, find bugs
>> proactively, and fine-tune applications for parallel performance.
>> See why Intel Parallel Studio got high marks during beta.
>> http://p.sf.net/sfu/intel-sw-dev
>> _______________________________________________
>> gstreamer-devel mailing list
>> gstreamer-devel at lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
>>
>>
>
>
> ------------------------------------------------------------------------------
> Download Intel&#174; Parallel Studio Eval
> Try the new software tools for yourself. Speed compiling, find bugs
> proactively, and fine-tune applications for parallel performance.
> See why Intel Parallel Studio got high marks during beta.
> http://p.sf.net/sfu/intel-sw-dev
> _______________________________________________
> gstreamer-devel mailing list
> gstreamer-devel at lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
>
>


-- 
Tristan Matthews
email: tristan at sat.qc.ca
web: http://tristanswork.blogspot.com
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