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   memeka: strace doesn't snow VIDIOC_S_FMT either
   javier__: <u>memeka</u>: the only thing I can think of is that the ioctl never reachs to the kernel
   <br> <u>memeka</u>: you are using gst right? are you using libv4l2 or not?
   <br> maybe libv4l2 is the one to blame here?
   memeka: <u>javier__</u>: i should not be using libv4l2 but lemme check the compile args again
   javier__: <u>memeka</u>: what does ldd libgstvideo4linux2.so say?
   memeka: <u>javier__</u>: libv4l2.so.0 :(
   <br> <u>javier__</u>: ill try a new build ... i was going crazy with this missing ioctl
   <br> debugged gst and the kernel like crazy ... forgot about libv4l2 :(
   javier__: <u>memeka</u>: I don't use libv4l2 and exynos-gsc works well for me with gst
   <br> so libv4l2 may be the one to blame. Also, is the only reasonable explanation for me if gst returns an error but the ioctl never reaches the kernel
   memeka: <u>javier__</u>: this must've been it, i remember in older gst, enabling libv4l2 would break MFC ... strangely, MFC works now, but not GSC
   <br> building now :D
   <br> <u>javier__</u>: it works, can't thank you enough!
   javier__: <u>memeka</u>: great, I'm glad that I could be of any help :)
   memeka: <u>javier__</u>: do you know if gsc will be used by default by gst programs, or do i need to set an option for it to be default?
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   javier__: <u>memeka</u>: I believe it should, but I'm not really a gst expert. I know that for example decodebin picks s5p-mfc by default, but not sure for converters
   <br> <u>memeka</u>: it's a question for ndufresne (although I see he isn't in the channel now)
   <br> and I don't have access to my exynos board now to check
   <br> <u>memeka</u>: I'm going to sleep now since is quite late here, bye!
   memeka: <u>javier__</u>: thanks again, gn
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