AW: AW: AW: Serial port interface on frame grabber

[James Cameron]

Sorry, I don't know.  Perhaps someone else does.

On Mon, Jul 23, 2018 at 04:41:59AM -0500, vk_gst wrote:
> Hi James,
> 
> Thanks for the update. 
> I definitely, want to use the existing GStrreamer elements, rather than
> writing my own and introducing more bugs.  
> The IMU device which I am supposed to use, provides a trigger signal that
> provides me the latest sample of IMU data. So my idea is now to trigger this
> signal at every frame capture, and then I have the IMU data for that
> particular frame, with a minimum delay. However, I have 2 questions here:
> 
> 1. I could find any API ' static gboolean gst_imx_v4l2src_start(GstBaseSrc
> *src) ' that reads from the camera device. I am thinking of exporting a
> trigger from this API for every success the API returns. However, I do not
> know if this call happens every frame; there is not much description
> provided. Is there any other way, that I can trigger the IMU after every
> frame is read? Generally, the camera provides a VSnc signal that marks the
> reading of complete frame, but the camera I am using (OV5640) does not have
> such a trigger.  
> 
> 2. For sending the IMU data with the frames, should I be using AppSrc ?
> Would the IMU data also be readable at the receiver side when I read the
> AppSrc? This is because I want the video data and IMU data separately at the
> receiver.  
> 
> Regards
> 
> 
> 
> 
> --
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-- 
James Cameron
http://quozl.netrek.org/