How to capture a still image while previewing live video?

[Kapil Agrawal]

ah I guess I know the issue,
most probably v4l2src is not copying the captured video in dm365 dmai
buffer, and that could be an issue. I dont recall it immediately, but just a
clue ?

Best Luck
Kapil

On Wed, Sep 14, 2011 at 11:00 PM, Paul Stuart <paul_stuart at seektech.com>wrote:

> **
> Hello Kapil,
>  Right you are!
>
> But...still doesn't work. I'm strongly suspecting TI's TIImgenc1
> implementation at this point. Looking at the source code for it, it looks
> like it *should* work, as they've implemented a circular buffer system to
> buffer incoming and outgoing buffers. When I turn logging on, I see the
> following snippet:
>
>  GST_ERROR_SYSTEM gstelement.c:1761:gst_element_message_full:<tiimgenc10>
> posting message: Failed to queue input buffer into circular buffer
>
> 0:06:58.383303446  2220    0xfabc0 INFO        GST_ERROR_SYSTEM
> gstelement.c:1784:gst_element_message_full:<tiimgenc10> posted error
> message: Failed to queue input buffer into
> circular buffer
>
>
> So...digging deeper into TIImgenc1
>
> Thanks!
> Paul
>
> Kapil Agrawal wrote:
>
> Hello Paul,
>
> I think your pipeline should look like, added a queue after tee
>
> gst-launch -v v4l2src always-copy=FALSE  input-src=composite \
> ! tee name= t \
> ! queue
> ! 'video/x-raw-yuv,width=(int)736,height=(int)480' \
> ! tidisplaysink2 video-standard=vga display-output=lcd mmap-buffer=FALSE
> dma-copy=TRUE \
> t. \
> ! queue \
> ! 'video/x-raw-yuv,width=(int)736,height=(int)480' \
> ! videorate \
> ! TIImgenc1  iColorSpace=UYVY oColorSpace=YUV420P qValue=75
> engineName=codecServer \
> ! filesink location=output.jpg
>
> Regards
> Kapil
>
> --
> www.mediamagictechnologies.com (Gstreamer, ffmpeg, Red5, Streaming)
> twitter handle: @gst_kaps
> http://www.linkedin.com/in/kapilagrawal
>
>
>
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>


-- 
http://www.linkedin.com/in/kapilagrawal
www.mediamagictechnologies.com
(Consultancy - Multimedia, Gstreamer, ffmpeg, Streaming for platforms-
linux, windows, TI, android)
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