Hi All,

I tried to get a video without ffmpegcolorspace ! and ended up with following problem

root@overo:~# gst-launch -v v4l2src num-buffers=1000 ! video/x-raw-yuv,width=640
,height=480,framerate=30/1 ! TIVidenc1 codecName=mpeg4enc engineName=codecServer
 ! avimux ! filesink location=sample_vga.mp4
Setting pipeline to PAUSED ...
ERROR: Pipeline doesn't want to pause.
ERROR: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Could not negotiate format
Additional debug info:
gstbasesrc.c(2778): gst_base_src_start (): /GstPipeline:pipeline0/GstV4l2Src:v4l2src0:
Check your filtered caps, if any
Setting pipeline to NULL ...
Freeing pipeline ...

How to enable debug prints in gst-launch to view gst-launch trying formats with camera driver.
I tried various values of GST_CAT but not helps in debugging --gst-debug=GST_CAT:5,GST_ELEMENT_*:3,oggdemux:5

Thanks and regards,
Ananth.


On Monday 25 July 2011 02:34 PM, Ananthapadmanaban wrote:
Hi gonçalo,

    Hope this works for you
    gst-launch -v v4l2src num-buffers=1000 ! video/x-raw-yuv,width=640,height=480,framerate=30/1 ! TIVidenc1 codecName=mpeg4enc engineName=codecServer ! avimux ! filesink location=sample_vga.mp4

Thanks and regards,
Ananth.
On Monday 25 July 2011 02:13 PM, Gonçalo Bernardo wrote:
Dear all,

do you know if it is possible to direct the stream to an *.avi file or similar instead of network streaming it?
is it worth using the DSP if you don't really want to stream but you want a good quality video file?

Thanks,
gonçalo

On Fri, Jul 22, 2011 at 11:45 AM, Scott Ellis <scott@jumpnowtek.com> wrote:
Did you check for network activity? Also, why did you choose tcpserver
instead of udpserver? Isn't UDP more efficient with streaming video?

Also remember you'll have to start the client first unless you add
the sprop-parameter-sets value to your client pipeline.

You could also try a smaller image size. That drops the load
considerably.

Using a command like this with the Logitech C510

gst-launch -v -e $VIDEO_SRC ! \
   video/x-raw-yuv,width=320,height=240 ! \
   ffmpegcolorspace ! \
   TIVidenc1 codecName=h264enc engineName=codecServer ! \
   dmaiperf print-arm-load=true engine-name=codecServer ! \
   rtph264pay pt=96 ! \
   udpsink host=$CLIENT_IP port=$PORT


Results in this from dmaiperf

Timestamp: 0:08:20.897125245; bps: 4784; fps: 15; CPU: 32; DSP: 10; \
  mem_seg: DDR2; base: 0x87f0cfa0; size: 0x20000; maxblocklen: 0x15798; \
  used: 0xa868; mem_seg: DDRALGHEAP; base: 0x87400000; size: 0x900000; \
  maxblocklen: 0x83d500; used: 0xc2788; mem_seg: L1DSRAM; \
  base: 0x10f04000; size: 0x10000; maxblocklen: 0x0; used: 0x10000;


Where a 640x480 stream gives dmaiperf results like this

Timestamp: 0:14:51.022888185; bps: 58999; fps: 16; CPU: 100; DSP: 50; \
  mem_seg: DDR2; base: 0x87f0cfa0; size: 0x20000; maxblocklen: 0x15798; \
  used: 0xa868; mem_seg: DDRALGHEAP; base: 0x87400000; size: 0x900000; \
  maxblocklen: 0x765a00; used: 0x19a288; mem_seg: L1DSRAM; \
  base: 0x10f04000; size: 0x10000; maxblocklen: 0x0; used: 0x10000;


At least this is what I'm seeing.

I have the camera plugged into the host port of a Tobi using a Tide COM
running at 720 MHz watching on an Ubuntu workstation client.


The camera shows up this way in syslog

...
input: UVC Camera (046d:081d) as /devices/platform/ehci-omap.0/usb2/2-2/2-2:1.2/input/input0
usbcore: registered new interface driver uvcvideo
USB Video Class driver (v0.1.0)
...

And this way with the v4lexplore app

=== VIDIOC_QUERYCAP ===

driver: uvcvideo
card: UVC Camera (046d:081d)
bus_info: usb-ehci-omap.0-2
version: 256
capabilites:
       V4L2_CAP_VIDEO_CAPTURE
       V4L2_CAP_STREAMING
...

Scott

--
Sent from my Linux box


------------------------------------------------------------------------------
10 Tips for Better Web Security
Learn 10 ways to better secure your business today. Topics covered include:
Web security, SSL, hacker attacks & Denial of Service (DoS), private keys,
security Microsoft Exchange, secure Instant Messaging, and much more.
http://www.accelacomm.com/jaw/sfnl/114/51426210/
_______________________________________________
gumstix-users mailing list
gumstix-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/gumstix-users



--
.::Gonber::.
------------------------------------------------------------------------------ Storage Efficiency Calculator This modeling tool is based on patent-pending intellectual property that has been used successfully in hundreds of IBM storage optimization engage- ments, worldwide. Store less, Store more with what you own, Move data to the right place. Try It Now! http://www.accelacomm.com/jaw/sfnl/114/51427378/
_______________________________________________ gumstix-users mailing list gumstix-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gumstix-users

------------------------------------------------------------------------------ Storage Efficiency Calculator This modeling tool is based on patent-pending intellectual property that has been used successfully in hundreds of IBM storage optimization engage- ments, worldwide. Store less, Store more with what you own, Move data to the right place. Try It Now! http://www.accelacomm.com/jaw/sfnl/114/51427378/
_______________________________________________ gumstix-users mailing list gumstix-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gumstix-users