Hi Ajay,
On Friday 09 September 2011 08:44:22 Ajay Bhargav wrote:
Hi Srinivas,
Patches are attached here... There are more modifications I did to
uvc_video to set size of buffer + fid bit toggle after 44 MPEG2-TS
packets.
Why 44 ?
What kind of camera are you using?
--
Regards,
Laurent
Hi Paulo,
On Friday 09 September 2011 16:05:24 Paulo Assis wrote:
Well one important thing to notice is the pixel format returned by the
driver, will it differentiate between avc and svc streams, or even
mpeg2 ?
That very much depends on the camera. Facevsion cameras seem to report MPEG2-
TS
- Laurent Pinchart laurent.pinch...@ideasonboard.com wrote:
Hi Ajay,
On Friday 09 September 2011 08:44:22 Ajay Bhargav wrote:
Hi Srinivas,
Patches are attached here... There are more modifications I did to
uvc_video to set size of buffer + fid bit toggle after 44 MPEG2-TS
- Laurent Pinchart laurent.pinch...@ideasonboard.com wrote:
Hi Paulo,
On Friday 09 September 2011 16:05:24 Paulo Assis wrote:
Well one important thing to notice is the pixel format returned by
the
driver, will it differentiate between avc and svc streams, or even
mpeg2 ?
That
Hi Robert,
On Thursday 03 November 2011 12:34:55 Robert Krakora wrote:
Hi Guys,
I did not see audio in the MPEG2 TS stream that I was able to get out of the
FaceVsion camera. I purchased one for Laurent for development purposes. It
sounds like he has been working with it some.
Yes I've
- Ajay Bhargav ajay.bhar...@einfochips.com wrote:
- Laurent Pinchart laurent.pinch...@ideasonboard.com wrote:
Hi Robert,
On Thursday 03 November 2011 12:34:55 Robert Krakora wrote:
Hi Guys,
I did not see audio in the MPEG2 TS stream that I was able to get
out of the
Hi,
just remember to also set the -f option to force the use of the
specified pixel format (otherwise the camera default one is used).
So the two options that need to be set are: -o -f
regards,
Paulo
2011/9/12 Ajay Bhargav ajay.bhar...@einfochips.com:
Hi Paulo,
This is good.. thanks I will
Hi Paulo,
This is good.. thanks I will test it with my camera too..
Regards,
Ajay Bhargav
- Paulo Assis pj.as...@gmail.com wrote:
Hi,
see attached a patched capture example, for saving the driver output
buffer into raw files (200).
I haven't been able to test build it, but the changes
Hi Robert,
Can you please share you plugins-good patch?
Thanks and Regards,
Srini
--- On Wed, 31/8/11, Ajay Bhargav ajay.bhar...@einfochips.com wrote:
From: Ajay Bhargav ajay.bhar...@einfochips.com
Subject: Re: [Linux-uvc-devel] Webcam with H264 encoder not in Devicelist
To: Robert Krakora
Robert,
Can you please share you plugins-good patch?
Thanks and Regards,
Srini
--- On Wed, 31/8/11, Ajay Bhargav ajay.bhar...@einfochips.com wrote:
From: Ajay Bhargav ajay.bhar...@einfochips.com
Subject: Re: [Linux-uvc-devel] Webcam with H264 encoder not in Devicelist
To: Robert Krakora
Thanks Ajay! I just got a B990, and am trying to stream out H264.
Srini
--- On Fri, 9/9/11, Ajay Bhargav ajay.bhar...@einfochips.com wrote:
From: Ajay Bhargav ajay.bhar...@einfochips.com
Subject: Re: [Linux-uvc-devel] Webcam with H264 encoder not in Devicelist
To: Srinivas Mandavilli
Hi Srinivas,
UVC fixes wont be needed for you to get your cam output..
You can build gstreamer0.10-ffmpeg to decode H.264 stream, Robert has used
fluendo package for decoding.
--Ajay
- Max Lapshin max.laps...@gmail.com wrote:
On Fri, Sep 9, 2011 at 11:01 AM, Srinivas Mandavilli
Hi,
I would like to add support for H.264 stream format in guvcview, Could you
post some stream info, or even better an example of raw data output (does
the capture buffer contains an exact frame like in MJPEG ?)
Regards,
Paulo
2011/9/9 Ajay Bhargav ajay.bhar...@einfochips.com
Hi Srinivas,
Hi Paulo,
I am not having H.264 camera, My camera is similar to Facevision's Touchcam E1.
It sends out MPEG2-TS stream encoded with H.264. I have recorded some videos
during my testing if that is fine for you I can send across... it would be
great if guvcview can show compressed streams :) we
Hi,
I was thinking on using ffmpeg (libavcodec) since this is already a guvcview
dependency for enconding the streams, decoding them shouldn't be to hard, I
just need to understand how they are handled by the driver.
This is the reason I need the raw data, you should be able to use the v4l2
Hi,
have you tried the open svc decoder (
http://sourceforge.net/projects/opensvcdecoder/ ) ?
It would probably be easier to add as dependency.
Regards,
Paulo
2011/9/9 Alexey Fisher bug-tr...@fisher-privat.net:
Hi Paulo,
i have video dump from Robert, not v4l2... The problem with it is
Hi Paulo,
for me ffdec_h264 worked perfectly... I used current stable release of
gstreamer-ffmpeg. It has many more formats...
--Ajay Bhargav
- Paulo Assis pj.as...@gmail.com wrote:
Hi,
have you tried the open svc decoder (
http://sourceforge.net/projects/opensvcdecoder/ ) ?
It
Hi Robert,
As you know its a development camera... I think my camera need some fixing.. my
hardware decoder does not work with H.264 stream directly... I added h264parse
element before h264 decoder in gstreamer pipeline to make it work.
Regards,
Ajay Bhargav
- Robert Krakora
Well one important thing to notice is the pixel format returned by the
driver, will it differentiate between avc and svc streams, or even
mpeg2 ?
If not maybe then it becomes harder for generic apps to decode it,
unless we use a bunch of switch cases for the different cameras
(something like this
Hi,
see attached a patched capture example, for saving the driver output
buffer into raw files (200).
I haven't been able to test build it, but the changes are minimal so
it should work.
You just need to change the resolution, and maybe the pixel format to
whatever the driver expects.
see lines
Just remember to set the -o option when grabbing the frames (the
output will be redirected to the files and not stdout as displayed in
the help message)
These files should allow me to add support for the camera in guvcview.
Regards,
Paulo
2011/9/9 Robert Krakora
Robert Krakora rob.krakora at messagenetsystems.com writes:
Hello,
I just mentioned in a previous post that I have the B990 streaming H.264 with
Stephan's patches for v4l2 and some patches to GStreamer plugins-good for the
v4l2src element. There were two additional changes I made beyond
Hi,
On Wed, Aug 31, 2011 at 1:07 AM, Laurent Pinchart
laurent.pinch...@ideasonboard.com wrote:
Hi Max,
On Saturday 27 August 2011 11:50:55 Max Lapshin wrote:
By the way, have you seen document
http://www.usb.org/developers/devclass_docs/USB_Video_Class_1_1_052811.zip
?
There are some
Am 31.08.2011 08:36, schrieb Pierre Gronlier:
Hi,
On Wed, Aug 31, 2011 at 1:07 AM, Laurent Pinchart
laurent.pinch...@ideasonboard.com wrote:
Hi Max,
On Saturday 27 August 2011 11:50:55 Max Lapshin wrote:
By the way, have you seen document
On Wed, Aug 31, 2011 at 12:04 PM, Alexey Fisher
bug-tr...@fisher-privat.net wrote:
But - there are some cam now, what use uvc and notuvc stuff. It will be
interesting to use uvcvideo like a library and have some extension part.
B990 is one of this.
On other side, if logitech will make next
Hi Robert,
On Wednesday 31 August 2011 03:59:18 Robert Krakora wrote:
Hi Laurent,
The Logitech B990 does not adhere to the USB-IF spec to which you have
referred. Multiplexing H.264 in a Motion JPEG container is a bit odd.
Stephan's patches from earlier this year and some slight
- Laurent Pinchart laurent.pinch...@ideasonboard.com wrote:
Hi Robert,
On Wednesday 31 August 2011 03:59:18 Robert Krakora wrote:
Hi Laurent,
The Logitech B990 does not adhere to the USB-IF spec to which you
have
referred. Multiplexing H.264 in a Motion JPEG container is a bit
On Wed, Aug 31, 2011 at 3:29 PM, Robert Krakora
rob.krak...@messagenetsystems.com wrote:
Here are the patches I used for v4l2. I have an additional patch for the
v4l2src element for GStreamer that I am going to create and e-mail as well.
Many thanks to Stephan for his work on these patches.
- Robert Krakora rob.krak...@messagenetsystems.com wrote:
Here are the patches I used for v4l2. I have an additional patch for the
v4l2src element for GStreamer that I am going to create and e-mail as well.
Many thanks to Stephan for his work on these patches.
H264 (Logitech):
Hi Max,
On Wednesday 31 August 2011 13:44:29 Max Lapshin wrote:
On Wed, Aug 31, 2011 at 3:29 PM, Robert Krakora wrote:
Here are the patches I used for v4l2. I have an additional patch for the
v4l2src element for GStreamer that I am going to create and e-mail as
well. Many thanks to
On Wed, Aug 31, 2011 at 4:35 PM, Laurent Pinchart
laurent.pinch...@ideasonboard.com wrote:
The first patch was rejected back then because H.264 support in the V4L2 API
had to be implemented differently. Recent discussions about H.264 and V4L2
resulted in a different position, so I can now
- Robert Krakora rob.krak...@messagenetsystems.com wrote:
Hi All,
So, to test H.264, I used GStreamer 0.10.35 (+plugins-base 0.10.35) and
plugins-good 0.10.30 with the attached patch applied. I also attached the
previous patch that I sent you for uvc_video.c for v4l2. Also, I have the
Yes, Robert, thanks a lot.
___
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Linux-uvc-devel@lists.berlios.de
https://lists.berlios.de/mailman/listinfo/linux-uvc-devel
Hi Max,
On Saturday 27 August 2011 11:09:13 Max Lapshin wrote:
Robert, would You kindly tell more: how can I get H264 with UVC api?
I'm not using gstreamer, because I capture video directly into my
program. I just brought B990 home (how huge is it!)
and trying to get compressed stream.
On Wed, Aug 31, 2011 at 2:03 AM, Laurent Pinchart
laurent.pinch...@ideasonboard.com wrote:
You can't, at least for now. The uvcvideo driver doesn't support H.264.
Stephan's patches might be enough to get very basic H.264 support for some
webcams, but I'm not even sure about that.
Robert
Hi Max,
On Saturday 27 August 2011 11:50:55 Max Lapshin wrote:
By the way, have you seen document
http://www.usb.org/developers/devclass_docs/USB_Video_Class_1_1_052811.zip
?
There are some encoder setup options.
That's the totally broken spec I don't want to support.
--
Regards,
Laurent
On Wed, Aug 31, 2011 at 2:07 AM, Laurent Pinchart
laurent.pinch...@ideasonboard.com wrote:
Hi Max,
On Saturday 27 August 2011 11:50:55 Max Lapshin wrote:
By the way, have you seen document
http://www.usb.org/developers/devclass_docs/USB_Video_Class_1_1_052811.zip
?
There are some encoder
Hi Max,
On Wednesday 31 August 2011 00:06:20 Max Lapshin wrote:
On Wed, Aug 31, 2011 at 2:03 AM, Laurent Pinchart wrote:
You can't, at least for now. The uvcvideo driver doesn't support H.264.
Stephan's patches might be enough to get very basic H.264 support for
some webcams, but I'm not
Hi Max,
On Wednesday 31 August 2011 00:12:50 Max Lapshin wrote:
On Wed, Aug 31, 2011 at 2:07 AM, Laurent Pinchart wrote:
On Saturday 27 August 2011 11:50:55 Max Lapshin wrote:
By the way, have you seen document
http://www.usb.org/developers/devclass_docs/USB_Video_Class_1_1_052811.z
ip ?
- Robert Krakora rob.krak...@messagenetsystems.com wrote:
Hello,
I just mentioned in a previous post that I have the B990 streaming
H.264 with
Stephan's patches for v4l2 and some patches to GStreamer plugins-good
for the
v4l2src element. There were two additional changes I made
Hi Robert,
thank you for your response, even if it sound a bit like zombie
commercial :)
I took a look on the specification and feel like i need to put two bits
of doubt concerning this webcam, just in case some one wont to by it.
reference to:
- Pierre Gronlier pierre.gronl...@gmail.com wrote:
On 26 August 2011 21:36, Robert Krakora
rob.krak...@messagenetsystems.com wrote:
Hello,
Were you ever able to get H.264 content from the Logitech B990? I
was able to
using Stephan's patches and a patch to the v4l2src GStreamer
Am 26.08.2011 20:36, schrieb Robert Krakora:
Hello,
Were you ever able to get H.264 content from the Logitech B990? I was able to
using Stephan's patches and a patch to the v4l2src GStreamer element. I have
both audio and video. However, I have not figured out how to affect the
encoding
Robert, would You kindly tell more: how can I get H264 with UVC api?
I'm not using gstreamer, because I capture video directly into my
program. I just brought B990 home (how huge is it!)
and trying to get compressed stream.
should I select something like V4L2_PIX_FMT_H264 ?
By the way, have you seen document
http://www.usb.org/developers/devclass_docs/USB_Video_Class_1_1_052811.zip
?
There are some encoder setup options.
On Sat, Aug 27, 2011 at 1:09 PM, Max Lapshin max.laps...@gmail.com wrote:
Robert, would You kindly tell more: how can I get H264 with UVC api?
Hello,
Were you ever able to get H.264 content from the Logitech B990? I was able to
using Stephan's patches and a patch to the v4l2src GStreamer element. I have
both audio and video. However, I have not figured out how to affect the
encoding parameters that I believe are exposed by the XUs.
Hello,
I just mentioned in a previous post that I have the B990 streaming H.264 with
Stephan's patches for v4l2 and some patches to GStreamer plugins-good for the
v4l2src element. There were two additional changes I made beyond Stephan's that
I believe are necessary. I have this running on
Wow, I'm very interested in this camera. In fact I can send money for
UVC authors to buy such a camera.
___
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Linux-uvc-devel@lists.berlios.de
https://lists.berlios.de/mailman/listinfo/linux-uvc-devel
On 26 August 2011 21:36, Robert Krakora
rob.krak...@messagenetsystems.com wrote:
Hello,
Were you ever able to get H.264 content from the Logitech B990? I was able to
using Stephan's patches and a patch to the v4l2src GStreamer element. I have
both audio and video. However, I have not
Laurent Pinchart laurent.pinchart at ideasonboard.com
Wed Jun 22 02:51:09 CEST 2011
Hi,
The official H.264 UVC specification isn't better. Its only purpose is to
support Logitech webcams in Skype under Windows. Its quality is way below what
I would expect from a USB-IF specification. I
Hi Ajay,
On Thursday 23 June 2011 06:39:28 Ajay Bhargav wrote:
Hi Laurent,
Thanks for your reply. Well I know that H.264 payload is specified in newer
UVC 1.1 documentation, but my webcam is not sending H.264 as payload. Its
sending MPEG2-TS according to UVC1.0 secifications, i found out
...@gmail.com, Kofi Jedamzik k...@jedamzik.net
Sent: Wednesday, June 22, 2011 6:21:09 AM
Subject: Re: [Linux-uvc-devel] Webcam with H264 encoder not in Devicelist
Hi,
On Thursday 16 June 2011 11:09:51 Ajay Bhargav wrote:
Hi Paulo,
I have the pdf document of the same. But the thing is my camera
Hi,
On Thursday 16 June 2011 11:09:51 Ajay Bhargav wrote:
Hi Paulo,
I have the pdf document of the same. But the thing is my camera is UVC V1.0
and actual format coming from camera is H.264 encoded stream in MPEG2-TS
format. So i will have to look for only MPEG2-TS support. I hope i am
@lists.berlios.de
Sent: Wednesday, June 15, 2011 8:10:36 PM
Subject: Re: [Linux-uvc-devel] Webcam with H264 encoder not in
Devicelist
Hi,
theoretically this should do it:
gst-inspect-0.10 v4l2src ! video/x-h264 ! ffdec_h264 ! autovideosink
but, if i'm correct, current kernel do not support
Message -
From: Alexey Fisher bug-tr...@fisher-privat.net
To: Ajay Bhargav ajay.bhar...@einfochips.com
Cc: linux-uvc-devel@lists.berlios.de, Kofi Jedamzik k...@jedamzik.net
Sent: Thursday, June 16, 2011 12:06:02 PM
Subject: Re: [Linux-uvc-devel] Webcam with H264 encoder not in Devicelist
, Kofi Jedamzik k...@jedamzik.net
Sent: Thursday, June 16, 2011 12:06:02 PM
Subject: Re: [Linux-uvc-devel] Webcam with H264 encoder not in Devicelist
Hi,
Stephan Lachowsky has provided some patches for MPEG-TS and H264
support.
https://lists.berlios.de/pipermail/linux-uvc-devel/2011-February
k...@jedamzik.net, linux-uvc-devel@lists.berlios.de
Sent: Thursday, June 16, 2011 2:12:08 PM
Subject: Re: [Linux-uvc-devel] Webcam with H264 encoder not in Devicelist
Hi,
Some documentation on the subject:
http://www.quickcamteam.net/uvc-h264
Regards,
Paulo
2011/6/16 Ajay Bhargav
Hi,
... there is a new Logitech Webcam called B990 HD Webcam with
device id 046d:0828
it has an integrated hardware based H264 baseline video encoder
This cam is not listed.
MJPEG seems to work but I want to get out the H264 stream.
Is there anyone who could give me a hint how to do it?
Here
Hi,
theoretically this should do it:
gst-inspect-0.10 v4l2src ! video/x-h264 ! ffdec_h264 ! autovideosink
but, if i'm correct, current kernel do not support h264. There was a
patch for some time, but im not sure if Laurent applyed it.
Am Mittwoch, den 15.06.2011, 16:01 +0200 schrieb Kofi
how to add support for MPEG2-TS please let me
know.
--Ajay
- Original Message -
From: Alexey Fisher bug-tr...@fisher-privat.net
To: Kofi Jedamzik k...@jedamzik.net
Cc: linux-uvc-devel@lists.berlios.de
Sent: Wednesday, June 15, 2011 8:10:36 PM
Subject: Re: [Linux-uvc-devel] Webcam
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