Hi,
I didn't really understand UVC framework so I have a very ugly workaround
patch for this FaceVsion camera. It did work on my MIPS platform with linux-2.6.31
and the TS packets lost is gone. There is no more blocky effects on the
captured video stream.
diff --git a/drivers/media/video/uvc/
- "Laurent Pinchart" wrote:
> Hi Ajay,
>
> On Thursday 03 November 2011 13:43:17 Ajay Bhargav wrote:
> >
> > Thank you taking charge on the MPEG2-TS support. I was thinking
> that
> > MPEG2-TS container format may contain video stream encoded
> differently
> > other than H.264. So is it go
Hi Ajay,
On Thursday 03 November 2011 13:43:17 Ajay Bhargav wrote:
>
> Thank you taking charge on the MPEG2-TS support. I was thinking that
> MPEG2-TS container format may contain video stream encoded differently
> other than H.264. So is it good to take out the container part and
> exposing the
Hi Robert,
On Monday 21 November 2011 16:49:46 Robert Krakora wrote:
> On Thu, Nov 10, 2011 at 3:34 PM, Robert Krakora wrote:
> > On Thu, Nov 3, 2011 at 7:55 AM, Laurent Pinchart wrote:
> >> On Thursday 03 November 2011 12:34:55 Robert Krakora wrote:
> >> > Hi Guys,
> >> >
> >> > I did not see au
- "Ajay Bhargav" wrote:
> - "Laurent Pinchart" 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
> > > FaceVsion camera. I purchased o
- "Laurent Pinchart" 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
> > FaceVsion camera. I purchased one for Laurent for development
> purposes. It
> >
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
- "Laurent Pinchart" 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 very much depends on
- "Laurent Pinchart" 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
> > packets.
>
> Why 44 ?
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-
T
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,
La
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 :
> Hi Paulo,
>
> This is good.. thanks I will test it with my camera too.
Hi Paulo,
This is good.. thanks I will test it with my camera too..
Regards,
Ajay Bhargav
- "Paulo Assis" 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 are minimal s
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 :
> Thanks Paulo!
>
> On Fri, Sep
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 49
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 w
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" wrote:
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" wrote:
> Hi,
> have you tried the open svc decoder (
> http://sourceforge.net/projects/opensvcdecoder/ ) ?
>
> It would probably
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 :
> Hi Paulo,
>
> i have video dump from Robert, not v4l2... The problem with it is codec. It
> seems to be some S
Hi Paulo,
i have video dump from Robert, not v4l2... The problem with it is codec.
It seems to be some SVC variant of h264 and ffmpeg can't play it
correctly. Robert say, currently only fluh264dec (flyendo plugin for
gstreamer) can play it.
Am 09.09.2011 13:23, schrieb Paulo Assis:
Hi,
I wa
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
capture
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 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
> Hi Srinivas,
>
> UVC fixes wont be needed f
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" wrote:
On Fri, Sep 9, 2011 at 11:01 AM, Srinivas Mandavilli <
srinivas.mandavi.
On Fri, Sep 9, 2011 at 11:01 AM, Srinivas Mandavilli <
srinivas.mandavi...@lucivid.com> wrote:
> Thanks Ajay! I just got a B990, and am trying to stream out H264.
>
> Hi, Srinivas. Be so kind: if you will have success with it, write an email:
what kernel version are you using?
I failed to do it w
Thanks Ajay! I just got a B990, and am trying to stream out H264.
Srini
--- On Fri, 9/9/11, Ajay Bhargav wrote:
From: Ajay Bhargav
Subject: Re: [Linux-uvc-devel] Webcam with H264 encoder not in Devicelist
To: "Srinivas Mandavilli"
Cc: linux-uvc-devel@lists.berlios.de, "
share you plugins-good patch?
Thanks and Regards,
Srini
--- On Wed, 31/8/11, Ajay Bhargav wrote:
From: Ajay Bhargav
Subject: Re: [Linux-uvc-devel] Webcam with H264 encoder not in Devicelist
To: "Robert Krakora"
Cc: linux-uvc-devel@lists.berlios.de
Date: Wednesday, 31 A
Hi Robert,
Can you please share you plugins-good patch?
Thanks and Regards,
Srini
--- On Wed, 31/8/11, Ajay Bhargav wrote:
From: Ajay Bhargav
Subject: Re: [Linux-uvc-devel] Webcam with H264 encoder not in Devicelist
To: "Robert Krakora"
Cc: linux-uvc-devel@lists.berlios.de
Date:
Robert Krakora 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 Stephan
Yes, Robert, thanks a lot.
___
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Linux-uvc-devel@lists.berlios.de
https://lists.berlios.de/mailman/listinfo/linux-uvc-devel
- "Robert Krakora" 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
Fluendo Codec Bundle installed
On Wed, Aug 31, 2011 at 4:35 PM, Laurent Pinchart
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 apply the patch. I've asked
> Steph
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
- "Robert Krakora" wrote:
Here is one more patch that I found necessary to get MPEG2 TS to work...there
is also a slight change to the same file where it appears there is a bug that I
attempted and seemed to have addressed. I will discuss the perceived "bug" with
Laurent in a separate t
- "Robert Krakora" wrote:
Here is one more patch that I found necessary to get MPEG2 TS to work...there
is also a slight change to the same file where it appears there is a bug that I
attempted and seemed to have addressed. I will discuss the perceived "bug" with
Laurent in a separate t
- "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 Stephan for his work on these patches.
H264 (Logitech):
https://patchwork.kernel.org/patch/5156
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 Stephan for his work on these patches.
>
> H264 (Logitech):
> https://pa
- "Laurent Pinchart" 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
> odd.
> > Stephan'
Hi,
On Wednesday 31 August 2011 10:11:41 Max Lapshin wrote:
> On Wed, Aug 31, 2011 at 12:04 PM, Alexey Fisher 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.
> >
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 modifi
Hi Alexey,
On Wednesday 31 August 2011 10:04:25 Alexey Fisher wrote:
> Am 31.08.2011 08:36, schrieb Pierre Gronlier:
> > On Wed, Aug 31, 2011 at 1:07 AM, Laurent Pinchart wrote:
> >> On Saturday 27 August 2011 11:50:55 Max Lapshin wrote:
> >>> By the way, have you seen document
> >>> http://www.us
Hi Pierre,
On Wednesday 31 August 2011 08:36:19 Pierre Gronlier wrote:
> On Wed, Aug 31, 2011 at 1:07 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_
On Wed, Aug 31, 2011 at 12:04 PM, Alexey Fisher
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 month new cam with other H
Am 31.08.2011 08:36, schrieb Pierre Gronlier:
Hi,
On Wed, Aug 31, 2011 at 1:07 AM, Laurent Pinchart
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
Hi,
On Wed, Aug 31, 2011 at 1:07 AM, Laurent Pinchart
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 setup options.
>
> T
- "Robert Krakora" 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 beyond
> Stephan's that
> I b
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.
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
On Wed, Aug 31, 2011 at 2:07 AM, Laurent Pinchart
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 setup options.
>
> That's
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,
Laure
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 even sure about that.
>
Robert showed that there is some result
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.
- "Pierre Gronlier" wrote:
> On 26 August 2011 21:36, Robert Krakora
> 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. Ho
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:
http://www.logitech.com/en-us/for-business/products
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 wrote:
> Robert, would You kindly tell more: how can I get H264 with UVC api?
>
> I'm not using gstrea
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 ?
__
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 param
On 26 August 2011 21:36, Robert Krakora
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 figured out how to affect the
> en
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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https://lists.berlios.de/mailman/listinfo/linux-uvc-devel
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 CentO
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. I
> 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
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 ou
ent: 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 is UVC V1.0
> and actual format co
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
ists.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 Alexey,
>
> Thanks for reply
to
> forward proper information to v4l2 layer.
>
> --Ajay
>
>
> - Original Message -
> From: "Alexey Fisher"
> To: "Ajay Bhargav"
> Cc: linux-uvc-devel@lists.berlios.de, "Kofi Jedamzik"
> Sent: Thursday, June 16, 2011 12:06:02
v4l2 layer.
--Ajay
- Original Message -
From: "Alexey Fisher"
To: "Ajay Bhargav"
Cc: linux-uvc-devel@lists.berlios.de, "Kofi Jedamzik"
Sent: Thursday, June 16, 2011 12:06:02 PM
Subject: Re: [Linux-uvc-devel] Webcam with H264 encoder not in Devicelist
Hi,
S
ofi Jedamzik"
> Cc: linux-uvc-devel@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 ! ff
how to add support for MPEG2-TS please let me
know.
--Ajay
- Original Message -
From: "Alexey Fisher"
To: "Kofi Jedamzik"
Cc: linux-uvc-devel@lists.berlios.de
Sent: Wednesday, June 15, 2011 8:10:36 PM
Subject: Re: [Linux-uvc-devel] Webcam with H264 encoder no
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 Jedamzi
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