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 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 495-497. > > Regards, > Paulo > > 2011/9/9 Robert Krakora <rob.krak...@messagenetsystems.com>: > > All, > > > > I forgot to tell you that I came up with one more patch for the UVC > source > > in v4l2 to get MPEG2 transport streams to behave correctly. I have > attached > > it to this e-mail. My sincerest apologies. > > > > Best Regards, > > > > -- > > Rob Krakora > > MessageNet Systems > > 101 East Carmel Dr. Suite 105 > > Carmel, IN 46032 > > (317)566-1677 Ext 212 > > (317)663-0808 Fax > > > > On Fri, Sep 9, 2011 at 10:05 AM, Paulo Assis <pj.as...@gmail.com> > 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 ? > >> 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 would be best implemented in the driver > though) > >> > >> Regards, > >> Paulo > >> > >> 2011/9/9 Ajay Bhargav <ajay.bhar...@einfochips.com>: > >> > 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" <rob.krak...@messagenetsystems.com> > wrote: > >> > > >> > Hi Ajay, > >> > > >> > The encoder in your camera may be different and produce H.264 > AVC > >> > instead of > >> > SVC. The latest gstreamer-ffmpeg did not work for me for the > FaceVsion > >> > Touchcam E1. > >> > > >> > Best Regards, > >> > > >> > Rob Krakora > >> > > >> > On Fri, Sep 9, 2011 at 9:18 AM, Ajay Bhargav > >> > <ajay.bhar...@einfochips.com> > >> > 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" <pj.as...@gmail.com> wrote: > >> >> > >> >> > 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 > >> >> > 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 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 example to store the buffer data as delivered > by the > >> >> > driver > >> >> > >> (something like buffer-1.raw,...,buffer-n.raw would be > nice), or I > >> >> > can > >> >> > >> send you some code for doing this if you prefer. > >> >> > >> > >> >> > >> Regards, > >> >> > >> Paulo > >> >> > >> > >> >> > >> 2011/9/9 Ajay Bhargav <ajay.bhar...@einfochips.com > >> >> > >> <mailto:ajay.bhar...@einfochips.com>> > >> >> > >> > >> >> > >> 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 can make use of gstreamer to achieve > this.. > >> >> > >> > >> >> > >> -- Ajay Bhargav > >> >> > >> > >> >> > >> > >> >> > >> ----- "Paulo Assis" <pj.as...@gmail.com > >> >> > <mailto:pj.as...@gmail.com>> > >> >> > >> wrote: > >> >> > >> > >> >> > >> 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 > >> >> > >> <mailto:ajay.bhar...@einfochips.com>> > >> >> > >> > >> >> > >> 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 > >> >> > >> <mailto:max.laps...@gmail.com>> wrote: > >> >> > >> > >> >> > >> > >> >> > >> > >> >> > >> On Fri, Sep 9, 2011 at 11:01 AM, Srinivas > >> >> > Mandavilli > >> >> > >> <srinivas.mandavi...@lucivid.com > >> >> > >> <mailto: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 with kernel 3.0.0 > >> >> > >> > >> >> > >> -- > >> >> > >> This message has been scanned for viruses > and > >> >> > >> dangerous content by *Clean Mail Gateway* > >> >> > >> <http://www.CleanMailGateway.com/>, and is > >> >> > >> believed to be clean. > >> >> > >> > >> >> > >> > >> >> > >> > >> >> > >> _______________________________________________ > >> >> > >> Linux-uvc-devel mailing list > >> >> > >> Linux-uvc-devel@lists.berlios.de > >> >> > >> <mailto:Linux-uvc-devel@lists.berlios.de> > >> >> > >> > >> >> > https://lists.berlios.de/mailman/listinfo/linux-uvc-devel > >> >> > >> > >> >> > >> > >> >> > >> > >> >> > >> -- > >> >> > >> This message has been scanned for viruses and > >> >> > >> dangerous content by *Clean Mail Gateway* > >> >> > >> <http://www.CleanMailGateway.com/>, and is > >> >> > >> believed to be clean. > >> >> > >> > >> >> > >> > >> >> > >> > >> >> > >> > >> >> > >> > >> >> > >> _______________________________________________ > >> >> > >> Linux-uvc-devel mailing list > >> >> > >> Linux-uvc-devel@lists.berlios.de > >> >> > >> https://lists.berlios.de/mailman/listinfo/linux-uvc-devel > >> >> > > > >> >> > > > >> >> > > >> >> > -- > >> >> > This message has been scanned for viruses and > >> >> > dangerous content by Clean Mail Gateway, and is > >> >> > believed to be clean. > >> >> > > >> >> > > >> >> > > >> >> > > ************************************************************************************************************************************************************* > >> >> > einfochips Business Disclaimer : This e-mail message and all > >> >> > attachments transmitted with it are intended solely for the > use of > >> >> > the > >> >> > addressee and may contain legally privileged and confidential > >> >> > information. 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However the company accepts no liability > for any > >> >> > damage caused by any virus transmitted by this email. > >> >> > > >> >> > > >> >> > > ************************************************************************************************************************************************************* > >> > > >> > > >> > > >> > -- > >> > Rob Krakora > >> > MessageNet Systems > >> > 101 East Carmel Dr. Suite 105 > >> > Carmel, IN 46032 > >> > (317)566-1677 Ext 212 > >> > (317)663-0808 Fax > >> > > >> > -- > >> > This message has been scanned for viruses and > >> > dangerous content by Clean Mail Gateway, and is > >> > believed to be clean. > >> > > >> > _______________________________________________ > >> > Linux-uvc-devel mailing list > >> > Linux-uvc-devel@lists.berlios.de > >> > https://lists.berlios.de/mailman/listinfo/linux-uvc-devel > >> > > >> > > > > > > > -- > This message has been scanned for viruses and > dangerous content by Clean Mail Gateway, and is > believed to be clean. > > > ************************************************************************************************************************************************************* > einfochips Business Disclaimer : This e-mail message and all > attachments transmitted with it are intended solely for the use of the > addressee and may contain legally privileged and confidential > information. 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However the > company accepts no liability for any damage caused by any virus > transmitted by this email. > ************************************************************************************************************************************************************* _______________________________________________ Linux-uvc-devel mailing list Linux-uvc-devel@lists.berlios.de https://lists.berlios.de/mailman/listinfo/linux-uvc-devel
