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 > > _______________________________________________ Linux-uvc-devel mailing list Linux-uvc-devel@lists.berlios.de https://lists.berlios.de/mailman/listinfo/linux-uvc-devel
