Hi Keith and Diego,
The Gstreamer port on DM6446 was currently tested only on the Decoder path assuming the input was from a file with container format like AVI and TS. It was not tested with live video input that would require v4l2 driver. I am not sure about your application but generally the live video input would mean you might need additional plugins like Muxers (AVI/TS/MP4) that were not developed and tested either. I assume you are also porting this to DM355 that is a different device than DM6446 but have similar device driver structure. I would be very interested in understanding the changes for Gstreamer port to DM355 + live video input as well. Thanks, Prateek ________________________________ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Diego Dompe Sent: Friday, February 22, 2008 4:11 AM To: Thornton, Keith Cc: davinci-linux-open-source@linux.davincidsp.com Subject: Re: Antwort: Re: using v4l2src and fbvideosink Keith I know first hand that TI engineers watch and support the mailing list, and that TI is compromised to support open source. Gstreamer is not a simple technology to debug and it seems to me that testing went to the decoder path. I will share more information with you along I can verify my patches are correct (rigth now I have too many printf) Regards Diego Dompe RidgeRun Engineering On Feb 22, 2008, at 1:18, "Thornton, Keith" <[EMAIL PROTECTED]> wrote: Your answer tells me two things. The first is that as far as davinci is conserned, TI has open sourced its gstreamer port without having performed the simplest of tests and TI does not seem to be monitoring this mailing list. I would interested to know what your changes to the driver are. This would bring me up to the same state as you are in and then we could proceed together. I have a feeling this may be a very long road :-( Grüsse Keith Thornton _________________ Carl Zeiss Medical Software GmbH A Carl Zeiss Meditec Company phone: +49 (0) 89 3303748-115 fax: +49 (0) 89 3303748-110 mobil: +49-15774716819 mailto:[EMAIL PROTECTED] Internet: <http://www.meditec.zeiss.com> www.meditec.zeiss.com Carl Zeiss Medical Software GmbH, Kistlerhofstr. 75, 81379 München Mitglieder der Geschäftsführung: Falk Hartwig, Dr. Ralf Kuschnereit Sitz der Gesellschaft: 81379 München, Deutschland Amtsgericht München, HRB 158857, USt-IdNr: DE 2 43 45 12 03 Diego Dompe <[EMAIL PROTECTED]> Gesendet von: <mailto:[EMAIL PROTECTED]> [EMAIL PROTECTED] 21.02.2008 23:22 An "Thornton, Keith" <[EMAIL PROTECTED]> Kopie davinci-linux-open-source@linux.davincidsp.com Thema Re: using v4l2src and fbvideosink Hi, I have the same problem with our gstreamer port for DM355 which driver uses the same code base than DM6446. The problem is the steps follow by the v4l2 source plugin to identify the min/max resolutions allowed by the v4l2 driver. The Davinci driver always overwrite the minimal value with the current value by calling the ioctl VIDIOC_G_FMT after VIDIOC_TRY_FMT (this trashes the min detection), and also returns -EINVAL for a resolution bigger than the allowed with VIDIOC_TRY_FMT (causing the v4l2 plugin to be incapable of negotiating the caps). I fixed the driver code and get the v4l2 source to negotiate the capabilities properly, but currently is breaking in some other internal error that I'm trying to trace down. If I got it running I will post the information and changes I did to the driver. Regards, Diego Dompe RidgeRun Engineering On Feb 21, 2008, at 7:26 AM, Thornton, Keith wrote: I cannot get a simple pipline from v4l2src to fbvideosink working with gst-launch. I have tried all the examples that I have found in the internet but they all report a failure to negotiate caps. I am using the gst-plugins-good-0.10.5 because that is the last version which keeps configure hapy with the TI gstreamer release. I have tried using videorate and videoscale, the video/x-raw-yuv with parameters for height, width and framerate. Has anyone else tried this out. I am using the fbvideosink with device=/dev/fb3 the error I get is ERROR: Pipeline doesn't want to pause. ERROR: from element /pipeline0/v4l2src0: Could not negotiate format Additional debug info: gstbasesrc.c(1837): gst_base_src_start (): /pipeline0/v4l2src0: Check your filtered caps, if any I have a PAL source which I am trying with 720 x 576 x 25fps Grüsse Keith Thornton _________________ Carl Zeiss Medical Software GmbH A Carl Zeiss Meditec Company phone: +49 (0) 89 3303748-115 fax: +49 (0) 89 3303748-110 mobil: +49-15774716819 mailto:[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]> Internet: www.meditec.zeiss.com <http://www.meditec.zeiss.com/> Carl Zeiss Medical Software GmbH, Kistlerhofstr. 75, 81379 München Mitglieder der Geschäftsführung: Falk Hartwig, Dr. Ralf Kuschnereit Sitz der Gesellschaft: 81379 München, Deutschland Amtsgericht München, HRB 158857, USt-IdNr: DE 2 43 45 12 03 ---------------------------------------- This message is intended for a particular addressee only and may contain business or company secrets. 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