Hi Enric, On Wednesday 12 January 2011 12:58:04 Enric Balletbà i Serra wrote: > Hi all, > > As explained in my first mail I would like port the tvp515x driver to > new media framework, I'm a newbie with the v4l2 API and of course with > the new media framework API, so sorry if next questions are stupid or > trivial (please, patience with me). > > My idea is follow this link schem: > > --------------------------------------- > -------------------------------------------- > --------------------- | | | 1 > > | ----------> | OMAP3 ISP CCDC OUTPUT | > | TVP515x | 0 | -----> | 0 | OMAP3 ISP CCDC --- | > > -------------------------------------------- > -------------------- | | | 2 | > --------------------------------------- ASCII art would look much better if you drew it in a non-proportional font, with 80 character per line at most. > Where: > * TVP515x is /dev/v4l-subdev8 c 81 15 > * OMAP3 ISP CCDC is /dev/v4l-subdev2 c 81 4 > * OMAP3 ISP CCDC OUTPUT is /dev/video2 c 81 5 > > Then activate these links with > > ./media-ctl -r -l '"tvp5150 2-005c":0->"OMAP3 ISP CCDC":0[1], "OMAP3 > ISP CCDC":1->"OMAP3 ISP CCDC output":0[1]' > Resetting all links to disabled > Setting up link 16:0 -> 5:0 [1] > Setting up link 5:1 -> 6:0 [1] > > I'm on the right way or I'm completely lost ? That's correct. > I think the next step is adapt the tvp515x driver to new media > framework, I'm not sure how to do this, someone can give some points ? You need to implement subdev pad operations. get_fmt and set_fmt are required. > Once this is done, I suppose I can test using gstreamer, for example > using something like this. > > gst-launch v4l2src device=/dev/video2 ! ffmpegcolorspace ! xvimagesink > > I'm right in this point ? You need to specify the format explicitly. It must be identical to the format configured on pad CCDC:1. -- Regards, Laurent Pinchart -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
