Launchpad has imported 6 comments from the remote bug at https://bugzilla.redhat.com/show_bug.cgi?id=456868.
If you reply to an imported comment from within Launchpad, your comment will be sent to the remote bug automatically. Read more about Launchpad's inter-bugtracker facilities at https://help.launchpad.net/InterBugTracking. ------------------------------------------------------------------------ On 2008-07-28T09:28:08+00:00 Hans wrote: Short intro: I'm a long time Linux developer currently working on improving webcam support in Linux, see: http://fedoraproject.org/wiki/Features/BetterWebcamSupport I'm one of the authors of the v4l2 rewrite of the gspca usb webcam driver framework (which supports more then 100 different cams), this v4l2 rewrite has been merged into the 2.6.27 kernel and thus will become available in the official Linux kernel soon. One of the parts of the v4l2 rewrite has been removing conversion from various manufacturer cam specific video formats to more normal videoformats from the drivers, as this really does not belong in kernel space. As a result of this the gspca subdrivers can generate raw video frames in the following formats: #define V4L2_PIX_FMT_SN9C10X v4l2_fourcc('S', '9', '1', '0') /* SN9C10x compressed bayer #define V4L2_PIX_FMT_SPCA501 v4l2_fourcc('S', '5', '0', '1') /* YUYV per line #define V4L2_PIX_FMT_SPCA505 v4l2_fourcc('S', '5', '0', '5') /* YYUV per line #define V4L2_PIX_FMT_SPCA508 v4l2_fourcc('S', '5', '0', '8') /* YUVY per line #define V4L2_PIX_FMT_SPCA561 v4l2_fourcc('S', '5', '6', '1') /* compressed GBRG bayer #define V4L2_PIX_FMT_PAC207 v4l2_fourcc('P', '2', '0', '7') /* compressed BGGR bayer As we do not want to see each application implement (nor having to implement) support for these various formats, as we like to have one code base and only one code base for these formats. A library has been written (with me as the main author) to convert from these formats to BGR24 or YUV420. For more on this library see: http://hansdegoede.livejournal.com/3636.html The attached patch adds support to the pwlib v4l2 plugin to use this library if available on the system. It has also been submitted upstream: http://bugzilla.gnome.org/show_bug.cgi?id=545108 libv4l has just been build for rawhide, and should show up in the next rawhide push, in the mean time you can get it from koji: http://koji.fedoraproject.org/koji/buildinfo?buildID=57774 ### A note about the patch, the patch is actually quite simple, as libv4l has been designed for quick porting of existing apps to libv4l, for this reason libv4l fully mimicks the raw /dev/video interface (and if no conversion is needed and for non relevant calls like setting ctrl's, passes through all calls unmodified). All that the patch does and all that needs to be changed to use libv4l is replace the relevant xxx calls on /dev/video with v4l2_xxx calls. I've successfully tested this patch with ekiga and 2 spca561 cams (quite popular IC, used by both logitech and creative), 2 pac207 cams (another quite popular IC), 3 SN9C10X cams (also very popular) and 1 spca501 cam. All of which do not work (unless using gspca version 1) without this patch, as pwlib does not support their proprietary video formats (and rightfully so). Reply at: https://bugs.launchpad.net/ubuntu/+source/libv4l/+bug/260918/comments/0 ------------------------------------------------------------------------ On 2008-07-28T09:28:08+00:00 Hans wrote: Created attachment 312759 PATCH: use libv4l in v4l2 plugin, adding support for many cam specific formats Reply at: https://bugs.launchpad.net/ubuntu/+source/libv4l/+bug/260918/comments/1 ------------------------------------------------------------------------ On 2008-07-29T19:08:36+00:00 Hans wrote: Note that this patch has just been accepted upstream, see: http://bugzilla.gnome.org/show_bug.cgi?id=545108 If you want and the CVS ACL's allow it I can push this to rawhide myself. Reply at: https://bugs.launchpad.net/ubuntu/+source/libv4l/+bug/260918/comments/2 ------------------------------------------------------------------------ On 2008-08-23T07:40:11+00:00 Hans wrote: Ping! I really want to see this hit rawhide before we go into a beta freeze, and as the patch has been accepted upstream I so no reasons for not putting this in rawhide. If I get no response soon I'll commit it to rawhide myself (assuming the ACL's will let me). Reply at: https://bugs.launchpad.net/ubuntu/+source/libv4l/+bug/260918/comments/3 ------------------------------------------------------------------------ On 2008-09-19T21:08:37+00:00 Jesse wrote: Seems it's a bit late for that. Punting to F10Target. Reply at: https://bugs.launchpad.net/ubuntu/+source/libv4l/+bug/260918/comments/7 ------------------------------------------------------------------------ On 2008-09-20T17:19:12+00:00 Hans wrote: (In reply to comment #4) > Seems it's a bit late for that. Punting to F10Target. Actually this is long fixed, byt I forgot to close the bug (woopsie) closing and removing from trackers. Reply at: https://bugs.launchpad.net/ubuntu/+source/libv4l/+bug/260918/comments/8 ** Changed in: pwlib (Fedora) Importance: Unknown => Low -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to the bug report. https://bugs.launchpad.net/bugs/260918 Title: needed: libv4l and associated application patches (or "gspca stopped working in 2.6.27") To manage notifications about this bug go to: https://bugs.launchpad.net/adobe-flash-plugin-tools/+bug/260918/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
