On Wed, Mar 11, 2026 at 06:59 AM, Brandon Brnich wrote: > > Upstream gstreamer has introduced a new method for mapping V4L2 buffer > formats to their respective GST format. Previously it was a big switch > statement manually assigning all contiguous and non-contiguous variants to > fourcc and fourcc_nc respectively. Formats that didn't have both options > would only populate the fourcc. The new mapping properly sets the > corresponding fourcc/fourcc_nc. This means for pixel formats that have no > contiguous option, the non-contiguous option should be checked prior to > pipeline negotiation failures. > > Signed-off-by: Brandon Brnich <[email protected]> Tested-by: Telukula Jeevan Kumar Sahu <[email protected]> > --- > ...pt-non-contiguous-if-contiguous-form.patch | 36 +++++++++++++++++++ > .../gstreamer1.0-plugins-good_1.26-arago.inc | 1 + > 2 files changed, 37 insertions(+) > create mode 100644 > meta-arago-extras/recipes-multimedia/gstreamer/gstreamer1.0-plugins-good/0007-v4l2object-Attempt-non-contiguous-if-contiguous-form.patch > > diff --git > b/meta-arago-extras/recipes-multimedia/gstreamer/gstreamer1.0-plugins-good/0007-v4l2object-Attempt-non-contiguous-if-contiguous-form.patch > new file mode 100644 > index 00000000..db7e6f0c > --- /dev/null > +++ > b/meta-arago-extras/recipes-multimedia/gstreamer/gstreamer1.0-plugins-good/0007-v4l2object-Attempt-non-contiguous-if-contiguous-form.patch > @@ -0,0 +1,36 @@ > +From 8d29018dd31be2045f6724db0942ae1a7da0a789 Mon Sep 17 00:00:00 2001 > +From: Brandon Brnich <[email protected]> > +Date: Tue, 10 Mar 2026 19:47:35 -0500 > +Subject: [PATCH] v4l2object: Attempt non-contiguous if contiguous format > isn't > + present > + > +Gstreamer previously had logic that would set fourcc even if the format > +being negotiated didn't have a contiguous option - YUYV for example. A fix > +was sent to properly set either forcc/forcc_nc properly. For formats that > +don't have contiguous formats, that would mean attempting non-contiguous > +options wouldn't happen. Attempt non-contiguous formats before erroring > +out if applicable. > + > +Upstream-Status: Inappropriate [TI-custom] > + > +Signed-off-by: Brandon Brnich <[email protected]> > +--- > + sys/v4l2/gstv4l2object.c | 2 +- > + 1 file changed, 1 insertion(+), 1 deletion(-) > + > +diff --git a/sys/v4l2/gstv4l2object.c b/sys/v4l2/gstv4l2object.c > +index dbfe4992be..b4a7c32f31 100644 > +--- a/sys/v4l2/gstv4l2object.c > ++++ b/sys/v4l2/gstv4l2object.c > +@@ -2167,7 +2167,7 @@ gst_v4l2_object_get_caps_info (GstV4l2Object * > v4l2object, GstCaps * caps, > + > + if (fourcc) > + fmt = gst_v4l2_object_get_format_from_fourcc (v4l2object, fourcc); > +- else if (fourcc == 0) > ++ else if (fourcc_nc == 0) > + goto unhandled_format; > + > + if (fmt == NULL) { > +-- > +2.43.0 > + > diff --git > b/meta-arago-extras/recipes-multimedia/gstreamer/gstreamer1.0-plugins-good_1.26-arago.inc > index f64790bc..9e418b86 100644 > --- > a/meta-arago-extras/recipes-multimedia/gstreamer/gstreamer1.0-plugins-good_1.26-arago.inc > +++ > b/meta-arago-extras/recipes-multimedia/gstreamer/gstreamer1.0-plugins-good_1.26-arago.inc > @@ -7,6 +7,7 @@ SRC_URI:append = " \ > file://0005-HACK-gstv4l2object-Increase-min-buffers-for-CSI-capt.patch \ > file://0001-v4l2jpegenc-Add-support-for-cropping-in-JPEG-Encoder.patch \ > file://0006-v4l2object-use-actual-stream-resolution-for-encoded-.patch \ > + file://0007-v4l2object-Attempt-non-contiguous-if-contiguous-form.patch \ > " > > PR:append = ".arago0" > -- > 2.34.1 > >
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