On Mon, Oct 7, 2019 at 10:07 PM Fabio Estevam <feste...@gmail.com> wrote: > > On Mon, Oct 7, 2019 at 9:51 PM Steve Longerbeam <slongerb...@gmail.com> wrote: > > > Ah progress. Try: > > > > v4l2-ctl -d0 --set-fmt-video=field=interlaced > > Yes, with this hint I can run: > > # v4l2-ctl -d0 --set-fmt-video=field=interlaced > # v4l2-ctl --device /dev/video0 --stream-mmap --stream-to=x.raw > --stream-count=1 > > And it seems to accept the capture of a frame. > > Without passing field=interlaced, I used to get: > > # v4l2-ctl --device /dev/video0 --stream-mmap --stream-to=x.raw > --stream-count=1 > [ 163.838944] ipu1_csi0: capture format not valid > > So now I need to see if I can get Gstreamer to accept a pipeline like: > > gst-lauch-1.0 v4l2src ! kmssink
Even though the one-frame capture via v4l2-ctl seems to work: # v4l2-ctl -d0 --set-fmt-video=field=interlaced # v4l2-ctl --device /dev/video0 --stream-mmap --stream-to=x.raw --stream-count=1 , Gstreamer is still not happy: # gst-launch-1.0 v4l2src ! kmssink Setting pipeline to PAUSED ... Pipeline is live and does not need PREROLL ... Setting pipeline to PLAYING ... New clock: GstSystemClock ERROR: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Device '/dev/video0' does not support progressive interlacing Additional debug info: ../../../gst-plugins-good-1.14.4/sys/v4l2/gstv4l2object.c(3813): gst_v4l2_object_set_format_full (): /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Device wants interleaved interlacing Execution ended after 0:00:00.022400639 Setting pipeline to PAUSED ... Setting pipeline to READY ... Setting pipeline to NULL ... Freeing pipeline ...
