On Tue, Oct 8, 2019 at 4:21 AM Fabio Estevam <festevam@xxxxxxxxx> wrote: > > On Mon, Oct 7, 2019 at 10:07 PM Fabio Estevam <festevam@xxxxxxxxx> wrote: > > > So now I need to see if I can get Gstreamer to accept a pipeline like: > > > > gst-lauch-1.0 v4l2src ! kmssink > > Ok, so now I decided use the hardware video deinterlacer: > > media-ctl -l "'adv7180 1-0021':0 -> 'ipu1_csi0':0[1]" > media-ctl -l "'ipu1_csi0':1 -> 'ipu1_vdic':0[1]" > media-ctl -l "'ipu1_vdic':2 -> 'ipu1_ic_prp':0[1]" > media-ctl -l "'ipu1_ic_prp':2 -> 'ipu1_ic_prpvf':0[1]" > media-ctl -l "'ipu1_ic_prpvf':1 -> 'ipu1_ic_prpvf capture':0[1]" > > media-ctl -V "'adv7180 1-0021':0 [fmt:UYVY2X8/720x480 field:alternate]" > media-ctl -V "'ipu1_csi0':1 [fmt:AYUV32/720x480]" > media-ctl -V "'ipu1_vdic':2 [fmt:AYUV32/720x480 field:none]" > media-ctl -V "'ipu1_ic_prp':2 [fmt:AYUV32/720x480 field:none]" > media-ctl -V "'ipu1_ic_prpvf':1 [fmt:AYUV32/720x480field:none]" > > And then Gstreamer can be launched: > > # gst-launch-1.0 v4l2src device=/dev/video2 ! kmssink --verbose > Setting pipeline to PAUSED ... > Pipeline is live and does not need PREROLL ... > /GstPipeline:pipeline0/GstKMSSink:kmssink0: display-width = 800 > /GstPipeline:pipeline0/GstKMSSink:kmssink0: display-height = 480 > Setting pipeline to PLAYING ... > New clock: GstSystemClock > /GstPipeline:pipeline0/GstV4l2Src:v4l2src0.GstPad:src: caps = > video/x-raw, format=(string)YUY2, width=(int)720, height=(int)480, > framerate=(fraction)25/1, colorimetry=(string)bt601, > interlace-mode=(string)progressive > /GstPipeline:pipeline0/GstKMSSink:kmssink0.GstPad:sink: caps = > video/x-raw, format=(string)YUY2, width=(int)720, height=(int)480, > framerate=(fraction)25/1, colorimetry=(string)bt601, > interlace-mode=(string)progressive > Fabio, Yes, you need to use the vdic to capture from adv7180 with gstreamer as it can't handle alternate. > However the video looks like a broken old TV scrolling the image horizontally: > https://www.dropbox.com/s/2yef8egn6s8z7ff/mx53_adv7180_capture.mp4?dl=0 > This would be because of the initial corrupt frames that this and many other decoders produce while waiting for proper sync. I added 'g_skip_frames' support in 9483a3f8e1b58ba1d7cd21687d8d0a63a015c36b but I'm not sure how to get gstreamer to use it? I still carry around a patch from Steve for imx-csi that drops first few frames from BT656 sources: https://github.com/Gateworks/linux-imx6/commit/959fbd42ee6433f49ef4a04fb1abe8f8c78db5ad to deal with this. Tim
