Le vendredi 28 janvier 2022 à 12:43 -0600, Adam Ford a écrit : > On Fri, Jan 28, 2022 at 12:35 PM Nicolas Dufresne <nicolas@xxxxxxxxxxxx> wrote: > > > > Hi Adam, > > > > Jernej and I had to deal with user report which show a stride issue with the G2 > > on Allwinner H6. > > > > https://forum.libreelec.tv/thread/17565-nightly-images-for-a64-h3-h5-h6-and-r40-boards/?postID=166086#post166086 > > > > We quickly found that the stride alignment set to 16 needs to be 32. Though we > > noticed that this is only needed when using the G2 postprocessor (NV12), while > > it worked fine with tiles (NV12_4L4). > > Out of curiosity, would it hurt to make the G2 alignment to be 32 even > if it's not required? Aligning tile to 32 can be complex, I don't think the code is ready to handle padded tiled buffers. About the post-prob, I'd like to first understand why is this. > > > > > We were wondering if you, or anyone here on the list could test this on IMX8MQ > > and IMX8MM. We'd like know if this is specific to the older G2 on H6. To trigger > > this, you need a video with a resolution like 1552x1080 as used in the report. > > We can help you get one if needed. > > If you have a video you want me to try and instructions on how you > want me to test it, I can give it a shot. The imx8mm doesn't have a > video display driver yet, but I think the imx8mq does. I am not as > familiar with that board as I am with the 8mm. The testing I have > done to date has only been done with fluster. If you have fluster/gstreamer ready, and some display, I suppose you can try and kmssink (worked for me with the vendor display driver). To get the same video, you can probably download temporarily that youtube video with youtube-dl, careful not to share the file, this is copyrighted content, but it ease testing and debugging, so I suspect it falls in fair use (INAL). youtube-dl -f 248 https://www.youtube.com/watch?v=TUVcZfQe-Kw gst-launch-1.0 filesrc location="Dua Lipa - Levitating Featuring DaBaby (Official Music Video)-TUVcZfQe-Kw.webm" ! parsebin ! v4l2slvp9dec ! videoconvert ! kmssink regards, Nicolas > > adam > > > > > regards, > > Nicolas
