On 8/4/24 02:57, Tim Surber wrote: > Hi Shreeya, > > I tested your patch and noticed problems when using 3840x2160 resolution > at 60fps. > > For my testing I connected an HDMI source and set it to 4k60fps. I > verified that this source and the cables work on a screen at this > resolution. > > Using > 'v4l2-ctl --verbose -d /dev/video1 > --set-fmt-video=width=3840,height=2160,pixelformat='NV12' > --stream-mmap=4 --stream-skip=3 --stream-count=100 --stream-poll' > I get the video format output, but not the periodic output which shows > the fps. > > Using > 'GST_DEBUG=4 gst-launch-1.0 -v v4l2src device=/dev/video1 ! > fpsdisplaysink text-overlay=false video-sink="fakevideosink"' > I get the following error message: > > (gst-launch-1.0:3231): GStreamer-CRITICAL **: 01:34:39.137: > gst_memory_resize: assertion 'size + mem->offset + offset <= > mem->maxsize' failed > 0:00:03.489382529 3231 0xffffa0000b90 WARN v4l2bufferpool > gstv4l2bufferpool.c:2209:gst_v4l2_buffer_pool_process:<v4l2src0:pool0:src> Dropping truncated buffer, this is likely a driver bug. > 0:00:03.489421906 3231 0xffffa0000b90 WARN bufferpool > gstbufferpool.c:1252:default_reset_buffer:<v4l2src0:pool0:src> Buffer > 0xffff98008e80 without the memory tag has maxsize (8294400) that is > smaller than the configured buffer pool size (12441600). The buffer will > be not be reused. This is most likely a bug in this GstBufferPool subclass > > > Everything works with 4k30fps or 1080p 60fps. The hardware should > support 4k60fps. Please do `echo 3 > /sys/module/synopsys_hdmirx/parameters/debug` and show the kernel log of capturing 4k@60 with v4l2-ctl. -- Best regards, Dmitry
