1777890025.744928 close(50)             = 0
1777890025.745076 close(49)             = 0
1777890025.745230 execve("/usr/lib/firefox/v4l2test", ["/usr/lib/firefox/v4l2test", "-d", "/dev/video1"], 0xffff9ab39710 /* 27 vars */) = 0
1777890025.746147 openat(AT_FDCWD, "/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 7
1777890025.746447 close(7)              = 0
1777890025.746598 openat(AT_FDCWD, "/usr/lib/libc.so.6", O_RDONLY|O_CLOEXEC) = 7
1777890025.747560 close(7)              = 0
1777890025.748701 openat(AT_FDCWD, "/dev/null", O_WRONLY) = 7
1777890025.749192 close(7)              = 0
1777890025.749297 openat(AT_FDCWD, "/dev/video1", O_RDWR|O_NONBLOCK) = 7
1777890025.749530 ioctl(7, VIDIOC_QUERYCAP, {driver="hantro-vpu", card="rockchip,rk3568-vpu-dec", bus_info="platform:fdea0000.video-codec", version=KERNEL_VERSION(6, 19, 10), capabilities=V4L2_CAP_VIDEO_M2M_MPLANE|V4L2_CAP_EXT_PIX_FORMAT|V4L2_CAP_STREAMING|V4L2_CAP_DEVICE_CAPS, device_caps=V4L2_CAP_VIDEO_M2M_MPLANE|V4L2_CAP_EXT_PIX_FORMAT|V4L2_CAP_STREAMING}) = 0
1777890025.749677 openat(AT_FDCWD, "/sys/kernel/mm/transparent_hugepage/enabled", O_RDONLY) = 8
1777890025.749957 close(8)              = 0
1777890025.750297 ioctl(7, VIDIOC_ENUM_FMT, {index=0, type=V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE, flags=0, description="Y/UV 4:2:0", pixelformat=v4l2_fourcc('N', 'V', '1', '2') /* V4L2_PIX_FMT_NV12 */}) = 0
1777890025.750452 ioctl(7, VIDIOC_ENUM_FMT, {index=1, type=V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE}) = -1 EINVAL (Invalid argument)
1777890025.750578 ioctl(7, VIDIOC_ENUM_FMT, {index=0, type=V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE, flags=V4L2_FMT_FLAG_COMPRESSED, description="H.264 Parsed Slice Data", pixelformat=v4l2_fourcc('S', '2', '6', '4') /* V4L2_PIX_FMT_H264_SLICE */}) = 0
1777890025.750709 ioctl(7, VIDIOC_ENUM_FMT, {index=1, type=V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE, flags=V4L2_FMT_FLAG_COMPRESSED, description="MPEG-2 Parsed Slice Data", pixelformat=v4l2_fourcc('M', 'G', '2', 'S') /* V4L2_PIX_FMT_MPEG2_SLICE */}) = 0
1777890025.750860 ioctl(7, VIDIOC_ENUM_FMT, {index=2, type=V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE, flags=V4L2_FMT_FLAG_COMPRESSED, description="VP8 Frame", pixelformat=v4l2_fourcc('V', 'P', '8', 'F') /* V4L2_PIX_FMT_VP8_FRAME */}) = 0
1777890025.750989 ioctl(7, VIDIOC_ENUM_FMT, {index=3, type=V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE}) = -1 EINVAL (Invalid argument)
1777890025.751108 close(7)              = 0
1777890025.751695 +++ exited with 0 +++