Mr.Gxb wrote: ↑2024-03-08 3:15 I added ffmpeg to buildroot and ran into this problem when compiling.

{SDK}/sysdrv/tools/board/gdb/gdb-10.2/missing: 81: makeinfo: not found
WARNING: 'makeinfo' is missing on your system.
You should only need it if you modified a '.texi' file, or
any other file indirectly affecting the aspect of the manual.
You might want to install the Texinfo package:
<http://www.gnu.org/software/texinfo/>
The spurious makeinfo call might also be the consequence of
using a buggy 'make' (AIX, DU, IRIX), in which case you might
want to install GNU make
<http://www.gnu.org/software/make/>

sudo apt-get install texinfo
sudo apt-get install make

Mr.Gxb wrote: ↑2024-03-12 2:47 Thank you for your answer, I have solved this problem, but I have encountered a new problem, I want to use V4L2 to develop the SC3336 camera, according to the prompt I use /dev/video15, but the program prompt has been unable to find the device.
I have used this command：
v4l2-ctl --device=/dev/video15 --set-fmt-video=width=640,height=480,pixelformat=NV12 --stream-mmap --stream-to=video50.yuv --stream-count=60
And his response to me was：
stream_cif_mipi_id0: s_power 1, entity use_count 1 VIDIOC_STREAMON returned -1 (Invalid argument)
rkisp-vir0: rkisp_bypasspath_4x4sampling from rkisp_bypasspath, force to 240x135 NV12
rkisp-vir0: rkisp_bypasspath_4x4sampling from rkisp_bypasspath no start
stream_cif_mipi_id0: s_power 0, entity use_count 0
Then I carried out the instruction：
v4l2-ctl --device=/dev/video15 --set-fmt-video=width=240,height=135,pixelformat=NV12 --stream-mmap --stream-to=video50.yuv --stream-count=60
And his response to me was：
stream_cif_mipi_id0: s_power 1, entity use_count 1 VIDIOC_STREAMON returned -1 (Invalid argument)
rkisp-vir0: rkisp_bypasspath_4x4sampling from rkisp_bypasspath no start
stream_cif_mipi_id0: s_power 0, entity use_count 0