i.MX Processors中的主题 Re: ./mx8_v4l2_cap_drm.out source code?

./mx8_v4l2_cap_drm.out source code?

marcus-castlepeakinc — Sun, 09 Jan 2022 20:59:44 GMT

I've got a 8MPLUSPD4-PEVK. I tried to run

root@imx8mpevk:/unit_tests/V4L2# ./mx8_v4l2_cap_drm.out -cam 7 -fmt NV12 -of
(init_video_channel:513): init channel[0] save_file_name=0.NV12
(init_video_channel:517): init channel[0] v4l2_dev_name=/dev/video0 w/h=(1280,800)
(init_video_channel:513): init channel[1] save_file_name=1.NV12
(init_video_channel:517): init channel[1] v4l2_dev_name=/dev/video1 w/h=(1280,800)
(init_video_channel:513): init channel[2] save_file_name=2.NV12
(init_video_channel:517): init channel[2] v4l2_dev_name=/dev/video2 w/h=(1280,800)
(open_save_file:594): open 0.NV12 success
(open_save_file:594): open 1.NV12 success
(open_save_file:594): open 2.NV12 success
(main:1835): =*= success =*=

And got 3 zero length files.

Does anyone have any idea?

Oh, and does anyone know where the source is to mx8_v4l2_cap_drm?

Re: ./mx8_v4l2_cap_drm.out source code?

igorpadykov — Sun, 09 Jan 2022 22:57:32 GMT

Hi Marcus

sources can be found in

https://source.codeaurora.org/external/imx/imx-test/tree/test/mxc_v4l2_test/mx8_v4l2_cap_drm.c?h=lf-5.10.72_2.2.0

Best regards
igor

Re: ./mx8_v4l2_cap_drm.out source code?

marcus-castlepeakinc — Mon, 10 Jan 2022 00:12:43 GMT

Thanks. On my imx8PLUSLPD4 with yocto 5.10.72, in /unit_tests/V4L2, the README, "Case 2", the DTB file: fsl-imx8qxp-mek-mipi-ov5640.dtb, does the imx8 plus support that? It's not listed in the release notes.

Re: ./mx8_v4l2_cap_drm.out source code?

marcus-castlepeakinc — Mon, 10 Jan 2022 15:35:52 GMT

so will these tests work on the i.mx8 plus?

Re: ./mx8_v4l2_cap_drm.out source code?

marcus-castlepeakinc — Mon, 10 Jan 2022 23:39:32 GMT

Is there a specific reason? Is it the board?

Re: ./mx8_v4l2_cap_drm.out source code?

marcus-castlepeakinc — Tue, 11 Jan 2022 01:08:10 GMT

Would you please tell me what specifically about the i.MX8Plus is not compatible with mx8_v4l2_cap_drm.out?

Re: ./mx8_v4l2_cap_drm.out source code?

igorpadykov — Tue, 11 Jan 2022 08:48:49 GMT

sorry, you are right. Supported devices are provided in main()

int main(int argc, const char *argv[])
{
struct media_dev media;
char *soc_list[] = { "i.MX8QM", "i.MX8QXP", "i.MX8MN", "i.MX8MP", "i.MX8ULP" };