Tx2 Jetpack4.2 do not support yuv422 8bit input.

Autonomous Machines Jetson & Embedded Systems Jetson TX2
1

I have a 4k30fps video connect to tx2 mipi csi-2 port ab,some of dts code as fllows

active_w = "3840";
active_h = "2160";
mode_type = "yuv";
pixel_phase = "uyvy";
csi_pixel_bit_depth = "8";

and I got bellow error when sensor probe:

[    3.486667] extract_pixel_format: Need to extend formatyuv_uyvy8

Could someone give the patch to me for format yuv_uyvy8?

Thank you.

2

hello suchb,

may I know which JetPack release you’re working with.
you may also review the support format types in camera_common_colorfmt.
for example,
$l4t-r32.2/public_sources/kernel/nvidia/drivers/media/platform/tegra/camera/camera_common.c

you should also extend support formats in extract_pixel_format() function calls,
for example,
$l4t-r32.2/public_sources/kernel/nvidia/drivers/media/platform/tegra/camera/sensor_common.c

3

Hi JerryChang,

My tx2 working wich JetPack4.2,and 4K30fps YUV422 8bit mipi csi-2 video stream connect to tx2 csi-port AB, so I set ‘csi_pixel_bit_depth = “8”;’.

camera_common_colorfmt & extract_pixel_format() as follows

static const struct camera_common_colorfmt camera_common_color_fmts[] = {
	{
		MEDIA_BUS_FMT_SRGGB12_1X12,
		V4L2_COLORSPACE_SRGB,
		V4L2_PIX_FMT_SRGGB12,
	},
	{
		MEDIA_BUS_FMT_SGRBG12_1X12,
		V4L2_COLORSPACE_SRGB,
		V4L2_PIX_FMT_SGRBG12,
	},
	{
		MEDIA_BUS_FMT_SRGGB10_1X10,
		V4L2_COLORSPACE_SRGB,
		V4L2_PIX_FMT_SRGGB10,
	},
	{
		MEDIA_BUS_FMT_SGRBG10_1X10,
		V4L2_COLORSPACE_SRGB,
		V4L2_PIX_FMT_SGRBG10,
	},
	{
		MEDIA_BUS_FMT_SBGGR10_1X10,
		V4L2_COLORSPACE_SRGB,
		V4L2_PIX_FMT_SBGGR10,
	},
	{
		MEDIA_BUS_FMT_SRGGB8_1X8,
		V4L2_COLORSPACE_SRGB,
		V4L2_PIX_FMT_SRGGB8,
	},
	{
		MEDIA_BUS_FMT_YUYV8_1X16,
		V4L2_COLORSPACE_SRGB,
		V4L2_PIX_FMT_YUYV,
	},
	{
		MEDIA_BUS_FMT_YVYU8_1X16,
		V4L2_COLORSPACE_SRGB,
		V4L2_PIX_FMT_YVYU,
	},
	{
		MEDIA_BUS_FMT_UYVY8_1X16,
		V4L2_COLORSPACE_SRGB,
		V4L2_PIX_FMT_UYVY,
	},
	{
		MEDIA_BUS_FMT_VYUY8_1X16,
		V4L2_COLORSPACE_SRGB,
		V4L2_PIX_FMT_VYUY,
	},
	{
		MEDIA_BUS_FMT_YUYV8_2X8,
		V4L2_COLORSPACE_SRGB,
		V4L2_PIX_FMT_YUYV,
	},
	{
		MEDIA_BUS_FMT_YVYU8_2X8,
		V4L2_COLORSPACE_SRGB,
		V4L2_PIX_FMT_YVYU,
	},
	{
		MEDIA_BUS_FMT_UYVY8_2X8,
		V4L2_COLORSPACE_SRGB,
		V4L2_PIX_FMT_UYVY,
	},
	{
		MEDIA_BUS_FMT_VYUY8_2X8,
		V4L2_COLORSPACE_SRGB,
		V4L2_PIX_FMT_VYUY,
	},

	/*
	 * The below two formats are not supported by VI4,
	 * keep them at the last to ensure they get discarded
	 */
	{
		MEDIA_BUS_FMT_XRGGB10P_3X10,
		V4L2_COLORSPACE_SRGB,
		V4L2_PIX_FMT_XRGGB10P,
	},
	{
		MEDIA_BUS_FMT_XBGGR10P_3X10,
		V4L2_COLORSPACE_SRGB,
		V4L2_PIX_FMT_XRGGB10P,
	},
};

static int extract_pixel_format(
	const char *pixel_t, u32 *format)
{
	size_t size = strnlen(pixel_t, OF_MAX_STR_LEN);

	if (strncmp(pixel_t, "bayer_bggr10", size) == 0)
		*format = V4L2_PIX_FMT_SBGGR10;
	else if (strncmp(pixel_t, "bayer_rggb10", size) == 0)
		*format = V4L2_PIX_FMT_SRGGB10;
	else if (strncmp(pixel_t, "bayer_grbg10", size) == 0)
		*format = V4L2_PIX_FMT_SGRBG10;
	else if (strncmp(pixel_t, "bayer_bggr12", size) == 0)
		*format = V4L2_PIX_FMT_SBGGR12;
	else if (strncmp(pixel_t, "bayer_rggb12", size) == 0)
		*format = V4L2_PIX_FMT_SRGGB12;
	else if (strncmp(pixel_t, "bayer_wdr_pwl_rggb12", size) == 0)
		*format = V4L2_PIX_FMT_SRGGB12;
	else if (strncmp(pixel_t, "bayer_wdr_dol_rggb10", size) == 0)
		*format = V4L2_PIX_FMT_SRGGB10;
	else if (strncmp(pixel_t, "bayer_xbggr10p", size) == 0)
		*format = V4L2_PIX_FMT_XBGGR10P;
	else if (strncmp(pixel_t, "bayer_xrggb10p", size) == 0)
		*format = V4L2_PIX_FMT_XRGGB10P;
	else if (strncmp(pixel_t, "yuv_yuyv16", size) == 0)
		*format = V4L2_PIX_FMT_YUYV;
	else if (strncmp(pixel_t, "yuv_yvyu16", size) == 0)
		*format = V4L2_PIX_FMT_YVYU;
	else if (strncmp(pixel_t, "yuv_uyvy16", size) == 0)
		*format = V4L2_PIX_FMT_UYVY;
	else if (strncmp(pixel_t, "yuv_vyuy16", size) == 0)
		*format = V4L2_PIX_FMT_VYUY;
	else {
		pr_err("%s: Need to extend format%s\n", __func__, pixel_t);
		return -EINVAL;
	}

	return 0;
}
4

hello suchb,

we don’t validate 8-bit sources,
please refer to similar discussion thread, Topic 1046071, and Topic 1051967 for more details.
thanks