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Add V4L fmt -> V4L subdev fmt translation

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Will be used in the next patch.
I didn't found matching entries for V4L2_PIX_FMT_MJPEG, and
V4L2_PIX_FMT_YVU420 in linux/media-bus-format.h, so those are left as 0
(guaranteed invalid).
This commit is contained in:
Marek Marczykowski-Górecki
2026-06-30 00:35:48 +02:00
parent 686460fa29
commit 730cc3c89e
1 changed files with 23 additions and 11 deletions
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34
src/libs/capture.c
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@@ -38,6 +38,7 @@
#include <pthread.h>
#include <linux/videodev2.h>
#include <linux/v4l2-controls.h>
#include <linux/v4l2-subdev.h>
#include "types.h"
#include "errors.h"
@@ -63,18 +64,19 @@ static const struct {
static const struct {
const char *name; // cppcheck-suppress unusedStructMember
const uint format; // cppcheck-suppress unusedStructMember
const uint subdev_format; // cppcheck-suppress unusedStructMember
} _FORMATS[] = {
{"YUYV", V4L2_PIX_FMT_YUYV},
{"YVYU", V4L2_PIX_FMT_YVYU},
{"UYVY", V4L2_PIX_FMT_UYVY},
{"YUV420", V4L2_PIX_FMT_YUV420},
{"YVU420", V4L2_PIX_FMT_YVU420},
{"GREY", V4L2_PIX_FMT_GREY},
{"RGB565", V4L2_PIX_FMT_RGB565},
{"RGB24", V4L2_PIX_FMT_RGB24},
{"BGR24", V4L2_PIX_FMT_BGR24},
{"MJPEG", V4L2_PIX_FMT_MJPEG},
{"JPEG", V4L2_PIX_FMT_JPEG},
{"YUYV", V4L2_PIX_FMT_YUYV, MEDIA_BUS_FMT_YUYV8_2X8},
{"YVYU", V4L2_PIX_FMT_YVYU, MEDIA_BUS_FMT_YVYU8_2X8},
{"UYVY", V4L2_PIX_FMT_UYVY, MEDIA_BUS_FMT_UYVY8_2X8},
{"YUV420", V4L2_PIX_FMT_YUV420, MEDIA_BUS_FMT_YUV8_1X24},
{"YVU420", V4L2_PIX_FMT_YVU420, 0},
{"GREY", V4L2_PIX_FMT_GREY, MEDIA_BUS_FMT_Y8_1X8},
{"RGB565", V4L2_PIX_FMT_RGB565, MEDIA_BUS_FMT_RGB565_1X16},
{"RGB24", V4L2_PIX_FMT_RGB24, MEDIA_BUS_FMT_RGB888_1X24},
{"BGR24", V4L2_PIX_FMT_BGR24, MEDIA_BUS_FMT_BGR888_1X24},
{"MJPEG", V4L2_PIX_FMT_MJPEG, 0},
{"JPEG", V4L2_PIX_FMT_JPEG, MEDIA_BUS_FMT_JPEG_1X8},
};
static const struct {
@@ -122,6 +124,7 @@ static const char *_format_to_string_nullable(uint format);
static const char *_format_to_string_supported(uint format);
static const char *_standard_to_string(v4l2_std_id standard);
static const char *_io_method_to_string_supported(enum v4l2_memory io_method);
static int _capture_format_v4l_to_subdev(uint format);
#define _LOG_ERROR(x_msg, ...) US_LOG_ERROR("CAP: " x_msg, ##__VA_ARGS__)
@@ -1230,3 +1233,12 @@ static const char *_io_method_to_string_supported(enum v4l2_memory io_method) {
});
return "unsupported";
}
static int _capture_format_v4l_to_subdev(uint format) {
US_ARRAY_ITERATE(_FORMATS, 0, item, {
if (item->format == format) {
return item->subdev_format;
}
});
return 0;
}