From 76424950e373d3b04ac3dd13019151bfba3e8423 Mon Sep 17 00:00:00 2001 From: sumuel Date: Mon, 17 Aug 2026 20:44:55 +0000 Subject: Add the files --- src/detection/camera/camera_linux.c | 94 +++++++++++++++++++++++++++++++++++++ 1 file changed, 94 insertions(+) create mode 100644 src/detection/camera/camera_linux.c (limited to 'src/detection/camera/camera_linux.c') diff --git a/src/detection/camera/camera_linux.c b/src/detection/camera/camera_linux.c new file mode 100644 index 0000000..2fea2b4 --- /dev/null +++ b/src/detection/camera/camera_linux.c @@ -0,0 +1,94 @@ +#include "camera.h" +#include "common/io.h" + +#include +#include +#include + +#if FF_HAVE_LINUX_VIDEODEV2 + #include +#elif __has_include() // OpenBSD + #include + #define FF_HAVE_LINUX_VIDEODEV2 1 +#endif + +const char* ffDetectCamera(FFlist* result) { +#if FF_HAVE_LINUX_VIDEODEV2 + char path[] = "/dev/videoN"; + + for (uint32_t i = 0; i <= 9; ++i) { + path[ARRAY_SIZE(path) - 2] = (char) (i + '0'); + FF_AUTO_CLOSE_FD int fd = open(path, O_RDONLY | O_CLOEXEC); + if (fd < 0) { + if (errno == ENOENT) { + break; + } + if (errno == ENXIO) { + continue; + } + return "Failed to open /dev/videoN"; + } + + struct v4l2_capability cap = {}; + if (ioctl(fd, VIDIOC_QUERYCAP, &cap) < 0 || !(cap.capabilities & V4L2_CAP_VIDEO_CAPTURE)) { + continue; + } + + struct v4l2_format fmt = { .type = V4L2_BUF_TYPE_VIDEO_CAPTURE }; + if (ioctl(fd, VIDIOC_G_FMT, &fmt) < 0) { + continue; + } + + FFCameraResult* camera = FF_LIST_ADD(FFCameraResult, *result); + ffStrbufInitS(&camera->name, (const char*) cap.card); + ffStrbufInit(&camera->vendor); + ffStrbufInitS(&camera->id, (const char*) cap.bus_info); + switch (fmt.fmt.pix.colorspace) { + case V4L2_COLORSPACE_SMPTE170M: + ffStrbufInitStatic(&camera->colorspace, "SMPTE 170M"); + break; + case V4L2_COLORSPACE_SMPTE240M: + ffStrbufInitStatic(&camera->colorspace, "SMPTE 240M"); + break; + case V4L2_COLORSPACE_BT878: + ffStrbufInitStatic(&camera->colorspace, "BT.878"); + break; + case V4L2_COLORSPACE_470_SYSTEM_M: + ffStrbufInitStatic(&camera->colorspace, "NTSC"); + break; + case V4L2_COLORSPACE_470_SYSTEM_BG: + ffStrbufInitStatic(&camera->colorspace, "EBU 3213"); + break; + case V4L2_COLORSPACE_JPEG: + ffStrbufInitStatic(&camera->colorspace, "JPEG"); + break; + case V4L2_COLORSPACE_REC709: + case V4L2_COLORSPACE_SRGB: + ffStrbufInitStatic(&camera->colorspace, "sRGB"); + break; + case 9 /* V4L2_COLORSPACE_OPRGB */: + ffStrbufInitStatic(&camera->colorspace, "Adobe RGB"); + break; + case 10 /* V4L2_COLORSPACE_BT2020 */: + ffStrbufInitStatic(&camera->colorspace, "BT.2020"); + break; + case 11 /* V4L2_COLORSPACE_RAW */: + ffStrbufInitStatic(&camera->colorspace, "RAW"); + break; + case 12 /* V4L2_COLORSPACE_DCI_P3 */: + ffStrbufInitStatic(&camera->colorspace, "DCI-P3"); + break; + default: + ffStrbufInit(&camera->colorspace); + break; + } + camera->width = fmt.fmt.pix.width; + camera->height = fmt.fmt.pix.height; + } + + return NULL; +#else + FF_UNUSED(result); + return "Fastfetch was compiled without "; +#endif +} -- cgit v1.2.3