mirror of
https://github.com/fastfetch-cli/fastfetch.git
synced 2026-09-13 02:14:37 +02:00
李通洲
62 lines
2.4 KiB
C
62 lines
2.4 KiB
C
#include "camera.h"
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#include "common/io/io.h"
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#include <unistd.h>
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#include <fcntl.h>
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#include <sys/ioctl.h>
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#if __has_include(<linux/videodev2.h>)
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#include <linux/videodev2.h>
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#endif
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const char* ffDetectCamera(FFlist* result)
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{
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#if __has_include(<linux/videodev2.h>)
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char path[] = "/dev/videoN";
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for (uint32_t i = 0; i <= 9; ++i)
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{
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path[sizeof(path) - 2] = (char) (i + '0');
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FF_AUTO_CLOSE_FD int fd = open(path, O_RDONLY);
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if (fd < 0)
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break;
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struct v4l2_capability cap = {};
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if (ioctl(fd, VIDIOC_QUERYCAP, &cap) < 0 || !(cap.capabilities & V4L2_CAP_VIDEO_CAPTURE))
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continue;
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struct v4l2_format fmt = { .type = V4L2_BUF_TYPE_VIDEO_CAPTURE };
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if (ioctl(fd, VIDIOC_G_FMT, &fmt) < 0)
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continue;
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FFCameraResult* camera = (FFCameraResult*) ffListAdd(result);
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ffStrbufInitS(&camera->name, (const char*) cap.card);
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ffStrbufInit(&camera->vendor);
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ffStrbufInitS(&camera->id, (const char*) cap.bus_info);
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switch (fmt.fmt.pix.colorspace)
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{
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case V4L2_COLORSPACE_SMPTE170M: ffStrbufInitStatic(&camera->colorspace, "SMPTE 170M"); break;
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case V4L2_COLORSPACE_SMPTE240M: ffStrbufInitStatic(&camera->colorspace, "SMPTE 240M"); break;
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case V4L2_COLORSPACE_BT878: ffStrbufInitStatic(&camera->colorspace, "BT.808"); break;
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case V4L2_COLORSPACE_470_SYSTEM_M: ffStrbufInitStatic(&camera->colorspace, "NTSC"); break;
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case V4L2_COLORSPACE_470_SYSTEM_BG: ffStrbufInitStatic(&camera->colorspace, "EBU 3213"); break;
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case V4L2_COLORSPACE_JPEG: ffStrbufInitStatic(&camera->colorspace, "JPEG"); break;
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case V4L2_COLORSPACE_REC709:
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case V4L2_COLORSPACE_SRGB: ffStrbufInitStatic(&camera->colorspace, "sRGB"); break;
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case V4L2_COLORSPACE_OPRGB: ffStrbufInitStatic(&camera->colorspace, "Adobe RGB"); break;
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case V4L2_COLORSPACE_BT2020: ffStrbufInitStatic(&camera->colorspace, "BT.2020"); break;
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case V4L2_COLORSPACE_RAW: ffStrbufInitStatic(&camera->colorspace, "RAW"); break;
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case V4L2_COLORSPACE_DCI_P3: ffStrbufInitStatic(&camera->colorspace, "DCI-P3"); break;
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default: ffStrbufInit(&camera->colorspace); break;
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}
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camera->width = fmt.fmt.pix.width;
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camera->height = fmt.fmt.pix.height;
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}
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return NULL;
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#else
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FF_UNUSED(result);
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return "Fastfetch was compiled without <linux/videodev2.h>";
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#endif
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}
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