libcamera/vivid.git - libcamera pipeline handler for VIVID

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author	David Plowman <david.plowman@raspberrypi.com>	2021-12-10 14:44:20 +0000
committer	Laurent Pinchart <laurent.pinchart@ideasonboard.com>	2021-12-13 11:29:01 +0200
commit	3e520cadf18ac53eed0fc98fb1d58368ef80a61d (patch)
tree	8a7bac56c6490f725c23a35d6d1c8827c0659b72 /test/pipeline
parent	e86aed6166449189eaf1b7e9d734236797e3d0c3 (diff)

libcamera: video_device: Support passing ColorSpaces to V4L2 video devices

The ColorSpace from the StreamConfiguration is now handled appropriately in the V4L2VideoDevice. Signed-off-by: David Plowman <david.plowman@raspberrypi.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

Diffstat (limited to 'test/pipeline')

0 files changed, 0 insertions, 0 deletions

/* SPDX-License-Identifier: LGPL-2.1-or-later */ /* * Copyright (C) 2019, Google Inc. * * device_enumerator_sysfs.cpp - sysfs-based device enumerator */ #include "device_enumerator_sysfs.h" #include <dirent.h> #include <fcntl.h> #include <fstream> #include <stdlib.h> #include <string.h> #include <sys/ioctl.h> #include <sys/stat.h> #include <sys/types.h> #include <unistd.h> #include "log.h" namespace libcamera { LOG_DECLARE_CATEGORY(DeviceEnumerator) int DeviceEnumeratorSysfs::init() { return 0; } int DeviceEnumeratorSysfs::enumerate() { struct dirent *ent; DIR *dir; static const char * const sysfs_dirs[] = { "/sys/subsystem/media/devices", "/sys/bus/media/devices", "/sys/class/media/devices", }; for (const char *dirname : sysfs_dirs) { dir = opendir(dirname); if (dir) break; } if (!dir) { LOG(DeviceEnumerator, Error) << "No valid sysfs media device directory"; return -ENODEV; } while ((ent = readdir(dir)) != nullptr) { if (strncmp(ent->d_name, "media", 5)) continue; char *end; unsigned int idx = strtoul(ent->d_name + 5, &end, 10); if (*end != '\0') continue; std::string devnode = "/dev/media" + std::to_string(idx); /* Verify that the device node exists. */ struct stat devstat; if (stat(devnode.c_str(), &devstat) < 0) { LOG(DeviceEnumerator, Warning) << "Device node /dev/media" << idx << " should exist but doesn't"; continue; } addDevice(devnode); } closedir(dir); return 0; } std::string DeviceEnumeratorSysfs::lookupDeviceNode(int major, int minor) { std::string deviceNode; std::string line; std::ifstream ueventFile; ueventFile.open("/sys/dev/char/" + std::to_string(major) + ":" + std::to_string(minor) + "/uevent"); if (!ueventFile) return std::string(); while (ueventFile >> line) { if (line.find("DEVNAME=") == 0) { deviceNode = "/dev/" + line.substr(strlen("DEVNAME=")); break; } } ueventFile.close(); return deviceNode; } } /* namespace libcamera */


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