jordan/camera-streamer
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Open default camera of a given type

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This commit is contained in:
Kamil Trzcinski
2022-07-12 21:59:02 +02:00
parent 1857cd8d77
commit 4e641dea1e
3 changed files with 37 additions and 16 deletions
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8
device/camera/camera_input.c
View File

@ -9,7 +9,13 @@
static int camera_configure_input_v4l2(camera_t *camera)
{
camera->camera = device_v4l2_open(camera->name, camera->options.path);
const char *path = camera->options.path;
if (!*path) {
path = "/dev/video0";
}
camera->camera = device_v4l2_open(camera->name, path);
if (!camera->camera) {
LOG_INFO(camera, "Listing available v4l2 devices:");
system("v4l2-ctl --list-devices");

39
device/libcamera/device.cc
View File

@ -58,6 +58,19 @@ void libcamera_device_dump_options(device_t *dev, FILE *stream)
fprintf(stream, "\n");
}
void libcamera_print_cameras(device_t *dev)
{
if (dev->libcamera->camera_manager->cameras().size()) {
LOG_INFO(dev, "Available cameras (%zu)", dev->libcamera->camera_manager->cameras().size());
for (auto const &camera : dev->libcamera->camera_manager->cameras()) {
LOG_INFO(dev, "- %s", camera->id().c_str());
}
} else {
LOG_INFO(dev, "No available cameras");
}
}
int libcamera_device_open(device_t *dev)
{
dev->libcamera = new device_libcamera_t{};
@ -68,25 +81,27 @@ int libcamera_device_open(device_t *dev)
LOG_ERROR(dev, "Cannot start camera_manager.");
}
dev->libcamera->camera = dev->libcamera->camera_manager->get(dev->path);
if (!dev->libcamera->camera) {
if (dev->libcamera->camera_manager->cameras().size()) {
LOG_INFO(dev, "Available cameras (%zu)", dev->libcamera->camera_manager->cameras().size());
for (auto const &camera : dev->libcamera->camera_manager->cameras()) {
LOG_INFO(dev, "- %s", camera->id().c_str());
}
} else {
LOG_INFO(dev, "No available cameras");
if (strlen(dev->path) == 0) {
if (dev->libcamera->camera_manager->cameras().size() != 1) {
libcamera_print_cameras(dev);
LOG_ERROR(dev, "Too many cameras was found. Cannot select default.");
}
dev->libcamera->camera = dev->libcamera->camera_manager->cameras().front();
} else {
dev->libcamera->camera = dev->libcamera->camera_manager->get(dev->path);
}
if (!dev->libcamera->camera) {
libcamera_print_cameras(dev);
LOG_ERROR(dev, "Camera `%s` was not found.", dev->path);
}
if (dev->libcamera->camera->acquire()) {
LOG_ERROR(dev, "Failed to acquire `%s` camera.", dev->path);
LOG_ERROR(dev, "Failed to acquire `%s` camera.", dev->libcamera->camera->id().c_str());
}
LOG_INFO(dev, "Device path=%s opened", dev->path);
LOG_INFO(dev, "Device path=%s opened", dev->libcamera->camera->id().c_str());
return 0;
error: