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-rw-r--r--src/py/libcamera/py_main.cpp17
1 files changed, 15 insertions, 2 deletions
diff --git a/src/py/libcamera/py_main.cpp b/src/py/libcamera/py_main.cpp
index 09b6f9db..441a70ab 100644
--- a/src/py/libcamera/py_main.cpp
+++ b/src/py/libcamera/py_main.cpp
@@ -7,6 +7,7 @@
#include "py_main.h"
+#include <limits>
#include <memory>
#include <stdexcept>
#include <string>
@@ -401,10 +402,22 @@ PYBIND11_MODULE(_libcamera, m)
.def_property_readonly("name", &ControlId::name)
.def_property_readonly("vendor", &ControlId::vendor)
.def_property_readonly("type", &ControlId::type)
+ .def_property_readonly("isArray", &ControlId::isArray)
+ .def_property_readonly("size", &ControlId::size)
.def("__str__", [](const ControlId &self) { return self.name(); })
.def("__repr__", [](const ControlId &self) {
- return py::str("libcamera.ControlId({}, {}.{}, {})")
- .format(self.id(), self.vendor(), self.name(), self.type());
+ std::string sizeStr = "";
+ if (self.isArray()) {
+ sizeStr = "[";
+ size_t size = self.size();
+ if (size == std::numeric_limits<size_t>::max())
+ sizeStr += "n";
+ else
+ sizeStr += std::to_string(size);
+ sizeStr += "]";
+ }
+ return py::str("libcamera.ControlId({}, {}.{}{}, {})")
+ .format(self.id(), self.vendor(), self.name(), sizeStr, self.type());
})
.def("enumerators", &ControlId::enumerators);
generated by cgit v1.2.1 (git 2.18.0) at 2025-04-25 13:41:09 +0000
ass="hl slc"># A simple capture example showing: # - How to setup the camera # - Capture certain number of frames in a blocking manner # - How to stop the camera # # This simple example is, in many ways, too simple. The purpose of the example # is to introduce the concepts. A more realistic example is given in # simple-continuous-capture.py. import argparse import libcamera as libcam import selectors import sys # Number of frames to capture TOTAL_FRAMES = 30 def main(): parser = argparse.ArgumentParser() parser.add_argument('-c', '--camera', type=str, default='1', help='Camera index number (starting from 1) or part of the name') parser.add_argument('-f', '--format', type=str, help='Pixel format') parser.add_argument('-s', '--size', type=str, help='Size ("WxH")') args = parser.parse_args() cm = libcam.CameraManager.singleton() try: if args.camera.isnumeric(): cam_idx = int(args.camera) cam = next((cam for i, cam in enumerate(cm.cameras) if i + 1 == cam_idx)) else: cam = next((cam for cam in cm.cameras if args.camera in cam.id)) except Exception: print(f'Failed to find camera "{args.camera}"') return -1 # Acquire the camera for our use ret = cam.acquire() assert ret == 0 # Configure the camera cam_config = cam.generate_configuration([libcam.StreamRole.Viewfinder]) stream_config = cam_config.at(0) if args.format: fmt = libcam.PixelFormat(args.format) stream_config.pixel_format = fmt if args.size: w, h = [int(v) for v in args.size.split('x')] stream_config.size = libcam.Size(w, h) ret = cam.configure(cam_config) assert ret == 0 print(f'Capturing {TOTAL_FRAMES} frames with {stream_config}') stream = stream_config.stream # Allocate the buffers for capture allocator = libcam.FrameBufferAllocator(cam) ret = allocator.allocate(stream) assert ret > 0 num_bufs = len(allocator.buffers(stream)) # Create the requests and assign a buffer for each request reqs = [] for i in range(num_bufs): # Use the buffer index as the cookie req = cam.create_request(i) buffer = allocator.buffers(stream)[i] ret = req.add_buffer(stream, buffer) assert ret == 0 reqs.append(req) # Start the camera ret = cam.start() assert ret == 0 # frames_queued and frames_done track the number of frames queued and done frames_queued = 0 frames_done = 0 # Queue the requests to the camera for req in reqs: ret = cam.queue_request(req) assert ret == 0 frames_queued += 1 # The main loop. Wait for the queued Requests to complete, process them, # and re-queue them again. sel = selectors.DefaultSelector() sel.register(cm.event_fd, selectors.EVENT_READ) while frames_done < TOTAL_FRAMES: # cm.get_ready_requests() does not block, so we use a Selector to wait # for a camera event. Here we should almost always get a single # Request, but in some cases there could be multiple or none. events = sel.select() if not events: continue reqs = cm.get_ready_requests() for req in reqs: frames_done += 1 buffers = req.buffers # A ready Request could contain multiple buffers if multiple streams # were being used. Here we know we only have a single stream, # and we use next(iter()) to get the first and only buffer. assert len(buffers) == 1 stream, fb = next(iter(buffers.items())) # Here we could process the received buffer. In this example we only # print a few details below. meta = fb.metadata print("seq {:3}, bytes {}, frames queued/done {:3}/{:<3}" .format(meta.sequence, '/'.join([str(p.bytes_used) for p in meta.planes]), frames_queued, frames_done)) # If we want to capture more frames we need to queue more Requests. # We could create a totally new Request, but it is more efficient # to reuse the existing one that we just received. if frames_queued < TOTAL_FRAMES: req.reuse() cam.queue_request(req) frames_queued += 1 # Stop the camera ret = cam.stop()