Method _read_frame

modules/camera/camera_feed_linux.cpp:196–215

}

void CameraFeedLinux::_read_frame() {
	struct v4l2_buffer buffer;
	memset(&buffer, 0, sizeof(buffer));
	buffer.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
	buffer.memory = V4L2_MEMORY_MMAP;

	if (ioctl(file_descriptor, VIDIOC_DQBUF, &buffer) == -1) {
		if (errno != EAGAIN) {
			print_error(vformat("ioctl(VIDIOC_DQBUF) error: %d.", errno));
			exit_flag.set();
		}
		return;
	}

	buffer_decoder->decode(buffers[buffer.index]);

	if (ioctl(file_descriptor, VIDIOC_QBUF, &buffer) == -1) {
		print_error(vformat("ioctl(VIDIOC_QBUF) error: %d.", errno));
	}
}

void CameraFeedLinux::_stop_capturing() {
	enum v4l2_buf_type type;