Function xs_camera_loop

modules/io/imagein/camera/lin/camera.c:175–254

}

static gpointer xs_camera_loop(gpointer it)
{
	Camera camera = it;
	int fd = camera->fd;
	enum v4l2_buf_type type;
	CameraBuffer buffer;
 	struct v4l2_buffer buf;
	fd_set fds;
    struct timeval tv;
	
	type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
	if (-1 == xioctl(fd, VIDIOC_STREAMON, &type))
		fprintf(stderr, "VIDIOC_STREAMON: %s\n", strerror(errno));
	
	for (;;) {
		g_mutex_lock(&(camera->threadMutex));
		while ((camera->threadBuffer == NULL) && (camera->destructing == 0))
			g_cond_wait(&(camera->threadCondition), &(camera->threadMutex));
		buffer = xs_camera_dequeueBuffer(&(camera->threadBuffer));
		g_mutex_unlock(&(camera->threadMutex));
		if (camera->destructing)
			break;
			
		memset(&buf, 0, sizeof(buf));
		buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
		buf.memory = V4L2_MEMORY_MMAP;
		buf.index = buffer->index;
		if (-1 == xioctl(fd, VIDIOC_QBUF, &buf))
			fprintf(stderr, "%s\n", strerror(errno));

	again:	
		FD_ZERO(&fds);
		FD_SET(fd, &fds);
		tv.tv_sec = 2;
		tv.tv_usec = 0;
		int result = select(fd + 1, &fds, NULL, NULL, &tv);
		if (-1 == result) {
			if (EINTR == errno)
				goto again;
 			fprintf(stderr, "select: %s\n", strerror(errno));
			break;
		}
		else if (0 == result) {
 			fprintf(stderr, "select: timeout\n");
			break;
		}
		memset(&buf, 0, sizeof(buf));
		buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
		buf.memory = V4L2_MEMORY_MMAP;
		if (-1 == xioctl(fd, VIDIOC_DQBUF, &buf)) {
        	if (EAGAIN == errno)
				goto again;
 			fprintf(stderr, "VIDIOC_DQBUF: %s\n", strerror(errno));
          	break;
        }
        
        buffer = &(camera->queueBuffers[buf.index]);
        if (camera->yuvToRGB)