From 8b8182da6e16dfd0820ef2418c1bb66d4bcc8079 Mon Sep 17 00:00:00 2001 From: Andrzej Hajda Date: Mon, 2 Jul 2012 10:50:47 +0200 Subject: v4l-mfc-encoder: version 0.1 Signed-off-by: Andrzej Hajda Signed-off-by: Kamil Debski --- v4l2-mfc-encoder/in_camera.c | 83 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 83 insertions(+) create mode 100644 v4l2-mfc-encoder/in_camera.c (limited to 'v4l2-mfc-encoder/in_camera.c') diff --git a/v4l2-mfc-encoder/in_camera.c b/v4l2-mfc-encoder/in_camera.c new file mode 100644 index 0000000..2ad840b --- /dev/null +++ b/v4l2-mfc-encoder/in_camera.c @@ -0,0 +1,83 @@ +/* + * mfc codec encoding example application + * Andrzej Hajda + * + * Input camera device. + * + * Copyright 2012 Samsung Electronics Co., Ltd. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + */ + +#include +#include +#include +#include +#include + +#include "common.h" +#include "in_demo.h" +#include "v4l_dev.h" + +#define SQUARE_SIZE 5 + +static struct io_dev_ops in_camera_ops = { .req_bufs = v4l_req_bufs, + .enq_buf = v4l_enq_buf, + .deq_buf = v4l_deq_buf, + .destroy = v4l_destroy + }; + +int in_camera_set_autofocus(struct io_dev *dev, int val) +{ + struct v4l2_ext_control ctrl; + struct v4l2_ext_controls ctrls; + int ret; + + ctrl.id = V4L2_CID_FOCUS_AUTO; + ctrl.value = val; + + ctrls.ctrl_class = V4L2_CID_CAMERA_CLASS; + ctrls.count = 1; + ctrls.controls = &ctrl; + + ret = ioctl(dev->fd, VIDIOC_S_EXT_CTRLS, &ctrls); + if (ret < 0) + err("Cannot set autofocus on %d", dev->fd); + + return ret; +} + +struct io_dev *in_camera_create(char const *name) +{ + struct io_dev *dev; + + dev = malloc(sizeof(*dev)); + memzero(*dev); + + dev->fd = open(name, O_RDWR, 0); + if (dev->fd < 0) { + free(dev); + err("Cannot open camera(%s) device", name); + return NULL; + } + + dev->io[0].type = IO_NONE; + dev->io[1].type = IO_USERPTR; + + dev->ops = &in_camera_ops; + + in_camera_set_autofocus(dev, 1); + + return dev; +} -- cgit v1.2.3