1 files changed, 111 insertions, 0 deletions
diff --git a/v4l2-mfc-encoder/in_demo.c b/v4l2-mfc-encoder/in_demo.c
new file mode 100644
index 0000000..78d58f0
--- /dev/null
+++ b/v4l2-mfc-encoder/in_demo.c
@@ -0,0 +1,111 @@
+/*
+ * mfc codec encoding example application
+ * Andrzej Hajda <a.hajda@samsung.com>
+ *
+ * Sample input 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 <stdlib.h>
+#include <string.h>
+#include <math.h>
+
+#include "common.h"
+#include "in_demo.h"
+#include "func_dev.h"
+
+#define SQUARE_SIZE 5
+#define MIN(X,Y) ((X) < (Y) ? (X) : (Y))
+
+struct in_demo_priv {
+	int width;
+	int height;
+};
+
+static int in_demo_read(struct io_dev *dev, int nbufs, char **bufs, int *lens)
+{
+	struct in_demo_priv *p;
+	int x, y;
+	int i, j;
+	int size;
+	double rx, ry;
+	int t;
+
+	p = dev->priv;
+
+	if (nbufs != 2)
+		return -1;
+
+	t = dev->io[DIR_OUT].counter;
+
+	size = p->width * p->height;
+	if (size > lens[0] || size > 2 * lens[1]) {
+		err("Size=%d len=%d,%d", size, lens[0], lens[1]);
+		return -1;
+	}
+
+	memset(bufs[0], 0, size);
+	memset(bufs[1], 128, size / 2);
+
+	rx = cos(7 * t / 3.14 / 25 * 100 / p->width);
+	ry = sin(6 * t / 3.14 / 25 * 100 / p->width);
+
+	x = (rx + 1) / 2 * (p->width - 2 * SQUARE_SIZE) + SQUARE_SIZE;
+	y = (ry + 1) / 2 * (p->height - 2 * SQUARE_SIZE) + SQUARE_SIZE;
+
+	for (i = MIN(SQUARE_SIZE, p->width) - 1; i >= 0; --i)
+		for (j = MIN(SQUARE_SIZE, p->height) - 1; j >= 0; --j)
+			bufs[0][x + i + (y + j) * p->width] = 255;
+
+	return size;
+}
+
+static int in_demo_destroy(struct io_dev *dev)
+{
+	free(dev->priv);
+
+	return func_destroy(dev);
+}
+
+static struct io_dev_ops in_demo_ops = { .read = in_demo_read,
+					 .req_bufs = func_req_bufs,
+					 .enq_buf = func_enq_buf,
+					 .deq_buf = func_deq_buf,
+					 .destroy = in_demo_destroy
+					};
+
+struct io_dev *in_demo_create(int width, int height)
+{
+	struct io_dev *dev;
+	struct in_demo_priv *priv;
+
+	dev = malloc(sizeof(*dev));
+	memzero(*dev);
+
+	priv = malloc(sizeof(struct in_demo_priv));
+	priv->width = width;
+	priv->height = height;
+
+	dev->fd = -1;
+	dev->io[DIR_IN].type = IO_NONE;
+	dev->io[DIR_OUT].type = IO_FUNC;
+	dev->ops = &in_demo_ops;
+
+	dev->priv = priv;
+
+	return dev;
+}