From 5aaeaa28e782647843570f01b4661a65ff3aa376 Mon Sep 17 00:00:00 2001
From: Kamil Debski <k.debski@samsung.com>
Date: Tue, 6 Mar 2012 10:33:02 +0100
Subject: v4l-mfc-example: version 0.1

---
 v4l2-mfc-example/args.c | 117 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 117 insertions(+)
 create mode 100644 v4l2-mfc-example/args.c

(limited to 'v4l2-mfc-example/args.c')

diff --git a/v4l2-mfc-example/args.c b/v4l2-mfc-example/args.c
new file mode 100644
index 0000000..119bf22
--- /dev/null
+++ b/v4l2-mfc-example/args.c
@@ -0,0 +1,117 @@
+/*
+ * V4L2 Codec decoding example application
+ * Kamil Debski <k.debski@samsung.com>
+ *
+ * Argument parser
+ *
+ * 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 <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <linux/videodev2.h>
+
+#include "common.h"
+#include "parser.h"
+
+
+void print_usage(char *name)
+{
+	// "d:f:i:m:c:V"
+	printf("Usage:\n");
+	printf("\t./%s\n", name);
+	printf("\t-c <codec> - The codec of the encoded stream\n");
+	printf("\t\t     Available codecs: mpeg4, h264\n");
+	printf("\t-d <device>  - Frame buffer device (e.g. /dev/fb0)\n");
+	printf("\t-f <device> - FIMC device (e.g. /dev/video4)\n");
+	printf("\t-i <file> - Input file name\n");
+	printf("\t-m <device> - MFC device (e.g. /dev/video8)\n");
+	printf("\t-V - synchronise to vsync\n");
+	//printf("\t- <device> - \n");
+	printf("\tp2\n");
+	printf("\n");
+}
+
+void init_to_defaults(struct instance *i)
+{
+	memset(i, 0, sizeof(*i));
+}
+
+int get_codec(char *str)
+{
+	if (strncasecmp("mpeg4", str, 5) == 0) {
+		return V4L2_PIX_FMT_MPEG4;
+	} else if (strncasecmp("h264", str, 5) == 0) {
+		return V4L2_PIX_FMT_H264;
+	}
+	return 0;
+}
+
+int parse_args(struct instance *i, int argc, char **argv)
+{
+	int c;
+
+	init_to_defaults(i);
+
+	while ((c = getopt(argc, argv, "c:d:f:i:m:V")) != -1) {
+		switch (c) {
+		case 'c':
+			i->parser.codec = get_codec(optarg);
+			break;
+		case 'd':
+			i->fb.name = optarg;
+			break;
+		case 'f':
+			i->fimc.name = optarg;
+			break;
+		case 'i':
+			i->in.name = optarg;
+			break;
+		case 'm':
+			i->mfc.name = optarg;
+			break;
+		case 'V':
+			i->fb.double_buf = 1;
+			break;
+		default:
+			err("Bad argument");
+			return -1;
+		}
+	}
+
+	if (!i->in.name || !i->fb.name || !i->fimc.name || !i->mfc.name) {
+		err("The following arguments are required: -d -f -i -m -c");
+		return -1;
+	}
+
+	if (!i->parser.codec) {
+		err("Unknown or not set codec (-c)");
+		return -1;
+	}
+
+	switch (i->parser.codec) {
+	case V4L2_PIX_FMT_MPEG4:
+		i->parser.func = parse_mpeg4_stream;
+		break;
+	case V4L2_PIX_FMT_H264:
+		i->parser.func = parse_h264_stream;
+		break;
+	}
+
+	return 0;
+}
+
-- 
cgit v1.2.3