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-rw-r--r--test/test_vevent.c125
1 files changed, 125 insertions, 0 deletions
diff --git a/test/test_vevent.c b/test/test_vevent.c
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+++ b/test/test_vevent.c
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+/*
+ * test_vevent.c - Test VIDEO_GET_EVENT and poll(9 for video events
+ *
+ * Copyright (C) 2003 convergence GmbH
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <sys/ioctl.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/poll.h>
+#include <fcntl.h>
+#include <time.h>
+#include <unistd.h>
+
+#include <linux/dvb/video.h>
+
+
+int videoGetSize(int fd, char *arg)
+{
+ video_size_t size;
+
+ if (arg)
+ return -1;
+ if (ioctl(fd, VIDEO_GET_SIZE, &size) == -1){
+ perror("VIDEO_GET_SIZE");
+ return 0;
+ }
+
+ printf("Video Size: %ux%u ", size.w, size.h);
+ switch (size.aspect_ratio) {
+ case VIDEO_FORMAT_4_3:
+ printf("4:3 (%d)\n", size.aspect_ratio);
+ break;
+ case VIDEO_FORMAT_16_9:
+ printf("16:9 (%d)\n", size.aspect_ratio);
+ break;
+ case VIDEO_FORMAT_221_1:
+ printf("2.21:1 (%d)\n", size.aspect_ratio);
+ break;
+ default:
+ printf("unknown aspect ratio (%d)\n", size.aspect_ratio);
+ break;
+ }
+ return 0;
+}
+
+int main(void)
+{
+ int vfd, rc;
+ char *videodev = "/dev/dvb/adapter0/video0";
+ struct pollfd pfd[1];
+ struct video_event event;
+
+ if (getenv("VIDEO"))
+ videodev = getenv("VIDEO");
+
+ printf("using video device '%s'\n", videodev);
+
+ if((vfd = open(videodev, O_RDONLY | O_NONBLOCK)) < 0) {
+ perror("open video device");
+ return 1;
+ }
+
+ videoGetSize(vfd, NULL);
+
+ pfd[0].fd = vfd;
+ pfd[0].events = POLLPRI;
+
+ for (;;) {
+ rc = poll(pfd, 1, -1);
+ if (rc == -1) {
+ perror("poll");
+ return -1;
+ }
+ printf("poll events: %#x\n", pfd[0].revents);
+ if (pfd[0].revents & POLLPRI) {
+ rc = ioctl(vfd, VIDEO_GET_EVENT, &event);
+ if (rc == -1) {
+ perror("VIDEO_GET_EVENT");
+ return -1;
+ }
+ printf("video event %d\n", event.type);
+ if (event.type == VIDEO_EVENT_SIZE_CHANGED) {
+ printf(" VIDEO_EVENT_SIZE_CHANGED %ux%u ",
+ event.u.size.w, event.u.size.h);
+ switch (event.u.size.aspect_ratio) {
+ case VIDEO_FORMAT_4_3:
+ printf("4:3 (%d)\n", event.u.size.aspect_ratio);
+ break;
+ case VIDEO_FORMAT_16_9:
+ printf("16:9 (%d)\n", event.u.size.aspect_ratio);
+ break;
+ case VIDEO_FORMAT_221_1:
+ printf("2.21:1 (%d)\n", event.u.size.aspect_ratio);
+ break;
+ default:
+ printf("unknown aspect ratio (%d)\n",
+ event.u.size.aspect_ratio);
+ break;
+ }
+ }
+ }
+ }
+
+ close(vfd);
+ return 0;
+}
+