Imported Upstream version 1.1.0upstream/1.1.0

1 files changed, 103 insertions, 0 deletions

diff --git a/test/test_stillimage.c b/test/test_stillimage.c
new file mode 100644
index 0000000..264b2c4
--- /dev/null
+++ b/test/test_stillimage.c
@@ -0,0 +1,103 @@
+/* display single iframes as stillimages
+ * iframes can be created with the 'convert' tool from imagemagick
+ * and mpeg2encode from ftp.mpeg.org, and must have a supported
+ * size, e.g. 702x576:
+ *   $ convert -sample 702x576\! test.jpg test.mpg
+ *
+ * or more advanced using netpbm and mpeg2enc (not mpeg2encode) :
+ *   $ cat image.jpg | jpegtopnm | pnmscale -xsize=704 -ysize=576 |\
+ *      ppmntsc --pal | ppmtoy4m  -F 25:1 -A 4:3 |\
+ *      mpeg2enc -f 7 -T 90 -F 3 -np -a 2 -o "image.mpg"
+ *
+ */
+
+#include <sys/ioctl.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <time.h>
+#include <unistd.h>
+
+#include <linux/dvb/video.h>
+
+
+static const char *usage_string = "\n\t"
+	"usage: %s <still.mpg> [still.mpg ...]\n"
+	"\n\t"
+	"to use another videodev than the first, set the environment variable VIDEODEV\n\t"
+	"e.g.[user@linux]$ export VIDEODEV=\"/dev/dvb/adapter1/video1\".\n\t"
+	"to display the image <n> seconds, instead of 10, set the variable SSTIME\n\t"
+	"e.g. [user@linux]$ export SSTIME=\"60\" to display the still for 1 minute.\n\t"
+	"this options can be set in the same line as the %s command:\n\t"
+	"e.g. $ SSTIME=25 VIDEODEV=/dev/dvb/adapter1/video1 %s ...\n";
+
+
+int main (int argc, char **argv)
+{
+	int fd;
+	int filefd;
+	struct stat st;
+	struct video_still_picture sp;
+	char *videodev = "/dev/dvb/adapter0/video0";
+	char *env_sstime;
+	int i = 1;
+	int tsec = 10;
+
+	if (argc < 2) {
+		fprintf (stderr, usage_string, argv[0],argv[0],argv[0]);
+		return -1;
+	}
+
+	if (getenv ("VIDEODEV"))
+		videodev = getenv("VIDEODEV");
+
+	if (getenv ("SSTIME")) {
+		env_sstime = getenv("SSTIME");
+		tsec = atoi(env_sstime);
+	}
+
+	if ((fd = open(videodev, O_RDWR)) < 0) {
+		perror(videodev);
+		return -1;
+	}
+
+next_pic:
+	printf("I-frame     : '%s'\n", argv[i]);
+	if ((filefd = open(argv[i], O_RDONLY)) < 0) {
+		perror(argv[i]);
+		return -1;
+	}
+
+	fstat(filefd, &st);
+
+	sp.iFrame = (char *) malloc (st.st_size);
+	sp.size = st.st_size;
+	printf("I-frame size: %d\n", sp.size);
+
+	if (!sp.iFrame) {
+		fprintf (stderr, "No memory for I-Frame\n");
+		return -1;
+	}
+
+	printf ("read: %d bytes\n", read(filefd, sp.iFrame, sp.size));
+	close(filefd);
+
+	if ((ioctl(fd, VIDEO_STILLPICTURE, &sp) < 0)) {
+		perror("ioctl VIDEO_STILLPICTURE");
+		return -1;
+	}
+	free(sp.iFrame);
+
+	printf("Display image %d seconds ...\n",tsec);
+	sleep(tsec);
+	printf("Done.\n");
+	if (argc > ++i)
+		goto next_pic;
+
+	return 0;
+}
+
+