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authorSakari Ailus <sakari.ailus@iki.fi>2012-05-23 01:30:57 +0300
committerLaurent Pinchart <laurent.pinchart@ideasonboard.com>2012-05-25 12:19:29 +0200
commit79fc1080b905dc3d61a93c31f68acaf3b4985c57 (patch)
tree5736f16181fb81ed10604485c54fd6ac644ba1ec /src/options.c
parent4aa40df9cfaf6f94b9207023d8ac9250847d2150 (diff)
New, more flexible syntax for format
More flexible and extensible syntax for format which allows better usage of the selection API. Continue supporting the old syntax but remove the documentation for it. It was not supported in an official release and its use is thus deprecated. Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Diffstat (limited to 'src/options.c')
-rw-r--r--src/options.c36
1 files changed, 25 insertions, 11 deletions
diff --git a/src/options.c b/src/options.c
index d71d11b..f367daf 100644
--- a/src/options.c
+++ b/src/options.c
@@ -37,8 +37,8 @@ static void usage(const char *argv0, int verbose)
printf("%s [options] device\n", argv0);
printf("-d, --device dev Media device name (default: %s)\n", MEDIA_DEVNAME_DEFAULT);
printf("-e, --entity name Print the device name associated with the given entity\n");
- printf("-f, --set-format Comma-separated list of formats to setup\n");
- printf(" --get-format pad Print the active format on a given pad\n");
+ printf("-V, --set-v4l2 v4l2 Comma-separated list of formats to setup\n");
+ printf(" --get-v4l2 pad Print the active format on a given pad\n");
printf("-h, --help Show verbose help and exit\n");
printf("-i, --interactive Modify links interactively\n");
printf("-l, --links Comma-separated list of links descriptors to setup\n");
@@ -53,16 +53,22 @@ static void usage(const char *argv0, int verbose)
printf("\n");
printf("Links and formats are defined as\n");
printf("\tlink = pad '->' pad '[' flags ']' ;\n");
- printf("\tformat = pad '[' fcc ' ' size [ ' ' crop ] [ ' ' '@' frame interval ] ']' ;\n");
- printf("\tpad = entity ':' pad number ;\n");
- printf("\tentity = entity number | ( '\"' entity name '\"' ) ;\n");
+ printf("\tpad = entity ':' pad-number ;\n");
+ printf("\tentity = entity-number | ( '\"' entity-name '\"' ) ;\n");
+ printf("\n");
+ printf("\tv4l2 = pad '[' v4l2-properties ']' ;\n");
+ printf("\tv4l2-properties = v4l2-property { ',' v4l2-property } ;\n");
+ printf("\tv4l2-property = v4l2-mbusfmt | v4l2-crop | v4l2-interval ;\n");
+ printf("\tv4l2-mbusfmt = 'fmt:' fcc '/' size ;\n");
+ printf("\tv4l2-crop = 'crop:' '(' left ',' top ')' '/' size ;\n");
+ printf("\tv4l2-interval = '@' numerator '/' denominator ;\n");
+ printf("\n");
printf("\tsize = width 'x' height ;\n");
- printf("\tcrop = '(' left ',' top ')' '/' size ;\n");
- printf("\tframe interval = numerator '/' denominator ;\n");
+ printf("\n");
printf("where the fields are\n");
- printf("\tentity number Entity numeric identifier\n");
- printf("\tentity name Entity name (string) \n");
- printf("\tpad number Pad numeric identifier\n");
+ printf("\tentity-number Entity numeric identifier\n");
+ printf("\tentity-name Entity name (string) \n");
+ printf("\tpad-number Pad numeric identifier\n");
printf("\tflags Link flags (0: inactive, 1: active)\n");
printf("\tfcc Format FourCC\n");
printf("\twidth Image width in pixels\n");
@@ -78,7 +84,9 @@ static struct option opts[] = {
{"device", 1, 0, 'd'},
{"entity", 1, 0, 'e'},
{"set-format", 1, 0, 'f'},
+ {"set-v4l2", 1, 0, 'V'},
{"get-format", 1, 0, OPT_GET_FORMAT},
+ {"get-v4l2", 1, 0, OPT_GET_FORMAT},
{"help", 0, 0, 'h'},
{"interactive", 0, 0, 'i'},
{"links", 1, 0, 'l'},
@@ -98,7 +106,7 @@ int parse_cmdline(int argc, char **argv)
}
/* parse options */
- while ((opt = getopt_long(argc, argv, "d:e:f:hil:prv", opts, NULL)) != -1) {
+ while ((opt = getopt_long(argc, argv, "d:e:f:hil:prvV:", opts, NULL)) != -1) {
switch (opt) {
case 'd':
media_opts.devname = optarg;
@@ -108,7 +116,13 @@ int parse_cmdline(int argc, char **argv)
media_opts.entity = optarg;
break;
+ /* 'f' is supported for backward compatibility reasons and will
+ * be removed later.
+ */
case 'f':
+ fprintf(stderr, "Warning: the -f option is deprecated "
+ "and has been replaced by -V.\n");
+ case 'V':
media_opts.formats = optarg;
break;