More flexible and extensible syntax for format which allows better usage
of the selection API.
Signed-off-by: Sakari Ailus <sakari.ai...@iki.fi>
---
src/main.c | 17 ++++++++++---
src/options.c | 27 +++++++++++++-------
src/v4l2subdev.c | 70 ++++++++++++++++++++++++++++++++++--------------------
3 files changed, 74 insertions(+), 40 deletions(-)
diff --git a/src/main.c b/src/main.c
index 53964e4..2f57352 100644
--- a/src/main.c
+++ b/src/main.c
@@ -59,15 +59,24 @@ static void v4l2_subdev_print_format(struct media_entity
*entity,
if (ret != 0)
return;
- printf("[%s %ux%u", v4l2_subdev_pixelcode_to_string(format.code),
- format.width, format.height);
+ printf("\t\t[fmt:%s/%ux%u",
+ v4l2_subdev_pixelcode_to_string(format.code),
+ format.width, format.height);
+
+ ret = v4l2_subdev_get_selection(entity, &rect, pad,
+ V4L2_SUBDEV_SEL_TGT_CROP_BOUNDS,
+ which);
+ if (ret == 0)
+ printf("\n\t\t crop.bounds:%u,%u/%ux%u", rect.left, rect.top,
+ rect.width, rect.height);
ret = v4l2_subdev_get_selection(entity, &rect, pad,
V4L2_SUBDEV_SEL_TGT_CROP_ACTUAL,
which);
if (ret == 0)
- printf(" (%u,%u)/%ux%u", rect.left, rect.top,
+ printf("\n\t\t crop:%u,%u/%ux%u", rect.left, rect.top,
rect.width, rect.height);
+
printf("]");
}
@@ -252,7 +261,7 @@ static void media_print_topology_text(struct media_device
*media)
for (j = 0; j < entity->info.pads; j++) {
struct media_pad *pad = &entity->pads[j];
- printf("\tpad%u: %s ", j,
media_pad_type_to_string(pad->flags));
+ printf("\tpad%u: %s\n", j,
media_pad_type_to_string(pad->flags));
if (media_entity_type(entity) ==
MEDIA_ENT_T_V4L2_SUBDEV)
v4l2_subdev_print_format(entity, j,
V4L2_SUBDEV_FORMAT_ACTIVE);
diff --git a/src/options.c b/src/options.c
index 60cf6d5..46f6bef 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");
@@ -52,13 +52,17 @@ 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("\tsize = width, 'x', height ;\n");
- printf("\tcrop = '(', left, ',', top, ')', '/', size ;\n");
- printf("\tframe interval = numerator, '/', denominator ;\n");
+ printf("\tlink = pad, '->', pad, '[', flags, ']' ;\n");
+ printf("\tv4l2 = pad, '[', v4l2-cfgs ']' ;\n");
+ printf("\tv4l2-cfgs = v4l2-cfg [ ',' v4l2-cfg ] ;\n");
+ printf("\tv4l2-cfg = v4l2-mbusfmt | v4l2-crop\n");
+ printf("\t | v4l2 frame interval ;\n");
+ printf("\tv4l2-mbusfmt = 'fmt:', fcc, '/', size ;\n");
+ printf("\tpad = entity, ':', pad number ;\n");
+ printf("\tentity = entity number | ( '\"', entity name,
'\"' ) ;\n");
+ printf("\tsize = width, 'x', height ;\n");
+ printf("\tv4l2-crop = 'crop:(', left, ',', top, ')/', size
;\n");
+ printf("\tv4l2 frame interval = '@', numerator, '/', denominator ;\n");
printf("where the fields are\n");
printf("\tentity number Entity numeric identifier\n");
printf("\tentity name Entity name (string) \n");
@@ -77,7 +81,9 @@ static void usage(const char *argv0, int verbose)
static struct option opts[] = {
{"device", 1, 0, 'd'},
{"entity", 1, 0, 'e'},
+ {"set-v4l2", 1, 0, 'V'},
{"set-format", 1, 0, 'f'},
+ {"get-v4l2", 1, 0, OPT_GET_FORMAT},
{"get-format", 1, 0, OPT_GET_FORMAT},
{"help", 0, 0, 'h'},
{"interactive", 0, 0, 'i'},
@@ -98,7 +104,7 @@ 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:V:f:hil:prv", opts, NULL))
!= -1) {
switch (opt) {
case 'd':
media_opts.devname = optarg;
@@ -108,6 +114,7 @@ int parse_cmdline(int argc, char **argv)
media_opts.entity = optarg;
break;
+ case 'V':
case 'f':
media_opts.formats = optarg;
break;
diff --git a/src/v4l2subdev.c b/src/v4l2subdev.c
index a2ab0c4..6881553 100644
--- a/src/v4l2subdev.c
+++ b/src/v4l2subdev.c
@@ -233,13 +233,13 @@ static int v4l2_subdev_parse_format(struct
v4l2_mbus_framefmt *format,
char *end;
for (; isspace(*p); ++p);
- for (end = (char *)p; !isspace(*end) && *end != '\0'; ++end);
+ for (end = (char *)p; *end != '/' && *end != '\0'; ++end);
code = v4l2_subdev_string_to_pixelcode(p, end - p);
if (code == (enum v4l2_mbus_pixelcode)-1)
return -EINVAL;
- for (p = end; isspace(*p); ++p);
+ p = end + 1;
width = strtoul(p, &end, 10);
if (*end != 'x')
return -EINVAL;
@@ -256,32 +256,32 @@ static int v4l2_subdev_parse_format(struct
v4l2_mbus_framefmt *format,
return 0;
}
-static int v4l2_subdev_parse_crop(
- struct v4l2_rect *crop, const char *p, char **endp)
+static int v4l2_subdev_parse_rectangle(
+ struct v4l2_rect *r, const char *p, char **endp)
{
char *end;
if (*p++ != '(')
return -EINVAL;
- crop->left = strtoul(p, &end, 10);
+ r->left = strtoul(p, &end, 10);
if (*end != ',')
return -EINVAL;
p = end + 1;
- crop->top = strtoul(p, &end, 10);
+ r->top = strtoul(p, &end, 10);
if (*end++ != ')')
return -EINVAL;
if (*end != '/')
return -EINVAL;
p = end + 1;
- crop->width = strtoul(p, &end, 10);
+ r->width = strtoul(p, &end, 10);
if (*end != 'x')
return -EINVAL;
p = end + 1;
- crop->height = strtoul(p, &end, 10);
+ r->height = strtoul(p, &end, 10);
*endp = end;
return 0;
@@ -307,6 +307,17 @@ static int v4l2_subdev_parse_frame_interval(struct
v4l2_fract *interval,
return 0;
}
+static int strhazit(const char *str, const char **p)
+{
+ int len = strlen(str);
+
+ if (strncmp(str, *p, len))
+ return -ENOENT;
+
+ *p += len;
+ return 0;
+}
+
static struct media_pad *v4l2_subdev_parse_pad_format(
struct media_device *media, struct v4l2_mbus_framefmt *format,
struct v4l2_rect *crop, struct v4l2_fract *interval, const char *p,
@@ -326,30 +337,37 @@ static struct media_pad *v4l2_subdev_parse_pad_format(
if (*p++ != '[')
return NULL;
- for (; isspace(*p); ++p);
+ for (;;) {
+ for (; isspace(*p); p++);
- if (isalnum(*p)) {
- ret = v4l2_subdev_parse_format(format, p, &end);
- if (ret < 0)
- return NULL;
+ if (!strhazit("fmt:", &p)) {
+ ret = v4l2_subdev_parse_format(format, p, &end);
+ if (ret < 0)
+ return NULL;
- for (p = end; isspace(*p); p++);
- }
+ p = end;
+ continue;
+ }
- if (*p == '(') {
- ret = v4l2_subdev_parse_crop(crop, p, &end);
- if (ret < 0)
- return NULL;
+ if (!strhazit("crop:", &p) || *p == '(') {
+ ret = v4l2_subdev_parse_rectangle(crop, p, &end);
+ if (ret < 0)
+ return NULL;
- for (p = end; isspace(*p); p++);
- }
+ p = end;
+ continue;
+ }
- if (*p == '@') {
- ret = v4l2_subdev_parse_frame_interval(interval, ++p, &end);
- if (ret < 0)
- return NULL;
+ if (*p == '@') {
+ ret = v4l2_subdev_parse_frame_interval(interval, ++p,
&end);
+ if (ret < 0)
+ return NULL;
+
+ p = end;
+ continue;
+ }
- for (p = end; isspace(*p); p++);
+ break;
}
if (*p != ']')
--
1.7.2.5
--
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