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gst/gststructure.c: Remove that ugly if-then thing in the code that converts between strings and types.

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Original commit message from CVS:
* gst/gststructure.c: (gst_structure_get_abbrs),
(gst_structure_from_abbr), (gst_structure_to_abbr):
Remove that ugly if-then thing in the code that converts
between strings and types.
This commit is contained in:
Wim Taymans 2004-11-02 12:39:27 +00:00
parent 3207eb2f42
commit 824c331e32
2 changed files with 72 additions and 47 deletions
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7
ChangeLog
View file

@ -1,3 +1,10 @@
2004-11-02 Wim Taymans <wim@fluendo.com>
* gst/gststructure.c: (gst_structure_get_abbrs),
(gst_structure_from_abbr), (gst_structure_to_abbr):
Remove that ugly if-then thing in the code that converts
between strings and types.
2004-11-02 Wim Taymans <wim@fluendo.com>
* gst/gstscheduler.c: (gst_scheduler_add_element),

106
gst/gststructure.c
View file

@ -987,50 +987,75 @@ typedef struct _GstStructureAbbreviation
}
GstStructureAbbreviation;
static GstStructureAbbreviation gst_structure_abbrs[] = {
{"int", G_TYPE_INT},
{"i", G_TYPE_INT},
{"float", G_TYPE_FLOAT},
{"f", G_TYPE_FLOAT},
{"double", G_TYPE_DOUBLE},
{"d", G_TYPE_DOUBLE},
/* these are implemented with strcmp below */
//{ "buffer", GST_TYPE_BUFFER },
//{ "fourcc", GST_TYPE_FOURCC },
//{ "4", GST_TYPE_FOURCC },
//{ "fraction", GST_TYPE_FRACTION },
{"boolean", G_TYPE_BOOLEAN},
{"bool", G_TYPE_BOOLEAN},
{"b", G_TYPE_BOOLEAN},
{"string", G_TYPE_STRING},
{"str", G_TYPE_STRING},
static GstStructureAbbreviation *
gst_structure_get_abbrs (gint * n_abbrs)
{
static GstStructureAbbreviation *abbrs = NULL;
static gint num = 0;
if (abbrs == NULL) {
/* dynamically generate the array */
GstStructureAbbreviation dyn_abbrs[] = {
{"int", G_TYPE_INT}
,
{"i", G_TYPE_INT}
,
{"float", G_TYPE_FLOAT}
,
{"f", G_TYPE_FLOAT}
,
{"double", G_TYPE_DOUBLE}
,
{"d", G_TYPE_DOUBLE}
,
{"buffer", GST_TYPE_BUFFER}
,
{"fourcc", GST_TYPE_FOURCC}
,
{"4", GST_TYPE_FOURCC}
,
{"fraction", GST_TYPE_FRACTION}
,
{"boolean", G_TYPE_BOOLEAN}
,
{"bool", G_TYPE_BOOLEAN}
,
{"b", G_TYPE_BOOLEAN}
,
{"string", G_TYPE_STRING}
,
{"str", G_TYPE_STRING}
,
{"s", G_TYPE_STRING}
};
num = G_N_ELEMENTS (dyn_abbrs);
/* permanently allocate and copy the array now */
abbrs = g_new0 (GstStructureAbbreviation, num);
memcpy (abbrs, dyn_abbrs, sizeof (GstStructureAbbreviation) * num);
}
*n_abbrs = num;
return abbrs;
}
static GType
gst_structure_from_abbr (const char *type_name)
{
int i;
GstStructureAbbreviation *abbrs;
gint n_abbrs;
g_return_val_if_fail (type_name != NULL, G_TYPE_INVALID);
for (i = 0; i < G_N_ELEMENTS (gst_structure_abbrs); i++) {
if (strcmp (type_name, gst_structure_abbrs[i].type_name) == 0) {
return gst_structure_abbrs[i].type;
abbrs = gst_structure_get_abbrs (&n_abbrs);
for (i = 0; i < n_abbrs; i++) {
if (strcmp (type_name, abbrs[i].type_name) == 0) {
return abbrs[i].type;
}
}
/* FIXME shouldn't be a special case */
if (strcmp (type_name, "fourcc") == 0 || strcmp (type_name, "4") == 0) {
return GST_TYPE_FOURCC;
}
if (strcmp (type_name, "buffer") == 0) {
return GST_TYPE_BUFFER;
}
if (strcmp (type_name, "fraction") == 0) {
return GST_TYPE_FRACTION;
}
/* this is the fallback */
return g_type_from_name (type_name);
}
@ -1038,24 +1063,17 @@ static const char *
gst_structure_to_abbr (GType type)
{
int i;
GstStructureAbbreviation *abbrs;
gint n_abbrs;
g_return_val_if_fail (type != G_TYPE_INVALID, NULL);
for (i = 0; i < G_N_ELEMENTS (gst_structure_abbrs); i++) {
if (type == gst_structure_abbrs[i].type) {
return gst_structure_abbrs[i].type_name;
}
}
abbrs = gst_structure_get_abbrs (&n_abbrs);
/* FIXME shouldn't be a special case */
if (type == GST_TYPE_FOURCC) {
return "fourcc";
for (i = 0; i < n_abbrs; i++) {
if (type == abbrs[i].type) {
return abbrs[i].type_name;
}
if (type == GST_TYPE_BUFFER) {
return "buffer";
}
if (type == GST_TYPE_FRACTION) {
return "fraction";
}
return g_type_name (type);