/*
* Method: get_assoc_entry(id, method, flags, format, value) { ... }
* id: the ID of the index writer.
* method: the lookup method to use (see Gst::Index::LookupMethod).
* flags: flags for the entry (see Gst::Index::AssocFlags).
* format: a Gst::Format object.
* value: the value to find.
*
* Finds the given format/value in the index. If a block is given, it will be
* called as a compare function, passing references to 2 Gst::IndexEntry objects,
* and waiting for a boolean as the return value.
*
* Returns: the entry associated with the value (as a Gst::IndexEntry object), or nil
* if the value is not found.
*/
static VALUE
rb_gst_index_get_assoc_entry (VALUE self, VALUE id, VALUE method, VALUE flags,
VALUE format, VALUE value)
{
GstIndexEntry *index_entry;
if (rb_block_given_p () == Qfalse)
index_entry =
gst_index_get_assoc_entry (RGST_INDEX (self), FIX2INT (id),
RVAL2GENUM (method,
GST_TYPE_INDEX_LOOKUP_METHOD),
RVAL2GFLAGS (flags,
GST_TYPE_ASSOC_FLAGS),
*RGST_FORMAT (format), NUM2ULL (value));
else
index_entry =
gst_index_get_assoc_entry_full (RGST_INDEX (self), FIX2INT (id),
RVAL2GENUM (method,
GST_TYPE_INDEX_LOOKUP_METHOD),
RVAL2GFLAGS (flags,
GST_TYPE_ASSOC_FLAGS),
*RGST_FORMAT (format),
NUM2ULL (value), __compare,
(gpointer) rb_block_proc ());
return index_entry != NULL ? RGST_INDEX_ENTRY_NEW (index_entry)
: Qnil;
}
/*
* Method: add(id, *args)
* id: the ID of the index writer.
* args: additional parameters, see below.
*
* Adds an entry into the index. The type of the entry depends of
* the number and kind of additional parameters.
*
* * For an ID type, args must be a String.
* * For a FORMAT type, args must be a Gst::Format.
* * For an ASSOCIATION type, args must contains an association flag (see Gst::Index::AssocFlags), a Gst::Format and a value for the format.
* * For an OBJECT type, well you must wait, because it is not yet implemented.
*
* Returns: a reference to the newly allocated entry in the index, as a Gst::EntryIndex object.
*/
static VALUE
rb_gst_index_add (int argc, VALUE * argv, VALUE self)
{
GstIndexEntry *index_entry;
VALUE id;
if (argc == 2) {
VALUE var;
rb_scan_args (argc, argv, "2", &id, &var);
index_entry = CLASS2GTYPE (CLASS_OF (var)) == GST_TYPE_FORMAT2
? gst_index_add_format (RGST_INDEX (self), FIX2INT (id),
*RGST_FORMAT (var))
: gst_index_add_id (RGST_INDEX (self), FIX2INT (id),
RVAL2CSTR (var));
} else {
VALUE flags, format, value;
rb_scan_args (argc, argv, "4", &id, &flags, &format, &value);
index_entry =
gst_index_add_association (RGST_INDEX (self), FIX2INT (id),
RVAL2GFLAGS (flags,
GST_TYPE_ASSOC_FLAGS),
*RGST_FORMAT (format), NUM2ULL (value));
}
return index_entry != NULL ? RGST_INDEX_ENTRY_NEW (index_entry)
: Qnil;
}
/*
* Method: ==(format)
* format: a Gst::Format.
*
* Checks if two Gst::Format objects are registered under the
* same nick.
*
* Returns: true on success, false on failure.
*/
static VALUE
rg_operator_is_equal (VALUE self, VALUE other_format)
{
GstFormat *f1, *f2;
const gchar *n1, *n2;
if (NIL_P (other_format))
return Qfalse;
f1 = RGST_FORMAT (self);
f2 = RGST_FORMAT (other_format);
n1 = gst_format_get_details (*f1)->nick;
n2 = gst_format_get_details (*f2)->nick;
return CBOOL2RVAL (strcmp (n1, n2) == 0);
}
/* Method: type_id
* Returns: the type id of this format (see Gst::Format::Type).
*/
static VALUE
rg_type_id (VALUE self)
{
GstFormat *format = RGST_FORMAT (self);
return GENUM2RVAL (*format, GST_TYPE_FORMAT);
}
/* Method: description
* Returns: a longer description of the format.
*/
static VALUE
rg_description (VALUE self)
{
GstFormat *format = RGST_FORMAT (self);
return CSTR2RVAL (gst_format_get_details (*format)->description);
}
/* Method: nick
* Returns: the short nick of the format.
*/
static VALUE
rg_nick (VALUE self)
{
GstFormat *format = RGST_FORMAT (self);
return CSTR2RVAL (gst_format_get_details (*format)->nick);
}