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qtdemux: sanitize tag names

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Sanitize the tag names before turning them into a structure name. We can only
add alphanumeric values as the structure name.
This commit is contained in:
Wim Taymans 2009-03-09 15:20:05 +01:00
parent 36e4c9fc9d
commit af7aaef37a
1 changed files with 14 additions and 3 deletions
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17
gst/qtdemux/qtdemux.c
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@ -4207,6 +4207,8 @@ qtdemux_tag_add_blob (GNode * node, GstQTDemux * demux)
GstBuffer *buf;
gchar *media_type, *style;
GstCaps *caps;
guint i;
guint8 ndata[4];
data = node->data;
len = QT_UINT32 (data);
@ -4223,10 +4225,19 @@ qtdemux_tag_add_blob (GNode * node, GstQTDemux * demux)
else
style = "iso";
/* santize the name for the caps. */
for (i = 0; i < 4; i++) {
guint8 d = data[4 + i];
if (g_ascii_isalnum (d))
ndata[i] = g_ascii_tolower (d);
else
ndata[i] = '_';
}
media_type = g_strdup_printf ("application/x-gst-qt-%c%c%c%c-tag",
(data[4] == 0xa9) ? '_' : g_ascii_tolower (data[4]),
g_ascii_tolower (data[5]), g_ascii_tolower (data[6]),
g_ascii_tolower (data[7]));
ndata[0], ndata[1], ndata[2], ndata[3]);
GST_DEBUG_OBJECT (demux, "media type %s", media_type);
caps = gst_caps_new_simple (media_type, "style", G_TYPE_STRING, style, NULL);
gst_buffer_set_caps (buf, caps);
gst_caps_unref (caps);