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gst/typefind/gsttypefindfunctions.c: Fix SMIL typefinding, make xml_check_first_element() more useful.

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Original commit message from CVS:
* gst/typefind/gsttypefindfunctions.c: (utf8_type_find),
(xml_check_first_element), (xml_type_find), (smil_type_find):
Fix SMIL typefinding, make xml_check_first_element() more
useful.
This commit is contained in:
Tim-Philipp Müller 2006-07-06 13:12:02 +00:00
parent f1318291ed
commit 5cec49ed90
2 changed files with 32 additions and 14 deletions
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7
ChangeLog
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@ -1,3 +1,10 @@
2006-07-06 Tim-Philipp Müller <tim at centricular dot net>
* gst/typefind/gsttypefindfunctions.c: (utf8_type_find),
(xml_check_first_element), (xml_type_find), (smil_type_find):
Fix SMIL typefinding, make xml_check_first_element() more
useful.
2006-07-06 Tim-Philipp Müller <tim at centricular dot net>
* gst/playback/gstplaybasebin.c: (gst_play_base_bin_init),

39
gst/typefind/gsttypefindfunctions.c
View file

@ -1,5 +1,5 @@
/* GStreamer
* Copyright (C) 2003 Benjamion Otte <in7y118@public.uni-hamburg.de>
* Copyright (C) 2003 Benjamin Otte <in7y118@public.uni-hamburg.de>
*
* gsttypefindfunctions.c: collection of various typefind functions
*
@ -39,7 +39,7 @@ GST_DEBUG_CATEGORY_STATIC (type_find_debug);
/*** text/plain ***/
static gboolean xml_check_first_element (GstTypeFind * tf,
const gchar * element, guint elen);
const gchar * element, guint elen, gboolean strict);
static GstStaticCaps utf8_caps = GST_STATIC_CAPS ("text/plain");
@ -86,7 +86,7 @@ utf8_type_find (GstTypeFind * tf, gpointer unused)
guint64 length;
/* leave xml to the xml typefinders */
if (xml_check_first_element (tf, "", 0))
if (xml_check_first_element (tf, "", 0, TRUE))
return;
/* check beginning of stream */
@ -199,22 +199,33 @@ uri_type_find (GstTypeFind * tf, gpointer unused)
}
static gboolean
xml_check_first_element (GstTypeFind * tf, const gchar * element, guint elen)
xml_check_first_element (GstTypeFind * tf, const gchar * element, guint elen,
gboolean strict)
{
guint8 *data = gst_type_find_peek (tf, 0, XML_BUFFER_SIZE);
gboolean got_xmldec;
guint8 *data;
guint offset = 0;
guint pos = 0;
/* look for the XMLDec,
* see XML spec 2.8, Prolog and Document Type Declaration
* http://www.w3.org/TR/2004/REC-xml-20040204/#sec-prolog-dtd */
if (!data || memcmp (data, "<?xml", 5) != 0)
data = gst_type_find_peek (tf, 0, XML_BUFFER_SIZE);
if (!data)
return FALSE;
pos += 5;
data += 5;
/* look for the XMLDec
* see XML spec 2.8, Prolog and Document Type Declaration
* http://www.w3.org/TR/2004/REC-xml-20040204/#sec-prolog-dtd */
got_xmldec = (memcmp (data, "<?xml", 5) == 0);
/* look for the first element, it has to be a <smil> element */
if (strict && !got_xmldec)
return FALSE;
/* skip XMLDec in any case if we've got one */
if (got_xmldec) {
pos += 5;
data += 5;
}
/* look for the first element, it has to be the requested element */
while (data) {
while (*data != '<') {
XML_INC_BUFFER;
@ -242,7 +253,7 @@ static GstStaticCaps generic_xml_caps = GST_STATIC_CAPS ("application/xml");
static void
xml_type_find (GstTypeFind * tf, gpointer unused)
{
if (xml_check_first_element (tf, "", 0)) {
if (xml_check_first_element (tf, "", 0, TRUE)) {
gst_type_find_suggest (tf, GST_TYPE_FIND_MINIMUM, GENERIC_XML_CAPS);
}
}
@ -255,7 +266,7 @@ static GstStaticCaps smil_caps = GST_STATIC_CAPS ("application/smil");
static void
smil_type_find (GstTypeFind * tf, gpointer unused)
{
if (xml_check_first_element (tf, "smil", 4)) {
if (xml_check_first_element (tf, "smil", 4, FALSE)) {
gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, SMIL_CAPS);
}
}