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gst/typefind/gsttypefindfunctions.c: Better 3gp typefinding.

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Original commit message from CVS:
Reviewed by : Edward Hervey  <edward@fluendo.com>
* gst/typefind/gsttypefindfunctions.c: (q3gp_type_find),
(qt_type_find):
Better 3gp typefinding.
This commit is contained in:
Edward Hervey 2006-02-22 10:29:22 +00:00
parent 577ded7b53
commit d732f54e6b
2 changed files with 65 additions and 20 deletions
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8
ChangeLog
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@ -1,3 +1,11 @@
2006-02-22 Tommi Myöhänen <ext-tommi do myohanen at nokia dot com>
Reviewed by : Edward Hervey <edward@fluendo.com>
* gst/typefind/gsttypefindfunctions.c: (q3gp_type_find),
(qt_type_find):
Better 3gp typefinding.
2006-02-21 Tim-Philipp Müller <tim at centricular dot net>
* ext/gnomevfs/gstgnomevfssrc.c: (gst_gnome_vfs_src_create):

77
gst/typefind/gsttypefindfunctions.c
View file

@ -1190,14 +1190,47 @@ static GstStaticCaps q3gp_caps = GST_STATIC_CAPS ("application/x-3gp");
static void
q3gp_type_find (GstTypeFind * tf, gpointer unused)
{
guint8 *data = gst_type_find_peek (tf, 4, 8);
if (data &&
(memcmp (data, "ftyp3gp4", 8) == 0 ||
memcmp (data, "ftyp3gp5", 8) == 0 ||
memcmp (data, "ftyp3gp6", 8) == 0)) {
gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, Q3GP_CAPS);
guint32 ftyp_size = 0;
gint offset = 0;
guint8 *data = NULL;
if ((data = gst_type_find_peek (tf, 0, 12)) == NULL) {
return;
}
data += 4;
if (memcmp (data, "ftyp", 4) != 0) {
return;
}
/* check major brand */
data += 4;
if (memcmp (data, "3gp", 3) == 0 ||
memcmp (data, "3gr", 3) == 0 ||
memcmp (data, "3gs", 3) == 0 || memcmp (data, "3gg", 3) == 0) {
gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, Q3GP_CAPS);
return;
}
/* check compatible brands */
if ((data = gst_type_find_peek (tf, 0, 4)) != NULL) {
ftyp_size = GST_READ_UINT32_BE (data);
}
for (offset = 16; offset < ftyp_size; offset += 4) {
if ((data = gst_type_find_peek (tf, offset, 3)) == NULL) {
break;
}
if (memcmp (data, "3gp", 3) == 0 ||
memcmp (data, "3gr", 3) == 0 ||
memcmp (data, "3gs", 3) == 0 || memcmp (data, "3gg", 3) == 0) {
gst_type_find_suggest (tf, GST_TYPE_FIND_LIKELY, Q3GP_CAPS);
break;
}
}
return;
}
/*** video/quicktime ***/
@ -1216,23 +1249,27 @@ qt_type_find (GstTypeFind * tf, gpointer unused)
guint64 size;
while ((data = gst_type_find_peek (tf, offset, 8)) != NULL) {
if (STRNCMP (&data[4], "wide", 4) != 0 &&
STRNCMP (&data[4], "moov", 4) != 0 &&
STRNCMP (&data[4], "mdat", 4) != 0 &&
STRNCMP (&data[4], "pnot", 4) != 0 &&
STRNCMP (&data[4], "PICT", 4) != 0 &&
STRNCMP (&data[4], "ftyp", 4) != 0 &&
STRNCMP (&data[4], "free", 4) != 0 &&
STRNCMP (&data[4], "skip", 4) != 0 &&
STRNCMP (&data[4], "uuid", 4) != 0) {
tip = 0;
break;
/* box/atom types that are in common with ISO base media file format */
if (STRNCMP (&data[4], "moov", 4) == 0 ||
STRNCMP (&data[4], "mdat", 4) == 0 ||
STRNCMP (&data[4], "ftyp", 4) == 0 ||
STRNCMP (&data[4], "free", 4) == 0 ||
STRNCMP (&data[4], "skip", 4) == 0) {
if (tip == 0) {
tip = GST_TYPE_FIND_LIKELY;
} else {
tip = GST_TYPE_FIND_NEARLY_CERTAIN;
}
}
if (tip == 0) {
tip = GST_TYPE_FIND_LIKELY;
} else {
/* other box/atom types, apparently quicktime specific */
else if (STRNCMP (&data[4], "pnot", 4) == 0 ||
STRNCMP (&data[4], "PICT", 4) == 0 ||
STRNCMP (&data[4], "wide", 4) == 0) {
tip = GST_TYPE_FIND_MAXIMUM;
break;
} else {
tip = 0;
break;
}
size = GST_READ_UINT32_BE (data);
if (size == 1) {