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typefindfunctions: export 3gp profile in caps

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This reads the 3gp profile from the major/compatible brands and puts
this as a 'profile' field in caps. This can be used by demuxers to
decide whether they can handle this stream or not. Also needed for
DLNA.

https://bugzilla.gnome.org/show_bug.cgi?id=620291
This commit is contained in:
Arun Raghavan 2010-06-01 23:43:45 +05:30 committed by Tim-Philipp Müller
parent c1982cd6fe
commit ae03de8ff8
1 changed files with 28 additions and 18 deletions
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46
gst/typefind/gsttypefindfunctions.c
View file

@ -34,11 +34,7 @@
#define USE_GIO
#endif
#include <gst/gsttypefind.h>
#include <gst/gstelement.h>
#include <gst/gstversion.h>
#include <gst/gstinfo.h>
#include <gst/gstutils.h>
#include <gst/gst.h>
#include <stdio.h>
#include <string.h>
@ -2359,15 +2355,31 @@ m4a_type_find (GstTypeFind * tf, gpointer unused)
/*** application/x-3gp ***/
/* The Q is there because variables can't start with a number. */
static GstStaticCaps q3gp_caps = GST_STATIC_CAPS ("application/x-3gp");
#define Q3GP_CAPS (gst_static_caps_get(&q3gp_caps))
static const gchar *
q3gp_type_find_get_profile (const guint8 * data)
{
switch (GST_MAKE_FOURCC (data[0], data[1], data[2], 0)) {
case GST_MAKE_FOURCC ('3', 'g', 'g', 0):
return "general";
case GST_MAKE_FOURCC ('3', 'g', 'p', 0):
return "basic";
case GST_MAKE_FOURCC ('3', 'g', 's', 0):
return "streaming-server";
case GST_MAKE_FOURCC ('3', 'g', 'r', 0):
return "progressive-download";
default:
break;
}
return NULL;
}
static void
q3gp_type_find (GstTypeFind * tf, gpointer unused)
{
const gchar *profile;
guint32 ftyp_size = 0;
gint offset = 0;
guint8 *data = NULL;
@ -2383,10 +2395,9 @@ q3gp_type_find (GstTypeFind * tf, gpointer unused)
/* 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);
if ((profile = q3gp_type_find_get_profile (data))) {
gst_type_find_suggest_simple (tf, GST_TYPE_FIND_MAXIMUM,
"application/x-3gp", "profile", G_TYPE_STRING, profile, NULL);
return;
}
@ -2398,11 +2409,10 @@ q3gp_type_find (GstTypeFind * tf, gpointer unused)
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;
if ((profile = q3gp_type_find_get_profile (data))) {
gst_type_find_suggest_simple (tf, GST_TYPE_FIND_MAXIMUM,
"application/x-3gp", "profile", G_TYPE_STRING, profile, NULL);
return;
}
}