mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2024-12-18 14:26:43 +00:00
Code Issues 1 Projects Releases Wiki Activity

typefindfunctions: Extend MCC typefinder to also cover version 2.0

Browse source 
Both versions are basically the same, but version 2.0 also allows
60000/1001 as framerate and allows to specify the field and line number
for each payload.

Put the major version into the caps so that elements can limit via caps
negotiation which versions they can support.
This commit is contained in:
Sebastian Dröge 2018-12-27 11:41:54 +02:00 committed by Sebastian Dröge
parent 6c1dc1b129
commit 493d47dca3
1 changed files with 29 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

31
gst/typefind/gsttypefindfunctions.c
View file

@ -5645,6 +5645,32 @@ ssa_type_find (GstTypeFind * tf, gpointer private)
g_free (str);
}
/*** application/x-mcc ***/
static GstStaticCaps mcc_caps = GST_STATIC_CAPS ("application/x-mcc");
#define MCC_CAPS gst_static_caps_get(&mcc_caps)
static void
mcc_type_find (GstTypeFind * tf, gpointer private)
{
const guint8 *data;
data = gst_type_find_peek (tf, 0, 31);
if (data == NULL)
return;
/* MCC files always start with this followed by the version */
if (memcmp (data, "File Format=MacCaption_MCC V", 28) != 0 ||
!g_ascii_isdigit (data[28]) || data[29] != '.' ||
!g_ascii_isdigit (data[30])) {
return;
}
gst_type_find_suggest_simple (tf, GST_TYPE_FIND_MAXIMUM,
"application/x-mcc", "version", G_TYPE_INT, data[28] - '0', NULL);
}
/*** video/x-pva ***/
static GstStaticCaps pva_caps = GST_STATIC_CAPS ("video/x-pva");
@ -5811,8 +5837,9 @@ plugin_init (GstPlugin * plugin)
"imy,ime,imelody", "BEGIN:IMELODY", 13, GST_TYPE_FIND_MAXIMUM);
TYPE_FIND_REGISTER_START_WITH (plugin, "application/x-scc", GST_RANK_PRIMARY,
"scc", "Scenarist_SCC V1.0", 18, GST_TYPE_FIND_MAXIMUM);
TYPE_FIND_REGISTER_START_WITH (plugin, "application/x-mcc", GST_RANK_PRIMARY,
"mcc", "File Format=MacCaption_MCC V1.0", 31, GST_TYPE_FIND_MAXIMUM);
TYPE_FIND_REGISTER (plugin, "application/x-mcc", GST_RANK_PRIMARY,
mcc_type_find, "mcc", MCC_CAPS, NULL, NULL);
#if 0
TYPE_FIND_REGISTER_START_WITH (plugin, "video/x-smoke", GST_RANK_PRIMARY,
NULL, "\x80smoke\x00\x01\x00", 6, GST_TYPE_FIND_MAXIMUM);