mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2024-07-02 12:45:51 +00:00
Code Issues 1 Projects Releases Wiki Activity

plugins/elements/gsttee.*: Relay tag events in tee. Fixes parts of #474016.

Browse source 
Original commit message from CVS:
* plugins/elements/gsttee.c:
* plugins/elements/gsttee.h:
Relay tag events in tee. Fixes parts of #474016.
This commit is contained in:
Stefan Kost 2008-07-29 11:57:11 +00:00
parent e240fcbcaa
commit dd7f2c7076
3 changed files with 107 additions and 10 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
ChangeLog
View file

@ -1,3 +1,9 @@
2008-07-29 Stefan Kost <ensonic@users.sf.net>
* plugins/elements/gsttee.c:
* plugins/elements/gsttee.h:
Relay tag events in tee. Fixes parts of #474016.
2008-07-28 Michael Smith <msmith@songbirdnest.com>
* configure.ac:

108
plugins/elements/gsttee.c
View file

@ -99,6 +99,10 @@ typedef struct
GstFlowReturn result;
} PushData;
/* quark to keep track of which pads need events forwarded */
static GQuark need_events;
static GstPad *gst_tee_request_new_pad (GstElement * element,
GstPadTemplate * temp, const gchar * unused);
static void gst_tee_release_pad (GstElement * element, GstPad * pad);
@ -113,10 +117,13 @@ static GstFlowReturn gst_tee_chain (GstPad * pad, GstBuffer * buffer);
static GstFlowReturn gst_tee_buffer_alloc (GstPad * pad, guint64 offset,
guint size, GstCaps * caps, GstBuffer ** buf);
static gboolean gst_tee_sink_activate_push (GstPad * pad, gboolean active);
static gboolean gst_tee_sink_event (GstPad * pad, GstEvent * event);
static gboolean gst_tee_src_check_get_range (GstPad * pad);
static gboolean gst_tee_src_activate_pull (GstPad * pad, gboolean active);
static GstFlowReturn gst_tee_src_get_range (GstPad * pad, guint64 offset,
guint length, GstBuffer ** buf);
static GstPadLinkReturn gst_tee_src_link (GstPad * pad, GstPad * peer);
static void
@ -135,17 +142,26 @@ gst_tee_base_init (gpointer g_class)
gst_static_pad_template_get (&tee_src_template));
push_data = g_quark_from_static_string ("tee-push-data");
need_events = g_quark_from_static_string ("tee-need-events");
}
static void
gst_tee_reset (GstTee * tee)
{
g_free (tee->last_message);
tee->last_message = NULL;
if (tee->tags)
gst_tag_list_free (tee->tags);
tee->tags = NULL;
tee->have_events = FALSE;
}
static void
gst_tee_finalize (GObject * object)
{
GstTee *tee;
tee = GST_TEE (object);
g_free (tee->last_message);
gst_tee_reset (GST_TEE (object));
G_OBJECT_CLASS (parent_class)->finalize (object);
}
@ -208,10 +224,46 @@ gst_tee_init (GstTee * tee, GstTeeClass * g_class)
GST_DEBUG_FUNCPTR (gst_tee_buffer_alloc));
gst_pad_set_activatepush_function (tee->sinkpad,
GST_DEBUG_FUNCPTR (gst_tee_sink_activate_push));
gst_pad_set_event_function (tee->sinkpad, gst_tee_sink_event);
gst_pad_set_chain_function (tee->sinkpad, GST_DEBUG_FUNCPTR (gst_tee_chain));
gst_element_add_pad (GST_ELEMENT (tee), tee->sinkpad);
tee->last_message = NULL;
gst_tee_reset (tee);
}
static gboolean
gst_tee_sink_event (GstPad * pad, GstEvent * event)
{
gboolean res;
GstTee *tee;
tee = GST_TEE (gst_pad_get_parent (pad));
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_TAG:{
GstTagList *list;
GST_DEBUG_OBJECT (tee, "got a tag event");
gst_event_parse_tag (event, &list);
if (tee->tags) {
gst_tag_list_insert (tee->tags, list, GST_TAG_MERGE_PREPEND);
} else {
tee->tags = gst_tag_list_copy (list);
}
tee->have_events = TRUE;
}
break;
case GST_EVENT_EOS:
/* re-gather events on next run */
gst_tee_reset (tee);
break;
default:
break;
}
res = gst_pad_event_default (pad, event);
gst_object_unref (tee);
return res;
}
static GstPad *
@ -271,6 +323,7 @@ gst_tee_request_new_pad (GstElement * element, GstPadTemplate * templ,
GST_DEBUG_FUNCPTR (gst_tee_src_check_get_range));
gst_pad_set_getrange_function (srcpad,
GST_DEBUG_FUNCPTR (gst_tee_src_get_range));
gst_pad_set_link_function (srcpad, GST_DEBUG_FUNCPTR (gst_tee_src_link));
gst_element_add_pad (GST_ELEMENT_CAST (tee), srcpad);
return srcpad;
@ -441,7 +494,7 @@ gst_tee_buffer_alloc (GstPad * pad, guint64 offset, guint size,
if ((allocpad = tee->allocpad)) {
/* if we had a previous pad we used for allocating a buffer, continue using
* it. */
GST_DEBUG_OBJECT (tee, "using pad %s:%s for alloc",
GST_LOG_OBJECT (tee, "using pad %s:%s for alloc",
GST_DEBUG_PAD_NAME (allocpad));
gst_object_ref (allocpad);
GST_OBJECT_UNLOCK (tee);
@ -484,6 +537,18 @@ gst_tee_do_push (GstTee * tee, GstPad * pad, GstBuffer * buffer)
/* don't push on the pad we're pulling from */
res = GST_FLOW_OK;
} else {
if (G_UNLIKELY (GPOINTER_TO_INT (g_object_get_qdata (G_OBJECT (pad),
need_events)))) {
g_object_set_qdata (G_OBJECT (pad), need_events, NULL);
if (tee->tags) {
gst_pad_push_event (pad,
gst_event_new_tag (gst_tag_list_copy (tee->tags)));
}
GST_DEBUG_OBJECT (tee, "events sent on %s:%s", GST_DEBUG_PAD_NAME (pad));
}
res = gst_pad_push (pad, gst_buffer_ref (buffer));
}
return res;
@ -601,11 +666,11 @@ gst_tee_chain (GstPad * pad, GstBuffer * buffer)
tee = GST_TEE (gst_pad_get_parent (pad));
GST_DEBUG_OBJECT (tee, "received buffer %p", buffer);
GST_LOG_OBJECT (tee, "received buffer %p", buffer);
res = gst_tee_handle_buffer (tee, buffer);
GST_DEBUG_OBJECT (tee, "handled buffer %s", gst_flow_get_name (res));
GST_LOG_OBJECT (tee, "handled buffer %s", gst_flow_get_name (res));
gst_object_unref (tee);
@ -791,3 +856,26 @@ gst_tee_src_get_range (GstPad * pad, guint64 offset, guint length,
return ret;
}
static GstPadLinkReturn
gst_tee_src_link (GstPad * pad, GstPad * peer)
{
GstPadLinkReturn result = GST_PAD_LINK_OK;
GstTee *tee;
tee = GST_TEE (gst_pad_get_parent (pad));
GST_DEBUG_OBJECT (tee, "linking source pad");
if (GST_PAD_LINKFUNC (peer)) {
result = GST_PAD_LINKFUNC (peer) (peer, pad);
}
if (GST_PAD_LINK_SUCCESSFUL (result) && tee->have_events) {
/* mark dynamically linked elements */
g_object_set_qdata (G_OBJECT (pad), need_events, GINT_TO_POINTER (TRUE));
}
gst_object_unref (tee);
return result;
}

3
plugins/elements/gsttee.h
View file

@ -78,6 +78,9 @@ struct _GstTee {
GstActivateMode sink_mode;
GstTeePullMode pull_mode;
GstPad *pull_pad;
GstTagList *tags;
gboolean have_events;
};
struct _GstTeeClass {