-/* GStreamer
+/* GStreamer input selector
* Copyright (C) 2003 Julien Moutte <julien@moutte.net>
* Copyright (C) 2005 Ronald S. Bultje <rbultje@ronald.bitfreak.net>
* Copyright (C) 2005 Jan Schmidt <thaytan@mad.scientist.com>
* Copyright (C) 2007 Wim Taymans <wim.taymans@gmail.com>
* Copyright (C) 2007 Andy Wingo <wingo@pobox.com>
* Copyright (C) 2008 Nokia Corporation. (contact <stefan.kost@nokia.com>)
+ * Copyright (C) 2011 Sebastian Dröge <sebastian.droege@collabora.co.uk>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
/**
* SECTION:element-input-selector
- * @short_description: N-to-1 stream selectoring
* @see_also: #GstOutputSelector
*
* Direct one out of N input streams to the output pad.
+ *
+ * The input pads are from a GstPad subclass and have additional
+ * properties, which users may find useful, namely:
+ *
+ * <itemizedlist>
+ * <listitem>
+ * "running-time": Running time of stream on pad (#gint64)
+ * </listitem>
+ * <listitem>
+ * "tags": The currently active tags on the pad (#GstTagList, boxed type)
+ * </listitem>
+ * <listitem>
+ * "active": If the pad is currently active (#gboolean)
+ * </listitem>
+ * <listitem>
+ * "always-ok" : Make an inactive pads return #GST_FLOW_OK instead of
+ * #GST_FLOW_NOT_LINKED
+ * </listitem>
+ * </itemizedlist>
+ *
+ * Since: 0.10.32
*/
#ifdef HAVE_CONFIG_H
#include <string.h>
#include "gstinputselector.h"
-#include "gstselector-marshal.h"
GST_DEBUG_CATEGORY_STATIC (input_selector_debug);
#define GST_CAT_DEFAULT input_selector_debug
-static const GstElementDetails gst_input_selector_details =
-GST_ELEMENT_DETAILS ("Input selector",
- "Generic",
- "N-to-1 input stream selectoring",
- "Julien Moutte <julien@moutte.net>\n"
- "Ronald S. Bultje <rbultje@ronald.bitfreak.net>\n"
- "Jan Schmidt <thaytan@mad.scientist.com>\n"
- "Wim Taymans <wim.taymans@gmail.com>");
+#if GLIB_CHECK_VERSION(2, 26, 0)
+#define NOTIFY_MUTEX_LOCK()
+#define NOTIFY_MUTEX_UNLOCK()
+#else
+static GStaticRecMutex notify_mutex = G_STATIC_REC_MUTEX_INIT;
+#define NOTIFY_MUTEX_LOCK() g_static_rec_mutex_lock (¬ify_mutex)
+#define NOTIFY_MUTEX_UNLOCK() g_static_rec_mutex_unlock (¬ify_mutex)
+#endif
+
+#define GST_INPUT_SELECTOR_GET_LOCK(sel) (((GstInputSelector*)(sel))->lock)
+#define GST_INPUT_SELECTOR_GET_COND(sel) (((GstInputSelector*)(sel))->cond)
+#define GST_INPUT_SELECTOR_LOCK(sel) (g_mutex_lock (GST_INPUT_SELECTOR_GET_LOCK(sel)))
+#define GST_INPUT_SELECTOR_UNLOCK(sel) (g_mutex_unlock (GST_INPUT_SELECTOR_GET_LOCK(sel)))
+#define GST_INPUT_SELECTOR_WAIT(sel) (g_cond_wait (GST_INPUT_SELECTOR_GET_COND(sel), \
+ GST_INPUT_SELECTOR_GET_LOCK(sel)))
+#define GST_INPUT_SELECTOR_BROADCAST(sel) (g_cond_broadcast (GST_INPUT_SELECTOR_GET_COND(sel)))
static GstStaticPadTemplate gst_input_selector_sink_factory =
GST_STATIC_PAD_TEMPLATE ("sink%d",
enum
{
- PROP_ACTIVE_PAD = 1,
- PROP_SELECT_ALL
+ PROP_0,
+ PROP_N_PADS,
+ PROP_ACTIVE_PAD
};
+#define DEFAULT_PAD_ALWAYS_OK TRUE
+
enum
{
- PAD_PROP_RUNNING_TIME = 1
+ PROP_PAD_0,
+ PROP_PAD_RUNNING_TIME,
+ PROP_PAD_TAGS,
+ PROP_PAD_ACTIVE,
+ PROP_PAD_ALWAYS_OK
};
enum
};
static guint gst_input_selector_signals[LAST_SIGNAL] = { 0 };
-static gboolean gst_input_selector_is_active_sinkpad (GstInputSelector * sel,
- GstPad * pad);
+static inline gboolean gst_input_selector_is_active_sinkpad (GstInputSelector *
+ sel, GstPad * pad);
static GstPad *gst_input_selector_activate_sinkpad (GstInputSelector * sel,
GstPad * pad);
static GstPad *gst_input_selector_get_linked_pad (GstPad * pad,
gboolean strict);
-static void gst_input_selector_push_pending_stop (GstInputSelector * self);
-static gboolean gst_input_selector_check_eos (GstElement * selector);
#define GST_TYPE_SELECTOR_PAD \
(gst_selector_pad_get_type())
{
GstPad parent;
- gboolean active;
- gboolean eos;
+ gboolean active; /* when buffer have passed the pad */
+ gboolean pushed; /* when buffer was pushed downstream since activation */
+ gboolean eos; /* when EOS has been received */
+ gboolean eos_sent; /* when EOS was sent downstream */
+ gboolean discont; /* after switching we create a discont */
+ gboolean flushing; /* set after flush-start and before flush-stop */
+ gboolean always_ok;
+ GstSegment segment; /* the current segment on the pad */
+ GstTagList *tags; /* last tags received on the pad */
+
gboolean segment_pending;
- GstSegment segment;
};
struct _GstSelectorPadClass
static void gst_selector_pad_finalize (GObject * object);
static void gst_selector_pad_get_property (GObject * object,
guint prop_id, GValue * value, GParamSpec * pspec);
+static void gst_selector_pad_set_property (GObject * object,
+ guint prop_id, const GValue * value, GParamSpec * pspec);
static GstPadClass *selector_pad_parent_class = NULL;
static void gst_selector_pad_reset (GstSelectorPad * pad);
static gboolean gst_selector_pad_event (GstPad * pad, GstEvent * event);
static GstCaps *gst_selector_pad_getcaps (GstPad * pad);
-static GList *gst_selector_pad_get_linked_pads (GstPad * pad);
+static gboolean gst_selector_pad_acceptcaps (GstPad * pad, GstCaps * caps);
+static GstIterator *gst_selector_pad_iterate_linked_pads (GstPad * pad);
static GstFlowReturn gst_selector_pad_chain (GstPad * pad, GstBuffer * buf);
static GstFlowReturn gst_selector_pad_bufferalloc (GstPad * pad,
guint64 offset, guint size, GstCaps * caps, GstBuffer ** buf);
static GType
gst_selector_pad_get_type (void)
{
- static GType selector_pad_type = 0;
-
- if (!selector_pad_type) {
- static const GTypeInfo selector_pad_info = {
- sizeof (GstSelectorPadClass),
- NULL,
- NULL,
- (GClassInitFunc) gst_selector_pad_class_init,
- NULL,
- NULL,
- sizeof (GstSelectorPad),
- 0,
- (GInstanceInitFunc) gst_selector_pad_init,
- };
-
- selector_pad_type =
- g_type_register_static (GST_TYPE_PAD, "GstSelectorPad",
+ static volatile gsize selector_pad_type = 0;
+ static const GTypeInfo selector_pad_info = {
+ sizeof (GstSelectorPadClass),
+ NULL,
+ NULL,
+ (GClassInitFunc) gst_selector_pad_class_init,
+ NULL,
+ NULL,
+ sizeof (GstSelectorPad),
+ 0,
+ (GInstanceInitFunc) gst_selector_pad_init,
+ };
+
+ if (g_once_init_enter (&selector_pad_type)) {
+ GType tmp = g_type_register_static (GST_TYPE_PAD, "GstSelectorPad",
&selector_pad_info, 0);
+ g_once_init_leave (&selector_pad_type, tmp);
}
- return selector_pad_type;
+
+ return (GType) selector_pad_type;
}
static void
selector_pad_parent_class = g_type_class_peek_parent (klass);
- gobject_class->get_property =
- GST_DEBUG_FUNCPTR (gst_selector_pad_get_property);
- g_object_class_install_property (gobject_class, PAD_PROP_RUNNING_TIME,
- g_param_spec_int64 ("running-time", "Running time",
- "Running time of stream on pad", 0, G_MAXINT64, 0, G_PARAM_READABLE));
-
gobject_class->finalize = gst_selector_pad_finalize;
+
+ gobject_class->get_property = gst_selector_pad_get_property;
+ gobject_class->set_property = gst_selector_pad_set_property;
+
+ g_object_class_install_property (gobject_class, PROP_PAD_RUNNING_TIME,
+ g_param_spec_int64 ("running-time", "Running time",
+ "Running time of stream on pad", 0, G_MAXINT64, 0,
+ G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
+ g_object_class_install_property (gobject_class, PROP_PAD_TAGS,
+ g_param_spec_boxed ("tags", "Tags",
+ "The currently active tags on the pad", GST_TYPE_TAG_LIST,
+ G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
+ g_object_class_install_property (gobject_class, PROP_PAD_ACTIVE,
+ g_param_spec_boolean ("active", "Active",
+ "If the pad is currently active", FALSE,
+ G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
+ /* FIXME: better property name? */
+ g_object_class_install_property (gobject_class, PROP_PAD_ALWAYS_OK,
+ g_param_spec_boolean ("always-ok", "Always OK",
+ "Make an inactive pad return OK instead of NOT_LINKED",
+ DEFAULT_PAD_ALWAYS_OK, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
}
static void
gst_selector_pad_init (GstSelectorPad * pad)
{
+ pad->always_ok = DEFAULT_PAD_ALWAYS_OK;
gst_selector_pad_reset (pad);
}
pad = GST_SELECTOR_PAD_CAST (object);
+ if (pad->tags)
+ gst_tag_list_free (pad->tags);
+
G_OBJECT_CLASS (selector_pad_parent_class)->finalize (object);
}
static void
+gst_selector_pad_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec)
+{
+ GstSelectorPad *spad = GST_SELECTOR_PAD_CAST (object);
+
+ switch (prop_id) {
+ case PROP_PAD_ALWAYS_OK:
+ GST_OBJECT_LOCK (object);
+ spad->always_ok = g_value_get_boolean (value);
+ GST_OBJECT_UNLOCK (object);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
gst_selector_pad_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstSelectorPad *spad = GST_SELECTOR_PAD_CAST (object);
switch (prop_id) {
- case PAD_PROP_RUNNING_TIME:
+ case PROP_PAD_RUNNING_TIME:
g_value_set_int64 (value, gst_selector_pad_get_running_time (spad));
break;
+ case PROP_PAD_TAGS:
+ GST_OBJECT_LOCK (object);
+ g_value_set_boxed (value, spad->tags);
+ GST_OBJECT_UNLOCK (object);
+ break;
+ case PROP_PAD_ACTIVE:
+ {
+ GstInputSelector *sel;
+ sel = GST_INPUT_SELECTOR (gst_pad_get_parent (spad));
+ g_value_set_boolean (value, gst_input_selector_is_active_sinkpad (sel,
+ GST_PAD_CAST (spad)));
+ gst_object_unref (sel);
+ break;
+ }
+ case PROP_PAD_ALWAYS_OK:
+ GST_OBJECT_LOCK (object);
+ g_value_set_boolean (value, spad->always_ok);
+ GST_OBJECT_UNLOCK (object);
+ break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
gint64 ret = 0;
GST_OBJECT_LOCK (pad);
-
if (pad->active) {
gint64 last_stop = pad->segment.last_stop;
ret = gst_segment_to_running_time (&pad->segment, GST_FORMAT_TIME,
last_stop);
}
-
GST_OBJECT_UNLOCK (pad);
GST_DEBUG_OBJECT (pad, "running time: %" GST_TIME_FORMAT,
static void
gst_selector_pad_reset (GstSelectorPad * pad)
{
+ GST_OBJECT_LOCK (pad);
pad->active = FALSE;
+ pad->pushed = FALSE;
pad->eos = FALSE;
+ pad->eos_sent = FALSE;
+ pad->segment_pending = FALSE;
+ pad->discont = FALSE;
+ pad->flushing = FALSE;
gst_segment_init (&pad->segment, GST_FORMAT_UNDEFINED);
+ GST_OBJECT_UNLOCK (pad);
}
/* strictly get the linked pad from the sinkpad. If the pad is active we return
* the srcpad else we return NULL */
-static GList *
-gst_selector_pad_get_linked_pads (GstPad * pad)
+static GstIterator *
+gst_selector_pad_iterate_linked_pads (GstPad * pad)
{
+ GstInputSelector *sel = GST_INPUT_SELECTOR (gst_pad_get_parent (pad));
GstPad *otherpad;
+ GstIterator *it;
otherpad = gst_input_selector_get_linked_pad (pad, TRUE);
- if (!otherpad)
- return NULL;
+ it = gst_iterator_new_single (GST_TYPE_PAD, otherpad,
+ (GstCopyFunction) gst_object_ref, (GFreeFunc) gst_object_unref);
- /* need to drop the ref, internal linked pads is not MT safe */
- gst_object_unref (otherpad);
+ if (otherpad)
+ gst_object_unref (otherpad);
+ gst_object_unref (sel);
- return g_list_append (NULL, otherpad);
+ return it;
}
static gboolean
gst_selector_pad_event (GstPad * pad, GstEvent * event)
{
gboolean res = TRUE;
- gboolean forward = TRUE;
+ gboolean forward;
GstInputSelector *sel;
GstSelectorPad *selpad;
+ GstPad *prev_active_sinkpad;
+ GstPad *active_sinkpad;
sel = GST_INPUT_SELECTOR (gst_pad_get_parent (pad));
selpad = GST_SELECTOR_PAD_CAST (pad);
+ GST_INPUT_SELECTOR_LOCK (sel);
+ prev_active_sinkpad = sel->active_sinkpad;
+ active_sinkpad = gst_input_selector_activate_sinkpad (sel, pad);
+
/* only forward if we are dealing with the active sinkpad */
- forward = gst_input_selector_is_active_sinkpad (sel, pad);
+ forward = (pad == active_sinkpad);
+ GST_INPUT_SELECTOR_UNLOCK (sel);
- /* forward all events in select_all mode by default */
- if (sel->select_all) {
- forward = TRUE;
+ if (prev_active_sinkpad != active_sinkpad && pad == active_sinkpad) {
+ NOTIFY_MUTEX_LOCK ();
+ g_object_notify (G_OBJECT (sel), "active-pad");
+ NOTIFY_MUTEX_UNLOCK ();
}
switch (GST_EVENT_TYPE (event)) {
+ case GST_EVENT_FLUSH_START:
+ /* Unblock the pad if it's waiting */
+ GST_INPUT_SELECTOR_LOCK (sel);
+ selpad->flushing = TRUE;
+ GST_INPUT_SELECTOR_BROADCAST (sel);
+ GST_INPUT_SELECTOR_UNLOCK (sel);
+ break;
case GST_EVENT_FLUSH_STOP:
+ GST_INPUT_SELECTOR_LOCK (sel);
gst_selector_pad_reset (selpad);
+ sel->pending_close = FALSE;
+ GST_INPUT_SELECTOR_UNLOCK (sel);
break;
case GST_EVENT_NEWSEGMENT:
{
gst_event_parse_new_segment_full (event, &update, &rate, &arate, &format,
&start, &stop, &time);
- GST_DEBUG_OBJECT (sel,
+ GST_DEBUG_OBJECT (pad,
"configured NEWSEGMENT update %d, rate %lf, applied rate %lf, "
"format %d, "
"%" G_GINT64_FORMAT " -- %" G_GINT64_FORMAT ", time %"
G_GINT64_FORMAT, update, rate, arate, format, start, stop, time);
+ GST_INPUT_SELECTOR_LOCK (sel);
+ GST_OBJECT_LOCK (selpad);
gst_segment_set_newsegment_full (&selpad->segment, update,
rate, arate, format, start, stop, time);
- /* if we are not going to forward the segment, mark the segment as
- * pending */
+ GST_OBJECT_UNLOCK (selpad);
+
+ /* If we aren't forwarding the event because the pad is not the
+ * active_sinkpad, then set the flag on the pad
+ * that says a segment needs sending if/when that pad is activated.
+ * For all other cases, we send the event immediately, which makes
+ * sparse streams and other segment updates work correctly downstream.
+ */
if (!forward)
selpad->segment_pending = TRUE;
+
+ GST_INPUT_SELECTOR_UNLOCK (sel);
+ break;
+ }
+ case GST_EVENT_TAG:
+ {
+ GstTagList *tags, *oldtags, *newtags;
+
+ gst_event_parse_tag (event, &tags);
+
+ GST_OBJECT_LOCK (selpad);
+ oldtags = selpad->tags;
+
+ newtags = gst_tag_list_merge (oldtags, tags, GST_TAG_MERGE_REPLACE);
+ selpad->tags = newtags;
+ if (oldtags)
+ gst_tag_list_free (oldtags);
+ GST_DEBUG_OBJECT (pad, "received tags %" GST_PTR_FORMAT, newtags);
+ GST_OBJECT_UNLOCK (selpad);
+
+ g_object_notify (G_OBJECT (selpad), "tags");
break;
}
case GST_EVENT_EOS:
selpad->eos = TRUE;
- /* don't forward eos in select_all mode until all sink pads have eos */
- if (sel->select_all && !gst_input_selector_check_eos (GST_ELEMENT (sel))) {
- forward = FALSE;
+
+ if (forward) {
+ selpad->eos_sent = TRUE;
+ } else {
+ GstSelectorPad *tmp;
+
+ /* If the active sinkpad is in EOS state but EOS
+ * was not sent downstream this means that the pad
+ * got EOS before it was set as active pad and that
+ * the previously active pad got EOS after it was
+ * active
+ */
+ GST_INPUT_SELECTOR_LOCK (sel);
+ active_sinkpad = gst_input_selector_activate_sinkpad (sel, pad);
+ tmp = GST_SELECTOR_PAD (active_sinkpad);
+ forward = (tmp->eos && !tmp->eos_sent);
+ tmp->eos_sent = TRUE;
+ GST_INPUT_SELECTOR_UNLOCK (sel);
}
+ GST_DEBUG_OBJECT (pad, "received EOS");
break;
default:
break;
}
- if (forward)
+ if (forward) {
+ GST_DEBUG_OBJECT (pad, "forwarding event");
res = gst_pad_push_event (sel->srcpad, event);
- else
+ } else
gst_event_unref (event);
gst_object_unref (sel);
sel = GST_INPUT_SELECTOR (gst_pad_get_parent (pad));
GST_DEBUG_OBJECT (sel, "Getting caps of srcpad peer");
- caps = gst_pad_peer_get_caps (sel->srcpad);
+ caps = gst_pad_peer_get_caps_reffed (sel->srcpad);
if (caps == NULL)
caps = gst_caps_new_any ();
return caps;
}
+static gboolean
+gst_selector_pad_acceptcaps (GstPad * pad, GstCaps * caps)
+{
+ GstInputSelector *sel;
+ gboolean res;
+
+ sel = GST_INPUT_SELECTOR (gst_pad_get_parent (pad));
+
+ GST_DEBUG_OBJECT (sel, "Checking acceptcaps of srcpad peer");
+ res = gst_pad_peer_accept_caps (sel->srcpad, caps);
+ gst_object_unref (sel);
+
+ return res;
+}
+
static GstFlowReturn
gst_selector_pad_bufferalloc (GstPad * pad, guint64 offset,
guint size, GstCaps * caps, GstBuffer ** buf)
GstInputSelector *sel;
GstFlowReturn result;
GstPad *active_sinkpad;
+ GstPad *prev_active_sinkpad;
+ GstSelectorPad *selpad;
sel = GST_INPUT_SELECTOR (gst_pad_get_parent (pad));
+ selpad = GST_SELECTOR_PAD_CAST (pad);
- active_sinkpad = gst_input_selector_activate_sinkpad (sel, pad);
+ GST_LOG_OBJECT (pad, "received alloc");
- /* Fallback allocation for buffers from pads except the selected one */
- if (pad != active_sinkpad && !sel->select_all) {
- GST_DEBUG_OBJECT (sel,
- "Pad %s:%s is not selected. Performing fallback allocation",
- GST_DEBUG_PAD_NAME (pad));
+ GST_INPUT_SELECTOR_LOCK (sel);
+ prev_active_sinkpad = sel->active_sinkpad;
+ active_sinkpad = gst_input_selector_activate_sinkpad (sel, pad);
- *buf = NULL;
- result = GST_FLOW_OK;
- } else {
- result = gst_pad_alloc_buffer (sel->srcpad, offset, size, caps, buf);
+ if (pad != active_sinkpad)
+ goto not_active;
- /* FIXME: HACK. If buffer alloc returns not-linked, perform a fallback
- * allocation. This should NOT be necessary, because playbin should
- * properly block the source pad from running until it's finished hooking
- * everything up, but playbin needs refactoring first. */
- if (result == GST_FLOW_NOT_LINKED) {
- GST_DEBUG_OBJECT (sel,
- "No peer pad yet - performing fallback allocation for pad %s:%s",
- GST_DEBUG_PAD_NAME (pad));
+ GST_INPUT_SELECTOR_UNLOCK (sel);
- *buf = NULL;
- result = GST_FLOW_OK;
- }
+ if (prev_active_sinkpad != active_sinkpad && pad == active_sinkpad) {
+ NOTIFY_MUTEX_LOCK ();
+ g_object_notify (G_OBJECT (sel), "active-pad");
+ NOTIFY_MUTEX_UNLOCK ();
}
+ result = gst_pad_alloc_buffer (sel->srcpad, offset, size, caps, buf);
+
+done:
gst_object_unref (sel);
return result;
-}
-static gboolean
-gst_input_selector_wait (GstInputSelector * self, GstPad * pad)
-{
- gboolean flushing;
-
- GST_OBJECT_LOCK (self);
+ /* ERRORS */
+not_active:
+ {
+ gboolean active_pad_pushed = GST_SELECTOR_PAD_CAST (active_sinkpad)->pushed;
- while (self->blocked)
- g_cond_wait (self->blocked_cond, GST_OBJECT_GET_LOCK (self));
+ GST_INPUT_SELECTOR_UNLOCK (sel);
- GST_OBJECT_UNLOCK (self);
+ /* unselected pad, perform fallback alloc or return unlinked when
+ * asked */
+ GST_OBJECT_LOCK (selpad);
+ if (selpad->always_ok || !active_pad_pushed) {
+ GST_DEBUG_OBJECT (pad, "Not selected, performing fallback allocation");
+ *buf = NULL;
+ result = GST_FLOW_OK;
+ } else {
+ GST_DEBUG_OBJECT (pad, "Not selected, return NOT_LINKED");
+ result = GST_FLOW_NOT_LINKED;
+ }
+ GST_OBJECT_UNLOCK (selpad);
- GST_OBJECT_LOCK (pad);
- flushing = GST_PAD_IS_FLUSHING (pad);
- GST_OBJECT_UNLOCK (pad);
+ goto done;
+ }
+}
- return flushing;
+/* must be called with the SELECTOR_LOCK, will block while the pad is blocked
+ * or return TRUE when flushing */
+static gboolean
+gst_input_selector_wait (GstInputSelector * self, GstSelectorPad * pad)
+{
+ while (self->blocked && !self->flushing && !pad->flushing) {
+ /* we can be unlocked here when we are shutting down (flushing) or when we
+ * get unblocked */
+ GST_INPUT_SELECTOR_WAIT (self);
+ }
+ return self->flushing;
}
static GstFlowReturn
GstInputSelector *sel;
GstFlowReturn res;
GstPad *active_sinkpad;
+ GstPad *prev_active_sinkpad;
GstSelectorPad *selpad;
- GstClockTime end_time, duration;
+ GstClockTime start_time;
GstSegment *seg;
+ GstEvent *close_event = NULL, *start_event = NULL;
+ GstCaps *caps;
sel = GST_INPUT_SELECTOR (gst_pad_get_parent (pad));
selpad = GST_SELECTOR_PAD_CAST (pad);
seg = &selpad->segment;
- if (gst_input_selector_wait (sel, pad))
- goto ignore;
+ GST_INPUT_SELECTOR_LOCK (sel);
+ /* wait or check for flushing */
+ if (gst_input_selector_wait (sel, selpad))
+ goto flushing;
+ GST_LOG_OBJECT (pad, "getting active pad");
+
+ prev_active_sinkpad = sel->active_sinkpad;
active_sinkpad = gst_input_selector_activate_sinkpad (sel, pad);
- end_time = GST_BUFFER_TIMESTAMP (buf);
- if (GST_CLOCK_TIME_IS_VALID (end_time)) {
- duration = GST_BUFFER_DURATION (buf);
- if (GST_CLOCK_TIME_IS_VALID (duration))
- end_time += duration;
- GST_DEBUG_OBJECT (sel, "received end time %" GST_TIME_FORMAT,
- GST_TIME_ARGS (end_time));
- gst_segment_set_last_stop (seg, seg->format, end_time);
+ /* update the segment on the srcpad */
+ start_time = GST_BUFFER_TIMESTAMP (buf);
+ if (GST_CLOCK_TIME_IS_VALID (start_time)) {
+ GST_LOG_OBJECT (pad, "received start time %" GST_TIME_FORMAT,
+ GST_TIME_ARGS (start_time));
+ if (GST_BUFFER_DURATION_IS_VALID (buf))
+ GST_LOG_OBJECT (pad, "received end time %" GST_TIME_FORMAT,
+ GST_TIME_ARGS (start_time + GST_BUFFER_DURATION (buf)));
+
+ GST_OBJECT_LOCK (pad);
+ gst_segment_set_last_stop (seg, seg->format, start_time);
+ GST_OBJECT_UNLOCK (pad);
}
/* Ignore buffers from pads except the selected one */
- if (pad != active_sinkpad && !sel->select_all)
+ if (pad != active_sinkpad)
goto ignore;
- gst_input_selector_push_pending_stop (sel);
+ if (G_UNLIKELY (sel->pending_close)) {
+ GstSegment *cseg = &sel->segment;
+
+ GST_DEBUG_OBJECT (sel,
+ "pushing close NEWSEGMENT update %d, rate %lf, applied rate %lf, "
+ "format %d, "
+ "%" G_GINT64_FORMAT " -- %" G_GINT64_FORMAT ", time %"
+ G_GINT64_FORMAT, TRUE, cseg->rate, cseg->applied_rate, cseg->format,
+ cseg->start, cseg->stop, cseg->time);
+ /* create update segment */
+ close_event = gst_event_new_new_segment_full (TRUE, cseg->rate,
+ cseg->applied_rate, cseg->format, cseg->start, cseg->stop, cseg->time);
+
+ sel->pending_close = FALSE;
+ }
/* if we have a pending segment, push it out now */
- if (selpad->segment_pending) {
- gst_pad_push_event (sel->srcpad, gst_event_new_new_segment_full (FALSE,
- seg->rate, seg->applied_rate, seg->format, seg->start, seg->stop,
- seg->time));
+ if (G_UNLIKELY (selpad->segment_pending)) {
+ GST_DEBUG_OBJECT (pad,
+ "pushing pending NEWSEGMENT update %d, rate %lf, applied rate %lf, "
+ "format %d, "
+ "%" G_GINT64_FORMAT " -- %" G_GINT64_FORMAT ", time %"
+ G_GINT64_FORMAT, FALSE, seg->rate, seg->applied_rate, seg->format,
+ seg->start, seg->stop, seg->time);
+
+ start_event = gst_event_new_new_segment_full (FALSE, seg->rate,
+ seg->applied_rate, seg->format, seg->start, seg->stop, seg->time);
selpad->segment_pending = FALSE;
}
+ GST_INPUT_SELECTOR_UNLOCK (sel);
+
+ if (prev_active_sinkpad != active_sinkpad && pad == active_sinkpad) {
+ NOTIFY_MUTEX_LOCK ();
+ g_object_notify (G_OBJECT (sel), "active-pad");
+ NOTIFY_MUTEX_UNLOCK ();
+ }
+
+ if (close_event)
+ gst_pad_push_event (sel->srcpad, close_event);
+
+ if (start_event)
+ gst_pad_push_event (sel->srcpad, start_event);
+
+ if (selpad->discont) {
+ buf = gst_buffer_make_writable (buf);
+
+ GST_DEBUG_OBJECT (pad, "Marking discont buffer %p", buf);
+ GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_DISCONT);
+ selpad->discont = FALSE;
+ }
/* forward */
- GST_DEBUG_OBJECT (sel, "Forwarding buffer %p from pad %s:%s", buf,
- GST_DEBUG_PAD_NAME (pad));
+ GST_LOG_OBJECT (pad, "Forwarding buffer %p", buf);
+
+ if ((caps = GST_BUFFER_CAPS (buf))) {
+ if (GST_PAD_CAPS (sel->srcpad) != caps)
+ gst_pad_set_caps (sel->srcpad, caps);
+ }
+
res = gst_pad_push (sel->srcpad, buf);
+ selpad->pushed = TRUE;
+
done:
gst_object_unref (sel);
return res;
+
/* dropped buffers */
ignore:
{
- GST_DEBUG_OBJECT (sel, "Ignoring buffer %p from pad %s:%s",
- buf, GST_DEBUG_PAD_NAME (pad));
+ gboolean active_pad_pushed = GST_SELECTOR_PAD_CAST (active_sinkpad)->pushed;
+
+ GST_DEBUG_OBJECT (pad, "Pad not active, discard buffer %p", buf);
+ /* when we drop a buffer, we're creating a discont on this pad */
+ selpad->discont = TRUE;
+ GST_INPUT_SELECTOR_UNLOCK (sel);
gst_buffer_unref (buf);
- res = GST_FLOW_OK;
+
+ /* figure out what to return upstream */
+ GST_OBJECT_LOCK (selpad);
+ if (selpad->always_ok || !active_pad_pushed)
+ res = GST_FLOW_OK;
+ else
+ res = GST_FLOW_NOT_LINKED;
+ GST_OBJECT_UNLOCK (selpad);
+
+ goto done;
+ }
+flushing:
+ {
+ GST_DEBUG_OBJECT (pad, "We are flushing, discard buffer %p", buf);
+ GST_INPUT_SELECTOR_UNLOCK (sel);
+ gst_buffer_unref (buf);
+ res = GST_FLOW_WRONG_STATE;
goto done;
}
}
static void gst_input_selector_dispose (GObject * object);
-static void gst_input_selector_init (GstInputSelector * sel);
-static void gst_input_selector_base_init (GstInputSelectorClass * klass);
-static void gst_input_selector_class_init (GstInputSelectorClass * klass);
+
static void gst_input_selector_set_property (GObject * object,
guint prop_id, const GValue * value, GParamSpec * pspec);
static void gst_input_selector_get_property (GObject * object,
guint prop_id, GValue * value, GParamSpec * pspec);
+
static GstPad *gst_input_selector_request_new_pad (GstElement * element,
GstPadTemplate * templ, const gchar * unused);
static void gst_input_selector_release_pad (GstElement * element, GstPad * pad);
+
static GstStateChangeReturn gst_input_selector_change_state (GstElement *
element, GstStateChange transition);
-static GList *gst_input_selector_get_linked_pads (GstPad * pad);
+
static GstCaps *gst_input_selector_getcaps (GstPad * pad);
+static gboolean gst_input_selector_event (GstPad * pad, GstEvent * event);
+static gboolean gst_input_selector_query (GstPad * pad, GstQuery * query);
static gint64 gst_input_selector_block (GstInputSelector * self);
static void gst_input_selector_switch (GstInputSelector * self,
- const gchar * pad_name, gint64 stop_time, gint64 start_time);
+ GstPad * pad, gint64 stop_time, gint64 start_time);
-static GstElementClass *parent_class = NULL;
+/* FIXME: create these marshallers using glib-genmarshal */
+#define g_marshal_value_peek_object(v) (v)->data[0].v_pointer
+#define g_marshal_value_peek_int64(v) (v)->data[0].v_int64
-GType
-gst_input_selector_get_type (void)
+static void
+gst_input_selector_marshal_INT64__VOID (GClosure * closure,
+ GValue * return_value G_GNUC_UNUSED,
+ guint n_param_values,
+ const GValue * param_values,
+ gpointer invocation_hint G_GNUC_UNUSED, gpointer marshal_data)
{
- static GType input_selector_type = 0;
-
- if (!input_selector_type) {
- static const GTypeInfo input_selector_info = {
- sizeof (GstInputSelectorClass),
- (GBaseInitFunc) gst_input_selector_base_init,
- NULL,
- (GClassInitFunc) gst_input_selector_class_init,
- NULL,
- NULL,
- sizeof (GstInputSelector),
- 0,
- (GInstanceInitFunc) gst_input_selector_init,
- };
- input_selector_type =
- g_type_register_static (GST_TYPE_ELEMENT,
- "GstInputSelector", &input_selector_info, 0);
- GST_DEBUG_CATEGORY_INIT (input_selector_debug,
- "input-selector", 0, "An input stream selector element");
+ typedef gint64 (*GMarshalFunc_INT64__VOID) (gpointer data1, gpointer data2);
+ register GMarshalFunc_INT64__VOID callback;
+ register GCClosure *cc = (GCClosure *) closure;
+ register gpointer data1, data2;
+ gint64 v_return;
+
+ g_return_if_fail (return_value != NULL);
+ g_return_if_fail (n_param_values == 1);
+
+ if (G_CCLOSURE_SWAP_DATA (closure)) {
+ data1 = closure->data;
+ data2 = g_value_peek_pointer (param_values + 0);
+ } else {
+ data1 = g_value_peek_pointer (param_values + 0);
+ data2 = closure->data;
}
+ callback =
+ (GMarshalFunc_INT64__VOID) (marshal_data ? marshal_data : cc->callback);
+
+ v_return = callback (data1, data2);
+
+ g_value_set_int64 (return_value, v_return);
+}
+
+static void
+gst_input_selector_marshal_VOID__OBJECT_INT64_INT64 (GClosure * closure,
+ GValue * return_value G_GNUC_UNUSED,
+ guint n_param_values,
+ const GValue * param_values,
+ gpointer invocation_hint G_GNUC_UNUSED, gpointer marshal_data)
+{
+ typedef void (*GMarshalFunc_VOID__OBJECT_INT64_INT64) (gpointer data1,
+ gpointer arg_1, gint64 arg_2, gint64 arg_3, gpointer data2);
+ register GMarshalFunc_VOID__OBJECT_INT64_INT64 callback;
+ register GCClosure *cc = (GCClosure *) closure;
+ register gpointer data1, data2;
+
+ g_return_if_fail (n_param_values == 4);
- return input_selector_type;
+ if (G_CCLOSURE_SWAP_DATA (closure)) {
+ data1 = closure->data;
+ data2 = g_value_peek_pointer (param_values + 0);
+ } else {
+ data1 = g_value_peek_pointer (param_values + 0);
+ data2 = closure->data;
+ }
+ callback =
+ (GMarshalFunc_VOID__OBJECT_INT64_INT64) (marshal_data ? marshal_data :
+ cc->callback);
+
+ callback (data1,
+ g_marshal_value_peek_object (param_values + 1),
+ g_marshal_value_peek_int64 (param_values + 2),
+ g_marshal_value_peek_int64 (param_values + 3), data2);
}
+#define _do_init(bla) \
+ GST_DEBUG_CATEGORY_INIT (input_selector_debug, \
+ "input-selector", 0, "An input stream selector element");
+
+GST_BOILERPLATE_FULL (GstInputSelector, gst_input_selector, GstElement,
+ GST_TYPE_ELEMENT, _do_init);
+
static void
-gst_input_selector_base_init (GstInputSelectorClass * klass)
+gst_input_selector_base_init (gpointer g_class)
{
- GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
+ GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
- gst_element_class_set_details (element_class, &gst_input_selector_details);
+ gst_element_class_set_details_simple (element_class, "Input selector",
+ "Generic", "N-to-1 input stream selector",
+ "Julien Moutte <julien@moutte.net>, "
+ "Jan Schmidt <thaytan@mad.scientist.com>, "
+ "Wim Taymans <wim.taymans@gmail.com>");
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_input_selector_sink_factory));
gst_element_class_add_pad_template (element_class,
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstElementClass *gstelement_class = GST_ELEMENT_CLASS (klass);
- parent_class = g_type_class_peek_parent (klass);
- gobject_class->set_property =
- GST_DEBUG_FUNCPTR (gst_input_selector_set_property);
- gobject_class->get_property =
- GST_DEBUG_FUNCPTR (gst_input_selector_get_property);
- g_object_class_install_property (gobject_class, PROP_ACTIVE_PAD,
- g_param_spec_string ("active-pad", "Active pad",
- "Name of the currently" " active sink pad", NULL, G_PARAM_READWRITE));
- g_object_class_install_property (gobject_class, PROP_SELECT_ALL,
- g_param_spec_boolean ("select-all", "Select all mode",
- "Forwards data from all input pads", FALSE, G_PARAM_READWRITE));
gobject_class->dispose = gst_input_selector_dispose;
- gstelement_class->request_new_pad = gst_input_selector_request_new_pad;
- gstelement_class->release_pad = gst_input_selector_release_pad;
- gstelement_class->change_state = gst_input_selector_change_state;
+
+ gobject_class->set_property = gst_input_selector_set_property;
+ gobject_class->get_property = gst_input_selector_get_property;
+
+ g_object_class_install_property (gobject_class, PROP_N_PADS,
+ g_param_spec_uint ("n-pads", "Number of Pads",
+ "The number of sink pads", 0, G_MAXUINT, 0,
+ G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
+
+ g_object_class_install_property (gobject_class, PROP_ACTIVE_PAD,
+ g_param_spec_object ("active-pad", "Active pad",
+ "The currently active sink pad", GST_TYPE_PAD,
+ G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstInputSelector::block:
* active pad or the current active pad never received data.
*/
gst_input_selector_signals[SIGNAL_BLOCK] =
- g_signal_new ("block", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST,
- G_STRUCT_OFFSET (GstInputSelectorClass, block),
- NULL, NULL, gst_selector_marshal_INT64__VOID, G_TYPE_INT64, 0);
+ g_signal_new ("block", G_TYPE_FROM_CLASS (klass),
+ G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
+ G_STRUCT_OFFSET (GstInputSelectorClass, block), NULL, NULL,
+ gst_input_selector_marshal_INT64__VOID, G_TYPE_INT64, 0);
/**
* GstInputSelector::switch:
* @inputselector: the #GstInputSelector
- * @pad: name of pad to switch to
+ * @pad: the pad to switch to
* @stop_time: running time at which to close the previous segment, or -1
* to use the running time of the previously active sink pad
* @start_time: running time at which to start the new segment, or -1 to
*
* If @pad is the same as the current active pad, the element will cancel any
* previous block without adjusting segments.
+ *
+ * <note><simpara>
+ * the signal changed from accepting the pad name to the pad object.
+ * </simpara></note>
+ *
+ * Since: 0.10.7
*/
gst_input_selector_signals[SIGNAL_SWITCH] =
g_signal_new ("switch", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GstInputSelectorClass, switch_),
- NULL, NULL, gst_selector_marshal_VOID__STRING_INT64_INT64,
- G_TYPE_NONE, 3, G_TYPE_STRING, G_TYPE_INT64, G_TYPE_INT64);
+ NULL, NULL, gst_input_selector_marshal_VOID__OBJECT_INT64_INT64,
+ G_TYPE_NONE, 3, GST_TYPE_PAD, G_TYPE_INT64, G_TYPE_INT64);
+
+ gstelement_class->request_new_pad = gst_input_selector_request_new_pad;
+ gstelement_class->release_pad = gst_input_selector_release_pad;
+ gstelement_class->change_state = gst_input_selector_change_state;
klass->block = GST_DEBUG_FUNCPTR (gst_input_selector_block);
+ /* note the underscore because switch is a keyword otherwise */
klass->switch_ = GST_DEBUG_FUNCPTR (gst_input_selector_switch);
}
static void
-gst_input_selector_init (GstInputSelector * sel)
+gst_input_selector_init (GstInputSelector * sel,
+ GstInputSelectorClass * g_class)
{
sel->srcpad = gst_pad_new ("src", GST_PAD_SRC);
- gst_pad_set_internal_link_function (sel->srcpad,
- GST_DEBUG_FUNCPTR (gst_input_selector_get_linked_pads));
+ gst_pad_set_iterate_internal_links_function (sel->srcpad,
+ GST_DEBUG_FUNCPTR (gst_selector_pad_iterate_linked_pads));
gst_pad_set_getcaps_function (sel->srcpad,
GST_DEBUG_FUNCPTR (gst_input_selector_getcaps));
+ gst_pad_set_query_function (sel->srcpad,
+ GST_DEBUG_FUNCPTR (gst_input_selector_query));
+ gst_pad_set_event_function (sel->srcpad,
+ GST_DEBUG_FUNCPTR (gst_input_selector_event));
gst_element_add_pad (GST_ELEMENT (sel), sel->srcpad);
/* sinkpad management */
sel->active_sinkpad = NULL;
- sel->nb_sinkpads = 0;
+ sel->padcount = 0;
gst_segment_init (&sel->segment, GST_FORMAT_UNDEFINED);
- sel->blocked_cond = g_cond_new ();
+ sel->lock = g_mutex_new ();
+ sel->cond = g_cond_new ();
sel->blocked = FALSE;
-
- sel->select_all = FALSE;
}
static void
gst_object_unref (sel->active_sinkpad);
sel->active_sinkpad = NULL;
}
-
- if (sel->blocked_cond) {
- g_cond_free (sel->blocked_cond);
- sel->blocked_cond = NULL;
+ if (sel->lock) {
+ g_mutex_free (sel->lock);
+ sel->lock = NULL;
+ }
+ if (sel->cond) {
+ g_cond_free (sel->cond);
+ sel->cond = NULL;
}
G_OBJECT_CLASS (parent_class)->dispose (object);
static gint64
gst_segment_get_timestamp (GstSegment * segment, gint64 running_time)
{
- return (running_time - segment->accum) * segment->abs_rate + segment->start;
+ if (running_time <= segment->accum)
+ return segment->start;
+ else
+ return (running_time - segment->accum) * segment->abs_rate + segment->start;
}
static void
static void
gst_segment_set_start (GstSegment * segment, gint64 running_time)
{
- segment->start = gst_segment_get_timestamp (segment, running_time);
+ gint64 new_start, duration;
+
+ new_start = gst_segment_get_timestamp (segment, running_time);
+
+ /* this is the duration we skipped */
+ duration = new_start - segment->start;
+ /* add the duration to the accumulated segment time */
+ segment->accum += duration;
+ /* move position in the segment */
+ segment->time += duration;
+ segment->start += duration;
}
-static void
+/* this function must be called with the SELECTOR_LOCK. It returns TRUE when the
+ * active pad changed. */
+static gboolean
gst_input_selector_set_active_pad (GstInputSelector * self,
- const gchar * pad_name, gint64 stop_time, gint64 start_time)
+ GstPad * pad, gint64 stop_time, gint64 start_time)
{
- GstPad *pad;
GstSelectorPad *old, *new;
GstPad **active_pad_p;
- if (strcmp (pad_name, "") != 0)
- pad = gst_element_get_pad (GST_ELEMENT (self), pad_name);
- else
- pad = NULL;
-
- GST_OBJECT_LOCK (self);
-
if (pad == self->active_sinkpad)
- goto done;
+ return FALSE;
old = GST_SELECTOR_PAD_CAST (self->active_sinkpad);
new = GST_SELECTOR_PAD_CAST (pad);
- if (old && old->active && !self->pending_stop && stop_time >= 0) {
+ GST_DEBUG_OBJECT (self, "setting active pad to %s:%s",
+ GST_DEBUG_PAD_NAME (new));
+
+ if (!GST_CLOCK_TIME_IS_VALID (stop_time) && old) {
+ /* no stop time given, get the latest running_time on the active pad to
+ * close and open the new segment */
+ stop_time = start_time = gst_selector_pad_get_running_time (old);
+ GST_DEBUG_OBJECT (self, "using start/stop of %" GST_TIME_FORMAT,
+ GST_TIME_ARGS (start_time));
+ }
+
+ if (old && old->active && !self->pending_close && stop_time >= 0) {
/* schedule a last_stop update if one isn't already scheduled, and a
segment has been pushed before. */
- memcpy (&self->pending_stop_segment, &old->segment,
- sizeof (self->pending_stop_segment));
- gst_segment_set_stop (&self->pending_stop_segment, stop_time);
- self->pending_stop = TRUE;
+ memcpy (&self->segment, &old->segment, sizeof (self->segment));
+
+ GST_DEBUG_OBJECT (self, "setting stop_time to %" GST_TIME_FORMAT,
+ GST_TIME_ARGS (stop_time));
+ gst_segment_set_stop (&self->segment, stop_time);
+ self->pending_close = TRUE;
}
+ if (old)
+ old->pushed = FALSE;
if (new && new->active && start_time >= 0) {
+ GST_DEBUG_OBJECT (self, "setting start_time to %" GST_TIME_FORMAT,
+ GST_TIME_ARGS (start_time));
/* schedule a new segment push */
gst_segment_set_start (&new->segment, start_time);
new->segment_pending = TRUE;
}
+ if (new)
+ new->pushed = FALSE;
active_pad_p = &self->active_sinkpad;
gst_object_replace ((GstObject **) active_pad_p, GST_OBJECT_CAST (pad));
GST_DEBUG_OBJECT (self, "New active pad is %" GST_PTR_FORMAT,
self->active_sinkpad);
-done:
- GST_OBJECT_UNLOCK (self);
-
- if (pad)
- gst_object_unref (pad);
+ return TRUE;
}
-
static void
gst_input_selector_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
switch (prop_id) {
case PROP_ACTIVE_PAD:
- gst_input_selector_set_active_pad (sel,
- g_value_get_string (value), GST_CLOCK_TIME_NONE, GST_CLOCK_TIME_NONE);
- break;
- case PROP_SELECT_ALL:
- sel->select_all = g_value_get_boolean (value);
+ {
+ GstPad *pad;
+
+ pad = g_value_get_object (value);
+
+ GST_INPUT_SELECTOR_LOCK (sel);
+ gst_input_selector_set_active_pad (sel, pad,
+ GST_CLOCK_TIME_NONE, GST_CLOCK_TIME_NONE);
+ GST_INPUT_SELECTOR_UNLOCK (sel);
break;
+ }
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
GstInputSelector *sel = GST_INPUT_SELECTOR (object);
switch (prop_id) {
- case PROP_ACTIVE_PAD:{
- GST_OBJECT_LOCK (object);
- if (sel->active_sinkpad != NULL) {
- g_value_take_string (value, gst_pad_get_name (sel->active_sinkpad));
- } else {
- g_value_set_string (value, "");
- }
- GST_OBJECT_UNLOCK (object);
+ case PROP_N_PADS:
+ GST_INPUT_SELECTOR_LOCK (object);
+ g_value_set_uint (value, sel->n_pads);
+ GST_INPUT_SELECTOR_UNLOCK (object);
break;
- }
- case PROP_SELECT_ALL:
- g_value_set_boolean (value, sel->select_all);
+ case PROP_ACTIVE_PAD:
+ GST_INPUT_SELECTOR_LOCK (object);
+ g_value_set_object (value, sel->active_sinkpad);
+ GST_INPUT_SELECTOR_UNLOCK (object);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
GstPad *otherpad = NULL;
sel = GST_INPUT_SELECTOR (gst_pad_get_parent (pad));
- GST_OBJECT_LOCK (sel);
+
+ GST_INPUT_SELECTOR_LOCK (sel);
if (pad == sel->srcpad)
otherpad = sel->active_sinkpad;
else if (pad == sel->active_sinkpad || !strict)
otherpad = sel->srcpad;
if (otherpad)
gst_object_ref (otherpad);
- GST_OBJECT_UNLOCK (sel);
+ GST_INPUT_SELECTOR_UNLOCK (sel);
+
gst_object_unref (sel);
+
return otherpad;
}
+static gboolean
+gst_input_selector_event (GstPad * pad, GstEvent * event)
+{
+ gboolean res = FALSE;
+ GstPad *otherpad;
+
+ otherpad = gst_input_selector_get_linked_pad (pad, TRUE);
+
+ if (otherpad) {
+ res = gst_pad_push_event (otherpad, event);
+
+ gst_object_unref (otherpad);
+ } else
+ gst_event_unref (event);
+ return res;
+}
+
+/* query on the srcpad. We override this function because by default it will
+ * only forward the query to one random sinkpad */
+static gboolean
+gst_input_selector_query (GstPad * pad, GstQuery * query)
+{
+ gboolean res = TRUE;
+ GstInputSelector *sel;
+ GstPad *otherpad;
+
+ sel = GST_INPUT_SELECTOR (gst_pad_get_parent (pad));
+
+ otherpad = gst_input_selector_get_linked_pad (pad, TRUE);
+
+ switch (GST_QUERY_TYPE (query)) {
+ case GST_QUERY_LATENCY:
+ {
+ GList *walk;
+ GstClockTime resmin, resmax;
+ gboolean reslive;
+
+ resmin = 0;
+ resmax = -1;
+ reslive = FALSE;
+
+ /* assume FALSE, we become TRUE if one query succeeds */
+ res = FALSE;
+
+ /* perform the query on all sinkpads and combine the results. We take the
+ * max of min and the min of max for the result latency. */
+ GST_INPUT_SELECTOR_LOCK (sel);
+ for (walk = GST_ELEMENT_CAST (sel)->sinkpads; walk;
+ walk = g_list_next (walk)) {
+ GstPad *sinkpad = GST_PAD_CAST (walk->data);
+
+ if (gst_pad_peer_query (sinkpad, query)) {
+ GstClockTime min, max;
+ gboolean live;
+
+ /* one query succeeded, we succeed too */
+ res = TRUE;
+
+ gst_query_parse_latency (query, &live, &min, &max);
+
+ GST_DEBUG_OBJECT (sinkpad,
+ "peer latency min %" GST_TIME_FORMAT ", max %" GST_TIME_FORMAT
+ ", live %d", GST_TIME_ARGS (min), GST_TIME_ARGS (max), live);
+
+ if (live) {
+ if (min > resmin)
+ resmin = min;
+ if (resmax == -1)
+ resmax = max;
+ else if (max < resmax)
+ resmax = max;
+ if (reslive == FALSE)
+ reslive = live;
+ }
+ }
+ }
+ GST_INPUT_SELECTOR_UNLOCK (sel);
+ if (res) {
+ gst_query_set_latency (query, reslive, resmin, resmax);
+
+ GST_DEBUG_OBJECT (sel,
+ "total latency min %" GST_TIME_FORMAT ", max %" GST_TIME_FORMAT
+ ", live %d", GST_TIME_ARGS (resmin), GST_TIME_ARGS (resmax),
+ reslive);
+ }
+
+ break;
+ }
+ default:
+ if (otherpad)
+ res = gst_pad_peer_query (otherpad, query);
+ break;
+ }
+ if (otherpad)
+ gst_object_unref (otherpad);
+ gst_object_unref (sel);
+
+ return res;
+}
+
static GstCaps *
gst_input_selector_getcaps (GstPad * pad)
{
GstCaps *caps;
parent = gst_object_get_parent (GST_OBJECT (pad));
- if (GST_INPUT_SELECTOR (parent)->select_all) {
- caps = gst_pad_proxy_getcaps (pad);
- goto done;
- }
otherpad = gst_input_selector_get_linked_pad (pad, FALSE);
+
if (!otherpad) {
- GST_DEBUG_OBJECT (parent,
- "Pad %s:%s not linked, returning ANY", GST_DEBUG_PAD_NAME (pad));
+ GST_DEBUG_OBJECT (pad, "Pad not linked, returning ANY");
caps = gst_caps_new_any ();
} else {
- GST_DEBUG_OBJECT (parent,
- "Pad %s:%s is linked (to %s:%s), returning peer caps",
- GST_DEBUG_PAD_NAME (pad), GST_DEBUG_PAD_NAME (otherpad));
+ GST_DEBUG_OBJECT (pad, "Pad is linked (to %s:%s), returning peer caps",
+ GST_DEBUG_PAD_NAME (otherpad));
/* if the peer has caps, use those. If the pad is not linked, this function
* returns NULL and we return ANY */
- if (!(caps = gst_pad_peer_get_caps (otherpad)))
+ if (!(caps = gst_pad_peer_get_caps_reffed (otherpad)))
caps = gst_caps_new_any ();
gst_object_unref (otherpad);
}
-done:
gst_object_unref (parent);
return caps;
}
/* check if the pad is the active sinkpad */
-static gboolean
+static inline gboolean
gst_input_selector_is_active_sinkpad (GstInputSelector * sel, GstPad * pad)
{
- GstSelectorPad *selpad;
gboolean res;
- selpad = GST_SELECTOR_PAD_CAST (pad);
-
- GST_OBJECT_LOCK (sel);
+ GST_INPUT_SELECTOR_LOCK (sel);
res = (pad == sel->active_sinkpad);
- GST_OBJECT_UNLOCK (sel);
+ GST_INPUT_SELECTOR_UNLOCK (sel);
return res;
}
-/* Get or create the active sinkpad */
+/* Get or create the active sinkpad, must be called with SELECTOR_LOCK */
static GstPad *
gst_input_selector_activate_sinkpad (GstInputSelector * sel, GstPad * pad)
{
selpad = GST_SELECTOR_PAD_CAST (pad);
- GST_OBJECT_LOCK (sel);
selpad->active = TRUE;
active_sinkpad = sel->active_sinkpad;
if (active_sinkpad == NULL) {
- /* first pad we get an alloc on becomes the activated pad by default */
+ /* first pad we get activity on becomes the activated pad by default */
+ if (sel->active_sinkpad)
+ gst_object_unref (sel->active_sinkpad);
active_sinkpad = sel->active_sinkpad = gst_object_ref (pad);
GST_DEBUG_OBJECT (sel, "Activating pad %s:%s", GST_DEBUG_PAD_NAME (pad));
}
- GST_OBJECT_UNLOCK (sel);
return active_sinkpad;
}
-static GList *
-gst_input_selector_get_linked_pads (GstPad * pad)
-{
- GstPad *otherpad;
-
- otherpad = gst_input_selector_get_linked_pad (pad, TRUE);
- if (!otherpad)
- return NULL;
- /* need to drop the ref, internal linked pads is not MT safe */
- gst_object_unref (otherpad);
- return g_list_append (NULL, otherpad);
-}
-
static GstPad *
gst_input_selector_request_new_pad (GstElement * element,
GstPadTemplate * templ, const gchar * unused)
gchar *name = NULL;
GstPad *sinkpad = NULL;
- sel = GST_INPUT_SELECTOR (element);
g_return_val_if_fail (templ->direction == GST_PAD_SINK, NULL);
- GST_LOG_OBJECT (sel, "Creating new pad %d", sel->nb_sinkpads);
- GST_OBJECT_LOCK (sel);
- name = g_strdup_printf ("sink%d", sel->nb_sinkpads++);
+
+ sel = GST_INPUT_SELECTOR (element);
+
+ GST_INPUT_SELECTOR_LOCK (sel);
+
+ GST_LOG_OBJECT (sel, "Creating new pad %d", sel->padcount);
+ name = g_strdup_printf ("sink%d", sel->padcount++);
sinkpad = g_object_new (GST_TYPE_SELECTOR_PAD,
"name", name, "direction", templ->direction, "template", templ, NULL);
g_free (name);
- GST_OBJECT_UNLOCK (sel);
+
+ sel->n_pads++;
gst_pad_set_event_function (sinkpad,
GST_DEBUG_FUNCPTR (gst_selector_pad_event));
gst_pad_set_getcaps_function (sinkpad,
GST_DEBUG_FUNCPTR (gst_selector_pad_getcaps));
+ gst_pad_set_acceptcaps_function (sinkpad,
+ GST_DEBUG_FUNCPTR (gst_selector_pad_acceptcaps));
gst_pad_set_chain_function (sinkpad,
GST_DEBUG_FUNCPTR (gst_selector_pad_chain));
- gst_pad_set_internal_link_function (sinkpad,
- GST_DEBUG_FUNCPTR (gst_selector_pad_get_linked_pads));
+ gst_pad_set_iterate_internal_links_function (sinkpad,
+ GST_DEBUG_FUNCPTR (gst_selector_pad_iterate_linked_pads));
gst_pad_set_bufferalloc_function (sinkpad,
GST_DEBUG_FUNCPTR (gst_selector_pad_bufferalloc));
gst_pad_set_active (sinkpad, TRUE);
gst_element_add_pad (GST_ELEMENT (sel), sinkpad);
+ GST_INPUT_SELECTOR_UNLOCK (sel);
+
return sinkpad;
}
sel = GST_INPUT_SELECTOR (element);
GST_LOG_OBJECT (sel, "Releasing pad %s:%s", GST_DEBUG_PAD_NAME (pad));
- GST_OBJECT_LOCK (sel);
+ GST_INPUT_SELECTOR_LOCK (sel);
/* if the pad was the active pad, makes us select a new one */
if (sel->active_sinkpad == pad) {
GST_DEBUG_OBJECT (sel, "Deactivating pad %s:%s", GST_DEBUG_PAD_NAME (pad));
+ gst_object_unref (sel->active_sinkpad);
sel->active_sinkpad = NULL;
}
- GST_OBJECT_UNLOCK (sel);
+ sel->n_pads--;
gst_pad_set_active (pad, FALSE);
gst_element_remove_pad (GST_ELEMENT (sel), pad);
+ GST_INPUT_SELECTOR_UNLOCK (sel);
+}
+
+static void
+gst_input_selector_reset (GstInputSelector * sel)
+{
+ GList *walk;
+
+ GST_INPUT_SELECTOR_LOCK (sel);
+ /* clear active pad */
+ if (sel->active_sinkpad) {
+ gst_object_unref (sel->active_sinkpad);
+ sel->active_sinkpad = NULL;
+ }
+ /* reset segment */
+ gst_segment_init (&sel->segment, GST_FORMAT_UNDEFINED);
+ sel->pending_close = FALSE;
+ /* reset each of our sinkpads state */
+ for (walk = GST_ELEMENT_CAST (sel)->sinkpads; walk; walk = g_list_next (walk)) {
+ GstSelectorPad *selpad = GST_SELECTOR_PAD_CAST (walk->data);
+
+ gst_selector_pad_reset (selpad);
+
+ if (selpad->tags) {
+ gst_tag_list_free (selpad->tags);
+ selpad->tags = NULL;
+ }
+ }
+ GST_INPUT_SELECTOR_UNLOCK (sel);
}
static GstStateChangeReturn
GstInputSelector *self = GST_INPUT_SELECTOR (element);
GstStateChangeReturn result;
+ switch (transition) {
+ case GST_STATE_CHANGE_READY_TO_PAUSED:
+ GST_INPUT_SELECTOR_LOCK (self);
+ self->blocked = FALSE;
+ self->flushing = FALSE;
+ GST_INPUT_SELECTOR_UNLOCK (self);
+ break;
+ case GST_STATE_CHANGE_PAUSED_TO_READY:
+ /* first unlock before we call the parent state change function, which
+ * tries to acquire the stream lock when going to ready. */
+ GST_INPUT_SELECTOR_LOCK (self);
+ self->blocked = FALSE;
+ self->flushing = TRUE;
+ GST_INPUT_SELECTOR_BROADCAST (self);
+ GST_INPUT_SELECTOR_UNLOCK (self);
+ break;
+ default:
+ break;
+ }
+
result = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
- if (transition == GST_STATE_CHANGE_PAUSED_TO_READY) {
- GST_OBJECT_LOCK (self);
- self->blocked = FALSE;
- g_cond_broadcast (self->blocked_cond);
- GST_OBJECT_UNLOCK (self);
+ switch (transition) {
+ case GST_STATE_CHANGE_PAUSED_TO_READY:
+ gst_input_selector_reset (self);
+ break;
+ default:
+ break;
}
return result;
gint64 ret = 0;
GstSelectorPad *spad;
- GST_OBJECT_LOCK (self);
+ GST_INPUT_SELECTOR_LOCK (self);
if (self->blocked)
GST_WARNING_OBJECT (self, "switch already blocked");
self->blocked = TRUE;
spad = GST_SELECTOR_PAD_CAST (self->active_sinkpad);
- if (self->active_sinkpad)
+ if (spad)
ret = gst_selector_pad_get_running_time (spad);
else
GST_DEBUG_OBJECT (self, "no active pad while blocking");
- GST_OBJECT_UNLOCK (self);
+ GST_INPUT_SELECTOR_UNLOCK (self);
return ret;
}
-static void
-gst_input_selector_push_pending_stop (GstInputSelector * self)
-{
- GstEvent *event = NULL;
-
- GST_OBJECT_LOCK (self);
-
- if (G_UNLIKELY (self->pending_stop)) {
- GstSegment *seg = &self->pending_stop_segment;
-
- event = gst_event_new_new_segment_full (TRUE, seg->rate,
- seg->applied_rate, seg->format, seg->start, seg->stop, seg->stop);
-
- self->pending_stop = FALSE;
- }
-
- GST_OBJECT_UNLOCK (self);
-
- if (event)
- gst_pad_push_event (self->srcpad, event);
-}
-
/* stop_time and start_time are running times */
static void
-gst_input_selector_switch (GstInputSelector * self, const gchar * pad_name,
+gst_input_selector_switch (GstInputSelector * self, GstPad * pad,
gint64 stop_time, gint64 start_time)
{
+ gboolean changed;
+
g_return_if_fail (self->blocked == TRUE);
- gst_input_selector_set_active_pad (self, pad_name, stop_time, start_time);
+ GST_INPUT_SELECTOR_LOCK (self);
+ changed =
+ gst_input_selector_set_active_pad (self, pad, stop_time, start_time);
- GST_OBJECT_LOCK (self);
self->blocked = FALSE;
- g_cond_broadcast (self->blocked_cond);
- GST_OBJECT_UNLOCK (self);
-}
+ GST_INPUT_SELECTOR_BROADCAST (self);
+ GST_INPUT_SELECTOR_UNLOCK (self);
-static gboolean
-gst_input_selector_check_eos (GstElement * selector)
-{
- GstIterator *it = gst_element_iterate_sink_pads (selector);
- GstIteratorResult ires;
- gpointer item;
- gboolean done = FALSE, is_eos = FALSE;
- GstSelectorPad *pad;
-
- while (!done) {
- ires = gst_iterator_next (it, &item);
- switch (ires) {
- case GST_ITERATOR_DONE:
- GST_INFO_OBJECT (selector, "all sink pads have eos");
- done = TRUE;
- is_eos = TRUE;
- break;
- case GST_ITERATOR_OK:
- pad = GST_SELECTOR_PAD_CAST (item);
- if (!pad->eos) {
- done = TRUE;
- }
- break;
- case GST_ITERATOR_RESYNC:
- gst_iterator_resync (it);
- break;
- default:
- done = TRUE;
- break;
- }
+ if (changed) {
+ NOTIFY_MUTEX_LOCK ();
+ g_object_notify (G_OBJECT (self), "active-pad");
+ NOTIFY_MUTEX_UNLOCK ();
}
- gst_iterator_free (it);
-
- return is_eos;
}
projects / platform / upstream / gstreamer.git / blobdiff