--- a/gst_plugins_base/gst/playback/gstinputselector.c Tue Aug 31 15:30:33 2010 +0300
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,1433 +0,0 @@
-/* GStreamer
- * 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>)
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-/**
- * SECTION:element-input-selector
- * @see_also: #GstOutputSelector
- *
- * Direct one out of N input streams to the output pad.
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include <string.h>
-
-#include "gstinputselector.h"
-#include "gstplay-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>");
-
-static GstStaticPadTemplate gst_input_selector_sink_factory =
-GST_STATIC_PAD_TEMPLATE ("sink%d",
- GST_PAD_SINK,
- GST_PAD_REQUEST,
- GST_STATIC_CAPS_ANY);
-
-static GstStaticPadTemplate gst_input_selector_src_factory =
-GST_STATIC_PAD_TEMPLATE ("src",
- GST_PAD_SRC,
- GST_PAD_ALWAYS,
- GST_STATIC_CAPS_ANY);
-
-enum
-{
- PROP_0,
- PROP_N_PADS,
- PROP_ACTIVE_PAD,
- PROP_SELECT_ALL,
- PROP_LAST
-};
-
-#define DEFAULT_PAD_ALWAYS_OK TRUE
-
-enum
-{
- PROP_PAD_0,
- PROP_PAD_RUNNING_TIME,
- PROP_PAD_TAGS,
- PROP_PAD_ACTIVE,
- PROP_PAD_ALWAYS_OK,
- PROP_PAD_LAST
-};
-
-enum
-{
- /* methods */
- SIGNAL_BLOCK,
- SIGNAL_SWITCH,
- LAST_SIGNAL
-};
-static guint gst_input_selector_signals[LAST_SIGNAL] = { 0 };
-
-static 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 gboolean gst_input_selector_check_eos (GstElement * selector);
-
-#define GST_TYPE_SELECTOR_PAD \
- (gst_selector_pad_get_type())
-#define GST_SELECTOR_PAD(obj) \
- (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_SELECTOR_PAD, GstSelectorPad))
-#define GST_SELECTOR_PAD_CLASS(klass) \
- (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_SELECTOR_PAD, GstSelectorPadClass))
-#define GST_IS_SELECTOR_PAD(obj) \
- (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_SELECTOR_PAD))
-#define GST_IS_SELECTOR_PAD_CLASS(klass) \
- (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_SELECTOR_PAD))
-#define GST_SELECTOR_PAD_CAST(obj) \
- ((GstSelectorPad *)(obj))
-
-typedef struct _GstSelectorPad GstSelectorPad;
-typedef struct _GstSelectorPadClass GstSelectorPadClass;
-
-struct _GstSelectorPad
-{
- GstPad parent;
-
- gboolean active; /* when buffer have passed the pad */
- gboolean eos; /* when EOS has been received */
- gboolean discont; /* after switching we create a discont */
- gboolean always_ok;
- GstSegment segment; /* the current segment on the pad */
- GstTagList *tags; /* last tags received on the pad */
-
- gboolean segment_pending;
-};
-
-struct _GstSelectorPadClass
-{
- GstPadClass parent;
-};
-
-static void gst_selector_pad_class_init (GstSelectorPadClass * klass);
-static void gst_selector_pad_init (GstSelectorPad * pad);
-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 gint64 gst_selector_pad_get_running_time (GstSelectorPad * pad);
-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 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);
-
-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, "GstPlaybin2SelectorPad",
- &selector_pad_info, 0);
- }
- return selector_pad_type;
-}
-
-static void
-gst_selector_pad_class_init (GstSelectorPadClass * klass)
-{
- GObjectClass *gobject_class;
-
- gobject_class = (GObjectClass *) klass;
-
- selector_pad_parent_class = g_type_class_peek_parent (klass);
-
- gobject_class->finalize = gst_selector_pad_finalize;
-
- gobject_class->get_property =
- GST_DEBUG_FUNCPTR (gst_selector_pad_get_property);
- gobject_class->set_property =
- GST_DEBUG_FUNCPTR (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_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_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_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));
-}
-
-static void
-gst_selector_pad_init (GstSelectorPad * pad)
-{
- pad->always_ok = DEFAULT_PAD_ALWAYS_OK;
- gst_selector_pad_reset (pad);
-}
-
-static void
-gst_selector_pad_finalize (GObject * object)
-{
- GstSelectorPad *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 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;
- }
-}
-
-static gint64
-gst_selector_pad_get_running_time (GstSelectorPad * pad)
-{
- gint64 ret = 0;
-
- GST_OBJECT_LOCK (pad);
- if (pad->active) {
- gint64 last_stop = pad->segment.last_stop;
-
- if (last_stop >= 0)
- 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,
- GST_TIME_ARGS (ret));
-
- return ret;
-}
-
-static void
-gst_selector_pad_reset (GstSelectorPad * pad)
-{
- GST_OBJECT_LOCK (pad);
- pad->active = FALSE;
- pad->eos = FALSE;
- pad->segment_pending = FALSE;
- pad->discont = 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)
-{
- 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 gboolean
-gst_selector_pad_event (GstPad * pad, GstEvent * event)
-{
- gboolean res = TRUE;
- gboolean forward = TRUE;
- 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 or if select_all
- * is enabled */
- if (pad != active_sinkpad && !sel->select_all)
- forward = FALSE;
- GST_INPUT_SELECTOR_UNLOCK (sel);
-
- if (prev_active_sinkpad != active_sinkpad && pad == active_sinkpad)
- g_object_notify (G_OBJECT (sel), "active-pad");
-
- switch (GST_EVENT_TYPE (event)) {
- case GST_EVENT_FLUSH_START:
- /* FIXME, flush out the waiter */
- 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:
- {
- gboolean update;
- GstFormat format;
- gdouble rate, arate;
- gint64 start, stop, time;
-
- gst_event_parse_new_segment_full (event, &update, &rate, &arate, &format,
- &start, &stop, &time);
-
- 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);
- GST_OBJECT_UNLOCK (selpad);
-
- /* If we aren't forwarding the event (because the pad is not the
- * active_sinkpad, and select_all is not set, then set the flag on the
- * 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;
- GST_DEBUG_OBJECT (pad, "received EOS");
- /* 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;
- }
- break;
- default:
- break;
- }
- if (forward) {
- GST_DEBUG_OBJECT (pad, "forwarding event");
- res = gst_pad_push_event (sel->srcpad, event);
- } else
- gst_event_unref (event);
-
- gst_object_unref (sel);
-
- return res;
-}
-
-static GstCaps *
-gst_selector_pad_getcaps (GstPad * pad)
-{
- GstInputSelector *sel;
- GstCaps *caps;
-
- 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);
- if (caps == NULL)
- caps = gst_caps_new_any ();
-
- gst_object_unref (sel);
-
- return caps;
-}
-
-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);
-
- GST_DEBUG_OBJECT (pad, "received alloc");
-
- GST_INPUT_SELECTOR_LOCK (sel);
- prev_active_sinkpad = sel->active_sinkpad;
- active_sinkpad = gst_input_selector_activate_sinkpad (sel, pad);
-
- if (pad != active_sinkpad)
- goto not_active;
-
- GST_INPUT_SELECTOR_UNLOCK (sel);
-
- if (prev_active_sinkpad != active_sinkpad && pad == active_sinkpad)
- g_object_notify (G_OBJECT (sel), "active-pad");
-
- result = gst_pad_alloc_buffer (sel->srcpad, offset, size, caps, buf);
-
-done:
- gst_object_unref (sel);
-
- return result;
-
- /* ERRORS */
-not_active:
- {
- GST_INPUT_SELECTOR_UNLOCK (sel);
-
- /* unselected pad, perform fallback alloc or return unlinked when
- * asked */
- GST_OBJECT_LOCK (selpad);
- if (selpad->always_ok) {
- 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);
-
- goto done;
- }
-}
-
-/* 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, GstPad * pad)
-{
- while (self->blocked && !self->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
-gst_selector_pad_chain (GstPad * pad, GstBuffer * buf)
-{
- GstInputSelector *sel;
- GstFlowReturn res;
- GstPad *active_sinkpad;
- GstPad *prev_active_sinkpad;
- GstSelectorPad *selpad;
- GstClockTime end_time, duration;
- GstSegment *seg;
- GstEvent *close_event = NULL, *start_event = NULL;
-
- sel = GST_INPUT_SELECTOR (gst_pad_get_parent (pad));
- selpad = GST_SELECTOR_PAD_CAST (pad);
- seg = &selpad->segment;
-
- GST_INPUT_SELECTOR_LOCK (sel);
- /* wait or check for flushing */
- if (gst_input_selector_wait (sel, pad))
- goto flushing;
-
- GST_DEBUG_OBJECT (pad, "getting active pad");
-
- prev_active_sinkpad = sel->active_sinkpad;
- active_sinkpad = gst_input_selector_activate_sinkpad (sel, pad);
-
- /* update the segment on the srcpad */
- 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 (pad, "received end time %" GST_TIME_FORMAT,
- GST_TIME_ARGS (end_time));
-
- GST_OBJECT_LOCK (pad);
- gst_segment_set_last_stop (seg, seg->format, end_time);
- GST_OBJECT_UNLOCK (pad);
- }
-
- /* Ignore buffers from pads except the selected one */
- if (pad != active_sinkpad)
- goto ignore;
-
- if (G_UNLIKELY (sel->pending_close)) {
- GstSegment *cseg = &sel->segment;
-
- GST_DEBUG_OBJECT (sel,
- "pushing 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 (G_UNLIKELY (selpad->segment_pending)) {
- GST_DEBUG_OBJECT (pad,
- "pushing 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)
- g_object_notify (G_OBJECT (sel), "active-pad");
-
- 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_metadata_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 (pad, "Forwarding buffer %p from pad %s:%s", buf,
- GST_DEBUG_PAD_NAME (pad));
-
- res = gst_pad_push (sel->srcpad, buf);
-
-done:
- gst_object_unref (sel);
- return res;
-
- /* dropped buffers */
-ignore:
- {
- 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);
-
- /* figure out what to return upstream */
- GST_OBJECT_LOCK (selpad);
- if (selpad->always_ok)
- 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_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_dispose (GObject * object);
-
-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 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,
- GstPad * pad, gint64 stop_time, gint64 start_time);
-
-static GstElementClass *parent_class = NULL;
-
-GType
-gst_input_selector_get_type (void)
-{
- 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,
- "GstPlaybin2InputSelector", &input_selector_info, 0);
- GST_DEBUG_CATEGORY_INIT (input_selector_debug,
- "playbin2-input-selector", 0, "Playbin2 input stream selector element");
- }
-
- return input_selector_type;
-}
-
-static void
-gst_input_selector_base_init (GstInputSelectorClass * klass)
-{
- GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
-
- gst_element_class_set_details (element_class, &gst_input_selector_details);
- 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,
- gst_static_pad_template_get (&gst_input_selector_src_factory));
-}
-
-static void
-gst_input_selector_class_init (GstInputSelectorClass * klass)
-{
- GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
- GstElementClass *gstelement_class = GST_ELEMENT_CLASS (klass);
-
- parent_class = g_type_class_peek_parent (klass);
-
- gobject_class->dispose = gst_input_selector_dispose;
-
- 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_N_PADS,
- g_param_spec_uint ("n-pads", "Number of Pads",
- "The number of sink pads", 0, G_MAXUINT, 0, G_PARAM_READABLE));
-
- 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_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));
-
- /**
- * GstInputSelector::block:
- * @inputselector: the #GstInputSelector
- *
- * Block all sink pads in preparation for a switch. Returns the stop time of
- * the current switch segment, as a running time, or 0 if there is no current
- * 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_SIGNAL_ACTION,
- G_STRUCT_OFFSET (GstInputSelectorClass, block), NULL, NULL,
- gst_play_marshal_INT64__VOID, G_TYPE_INT64, 0);
- /**
- * GstInputSelector::switch:
- * @inputselector: the #GstInputSelector
- * @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
- * use the running time of the newly active sink pad
- *
- * Switch to a new feed. The segment opened by the previously active pad, if
- * any, will be closed, and a new segment opened before data flows again.
- *
- * This signal must be emitted when the element has been blocked via the <link
- * linkend="GstInputSelector-block">block</link> signal.
- *
- * If you have a stream with only one switch element, such as an audio-only
- * stream, a stream switch should be performed by first emitting the block
- * signal, and then emitting the switch signal with -1 for the stop and start
- * time values.
- *
- * The intention of the @stop_time and @start_time arguments is to allow
- * multiple switch elements to switch and maintain stream synchronization.
- * When switching a stream with multiple feeds, you will need as many switch
- * elements as you have feeds. For example, a feed with audio and video will
- * have one switch element between the audio feeds and one for video.
- *
- * A switch over multiple switch elements should be performed as follows:
- * First, emit the <link linkend="GstInputSelector-block">block</link>
- * signal, collecting the returned values. The maximum running time returned
- * by block should then be used as the time at which to close the previous
- * segment.
- *
- * Then, query the running times of the new audio and video pads that you will
- * switch to. Naturally, these pads are on separate switch elements. Take the
- * minimum running time for those streams and use it for the time at which to
- * open the new segment.
- *
- * 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_play_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)
-{
- sel->srcpad = gst_pad_new ("src", GST_PAD_SRC);
- gst_pad_set_internal_link_function (sel->srcpad,
- GST_DEBUG_FUNCPTR (gst_selector_pad_get_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->padcount = 0;
- gst_segment_init (&sel->segment, GST_FORMAT_UNDEFINED);
-
- sel->lock = g_mutex_new ();
- sel->cond = g_cond_new ();
- sel->blocked = FALSE;
-
- sel->select_all = FALSE;
-}
-
-static void
-gst_input_selector_dispose (GObject * object)
-{
- GstInputSelector *sel = GST_INPUT_SELECTOR (object);
-
- if (sel->active_sinkpad) {
- gst_object_unref (sel->active_sinkpad);
- sel->active_sinkpad = 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);
-}
-
-/* Solve the following equation for B.timestamp, and set that as the segment
- * stop:
- * B.running_time = (B.timestamp - NS.start) / NS.abs_rate + NS.accum
- */
-static gint64
-gst_segment_get_timestamp (GstSegment * segment, gint64 running_time)
-{
- return (running_time - segment->accum) * segment->abs_rate + segment->start;
-}
-
-static void
-gst_segment_set_stop (GstSegment * segment, gint64 running_time)
-{
- segment->stop = gst_segment_get_timestamp (segment, running_time);
- segment->last_stop = -1;
-}
-
-static void
-gst_segment_set_start (GstSegment * segment, gint64 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;
-}
-
-/* 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,
- GstPad * pad, gint64 stop_time, gint64 start_time)
-{
- GstSelectorPad *old, *new;
- GstPad **active_pad_p;
-
- if (pad == self->active_sinkpad)
- return FALSE;
-
- old = GST_SELECTOR_PAD_CAST (self->active_sinkpad);
- new = GST_SELECTOR_PAD_CAST (pad);
-
- GST_DEBUG_OBJECT (self, "setting active pad to %s:%s",
- GST_DEBUG_PAD_NAME (new));
-
- if (stop_time == -1 && 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 %" G_GINT64_FORMAT,
- 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->segment, &old->segment, sizeof (self->segment));
-
- GST_DEBUG_OBJECT (self, "setting stop_time to %" G_GINT64_FORMAT,
- stop_time);
- gst_segment_set_stop (&self->segment, stop_time);
- self->pending_close = TRUE;
- }
-
- if (new && new->active && start_time >= 0) {
- GST_DEBUG_OBJECT (self, "setting start_time to %" G_GINT64_FORMAT,
- start_time);
- /* schedule a new segment push */
- gst_segment_set_start (&new->segment, start_time);
- new->segment_pending = TRUE;
- }
-
- 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);
-
- return TRUE;
-}
-
-static void
-gst_input_selector_set_property (GObject * object, guint prop_id,
- const GValue * value, GParamSpec * pspec)
-{
- GstInputSelector *sel = GST_INPUT_SELECTOR (object);
-
- switch (prop_id) {
- case PROP_ACTIVE_PAD:
- {
- 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;
- }
- case PROP_SELECT_ALL:
- GST_INPUT_SELECTOR_LOCK (object);
- sel->select_all = g_value_get_boolean (value);
- GST_INPUT_SELECTOR_UNLOCK (object);
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
- }
-}
-
-static void
-gst_input_selector_get_property (GObject * object, guint prop_id,
- GValue * value, GParamSpec * pspec)
-{
- GstInputSelector *sel = GST_INPUT_SELECTOR (object);
-
- switch (prop_id) {
- 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_ACTIVE_PAD:
- GST_INPUT_SELECTOR_LOCK (object);
- g_value_set_object (value, sel->active_sinkpad);
- GST_INPUT_SELECTOR_UNLOCK (object);
- break;
- case PROP_SELECT_ALL:
- GST_INPUT_SELECTOR_LOCK (object);
- g_value_set_boolean (value, sel->select_all);
- GST_INPUT_SELECTOR_UNLOCK (object);
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
- }
-}
-
-static GstPad *
-gst_input_selector_get_linked_pad (GstPad * pad, gboolean strict)
-{
- GstInputSelector *sel;
- GstPad *otherpad = NULL;
-
- sel = GST_INPUT_SELECTOR (gst_pad_get_parent (pad));
-
- 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_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)
-{
- GstPad *otherpad;
- GstObject *parent;
- GstCaps *caps;
-
- parent = gst_object_get_parent (GST_OBJECT (pad));
-
- otherpad = gst_input_selector_get_linked_pad (pad, FALSE);
-
- if (!otherpad) {
- if (GST_INPUT_SELECTOR (parent)->select_all) {
- GST_DEBUG_OBJECT (parent,
- "Pad %s:%s not linked, returning merge of caps",
- GST_DEBUG_PAD_NAME (pad));
- caps = gst_pad_proxy_getcaps (pad);
- } else {
- GST_DEBUG_OBJECT (parent,
- "Pad %s:%s not linked, returning ANY", GST_DEBUG_PAD_NAME (pad));
- 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));
- /* 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)))
- caps = gst_caps_new_any ();
- gst_object_unref (otherpad);
- }
-
- gst_object_unref (parent);
- return caps;
-}
-
-/* check if the pad is the active sinkpad */
-static gboolean
-gst_input_selector_is_active_sinkpad (GstInputSelector * sel, GstPad * pad)
-{
- GstSelectorPad *selpad;
- gboolean res;
-
- selpad = GST_SELECTOR_PAD_CAST (pad);
-
- GST_INPUT_SELECTOR_LOCK (sel);
- res = (pad == sel->active_sinkpad);
- GST_INPUT_SELECTOR_UNLOCK (sel);
-
- return res;
-}
-
-/* Get or create the active sinkpad, must be called with SELECTOR_LOCK */
-static GstPad *
-gst_input_selector_activate_sinkpad (GstInputSelector * sel, GstPad * pad)
-{
- GstPad *active_sinkpad;
- GstSelectorPad *selpad;
-
- selpad = GST_SELECTOR_PAD_CAST (pad);
-
- selpad->active = TRUE;
- active_sinkpad = sel->active_sinkpad;
- if (active_sinkpad == NULL || sel->select_all) {
- /* first pad we get activity on becomes the activated pad by default, if we
- * select all, we also remember the last used pad. */
- 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));
- }
-
- return active_sinkpad;
-}
-
-static GstPad *
-gst_input_selector_request_new_pad (GstElement * element,
- GstPadTemplate * templ, const gchar * unused)
-{
- GstInputSelector *sel;
- gchar *name = NULL;
- GstPad *sinkpad = NULL;
-
- g_return_val_if_fail (templ->direction == GST_PAD_SINK, NULL);
-
- 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);
-
- 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_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_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;
-}
-
-static void
-gst_input_selector_release_pad (GstElement * element, GstPad * pad)
-{
- GstInputSelector *sel;
-
- sel = GST_INPUT_SELECTOR (element);
- GST_LOG_OBJECT (sel, "Releasing pad %s:%s", GST_DEBUG_PAD_NAME (pad));
-
- 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;
- }
- 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
-gst_input_selector_change_state (GstElement * element,
- GstStateChange transition)
-{
- 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);
-
- switch (transition) {
- case GST_STATE_CHANGE_PAUSED_TO_READY:
- gst_input_selector_reset (self);
- break;
- default:
- break;
- }
-
- return result;
-}
-
-static gint64
-gst_input_selector_block (GstInputSelector * self)
-{
- gint64 ret = 0;
- GstSelectorPad *spad;
-
- 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 (spad)
- ret = gst_selector_pad_get_running_time (spad);
- else
- GST_DEBUG_OBJECT (self, "no active pad while blocking");
-
- GST_INPUT_SELECTOR_UNLOCK (self);
-
- return ret;
-}
-
-/* stop_time and start_time are running times */
-static void
-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_LOCK (self);
- changed =
- gst_input_selector_set_active_pad (self, pad, stop_time, start_time);
-
- self->blocked = FALSE;
- GST_INPUT_SELECTOR_BROADCAST (self);
- GST_INPUT_SELECTOR_UNLOCK (self);
-
- if (changed)
- g_object_notify (G_OBJECT (self), "active-pad");
-}
-
-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;
- }
- gst_object_unref (pad);
- break;
- case GST_ITERATOR_RESYNC:
- gst_iterator_resync (it);
- break;
- default:
- done = TRUE;
- break;
- }
- }
- gst_iterator_free (it);
-
- return is_eos;
-}