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source: Remove cruft code to seek sources

Browse source 
We now seek on ready and thus do not need to do magic trying to seek
the source as soon as possible as we now do it even sooner than soon.

Co-Authored by: Thibault Saunier <tsaunier@gnome.org>
This commit is contained in:
Mathieu Duponchelle 2014-07-15 14:59:54 +02:00 committed by Thibault Saunier
parent 4e84240630
commit bdb74c5161
4 changed files with 39 additions and 177 deletions
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11
gnl/gnlcomposition.c
View file

@ -571,6 +571,7 @@ remove_object_handler (GnlComposition * comp, GnlObject * object)
{
g_return_val_if_fail (GNL_IS_OBJECT (object), FALSE);
object->in_composition = FALSE;
_add_remove_object_gsource (comp, object);
return TRUE;
@ -622,6 +623,7 @@ add_object_handler (GnlComposition * comp, GnlObject * object)
{
g_return_val_if_fail (GNL_IS_OBJECT (object), FALSE);
object->in_composition = TRUE;
_add_add_object_gsource (comp, object);
return TRUE;
@ -1206,7 +1208,8 @@ update_operations_base_time (GnlComposition * comp, gboolean reverse)
/* WITH OBJECTS LOCK TAKEN */
static gboolean
_seek_current_stack (GnlComposition * comp, GstEvent * event, gboolean flush_downstream)
_seek_current_stack (GnlComposition * comp, GstEvent * event,
gboolean flush_downstream)
{
gboolean res;
GnlCompositionPrivate *priv = comp->priv;
@ -1255,7 +1258,8 @@ seek_handling (GnlComposition * comp, GnlUpdateStackReason update_stack_reason)
_set_real_eos_seqnum_from_seek (comp, toplevel_seek);
_seek_current_stack (comp, toplevel_seek, _flush_downstream (update_stack_reason));
_seek_current_stack (comp, toplevel_seek,
_flush_downstream (update_stack_reason));
update_operations_base_time (comp, !(comp->priv->segment->rate >= 0.0));
}
@ -2722,7 +2726,8 @@ update_pipeline (GnlComposition * comp, GstClockTime currenttime,
if (!samestack)
return _activate_new_stack (comp);
else
return _seek_current_stack (comp, toplevel_seek, _flush_downstream (update_reason));
return _seek_current_stack (comp, toplevel_seek,
_flush_downstream (update_reason));
}
static gboolean

2
gnl/gnlobject.h
View file

@ -125,6 +125,8 @@ struct _GnlObject
gint64 segment_start;
gint64 segment_stop;
gboolean in_composition;
/* the seqnum we want, will be conciderd as real one right after
* a new segment */
gint wanted_seqnum;

201
gnl/gnlsource.c
View file

@ -51,31 +51,20 @@ struct _GnlSourcePrivate
gboolean dispose_has_run;
gboolean dynamicpads; /* TRUE if the controlled element has dynamic pads */
GstEvent *event; /* queued event */
gulong padremovedid; /* signal handler for element pad-removed signal */
gulong padaddedid; /* signal handler for element pad-added signal */
gint probeid; /* source pad probe id */
gboolean pendingblock; /* We have a pending pad_block */
gboolean is_blocked; /* We already got blocked */
GstPad *ghostedpad; /* Pad (to be) ghosted */
GstPad *staticpad; /* The only pad. We keep an extra ref */
gboolean got_seeked;
};
static gboolean gnl_source_prepare (GnlObject * object);
static gboolean gnl_source_cleanup (GnlObject * object);
static gboolean gnl_source_add_element (GstBin * bin, GstElement * element);
static gboolean gnl_source_remove_element (GstBin * bin, GstElement * element);
static void gnl_source_dispose (GObject * object);
static GstPadProbeReturn
pad_blocked_cb (GstPad * pad, GstPadProbeInfo * info, GnlSource * source);
static gboolean
gnl_source_control_element_func (GnlSource * source, GstElement * element);
@ -104,7 +93,6 @@ gnl_source_class_init (GnlSourceClass * klass)
klass->control_element = GST_DEBUG_FUNCPTR (gnl_source_control_element_func);
gnlobject_class->prepare = GST_DEBUG_FUNCPTR (gnl_source_prepare);
gnlobject_class->cleanup = GST_DEBUG_FUNCPTR (gnl_source_cleanup);
gstbin_class->add_element = GST_DEBUG_FUNCPTR (gnl_source_add_element);
gstbin_class->remove_element = GST_DEBUG_FUNCPTR (gnl_source_remove_element);
@ -147,9 +135,6 @@ gnl_source_dispose (GObject * object)
}
priv->dispose_has_run = TRUE;
if (priv->event)
gst_event_unref (priv->event);
if (priv->ghostedpad)
gnl_object_ghost_pad_set_target (gnlobject, gnlobject->srcpad, NULL);
@ -161,20 +146,6 @@ gnl_source_dispose (GObject * object)
G_OBJECT_CLASS (parent_class)->dispose (object);
}
static void
_remove_pad_probe (GnlSource * source, GstPad * pad)
{
gint tmp_probe_id;
tmp_probe_id = source->priv->probeid;
if (g_atomic_int_compare_and_exchange (&source->priv->probeid,
tmp_probe_id, 0)) {
if (tmp_probe_id)
gst_pad_remove_probe (pad, tmp_probe_id);
}
}
static void
element_pad_added_cb (GstElement * element G_GNUC_UNUSED, GstPad * pad,
GnlSource * source)
@ -185,10 +156,11 @@ element_pad_added_cb (GstElement * element G_GNUC_UNUSED, GstPad * pad,
GST_DEBUG_OBJECT (source, "pad %s:%s", GST_DEBUG_PAD_NAME (pad));
if (priv->pendingblock) {
GST_WARNING_OBJECT (source,
"We already have (pending) ghost-ed a valid source pad (srcpad:%s:%s, pendingblock:%d",
GST_DEBUG_PAD_NAME (gnlobject->srcpad), priv->pendingblock);
if (priv->ghostedpad) {
GST_DEBUG_OBJECT (source,
"We already have a target, not doing anything with %s:%s",
GST_DEBUG_PAD_NAME (pad));
return;
}
@ -201,18 +173,11 @@ element_pad_added_cb (GstElement * element G_GNUC_UNUSED, GstPad * pad,
}
gst_caps_unref (srccaps);
GST_DEBUG_OBJECT (pad, "valid pad, about to add event probe and pad block");
priv->ghostedpad = pad;
GST_DEBUG_OBJECT (gnlobject, "SET target %" GST_PTR_FORMAT, pad);
gnl_object_ghost_pad_set_target (gnlobject, gnlobject->srcpad, pad);
priv->probeid = gst_pad_add_probe (pad, GST_PAD_PROBE_TYPE_BLOCK_DOWNSTREAM,
(GstPadProbeCallback) pad_blocked_cb, source, NULL);
if (priv->probeid == 0)
GST_WARNING_OBJECT (source, "Couldn't set Async pad blocking");
else {
priv->ghostedpad = pad;
priv->pendingblock = TRUE;
}
GST_DEBUG_OBJECT (source, "Done handling pad %s:%s",
GST_DEBUG_OBJECT (source, "Using pad pad %s:%s as a target now!",
GST_DEBUG_PAD_NAME (pad));
}
@ -232,12 +197,8 @@ element_pad_removed_cb (GstElement * element G_GNUC_UNUSED, GstPad * pad,
GST_DEBUG_OBJECT (source, "Clearing up ghostpad");
priv->is_blocked = FALSE;
_remove_pad_probe (source, pad);
gnl_object_ghost_pad_set_target (GNL_OBJECT (source), gnlobject->srcpad,
NULL);
priv->pendingblock = FALSE;
priv->ghostedpad = NULL;
} else {
GST_DEBUG_OBJECT (source, "The removed pad is NOT our controlled pad");
@ -293,66 +254,6 @@ get_valid_src_pad (GnlSource * source, GstElement * element, GstPad ** pad)
return res;
}
static gpointer
ghost_seek_pad (GnlSource * source)
{
GnlSourcePrivate *priv = source->priv;
GstPad *pad = priv->ghostedpad;
GnlObject *gnlobject = (GnlObject *) source;
priv->got_seeked = TRUE;
if (!pad)
goto beach;
GST_DEBUG_OBJECT (source, "ghosting %s:%s", GST_DEBUG_PAD_NAME (pad));
gnl_object_ghost_pad_set_target (gnlobject, gnlobject->srcpad, pad);
/*FIXME : do that when going to PAUSED */
gst_pad_set_active (gnlobject->srcpad, TRUE);
GST_DEBUG_OBJECT (source, "about to unblock %s:%s", GST_DEBUG_PAD_NAME (pad));
/* FIXME: Kill that code please! */
if (g_strcmp0 (GST_OBJECT_NAME (GST_OBJECT_PARENT (source)), "current-bin")
&& priv->event) {
if (!(gst_pad_send_event (gnlobject->srcpad, priv->event)))
GST_ELEMENT_ERROR (source, RESOURCE, SEEK,
(NULL), ("Sending initial seek to upstream element failed"));
else
GST_ERROR_OBJECT (source, "queued seek sent");
priv->event = NULL;
}
priv->is_blocked = FALSE;
_remove_pad_probe (source, pad);
gst_element_no_more_pads (GST_ELEMENT (source));
priv->pendingblock = FALSE;
beach:
return NULL;
}
static GstPadProbeReturn
pad_blocked_cb (GstPad * pad, GstPadProbeInfo * info, GnlSource * source)
{
GST_DEBUG_OBJECT (pad, "probe callback");
if (!source->priv->got_seeked && !source->priv->is_blocked) {
GThread *lthread;
source->priv->is_blocked = TRUE;
GST_DEBUG_OBJECT (pad, "starting thread to call ghost_seek_pad");
lthread =
g_thread_new ("gnlsourceseek", (GThreadFunc) ghost_seek_pad, source);
g_thread_unref (lthread);
}
return GST_PAD_PROBE_OK;
}
/*
* has_dynamic_pads
* Returns TRUE if the element has only dynamic pads.
@ -399,8 +300,8 @@ gnl_source_control_element_func (GnlSource * source, GstElement * element)
if (get_valid_src_pad (source, source->element, &pad)) {
priv->staticpad = pad;
GST_DEBUG_OBJECT (source,
"There is a valid source pad, we consider the object as NOT having dynamic pads");
gnl_object_ghost_pad_set_target (GNL_OBJECT (source),
GNL_OBJECT_SRC (source), pad);
priv->dynamicpads = FALSE;
} else {
priv->dynamicpads = has_dynamic_srcpads (element);
@ -462,13 +363,6 @@ gnl_source_remove_element (GstBin * bin, GstElement * element)
if (pret) {
gnl_object_ghost_pad_set_target (GNL_OBJECT (source), gnlobject->srcpad,
NULL);
priv->got_seeked = FALSE;
/* discard events */
if (priv->event) {
gst_event_unref (priv->event);
priv->event = NULL;
}
/* remove signal handlers */
if (priv->padremovedid) {
@ -490,6 +384,7 @@ gnl_source_remove_element (GstBin * bin, GstElement * element)
static gboolean
gnl_source_prepare (GnlObject * object)
{
GstPad *pad;
GnlSource *source = GNL_SOURCE (object);
GnlSourcePrivate *priv = source->priv;
GstElement *parent =
@ -503,68 +398,28 @@ gnl_source_prepare (GnlObject * object)
return FALSE;
}
if (object->in_composition == FALSE) {
gst_element_send_event (GST_ELEMENT_CAST (parent),
gst_event_new_seek (1.0, GST_FORMAT_TIME,
GST_SEEK_FLAG_ACCURATE | GST_SEEK_FLAG_FLUSH,
GST_SEEK_TYPE_SET, object->start, GST_SEEK_TYPE_SET, object->stop));
}
GST_LOG_OBJECT (source, "srcpad:%p, dynamicpads:%d",
object->srcpad, priv->dynamicpads);
if (!(priv->got_seeked) && !priv->pendingblock) {
GstPad *pad;
GST_LOG_OBJECT (source, "no ghostpad and no dynamic pads");
/* Do an async block on valid source pad */
if (!priv->staticpad
&& !(get_valid_src_pad (source, source->element, &pad))) {
GST_DEBUG_OBJECT (source, "Couldn't find a valid source pad");
} else {
if (priv->staticpad)
pad = gst_object_ref (priv->staticpad);
GST_LOG_OBJECT (source, "Trying to async block source pad %s:%s",
GST_DEBUG_PAD_NAME (pad));
priv->ghostedpad = pad;
priv->probeid = gst_pad_add_probe (pad,
GST_PAD_PROBE_TYPE_BLOCK_DOWNSTREAM,
(GstPadProbeCallback) pad_blocked_cb, source, NULL);
gst_object_unref (pad);
}
}
if (!GNL_IS_COMPOSITION (parent)) {
/* Figure out if we're in a composition */
if (source->priv->event)
gst_event_unref (source->priv->event);
GST_DEBUG_OBJECT (object, "Creating initial seek");
source->priv->event = gst_event_new_seek (1.0, GST_FORMAT_TIME,
GST_SEEK_FLAG_ACCURATE | GST_SEEK_FLAG_FLUSH,
GST_SEEK_TYPE_SET, object->start, GST_SEEK_TYPE_SET, object->stop);
if (!priv->staticpad && !(get_valid_src_pad (source, source->element, &pad))) {
GST_DEBUG_OBJECT (source, "Couldn't find a valid source pad");
} else {
if (priv->staticpad)
pad = gst_object_ref (priv->staticpad);
GST_LOG_OBJECT (source, "Trying to async block source pad %s:%s",
GST_DEBUG_PAD_NAME (pad));
priv->ghostedpad = pad;
gst_object_unref (pad);
}
gst_object_unref (parent);
return TRUE;
}
static gboolean
gnl_source_cleanup (GnlObject * object)
{
GnlSource *source = GNL_SOURCE (object);
GnlSourcePrivate *priv = source->priv;
/* FIXME : should just be ghostedpad */
GstPad *target = gst_ghost_pad_get_target ((GstGhostPad *) object->srcpad);
if (target) {
_remove_pad_probe (source, target);
gst_object_unref (target);
}
gnl_object_ghost_pad_set_target (GNL_OBJECT (source), object->srcpad, NULL);
priv->got_seeked = FALSE;
priv->ghostedpad = NULL;
priv->is_blocked = FALSE;
priv->pendingblock = FALSE;
return TRUE;
}

2
tests/check/gnl/common.c
View file

@ -148,7 +148,7 @@ static GstPadProbeReturn
sinkpad_buffer_probe (GstPad * sinkpad, GstBuffer * buffer,
CollectStructure * collect)
{
GST_DEBUG_OBJECT (sinkpad, "buffer:%p (%" GST_TIME_FORMAT ") , collect:%p",
GST_LOG_OBJECT (sinkpad, "buffer:%p (%" GST_TIME_FORMAT ") , collect:%p",
buffer, GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buffer)), collect);
fail_if (!collect->gotsegment,
"Received a buffer without a preceding segment");