gstreamer1.0: Fix sticky events haven't been sent out when active track reach EOS

EOS event hasn't been sent to down-element. The resolution is block EOS event
of inactive pad, sending the event after the pad actived.

(From OE-Core rev: 19a2016bff489809af4852a20b9feebcc835a446)

Signed-off-by: Yuqing Zhu <b54851@freescale.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

2 files changed, 168 insertions, 0 deletions

diff --git a/meta/recipes-multimedia/gstreamer/gstreamer1.0/inputselector-sticky-events-haven-t-send-out-when-ac-1-4-1.patch b/meta/recipes-multimedia/gstreamer/gstreamer1.0/inputselector-sticky-events-haven-t-send-out-when-ac-1-4-1.patch
new file mode 100755
index 0000000000..f50ce6ff2e
--- /dev/null
+++ b/meta/recipes-multimedia/gstreamer/gstreamer1.0/inputselector-sticky-events-haven-t-send-out-when-ac-1-4-1.patch
@@ -0,0 +1,167 @@
+From 83bed90c306ed3185d48febf6441177d638f7341 Mon Sep 17 00:00:00 2001
+From: Song Bing <b06498@freescale.com>
+Date: Wed, 24 Dec 2014 10:13:51 +0800
+Subject: [PATCH] inputselector: sticky events haven't send out when active
+ track reach EOS
+
+EOS event hasn't been send to down-element. The resolution is block EOS event
+of inactive pad, send the event after the pad actived.
+
+https://bugzilla.gnome.org/show_bug.cgi?id=740949
+
+Upstream-Status: Backport [1.5.1]
+
+Signed-off-by: Song Bing <b06498@freescale.com>
+---
+ plugins/elements/gstinputselector.c |   58 ++++++++++++++++++++++++++---------
+ plugins/elements/gstinputselector.h |    1 +
+ 2 files changed, 45 insertions(+), 14 deletions(-)
+
+diff --git a/plugins/elements/gstinputselector.c b/plugins/elements/gstinputselector.c
+index fb50802..4461f7c 100644
+--- a/plugins/elements/gstinputselector.c
++++ b/plugins/elements/gstinputselector.c
+@@ -440,6 +440,17 @@ gst_selector_pad_iterate_linked_pads (GstPad * pad, GstObject * parent)
+ }
+ 
+ static gboolean
++gst_input_selector_eos_wait (GstInputSelector * self, GstSelectorPad * pad)
++{
++  while (!self->eos && !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 gboolean
+ gst_selector_pad_event (GstPad * pad, GstObject * parent, GstEvent * event)
+ {
+   gboolean res = TRUE;
+@@ -486,6 +497,7 @@ gst_selector_pad_event (GstPad * pad, GstObject * parent, GstEvent * event)
+     case GST_EVENT_FLUSH_START:
+       /* Unblock the pad if it's waiting */
+       selpad->flushing = TRUE;
++      sel->eos = FALSE;
+       GST_INPUT_SELECTOR_BROADCAST (sel);
+       break;
+     case GST_EVENT_FLUSH_STOP:
+@@ -523,21 +535,12 @@ gst_selector_pad_event (GstPad * pad, GstObject * parent, GstEvent * event)
+     case GST_EVENT_EOS:
+       selpad->eos = TRUE;
+ 
+-      if (forward) {
+-        selpad->eos_sent = TRUE;
+-      } else {
+-        GstSelectorPad *active_selpad;
+-
+-        /* 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
+-         */
+-        active_selpad = GST_SELECTOR_PAD (active_sinkpad);
+-        forward = (active_selpad->eos && !active_selpad->eos_sent);
+-        active_selpad->eos_sent = TRUE;
++      if (!forward) {
++        /* blocked until active the sind pad or flush */
++        gst_input_selector_eos_wait (sel, selpad);
++        forward = TRUE;
+       }
++      selpad->eos_sent = TRUE;
+       GST_DEBUG_OBJECT (pad, "received EOS");
+       break;
+     case GST_EVENT_GAP:{
+@@ -676,6 +679,12 @@ gst_input_selector_wait_running_time (GstInputSelector * sel,
+         gst_input_selector_activate_sinkpad (sel, GST_PAD_CAST (selpad));
+     active_selpad = GST_SELECTOR_PAD_CAST (active_sinkpad);
+ 
++    if (sel->eos) {
++      GST_DEBUG_OBJECT (sel, "Not waiting because inputselector reach EOS.");
++      GST_INPUT_SELECTOR_UNLOCK (sel);
++      return FALSE;
++    }
++
+     if (seg->format != GST_FORMAT_TIME) {
+       GST_DEBUG_OBJECT (selpad,
+           "Not waiting because we don't have a TIME segment");
+@@ -971,6 +980,12 @@ gst_selector_pad_chain (GstPad * pad, GstObject * parent, GstBuffer * buf)
+       GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf)));
+ 
+   GST_INPUT_SELECTOR_LOCK (sel);
++  if (sel->eos) {
++    GST_DEBUG_OBJECT (pad, "inputselector eos.");
++    GST_INPUT_SELECTOR_UNLOCK (sel);
++    goto eos;
++  }
++
+   /* wait or check for flushing */
+   if (gst_input_selector_wait (sel, selpad)) {
+     GST_INPUT_SELECTOR_UNLOCK (sel);
+@@ -1151,6 +1166,13 @@ flushing:
+     res = GST_FLOW_FLUSHING;
+     goto done;
+   }
++eos:
++  {
++    GST_DEBUG_OBJECT (pad, "We are eos, discard buffer %p", buf);
++    gst_buffer_unref (buf);
++    res = GST_FLOW_EOS;
++    goto done;
++  }
+ }
+ 
+ static void gst_input_selector_dispose (GObject * object);
+@@ -1309,6 +1331,7 @@ gst_input_selector_init (GstInputSelector * sel)
+   g_mutex_init (&sel->lock);
+   g_cond_init (&sel->cond);
+   sel->blocked = FALSE;
++  sel->eos = FALSE;
+ 
+   /* lets give a change for downstream to do something on
+    * active-pad change before we start pushing new buffers */
+@@ -1377,6 +1400,11 @@ gst_input_selector_set_active_pad (GstInputSelector * self, GstPad * pad)
+   GST_DEBUG_OBJECT (self, "New active pad is %" GST_PTR_FORMAT,
+       self->active_sinkpad);
+ 
++  if (old != new && new->eos && !new->eos_sent) {
++    self->eos = TRUE;
++    GST_INPUT_SELECTOR_BROADCAST (self);
++  }
++
+   return TRUE;
+ }
+ 
+@@ -1771,6 +1799,7 @@ gst_input_selector_change_state (GstElement * element,
+   switch (transition) {
+     case GST_STATE_CHANGE_READY_TO_PAUSED:
+       GST_INPUT_SELECTOR_LOCK (self);
++      self->eos = FALSE;
+       self->blocked = FALSE;
+       self->flushing = FALSE;
+       GST_INPUT_SELECTOR_UNLOCK (self);
+@@ -1779,6 +1808,7 @@ gst_input_selector_change_state (GstElement * element,
+       /* 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->eos = TRUE;
+       self->blocked = FALSE;
+       self->flushing = TRUE;
+       GST_INPUT_SELECTOR_BROADCAST (self);
+diff --git a/plugins/elements/gstinputselector.h b/plugins/elements/gstinputselector.h
+index 96c680f..9bf924f 100644
+--- a/plugins/elements/gstinputselector.h
++++ b/plugins/elements/gstinputselector.h
+@@ -77,6 +77,7 @@ struct _GstInputSelector {
+   GMutex lock;
+   GCond cond;
+   gboolean blocked;
++  gboolean eos;
+   gboolean flushing;
+ };
+ 
+-- 
+1.7.9.5
+
diff --git a/meta/recipes-multimedia/gstreamer/gstreamer1.0_1.4.5.bb b/meta/recipes-multimedia/gstreamer/gstreamer1.0_1.4.5.bb
index 0a2ce86343..902f79d60d 100644
--- a/meta/recipes-multimedia/gstreamer/gstreamer1.0_1.4.5.bb
+++ b/meta/recipes-multimedia/gstreamer/gstreamer1.0_1.4.5.bb
@@ -7,6 +7,7 @@ SRC_URI = " \
     http://gstreamer.freedesktop.org/src/gstreamer/gstreamer-${PV}.tar.xz \
     file://0001-Fix-crash-with-gst-inspect.patch \
     file://0001-gstinfo-Shorten-__FILE__-on-all-platforms.patch \
+    file://inputselector-sticky-events-haven-t-send-out-when-ac-1-4-1.patch \
 "
 SRC_URI[md5sum] = "88a9289c64a4950ebb4f544980234289"
 SRC_URI[sha256sum] = "40801aa7f979024526258a0e94707ba42b8ab6f7d2206e56adbc4433155cb0ae"