diff --git a/subprojects/gst-plugins-base/gst/playback/gstdecodebin2.c b/subprojects/gst-plugins-base/gst/playback/gstdecodebin2.c
index 7dcad5411a..2e8c943118 100644
--- a/subprojects/gst-plugins-base/gst/playback/gstdecodebin2.c
+++ b/subprojects/gst-plugins-base/gst/playback/gstdecodebin2.c
@@ -1803,7 +1803,7 @@ analyze_new_pad (GstDecodeBin * dbin, GstElement * src, GstPad * pad,
       capsfilter = delem->capsfilter =
           gst_element_factory_make ("capsfilter", NULL);
     } else {
-      delem = g_slice_new0 (GstDecodeElement);
+      delem = g_new0 (GstDecodeElement, 1);
       capsfilter = delem->element =
           gst_element_factory_make ("capsfilter", NULL);
       delem->capsfilter = NULL;
@@ -1936,7 +1936,7 @@ setup_caps_delay:
     CHAIN_MUTEX_LOCK (chain);
     GST_LOG_OBJECT (dbin, "Chain %p has now %d dynamic pads", chain,
         g_list_length (chain->pending_pads));
-    ppad = g_slice_new0 (GstPendingPad);
+    ppad = g_new0 (GstPendingPad, 1);
     ppad->pad = gst_object_ref (pad);
     ppad->chain = chain;
     ppad->event_probe_id =
@@ -2403,7 +2403,7 @@ connect_pad (GstDecodeBin * dbin, GstElement * src, GstDecodePad * dpad,
     GST_LOG_OBJECT (dbin, "linked on pad %s:%s", GST_DEBUG_PAD_NAME (pad));
 
     CHAIN_MUTEX_LOCK (chain);
-    delem = g_slice_new0 (GstDecodeElement);
+    delem = g_new0 (GstDecodeElement, 1);
     delem->element = gst_object_ref (element);
     delem->capsfilter = NULL;
     chain->elements = g_list_prepend (chain->elements, delem);
@@ -2620,7 +2620,7 @@ connect_pad (GstDecodeBin * dbin, GstElement * src, GstDecodePad * dpad,
         gst_element_set_state (tmp, GST_STATE_NULL);
 
         gst_object_unref (tmp);
-        g_slice_free (GstDecodeElement, dtmp);
+        g_free (dtmp);
 
         chain->elements = g_list_delete_link (chain->elements, chain->elements);
       } while (tmp != element);
@@ -3364,7 +3364,7 @@ gst_decode_chain_unref (GstDecodeChain * chain)
 {
   if (g_atomic_int_dec_and_test (&chain->refs)) {
     g_mutex_clear (&chain->lock);
-    g_slice_free (GstDecodeChain, chain);
+    g_free (chain);
   }
 }
 
@@ -3463,7 +3463,7 @@ gst_decode_chain_free_internal (GstDecodeChain * chain, gboolean hide)
       gst_object_unref (element);
       l->data = NULL;
 
-      g_slice_free (GstDecodeElement, delem);
+      g_free (delem);
     }
   }
   if (!hide) {
@@ -3542,7 +3542,7 @@ static GstDecodeChain *
 gst_decode_chain_new (GstDecodeBin * dbin, GstDecodeGroup * parent,
     GstPad * pad)
 {
-  GstDecodeChain *chain = g_slice_new0 (GstDecodeChain);
+  GstDecodeChain *chain = g_new0 (GstDecodeChain, 1);
 
   GST_DEBUG_OBJECT (dbin, "Creating new chain %p with parent group %p", chain,
       parent);
@@ -3666,7 +3666,7 @@ gst_decode_group_free_internal (GstDecodeGroup * group, gboolean hide)
   GST_DEBUG_OBJECT (group->dbin, "%s group %p", (hide ? "Hid" : "Freed"),
       group);
   if (!hide)
-    g_slice_free (GstDecodeGroup, group);
+    g_free (group);
 }
 
 /* gst_decode_group_free:
@@ -3846,7 +3846,7 @@ decodebin_set_queue_size_full (GstDecodeBin * dbin, GstElement * multiqueue,
 static GstDecodeGroup *
 gst_decode_group_new (GstDecodeBin * dbin, GstDecodeChain * parent)
 {
-  GstDecodeGroup *group = g_slice_new0 (GstDecodeGroup);
+  GstDecodeGroup *group = g_new0 (GstDecodeGroup, 1);
   GstElement *mq;
   gboolean seekable;
 
@@ -3889,7 +3889,7 @@ missing_multiqueue:
         gst_missing_element_message_new (GST_ELEMENT_CAST (dbin),
             "multiqueue"));
     GST_ELEMENT_ERROR (dbin, CORE, MISSING_PLUGIN, (NULL), ("no multiqueue!"));
-    g_slice_free (GstDecodeGroup, group);
+    g_free (group);
     return NULL;
   }
 }
@@ -5231,7 +5231,7 @@ gst_pending_pad_free (GstPendingPad * ppad)
   if (ppad->notify_caps_id)
     g_signal_handler_disconnect (ppad->pad, ppad->notify_caps_id);
   gst_object_unref (ppad->pad);
-  g_slice_free (GstPendingPad, ppad);
+  g_free (ppad);
 }
 
 /*****
diff --git a/subprojects/gst-plugins-base/gst/playback/gstparsebin.c b/subprojects/gst-plugins-base/gst/playback/gstparsebin.c
index 9ea753b5bd..e384f9dc9c 100644
--- a/subprojects/gst-plugins-base/gst/playback/gstparsebin.c
+++ b/subprojects/gst-plugins-base/gst/playback/gstparsebin.c
@@ -1586,7 +1586,7 @@ setup_caps_delay:
     CHAIN_MUTEX_LOCK (chain);
     GST_LOG_OBJECT (parsebin, "Chain %p has now %d dynamic pads", chain,
         g_list_length (chain->pending_pads));
-    ppad = g_slice_new0 (GstPendingPad);
+    ppad = g_new0 (GstPendingPad, 1);
     ppad->pad = gst_object_ref (pad);
     ppad->chain = chain;
     ppad->event_probe_id =
@@ -2022,7 +2022,7 @@ connect_pad (GstParseBin * parsebin, GstElement * src, GstParsePad * parsepad,
     GST_LOG_OBJECT (parsebin, "linked on pad %s:%s", GST_DEBUG_PAD_NAME (pad));
 
     CHAIN_MUTEX_LOCK (chain);
-    pelem = g_slice_new0 (GstParseElement);
+    pelem = g_new0 (GstParseElement, 1);
     pelem->element = gst_object_ref (element);
     pelem->capsfilter = NULL;
     chain->elements = g_list_prepend (chain->elements, pelem);
@@ -2191,7 +2191,7 @@ connect_pad (GstParseBin * parsebin, GstElement * src, GstParsePad * parsepad,
         gst_element_set_state (tmp, GST_STATE_NULL);
 
         gst_object_unref (tmp);
-        g_slice_free (GstParseElement, dtmp);
+        g_free (dtmp);
 
         chain->elements = g_list_delete_link (chain->elements, chain->elements);
       } while (tmp != element);
@@ -2771,7 +2771,7 @@ gst_parse_chain_free_internal (GstParseChain * chain, gboolean hide)
       gst_object_unref (element);
       l->data = NULL;
 
-      g_slice_free (GstParseElement, pelem);
+      g_free (pelem);
     }
   }
   if (!hide) {
@@ -2830,7 +2830,7 @@ gst_parse_chain_free_internal (GstParseChain * chain, gboolean hide)
 
   if (!hide) {
     g_mutex_clear (&chain->lock);
-    g_slice_free (GstParseChain, chain);
+    g_free (chain);
   }
 }
 
@@ -2859,7 +2859,7 @@ static GstParseChain *
 gst_parse_chain_new (GstParseBin * parsebin, GstParseGroup * parent,
     GstPad * pad, GstCaps * start_caps)
 {
-  GstParseChain *chain = g_slice_new0 (GstParseChain);
+  GstParseChain *chain = g_new0 (GstParseChain, 1);
 
   GST_DEBUG_OBJECT (parsebin, "Creating new chain %p with parent group %p",
       chain, parent);
@@ -2900,7 +2900,7 @@ gst_parse_group_free_internal (GstParseGroup * group, gboolean hide)
   GST_DEBUG_OBJECT (group->parsebin, "%s group %p", (hide ? "Hid" : "Freed"),
       group);
   if (!hide)
-    g_slice_free (GstParseGroup, group);
+    g_free (group);
 }
 
 /* gst_parse_group_free:
@@ -3009,7 +3009,7 @@ gst_parse_chain_start_free_hidden_groups_thread (GstParseChain * chain)
 static GstParseGroup *
 gst_parse_group_new (GstParseBin * parsebin, GstParseChain * parent)
 {
-  GstParseGroup *group = g_slice_new0 (GstParseGroup);
+  GstParseGroup *group = g_new0 (GstParseGroup, 1);
 
   GST_DEBUG_OBJECT (parsebin, "Creating new group %p with parent chain %p",
       group, parent);
@@ -4294,7 +4294,7 @@ gst_pending_pad_free (GstPendingPad * ppad)
   if (ppad->notify_caps_id)
     g_signal_handler_disconnect (ppad->pad, ppad->notify_caps_id);
   gst_object_unref (ppad->pad);
-  g_slice_free (GstPendingPad, ppad);
+  g_free (ppad);
 }
 
 /*****
diff --git a/subprojects/gst-plugins-base/gst/playback/gstplaybin2.c b/subprojects/gst-plugins-base/gst/playback/gstplaybin2.c
index d6aff0cc6e..310ae41a2c 100644
--- a/subprojects/gst-plugins-base/gst/playback/gstplaybin2.c
+++ b/subprojects/gst-plugins-base/gst/playback/gstplaybin2.c
@@ -3959,7 +3959,7 @@ avelements_free (gpointer avelement)
     gst_object_unref (elm->dec);
   if (elm->sink)
     gst_object_unref (elm->sink);
-  g_slice_free (GstAVElement, elm);
+  g_free (elm);
 }
 
 static gint
@@ -4085,7 +4085,7 @@ avelements_create (GstPlayBin * playbin, gboolean isaudioelement)
       if (n_common_cf < 1)
         continue;
 
-      ave = g_slice_new (GstAVElement);
+      ave = g_new (GstAVElement, 1);
       ave->dec = gst_object_ref (d_factory);
       ave->sink = gst_object_ref (s_factory);
       ave->n_comm_cf = n_common_cf;
@@ -4146,7 +4146,7 @@ create_decoders_list (GList * factory_list, GSequence * avelements,
           g_sequence_lookup (avelements, factory,
           (GCompareDataFunc) avelement_lookup_decoder, NULL);
       if (!seq_iter) {
-        GstAVElement *ave = g_slice_new0 (GstAVElement);
+        GstAVElement *ave = g_new0 (GstAVElement, 1);
 
         ave->dec = factory;
         ave->sink = NULL;
@@ -4196,7 +4196,7 @@ create_decoders_list (GList * factory_list, GSequence * avelements,
   gst_plugin_feature_list_free (factory_list);
 
   for (tmp = ave_free_list; tmp; tmp = tmp->next)
-    g_slice_free (GstAVElement, tmp->data);
+    g_free (tmp->data);
   g_list_free (ave_free_list);
 
   dec_list = g_list_reverse (dec_list);
diff --git a/subprojects/gst-plugins-base/gst/playback/gstplaybin3.c b/subprojects/gst-plugins-base/gst/playback/gstplaybin3.c
index 46eb47852c..0c70dd9c40 100644
--- a/subprojects/gst-plugins-base/gst/playback/gstplaybin3.c
+++ b/subprojects/gst-plugins-base/gst/playback/gstplaybin3.c
@@ -2237,7 +2237,7 @@ static void
 control_source_pad (GstPlayBin3 * playbin, GstPad * pad,
     GstPad * combine_pad, GstStreamType stream_type)
 {
-  SourcePad *sourcepad = g_slice_new0 (SourcePad);
+  SourcePad *sourcepad = g_new0 (SourcePad, 1);
 
   sourcepad->pad = pad;
   sourcepad->event_probe_id =
@@ -2415,7 +2415,7 @@ release_source_pad (GstPlayBin3 * playbin,
 
   /* Remove from list of controlled pads and check again for EOS status */
   playbin->source_pads = g_list_remove (playbin->source_pads, sourcepad);
-  g_slice_free (SourcePad, sourcepad);
+  g_free (sourcepad);
 }
 
 /* this function is called when a new pad is added to decodebin. We check the
diff --git a/subprojects/gst-plugins-base/gst/playback/gststreamsynchronizer.c b/subprojects/gst-plugins-base/gst/playback/gststreamsynchronizer.c
index 6a0f26cf43..a94817a2aa 100644
--- a/subprojects/gst-plugins-base/gst/playback/gststreamsynchronizer.c
+++ b/subprojects/gst-plugins-base/gst/playback/gststreamsynchronizer.c
@@ -105,7 +105,7 @@ gst_syncstream_unref (GstSyncStream * stream)
   g_return_if_fail (stream->refcount > 0);
 
   if (g_atomic_int_dec_and_test (&stream->refcount))
-    g_slice_free (GstSyncStream, stream);
+    g_free (stream);
 }
 
 G_BEGIN_DECLS
@@ -879,7 +879,7 @@ gst_stream_synchronizer_new_pad (GstStreamSynchronizer * sync)
   GstStreamSyncPad *sinkpad, *srcpad;
   gchar *tmp;
 
-  stream = g_slice_new0 (GstSyncStream);
+  stream = g_new0 (GstSyncStream, 1);
   stream->transform = sync;
   stream->stream_number = sync->current_stream_number;
   g_cond_init (&stream->stream_finish_cond);
diff --git a/subprojects/gst-plugins-base/gst/playback/gsturidecodebin.c b/subprojects/gst-plugins-base/gst/playback/gsturidecodebin.c
index a128d92217..4f27d7d704 100644
--- a/subprojects/gst-plugins-base/gst/playback/gsturidecodebin.c
+++ b/subprojects/gst-plugins-base/gst/playback/gsturidecodebin.c
@@ -1215,7 +1215,7 @@ new_decoded_pad_added_cb (GstElement * element, GstPad * pad,
   g_object_set_data (G_OBJECT (pad), "uridecodebin.ghostpad", newpad);
 
   /* add event probe to monitor tags */
-  stream = g_slice_alloc0 (sizeof (GstURIDecodeBinStream));
+  stream = g_new0 (GstURIDecodeBinStream, 1);
   stream->probe_id =
       gst_pad_add_probe (pad, GST_PAD_PROBE_TYPE_EVENT_DOWNSTREAM,
       decoded_pad_event_probe, decoder, NULL);
@@ -2140,7 +2140,7 @@ could_not_link:
 static void
 free_stream (gpointer value)
 {
-  g_slice_free (GstURIDecodeBinStream, value);
+  g_free (value);
 }
 
 /* remove source and all related elements */
diff --git a/subprojects/gst-plugins-base/gst/playback/gsturidecodebin3.c b/subprojects/gst-plugins-base/gst/playback/gsturidecodebin3.c
index 8f7181c493..8bbc86be6e 100644
--- a/subprojects/gst-plugins-base/gst/playback/gsturidecodebin3.c
+++ b/subprojects/gst-plugins-base/gst/playback/gsturidecodebin3.c
@@ -675,7 +675,7 @@ add_output_pad (GstURIDecodeBin3 * dec, GstPad * target_pad)
   gchar *pad_name;
   GstEvent *stream_start;
 
-  output = g_slice_new0 (OutputPad);
+  output = g_new0 (OutputPad, 1);
 
   GST_LOG_OBJECT (dec, "Created output %p", output);
 
@@ -751,7 +751,7 @@ db_pad_removed_cb (GstElement * element, GstPad * pad, GstURIDecodeBin3 * dec)
     /* Remove event probe */
     gst_pad_remove_probe (output->target_pad, output->probe_id);
 
-    g_slice_free (OutputPad, output);
+    g_free (output);
 
     check_output_group_id (dec);
   }
@@ -1321,7 +1321,7 @@ static void
 src_pad_added_cb (GstElement * element, GstPad * pad,
     GstSourceHandler * handler)
 {
-  GstSourcePad *spad = g_slice_new0 (GstSourcePad);
+  GstSourcePad *spad = g_new0 (GstSourcePad, 1);
   GstURIDecodeBin3 *uridecodebin;
 
   uridecodebin = handler->uridecodebin;
@@ -1401,7 +1401,7 @@ src_pad_removed_cb (GstElement * element, GstPad * pad,
     gst_object_unref (spad->stream);
 
   handler->sourcepads = g_list_remove (handler->sourcepads, spad);
-  g_slice_free (GstSourcePad, spad);
+  g_free (spad);
 }
 
 static void
@@ -1427,7 +1427,7 @@ new_source_handler (GstURIDecodeBin3 * uridecodebin, GstPlayItem * item,
 {
   GstSourceHandler *handler;
 
-  handler = g_slice_new0 (GstSourceHandler);
+  handler = g_new0 (GstSourceHandler, 1);
 
   handler->uridecodebin = uridecodebin;
   handler->play_item = item;
@@ -1653,13 +1653,13 @@ free_source_handler (GstURIDecodeBin3 * uridecodebin,
   }
   if (handler->pending_buffering_msg)
     gst_message_unref (handler->pending_buffering_msg);
-  g_slice_free (GstSourceHandler, handler);
+  g_free (handler);
 }
 
 static GstSourceItem *
 new_source_item (GstURIDecodeBin3 * dec, GstPlayItem * item, gchar * uri)
 {
-  GstSourceItem *sourceitem = g_slice_new0 (GstSourceItem);
+  GstSourceItem *sourceitem = g_new0 (GstSourceItem, 1);
 
   sourceitem->play_item = item;
   sourceitem->uri = uri;
@@ -1674,7 +1674,7 @@ free_source_item (GstURIDecodeBin3 * uridecodebin, GstSourceItem * item)
   if (item->handler)
     free_source_handler (uridecodebin, item->handler);
   g_free (item->uri);
-  g_slice_free (GstSourceItem, item);
+  g_free (item);
 }
 
 static void
@@ -1691,7 +1691,7 @@ source_item_set_uri (GstSourceItem * item, const gchar * uri)
 static GstPlayItem *
 new_play_item (GstURIDecodeBin3 * dec)
 {
-  GstPlayItem *item = g_slice_new0 (GstPlayItem);
+  GstPlayItem *item = g_new0 (GstPlayItem, 1);
 
   item->uridecodebin = dec;
   item->group_id = GST_GROUP_ID_INVALID;
@@ -1708,7 +1708,7 @@ free_play_item (GstURIDecodeBin3 * dec, GstPlayItem * item)
   if (item->sub_item)
     free_source_item (dec, item->sub_item);
 
-  g_slice_free (GstPlayItem, item);
+  g_free (item);
 }
 
 static void