diff --git a/Cargo.lock b/Cargo.lock
index 776f085b1..fdb7f90bc 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -441,7 +441,7 @@ checksum = "e78d4f1cc4ae33bbfc157ed5d5a5ef3bc29227303d595861deb238fcec4e9457"
 
 [[package]]
 name = "examples"
-version = "0.18.3"
+version = "0.18.4"
 dependencies = [
  "anyhow",
  "byte-slice-cast",
@@ -842,7 +842,7 @@ dependencies = [
 
 [[package]]
 name = "gstreamer"
-version = "0.18.3"
+version = "0.18.4"
 dependencies = [
  "bitflags",
  "cfg-if 1.0.0",
@@ -870,7 +870,7 @@ dependencies = [
 
 [[package]]
 name = "gstreamer-app"
-version = "0.18.3"
+version = "0.18.4"
 dependencies = [
  "bitflags",
  "futures-core",
@@ -888,7 +888,7 @@ dependencies = [
 
 [[package]]
 name = "gstreamer-app-sys"
-version = "0.18.3"
+version = "0.18.4"
 dependencies = [
  "glib-sys",
  "gstreamer-base-sys",
@@ -901,7 +901,7 @@ dependencies = [
 
 [[package]]
 name = "gstreamer-audio"
-version = "0.18.3"
+version = "0.18.4"
 dependencies = [
  "array-init",
  "bitflags",
@@ -918,7 +918,7 @@ dependencies = [
 
 [[package]]
 name = "gstreamer-audio-sys"
-version = "0.18.3"
+version = "0.18.4"
 dependencies = [
  "glib-sys",
  "gobject-sys",
@@ -932,7 +932,7 @@ dependencies = [
 
 [[package]]
 name = "gstreamer-base"
-version = "0.18.3"
+version = "0.18.4"
 dependencies = [
  "bitflags",
  "cfg-if 1.0.0",
@@ -945,7 +945,7 @@ dependencies = [
 
 [[package]]
 name = "gstreamer-base-sys"
-version = "0.18.3"
+version = "0.18.4"
 dependencies = [
  "glib-sys",
  "gobject-sys",
@@ -958,7 +958,7 @@ dependencies = [
 
 [[package]]
 name = "gstreamer-check"
-version = "0.18.3"
+version = "0.18.4"
 dependencies = [
  "bitflags",
  "gir-format-check",
@@ -969,7 +969,7 @@ dependencies = [
 
 [[package]]
 name = "gstreamer-check-sys"
-version = "0.18.3"
+version = "0.18.4"
 dependencies = [
  "glib-sys",
  "gobject-sys",
@@ -982,7 +982,7 @@ dependencies = [
 
 [[package]]
 name = "gstreamer-controller"
-version = "0.18.3"
+version = "0.18.4"
 dependencies = [
  "bitflags",
  "gir-format-check",
@@ -994,7 +994,7 @@ dependencies = [
 
 [[package]]
 name = "gstreamer-controller-sys"
-version = "0.18.3"
+version = "0.18.4"
 dependencies = [
  "glib-sys",
  "gobject-sys",
@@ -1008,7 +1008,7 @@ dependencies = [
 
 [[package]]
 name = "gstreamer-editing-services"
-version = "0.18.3"
+version = "0.18.4"
 dependencies = [
  "bitflags",
  "gio",
@@ -1023,7 +1023,7 @@ dependencies = [
 
 [[package]]
 name = "gstreamer-editing-services-sys"
-version = "0.18.3"
+version = "0.18.4"
 dependencies = [
  "gio-sys",
  "glib-sys",
@@ -1038,7 +1038,7 @@ dependencies = [
 
 [[package]]
 name = "gstreamer-gl"
-version = "0.18.3"
+version = "0.18.4"
 dependencies = [
  "bitflags",
  "byteorder",
@@ -1055,7 +1055,7 @@ dependencies = [
 
 [[package]]
 name = "gstreamer-gl-egl"
-version = "0.18.3"
+version = "0.18.4"
 dependencies = [
  "gir-format-check",
  "glib",
@@ -1067,7 +1067,7 @@ dependencies = [
 
 [[package]]
 name = "gstreamer-gl-egl-sys"
-version = "0.18.3"
+version = "0.18.4"
 dependencies = [
  "glib-sys",
  "gstreamer-gl-sys",
@@ -1079,7 +1079,7 @@ dependencies = [
 
 [[package]]
 name = "gstreamer-gl-sys"
-version = "0.18.3"
+version = "0.18.4"
 dependencies = [
  "glib-sys",
  "gobject-sys",
@@ -1094,7 +1094,7 @@ dependencies = [
 
 [[package]]
 name = "gstreamer-gl-wayland"
-version = "0.18.3"
+version = "0.18.4"
 dependencies = [
  "gir-format-check",
  "glib",
@@ -1106,7 +1106,7 @@ dependencies = [
 
 [[package]]
 name = "gstreamer-gl-wayland-sys"
-version = "0.18.3"
+version = "0.18.4"
 dependencies = [
  "glib-sys",
  "gstreamer-gl-sys",
@@ -1118,7 +1118,7 @@ dependencies = [
 
 [[package]]
 name = "gstreamer-gl-x11"
-version = "0.18.3"
+version = "0.18.4"
 dependencies = [
  "gir-format-check",
  "glib",
@@ -1130,7 +1130,7 @@ dependencies = [
 
 [[package]]
 name = "gstreamer-gl-x11-sys"
-version = "0.18.3"
+version = "0.18.4"
 dependencies = [
  "glib-sys",
  "gstreamer-gl-sys",
@@ -1142,7 +1142,7 @@ dependencies = [
 
 [[package]]
 name = "gstreamer-mpegts-sys"
-version = "0.18.3"
+version = "0.18.4"
 dependencies = [
  "glib-sys",
  "gstreamer-base-sys",
@@ -1155,7 +1155,7 @@ dependencies = [
 
 [[package]]
 name = "gstreamer-net"
-version = "0.18.3"
+version = "0.18.4"
 dependencies = [
  "gio",
  "gir-format-check",
@@ -1166,7 +1166,7 @@ dependencies = [
 
 [[package]]
 name = "gstreamer-net-sys"
-version = "0.18.3"
+version = "0.18.4"
 dependencies = [
  "gio-sys",
  "glib-sys",
@@ -1179,7 +1179,7 @@ dependencies = [
 
 [[package]]
 name = "gstreamer-pbutils"
-version = "0.18.3"
+version = "0.18.4"
 dependencies = [
  "bitflags",
  "gir-format-check",
@@ -1192,7 +1192,7 @@ dependencies = [
 
 [[package]]
 name = "gstreamer-pbutils-sys"
-version = "0.18.3"
+version = "0.18.4"
 dependencies = [
  "glib-sys",
  "gobject-sys",
@@ -1207,7 +1207,7 @@ dependencies = [
 
 [[package]]
 name = "gstreamer-player"
-version = "0.18.3"
+version = "0.18.4"
 dependencies = [
  "bitflags",
  "gir-format-check",
@@ -1221,7 +1221,7 @@ dependencies = [
 
 [[package]]
 name = "gstreamer-player-sys"
-version = "0.18.3"
+version = "0.18.4"
 dependencies = [
  "glib-sys",
  "gobject-sys",
@@ -1235,7 +1235,7 @@ dependencies = [
 
 [[package]]
 name = "gstreamer-rtp"
-version = "0.18.3"
+version = "0.18.4"
 dependencies = [
  "bitflags",
  "gir-format-check",
@@ -1248,7 +1248,7 @@ dependencies = [
 
 [[package]]
 name = "gstreamer-rtp-sys"
-version = "0.18.3"
+version = "0.18.4"
 dependencies = [
  "glib-sys",
  "gstreamer-base-sys",
@@ -1261,7 +1261,7 @@ dependencies = [
 
 [[package]]
 name = "gstreamer-rtsp"
-version = "0.18.3"
+version = "0.18.4"
 dependencies = [
  "bitflags",
  "gir-format-check",
@@ -1274,7 +1274,7 @@ dependencies = [
 
 [[package]]
 name = "gstreamer-rtsp-server"
-version = "0.18.3"
+version = "0.18.4"
 dependencies = [
  "bitflags",
  "gio",
@@ -1291,7 +1291,7 @@ dependencies = [
 
 [[package]]
 name = "gstreamer-rtsp-server-sys"
-version = "0.18.3"
+version = "0.18.4"
 dependencies = [
  "gio-sys",
  "glib-sys",
@@ -1308,7 +1308,7 @@ dependencies = [
 
 [[package]]
 name = "gstreamer-rtsp-sys"
-version = "0.18.3"
+version = "0.18.4"
 dependencies = [
  "gio-sys",
  "glib-sys",
@@ -1323,7 +1323,7 @@ dependencies = [
 
 [[package]]
 name = "gstreamer-sdp"
-version = "0.18.3"
+version = "0.18.4"
 dependencies = [
  "gir-format-check",
  "glib",
@@ -1333,7 +1333,7 @@ dependencies = [
 
 [[package]]
 name = "gstreamer-sdp-sys"
-version = "0.18.3"
+version = "0.18.4"
 dependencies = [
  "glib-sys",
  "gstreamer-sys",
@@ -1345,7 +1345,7 @@ dependencies = [
 
 [[package]]
 name = "gstreamer-sys"
-version = "0.18.3"
+version = "0.18.4"
 dependencies = [
  "glib-sys",
  "gobject-sys",
@@ -1357,7 +1357,7 @@ dependencies = [
 
 [[package]]
 name = "gstreamer-tag-sys"
-version = "0.18.3"
+version = "0.18.4"
 dependencies = [
  "glib-sys",
  "gobject-sys",
@@ -1370,7 +1370,7 @@ dependencies = [
 
 [[package]]
 name = "gstreamer-video"
-version = "0.18.3"
+version = "0.18.4"
 dependencies = [
  "bitflags",
  "cfg-if 1.0.0",
@@ -1389,7 +1389,7 @@ dependencies = [
 
 [[package]]
 name = "gstreamer-video-sys"
-version = "0.18.3"
+version = "0.18.4"
 dependencies = [
  "glib-sys",
  "gobject-sys",
@@ -1403,7 +1403,7 @@ dependencies = [
 
 [[package]]
 name = "gstreamer-webrtc"
-version = "0.18.3"
+version = "0.18.4"
 dependencies = [
  "gir-format-check",
  "glib",
@@ -1415,7 +1415,7 @@ dependencies = [
 
 [[package]]
 name = "gstreamer-webrtc-sys"
-version = "0.18.3"
+version = "0.18.4"
 dependencies = [
  "glib-sys",
  "gstreamer-sdp-sys",
@@ -2407,7 +2407,7 @@ dependencies = [
 
 [[package]]
 name = "tutorials"
-version = "0.18.3"
+version = "0.18.4"
 dependencies = [
  "anyhow",
  "byte-slice-cast",