From f81d7b61b5923eea4247548c1778d1c71d94ed92 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20Dr=C3=B6ge?= <sebastian@centricular.com>
Date: Sun, 22 Nov 2020 19:21:45 +0200
Subject: [PATCH] video: Update to 2018 edition

---
 video/cdg/Cargo.toml                         | 12 ++++----
 video/cdg/src/cdgdec/imp.rs                  | 11 ++++----
 video/cdg/src/cdgdec/mod.rs                  |  2 +-
 video/cdg/src/cdgparse/imp.rs                | 14 ++++++----
 video/cdg/src/cdgparse/mod.rs                |  2 +-
 video/cdg/src/lib.rs                         | 11 +-------
 video/cdg/tests/cdgdec.rs                    |  3 --
 video/closedcaption/Cargo.toml               |  3 +-
 video/closedcaption/src/ccdetect/imp.rs      | 13 +++++----
 video/closedcaption/src/ccdetect/mod.rs      |  2 +-
 video/closedcaption/src/cea608overlay/imp.rs | 23 ++++++++--------
 video/closedcaption/src/cea608overlay/mod.rs |  2 +-
 video/closedcaption/src/cea608tott/imp.rs    | 13 +++++----
 video/closedcaption/src/cea608tott/mod.rs    |  2 +-
 video/closedcaption/src/lib.rs               | 13 +--------
 video/closedcaption/src/mcc_enc/imp.rs       | 13 +++++----
 video/closedcaption/src/mcc_enc/mod.rs       |  2 +-
 video/closedcaption/src/mcc_parse/imp.rs     | 24 +++++++++-------
 video/closedcaption/src/mcc_parse/mod.rs     |  2 +-
 video/closedcaption/src/scc_enc/imp.rs       | 21 +++++++-------
 video/closedcaption/src/scc_enc/mod.rs       |  2 +-
 video/closedcaption/src/scc_parse/imp.rs     | 21 +++++++-------
 video/closedcaption/src/scc_parse/mod.rs     |  2 +-
 video/closedcaption/src/tttocea608/imp.rs    | 16 +++++++----
 video/closedcaption/src/tttocea608/mod.rs    |  5 ++--
 video/closedcaption/tests/ccdetect.rs        |  5 ++--
 video/closedcaption/tests/cea608tott.rs      |  5 ++--
 video/closedcaption/tests/mcc_enc.rs         |  5 ++--
 video/closedcaption/tests/mcc_parse.rs       |  4 +--
 video/closedcaption/tests/scc_enc.rs         |  3 +-
 video/closedcaption/tests/scc_parse.rs       |  4 +--
 video/closedcaption/tests/tttocea608.rs      |  3 +-
 video/dav1d/Cargo.toml                       |  8 +++---
 video/dav1d/src/dav1ddec/imp.rs              | 13 +++++----
 video/dav1d/src/dav1ddec/mod.rs              |  2 +-
 video/dav1d/src/lib.rs                       | 12 +-------
 video/flavors/Cargo.toml                     |  6 ++--
 video/flavors/src/flvdemux/imp.rs            | 29 +++++++++++---------
 video/flavors/src/flvdemux/mod.rs            |  2 +-
 video/flavors/src/lib.rs                     | 11 +-------
 video/gif/Cargo.toml                         |  8 ++++--
 video/gif/examples/testvideosrc2gif.rs       |  1 -
 video/gif/src/gifenc/imp.rs                  |  3 +-
 video/gif/src/gifenc/mod.rs                  |  2 +-
 video/gif/src/lib.rs                         |  8 +-----
 video/gif/tests/gifenc.rs                    |  7 -----
 video/rav1e/Cargo.toml                       | 10 ++++---
 video/rav1e/src/lib.rs                       | 10 +------
 video/rav1e/src/rav1enc/imp.rs               | 12 ++++----
 video/rav1e/src/rav1enc/mod.rs               |  2 +-
 video/rav1e/tests/rav1enc.rs                 |  6 ----
 video/rspng/Cargo.toml                       |  4 ++-
 52 files changed, 189 insertions(+), 230 deletions(-)

diff --git a/video/cdg/Cargo.toml b/video/cdg/Cargo.toml
index 604a5b03..e5c73207 100644
--- a/video/cdg/Cargo.toml
+++ b/video/cdg/Cargo.toml
@@ -9,15 +9,17 @@ edition = "2018"
 
 [dependencies]
 glib = { git = "https://github.com/gtk-rs/gtk-rs" }
-gstreamer = { git = "https://gitlab.freedesktop.org/gstreamer/gstreamer-rs", features = ["v1_12"] }
-gstreamer-base = { git = "https://gitlab.freedesktop.org/gstreamer/gstreamer-rs", features = ["v1_12"] }
-gstreamer-video = { git = "https://gitlab.freedesktop.org/gstreamer/gstreamer-rs", features = ["v1_12"] }
-gstreamer-app = { git = "https://gitlab.freedesktop.org/gstreamer/gstreamer-rs" }
+gst = { package = "gstreamer", git = "https://gitlab.freedesktop.org/gstreamer/gstreamer-rs", features = ["v1_12"] }
+gst-base = { package = "gstreamer-base", git = "https://gitlab.freedesktop.org/gstreamer/gstreamer-rs", features = ["v1_12"] }
+gst-video = { package = "gstreamer-video", git = "https://gitlab.freedesktop.org/gstreamer/gstreamer-rs", features = ["v1_12"] }
 cdg = "0.1"
 cdg_renderer = "0.6"
 image = { version = "0.23", default-features = false }
 muldiv = "1.0"
-lazy_static = "1.0"
+once_cell = "1.0"
+
+[dev-dependencies]
+gst-app = { package = "gstreamer-app", git = "https://gitlab.freedesktop.org/gstreamer/gstreamer-rs" }
 
 [lib]
 name = "gstcdg"
diff --git a/video/cdg/src/cdgdec/imp.rs b/video/cdg/src/cdgdec/imp.rs
index 2a2365d1..da43e502 100644
--- a/video/cdg/src/cdgdec/imp.rs
+++ b/video/cdg/src/cdgdec/imp.rs
@@ -9,18 +9,19 @@
 use glib::subclass;
 use glib::subclass::prelude::*;
 use gst::subclass::prelude::*;
+use gst::{gst_debug, gst_element_error};
 use gst_video::prelude::VideoDecoderExtManual;
 use gst_video::prelude::*;
 use gst_video::subclass::prelude::*;
 use image::GenericImageView;
+use once_cell::sync::Lazy;
 use std::sync::Mutex;
 
 use crate::constants::{CDG_HEIGHT, CDG_WIDTH};
 
-lazy_static! {
-    static ref CAT: gst::DebugCategory =
-        gst::DebugCategory::new("cdgdec", gst::DebugColorFlags::empty(), Some("CDG decoder"),);
-}
+static CAT: Lazy<gst::DebugCategory> = Lazy::new(|| {
+    gst::DebugCategory::new("cdgdec", gst::DebugColorFlags::empty(), Some("CDG decoder"))
+});
 
 pub struct CdgDec {
     cdg_inter: Mutex<Box<cdg_renderer::CdgInterpreter>>,
@@ -34,7 +35,7 @@ impl ObjectSubclass for CdgDec {
     type Instance = gst::subclass::ElementInstanceStruct<Self>;
     type Class = subclass::simple::ClassStruct<Self>;
 
-    glib_object_subclass!();
+    glib::glib_object_subclass!();
 
     fn new() -> Self {
         Self {
diff --git a/video/cdg/src/cdgdec/mod.rs b/video/cdg/src/cdgdec/mod.rs
index daf17cb4..54ad3ed7 100644
--- a/video/cdg/src/cdgdec/mod.rs
+++ b/video/cdg/src/cdgdec/mod.rs
@@ -10,7 +10,7 @@ use glib::prelude::*;
 
 mod imp;
 
-glib_wrapper! {
+glib::glib_wrapper! {
     pub struct CdgDec(ObjectSubclass<imp::CdgDec>) @extends gst_video::VideoDecoder, gst::Element, gst::Object;
 }
 
diff --git a/video/cdg/src/cdgparse/imp.rs b/video/cdg/src/cdgparse/imp.rs
index 7b564a5a..f4928638 100644
--- a/video/cdg/src/cdgparse/imp.rs
+++ b/video/cdg/src/cdgparse/imp.rs
@@ -8,11 +8,13 @@
 
 use glib::subclass;
 use glib::subclass::prelude::*;
+use gst::format::Bytes;
 use gst::subclass::prelude::*;
 use gst::SECOND_VAL;
+use gst::{gst_debug, gst_element_error};
 use gst_base::prelude::*;
 use gst_base::subclass::prelude::*;
-use gstreamer::format::Bytes;
+use once_cell::sync::Lazy;
 use std::convert::TryInto;
 
 use crate::constants::{
@@ -25,13 +27,13 @@ const CDG_CMD_MEMORY_LOAD_COLOR_TABLE_2: u8 = 31;
 
 pub struct CdgParse;
 
-lazy_static! {
-    static ref CAT: gst::DebugCategory = gst::DebugCategory::new(
+static CAT: Lazy<gst::DebugCategory> = Lazy::new(|| {
+    gst::DebugCategory::new(
         "cdgparse",
         gst::DebugColorFlags::empty(),
         Some("CDG parser"),
-    );
-}
+    )
+});
 
 impl ObjectSubclass for CdgParse {
     const NAME: &'static str = "CdgParse";
@@ -40,7 +42,7 @@ impl ObjectSubclass for CdgParse {
     type Instance = gst::subclass::ElementInstanceStruct<Self>;
     type Class = subclass::simple::ClassStruct<Self>;
 
-    glib_object_subclass!();
+    glib::glib_object_subclass!();
 
     fn new() -> Self {
         Self
diff --git a/video/cdg/src/cdgparse/mod.rs b/video/cdg/src/cdgparse/mod.rs
index 10cac351..b5e594d9 100644
--- a/video/cdg/src/cdgparse/mod.rs
+++ b/video/cdg/src/cdgparse/mod.rs
@@ -10,7 +10,7 @@ use glib::prelude::*;
 
 mod imp;
 
-glib_wrapper! {
+glib::glib_wrapper! {
     pub struct CdgParse(ObjectSubclass<imp::CdgParse>) @extends gst_base::BaseParse, gst::Element, gst::Object;
 }
 
diff --git a/video/cdg/src/lib.rs b/video/cdg/src/lib.rs
index c5e5bb51..59b2a510 100644
--- a/video/cdg/src/lib.rs
+++ b/video/cdg/src/lib.rs
@@ -6,15 +6,6 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-#[macro_use]
-extern crate glib;
-#[macro_use]
-extern crate gstreamer as gst;
-extern crate gstreamer_base as gst_base;
-extern crate gstreamer_video as gst_video;
-#[macro_use]
-extern crate lazy_static;
-
 mod cdgdec;
 mod cdgparse;
 mod constants;
@@ -27,7 +18,7 @@ fn plugin_init(plugin: &gst::Plugin) -> Result<(), glib::BoolError> {
     Ok(())
 }
 
-gst_plugin_define!(
+gst::gst_plugin_define!(
     cdg,
     env!("CARGO_PKG_DESCRIPTION"),
     plugin_init,
diff --git a/video/cdg/tests/cdgdec.rs b/video/cdg/tests/cdgdec.rs
index c43ffa4f..9dd8b1a2 100644
--- a/video/cdg/tests/cdgdec.rs
+++ b/video/cdg/tests/cdgdec.rs
@@ -6,9 +6,6 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-extern crate gstreamer as gst;
-extern crate gstreamer_app as gst_app;
-
 use gst::prelude::*;
 use std::path::PathBuf;
 
diff --git a/video/closedcaption/Cargo.toml b/video/closedcaption/Cargo.toml
index 20ca30a1..edd3dad1 100644
--- a/video/closedcaption/Cargo.toml
+++ b/video/closedcaption/Cargo.toml
@@ -13,10 +13,9 @@ nom = "6.0"
 either = "1"
 uuid = { version = "0.8", features = ["v4"] }
 chrono = "0.4"
-lazy_static = "1.2"
+once_cell = "1.0"
 atomic_refcell = "0.1"
 cairo-rs = { git = "https://github.com/gtk-rs/gtk-rs", features=["use_glib"] }
-cairo-sys-rs = { git = "https://github.com/gtk-rs/gtk-rs" }
 pango = { git = "https://github.com/gtk-rs/gtk-rs" }
 pangocairo = { git = "https://github.com/gtk-rs/gtk-rs" }
 byteorder = "1"
diff --git a/video/closedcaption/src/ccdetect/imp.rs b/video/closedcaption/src/ccdetect/imp.rs
index 3f38998c..5ac43309 100644
--- a/video/closedcaption/src/ccdetect/imp.rs
+++ b/video/closedcaption/src/ccdetect/imp.rs
@@ -19,21 +19,24 @@ use glib::subclass;
 use glib::subclass::prelude::*;
 use gst::prelude::*;
 use gst::subclass::prelude::*;
+use gst::{gst_element_error, gst_element_warning, gst_loggable_error, gst_trace, gst_warning};
 use gst_base::subclass::prelude::*;
 
 use byteorder::{BigEndian, ByteOrder};
 
+use once_cell::sync::Lazy;
+
 use std::fmt;
 use std::sync::Mutex;
 use std::u64;
 
-lazy_static! {
-    static ref CAT: gst::DebugCategory = gst::DebugCategory::new(
+static CAT: Lazy<gst::DebugCategory> = Lazy::new(|| {
+    gst::DebugCategory::new(
         "ccdetect",
         gst::DebugColorFlags::empty(),
         Some("Closed Caption Detection"),
-    );
-}
+    )
+});
 
 const DEFAULT_WINDOW: u64 = 10 * gst::SECOND_VAL;
 const DEFAULT_CC608: bool = false;
@@ -387,7 +390,7 @@ impl ObjectSubclass for CCDetect {
     type Instance = gst::subclass::ElementInstanceStruct<Self>;
     type Class = subclass::simple::ClassStruct<Self>;
 
-    glib_object_subclass!();
+    glib::glib_object_subclass!();
 
     fn new() -> Self {
         Self {
diff --git a/video/closedcaption/src/ccdetect/mod.rs b/video/closedcaption/src/ccdetect/mod.rs
index 11a82b86..681ec6ff 100644
--- a/video/closedcaption/src/ccdetect/mod.rs
+++ b/video/closedcaption/src/ccdetect/mod.rs
@@ -19,7 +19,7 @@ use glib::prelude::*;
 
 mod imp;
 
-glib_wrapper! {
+glib::glib_wrapper! {
     pub struct CCDetect(ObjectSubclass<imp::CCDetect>) @extends gst_base::BaseTransform, gst::Element, gst::Object;
 }
 
diff --git a/video/closedcaption/src/cea608overlay/imp.rs b/video/closedcaption/src/cea608overlay/imp.rs
index e55c16c8..61f6a989 100644
--- a/video/closedcaption/src/cea608overlay/imp.rs
+++ b/video/closedcaption/src/cea608overlay/imp.rs
@@ -19,23 +19,24 @@ use glib::subclass;
 use glib::subclass::prelude::*;
 use gst::prelude::*;
 use gst::subclass::prelude::*;
+use gst::{gst_element_error, gst_error, gst_log, gst_trace};
 use gst_video::prelude::*;
 
+use once_cell::sync::Lazy;
+
 use std::sync::Mutex;
 
 use pango::prelude::*;
 
 use crate::caption_frame::{CaptionFrame, Status};
 
-lazy_static! {
-    static ref CAT: gst::DebugCategory = {
-        gst::DebugCategory::new(
-            "cea608overlay",
-            gst::DebugColorFlags::empty(),
-            Some("CEA 608 overlay element"),
-        )
-    };
-}
+static CAT: Lazy<gst::DebugCategory> = Lazy::new(|| {
+    gst::DebugCategory::new(
+        "cea608overlay",
+        gst::DebugColorFlags::empty(),
+        Some("CEA 608 overlay element"),
+    )
+});
 
 struct State {
     video_info: Option<gst_video::VideoInfo>,
@@ -209,7 +210,7 @@ impl Cea608Overlay {
             // anymore mutably.
             unsafe {
                 assert_eq!(
-                    cairo_sys::cairo_surface_get_reference_count(surface.to_raw_none()),
+                    cairo::ffi::cairo_surface_get_reference_count(surface.to_raw_none()),
                     1
                 );
                 let buffer = glib::translate::from_glib_none(buffer_ptr);
@@ -391,7 +392,7 @@ impl ObjectSubclass for Cea608Overlay {
     type Instance = gst::subclass::ElementInstanceStruct<Self>;
     type Class = subclass::simple::ClassStruct<Self>;
 
-    glib_object_subclass!();
+    glib::glib_object_subclass!();
 
     fn with_class(klass: &Self::Class) -> Self {
         let templ = klass.get_pad_template("sink").unwrap();
diff --git a/video/closedcaption/src/cea608overlay/mod.rs b/video/closedcaption/src/cea608overlay/mod.rs
index 54669bf3..ca84bdd4 100644
--- a/video/closedcaption/src/cea608overlay/mod.rs
+++ b/video/closedcaption/src/cea608overlay/mod.rs
@@ -25,7 +25,7 @@ use glib::prelude::*;
 
 mod imp;
 
-glib_wrapper! {
+glib::glib_wrapper! {
     pub struct Cea608Overlay(ObjectSubclass<imp::Cea608Overlay>) @extends gst::Element, gst::Object;
 }
 
diff --git a/video/closedcaption/src/cea608tott/imp.rs b/video/closedcaption/src/cea608tott/imp.rs
index 6dbc36ac..68aee6c0 100644
--- a/video/closedcaption/src/cea608tott/imp.rs
+++ b/video/closedcaption/src/cea608tott/imp.rs
@@ -10,10 +10,13 @@ use glib::subclass;
 use glib::subclass::prelude::*;
 use gst::prelude::*;
 use gst::subclass::prelude::*;
+use gst::{gst_debug, gst_error, gst_log, gst_trace};
 
 use crate::caption_frame::{CaptionFrame, Status};
 use atomic_refcell::AtomicRefCell;
 
+use once_cell::sync::Lazy;
+
 #[derive(Copy, Clone, Debug)]
 enum Format {
     Srt,
@@ -48,13 +51,13 @@ pub struct Cea608ToTt {
     state: AtomicRefCell<State>,
 }
 
-lazy_static! {
-    static ref CAT: gst::DebugCategory = gst::DebugCategory::new(
+static CAT: Lazy<gst::DebugCategory> = Lazy::new(|| {
+    gst::DebugCategory::new(
         "cea608tott",
         gst::DebugColorFlags::empty(),
         Some("CEA-608 to TT Element"),
-    );
-}
+    )
+});
 
 impl Cea608ToTt {
     fn sink_chain(
@@ -375,7 +378,7 @@ impl ObjectSubclass for Cea608ToTt {
     type Instance = gst::subclass::ElementInstanceStruct<Self>;
     type Class = subclass::simple::ClassStruct<Self>;
 
-    glib_object_subclass!();
+    glib::glib_object_subclass!();
 
     fn with_class(klass: &Self::Class) -> Self {
         let templ = klass.get_pad_template("sink").unwrap();
diff --git a/video/closedcaption/src/cea608tott/mod.rs b/video/closedcaption/src/cea608tott/mod.rs
index 51b23dc8..8690033f 100644
--- a/video/closedcaption/src/cea608tott/mod.rs
+++ b/video/closedcaption/src/cea608tott/mod.rs
@@ -10,7 +10,7 @@ use glib::prelude::*;
 
 mod imp;
 
-glib_wrapper! {
+glib::glib_wrapper! {
     pub struct Cea608ToTt(ObjectSubclass<imp::Cea608ToTt>) @extends gst::Element, gst::Object;
 }
 
diff --git a/video/closedcaption/src/lib.rs b/video/closedcaption/src/lib.rs
index e372d659..3c6f971c 100644
--- a/video/closedcaption/src/lib.rs
+++ b/video/closedcaption/src/lib.rs
@@ -17,17 +17,6 @@
 
 #![recursion_limit = "128"]
 
-#[macro_use]
-extern crate glib;
-#[macro_use]
-extern crate gst;
-#[macro_use]
-extern crate lazy_static;
-
-#[cfg(test)]
-#[macro_use]
-extern crate pretty_assertions;
-
 #[allow(non_camel_case_types, non_upper_case_globals, unused)]
 #[allow(clippy::redundant_static_lifetimes, clippy::unreadable_literal)]
 #[allow(clippy::useless_transmute, clippy::trivially_copy_pass_by_ref)]
@@ -57,7 +46,7 @@ fn plugin_init(plugin: &gst::Plugin) -> Result<(), glib::BoolError> {
     Ok(())
 }
 
-gst_plugin_define!(
+gst::gst_plugin_define!(
     rsclosedcaption,
     env!("CARGO_PKG_DESCRIPTION"),
     plugin_init,
diff --git a/video/closedcaption/src/mcc_enc/imp.rs b/video/closedcaption/src/mcc_enc/imp.rs
index 243a0796..786d52c0 100644
--- a/video/closedcaption/src/mcc_enc/imp.rs
+++ b/video/closedcaption/src/mcc_enc/imp.rs
@@ -21,10 +21,13 @@ use glib::subclass::prelude::*;
 use gst::prelude::*;
 use gst::structure;
 use gst::subclass::prelude::*;
+use gst::{gst_element_error, gst_error, gst_log, gst_trace};
 
 use chrono::prelude::*;
 use uuid::Uuid;
 
+use once_cell::sync::Lazy;
+
 use std::io::Write;
 use std::sync::Mutex;
 
@@ -94,13 +97,13 @@ pub struct MccEnc {
     settings: Mutex<Settings>,
 }
 
-lazy_static! {
-    static ref CAT: gst::DebugCategory = gst::DebugCategory::new(
+static CAT: Lazy<gst::DebugCategory> = Lazy::new(|| {
+    gst::DebugCategory::new(
         "mccenc",
         gst::DebugColorFlags::empty(),
         Some("Mcc Encoder Element"),
-    );
-}
+    )
+});
 
 impl MccEnc {
     #[allow(clippy::write_with_newline)]
@@ -470,7 +473,7 @@ impl ObjectSubclass for MccEnc {
     type Instance = gst::subclass::ElementInstanceStruct<Self>;
     type Class = subclass::simple::ClassStruct<Self>;
 
-    glib_object_subclass!();
+    glib::glib_object_subclass!();
 
     fn with_class(klass: &Self::Class) -> Self {
         let templ = klass.get_pad_template("sink").unwrap();
diff --git a/video/closedcaption/src/mcc_enc/mod.rs b/video/closedcaption/src/mcc_enc/mod.rs
index f3c1f0d3..6bb606ea 100644
--- a/video/closedcaption/src/mcc_enc/mod.rs
+++ b/video/closedcaption/src/mcc_enc/mod.rs
@@ -20,7 +20,7 @@ use glib::prelude::*;
 mod headers;
 mod imp;
 
-glib_wrapper! {
+glib::glib_wrapper! {
     pub struct MccEnc(ObjectSubclass<imp::MccEnc>) @extends gst::Element, gst::Object;
 }
 
diff --git a/video/closedcaption/src/mcc_parse/imp.rs b/video/closedcaption/src/mcc_parse/imp.rs
index 953b70f3..945461e8 100644
--- a/video/closedcaption/src/mcc_parse/imp.rs
+++ b/video/closedcaption/src/mcc_parse/imp.rs
@@ -20,25 +20,29 @@ use glib::subclass;
 use glib::subclass::prelude::*;
 use gst::prelude::*;
 use gst::subclass::prelude::*;
+use gst::{
+    gst_debug, gst_element_error, gst_error, gst_fixme, gst_info, gst_log, gst_loggable_error,
+    gst_trace, gst_warning,
+};
 use gst_video::ValidVideoTimeCode;
 
 use std::cmp;
 use std::convert::TryInto;
 use std::sync::{Mutex, MutexGuard};
 
+use once_cell::sync::Lazy;
+
 use super::parser::{MccLine, MccParser};
 use crate::line_reader::LineReader;
 use crate::parser_utils::TimeCode;
 
-lazy_static! {
-    static ref CAT: gst::DebugCategory = {
-        gst::DebugCategory::new(
-            "mccparse",
-            gst::DebugColorFlags::empty(),
-            Some("Mcc Parser Element"),
-        )
-    };
-}
+static CAT: Lazy<gst::DebugCategory> = Lazy::new(|| {
+    gst::DebugCategory::new(
+        "mccparse",
+        gst::DebugColorFlags::empty(),
+        Some("Mcc Parser Element"),
+    )
+});
 
 #[derive(Clone, Copy, Debug, PartialEq, Eq)]
 enum Format {
@@ -1133,7 +1137,7 @@ impl ObjectSubclass for MccParse {
     type Instance = gst::subclass::ElementInstanceStruct<Self>;
     type Class = subclass::simple::ClassStruct<Self>;
 
-    glib_object_subclass!();
+    glib::glib_object_subclass!();
 
     fn with_class(klass: &Self::Class) -> Self {
         let templ = klass.get_pad_template("sink").unwrap();
diff --git a/video/closedcaption/src/mcc_parse/mod.rs b/video/closedcaption/src/mcc_parse/mod.rs
index d3ee283e..7bf4d45b 100644
--- a/video/closedcaption/src/mcc_parse/mod.rs
+++ b/video/closedcaption/src/mcc_parse/mod.rs
@@ -20,7 +20,7 @@ use glib::prelude::*;
 mod imp;
 mod parser;
 
-glib_wrapper! {
+glib::glib_wrapper! {
     pub struct MccParse(ObjectSubclass<imp::MccParse>) @extends gst::Element, gst::Object;
 }
 
diff --git a/video/closedcaption/src/scc_enc/imp.rs b/video/closedcaption/src/scc_enc/imp.rs
index c9c47393..20c86c9b 100644
--- a/video/closedcaption/src/scc_enc/imp.rs
+++ b/video/closedcaption/src/scc_enc/imp.rs
@@ -21,20 +21,21 @@ use glib::subclass::prelude::*;
 use gst::prelude::*;
 use gst::structure;
 use gst::subclass::prelude::*;
+use gst::{gst_element_error, gst_error, gst_log, gst_trace};
 use gst_video::{self, ValidVideoTimeCode};
 
+use once_cell::sync::Lazy;
+
 use std::io::Write;
 use std::sync::Mutex;
 
-lazy_static! {
-    static ref CAT: gst::DebugCategory = {
-        gst::DebugCategory::new(
-            "sccenc",
-            gst::DebugColorFlags::empty(),
-            Some("Scc Encoder Element"),
-        )
-    };
-}
+static CAT: Lazy<gst::DebugCategory> = Lazy::new(|| {
+    gst::DebugCategory::new(
+        "sccenc",
+        gst::DebugColorFlags::empty(),
+        Some("Scc Encoder Element"),
+    )
+});
 
 #[derive(Debug)]
 struct State {
@@ -339,7 +340,7 @@ impl ObjectSubclass for SccEnc {
     type Instance = gst::subclass::ElementInstanceStruct<Self>;
     type Class = subclass::simple::ClassStruct<Self>;
 
-    glib_object_subclass!();
+    glib::glib_object_subclass!();
 
     fn with_class(klass: &Self::Class) -> Self {
         let templ = klass.get_pad_template("sink").unwrap();
diff --git a/video/closedcaption/src/scc_enc/mod.rs b/video/closedcaption/src/scc_enc/mod.rs
index 46998d75..ac215456 100644
--- a/video/closedcaption/src/scc_enc/mod.rs
+++ b/video/closedcaption/src/scc_enc/mod.rs
@@ -20,7 +20,7 @@ use glib::prelude::*;
 
 mod imp;
 
-glib_wrapper! {
+glib::glib_wrapper! {
     pub struct SccEnc(ObjectSubclass<imp::SccEnc>) @extends gst::Element, gst::Object;
 }
 
diff --git a/video/closedcaption/src/scc_parse/imp.rs b/video/closedcaption/src/scc_parse/imp.rs
index 22a2b477..a7835dd7 100644
--- a/video/closedcaption/src/scc_parse/imp.rs
+++ b/video/closedcaption/src/scc_parse/imp.rs
@@ -20,22 +20,23 @@ use glib::subclass;
 use glib::subclass::prelude::*;
 use gst::prelude::*;
 use gst::subclass::prelude::*;
+use gst::{gst_debug, gst_element_error, gst_error, gst_fixme, gst_log, gst_trace, gst_warning};
 
 use std::sync::{Mutex, MutexGuard};
 
+use once_cell::sync::Lazy;
+
 use super::parser::{SccLine, SccParser};
 use crate::line_reader::LineReader;
 use crate::parser_utils::TimeCode;
 
-lazy_static! {
-    static ref CAT: gst::DebugCategory = {
-        gst::DebugCategory::new(
-            "sccparse",
-            gst::DebugColorFlags::empty(),
-            Some("Scc Parser Element"),
-        )
-    };
-}
+static CAT: Lazy<gst::DebugCategory> = Lazy::new(|| {
+    gst::DebugCategory::new(
+        "sccparse",
+        gst::DebugColorFlags::empty(),
+        Some("Scc Parser Element"),
+    )
+});
 
 #[derive(Debug)]
 struct State {
@@ -430,7 +431,7 @@ impl ObjectSubclass for SccParse {
     type Instance = gst::subclass::ElementInstanceStruct<Self>;
     type Class = subclass::simple::ClassStruct<Self>;
 
-    glib_object_subclass!();
+    glib::glib_object_subclass!();
 
     fn with_class(klass: &Self::Class) -> Self {
         let templ = klass.get_pad_template("sink").unwrap();
diff --git a/video/closedcaption/src/scc_parse/mod.rs b/video/closedcaption/src/scc_parse/mod.rs
index 19cf93f8..05067d6e 100644
--- a/video/closedcaption/src/scc_parse/mod.rs
+++ b/video/closedcaption/src/scc_parse/mod.rs
@@ -21,7 +21,7 @@ use glib::prelude::*;
 mod imp;
 mod parser;
 
-glib_wrapper! {
+glib::glib_wrapper! {
     pub struct SccParse(ObjectSubclass<imp::SccParse>) @extends gst::Element, gst::Object;
 }
 
diff --git a/video/closedcaption/src/tttocea608/imp.rs b/video/closedcaption/src/tttocea608/imp.rs
index 8b2bbc14..e99e2c0e 100644
--- a/video/closedcaption/src/tttocea608/imp.rs
+++ b/video/closedcaption/src/tttocea608/imp.rs
@@ -20,6 +20,9 @@ use glib::subclass;
 use glib::subclass::prelude::*;
 use gst::prelude::*;
 use gst::subclass::prelude::*;
+use gst::{gst_debug, gst_element_error, gst_error, gst_log, gst_trace, gst_warning};
+
+use once_cell::sync::Lazy;
 
 use crate::ffi;
 use std::sync::Mutex;
@@ -263,14 +266,15 @@ pub struct TtToCea608 {
     settings: Mutex<Settings>,
 }
 
-lazy_static! {
-    static ref CAT: gst::DebugCategory = gst::DebugCategory::new(
+static CAT: Lazy<gst::DebugCategory> = Lazy::new(|| {
+    gst::DebugCategory::new(
         "tttocea608",
         gst::DebugColorFlags::empty(),
         Some("TT CEA 608 Element"),
-    );
-    static ref SPACE: u16 = eia608_from_utf8_1(&[0x20, 0, 0, 0, 0]);
-}
+    )
+});
+
+static SPACE: Lazy<u16> = Lazy::new(|| eia608_from_utf8_1(&[0x20, 0, 0, 0, 0]));
 
 impl TtToCea608 {
     fn push_gap(&self, last_frame_no: u64, new_frame_no: u64) {
@@ -786,7 +790,7 @@ impl ObjectSubclass for TtToCea608 {
     type Instance = gst::subclass::ElementInstanceStruct<Self>;
     type Class = subclass::simple::ClassStruct<Self>;
 
-    glib_object_subclass!();
+    glib::glib_object_subclass!();
 
     fn with_class(klass: &Self::Class) -> Self {
         let templ = klass.get_pad_template("sink").unwrap();
diff --git a/video/closedcaption/src/tttocea608/mod.rs b/video/closedcaption/src/tttocea608/mod.rs
index 790e7151..e9004fea 100644
--- a/video/closedcaption/src/tttocea608/mod.rs
+++ b/video/closedcaption/src/tttocea608/mod.rs
@@ -16,11 +16,10 @@
 // Boston, MA 02110-1335, USA.
 
 use glib::prelude::*;
-use glib::GEnum;
 
 mod imp;
 
-#[derive(Debug, Eq, PartialEq, Ord, PartialOrd, Hash, Clone, Copy, GEnum)]
+#[derive(Debug, Eq, PartialEq, Ord, PartialOrd, Hash, Clone, Copy, glib::GEnum)]
 #[repr(u32)]
 #[genum(type_name = "GstTtToCea608Mode")]
 enum Mode {
@@ -30,7 +29,7 @@ enum Mode {
     RollUp4,
 }
 
-glib_wrapper! {
+glib::glib_wrapper! {
     pub struct TtToCea608(ObjectSubclass<imp::TtToCea608>) @extends gst::Element, gst::Object;
 }
 
diff --git a/video/closedcaption/tests/ccdetect.rs b/video/closedcaption/tests/ccdetect.rs
index 0123a4dd..97c215c4 100644
--- a/video/closedcaption/tests/ccdetect.rs
+++ b/video/closedcaption/tests/ccdetect.rs
@@ -15,13 +15,12 @@
 // Free Software Foundation, Inc., 51 Franklin Street, Suite 500,
 // Boston, MA 02110-1335, USA.
 
-#[macro_use]
-extern crate pretty_assertions;
-
 use gst::prelude::*;
 
 use std::sync::{Arc, Mutex};
 
+use pretty_assertions::assert_eq;
+
 fn init() {
     use std::sync::Once;
     static INIT: Once = Once::new();
diff --git a/video/closedcaption/tests/cea608tott.rs b/video/closedcaption/tests/cea608tott.rs
index 4489d6ac..dc891666 100644
--- a/video/closedcaption/tests/cea608tott.rs
+++ b/video/closedcaption/tests/cea608tott.rs
@@ -15,11 +15,10 @@
 // Free Software Foundation, Inc., 51 Franklin Street, Suite 500,
 // Boston, MA 02110-1335, USA.
 
-#[macro_use]
-extern crate pretty_assertions;
-
 use gst::prelude::*;
 
+use pretty_assertions::assert_eq;
+
 fn init() {
     use std::sync::Once;
     static INIT: Once = Once::new();
diff --git a/video/closedcaption/tests/mcc_enc.rs b/video/closedcaption/tests/mcc_enc.rs
index 1fbfe89f..e0e4d407 100644
--- a/video/closedcaption/tests/mcc_enc.rs
+++ b/video/closedcaption/tests/mcc_enc.rs
@@ -15,11 +15,10 @@
 // Free Software Foundation, Inc., 51 Franklin Street, Suite 500,
 // Boston, MA 02110-1335, USA.
 
-#[macro_use]
-extern crate pretty_assertions;
-
 use glib::prelude::*;
 
+use pretty_assertions::assert_eq;
+
 fn init() {
     use std::sync::Once;
     static INIT: Once = Once::new();
diff --git a/video/closedcaption/tests/mcc_parse.rs b/video/closedcaption/tests/mcc_parse.rs
index 0ad06ee9..81cad922 100644
--- a/video/closedcaption/tests/mcc_parse.rs
+++ b/video/closedcaption/tests/mcc_parse.rs
@@ -15,11 +15,9 @@
 // Free Software Foundation, Inc., 51 Franklin Street, Suite 500,
 // Boston, MA 02110-1335, USA.
 
-#[macro_use]
-extern crate pretty_assertions;
-
 use gst::prelude::*;
 use gst::EventView;
+use pretty_assertions::assert_eq;
 use rand::{Rng, SeedableRng};
 use std::path::PathBuf;
 
diff --git a/video/closedcaption/tests/scc_enc.rs b/video/closedcaption/tests/scc_enc.rs
index 2115156c..e5d00c90 100644
--- a/video/closedcaption/tests/scc_enc.rs
+++ b/video/closedcaption/tests/scc_enc.rs
@@ -16,8 +16,7 @@
 // Free Software Foundation, Inc., 51 Franklin Street, Suite 500,
 // Boston, MA 02110-1335, USA.
 
-#[macro_use]
-extern crate pretty_assertions;
+use pretty_assertions::assert_eq;
 
 fn init() {
     use std::sync::Once;
diff --git a/video/closedcaption/tests/scc_parse.rs b/video/closedcaption/tests/scc_parse.rs
index cbabccdb..3e0a449f 100644
--- a/video/closedcaption/tests/scc_parse.rs
+++ b/video/closedcaption/tests/scc_parse.rs
@@ -16,11 +16,9 @@
 // Free Software Foundation, Inc., 51 Franklin Street, Suite 500,
 // Boston, MA 02110-1335, USA.
 
-#[macro_use]
-extern crate pretty_assertions;
-
 use gst::prelude::*;
 use gst_video::{ValidVideoTimeCode, VideoTimeCode};
+use pretty_assertions::assert_eq;
 use rand::{Rng, SeedableRng};
 use std::collections::VecDeque;
 
diff --git a/video/closedcaption/tests/tttocea608.rs b/video/closedcaption/tests/tttocea608.rs
index 8153a246..24d91e96 100644
--- a/video/closedcaption/tests/tttocea608.rs
+++ b/video/closedcaption/tests/tttocea608.rs
@@ -15,9 +15,8 @@
 // Free Software Foundation, Inc., 51 Franklin Street, Suite 500,
 // Boston, MA 02110-1335, USA.
 
-#[macro_use]
-extern crate pretty_assertions;
 use gst::EventView;
+use pretty_assertions::assert_eq;
 
 fn init() {
     use std::sync::Once;
diff --git a/video/dav1d/Cargo.toml b/video/dav1d/Cargo.toml
index df6582ab..476fab14 100644
--- a/video/dav1d/Cargo.toml
+++ b/video/dav1d/Cargo.toml
@@ -10,10 +10,10 @@ description = "Dav1d Plugin"
 [dependencies]
 dav1d = "0.5"
 glib = { git = "https://github.com/gtk-rs/gtk-rs" }
-gstreamer = { git = "https://gitlab.freedesktop.org/gstreamer/gstreamer-rs" }
-gstreamer-base = { git = "https://gitlab.freedesktop.org/gstreamer/gstreamer-rs" }
-gstreamer-video = { git = "https://gitlab.freedesktop.org/gstreamer/gstreamer-rs", features = ["v1_12"] }
-lazy_static = "1.0"
+gst = { package = "gstreamer", git = "https://gitlab.freedesktop.org/gstreamer/gstreamer-rs" }
+gst-base = { package = "gstreamer-base", git = "https://gitlab.freedesktop.org/gstreamer/gstreamer-rs" }
+gst-video = { package = "gstreamer-video", git = "https://gitlab.freedesktop.org/gstreamer/gstreamer-rs", features = ["v1_12"] }
+once_cell = "1.0"
 
 [lib]
 name = "gstrsdav1d"
diff --git a/video/dav1d/src/dav1ddec/imp.rs b/video/dav1d/src/dav1ddec/imp.rs
index 3e4983be..0e43ab2f 100644
--- a/video/dav1d/src/dav1ddec/imp.rs
+++ b/video/dav1d/src/dav1ddec/imp.rs
@@ -10,9 +10,12 @@ use glib::subclass;
 use glib::subclass::prelude::*;
 use gst::prelude::*;
 use gst::subclass::prelude::*;
+use gst::{gst_debug, gst_error, gst_info, gst_trace, gst_warning};
 use gst_video::prelude::*;
 use gst_video::subclass::prelude::*;
 
+use once_cell::sync::Lazy;
+
 use std::convert::TryInto;
 use std::i32;
 use std::str::FromStr;
@@ -30,13 +33,13 @@ pub struct Dav1dDec {
     negotiation_infos: Mutex<NegotiationInfos>,
 }
 
-lazy_static! {
-    static ref CAT: gst::DebugCategory = gst::DebugCategory::new(
+static CAT: Lazy<gst::DebugCategory> = Lazy::new(|| {
+    gst::DebugCategory::new(
         "dav1ddec",
         gst::DebugColorFlags::empty(),
         Some("Dav1d AV1 decoder"),
-    );
-}
+    )
+});
 
 impl Dav1dDec {
     pub fn gst_video_format_from_dav1d_picture(
@@ -349,7 +352,7 @@ impl ObjectSubclass for Dav1dDec {
     type Instance = gst::subclass::ElementInstanceStruct<Self>;
     type Class = subclass::simple::ClassStruct<Self>;
 
-    glib_object_subclass!();
+    glib::glib_object_subclass!();
 
     fn new() -> Self {
         Self {
diff --git a/video/dav1d/src/dav1ddec/mod.rs b/video/dav1d/src/dav1ddec/mod.rs
index 276fd089..2576c237 100644
--- a/video/dav1d/src/dav1ddec/mod.rs
+++ b/video/dav1d/src/dav1ddec/mod.rs
@@ -10,7 +10,7 @@ use glib::prelude::*;
 
 mod imp;
 
-glib_wrapper! {
+glib::glib_wrapper! {
     pub struct Dav1dDec(ObjectSubclass<imp::Dav1dDec>) @extends gst_video::VideoDecoder, gst::Element, gst::Object;
 }
 
diff --git a/video/dav1d/src/lib.rs b/video/dav1d/src/lib.rs
index 2567134b..3f7b9c89 100644
--- a/video/dav1d/src/lib.rs
+++ b/video/dav1d/src/lib.rs
@@ -6,16 +6,6 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-#[macro_use]
-extern crate glib;
-#[macro_use]
-extern crate gstreamer as gst;
-extern crate dav1d;
-extern crate gstreamer_base as gst_base;
-extern crate gstreamer_video as gst_video;
-#[macro_use]
-extern crate lazy_static;
-
 mod dav1ddec;
 
 fn plugin_init(plugin: &gst::Plugin) -> Result<(), glib::BoolError> {
@@ -23,7 +13,7 @@ fn plugin_init(plugin: &gst::Plugin) -> Result<(), glib::BoolError> {
     Ok(())
 }
 
-gst_plugin_define!(
+gst::gst_plugin_define!(
     rsdav1d,
     env!("CARGO_PKG_DESCRIPTION"),
     plugin_init,
diff --git a/video/flavors/Cargo.toml b/video/flavors/Cargo.toml
index bb5573ce..aa2c6ddb 100644
--- a/video/flavors/Cargo.toml
+++ b/video/flavors/Cargo.toml
@@ -9,14 +9,14 @@ description = "Rust FLV Plugin"
 
 [dependencies]
 glib = { git = "https://github.com/gtk-rs/gtk-rs" }
-gstreamer = { git = "https://gitlab.freedesktop.org/gstreamer/gstreamer-rs" }
-gstreamer-base = { git = "https://gitlab.freedesktop.org/gstreamer/gstreamer-rs" }
+gst = { package = "gstreamer", git = "https://gitlab.freedesktop.org/gstreamer/gstreamer-rs" }
+gst-base = { package = "gstreamer-base", git = "https://gitlab.freedesktop.org/gstreamer/gstreamer-rs" }
 num-rational = { version = "0.3", default-features = false, features = [] }
 nom = "6"
 flavors = { git = "https://github.com/rust-av/flavors" }
 muldiv = "1.0"
 byteorder = "1.0"
-lazy_static = "1.0"
+once_cell = "1.0"
 smallvec = "1.0"
 
 [lib]
diff --git a/video/flavors/src/flvdemux/imp.rs b/video/flavors/src/flvdemux/imp.rs
index a4e54117..a907440f 100644
--- a/video/flavors/src/flvdemux/imp.rs
+++ b/video/flavors/src/flvdemux/imp.rs
@@ -16,20 +16,23 @@ use ::flavors::parser as flavors;
 use glib::subclass;
 use gst::prelude::*;
 use gst::subclass::prelude::*;
+use gst::{
+    gst_debug, gst_error, gst_error_msg, gst_log, gst_loggable_error, gst_trace, gst_warning,
+};
 
 use num_rational::Rational32;
 
+use once_cell::sync::Lazy;
+
 use smallvec::SmallVec;
 
-lazy_static! {
-    static ref CAT: gst::DebugCategory = {
-        gst::DebugCategory::new(
-            "rsflvdemux",
-            gst::DebugColorFlags::empty(),
-            Some("Rust FLV demuxer"),
-        )
-    };
-}
+static CAT: Lazy<gst::DebugCategory> = Lazy::new(|| {
+    gst::DebugCategory::new(
+        "rsflvdemux",
+        gst::DebugColorFlags::empty(),
+        Some("Rust FLV demuxer"),
+    )
+});
 
 pub struct FlvDemux {
     sinkpad: gst::Pad,
@@ -126,7 +129,7 @@ impl ObjectSubclass for FlvDemux {
     type Instance = gst::subclass::ElementInstanceStruct<Self>;
     type Class = subclass::simple::ClassStruct<Self>;
 
-    glib_object_subclass!();
+    glib::glib_object_subclass!();
 
     fn with_class(klass: &Self::Class) -> Self {
         let templ = klass.get_pad_template("sink").unwrap();
@@ -374,7 +377,7 @@ impl FlvDemux {
     }
 
     fn sink_event(&self, pad: &gst::Pad, element: &super::FlvDemux, event: gst::Event) -> bool {
-        use crate::gst::EventView;
+        use gst::EventView;
 
         gst_log!(CAT, obj: pad, "Handling event {:?}", event);
         match event.view() {
@@ -404,7 +407,7 @@ impl FlvDemux {
         element: &super::FlvDemux,
         query: &mut gst::QueryRef,
     ) -> bool {
-        use crate::gst::QueryView;
+        use gst::QueryView;
 
         match query.view_mut() {
             QueryView::Position(ref mut q) => {
@@ -452,7 +455,7 @@ impl FlvDemux {
     }
 
     fn src_event(&self, pad: &gst::Pad, element: &super::FlvDemux, event: gst::Event) -> bool {
-        use crate::gst::EventView;
+        use gst::EventView;
 
         match event.view() {
             EventView::Seek(..) => {
diff --git a/video/flavors/src/flvdemux/mod.rs b/video/flavors/src/flvdemux/mod.rs
index aca2b41a..dc1e341d 100644
--- a/video/flavors/src/flvdemux/mod.rs
+++ b/video/flavors/src/flvdemux/mod.rs
@@ -10,7 +10,7 @@ use glib::prelude::*;
 
 mod imp;
 
-glib_wrapper! {
+glib::glib_wrapper! {
     pub struct FlvDemux(ObjectSubclass<imp::FlvDemux>) @extends gst::Element, gst::Object;
 }
 
diff --git a/video/flavors/src/lib.rs b/video/flavors/src/lib.rs
index 479716ed..af01fcee 100644
--- a/video/flavors/src/lib.rs
+++ b/video/flavors/src/lib.rs
@@ -6,15 +6,6 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-#[macro_use]
-extern crate glib;
-#[macro_use]
-extern crate gstreamer as gst;
-extern crate gstreamer_base as gst_base;
-
-#[macro_use]
-extern crate lazy_static;
-
 mod bytes;
 mod flvdemux;
 
@@ -22,7 +13,7 @@ fn plugin_init(plugin: &gst::Plugin) -> Result<(), glib::BoolError> {
     flvdemux::register(plugin)
 }
 
-gst_plugin_define!(
+gst::gst_plugin_define!(
     rsflv,
     env!("CARGO_PKG_DESCRIPTION"),
     plugin_init,
diff --git a/video/gif/Cargo.toml b/video/gif/Cargo.toml
index 07995281..f25283fe 100644
--- a/video/gif/Cargo.toml
+++ b/video/gif/Cargo.toml
@@ -9,13 +9,15 @@ description = "GStreamer GIF plugin"
 
 [dependencies]
 glib = { git = "https://github.com/gtk-rs/gtk-rs" }
-gstreamer = { git = "https://gitlab.freedesktop.org/gstreamer/gstreamer-rs" }
-gstreamer-video = { git = "https://gitlab.freedesktop.org/gstreamer/gstreamer-rs" }
-gstreamer-check = { git = "https://gitlab.freedesktop.org/gstreamer/gstreamer-rs" }
+gst = { package = "gstreamer", git = "https://gitlab.freedesktop.org/gstreamer/gstreamer-rs" }
+gst-video = { package = "gstreamer-video", git = "https://gitlab.freedesktop.org/gstreamer/gstreamer-rs" }
 gif = "0.11"
 atomic_refcell = "0.1"
 once_cell = "1"
 
+[dev-dependencies]
+gst-check = { package = "gstreamer-check", git = "https://gitlab.freedesktop.org/gstreamer/gstreamer-rs" }
+
 [lib]
 name = "gstgif"
 crate-type = ["cdylib", "rlib", "staticlib"]
diff --git a/video/gif/examples/testvideosrc2gif.rs b/video/gif/examples/testvideosrc2gif.rs
index 51083144..7f4ef530 100644
--- a/video/gif/examples/testvideosrc2gif.rs
+++ b/video/gif/examples/testvideosrc2gif.rs
@@ -15,7 +15,6 @@
 // Free Software Foundation, Inc., 51 Franklin Street, Suite 500,
 // Boston, MA 02110-1335, USA.
 
-extern crate gstreamer as gst;
 use gst::prelude::*;
 
 const ENCODE_PIPELINE: &str = "videotestsrc is-live=false num-buffers=100 ! videoconvert ! gifenc ! filesink location=test.gif";
diff --git a/video/gif/src/gifenc/imp.rs b/video/gif/src/gifenc/imp.rs
index 962d1156..e6b4598e 100644
--- a/video/gif/src/gifenc/imp.rs
+++ b/video/gif/src/gifenc/imp.rs
@@ -10,6 +10,7 @@ use atomic_refcell::AtomicRefCell;
 use glib::subclass;
 use glib::subclass::prelude::*;
 use gst::subclass::prelude::*;
+use gst::{gst_debug, gst_element_error, gst_loggable_error};
 use gst_video::prelude::*;
 use gst_video::subclass::prelude::*;
 use once_cell::sync::Lazy;
@@ -148,7 +149,7 @@ impl ObjectSubclass for GifEnc {
     type Instance = gst::subclass::ElementInstanceStruct<Self>;
     type Class = subclass::simple::ClassStruct<Self>;
 
-    glib_object_subclass!();
+    glib::glib_object_subclass!();
 
     fn new() -> Self {
         Self {
diff --git a/video/gif/src/gifenc/mod.rs b/video/gif/src/gifenc/mod.rs
index 40543d41..e53d2b1c 100644
--- a/video/gif/src/gifenc/mod.rs
+++ b/video/gif/src/gifenc/mod.rs
@@ -10,7 +10,7 @@ use glib::prelude::*;
 
 mod imp;
 
-glib_wrapper! {
+glib::glib_wrapper! {
     pub struct GifEnc(ObjectSubclass<imp::GifEnc>) @extends gst_video::VideoEncoder, gst::Element, gst::Object;
 }
 
diff --git a/video/gif/src/lib.rs b/video/gif/src/lib.rs
index 7b14fbd0..7e090338 100644
--- a/video/gif/src/lib.rs
+++ b/video/gif/src/lib.rs
@@ -6,19 +6,13 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-#[macro_use]
-extern crate glib;
-#[macro_use]
-extern crate gstreamer as gst;
-extern crate gstreamer_video as gst_video;
-
 mod gifenc;
 
 fn plugin_init(plugin: &gst::Plugin) -> Result<(), glib::BoolError> {
     gifenc::register(plugin)
 }
 
-gst_plugin_define!(
+gst::gst_plugin_define!(
     gifenc,
     env!("CARGO_PKG_DESCRIPTION"),
     plugin_init,
diff --git a/video/gif/tests/gifenc.rs b/video/gif/tests/gifenc.rs
index 11a6975d..65d4d170 100644
--- a/video/gif/tests/gifenc.rs
+++ b/video/gif/tests/gifenc.rs
@@ -6,13 +6,6 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-extern crate glib;
-extern crate gstreamer as gst;
-extern crate gstreamer_check as gst_check;
-extern crate gstreamer_video as gst_video;
-
-extern crate gstgif;
-
 fn init() {
     use std::sync::Once;
     static INIT: Once = Once::new();
diff --git a/video/rav1e/Cargo.toml b/video/rav1e/Cargo.toml
index 5ed1db60..8e0d2f30 100644
--- a/video/rav1e/Cargo.toml
+++ b/video/rav1e/Cargo.toml
@@ -9,12 +9,14 @@ edition = "2018"
 
 [dependencies]
 glib = { git = "https://github.com/gtk-rs/gtk-rs" }
-gstreamer = { git = "https://gitlab.freedesktop.org/gstreamer/gstreamer-rs" }
-gstreamer-video = { git = "https://gitlab.freedesktop.org/gstreamer/gstreamer-rs", features = ["v1_12"] }
-gstreamer-check = { git = "https://gitlab.freedesktop.org/gstreamer/gstreamer-rs" }
+gst = { package = "gstreamer", git = "https://gitlab.freedesktop.org/gstreamer/gstreamer-rs" }
+gst-video = { package = "gstreamer-video", git = "https://gitlab.freedesktop.org/gstreamer/gstreamer-rs", features = ["v1_12"] }
 rav1e = { version = "0.3", default-features = false }
 atomic_refcell = "0.1"
-lazy_static = "1.0"
+once_cell = "1.0"
+
+[dev-dependencies]
+gst-check = { package = "gstreamer-check", git = "https://gitlab.freedesktop.org/gstreamer/gstreamer-rs" }
 
 [lib]
 name = "gstrav1e"
diff --git a/video/rav1e/src/lib.rs b/video/rav1e/src/lib.rs
index 452ee2f2..0dcb12f3 100644
--- a/video/rav1e/src/lib.rs
+++ b/video/rav1e/src/lib.rs
@@ -6,21 +6,13 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-#[macro_use]
-extern crate glib;
-#[macro_use]
-extern crate gstreamer as gst;
-extern crate gstreamer_video as gst_video;
-#[macro_use]
-extern crate lazy_static;
-
 mod rav1enc;
 
 fn plugin_init(plugin: &gst::Plugin) -> Result<(), glib::BoolError> {
     rav1enc::register(plugin)
 }
 
-gst_plugin_define!(
+gst::gst_plugin_define!(
     rav1e,
     env!("CARGO_PKG_DESCRIPTION"),
     plugin_init,
diff --git a/video/rav1e/src/rav1enc/imp.rs b/video/rav1e/src/rav1enc/imp.rs
index 0a46eacb..f28bd99e 100644
--- a/video/rav1e/src/rav1enc/imp.rs
+++ b/video/rav1e/src/rav1enc/imp.rs
@@ -10,8 +10,10 @@ use atomic_refcell::AtomicRefCell;
 use glib::subclass;
 use glib::subclass::prelude::*;
 use gst::subclass::prelude::*;
+use gst::{gst_debug, gst_element_error, gst_loggable_error};
 use gst_video::prelude::*;
 use gst_video::subclass::prelude::*;
+use once_cell::sync::Lazy;
 use rav1e::color;
 use rav1e::config;
 use rav1e::data;
@@ -286,13 +288,13 @@ pub struct Rav1Enc {
     settings: Mutex<Settings>,
 }
 
-lazy_static! {
-    static ref CAT: gst::DebugCategory = gst::DebugCategory::new(
+static CAT: Lazy<gst::DebugCategory> = Lazy::new(|| {
+    gst::DebugCategory::new(
         "rav1enc",
         gst::DebugColorFlags::empty(),
         Some("rav1e AV1 encoder"),
-    );
-}
+    )
+});
 
 impl ObjectSubclass for Rav1Enc {
     const NAME: &'static str = "Rav1Enc";
@@ -301,7 +303,7 @@ impl ObjectSubclass for Rav1Enc {
     type Instance = gst::subclass::ElementInstanceStruct<Self>;
     type Class = subclass::simple::ClassStruct<Self>;
 
-    glib_object_subclass!();
+    glib::glib_object_subclass!();
 
     fn new() -> Self {
         Self {
diff --git a/video/rav1e/src/rav1enc/mod.rs b/video/rav1e/src/rav1enc/mod.rs
index b953bf9f..a4cc4089 100644
--- a/video/rav1e/src/rav1enc/mod.rs
+++ b/video/rav1e/src/rav1enc/mod.rs
@@ -10,7 +10,7 @@ use glib::prelude::*;
 
 mod imp;
 
-glib_wrapper! {
+glib::glib_wrapper! {
     pub struct Rav1Enc(ObjectSubclass<imp::Rav1Enc>) @extends gst_video::VideoEncoder, gst::Element, gst::Object;
 }
 
diff --git a/video/rav1e/tests/rav1enc.rs b/video/rav1e/tests/rav1enc.rs
index ec259143..40e456ad 100644
--- a/video/rav1e/tests/rav1enc.rs
+++ b/video/rav1e/tests/rav1enc.rs
@@ -6,13 +6,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-extern crate glib;
 use glib::prelude::*;
-extern crate gstreamer as gst;
-extern crate gstreamer_check as gst_check;
-extern crate gstreamer_video as gst_video;
-
-extern crate gstrav1e;
 
 fn init() {
     use std::sync::Once;
diff --git a/video/rspng/Cargo.toml b/video/rspng/Cargo.toml
index b7d52446..87a7c405 100644
--- a/video/rspng/Cargo.toml
+++ b/video/rspng/Cargo.toml
@@ -11,12 +11,14 @@ description = "An PNG encoder/decoder written in pure Rust"
 glib = { git = "https://github.com/gtk-rs/gtk-rs" }
 gst = { package = "gstreamer", git = "https://gitlab.freedesktop.org/gstreamer/gstreamer-rs" }
 gst_video = { package = "gstreamer-video", git = "https://gitlab.freedesktop.org/gstreamer/gstreamer-rs" }
-gst_check = { package = "gstreamer-check", git = "https://gitlab.freedesktop.org/gstreamer/gstreamer-rs" }
 png = "0.16.3"
 once_cell = "1"
 parking_lot = "0.11"
 atomic_refcell = "0.1"
 
+[dev-dependencies]
+gst_check = { package = "gstreamer-check", git = "https://gitlab.freedesktop.org/gstreamer/gstreamer-rs" }
+
 [lib]
 name = "gstrspng"
 crate-type = ["cdylib", "rlib", "staticlib"]