multimedia/gstreamer1-plugins-rust: add new port

Repository containing various GStreamer plugins and elements written
in the Rust programming language:

* generic
  - file: A Rust implementation of the standard filesrc and filesink
    elements

  - sodium: Elements to perform encryption and decryption using
    libsodium.

  - threadshare: Some popular threaded elements reimplemented using common
    thread-sharing infrastructure.

* net
  - reqwest: An HTTP source element based on the reqwest library.

  - rusoto: A source and sink plugin to talk to the Amazon S3 object
    storage system using the Rusoto library.

* audio
  - audiofx: Plugins to apply audio effects to a stream (such as
    adding echo/reverb, removing noise or normalization).

  - claxon: A FLAC decoder based on the Claxon library.

  - csound: A plugin to implement audio effects using the Csound
    library.

  - lewton: A Vorbis decoder based on the lewton library.

* video
  - cdg: A parser and renderer for CD+G karaoke data.

  - closedcaption: Plugins to deal with several closed caption formats
    (MCC, SCC, EIA-608/CEA-608 and timed text).

  - dav1d: AV1 decoder based on the dav1d library.

  - flavors: FLV demuxer based on the flavors library.

  - gif: A GIF encoder based on the gif library.

  - rav1e: AV1 encoder based on the rav1e library.

* utils
  - fallbackswitch: Aggregator element that allows falling back to a
    different sink pad after a timeout.

  - togglerecord: Element to enable starting and stopping multiple
    streams together.

https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs

1 files changed, 38 insertions, 0 deletions

diff --git a/multimedia/gstreamer1-plugins-rust/files/patch-gst-1.16 b/multimedia/gstreamer1-plugins-rust/files/patch-gst-1.16
new file mode 100644
index 000000000000..61b69b8708e7
--- /dev/null
+++ b/multimedia/gstreamer1-plugins-rust/files/patch-gst-1.16
@@ -0,0 +1,38 @@
+Drop after multimedia/gstreamer1-plugins is updated to 1.18 or later
+
+Package dependency requirement 'gstreamer-1.0 >= 1.18' could not be satisfied.
+Package 'gstreamer-1.0' has version '1.16.2', required version is '>= 1.18'
+
+error[E0599]: no method named `pull_until_eos` found for struct `Harness` in the current scope
+   --> audio/audiofx/tests/ebur128level.rs:113:33
+    |
+113 |     while let Some(_buffer) = h.pull_until_eos().unwrap() {
+    |                                 ^^^^^^^^^^^^^^ method not found in `Harness`
+
+--- audio/audiofx/Cargo.toml
++++ audio/audiofx/Cargo.toml	2021-08-15 06:32:37.895468529 +0000
+@@ -25,7 +25,7 @@ crate-type = ["cdylib", "rlib"]
+ path = "src/lib.rs"
+ 
+ [dev-dependencies]
+-gst-check = { package = "gstreamer-check", version = "0.17", features = ["v1_18"] }
++gst-check = { package = "gstreamer-check", version = "0.17", features = ["v1_16"] }
+ gst-app = { package = "gstreamer-app", version = "0.17" }
+ 
+ [build-dependencies]
+--- audio/audiofx/tests/ebur128level.rs.orig	2021-08-05 15:13:43 UTC
++++ audio/audiofx/tests/ebur128level.rs
+@@ -110,7 +110,13 @@ fn run_test(layout: gst_audio::AudioLayout, format: gs
+ 
+     // Pull all buffers until EOS
+     let mut num_buffers = 0;
++    #[cfg(feature = "v1_18")]
+     while let Some(_buffer) = h.pull_until_eos().unwrap() {
++        num_buffers += 1;
++    }
++    #[cfg(not(feature = "v1_18"))]
++    for _ in 0..5 {
++        h.pull().unwrap();
+         num_buffers += 1;
+     }
+     assert_eq!(num_buffers, 5);