zarr-developers · martindurant · Mar 18, 2021 · Feb 17, 2021 · Feb 17, 2021 · Feb 17, 2021
diff --git a/docs/index.rst b/docs/index.rst
@@ -78,6 +78,7 @@ Contents
     pickles
     msgpacks
     vlen
+    shuffle
     release
     contributing
 
@@ -96,6 +97,8 @@ documentation, code reviews, comments and/or ideas:
 * :user:`Trevor Manz <manzt>`
 * :user:`Grzegorz Bokota <Czaki>`
 * :user:`Josh Moore <joshmoore>`
+* :user:`Martin Durant <mdurant>`
+* :user:`Paul Branson <pbranson>`
 
 Numcodecs bundles the `c-blosc <https://github.com/Blosc/c-blosc>`_ library.
 

diff --git a/docs/release.rst b/docs/release.rst
@@ -6,6 +6,11 @@ Release notes
 Unreleased
 ----------
 
+* Add support for Python 3.9 and Update GitHub Actions.
+
+* Add support for byte Shuffle filter
+  By :user:`Paul Branson <pbranson>` and :user:`Martin Durant <mdurant>` :issue:`273`.
+
 * Update Windows + Mac CI to run all tests.
   By :user:`Jackson Maxfield Brown <JacksonMaxfield>`, :issue:`276`.
   Help from :user:`Oleg Höfling <hoefling>`, :issue:`273`.

diff --git a/docs/shuffle.rst b/docs/shuffle.rst
@@ -0,0 +1,9 @@
+Shuffle
+=======
+.. automodule:: numcodecs.shuffle
+
+.. autoclass:: Shuffle
+
+    .. autoattribute:: codec_id
+    .. automethod:: encode
+    .. automethod:: decode
diff --git a/fixture/shuffle/array.00.npy b/fixture/shuffle/array.00.npy
diff --git a/fixture/shuffle/array.01.npy b/fixture/shuffle/array.01.npy
diff --git a/fixture/shuffle/array.02.npy b/fixture/shuffle/array.02.npy
diff --git a/fixture/shuffle/array.03.npy b/fixture/shuffle/array.03.npy
diff --git a/fixture/shuffle/array.04.npy b/fixture/shuffle/array.04.npy
diff --git a/fixture/shuffle/array.05.npy b/fixture/shuffle/array.05.npy
diff --git a/fixture/shuffle/array.06.npy b/fixture/shuffle/array.06.npy
diff --git a/fixture/shuffle/array.07.npy b/fixture/shuffle/array.07.npy
diff --git a/fixture/shuffle/array.08.npy b/fixture/shuffle/array.08.npy
diff --git a/fixture/shuffle/array.09.npy b/fixture/shuffle/array.09.npy
diff --git a/fixture/shuffle/array.10.npy b/fixture/shuffle/array.10.npy
diff --git a/fixture/shuffle/array.11.npy b/fixture/shuffle/array.11.npy
diff --git a/fixture/shuffle/array.12.npy b/fixture/shuffle/array.12.npy
diff --git a/fixture/shuffle/codec.00/config.json b/fixture/shuffle/codec.00/config.json
@@ -0,0 +1,4 @@
+{
+    "elementsize": 4,
+    "id": "shuffle"
+}
diff --git a/fixture/shuffle/codec.00/encoded.00.dat b/fixture/shuffle/codec.00/encoded.00.dat
diff --git a/fixture/shuffle/codec.00/encoded.01.dat b/fixture/shuffle/codec.00/encoded.01.dat
diff --git a/fixture/shuffle/codec.00/encoded.02.dat b/fixture/shuffle/codec.00/encoded.02.dat
diff --git a/fixture/shuffle/codec.00/encoded.03.dat b/fixture/shuffle/codec.00/encoded.03.dat
diff --git a/fixture/shuffle/codec.00/encoded.04.dat b/fixture/shuffle/codec.00/encoded.04.dat
diff --git a/fixture/shuffle/codec.00/encoded.05.dat b/fixture/shuffle/codec.00/encoded.05.dat
diff --git a/fixture/shuffle/codec.00/encoded.06.dat b/fixture/shuffle/codec.00/encoded.06.dat
diff --git a/fixture/shuffle/codec.00/encoded.07.dat b/fixture/shuffle/codec.00/encoded.07.dat
diff --git a/fixture/shuffle/codec.00/encoded.08.dat b/fixture/shuffle/codec.00/encoded.08.dat
diff --git a/fixture/shuffle/codec.00/encoded.09.dat b/fixture/shuffle/codec.00/encoded.09.dat
diff --git a/fixture/shuffle/codec.00/encoded.10.dat b/fixture/shuffle/codec.00/encoded.10.dat
diff --git a/fixture/shuffle/codec.00/encoded.11.dat b/fixture/shuffle/codec.00/encoded.11.dat
diff --git a/fixture/shuffle/codec.00/encoded.12.dat b/fixture/shuffle/codec.00/encoded.12.dat
diff --git a/fixture/shuffle/codec.01/config.json b/fixture/shuffle/codec.01/config.json
@@ -0,0 +1,4 @@
+{
+    "elementsize": 0,
+    "id": "shuffle"
+}
diff --git a/fixture/shuffle/codec.01/encoded.00.dat b/fixture/shuffle/codec.01/encoded.00.dat
diff --git a/fixture/shuffle/codec.01/encoded.01.dat b/fixture/shuffle/codec.01/encoded.01.dat
diff --git a/fixture/shuffle/codec.01/encoded.02.dat b/fixture/shuffle/codec.01/encoded.02.dat
diff --git a/fixture/shuffle/codec.01/encoded.03.dat b/fixture/shuffle/codec.01/encoded.03.dat
diff --git a/fixture/shuffle/codec.01/encoded.04.dat b/fixture/shuffle/codec.01/encoded.04.dat
diff --git a/fixture/shuffle/codec.01/encoded.05.dat b/fixture/shuffle/codec.01/encoded.05.dat
diff --git a/fixture/shuffle/codec.01/encoded.06.dat b/fixture/shuffle/codec.01/encoded.06.dat
diff --git a/fixture/shuffle/codec.01/encoded.07.dat b/fixture/shuffle/codec.01/encoded.07.dat
diff --git a/fixture/shuffle/codec.01/encoded.08.dat b/fixture/shuffle/codec.01/encoded.08.dat
diff --git a/fixture/shuffle/codec.01/encoded.09.dat b/fixture/shuffle/codec.01/encoded.09.dat
diff --git a/fixture/shuffle/codec.01/encoded.10.dat b/fixture/shuffle/codec.01/encoded.10.dat
diff --git a/fixture/shuffle/codec.01/encoded.11.dat b/fixture/shuffle/codec.01/encoded.11.dat
diff --git a/fixture/shuffle/codec.01/encoded.12.dat b/fixture/shuffle/codec.01/encoded.12.dat
diff --git a/fixture/shuffle/codec.02/config.json b/fixture/shuffle/codec.02/config.json
@@ -0,0 +1,4 @@
+{
+    "elementsize": 4,
+    "id": "shuffle"
+}
diff --git a/fixture/shuffle/codec.02/encoded.00.dat b/fixture/shuffle/codec.02/encoded.00.dat
diff --git a/fixture/shuffle/codec.02/encoded.01.dat b/fixture/shuffle/codec.02/encoded.01.dat
diff --git a/fixture/shuffle/codec.02/encoded.02.dat b/fixture/shuffle/codec.02/encoded.02.dat
diff --git a/fixture/shuffle/codec.02/encoded.03.dat b/fixture/shuffle/codec.02/encoded.03.dat
diff --git a/fixture/shuffle/codec.02/encoded.04.dat b/fixture/shuffle/codec.02/encoded.04.dat
diff --git a/fixture/shuffle/codec.02/encoded.05.dat b/fixture/shuffle/codec.02/encoded.05.dat
diff --git a/fixture/shuffle/codec.02/encoded.06.dat b/fixture/shuffle/codec.02/encoded.06.dat
diff --git a/fixture/shuffle/codec.02/encoded.07.dat b/fixture/shuffle/codec.02/encoded.07.dat
diff --git a/fixture/shuffle/codec.02/encoded.08.dat b/fixture/shuffle/codec.02/encoded.08.dat
diff --git a/fixture/shuffle/codec.02/encoded.09.dat b/fixture/shuffle/codec.02/encoded.09.dat
diff --git a/fixture/shuffle/codec.02/encoded.10.dat b/fixture/shuffle/codec.02/encoded.10.dat
diff --git a/fixture/shuffle/codec.02/encoded.11.dat b/fixture/shuffle/codec.02/encoded.11.dat
diff --git a/fixture/shuffle/codec.02/encoded.12.dat b/fixture/shuffle/codec.02/encoded.12.dat
diff --git a/fixture/shuffle/codec.03/config.json b/fixture/shuffle/codec.03/config.json
@@ -0,0 +1,4 @@
+{
+    "elementsize": 8,
+    "id": "shuffle"
+}
diff --git a/fixture/shuffle/codec.03/encoded.00.dat b/fixture/shuffle/codec.03/encoded.00.dat
diff --git a/fixture/shuffle/codec.03/encoded.01.dat b/fixture/shuffle/codec.03/encoded.01.dat
diff --git a/fixture/shuffle/codec.03/encoded.02.dat b/fixture/shuffle/codec.03/encoded.02.dat
diff --git a/fixture/shuffle/codec.03/encoded.03.dat b/fixture/shuffle/codec.03/encoded.03.dat
diff --git a/fixture/shuffle/codec.03/encoded.04.dat b/fixture/shuffle/codec.03/encoded.04.dat
diff --git a/fixture/shuffle/codec.03/encoded.05.dat b/fixture/shuffle/codec.03/encoded.05.dat
diff --git a/fixture/shuffle/codec.03/encoded.06.dat b/fixture/shuffle/codec.03/encoded.06.dat
diff --git a/fixture/shuffle/codec.03/encoded.07.dat b/fixture/shuffle/codec.03/encoded.07.dat
diff --git a/fixture/shuffle/codec.03/encoded.08.dat b/fixture/shuffle/codec.03/encoded.08.dat
diff --git a/fixture/shuffle/codec.03/encoded.09.dat b/fixture/shuffle/codec.03/encoded.09.dat
diff --git a/fixture/shuffle/codec.03/encoded.10.dat b/fixture/shuffle/codec.03/encoded.10.dat
diff --git a/fixture/shuffle/codec.03/encoded.11.dat b/fixture/shuffle/codec.03/encoded.11.dat
diff --git a/fixture/shuffle/codec.03/encoded.12.dat b/fixture/shuffle/codec.03/encoded.12.dat
diff --git a/numcodecs/__init__.py b/numcodecs/__init__.py
@@ -92,6 +92,9 @@
 from numcodecs.base64 import Base64
 register_codec(Base64)
 
+from numcodecs.shuffle import Shuffle
+register_codec(Shuffle)
+
 try:
     from numcodecs.msgpacks import MsgPack
     register_codec(MsgPack)