Fixed typo in include

Version 2.0.0

.coveragerc

@@ -1,13 +0,0 @@
-[run]
-branch = True
-source = wavinfo 
-
-[report]
-exclude_lines =
-    if self.debug:
-    pragma: no cover
-    raise NotImplementedError
-    if __name__ == .__main__.:
-ignore_errors = True
-omit =
-    tests/*

.devcontainer/devcontainer.json

@@ -0,0 +1,26 @@
+{
+	"image": "mcr.microsoft.com/devcontainers/universal:2",
+	"features": {
+    	"ghcr.io/devcontainers/features/anaconda:1": {},
+    	"ghcr.io/devcontainers/features/python:1": {
+    	"version":"3.11"
+    },
+    "ghcr.io/meaningful-ooo/devcontainer-features/fish:1": {}
+},
+"postCreateCommand": "pip3 install -r requirements.txt && pip3 install -r docs/requirements.txt && pip3 install pytest && conda install -y ffmpeg",
+"customizations": {
+	"vscode": {
+		"extensions": [
+			"ms-python.isort",
+			"ms-toolsai.jupyter",
+			"ms-toolsai.vscode-jupyter-cell-tags",
+			"ms-toolsai.jupyter-keymap",
+			"ms-toolsai.jupyter-renderers",
+			"ms-toolsai.vscode-jupyter-slideshow",
+			"ms-python.python",
+			"ms-python.vscode-pylance",
+			"george-alisson.html-preview-vscode"
+		]
+	}
+}
+}

.github/workflows/python-package.yml

@@ -0,0 +1,42 @@
+# This workflow will install Python dependencies, run tests and lint with a variety of Python versions
+# For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-python
+
+name: Python Lint and Test
+
+on:
+  push:
+    branches: [ "master" ]
+  pull_request:
+    branches: [ "master" ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: ["3.8", "3.9", "3.10", "3.11"]
+
+    steps:
+    - uses: actions/checkout@v2.5.0
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v4.3.0
+      with:
+        python-version: ${{ matrix.python-version }}
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        python -m pip install flake8 pytest
+        if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
+    - name: Setup FFmpeg
+      uses: FedericoCarboni/setup-ffmpeg@v2
+    - name: Lint with flake8
+      run: |
+        # stop the build if there are Python syntax errors or undefined names
+        flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
+        # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
+        flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
+    - name: Test with pytest
+      run: |
+        pytest

.github/workflows/pythonpublish.yml

@@ -2,7 +2,7 @@ name: Upload Python Package
 
 on:
   release:
-    types: [created]
+    types: [published]
 
 jobs:
   deploy:
@@ -19,8 +19,18 @@ jobs:
         pip install setuptools wheel twine lxml
     - name: Build and publish
       env:
-        TWINE_USERNAME: ${{ secrets.PYPI_USERNAME }}
+        TWINE_USERNAME: __token__
-        TWINE_PASSWORD: ${{ secrets.PYPI_PASSWORD }}
+        TWINE_PASSWORD: ${{ secrets.PYPI_APIKEY }}
       run: |
         python setup.py sdist bdist_wheel
         twine upload dist/*
+    - name: Report to Mastodon
+      uses: cbrgm/mastodon-github-action@v1.0.1
+      with:
+        message: |
+          I just released a new version of wavinfo, my library for reading WAVE file metadata!
+          #sounddesign #filmmaking #audio #python
+          ${{ github.server_url }}/${{ github.repository }}
+      env:
+        MASTODON_URL: ${{ secrets.MASTODON_URL }}
+        MASTODON_ACCESS_TOKEN: ${{ secrets.MASTODON_ACCESS_TOKEN }}

.gitignore

@@ -89,6 +89,8 @@ venv/
 ENV/
 env.bak/
 venv.bak/
+docs_venv/
+venv_docs/
 
 # Spyder project settings
 .spyderproject
@@ -106,3 +108,5 @@ venv.bak/
 # vim swap
 *.swp
 .DS_Store
+
+.vscode/

.idea/.gitignore

@@ -1,3 +0,0 @@
-
-# Default ignored files
-/workspace.xml

.idea/dictionaries/jamiehardt.xml

@@ -1,9 +0,0 @@
-<component name="ProjectDictionaryState">
-  <dictionary name="jamiehardt">
-    <words>
-      <w>bext</w>
-      <w>ident</w>
-      <w>umid</w>
-    </words>
-  </dictionary>
-</component>

.idea/inspectionProfiles/profiles_settings.xml

@@ -1,6 +0,0 @@
-<component name="InspectionProjectProfileManager">
-  <settings>
-    <option name="USE_PROJECT_PROFILE" value="false" />
-    <version value="1.0" />
-  </settings>
-</component>

.idea/misc.xml

@@ -1,4 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ProjectRootManager" version="2" project-jdk-name="Python 3.8 (wavinfo)" project-jdk-type="Python SDK" />
-</project>

.idea/modules.xml

@@ -1,8 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ProjectModuleManager">
-    <modules>
-      <module fileurl="file://$PROJECT_DIR$/.idea/wavinfo.iml" filepath="$PROJECT_DIR$/.idea/wavinfo.iml" />
-    </modules>
-  </component>
-</project>

.idea/vcs.xml

@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="VcsDirectoryMappings">
-    <mapping directory="" vcs="Git" />
-  </component>
-</project>

.idea/wavinfo.iml

@@ -1,8 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<module type="PYTHON_MODULE" version="4">
-  <component name="NewModuleRootManager">
-    <content url="file://$MODULE_DIR$" />
-    <orderEntry type="jdk" jdkName="Python 3.8 (wavinfo)" jdkType="Python SDK" />
-    <orderEntry type="sourceFolder" forTests="false" />
-  </component>
-</module>

.readthedocs.yaml

@@ -0,0 +1,29 @@
+# .readthedocs.yaml
+# Read the Docs configuration file
+# See https://docs.readthedocs.io/en/stable/config-file/v2.html for details
+
+# Required
+version: 2
+
+# Set the version of Python and other tools you might need
+build:
+  os: ubuntu-20.04
+  tools:
+    python: "3.10"
+    # You can also specify other tool versions:
+    # nodejs: "16"
+    # rust: "1.55"
+    # golang: "1.17"
+
+# Build documentation in the docs/ directory with Sphinx
+sphinx:
+   configuration: docs/source/conf.py
+
+#If using Sphinx, optionally build your docs in additional formats such as PDF
+formats:
+   - pdf
+
+#Optionally declare the Python requirements required to build your docs
+python:
+   install:
+   - requirements: requirements.txt

.travis.yml

@@ -1,26 +0,0 @@
-dist: xenial
-language: python
-python:
-#    - "2.7"
-    - "3.5"
-    - "3.6"
-    - "3.7"
-    - "3.8"
-script:
-    - "gunzip tests/test_files/rf64/*.gz"
-    - "python setup.py test"
-    - "python -m pytest tests/ -v --cov wavinfo --cov-report term-missing"
-before_install:
-    - "sudo apt-get update"
-    - "sudo add-apt-repository universe"
-    - "sudo apt-get install -y ffmpeg"
-    - "pip install pytest"
-    - "pip install lxml"
-    - "pip install coverage"
-    - "pip install codecov"
-    - "pip install pytest-cov==2.5.0"
-    - "pip install coverage==4.4"
-install:
-    - "pip install setuptools"
-after_success:
-    - "codecov"

LICENSE

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2020 Jamie Hardt
+Copyright (c) 2022 Jamie Hardt
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

README.md

@@ -1,37 +1,39 @@
-[![Build Status](https://travis-ci.com/iluvcapra/wavinfo.svg?branch=master)](https://travis-ci.com/iluvcapra/wavinfo)
-[![codecov](https://codecov.io/gh/iluvcapra/wavinfo/branch/master/graph/badge.svg)](https://codecov.io/gh/iluvcapra/wavinfo)
 [![Documentation Status](https://readthedocs.org/projects/wavinfo/badge/?version=latest)](https://wavinfo.readthedocs.io/en/latest/?badge=latest) ![](https://img.shields.io/github/license/iluvcapra/wavinfo.svg) ![](https://img.shields.io/pypi/pyversions/wavinfo.svg) [![](https://img.shields.io/pypi/v/wavinfo.svg)](https://pypi.org/project/wavinfo/) ![](https://img.shields.io/pypi/wheel/wavinfo.svg)
-
+[![Lint and Test](https://github.com/iluvcapra/wavinfo/actions/workflows/python-package.yml/badge.svg)](https://github.com/iluvcapra/wavinfo/actions/workflows/python-package.yml)
-<!-- ![Test](https://github.com/iluvcapra/wavinfo/workflows/Upload%20Python%20Package/badge.svg) -->
 
 # wavinfo
 
 The `wavinfo` package allows you to probe WAVE and [RF64/WAVE files][eburf64] and extract extended metadata, with an emphasis on film, video and professional music production metadata.
 
+
+## Metadata Support
+
 `wavinfo` reads:
 
-* __Broadcast-WAVE__ metadata<sup>[1][ebu]</sup>, including embedded program
+* [__Broadcast-WAVE__][ebu] metadata, including embedded program
-  loudness and coding history, if extant. This also includes the SMPTE UMID<sup>[2][smpte_330m2011]</sup>.
+  loudness and coding history and [__SMPTE UMID__][smpte_330m2011].
-* __iXML__ production recorder metadata<sup>[3][ixml]</sup>, including project, scene, and take tags, recorder notes
+* [__ADM__][adm] track metadata, including channel, pack formats, object and content names.
+* [__iXML__][ixml] production recorder metadata, including project, scene, and take tags, recorder notes
   and file family information.
-* Most of the common __RIFF INFO__<sup>[4][info-tags]</sup> metadata fields.
+* Most of the common [__RIFF INFO__][info-tags] metadata fields.
 * The __wav format__ is also parsed, so you can access the basic sample rate and channel count
   information.
 
 In progress:
-* ADM metadata consilient with the output of the __Dolby RMU__, perhaps later fully complaint with [ITU BS.2076-2][adm].
+* [__Dolby RMU__][dolby] metadata and [EBU Tech 3285 Supplement 6][ebu3285s6].
-* iXML `STEINBERG` sound library attributes.
-* __NetMix__ library attributes.
 * Pro Tools __embedded regions__.
+* iXML `STEINBERG` sound library attributes.
 
+[dolby]:https://developer.dolby.com/globalassets/documentation/technology/dolby_atmos_master_adm_profile_v1.0.pdf
 [ebu]:https://tech.ebu.ch/docs/tech/tech3285.pdf
+[ebu3285s6]:https://tech.ebu.ch/docs/tech/tech3285s6.pdf
 [adm]:https://www.itu.int/dms_pubrec/itu-r/rec/bs/R-REC-BS.2076-2-201910-I!!PDF-E.pdf
 [smpte_330m2011]:http://standards.smpte.org/content/978-1-61482-678-1/st-330-2011/SEC1.abstract
 [ixml]:http://www.ixml.info
 [eburf64]:https://tech.ebu.ch/docs/tech/tech3306v1_1.pdf
 [info-tags]:https://exiftool.org/TagNames/RIFF.html#Info
 
-## Demonstration
+## How To Use
 
 The entry point for wavinfo is the WavInfoReader class.
 
@@ -41,6 +43,9 @@ from wavinfo import WavInfoReader
 path = '../tests/test_files/A101_1.WAV'
 
 info = WavInfoReader(path)
+
+adm_metadata = info.adm
+ixml_metadata = info.ixml
 ```
 
 The package also installs a shell command:
@@ -49,21 +54,6 @@ The package also installs a shell command:
 $ wavinfo test_files/A101_1.WAV
 ```
 
-### Basic WAV Data
-
-The length of the file in frames (interleaved samples) and bytes is available, as is the contents of the format chunk.
-
-```python
-(info.data.frame_count, info.data.byte_count)
->>> (240239, 1441434)
-(info.fmt.sample_rate, info.fmt.channel_count, info.fmt.block_align, info.fmt.bits_per_sample)
->>> (48000, 2, 6, 24)
-```
-
-## Platform Lifecycle Stuff
-
-Python 3.5 support is deprecated.
-
 ## Other Resources
 
 * For other file formats and ID3 decoding, look at [audio-metadata](https://github.com/thebigmunch/audio-metadata).

docs/Makefile

@@ -4,7 +4,7 @@
 # You can set these variables from the command line.
 SPHINXOPTS    =
 SPHINXBUILD   = sphinx-build
-SOURCEDIR     = .
+SOURCEDIR     = source
 BUILDDIR      = _build
 
 # Put it first so that "make" without argument is like "make help".
@@ -16,4 +16,4 @@ help:
 # Catch-all target: route all unknown targets to Sphinx using the new
 # "make mode" option.  $(O) is meant as a shortcut for $(SPHINXOPTS).
 %: Makefile
-	@$(SPHINXBUILD) -M $@ "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)
+	@$(SPHINXBUILD) -M $@ "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)

docs/make.bat

@@ -1,35 +0,0 @@
-@ECHO OFF
-
-pushd %~dp0
-
-REM Command file for Sphinx documentation
-
-if "%SPHINXBUILD%" == "" (
-	set SPHINXBUILD=sphinx-build
-)
-set SOURCEDIR=.
-set BUILDDIR=_build
-
-if "%1" == "" goto help
-
-%SPHINXBUILD% >NUL 2>NUL
-if errorlevel 9009 (
-	echo.
-	echo.The 'sphinx-build' command was not found. Make sure you have Sphinx
-	echo.installed, then set the SPHINXBUILD environment variable to point
-	echo.to the full path of the 'sphinx-build' executable. Alternatively you
-	echo.may add the Sphinx directory to PATH.
-	echo.
-	echo.If you don't have Sphinx installed, grab it from
-	echo.http://sphinx-doc.org/
-	exit /b 1
-)
-
-%SPHINXBUILD% -M %1 %SOURCEDIR% %BUILDDIR% %SPHINXOPTS%
-goto end
-
-:help
-%SPHINXBUILD% -M help %SOURCEDIR% %BUILDDIR% %SPHINXOPTS%
-
-:end
-popd

docs/requirements.txt

@@ -0,0 +1,25 @@
+alabaster==0.7.12
+Babel==2.11.0
+certifi==2022.9.24
+charset-normalizer==2.1.1
+docutils==0.17.1
+idna==3.4
+imagesize==1.4.1
+Jinja2==3.1.2
+lxml==4.9.1
+MarkupSafe==2.1.1
+packaging==21.3
+Pygments==2.13.0
+pyparsing==3.0.9
+pytz==2022.6
+requests==2.28.1
+snowballstemmer==2.2.0
+Sphinx==5.3.0
+sphinx-rtd-theme==1.1.1
+sphinxcontrib-applehelp==1.0.2
+sphinxcontrib-devhelp==1.0.2
+sphinxcontrib-htmlhelp==2.0.0
+sphinxcontrib-jsmath==1.0.1
+sphinxcontrib-qthelp==1.0.3
+sphinxcontrib-serializinghtml==1.1.5
+urllib3==1.26.12

docs/source/classes.rst

@@ -0,0 +1,18 @@
+Other wavinfo Classes
+===============
+
+
+.. autoclass:: wavinfo.wave_reader.WavInfoReader
+   :members:
+
+   .. automethod:: __init__
+   
+
+.. autoclass:: wavinfo.wave_reader.WavAudioFormat
+   :members:
+
+.. autoclass:: wavinfo.wave_reader.WavDataDescriptor
+   :members:
+
+
+

docs/source/conf.py

@@ -14,19 +14,22 @@
 #
 import os
 import sys
-sys.path.insert(0, os.path.abspath('..'))
+sys.path.insert(0, os.path.abspath('../..'))
+sys.path.insert(0, os.path.abspath("../../.."))
+print(sys.path)
 
+import wavinfo
 
 # -- Project information -----------------------------------------------------
 
 project = u'wavinfo'
-copyright = u'2019, Jamie Hardt'
+copyright = u'2022, Jamie Hardt'
 author = u'Jamie Hardt'
 
 # The short X.Y version
-version = u''
+version = wavinfo.__version__
 # The full version, including alpha/beta/rc tags
-release = u'v1.1'
+release = wavinfo.__version__
 
 
 # -- General configuration ---------------------------------------------------
@@ -61,7 +64,7 @@ master_doc = 'index'
 #
 # This is also used if you do content translation via gettext catalogs.
 # Usually you set "language" from the command line for these cases.
-language = None
+language = 'en'
 
 # List of patterns, relative to source directory, that match files and
 # directories to ignore when looking for source files.

docs/source/index.rst

@@ -6,30 +6,17 @@
 Welcome to wavinfo's documentation!
 ===================================
 
-
-.. module:: wavinfo
-
-.. autoclass:: WavInfoReader
-   :members:
-
-   .. automethod:: __init__
-   
-
-.. autoclass:: wavinfo.wave_reader.WavAudioFormat
-   :members:
-
-.. autoclass:: wavinfo.wave_reader.WavDataDescriptor
-   :members:
-
-
 .. toctree::
    :maxdepth: 2
-   :caption: Notes:
+   :caption: Notes
    
+   quickstart
+   metadata_scopes/adm.rst
    metadata_scopes/bext.rst
-   metadata_scopes/ixml.rst
    metadata_scopes/info.rst
+   metadata_scopes/ixml.rst
 
+   classes
 
 
 Indices and tables

docs/source/metadata_scopes/adm.rst

@@ -0,0 +1,15 @@
+ADM (Audio Definition Model) Metadata
+=====================================
+
+Notes
+-----
+
+
+
+Class Reference
+---------------
+
+.. module:: wavinfo
+
+.. autoclass:: wavinfo.wave_adm_reader.WavADMReader
+    :members:

docs/source/metadata_scopes/bext.rst

@@ -1,11 +1,6 @@
 Broadcast WAV Extension
 =======================
 
-.. module:: wavinfo
-
-.. autoclass:: wavinfo.wave_bext_reader.WavBextReader
-   :members:
-
 
 Notes
 -----
@@ -63,3 +58,12 @@ Result:
     Originator Time: 12:40:00
     Time Reference: 2190940753
     A=PCM,F=48000,W=24,M=stereo,R=48000,T=2 Ch
+
+
+Class Reference
+---------------
+
+.. autoclass:: wavinfo.wave_bext_reader.WavBextReader
+   :members:
+
+

docs/source/metadata_scopes/info.rst

@@ -1,14 +1,6 @@
 INFO Metadata
 =============
 
-
-.. module:: wavinfo
-
-.. autoclass:: wavinfo.wave_info_reader.WavInfoChunkReader
-   :members:
-
-
-
 Notes
 -----
 
@@ -28,5 +20,12 @@ music library software.
     print("INFO Comment:",   bullet.info.comment)
 
 
+Class Reference
+---------------
+
+.. autoclass:: wavinfo.wave_info_reader.WavInfoChunkReader
+   :members:
+
+
 
 

docs/source/metadata_scopes/ixml.rst

@@ -1,13 +1,6 @@
 iXML Production Recorder Metadata
 =================================
 
-
-.. module:: wavinfo
-
-.. autoclass:: wavinfo.wave_ixml_reader.WavIXMLFormat
-   :members:
-
-
 Notes
 -----
 iXML allows an XML document to be embedded in a WAV file.
@@ -41,4 +34,10 @@ Result:
     iXML File Family UID: USSDVGR1112089007124001008206300
 
 
+Class Reference
+---------------
+
+.. autoclass:: wavinfo.wave_ixml_reader.WavIXMLFormat
+   :members:
+
 

docs/source/quickstart.rst

@@ -0,0 +1,12 @@
+ptulsconv Quickstart
+====================
+
+.. code-block:: python
+    :caption: Using wavinfo
+
+    import wavinfo
+
+    path = 'path/to/your/wave/audio.wav'
+
+    info = wavinfo.WavInfoReader(path)
+

requirements.txt

@@ -0,0 +1 @@
+lxml==4.9.1

setup.py

@@ -26,10 +26,10 @@ setup(name='wavinfo',
           'License :: OSI Approved :: MIT License',
           'Topic :: Multimedia',
           'Topic :: Multimedia :: Sound/Audio',
-          "Programming Language :: Python :: 3.5",
+          "Programming Language :: Python :: 3.8",
-          "Programming Language :: Python :: 3.6",
+          "Programming Language :: Python :: 3.9",
-          "Programming Language :: Python :: 3.7",
+          "Programming Language :: Python :: 3.10",
-          "Programming Language :: Python :: 3.8"],
+          "Programming Language :: Python :: 3.11"],
       keywords='waveform metadata audio ebu smpte avi library film tv editing editorial',
       install_requires=['lxml'],
       entry_points={

tests/test_adm.py

@@ -0,0 +1,40 @@
+from unittest import TestCase
+
+import wavinfo
+
+class TestADMWave(TestCase):
+
+    def setUp(self) -> None:
+        self.protools_adm_wav = "tests/test_files/protools/Test_ADM_ProTools.wav"
+        return super().setUp()
+
+    def test_chna(self):
+        info = wavinfo.WavInfoReader(self.protools_adm_wav)
+        self.assertIsNotNone(info)
+
+        adm = info.adm
+        self.assertIsNotNone(adm)
+
+        self.assertEqual(len(adm.channel_uids), 14)
+
+    def test_to_dict(self):
+        info = wavinfo.WavInfoReader(self.protools_adm_wav)
+        adm = info.adm
+        dict = adm.to_dict()
+        self.assertIsNotNone(dict)
+    
+    def test_track_info(self):
+        info = wavinfo.WavInfoReader(self.protools_adm_wav)
+        adm = info.adm
+
+        t1 = adm.track_info(0)
+        self.assertTrue("channel_format_name" in t1.keys())
+        self.assertEqual("RoomCentricLeft", t1["channel_format_name"])
+
+        self.assertTrue("pack_format_name" in t1.keys())
+        self.assertEqual("AtmosCustomPackFormat1", t1["pack_format_name"])
+
+        t10 = adm.track_info(10)
+        self.assertTrue("content_name" in t10.keys())
+        self.assertEqual("Dialog", t10["content_name"])
+        

tests/test_wave_parsing.py

@@ -1,5 +1,4 @@
 import os.path
-import sys
 
 from unittest import TestCase
 
@@ -12,7 +11,7 @@ class TestWaveInfo(TestCase):
     def test_sanity(self):
         for wav_file in all_files():
             info = wavinfo.WavInfoReader(wav_file)
-            self.assertEqual(info.__repr__(), 'WavInfoReader(%s, %s, %s)'.format(wav_file, 'latin_1', 'ascii'))
+            self.assertEqual(info.__repr__(), 'WavInfoReader({}, latin_1, ascii)'.format(os.path.abspath(wav_file)))
             self.assertIsNotNone(info)
 
     def test_fmt_against_ffprobe(self):
@@ -22,12 +21,12 @@ class TestWaveInfo(TestCase):
 
             self.assertEqual(info.fmt.channel_count, ffprobe_info['streams'][0]['channels'])
             self.assertEqual(info.fmt.sample_rate, int(ffprobe_info['streams'][0]['sample_rate']))
-            self.assertEqual(info.fmt.bits_per_sample, int(ffprobe_info['streams'][0]['bits_per_raw_sample']))
+            self.assertEqual(info.fmt.bits_per_sample, int(ffprobe_info['streams'][0]['bits_per_sample']))
 
             if info.fmt.audio_format == 1:
                 self.assertTrue(ffprobe_info['streams'][0]['codec_name'].startswith('pcm'))
                 streams = ffprobe_info['streams'][0]
-                byte_rate = int(streams['sample_rate']) * streams['channels'] * int(streams['bits_per_raw_sample']) / 8
+                byte_rate = int(streams['sample_rate']) * streams['channels'] * int(streams['bits_per_sample']) / 8
                 self.assertEqual(info.fmt.byte_rate, byte_rate)
 
     def test_data_against_ffprobe(self):

wavinfo/__init__.py

@@ -7,6 +7,6 @@ Go to the documentation for wavinfo.WavInfoReader for more information.
 from .wave_reader import WavInfoReader
 from .riff_parser import WavInfoEOFError
 
-__version__ = '1.6'
+__version__ = '2.0.1'
 __author__ = 'Jamie Hardt <jamiehardt@gmail.com>'
 __license__ = "MIT"

wavinfo/dolby_parser.py

@@ -0,0 +1,188 @@
+# Dolby RMU Metadata per EBU Tech 3285 Supp 6
+#
+# https://tech.ebu.ch/docs/tech/tech3285s6.pdf
+#
+
+from struct import unpack, calcsize
+from enum import (Enum, IntEnum)
+
+CHUNK_IDENT = "dbmd"
+DOLBY_VERSION = "1.0.0.6"
+
+
+class _DPPGenericDownMixLevel(Enum):
+    PLUS_3DB = 0b000
+    PLUS_1_5DB = 0b001
+    UNITY = 0b010
+    MINUS_1_5DB = 0b011
+    MINUS_3DB = 0b100
+    MINUS_4_5DB = 0b101
+    MINUS_6DB = 0b110
+    MUTE = 0b111
+
+
+class DPPDolbySurroundEncodingMode(Enum):
+    RESERVED = 0b11
+    IN_USE = 0b10
+    NOT_IN_USE = 0b01
+    NOT_INDICATED = 0b00
+
+# DPPLoRoDownMixCenterLevel
+# DPPLtRtCenterMixLevel
+# DPPLtRtSurroundMixLevel
+
+class DolbyMetadataSegmentTypes(IntEnum):
+    END_MARKER = 0
+    DOLBY_E_METADATA = 1
+    DOLBY_DIGITAL_METADATA = 3
+    DOLBY_DIGITAL_PLUS_METADATA = 7
+    AUDIO_INFO = 8
+
+
+class DDPBitStreamMode(Enum):
+    """
+    Dolby Digital Plus `bsmod` field
+    § 4.3.2.2
+    """
+    COMPLETE_MAIN = 0b000
+    MUSIC_AND_EFFECTS = 0b001
+    VISUALLY_IMPAIRED = 0b010
+    HEARING_IMPAIRED = 0b011
+    DIALOGUE_ONLY = 0b100
+    COMMENTARY = 0b101
+    EMERGENCY = 0b110
+    VOICEOVER = 0b111 # if audioconfigmode is 1_0
+    KARAOKE = 0b1000  # if audioconfigmode is not 1_0
+
+
+class DDPAudioCodingMode(Enum):
+    """
+    Dolby Digital Plus `acmod` field
+    § 4.3.2.3
+    """
+    RESERVED = 0b000
+    CH_ORD_1_0 = 0b001
+    CH_ORD_2_0 = 0b010
+    CH_ORD_3_0 = 0b011
+    CH_ORD_2_1 = 0b100
+    CH_ORD_3_1 = 0b101
+    CH_ORD_2_2 = 0b110
+    CH_ORD_3_2 = 0b111
+
+
+class DPPCenterDownMixLevel(Enum):
+    """
+    § 4.3.3.1
+    """
+    DOWN_3DB = 0b00
+    DOWN_45DB = 0b01
+    DOWN_6DB = 0b10
+    RESERVED = 0b11
+
+
+class DPPSurroundDownMixLevel(Enum):
+    """
+    Dolby Digital Plus `surmixlev` field
+    § 4.3.3.2
+    """
+    DOWN_3DB = 0b00
+    DOWN_6DB = 0b01
+    MUTE = 0b10
+    RESERVED = 0b11
+
+
+class DPPLanguageCode(Enum):
+    """
+    § 4.3.4.1 , 4.3.5 (always 0xFF)
+    """
+    # this is removed in https://www.atsc.org/wp-content/uploads/2015/03/A52-201212-17.pdf § 5.4.2.12
+    # It should just be 0xff
+    pass
+
+
+class DPPMixLevel(int):
+    pass
+
+
+class DPPDialnormLevel(int):
+    pass
+
+
+class DPPRoomTime(Enum):
+    """
+    `roomtyp` 4.3.6.3
+    """
+    NOT_INDICATED = 0b00
+    LARGE_ROOM_X_CURVE = 0b01
+    SMALL_ROOM_FLAT_CURVE = 0b10
+    RESERVED = 0b11
+
+
+class DPPPreferredDownMixMode(Enum):
+    """
+    § 4.3.8.1
+    """
+    NOT_INDICATED = 0b00
+    PRO_LOGIC = 0b01
+    STEREO = 0b10
+    PRO_LOGIC_2 = 0b11
+
+
+# class DPPLtRtCenterMixLevel(_DPPGenericDownMixLevel):
+#     pass
+#
+#
+# class DPPLtRtSurroundMixLevel(_DPPGenericDownMixLevel):
+#     pass
+#
+#
+# class DPPSurroundEXMode(_DPPGenericInUseIndicator):
+#     pass
+#
+#
+# class DPPHeadphoneMode(_DPPGenericInUseIndicator):
+#     pass
+
+
+class DPPADConverterType(Enum):
+    STANDARD = 0
+    HDCD = 1
+
+
+class DDPStreamDependency(Enum):
+    """
+    Encodes `ddplus_info1.stream_type` field § 4.3.12.1
+    """
+    INDEPENDENT = 0
+    DEPENDENT = 1
+    INDEPENDENT_FROM_DOLBY_DIGITAL = 2
+    RESERVED = 3
+
+
+class DDPDataRate(int):
+    pass
+
+
+class DPPRFCompressionProfile(Enum):
+    NONE = 0
+    FILM_STANDARD = 1
+    FILM_LIGHT = 2
+    MUSIC_STANDARD = 3
+    MUSIC_LIGHT = 4
+    SPEECH = 5
+
+
+class DolbyDigitalPlusMetadata:
+
+    @classmethod
+    def parse(cls, binary_data):
+        binary_format = "<BBxxBBBBBBBBBBBBBxxxBxxxxxH"
+        assert len(binary_data >= calcsize(binary_format))
+        fields = unpack(binary_format, binary_data)
+
+
+class WavDolbyReader:
+    def __init__(self, dolby_data):
+        version, remainder = unpack("<U", dolby_data[0]), dolby_data[1:]
+
+        ## FIXME continues...

wavinfo/umid_parser.py

@@ -1,5 +1,3 @@
-from typing import Union
-import binascii
 from functools import reduce
 
 
@@ -13,7 +11,7 @@ class UMIDParser:
 
     This implementation is based on SMPTE ST 330:2011
     """
-    def __init__(self, raw_umid: bytearray):
+    def __init__(self, raw_umid: bytes):
         self.raw_umid = raw_umid
     #
     # @property

wavinfo/wave_adm_reader.py

@@ -0,0 +1,89 @@
+"""
+ADM Reader
+"""
+
+from struct import unpack, unpack_from, calcsize
+from io import BytesIO
+from collections import namedtuple
+from typing import Iterable, Tuple
+
+from lxml import etree as ET
+
+ChannelEntry = namedtuple('ChannelEntry', "track_index uid track_ref pack_ref")
+
+class WavADMReader:
+    """
+    Reads XML data from an EBU ADM (Audio Definiton Model) WAV File.
+    """
+
+    def __init__(self, axml_data: bytes, chna_data: bytes):
+        header_fmt = "<HH"
+        uid_fmt = "<H12s14s11sx"
+
+        #: An :mod:`lxml.etree` of the ADM XML document
+        self.axml = ET.parse(BytesIO(axml_data))
+
+        _, uid_count = unpack(header_fmt, chna_data[0:4])
+
+        #: A list of :class:`ChannelEntry` objects parsed from the
+        #: `chna` metadata chunk. 
+        self.channel_uids = []
+
+        offset = calcsize(header_fmt)
+        for _ in range(uid_count):
+
+            track_index, uid, track_ref, pack_ref = unpack_from(uid_fmt, chna_data, offset)
+
+            # these values are either ascii or all null
+
+            self.channel_uids.append(ChannelEntry(track_index,
+                uid.decode('ascii') , track_ref.decode('ascii'), pack_ref.decode('ascii')))
+
+            offset += calcsize(uid_fmt)
+
+
+    def track_info(self, index):
+        """
+        Information about a track in the WAV file.
+
+        :param index: index of audio track (indexed from zero) 
+        :returns: a dictionary with content_name, object_name, pack_format_name, pack_type, 
+                  channel_format_name
+        """
+        channel_info = next((x for x in self.channel_uids if x.track_index == index + 1), None)
+        
+        if channel_info is None:
+            return None
+
+        ret_dict = {}
+
+        nsmap = self.axml.getroot().nsmap
+
+        trackformat_elem = self.axml.find(".//audioFormatExtended/audioTrackFormat[@audioTrackFormatID='%s']" % channel_info.track_ref, namespaces=nsmap)
+
+        stream_id = trackformat_elem[0].text
+
+        channelformatref_elem = self.axml.find(".//audioFormatExtended/audioStreamFormat[@audioStreamFormatID='%s']/audioChannelFormatIDRef" % stream_id, namespaces=nsmap)
+        channelformat_id = channelformatref_elem.text
+
+        packformatref_elem = self.axml.find(".//audioFormatExtended/audioStreamFormat[@audioStreamFormatID='%s']/audioPackFormatIDRef" % stream_id, namespaces=nsmap)
+        packformat_id = packformatref_elem.text
+
+        channelformat_elem = self.axml.find(".//audioFormatExtended/audioChannelFormat[@audioChannelFormatID='%s']" % channelformat_id, namespaces=nsmap)
+        ret_dict['channel_format_name'] = channelformat_elem.get("audioChannelFormatName")
+
+        packformat_elem = self.axml.find(".//audioFormatExtended/audioPackFormat[@audioPackFormatID='%s']" % packformat_id, namespaces=nsmap)
+        ret_dict['pack_type'] = packformat_elem.get("typeDefinition")
+        ret_dict['pack_format_name'] = packformat_elem.get("audioPackFormatName")
+
+        object_elem = self.axml.find(".//audioFormatExtended/audioObject[audioPackFormatIDRef = '%s']" % packformat_id, namespaces=nsmap)
+        ret_dict['audio_object_name'] = object_elem.get("audioObjectName")
+        object_id = object_elem.get("audioObjectID")
+
+        content_elem = self.axml.find(".//audioFormatExtended/audioContent/[audioObjectIDRef = '%s']" % object_id, namespaces=nsmap)
+        ret_dict['content_name'] = content_elem.get("audioContentName")
+
+        return ret_dict
+
+    def to_dict(self):
+        return dict(channel_entries=list(map(lambda z: z._asdict(), self.channel_uids)))

wavinfo/wave_bext_reader.py

@@ -1,7 +1,7 @@
 import struct
-import binascii
 from .umid_parser import UMIDParser
 
+from typing import Optional
 
 class WavBextReader:
     def __init__(self, bext_data, encoding):
@@ -16,44 +16,44 @@ class WavBextReader:
         rest_starts = struct.calcsize(packstring)
         unpacked = struct.unpack(packstring, bext_data[:rest_starts])
 
-        def sanitize_bytes(b):
+        def sanitize_bytes(b : bytes) -> str:
             first_null = next((index for index, byte in enumerate(b) if byte == 0), None)
             trimmed = b if first_null is None else b[:first_null]
             decoded = trimmed.decode(encoding)
             return decoded
 
         #: Description. A free-text field up to 256 characters long.
-        self.description = sanitize_bytes(unpacked[0])
+        self.description : str = sanitize_bytes(unpacked[0])
         #: Originator. Usually the name of the encoding application, sometimes
         #: a artist name.
-        self.originator = sanitize_bytes(unpacked[1])
+        self.originator : str = sanitize_bytes(unpacked[1])
         #: A unique identifier for the file, a serial number.
-        self.originator_ref = sanitize_bytes(unpacked[2])
+        self.originator_ref : str = sanitize_bytes(unpacked[2])
         #: Date of the recording, in the format YYY-MM-DD
-        self.originator_date = sanitize_bytes(unpacked[3])
+        self.originator_date : str = sanitize_bytes(unpacked[3])
         #: Time of the recording, in the format HH:MM:SS.
-        self.originator_time = sanitize_bytes(unpacked[4])
+        self.originator_time : str = sanitize_bytes(unpacked[4])
         #: The sample offset of the start of the file relative to an
         #: epoch, usually midnight the day of the recording. 
-        self.time_reference = unpacked[5]
+        self.time_reference : int  = unpacked[5]
         #: A variable-length text field containing a list of processes and
         #: and conversions performed on the file.
-        self.coding_history = sanitize_bytes(bext_data[rest_starts:])
+        self.coding_history : str = sanitize_bytes(bext_data[rest_starts:])
         #: BEXT version. 
-        self.version = unpacked[6]
+        self.version : int = unpacked[6]
         #: SMPTE 330M UMID of this audio file, 64 bytes are allocated though the UMID
         #: may only be 32 bytes long.
-        self.umid = None
+        self.umid : Optional[bytes] = None
         #: EBU R128 Integrated loudness, in LUFS.
-        self.loudness_value = None
+        self.loudness_value : Optional[float] = None
         #: EBU R128 Loudness rante, in LUFS.
-        self.loudness_range = None
+        self.loudness_range : Optional[float] = None
         #: True peak level, in dBFS TP
-        self.max_true_peak = None
+        self.max_true_peak : Optional[float] = None
         #: EBU R128 Maximum momentary loudness, in LUFS
-        self.max_momentary_loudness = None
+        self.max_momentary_loudness : Optional[float] = None
         #: EBU R128 Maximum short-term loudness, in LUFS.
-        self.max_shortterm_loudness = None
+        self.max_shortterm_loudness : Optional[float] = None
 
         if self.version > 0:
             self.umid = unpacked[7]

wavinfo/wave_info_reader.py

@@ -1,5 +1,6 @@
 from .riff_parser import parse_chunk, ListChunkDescriptor
 
+from typing import Optional
 
 class WavInfoChunkReader:
 
@@ -14,40 +15,40 @@ class WavInfoChunkReader:
         self.info_chunk = next((chunk for chunk in list_chunks if chunk.signature == b'INFO'), None)
 
         #: 'ICOP' Copyright
-        self.copyright = self._get_field(f, b'ICOP')
+        self.copyright : Optional[str] = self._get_field(f, b'ICOP')
         #: 'IPRD' Product
-        self.product = self._get_field(f, b'IPRD')
+        self.product : Optional[str]= self._get_field(f, b'IPRD')
-        self.album = self.product
+        self.album : Optional[str] = self.product
         #: 'IGNR' Genre
-        self.genre = self._get_field(f, b'IGNR')
+        self.genre : Optional[str] = self._get_field(f, b'IGNR')
         #: 'ISBJ' Supject
-        self.subject = self._get_field(f, b'ISBJ')
+        self.subject : Optional[str] = self._get_field(f, b'ISBJ')
         #: 'IART' Artist, composer, author
-        self.artist = self._get_field(f, b'IART')
+        self.artist : Optional[str] = self._get_field(f, b'IART')
         #: 'ICMT' Comment
-        self.comment = self._get_field(f, b'ICMT')
+        self.comment : Optional[str] = self._get_field(f, b'ICMT')
         #: 'ISFT' Software, encoding application
-        self.software = self._get_field(f, b'ISFT')
+        self.software : Optional[str] = self._get_field(f, b'ISFT')
         #: 'ICRD' Created date
-        self.created_date = self._get_field(f, b'ICRD')
+        self.created_date : Optional[str] = self._get_field(f, b'ICRD')
         #: 'IENG' Engineer
-        self.engineer = self._get_field(f, b'IENG')
+        self.engineer : Optional[str] = self._get_field(f, b'IENG')
         #: 'ITCH' Technician
-        self.technician = self._get_field(f, b'ITCH')
+        self.technician : Optional[str] = self._get_field(f, b'ITCH')
         #: 'IKEY' Keywords, keyword list
-        self.keywords = self._get_field(f, b'IKEY')
+        self.keywords : Optional[str] = self._get_field(f, b'IKEY')
         #: 'INAM' Name, title
-        self.title = self._get_field(f, b'INAM')
+        self.title : Optional[str] = self._get_field(f, b'INAM')
         #: 'ISRC' Source
-        self.source = self._get_field(f, b'ISRC')
+        self.source : Optional[str] = self._get_field(f, b'ISRC')
         #: 'TAPE' Tape
-        self.tape = self._get_field(f, b'TAPE')
+        self.tape : Optional[str] = self._get_field(f, b'TAPE')
         #: 'IARL' Archival Location
-        self.archival_location = self._get_field(f, b'IARL')
+        self.archival_location : Optional[str] = self._get_field(f, b'IARL')
         #: 'ICSM' Commissioned
-        self.commissioned = self._get_field(f, b'ICMS')
+        self.commissioned : Optional[str] = self._get_field(f, b'ICMS')
 
-    def _get_field(self, f, field_ident):
+    def _get_field(self, f, field_ident) -> Optional[str]:
         search = next(((chunk.start, chunk.length) for chunk in self.info_chunk.children if chunk.ident == field_ident),
                       None)
 

wavinfo/wave_ixml_reader.py

@@ -1,8 +1,7 @@
-# import xml.etree.ElementTree as ET
 from lxml import etree as ET
 import io
 from collections import namedtuple
-
+from typing import Optional
 
 IXMLTrack = namedtuple('IXMLTrack', ['channel_index', 'interleave_index', 'name', 'function'])
 
@@ -21,10 +20,12 @@ class WavIXMLFormat:
         parser = ET.XMLParser(recover=True)
         self.parsed = ET.parse(xml_bytes, parser=parser)
 
-    def _get_text_value(self, xpath):
+    def _get_text_value(self, xpath) -> Optional[str]:
         e = self.parsed.find("./" + xpath)
         if e is not None:
             return e.text
+        else: 
+            return None
 
     @property
     def raw_xml(self):
@@ -47,35 +48,35 @@ class WavIXMLFormat:
                                 function=track.xpath('string(FUNCTION/text())'))
 
     @property
-    def project(self):
+    def project(self) -> Optional[str]:
         """
         The project/film name entered for the recording.
         """
         return self._get_text_value("PROJECT")
 
     @property
-    def scene(self):
+    def scene(self) -> Optional[str]:
         """
         Scene/slate.
         """
         return self._get_text_value("SCENE")
 
     @property
-    def take(self):
+    def take(self) ->  Optional[str]:
         """
         Take number.
         """
         return self._get_text_value("TAKE")
 
     @property
-    def tape(self):
+    def tape(self) -> Optional[str]:
         """
         Tape name.
         """
         return self._get_text_value("TAPE")
 
     @property
-    def family_uid(self):
+    def family_uid(self) -> Optional[str]:
         """
         The globally-unique ID for this file family. This may be in the format
         of a GUID, or an EBU Rec 9 source identifier, or some other dumb number.
@@ -83,8 +84,18 @@ class WavIXMLFormat:
         return self._get_text_value("FILE_SET/FAMILY_UID")
 
     @property
-    def family_name(self):
+    def family_name(self) -> Optional[str]:
         """
         The name of this file's file family.
         """
         return self._get_text_value("FILE_SET/FAMILY_NAME")
+
+    def to_dict(self):
+        return dict(track_list=list(map(lambda x: x._asdict(), self.track_list)), 
+            project=self.project,
+            scene=self.scene,
+            take=self.take,
+            tape=self.tape,
+            family_uid=self.family_uid,
+            family_name=self.family_name 
+            )

wavinfo/wave_reader.py

@@ -1,7 +1,6 @@
 #-*- coding: utf-8 -*-
 import struct
 import os
-import sys
 from collections import namedtuple
 
 import pathlib
@@ -10,6 +9,7 @@ from .riff_parser import parse_chunk, ChunkDescriptor, ListChunkDescriptor
 from .wave_ixml_reader import WavIXMLFormat
 from .wave_bext_reader import WavBextReader
 from .wave_info_reader import WavInfoChunkReader
+from .wave_adm_reader import WavADMReader
 
 #: Calculated statistics about the audio data.
 WavDataDescriptor = namedtuple('WavDataDescriptor', 'byte_count frame_count')
@@ -28,43 +28,62 @@ class WavInfoReader:
         """
         Create a new reader object.
 
-        :param path: A filesystem path to the wav file you wish to probe.
+        :param path: 
+            A filesystem path to the wav file you wish to probe or a 
+            file handle to an open file.
+
+        :param info_encoding: 
+            The text encoding of the INFO metadata fields.
+            latin_1/Win CP1252 has always been a pretty good guess for this.
+
+        :param bext_encoding: 
+            The text encoding to use when decoding the string
+            fields of the Broadcast-WAV extension. Per EBU 3285 this is ASCII
+            but this parameter is available to you if you encounter a weirdo.
 
-        :param info_encoding: The text encoding of the INFO metadata fields.
-          latin_1/Win CP1252 has always been a pretty good guess for this.
 
-        :param bext_encoding: The text encoding to use when decoding the string
-          fields of the Broadcast-WAV extension. Per EBU 3285 this is ASCII
-          but this parameter is available to you if you encounter a weirdo.
         """
-        absolute_path = os.path.abspath(path)
+        
-
-        #: `file://` url for the file.
-        self.url = pathlib.Path(absolute_path).as_uri()
-
-        # for __repr__()
-        self.path = absolute_path
         self.info_encoding = info_encoding
         self.bext_encoding = bext_encoding
+        
+        if hasattr(path, 'read'):
+            self.get_wav_info(path)
+            self.url = 'about:blank'
+            self.path = repr(path)
+        else:
+            absolute_path = os.path.abspath(path)
 
-        with open(path, 'rb') as f:
+            #: `file://` url for the file.
-            chunks = parse_chunk(f)
+            self.url = pathlib.Path(absolute_path).as_uri()
 
-            self.main_list = chunks.children
+            # for __repr__()
-            f.seek(0)
+            self.path = absolute_path
+            
+            with open(path, 'rb') as f:
+                self.get_wav_info(f)
+            
+    def get_wav_info(self, wavfile):
+        chunks = parse_chunk(wavfile)
 
-            #: :class:`wavinfo.wave_reader.WavAudioFormat`
+        self.main_list = chunks.children
-            self.fmt = self._get_format(f)
+        wavfile.seek(0)
 
-            #: :class:`wavinfo.wave_bext_reader.WavBextReader` with Broadcast-WAV metadata
+        #: :class:`wavinfo.wave_reader.WavAudioFormat`
-            self.bext = self._get_bext(f, encoding=bext_encoding)
+        self.fmt = self._get_format(wavfile)
 
-            #: :class:`wavinfo.wave_ixml_reader.WavIXMLFormat` with iXML metadata
+        #: :class:`wavinfo.wave_bext_reader.WavBextReader` with Broadcast-WAV metadata
-            self.ixml = self._get_ixml(f)
+        self.bext = self._get_bext(wavfile, encoding=self.bext_encoding)
 
-            #: :class:`wavinfo.wave_info_reader.WavInfoChunkReader` with RIFF INFO metadata
+        #: :class:`wavinfo.wave_ixml_reader.WavIXMLFormat` with iXML metadata
-            self.info = self._get_info(f, encoding=info_encoding)
+        self.ixml = self._get_ixml(wavfile)
-            self.data = self._describe_data()
+
+        #: :class:`wavinfo.wave_axml_reader.WavAxmlReader` with ADM metadata
+        self.adm  = self._get_adm(wavfile)
+
+        #: :class:`wavinfo.wave_info_reader.WavInfoChunkReader` with RIFF INFO metadata
+        self.info = self._get_info(wavfile, encoding=self.info_encoding)
+        self.data = self._describe_data()
 
     def _find_chunk_data(self, ident, from_stream, default_none=False):
         top_chunks = (chunk for chunk in self.main_list if type(chunk) is ChunkDescriptor and chunk.ident == ident)
@@ -72,7 +91,7 @@ class WavInfoReader:
         return chunk_descriptor.read_data(from_stream) if chunk_descriptor else None
 
     def _describe_data(self):
-        data_chunk = next(c for c in self.main_list if c.ident == b'data')
+        data_chunk = next(c for c in self.main_list if type(c) is ChunkDescriptor and c.ident == b'data')
 
         return WavDataDescriptor(byte_count=data_chunk.length,
                                  frame_count=int(data_chunk.length / self.fmt.block_align))
@@ -117,6 +136,11 @@ class WavInfoReader:
         bext_data = self._find_chunk_data(b'bext', f, default_none=True)
         return WavBextReader(bext_data, encoding) if bext_data else None
 
+    def _get_adm(self, f):
+        axml = self._find_chunk_data(b'axml', f, default_none=True)
+        chna = self._find_chunk_data(b'chna', f, default_none=True)
+        return WavADMReader(axml_data=axml, chna_data=chna) if axml and chna else None
+
     def _get_ixml(self, f):
         ixml_data = self._find_chunk_data(b'iXML', f, default_none=True)
         return None if ixml_data is None else WavIXMLFormat(ixml_data.rstrip(b'\0'))
@@ -127,24 +151,23 @@ class WavInfoReader:
 
         :yields: a string, the :scope: of the metadatum, the string :name: of the
         metadata field, and the value.
+
+        
         """
 
-        scopes = ('fmt', 'data')  # 'bext', 'ixml', 'info')
+        scopes = ('fmt', 'data', 'ixml', 'bext', 'info', 'adm')
 
         for scope in scopes:
-            attr = self.__getattribute__(scope)
+            if scope in ['fmt', 'data']:
-            for field in attr._fields:
+                attr = self.__getattribute__(scope)
-                yield scope, field, attr.__getattribute__(field)
+                for field in attr._fields:
+                    yield scope, field, attr.__getattribute__(field)
 
-            if self.bext is not None:
+            else:
-                bext_dict = (self.bext or {}).to_dict()
+                dict = self.__getattribute__(scope).to_dict() if self.__getattribute__(scope) else {}
-                for key in bext_dict.keys():
+                for key in dict.keys():
-                    yield 'bext', key, bext_dict[key]
+                    yield scope, key, dict[key]
-
+        
-            if self.info is not None:
-                info_dict = self.info.to_dict()
-                for key in info_dict.keys():
-                    yield 'info', key, info_dict[key]
 
     def __repr__(self):
-        return 'WavInfoReader(%s, %s, %s)'.format(self.path, self.info_encoding, self.bext_encoding)
+        return 'WavInfoReader({}, {}, {})'.format(self.path, self.info_encoding, self.bext_encoding)