Update metadata.py

Version 2.0.0

.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

@@ -16,7 +16,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.8", "3.9", "3.10"]
+        python-version: ["3.8", "3.9", "3.10", "3.11"]
 
     steps:
     - uses: actions/checkout@v2.5.0

.github/workflows/pythonpublish.yml

@@ -29,7 +29,7 @@ jobs:
       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 }}

.gitignore

@@ -90,6 +90,7 @@ ENV/
 env.bak/
 venv.bak/
 docs_venv/
+venv_docs/
 
 # Spyder project settings
 .spyderproject
@@ -107,3 +108,5 @@ docs_venv/
 # vim swap
 *.swp
 .DS_Store
+
+.vscode/

.vscode/settings.json

@@ -1,3 +0,0 @@
-{
-    "esbonio.sphinx.confDir": ""
-}

README.md

@@ -9,19 +9,23 @@ The `wavinfo` package allows you to probe WAVE and [RF64/WAVE files][eburf64] an
 
 * __Broadcast-WAVE__ metadata<sup>[1][ebu]</sup>, including embedded program
   loudness and coding history, if extant. This also includes the SMPTE UMID<sup>[2][smpte_330m2011]</sup>.
-* __iXML__ production recorder metadata<sup>[3][ixml]</sup>, including project, scene, and take tags, recorder notes
+* ADM track metadata<sup>[3][adm]</sup>, including channel, pack formats, object and content names.
+* __iXML__ production recorder metadata<sup>[4][ixml]</sup>, 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__<sup>[5][info-tags]</sup> 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__.
 
+[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

docs/source/index.rst

@@ -10,9 +10,10 @@ Welcome to wavinfo's documentation!
    :maxdepth: 2
    :caption: Notes
   
+   metadata_scopes/adm.rst
    metadata_scopes/bext.rst
-   metadata_scopes/ixml.rst
    metadata_scopes/info.rst
+   metadata_scopes/ixml.rst
 
    classes
 

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:

metadata.py

@@ -1,6 +1,6 @@
 """
 Wavinfo
 """
-__version__ = '1.7.2'
+__version__ = '2.0.0'
 __author__ = 'Jamie Hardt <jamiehardt@gmail.com>'
 __license__ = "MIT"

setup.py

@@ -28,7 +28,8 @@ setup(name='wavinfo',
           'Topic :: Multimedia :: Sound/Audio',
           "Programming Language :: Python :: 3.8",
           "Programming Language :: Python :: 3.9",
-          "Programming Language :: Python :: 3.10"],
+          "Programming Language :: Python :: 3.10",
+          "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
 

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_axml_reader.py

@@ -1,9 +0,0 @@
-from lxml import etree as ET
-from collections import namedtuple
-
-from ear.fileio.bw64 import Bw64Reader
-
-
-
-
-

wavinfo/wave_ixml_reader.py

@@ -89,3 +89,13 @@ class WavIXMLFormat:
         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

@@ -9,6 +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')
@@ -75,6 +76,9 @@ class WavInfoReader:
         #: :class:`wavinfo.wave_ixml_reader.WavIXMLFormat` with iXML metadata
         self.ixml = self._get_ixml(wavfile)
 
+        #: :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()
@@ -130,6 +134,11 @@ 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'))
@@ -142,22 +151,29 @@ class WavInfoReader:
         metadata field, and the value.
         """
 
-        scopes = ('fmt', 'data')  # 'bext', 'ixml', 'info')
+        scopes = ('fmt', 'data', 'ixml', 'bext', 'info')
 
         for scope in scopes:
+            if scope in ['fmt', 'data']:
                 attr = self.__getattribute__(scope)
                 for field in attr._fields:
                     yield scope, field, attr.__getattribute__(field)
 
-            if self.bext is not None:
+            if scope in ['bext']:
-                bext_dict = (self.bext or {}).to_dict()
+                bext_dict = self.bext.to_dict() if self.bext else {}
                 for key in bext_dict.keys():
                     yield 'bext', key, bext_dict[key]
 
-            if self.info is not None:
+            if scope in ['info']:
-                info_dict = self.info.to_dict()
+                info_dict = self.info.to_dict() if self.info else {}
                 for key in info_dict.keys():
                     yield 'info', key, info_dict[key]
             
+            if scope in ['ixml']:
+                ixml_dict = self.ixml.to_dict() if self.ixml else {}
+                for key in ixml_dict.keys():
+                    yield 'ixml', key, ixml_dict[key]
+        
+
     def __repr__(self):
         return 'WavInfoReader({}, {}, {})'.format(self.path, self.info_encoding, self.bext_encoding)