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ADM metadata

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This commit is contained in:
Jamie Hardt
2022-11-26 13:39:55 -08:00
parent 8d908a3e34
commit 0acbe58f0b
4 changed files with 102 additions and 16 deletions
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64
wavinfo/wave_adm_reader.py
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@@ -41,6 +41,53 @@ class WavADMReader:
offset += calcsize(uid_fmt)
def xml_str(self) -> str:
"""ADM XML as a string"""
return ET.tostring(self.axml).decode("utf-8")
def programme(self) -> dict:
"""
Extract the ADM audioProgramme data structure and some of its reference properties
"""
ret_dict = dict()
nsmap = self.axml.getroot().nsmap
afext = self.axml.find(".//audioFormatExtended", namespaces=nsmap)
program = afext.find("audioProgramme", namespaces=nsmap)
ret_dict['programme_id'] = program.get("audioProgrammeID")
ret_dict['programme_name'] = program.get("audioProgrammeName")
ret_dict['programme_start'] = program.get("start")
ret_dict['programme_end'] = program.get("end")
ret_dict['contents'] = []
for content_ref in program.findall("audioContentIDRef", namespaces=nsmap):
content_dict = dict()
content_dict['content_id'] = cid = content_ref.text
content = afext.find("audioContent[@audioContentID='%s']" % cid, namespaces=nsmap)
content_dict['content_name'] = content.get("audioContentName")
content_dict['objects'] = []
for object_ref in content.findall("audioObjectIDRef", namespaces=nsmap):
object_dict = dict()
object_dict['object_id'] = oid = object_ref.text
object = afext.find("audioObject[@audioObjectID='%s']" % oid, namespaces=nsmap)
pack = object.find("audioPackFormatIDRef", namespaces=nsmap)
object_dict['object_name'] = object.get("audioObjectName")
object_dict['object_start'] = object.get("start")
object_dict['object_duration'] = object.get("duration")
object_dict['pack_id'] = pack.text
track_uid_list = []
for t in object.findall("audioTrackUIDRef", namespaces=nsmap):
track_uid_list.append(t.text)
object_dict['track_uids'] = track_uid_list
content_dict['objects'].append(object_dict)
ret_dict['contents'].append(content_dict)
return ret_dict
def track_info(self, index):
"""
@@ -61,36 +108,36 @@ class WavADMReader:
afext = self.axml.find(".//audioFormatExtended", namespaces=nsmap)
trackformat_elem = afext.find(".//audioTrackFormat[@audioTrackFormatID='%s']" % channel_info.track_ref,
trackformat_elem = afext.find("audioTrackFormat[@audioTrackFormatID='%s']" % channel_info.track_ref,
namespaces=nsmap)
stream_id = trackformat_elem[0].text
channelformatref_elem = afext.find(".//audioStreamFormat[@audioStreamFormatID='%s']/audioChannelFormatIDRef" % stream_id,
channelformatref_elem = afext.find("audioStreamFormat[@audioStreamFormatID='%s']/audioChannelFormatIDRef" % stream_id,
namespaces=nsmap)
channelformat_id = channelformatref_elem.text
packformatref_elem = afext.find(".//audioStreamFormat[@audioStreamFormatID='%s']/audioPackFormatIDRef" % stream_id,
packformatref_elem = afext.find("audioStreamFormat[@audioStreamFormatID='%s']/audioPackFormatIDRef" % stream_id,
namespaces=nsmap)
packformat_id = packformatref_elem.text
channelformat_elem = afext.find(".//audioChannelFormat[@audioChannelFormatID='%s']" % channelformat_id,
channelformat_elem = afext.find("audioChannelFormat[@audioChannelFormatID='%s']" % channelformat_id,
namespaces=nsmap)
ret_dict['channel_format_name'] = channelformat_elem.get("audioChannelFormatName")
packformat_elem = afext.find(".//audioPackFormat[@audioPackFormatID='%s']" % packformat_id,
packformat_elem = afext.find("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 = afext.find(".//audioObject[audioPackFormatIDRef = '%s']" % packformat_id,
object_elem = afext.find("audioObject[audioPackFormatIDRef = '%s']" % packformat_id,
namespaces=nsmap)
ret_dict['audio_object_name'] = object_elem.get("audioObjectName")
object_id = object_elem.get("audioObjectID")
ret_dict['object_id'] = object_id
content_elem = afext.find(".//audioContent/[audioObjectIDRef = '%s']" % object_id,
content_elem = afext.find("audioContent/[audioObjectIDRef = '%s']" % object_id,
namespaces=nsmap)
ret_dict['content_name'] = content_elem.get("audioContentName")
@@ -108,4 +155,5 @@ class WavADMReader:
rd.update(self.track_info(channel_uid_rec.track_index - 1))
return rd
return dict(channel_entries=list(map(lambda z: make_entry(z), self.channel_uids)))
return dict(channel_entries=list(map(lambda z: make_entry(z), self.channel_uids)),
programme=self.programme())