def stream_wav(file_name):
wav_file = AudioFile.query.filter_by(name=file_name).first()
size = wav_file.size
byte1, byte2, length = get_byte_range(request, size)
vfs = get_azure_vfs()
with vfs.open(wav_file.path + '/' + wav_file.name) as f:
f.seek(byte1)
data = f.read(length)
response = Response(data,
206,
mimetype='audio/x-wav',
direct_passthrough=True)
response.headers.add(
'Content-Range', 'bytes {0}-{1}/{2}'.format(byte1, byte1 + length - 1,
size))
return response
def get_clip(file_name, offset):
window_size = current_app.config['CLIP_SECS']
wav_file = AudioFile.query.filter_by(name=file_name).first()
fpath = wav_file.path + '/' + wav_file.name
vfs = get_azure_vfs()
with vfs.open(fpath) as f:
with sf.SoundFile(f) as sf_desc:
sr = sf_desc.samplerate
pos = int(float(offset) * sr)
sf_desc.seek(pos)
frame_duration = int(window_size * sr)
clip_data = sf_desc.read(frames=frame_duration)
tmp_f = io.BytesIO()
sf.write(tmp_f, clip_data, sr, format='WAV')
tmp_f.seek(0)
return tmp_f
def stream_compressed(file_name, file_type):
wav_file = AudioFile.query.filter_by(name=file_name).first()
vfs = get_azure_vfs()
with vfs.open(wav_file.path + '/' + wav_file.name) as f:
out_f, output_mime = compress_audio(f, file_type)
size = sys.getsizeof(out_f)
byte1, byte2, length = get_byte_range(request, size)
out_f.seek(byte1)
data = out_f.read(length)
response = Response(data,
206,
mimetype=output_mime,
direct_passthrough=True)
response.headers.add(
'Content-Range', 'bytes {0}-{1}/{2}'.format(byte1, byte1 + length - 1,
size))
return response
app = create_app()
app.app_context().push()
# get the Azure path from the command line
base_path = sys.argv[1]
try:
t = time()
imported = 0
skipped = 0
existing = 0
moved = 0
duplicate = 0
vfs = get_azure_vfs()
dir_contents = vfs.walk(base_path, details=True)
for item in dir_contents:
if item['type'] == 'FILE':
path = Path(item['name'])
name_ext = path.suffix
if name_ext == '.wav':
file_name = path.name
file_path = str(path.parent)
file_size = item['length']
name_meta = path.stem.split('_')
if len(name_meta) == 3:
sn = name_meta[0]
timestamp = datetime.strptime(
name_meta[1] + ' ' + name_meta[2], '%Y%m%d %H%M%S')
# check for existing records for the file name