def read_audio_file_new( self , file_name , target ):
time_a = time.time()
full_command = self.__cmd
(head, file) = os.path.split( file_name )
tmp_dir = tempfile.gettempdir()
tmp_file = os.path.join( tmp_dir , file ) + ".wav"
file_name = re.sub( "(\"|`|\$)" , r"\\\1" , file_name )
tmp_file = re.sub( "(\"|`|\$)" , r"_xyz_" , tmp_file )
full_command = full_command + " " + self.get_cmd_options( file_name , tmp_file )
#print_msg( full_command )
r = subprocess.call( full_command , shell=True , stderr=subprocess.PIPE , stdout=subprocess.PIPE )
#read_wav.read_wav( tmp_file )
ret_f = self.read_wav( tmp_file , target )
if os.path.exists( tmp_file ) :
os.remove( tmp_file )
else:
print_msg( file_name + ": unsupported encoder" )
time_b = time.time()
dr14_log_info( "AudioFileReader.read_audio_file_new: Clock: %2.8f" % (time_b - time_a ) )
return ret_f
def read_wav(self, file_name, target):
time_a = time.time()
convert_8_bit = numpy.float32(2**8 + 1.0)
convert_16_bit = numpy.float32(2**15 + 1.0)
convert_32_bit = numpy.float32(2**31 + 1.0)
try:
wave_read = wave.open(file_name, 'r')
target.channels = wave_read.getnchannels()
target.Fs = wave_read.getframerate()
target.sample_width = wave_read.getsampwidth()
nframes = wave_read.getnframes()
#print_msg( file_name + "!!!!!!!!!!!!: " + str(target.channels) + " " + str(target.sample_width ) + " " + str( target.Fs ) + " " + str( nframes ) )
X = wave_read.readframes(wave_read.getnframes())
sample_type = "int%d" % (target.sample_width * 8)
target.Y = numpy.fromstring(X, dtype=sample_type).reshape(
nframes, target.channels)
wave_read.close()
if sample_type == 'int16':
target.Y = target.Y / (convert_16_bit)
elif sample_type == 'int32':
target.Y = target.Y / (convert_32_bit)
else:
target.Y = target.Y / (convert_8_bit)
#print_msg( "target.Y: " + str(target.Y.dtype) )
except:
self.__init__()
print_msg("Unexpected error: %s" % str(sys.exc_info()))
print_msg("\n - ERROR ! ")
return False
time_b = time.time()
dr14_log_info("AudioFileReader.read_wav: Clock: %2.8f" %
(time_b - time_a))
return True
def read_wav( self , file_name , target ):
time_a = time.time()
convert_8_bit = numpy.float32( 2**8 + 1.0 )
convert_16_bit = numpy.float32( 2**15 + 1.0 )
convert_32_bit = numpy.float32( 2**31 + 1.0 )
try:
wave_read = wave.open( file_name , 'r' )
target.channels = wave_read.getnchannels()
target.Fs = wave_read.getframerate()
target.sample_width = wave_read.getsampwidth()
nframes = wave_read.getnframes()
#print_msg( file_name + "!!!!!!!!!!!!: " + str(target.channels) + " " + str(target.sample_width ) + " " + str( target.Fs ) + " " + str( nframes ) )
X = wave_read.readframes( wave_read.getnframes() )
sample_type = "int%d" % ( target.sample_width * 8 )
target.Y = numpy.fromstring(X, dtype=sample_type ).reshape( nframes , target.channels )
wave_read.close()
if sample_type == 'int16':
target.Y = target.Y / ( convert_16_bit )
elif sample_type == 'int32':
target.Y = target.Y / ( convert_32_bit )
else :
target.Y = target.Y / ( convert_8_bit )
#print_msg( "target.Y: " + str(target.Y.dtype) )
except:
self.__init__()
print_msg ( "Unexpected error: %s" % str( sys.exc_info() ) )
print_msg ( "\n - ERROR ! " )
return False
time_b = time.time()
dr14_log_info( "AudioFileReader.read_wav: Clock: %2.8f" % (time_b - time_a ) )
return True
def read_audio_file_new(self, file_name, target):
time_a = time.time()
full_command = self.__cmd
(head, file) = os.path.split(file_name)
tmp_dir = tempfile.gettempdir()
tmp_file = os.path.join(tmp_dir, file) + ".wav"
file_name = re.sub("(\"|`|\$)", r"\\\1", file_name)
tmp_file = re.sub("(\"|`|\$)", r"_xyz_", tmp_file)
full_command = full_command + " " + \
self.get_cmd_options(file_name, tmp_file)
#print_msg( full_command )
r = subprocess.Popen(full_command,
shell=True,
stderr=subprocess.PIPE,
stdout=subprocess.PIPE)
stdout_data, stderr_data = r.communicate()
#read_wav.read_wav( tmp_file )
ret_f = self.read_wav(tmp_file, target)
if os.path.exists(tmp_file):
os.remove(tmp_file)
else:
print_msg(file_name + ": unsupported encoder")
time_b = time.time()
dr14_log_info("AudioFileReader.read_audio_file_new: Clock: %2.8f" %
(time_b - time_a))
return ret_f
