def from_pcm(cls, filename, pcmreader,
compression=None, total_pcm_frames=None):
"""encodes a new file from PCM data
takes a filename string, PCMReader object,
optional compression level string and
optional total_pcm_frames integer
encodes a new audio file from pcmreader's data
at the given filename with the specified compression level
and returns a new VorbisAudio object"""
from audiotools import (BufferedPCMReader,
__default_quality__,
EncodingError)
from audiotools.encoders import encode_vorbis
if (((compression is None) or
(compression not in cls.COMPRESSION_MODES))):
compression = __default_quality__(cls.NAME)
if pcmreader.bits_per_sample not in {8, 16, 24}:
from audiotools import UnsupportedBitsPerSample
pcmreader.close()
raise UnsupportedBitsPerSample(filename, pcmreader.bits_per_sample)
if (pcmreader.channels > 2) and (pcmreader.channels <= 8):
channel_mask = int(pcmreader.channel_mask)
if ((channel_mask != 0) and
(channel_mask not in
(0x7, # FR, FC, FL
0x33, # FR, FL, BR, BL
0x37, # FR, FC, FL, BL, BR
0x3f, # FR, FC, FL, BL, BR, LFE
0x70f, # FL, FC, FR, SL, SR, BC, LFE
0x63f))): # FL, FC, FR, SL, SR, BL, BR, LFE
from audiotools import UnsupportedChannelMask
pcmreader.close()
raise UnsupportedChannelMask(filename, channel_mask)
if total_pcm_frames is not None:
from audiotools import CounterPCMReader
pcmreader = CounterPCMReader(pcmreader)
try:
encode_vorbis(filename,
pcmreader,
float(compression) / 10)
if ((total_pcm_frames is not None) and
(total_pcm_frames != pcmreader.frames_written)):
from audiotools.text import ERR_TOTAL_PCM_FRAMES_MISMATCH
cls.__unlink__(filename)
raise EncodingError(ERR_TOTAL_PCM_FRAMES_MISMATCH)
return VorbisAudio(filename)
except (ValueError, IOError) as err:
cls.__unlink__(filename)
raise EncodingError(str(err))
finally:
pcmreader.close()
def from_pcm(cls,
filename,
pcmreader,
compression=None,
total_pcm_frames=None):
"""encodes a new file from PCM data
takes a filename string, PCMReader object,
optional compression level string and
optional total_pcm_frames integer
encodes a new audio file from pcmreader's data
at the given filename with the specified compression level
and returns a new VorbisAudio object"""
from audiotools import (BufferedPCMReader, __default_quality__,
EncodingError)
from audiotools.encoders import encode_vorbis
if (((compression is None)
or (compression not in cls.COMPRESSION_MODES))):
compression = __default_quality__(cls.NAME)
if pcmreader.bits_per_sample not in {8, 16, 24}:
from audiotools import UnsupportedBitsPerSample
pcmreader.close()
raise UnsupportedBitsPerSample(filename, pcmreader.bits_per_sample)
if (pcmreader.channels > 2) and (pcmreader.channels <= 8):
channel_mask = int(pcmreader.channel_mask)
if ((channel_mask != 0) and (channel_mask not in (
0x7, # FR, FC, FL
0x33, # FR, FL, BR, BL
0x37, # FR, FC, FL, BL, BR
0x3f, # FR, FC, FL, BL, BR, LFE
0x70f, # FL, FC, FR, SL, SR, BC, LFE
0x63f))): # FL, FC, FR, SL, SR, BL, BR, LFE
from audiotools import UnsupportedChannelMask
pcmreader.close()
raise UnsupportedChannelMask(filename, channel_mask)
if total_pcm_frames is not None:
from audiotools import CounterPCMReader
pcmreader = CounterPCMReader(pcmreader)
try:
encode_vorbis(filename, pcmreader, float(compression) / 10)
if ((total_pcm_frames is not None)
and (total_pcm_frames != pcmreader.frames_written)):
from audiotools.text import ERR_TOTAL_PCM_FRAMES_MISMATCH
cls.__unlink__(filename)
raise EncodingError(ERR_TOTAL_PCM_FRAMES_MISMATCH)
return VorbisAudio(filename)
except (ValueError, IOError) as err:
cls.__unlink__(filename)
raise EncodingError(str(err))
finally:
pcmreader.close()
def from_pcm(cls, filename, pcmreader,
compression=None, total_pcm_frames=None):
"""encodes a new file from PCM data
takes a filename string, PCMReader object,
optional compression level string and
optional total_pcm_frames integer
encodes a new audio file from pcmreader's data
at the given filename with the specified compression level
and returns a new VorbisAudio object"""
from audiotools import (BufferedPCMReader,
__default_quality__,
EncodingError)
from audiotools.encoders import encode_vorbis
if (((compression is None) or
(compression not in cls.COMPRESSION_MODES))):
compression = __default_quality__(cls.NAME)
if ((pcmreader.channels > 2) and (pcmreader.channels <= 8)):
channel_mask = int(pcmreader.channel_mask)
if ((channel_mask != 0) and
(channel_mask not in
(0x7, # FR, FC, FL
0x33, # FR, FL, BR, BL
0x37, # FR, FC, FL, BL, BR
0x3f, # FR, FC, FL, BL, BR, LFE
0x70f, # FL, FC, FR, SL, SR, BC, LFE
0x63f # FL, FC, FR, SL, SR, BL, BR, LFE
))):
raise UnsupportedChannelMask(filename, channel_mask)
try:
encode_vorbis(filename,
BufferedPCMReader(pcmreader),
float(compression) / 10)
return VorbisAudio(filename)
except (ValueError, IOError), err:
cls.__unlink__(filename)
raise EncodingError(str(err))
def from_pcm(cls, filename, pcmreader,
compression=None, total_pcm_frames=None):
"""encodes a new file from PCM data
takes a filename string, PCMReader object,
optional compression level string and
optional total_pcm_frames integer
encodes a new audio file from pcmreader's data
at the given filename with the specified compression level
and returns a new VorbisAudio object"""
from audiotools import (BufferedPCMReader,
__default_quality__,
EncodingError)
from audiotools.encoders import encode_vorbis
if (((compression is None) or
(compression not in cls.COMPRESSION_MODES))):
compression = __default_quality__(cls.NAME)
if ((pcmreader.channels > 2) and (pcmreader.channels <= 8)):
channel_mask = int(pcmreader.channel_mask)
if ((channel_mask != 0) and
(channel_mask not in
(0x7, # FR, FC, FL
0x33, # FR, FL, BR, BL
0x37, # FR, FC, FL, BL, BR
0x3f, # FR, FC, FL, BL, BR, LFE
0x70f, # FL, FC, FR, SL, SR, BC, LFE
0x63f))): # FL, FC, FR, SL, SR, BL, BR, LFE
raise UnsupportedChannelMask(filename, channel_mask)
try:
encode_vorbis(filename,
BufferedPCMReader(pcmreader),
float(compression) / 10)
return VorbisAudio(filename)
except (ValueError, IOError), err:
cls.__unlink__(filename)
raise EncodingError(str(err))