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Allow sample reencoding to ogg and flac

master
Olivier Jolly 2016-01-30 00:21:41 +01:00
rodzic fb441c46a8
commit 80898594ab
2 zmienionych plików z 61 dodań i 59 usunięć
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72
rnsutils/sfztoxrni.py
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@ -26,6 +26,7 @@ import re
from copy import deepcopy
from rnsutils.instrument import RenoiseInstrument, second_to_renoise_time, db_to_renoise_volume
from rnsutils.utils import ENCODING_NONE, ENCODING_FLAC, ENCODING_OGG, encode_audio_file
__date__ = '2016-01-28'
__updated__ = '2016-01-28'
@ -63,60 +64,11 @@ def sfz_note_to_midi_key(sfz_note):
class SfzToXrni(object):
def __init__(self, sfz_path, show_unused=False, **kwargs):
def __init__(self, sfz_path, show_unused=False, encoding=ENCODING_NONE, **kwargs):
self.encoding = encoding
self.sfz_path = sfz_path
self.show_unused = show_unused
def convert_bag(self, sf2_bag, renoise_sample, renoise_modulation_set, default_sample, default_modulation_set):
# sample looping
renoise_sample.LoopRelease = sf2_bag.sample_loop_on_noteoff
renoise_sample.LoopMode = "Forward" if sf2_bag.sample_loop else "Off"
renoise_sample.LoopStart = sf2_bag.cooked_loop_start
renoise_sample.LoopEnd = sf2_bag.cooked_loop_end
# sample panning
renoise_sample.Panning = (sf2_bag.pan and sf2_bag.pan + 0.5) or default_sample.Panning
# sample tuning
renoise_sample.Transpose = sf2_bag.tuning or default_sample.Transpose
renoise_sample.Finetune = (sf2_bag.fine_tuning and (int(128 * sf2_bag.fine_tuning) / 100.)) or (
sf2_bag.sample and int(128 * (sf2_bag.sample.pitch_correction) / 100.)) or default_sample.Finetune
# volume envelope
renoise_modulation_set.Devices.SampleAhdsrModulationDevice.Attack.Value = self.to_renoise_time(
sf2_bag.volume_envelope_attack) or default_modulation_set.ahdsr_attack
renoise_modulation_set.Devices.SampleAhdsrModulationDevice.Decay.Value = self.to_renoise_time(
sf2_bag.volume_envelope_decay) or default_modulation_set.ahdsr_decay
renoise_modulation_set.Devices.SampleAhdsrModulationDevice.Hold.Value = self.to_renoise_time(
sf2_bag.volume_envelope_hold) or default_modulation_set.ahdsr_hold
renoise_modulation_set.Devices.SampleAhdsrModulationDevice.Sustain.Value = (
sf2_bag.volume_envelope_sustain is not None and (
sf2_bag.volume_envelope_sustain is not None and (
max(0,
1 - sf2_bag.volume_envelope_sustain / 96.))) or default_modulation_set.ahdsr_sustain)
renoise_modulation_set.Devices.SampleAhdsrModulationDevice.Release.Value = self.to_renoise_time(
sf2_bag.volume_envelope_release) or default_modulation_set.ahdsr_release
# low pass filter
renoise_modulation_set.Devices.SampleMixerModulationDevice.Cutoff.Value = self.freq_to_cutoff(
sf2_bag.lp_cutoff) if sf2_bag.lp_cutoff else default_modulation_set.lp_cutoff
# base note
renoise_sample.Mapping.BaseNote = sf2_bag.base_note or (
sf2_bag.sample and sf2_bag.sample.original_pitch) or default_sample.Mapping.BaseNote
# key mapping (key range and velocity)
renoise_sample.Mapping.NoteStart, renoise_sample.Mapping.NoteEnd = sf2_bag.key_range or (
default_sample.Mapping.NoteStart, default_sample.Mapping.NoteEnd)
renoise_sample.Mapping.VelocityStart, renoise_sample.Mapping.VelocityEnd = sf2_bag.velocity_range or (
default_sample.Mapping.VelocityStart, default_sample.Mapping.VelocityEnd)
def load_default_sample_settings(self, renoise_global_sample, renoise_global_modulation_set):
renoise_global_modulation_set.Devices.SampleMixerModulationDevice.Cutoff.Value = self.freq_to_cutoff(20000)
renoise_global_modulation_set.Devices.SampleAhdsrModulationDevice.Attack.Value = 0
@ -182,13 +134,13 @@ class SfzToXrni(object):
# copy wav content from sfz to renoise
sample_filename = search_case_insensitive_path(
os.path.join(self.sfz_path, str(renoise_sample.FileName)))
os.path.join(self.sfz_path, str(renoise_sample.FileName)))
if sample_filename is None:
logging.info("missing sample file '%s'", renoise_sample.FileName)
else:
with open(sample_filename, 'rb') as sample_content:
renoise_instrument.sample_data.append(sample_content.read())
renoise_instrument.sample_data.append(encode_audio_file(sample_content.read(), self.encoding))
section_idx += 1
@ -238,7 +190,7 @@ class SfzToXrni(object):
if renoise_sample.FileName.pyval[0] in (r'/', r'\\'):
renoise_sample.FileName = renoise_sample.FileName.pyval[1:]
# renoise_sample.Name = os.path.basename(value)
renoise_sample.Name, _ = os.path.splitext(os.path.basename(renoise_sample.FileName.pyval))
elif key == 'lokey':
renoise_sample.Mapping.NoteStart = sfz_note_to_midi_key(value)
elif key == 'hikey':
@ -254,15 +206,15 @@ class SfzToXrni(object):
float(value))
elif key == 'ampeg_hold':
renoise_modulation_set.Devices.SampleAhdsrModulationDevice.Hold.Value = second_to_renoise_time(
float(value))
float(value))
elif key == 'ampeg_decay':
renoise_modulation_set.Devices.SampleAhdsrModulationDevice.Decay.Value = second_to_renoise_time(
float(value))
float(value))
elif key == 'ampeg_sustain':
renoise_modulation_set.Devices.SampleAhdsrModulationDevice.Sustain.Value = 1 - float(value) / 100.
elif key == 'ampeg_release':
renoise_modulation_set.Devices.SampleAhdsrModulationDevice.Release.Value = second_to_renoise_time(
float(value))
float(value))
elif key == 'tune':
renoise_sample.Finetune = int(128 * float(value) / 100.)
elif key == 'transpose':
@ -306,8 +258,8 @@ class SfzToXrni(object):
if unused_keys and self.show_unused:
sys.stderr.write(
"Unused key(s) for section {}:\n{}\n".format(section_name,
"\n".join([" - " + k for k in unused_keys])))
"Unused key(s) for section {}:\n{}\n".format(section_name,
"\n".join([" - " + k for k in unused_keys])))
def main(argv=None):
@ -328,6 +280,8 @@ def main(argv=None):
parser.add_argument("-d", "--debug", dest="debug", action="store_true",
default=False,
help="debug parsing [default: %(default)s]")
parser.add_argument("-e", "--encode", dest="encoding", choices=[ENCODING_NONE, ENCODING_FLAC, ENCODING_OGG],
default="none", help="encode samples into given format [default: %(default)s]")
parser.add_argument("-q", "--quiet", dest="quiet", action="store_true", default=False,
help="quiet operation [default: %(default)s]")
parser.add_argument("-o", "--ouput-dir", dest="output_dir",

48
rnsutils/utils.py
Wyświetl plik

@ -1,4 +1,52 @@
import logging
import subprocess
import os
import tempfile
def guesstimate_audio_extension(data):
if len(data) > 8 and data[0:8] == b'fLaC\0\0\0\x22':
return "flac"
if len(data) > 3 and data[0:3] == b'Ogg':
return "ogg"
return None
ENCODING_NONE = "none"
ENCODING_FLAC = "flac"
ENCODING_OGG = "ogg"
def encode_audio_file(sample_content, encoding):
if encoding == ENCODING_FLAC:
in_filename = tempfile.NamedTemporaryFile(suffix='.wav', delete=False).name
out_filename = tempfile.NamedTemporaryFile(suffix='.flac', delete=False).name
try:
with open(in_filename, "wb") as infile:
infile.write(sample_content)
subprocess.check_call(["flac", in_filename, "-f", "-o", out_filename])
with open(out_filename, "rb") as outfile:
return outfile.read()
except:
logging.exception("Error while converting to flac")
finally:
os.remove(in_filename)
os.remove(out_filename)
elif encoding == ENCODING_OGG:
in_filename = tempfile.NamedTemporaryFile(suffix='.wav', delete=False).name
out_filename = tempfile.NamedTemporaryFile(suffix='.ogg', delete=False).name
try:
with open(in_filename, "wb") as infile:
infile.write(sample_content)
subprocess.check_call(["oggenc", in_filename, "-o", out_filename])
with open(out_filename, "rb") as outfile:
return outfile.read()
except:
logging.exception("Error while converting to ogg")
finally:
os.remove(in_filename)
os.remove(out_filename)
return sample_content