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Sideband/sbapp/pyogg/vorbis.py

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Added pyogg
2024-06-02 17:54:58 -06:00
############################################################
# Vorbis license: #
############################################################
"""
Copyright (c) 2002-2015 Xiph.org Foundation
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
- Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
- Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
- Neither the name of the Xiph.org Foundation nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION
OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
"""
import ctypes
import ctypes.util
from traceback import print_exc as _print_exc
import os
OV_EXCLUDE_STATIC_CALLBACKS = False
__MINGW32__ = False
_WIN32 = False
from .ogg import *
from .library_loader import ExternalLibrary, ExternalLibraryError
__here = os.getcwd()
libvorbis = None
try:
names = {
"Windows": "libvorbis.dll",
"Darwin": "libvorbis.0.dylib",
"external": "vorbis"
}
libvorbis = Library.load(names, tests = [lambda lib: hasattr(lib, "vorbis_info_init")])
except ExternalLibraryError:
pass
except:
_print_exc()
libvorbisfile = None
try:
names = {
"Windows": "libvorbisfile.dll",
"Darwin": "libvorbisfile.3.dylib",
"external": "vorbisfile"
}
libvorbisfile = Library.load(names, tests = [lambda lib: hasattr(lib, "ov_clear")])
except ExternalLibraryError:
pass
except:
_print_exc()
libvorbisenc = None
# In some cases, libvorbis may also have the libvorbisenc functionality.
libvorbis_is_also_libvorbisenc = True
for f in ("vorbis_encode_ctl",
"vorbis_encode_init",
"vorbis_encode_init_vbr",
"vorbis_encode_setup_init",
"vorbis_encode_setup_managed",
"vorbis_encode_setup_vbr"):
if not hasattr(libvorbis, f):
libvorbis_is_also_libvorbisenc = False
break
if libvorbis_is_also_libvorbisenc:
libvorbisenc = libvorbis
else:
try:
names = {
"Windows": "libvorbisenc.dll",
"Darwin": "libvorbisenc.2.dylib",
"external": "vorbisenc"
}
libvorbisenc = Library.load(names, tests = [lambda lib: hasattr(lib, "vorbis_encode_init")])
except ExternalLibraryError:
pass
except:
_print_exc()
if libvorbis is None:
PYOGG_VORBIS_AVAIL = False
else:
PYOGG_VORBIS_AVAIL = True
if libvorbisfile is None:
PYOGG_VORBIS_FILE_AVAIL = False
else:
PYOGG_VORBIS_FILE_AVAIL = True
if libvorbisenc is None:
PYOGG_VORBIS_ENC_AVAIL = False
else:
PYOGG_VORBIS_ENC_AVAIL = True
# FIXME: What's the story with the lack of checking for PYOGG_VORBIS_ENC_AVAIL?
# We just seem to assume that it's available.
if PYOGG_OGG_AVAIL and PYOGG_VORBIS_AVAIL and PYOGG_VORBIS_FILE_AVAIL:
# Sanity check also satisfies mypy type checking
assert libogg is not None
assert libvorbis is not None
assert libvorbisfile is not None
# codecs
class vorbis_info(ctypes.Structure):
"""
Wrapper for:
typedef struct vorbis_info vorbis_info;
"""
_fields_ = [("version", c_int),
("channels", c_int),
("rate", c_long),
("bitrate_upper", c_long),
("bitrate_nominal", c_long),
("bitrate_lower", c_long),
("bitrate_window", c_long),
("codec_setup", c_void_p)]
class vorbis_dsp_state(ctypes.Structure):
"""
Wrapper for:
typedef struct vorbis_dsp_state vorbis_dsp_state;
"""
_fields_ = [("analysisp", c_int),
("vi", POINTER(vorbis_info)),
("pcm", c_float_p_p),
("pcmret", c_float_p_p),
("pcm_storage", c_int),
("pcm_current", c_int),
("pcm_returned", c_int),
("preextrapolate", c_int),
("eofflag", c_int),
("lW", c_long),
("W", c_long),
("nW", c_long),
("centerW", c_long),
("granulepos", ogg_int64_t),
("sequence", ogg_int64_t),
("glue_bits", ogg_int64_t),
("time_bits", ogg_int64_t),
("floor_bits", ogg_int64_t),
("res_bits", ogg_int64_t),
("backend_state", c_void_p)]
class alloc_chain(ctypes.Structure):
"""
Wrapper for:
typedef struct alloc_chain;
"""
pass
alloc_chain._fields_ = [("ptr", c_void_p),
("next", POINTER(alloc_chain))]
class vorbis_block(ctypes.Structure):
"""
Wrapper for:
typedef struct vorbis_block vorbis_block;
"""
_fields_ = [("pcm", c_float_p_p),
("opb", oggpack_buffer),
("lW", c_long),
("W", c_long),
("nW", c_long),
("pcmend", c_int),
("mode", c_int),
("eofflag", c_int),
("granulepos", ogg_int64_t),
("sequence", ogg_int64_t),
("vd", POINTER(vorbis_dsp_state)),
("localstore", c_void_p),
("localtop", c_long),
("localalloc", c_long),
("totaluse", c_long),
("reap", POINTER(alloc_chain)),
("glue_bits", c_long),
("time_bits", c_long),
("floor_bits", c_long),
("res_bits", c_long),
("internal", c_void_p)]
class vorbis_comment(ctypes.Structure):
"""
Wrapper for:
typedef struct vorbis_comment vorbis_comment;
"""
_fields_ = [("user_comments", c_char_p_p),
("comment_lengths", c_int_p),
("comments", c_int),
("vendor", c_char_p)]
vi_p = POINTER(vorbis_info)
vc_p = POINTER(vorbis_comment)
vd_p = POINTER(vorbis_dsp_state)
vb_p = POINTER(vorbis_block)
libvorbis.vorbis_info_init.restype = None
libvorbis.vorbis_info_init.argtypes = [vi_p]
def vorbis_info_init(vi):
libvorbis.vorbis_info_init(vi)
libvorbis.vorbis_info_clear.restype = None
libvorbis.vorbis_info_clear.argtypes = [vi_p]
def vorbis_info_clear(vi):
libvorbis.vorbis_info_clear(vi)
libvorbis.vorbis_info_blocksize.restype = c_int
libvorbis.vorbis_info_blocksize.argtypes = [vi_p, c_int]
def vorbis_info_blocksize(vi, zo):
return libvorbis.vorbis_info_blocksize(vi, zo)
libvorbis.vorbis_comment_init.restype = None
libvorbis.vorbis_comment_init.argtypes = [vc_p]
def vorbis_comment_init(vc):
libvorbis.vorbis_comment_init(vc)
libvorbis.vorbis_comment_add.restype = None
libvorbis.vorbis_comment_add.argtypes = [vc_p, c_char_p]
def vorbis_comment_add(vc, comment):
libvorbis.vorbis_comment_add(vc, comment)
libvorbis.vorbis_comment_add_tag.restype = None
libvorbis.vorbis_comment_add_tag.argtypes = [vc_p, c_char_p, c_char_p]
def vorbis_comment_add_tag(vc, tag, comment):
libvorbis.vorbis_comment_add_tag(vc, tag, comment)
libvorbis.vorbis_comment_query.restype = c_char_p
libvorbis.vorbis_comment_query.argtypes = [vc_p, c_char_p, c_int]
def vorbis_comment_query(vc, tag, count):
libvorbis.vorbis_comment_query(vc, tag, count)
libvorbis.vorbis_comment_query_count.restype = c_int
libvorbis.vorbis_comment_query_count.argtypes = [vc_p, c_char_p]
def vorbis_comment_query_count(vc, tag):
libvorbis.vorbis_comment_query_count(vc, tag)
libvorbis.vorbis_comment_clear.restype = None
libvorbis.vorbis_comment_clear.argtypes = [vc_p]
def vorbis_comment_clear(vc):
libvorbis.vorbis_comment_clear(vc)
libvorbis.vorbis_block_init.restype = c_int
libvorbis.vorbis_block_init.argtypes = [vd_p, vb_p]
def vorbis_block_init(v,vb):
return libvorbis.vorbis_block_init(v,vb)
libvorbis.vorbis_block_clear.restype = c_int
libvorbis.vorbis_block_clear.argtypes = [vb_p]
def vorbis_block_clear(vb):
return libvorbis.vorbis_block_clear(vb)
libvorbis.vorbis_dsp_clear.restype = None
libvorbis.vorbis_dsp_clear.argtypes = [vd_p]
def vorbis_dsp_clear(v):
return libvorbis.vorbis_dsp_clear(v)
libvorbis.vorbis_granule_time.restype = c_double
libvorbis.vorbis_granule_time.argtypes = [vd_p, ogg_int64_t]
def vorbis_granule_time(v, granulepos):
return libvorbis.vorbis_granule_time(v, granulepos)
libvorbis.vorbis_version_string.restype = c_char_p
libvorbis.vorbis_version_string.argtypes = []
def vorbis_version_string():
return libvorbis.vorbis_version_string()
libvorbis.vorbis_analysis_init.restype = c_int
libvorbis.vorbis_analysis_init.argtypes = [vd_p, vi_p]
def vorbis_analysis_init(v, vi):
return libvorbis.vorbis_analysis_init(v, vi)
libvorbis.vorbis_commentheader_out.restype = c_int
libvorbis.vorbis_commentheader_out.argtypes = [vc_p, op_p]
def vorbis_commentheader_out(vc, op):
return libvorbis.vorbis_commentheader_out(vc, op)
libvorbis.vorbis_analysis_headerout.restype = c_int
libvorbis.vorbis_analysis_headerout.argtypes = [vd_p, vc_p, op_p, op_p, op_p]
def vorbis_analysis_headerout(v,vc, op, op_comm, op_code):
return libvorbis.vorbis_analysis_headerout(v,vc, op, op_comm, op_code)
libvorbis.vorbis_analysis_buffer.restype = c_float_p_p
libvorbis.vorbis_analysis_buffer.argtypes = [vd_p, c_int]
def vorbis_analysis_buffer(v, vals):
return libvorbis.vorbis_analysis_buffer(v, vals)
libvorbis.vorbis_analysis_wrote.restype = c_int
libvorbis.vorbis_analysis_wrote.argtypes = [vd_p, c_int]
def vorbis_analysis_wrote(v, vals):
return libvorbis.vorbis_analysis_wrote(v, vals)
libvorbis.vorbis_analysis_blockout.restype = c_int
libvorbis.vorbis_analysis_blockout.argtypes = [vd_p, vb_p]
def vorbis_analysis_blockout(v, vb):
return libvorbis.vorbis_analysis_blockout(v, vb)
libvorbis.vorbis_analysis.restype = c_int
libvorbis.vorbis_analysis.argtypes = [vb_p, op_p]
def vorbis_analysis(vb, op):
return libvorbis.vorbis_analysis(vb, op)
libvorbis.vorbis_bitrate_addblock.restype = c_int
libvorbis.vorbis_bitrate_addblock.argtypes = [vb_p]
def vorbis_bitrate_addblock(vb):
return libvorbis.vorbis_bitrate_addblock(vb)
libvorbis.vorbis_bitrate_flushpacket.restype = c_int
libvorbis.vorbis_bitrate_flushpacket.argtypes = [vd_p, op_p]
def vorbis_bitrate_flushpacket(vd, op):
return libvorbis.vorbis_bitrate_flushpacket(vd, op)
libvorbis.vorbis_synthesis_idheader.restype = c_int
libvorbis.vorbis_synthesis_idheader.argtypes = [op_p]
def vorbis_synthesis_idheader(op):
return libvorbis.vorbis_synthesis_idheader(op)
libvorbis.vorbis_synthesis_headerin.restype = c_int
libvorbis.vorbis_synthesis_headerin.argtypes = [vi_p, vc_p, op_p]
def vorbis_synthesis_headerin(vi, vc, op):
return libvorbis.vorbis_synthesis_headerin(vi, vc, op)
libvorbis.vorbis_synthesis_init.restype = c_int
libvorbis.vorbis_synthesis_init.argtypes = [vd_p, vi_p]
def vorbis_synthesis_init(v,vi):
return libvorbis.vorbis_synthesis_init(v,vi)
libvorbis.vorbis_synthesis_restart.restype = c_int
libvorbis.vorbis_synthesis_restart.argtypes = [vd_p]
def vorbis_synthesis_restart(v):
return libvorbis.vorbis_synthesis_restart(v)
libvorbis.vorbis_synthesis.restype = c_int
libvorbis.vorbis_synthesis.argtypes = [vb_p, op_p]
def vorbis_synthesis(vb, op):
return libvorbis.vorbis_synthesis(vb, op)
libvorbis.vorbis_synthesis_trackonly.restype = c_int
libvorbis.vorbis_synthesis_trackonly.argtypes = [vb_p, op_p]
def vorbis_synthesis_trackonly(vb, op):
return libvorbis.vorbis_synthesis_trackonly(vb, op)
libvorbis.vorbis_synthesis_blockin.restype = c_int
libvorbis.vorbis_synthesis_blockin.argtypes = [vd_p, vb_p]
def vorbis_synthesis_blockin(v, vb):
return libvorbis.vorbis_synthesis_blockin(v, vb)
libvorbis.vorbis_synthesis_pcmout.restype = c_int
libvorbis.vorbis_synthesis_pcmout.argtypes = [vd_p, c_float_p_p_p]
def vorbis_synthesis_pcmout(v, pcm):
return libvorbis.vorbis_synthesis_pcmout(v, pcm)
libvorbis.vorbis_synthesis_lapout.restype = c_int
libvorbis.vorbis_synthesis_lapout.argtypes = [vd_p, c_float_p_p_p]
def vorbis_synthesis_lapout(v, pcm):
return libvorbis.vorbis_synthesis_lapout(v, pcm)
libvorbis.vorbis_synthesis_read.restype = c_int
libvorbis.vorbis_synthesis_read.argtypes = [vd_p, c_int]
def vorbis_synthesis_read(v, samples):
return libvorbis.vorbis_synthesis_read(v, samples)
libvorbis.vorbis_packet_blocksize.restype = c_long
libvorbis.vorbis_packet_blocksize.argtypes = [vi_p, op_p]
def vorbis_packet_blocksize(vi, op):
return libvorbis.vorbis_packet_blocksize(vi, op)
libvorbis.vorbis_synthesis_halfrate.restype = c_int
libvorbis.vorbis_synthesis_halfrate.argtypes = [vi_p, c_int]
def vorbis_synthesis_halfrate(v, flag):
return libvorbis.vorbis_synthesis_halfrate(v, flag)
libvorbis.vorbis_synthesis_halfrate_p.restype = c_int
libvorbis.vorbis_synthesis_halfrate_p.argtypes = [vi_p]
def vorbis_synthesis_halfrate_p(vi):
return libvorbis.vorbis_synthesis_halfrate_p(vi)
OV_FALSE = -1
OV_EOF = -2
OV_HOLE = -3
OV_EREAD = -128
OV_EFAULT = -129
OV_EIMPL =-130
OV_EINVAL =-131
OV_ENOTVORBIS =-132
OV_EBADHEADER =-133
OV_EVERSION =-134
OV_ENOTAUDIO =-135
OV_EBADPACKET =-136
OV_EBADLINK =-137
OV_ENOSEEK =-138
# end of codecs
# vorbisfile
read_func = ctypes.CFUNCTYPE(c_size_t,
c_void_p,
c_size_t,
c_size_t,
c_void_p)
seek_func = ctypes.CFUNCTYPE(c_int,
c_void_p,
ogg_int64_t,
c_int)
close_func = ctypes.CFUNCTYPE(c_int,
c_void_p)
tell_func = ctypes.CFUNCTYPE(c_long,
c_void_p)
class ov_callbacks(ctypes.Structure):
"""
Wrapper for:
typedef struct ov_callbacks;
"""
_fields_ = [("read_func", read_func),
("seek_func", seek_func),
("close_func", close_func),
("tell_func", tell_func)]
NOTOPEN = 0
PARTOPEN = 1
OPENED = 2
STREAMSET = 3
INITSET = 4
class OggVorbis_File(ctypes.Structure):
"""
Wrapper for:
typedef struct OggVorbis_File OggVorbis_File;
"""
_fields_ = [("datasource", c_void_p),
("seekable", c_int),
("offset", ogg_int64_t),
("end", ogg_int64_t),
("oy", ogg_sync_state),
("links", c_int),
("offsets", ogg_int64_t_p),
("dataoffsets", ogg_int64_t_p),
("serialnos", c_long_p),
("pcmlengths", ogg_int64_t_p),
("vi", vi_p),
("vc", vc_p),
("pcm_offset", ogg_int64_t),
("ready_state", c_int),
("current_serialno", c_long),
("current_link", c_int),
("bittrack", c_double),
("samptrack", c_double),
("os", ogg_stream_state),
("vd", vorbis_dsp_state),
("vb", vorbis_block),
("callbacks", ov_callbacks)]
vf_p = POINTER(OggVorbis_File)
libvorbisfile.ov_clear.restype = c_int
libvorbisfile.ov_clear.argtypes = [vf_p]
def ov_clear(vf):
return libvorbisfile.ov_clear(vf)
libvorbisfile.ov_fopen.restype = c_int
libvorbisfile.ov_fopen.argtypes = [c_char_p, vf_p]
def ov_fopen(path, vf):
return libvorbisfile.ov_fopen(to_char_p(path), vf)
libvorbisfile.ov_open_callbacks.restype = c_int
libvorbisfile.ov_open_callbacks.argtypes = [c_void_p, vf_p, c_char_p, c_long, ov_callbacks]
def ov_open_callbacks(datasource, vf, initial, ibytes, callbacks):
return libvorbisfile.ov_open_callbacks(datasource, vf, initial, ibytes, callbacks)
def ov_open(*args, **kw):
raise PyOggError("ov_open is not supported, please use ov_fopen instead")
def ov_test(*args, **kw):
raise PyOggError("ov_test is not supported")
libvorbisfile.ov_test_callbacks.restype = c_int
libvorbisfile.ov_test_callbacks.argtypes = [c_void_p, vf_p, c_char_p, c_long, ov_callbacks]
def ov_test_callbacks(datasource, vf, initial, ibytes, callbacks):
return libvorbisfile.ov_test_callbacks(datasource, vf, initial, ibytes, callbacks)
libvorbisfile.ov_test_open.restype = c_int
libvorbisfile.ov_test_open.argtypes = [vf_p]
def ov_test_open(vf):
return libvorbisfile.ov_test_open(vf)
libvorbisfile.ov_bitrate.restype = c_long
libvorbisfile.ov_bitrate.argtypes = [vf_p, c_int]
def ov_bitrate(vf, i):
return libvorbisfile.ov_bitrate(vf, i)
libvorbisfile.ov_bitrate_instant.restype = c_long
libvorbisfile.ov_bitrate_instant.argtypes = [vf_p]
def ov_bitrate_instant(vf):
return libvorbisfile.ov_bitrate_instant(vf)
libvorbisfile.ov_streams.restype = c_long
libvorbisfile.ov_streams.argtypes = [vf_p]
def ov_streams(vf):
return libvorbisfile.ov_streams(vf)
libvorbisfile.ov_seekable.restype = c_long
libvorbisfile.ov_seekable.argtypes = [vf_p]
def ov_seekable(vf):
return libvorbisfile.ov_seekable(vf)
libvorbisfile.ov_serialnumber.restype = c_long
libvorbisfile.ov_serialnumber.argtypes = [vf_p, c_int]
def ov_serialnumber(vf, i):
return libvorbisfile.ov_serialnumber(vf, i)
libvorbisfile.ov_raw_total.restype = ogg_int64_t
libvorbisfile.ov_raw_total.argtypes = [vf_p, c_int]
def ov_raw_total(vf, i):
return libvorbisfile.ov_raw_total(vf, i)
libvorbisfile.ov_pcm_total.restype = ogg_int64_t
libvorbisfile.ov_pcm_total.argtypes = [vf_p, c_int]
def ov_pcm_total(vf, i):
return libvorbisfile.ov_pcm_total(vf, i)
libvorbisfile.ov_time_total.restype = c_double
libvorbisfile.ov_time_total.argtypes = [vf_p, c_int]
def ov_time_total(vf, i):
return libvorbisfile.ov_time_total(vf, i)
libvorbisfile.ov_raw_seek.restype = c_int
libvorbisfile.ov_raw_seek.argtypes = [vf_p, ogg_int64_t]
def ov_raw_seek(vf, pos):
return libvorbisfile.ov_raw_seek(vf, pos)
libvorbisfile.ov_pcm_seek.restype = c_int
libvorbisfile.ov_pcm_seek.argtypes = [vf_p, ogg_int64_t]
def ov_pcm_seek(vf, pos):
return libvorbisfile.ov_pcm_seek(vf, pos)
libvorbisfile.ov_pcm_seek_page.restype = c_int
libvorbisfile.ov_pcm_seek_page.argtypes = [vf_p, ogg_int64_t]
def ov_pcm_seek_page(vf, pos):
return libvorbisfile.ov_pcm_seek_page(vf, pos)
libvorbisfile.ov_time_seek.restype = c_int
libvorbisfile.ov_time_seek.argtypes = [vf_p, c_double]
def ov_time_seek(vf, pos):
return libvorbisfile.ov_time_seek(vf, pos)
libvorbisfile.ov_time_seek_page.restype = c_int
libvorbisfile.ov_time_seek_page.argtypes = [vf_p, c_double]
def ov_time_seek_page(vf, pos):
return libvorbisfile.ov_time_seek_page(vf, pos)
libvorbisfile.ov_raw_seek_lap.restype = c_int
libvorbisfile.ov_raw_seek_lap.argtypes = [vf_p, ogg_int64_t]
def ov_raw_seek_lap(vf, pos):
return libvorbisfile.ov_raw_seek_lap(vf, pos)
libvorbisfile.ov_pcm_seek_lap.restype = c_int
libvorbisfile.ov_pcm_seek_lap.argtypes = [vf_p, ogg_int64_t]
def ov_pcm_seek_lap(vf, pos):
return libvorbisfile.ov_pcm_seek_lap(vf, pos)
libvorbisfile.ov_pcm_seek_page_lap.restype = c_int
libvorbisfile.ov_pcm_seek_page_lap.argtypes = [vf_p, ogg_int64_t]
def ov_pcm_seek_page_lap(vf, pos):
return libvorbisfile.ov_pcm_seek_page_lap(vf, pos)
libvorbisfile.ov_time_seek_lap.restype = c_int
libvorbisfile.ov_time_seek_lap.argtypes = [vf_p, c_double]
def ov_time_seek_lap(vf, pos):
return libvorbisfile.ov_time_seek_lap(vf, pos)
libvorbisfile.ov_time_seek_page_lap.restype = c_int
libvorbisfile.ov_time_seek_page_lap.argtypes = [vf_p, c_double]
def ov_time_seek_page_lap(vf, pos):
return libvorbisfile.ov_time_seek_page_lap(vf, pos)
libvorbisfile.ov_raw_tell.restype = ogg_int64_t
libvorbisfile.ov_raw_tell.argtypes = [vf_p]
def ov_raw_tell(vf):
return libvorbisfile.ov_raw_tell(vf)
libvorbisfile.ov_pcm_tell.restype = ogg_int64_t
libvorbisfile.ov_pcm_tell.argtypes = [vf_p]
def ov_pcm_tell(vf):
return libvorbisfile.ov_pcm_tell(vf)
libvorbisfile.ov_time_tell.restype = c_double
libvorbisfile.ov_time_tell.argtypes = [vf_p]
def ov_time_tell(vf):
return libvorbisfile.ov_time_tell(vf)
libvorbisfile.ov_info.restype = vi_p
libvorbisfile.ov_info.argtypes = [vf_p, c_int]
def ov_info(vf, link):
return libvorbisfile.ov_info(vf, link)
libvorbisfile.ov_comment.restype = vc_p
libvorbisfile.ov_comment.argtypes = [vf_p, c_int]
def ov_comment(vf, link):
return libvorbisfile.ov_comment(vf, link)
libvorbisfile.ov_read_float.restype = c_long
libvorbisfile.ov_read_float.argtypes = [vf_p, c_float_p_p_p, c_int, c_int_p]
def ov_read_float(vf, pcm_channels, samples, bitstream):
return libvorbisfile.ov_read_float(vf, pcm_channels, samples, bitstream)
filter_ = ctypes.CFUNCTYPE(None,
c_float_p_p,
c_long,
c_long,
c_void_p)
try:
libvorbisfile.ov_read_filter.restype = c_long
libvorbisfile.ov_read_filter.argtypes = [vf_p, c_char_p, c_int, c_int, c_int, c_int, c_int_p, filter_, c_void_p]
def ov_read_filter(vf, buffer, length, bigendianp, word, sgned, bitstream, filter_, filter_param):
return libvorbisfile.ov_read_filter(vf, buffer, length, bigendianp, word, sgned, bitstream, filter_, filter_param)
except:
pass
libvorbisfile.ov_read.restype = c_long
libvorbisfile.ov_read.argtypes = [vf_p, c_char_p, c_int, c_int, c_int, c_int, c_int_p]
def ov_read(vf, buffer, length, bigendianp, word, sgned, bitstream):
return libvorbisfile.ov_read(vf, buffer, length, bigendianp, word, sgned, bitstream)
libvorbisfile.ov_crosslap.restype = c_int
libvorbisfile.ov_crosslap.argtypes = [vf_p, vf_p]
def ov_crosslap(vf1, cf2):
return libvorbisfile.ov_crosslap(vf1, vf2)
libvorbisfile.ov_halfrate.restype = c_int
libvorbisfile.ov_halfrate.argtypes = [vf_p, c_int]
def ov_halfrate(vf, flag):
return libvorbisfile.ov_halfrate(vf, flag)
libvorbisfile.ov_halfrate_p.restype = c_int
libvorbisfile.ov_halfrate_p.argtypes = [vf_p]
def ov_halfrate_p(vf):
return libvorbisfile.ov_halfrate_p(vf)
# end of vorbisfile
try:
# vorbisenc
# Sanity check also satisfies mypy type checking
assert libvorbisenc is not None
libvorbisenc.vorbis_encode_init.restype = c_int
libvorbisenc.vorbis_encode_init.argtypes = [vi_p, c_long, c_long, c_long, c_long, c_long]
def vorbis_encode_init(vi, channels, rate, max_bitrate, nominal_bitrate, min_bitrate):
return libvorbisenc.vorbis_encode_init(vi, channels, rate, max_bitrate, nominal_bitrate, min_bitrate)
libvorbisenc.vorbis_encode_setup_managed.restype = c_int
libvorbisenc.vorbis_encode_setup_managed.argtypes = [vi_p, c_long, c_long, c_long, c_long, c_long]
def vorbis_encode_setup_managed(vi, channels, rate, max_bitrate, nominal_bitrate, min_bitrate):
return libvorbisenc.vorbis_encode_setup_managed(vi, channels, rate, max_bitrate, nominal_bitrate, min_bitrate)
libvorbisenc.vorbis_encode_setup_vbr.restype = c_int
libvorbisenc.vorbis_encode_setup_vbr.argtypes = [vi_p, c_long, c_long, c_float]
def vorbis_encode_setup_vbr(vi, channels, rate, quality):
return libvorbisenc.vorbis_encode_setup_vbr(vi, channels, rate, quality)
libvorbisenc.vorbis_encode_init_vbr.restype = c_int
libvorbisenc.vorbis_encode_init_vbr.argtypes = [vi_p, c_long, c_long, c_float]
def vorbis_encode_init_vbr(vi, channels, rate, quality):
return libvorbisenc.vorbis_encode_init_vbr(vi, channels, rate, quality)
libvorbisenc.vorbis_encode_setup_init.restype = c_int
libvorbisenc.vorbis_encode_setup_init.argtypes = [vi_p]
def vorbis_encode_setup_init(vi):
return libvorbisenc.vorbis_encode_setup_init(vi)
libvorbisenc.vorbis_encode_ctl.restype = c_int
libvorbisenc.vorbis_encode_ctl.argtypes = [vi_p, c_int, c_void_p]
def vorbis_encode_ctl(vi, number, arg):
return libvorbisenc.vorbis_encode_ctl(vi, number, arg)
class ovectl_ratemanage_arg(ctypes.Structure):
_fields_ = [("management_active", c_int),
("bitrate_hard_min", c_long),
("bitrate_hard_max", c_long),
("bitrate_hard_window", c_double),
("bitrate_av_lo", c_long),
("bitrate_av_hi", c_long),
("bitrate_av_window", c_double),
("bitrate_av_window_center", c_double)]
class ovectl_ratemanage2_arg(ctypes.Structure):
_fields_ = [("management_active", c_int),
("bitrate_limit_min_kbps", c_long),
("bitrate_limit_max_kbps", c_long),
("bitrate_limit_reservoir_bits", c_long),
("bitrate_limit_reservoir_bias", c_double),
("bitrate_average_kbps", c_long),
("bitrate_average_damping", c_double)]
OV_ECTL_RATEMANAGE2_GET =0x14
OV_ECTL_RATEMANAGE2_SET =0x15
OV_ECTL_LOWPASS_GET =0x20
OV_ECTL_LOWPASS_SET =0x21
OV_ECTL_IBLOCK_GET =0x30
OV_ECTL_IBLOCK_SET =0x31
OV_ECTL_COUPLING_GET =0x40
OV_ECTL_COUPLING_SET =0x41
OV_ECTL_RATEMANAGE_GET =0x10
OV_ECTL_RATEMANAGE_SET =0x11
OV_ECTL_RATEMANAGE_AVG =0x12
OV_ECTL_RATEMANAGE_HARD =0x13
# end of vorbisenc
except:
pass