setup.py

#!/usr/bin/python

# Audio Tools, a module and set of tools for manipulating audio data
# Copyright (C) 2007-2016  Brian Langenberger

# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.

# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.

# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA

from __future__ import print_function
import sys

if sys.version_info[0] == 3:
    if sys.version_info[1] < 3:
        print("*** Python 3.3 or better required")
        sys.exit(1)
elif sys.version_info[0] == 2:
    if sys.version_info[1] < 7:
        print("*** Python 2.7 or better required")
        sys.exit(1)

import os
import os.path
import re
import subprocess
from distutils.core import setup, Extension
from distutils.command.build_ext import build_ext as _build_ext
try:
    from configparser import (RawConfigParser, NoSectionError, NoOptionError)
except ImportError:
    from ConfigParser import (RawConfigParser, NoSectionError, NoOptionError)


configfile = RawConfigParser()
configfile.read(["setup.cfg"])


VERSION = re.search(r'VERSION\s*=\s"(.+?)"',
                    open(os.path.join(
                        os.path.dirname(sys.argv[0]),
                        "audiotools/__init__.py")).read()).group(1)


LIBRARY_URLS = {"libcdio_paranoia": "http://www.gnu.org/software/libcdio/",
                "libcdio": "http://www.gnu.org/software/libcdio/",
                "libdvd-audio": "http://libdvd-audio.sourceforge.net",
                "libmpg123": "http://www.mpg123.org",
                "vorbisfile": "http://xiph.org",
                "opusfile": "http://www.opus-codec.org",
                "opus": "http://www.opus-codec.org",
                "mp3lame": "http://lame.sourceforge.net",
                "twolame": "http://twolame.sourceforge.net",
                "vorbisenc": "http://www.xiph.org",
                "alsa": "http://www.alsa-project.org",
                "libasound2": "http://www.alsa-project.org",
                "libpulse": "http://www.freedesktop.org",
                "wavpack": "http://www.wavpack.com"}


class SystemLibraries(object):
    def __init__(self, configfile):
        self.configfile = configfile

    def guaranteed_present(self, library):
        """given library name string
        returns True if library is guaranteed present,
        False if library is not present,
        None if one should probe for the library

        default is None"""

        try:
            if self.configfile.get("Libraries", library) == "probe":
                return None
            else:
                try:
                    return self.configfile.getboolean("Libraries", library)
                except ValueError:
                    return None
        except NoSectionError:
            return None
        except NoOptionError:
            return None

    def present(self, library):
        """returns True if the given library is present on the system,
        returns False if it cannot be found"""

        present = self.guaranteed_present(library)
        if present is None:
            # probe for library using pkg-config, if available
            try:
                pkg_config = subprocess.Popen(
                    ["pkg-config", "--exists", library],
                    stdout=open(os.devnull, "wb"),
                    stderr=open(os.devnull, "wb"))
                return (pkg_config.wait() == 0)
            except OSError:
                # pkg-config not found, so assume library isn't found
                return False
        else:
            return present

    def extra_compile_args(self, library):
        """returns a list of compile argument strings for populating
        an extension's 'extra_compile_args' argument

        the list may be empty"""

        try:
            pkg_config = subprocess.Popen(
                ["pkg-config", "--cflags", library],
                stdout=subprocess.PIPE,
                stderr=open(os.devnull, "wb"),
                universal_newlines=True)

            pkg_config_stdout = pkg_config.stdout.read().strip()

            if pkg_config.wait() == 0:
                # libraries found
                return pkg_config_stdout.split()
            else:
                # library not found
                return []
        except OSError:
            # pkg-config not found
            return []

    def extra_link_args(self, library):
        """returns a list of link argument strings for populating
        an extension's 'extra_link_args' argument

        the list may be empty"""

        try:
            pkg_config = subprocess.Popen(
                ["pkg-config", "--libs", library],
                stdout=subprocess.PIPE,
                stderr=open(os.devnull, "wb"),
                universal_newlines=True)

            pkg_config_stdout = pkg_config.stdout.read().strip()

            if pkg_config.wait() == 0:
                # libraries found
                return pkg_config_stdout.split()
            else:
                # library not found
                return []
        except OSError:
            # pkg-config not found
            return []

    def executable_present(self, executable, *args):
        """returns True if the given executable
        and any arguments execute with a 0 return status"""

        try:
            sub = subprocess.Popen([executable] + list(args),
                                   stdout=open(os.devnull, "wb"),
                                   stderr=open(os.devnull, "wb"))
            return (sub.wait() == 0)
        except OSError:
            return False

    def lib_version(self, library):
        """returns the library's version as a tuple"""

        try:
            pkg_config = subprocess.Popen(
                ["pkg-config", "--modversion", library],
                stdout=subprocess.PIPE,
                stderr=open(os.devnull, "wb"),
                universal_newlines=True)

            pkg_config_stdout = pkg_config.stdout.read().strip()

            if pkg_config.wait() == 0:
                try:
                    return tuple(int(s) for s in pkg_config_stdout.split("."))
                except ValueError:
                    # version isn't all integers
                    return tuple()
            else:
                # library not found
                return tuple()
        except OSError:
            # pkg-config not found
            return tuple()


system_libraries = SystemLibraries(configfile)


class output_table(object):
    def __init__(self):
        """a class for formatting rows for display"""

        self.__rows__ = []

    def row(self):
        """returns a output_table_row object which columns can be added to"""

        row = output_table_row()
        self.__rows__.append(row)
        return row

    def blank_row(self):
        """inserts a blank table row with no output"""

        self.__rows__.append(output_table_blank())

    def divider_row(self, dividers):
        """adds a row of unicode divider characters

        there should be one character in dividers per output column"""

        self.__rows__.append(output_table_divider(dividers))

    def total_width(self):
        return sum([
            max([row.column_width(col) for row in self.__rows__])
            for col in range(len(self.__rows__[0]))])

    def format(self):
        """yields one formatted string per row"""

        if len(self.__rows__) == 0:
            # no rows, so do nothing
            return

        if (len(set([len(r) for r in self.__rows__ if
                     not isinstance(r, output_table_blank)])) != 1):
            raise ValueError("all rows must have same number of columns")

        column_widths = [
            max([row.column_width(col) for row in self.__rows__])
            for col in range(len(self.__rows__[0]))]

        for row in self.__rows__:
            yield row.format(column_widths)


class output_table_row(object):
    def __init__(self):
        """a class for formatting columns for display"""

        self.__columns__ = []

    def __len__(self):
        return len(self.__columns__)

    def add_column(self, text, alignment="left"):
        """adds text which is a plain string and an optional alignment

        alignment may be 'left', 'center', 'right'"""

        if alignment not in ("left", "center", "right"):
            raise ValueError("alignment must be 'left', 'center', or 'right'")

        self.__columns__.append((text, alignment))

    def column_width(self, column):
        return len(self.__columns__[column][0])

    def format(self, column_widths):
        """returns formatted row as a string"""

        def align_left(text, width):
            spaces = width - len(text)

            if spaces > 0:
                return text + " " * spaces
            else:
                return text

        def align_right(text, width):
            spaces = width - len(text)

            if spaces > 0:
                return " " * spaces + text
            else:
                return text

        def align_center(text, width):
            left_spaces = (width - len(text)) // 2
            right_spaces = width - (left_spaces + len(text))

            if (left_spaces + right_spaces) > 0:
                return (" " * left_spaces +
                        text +
                        " " * right_spaces)
            else:
                return text

        # attribute to method mapping
        align_meth = {"left": align_left,
                      "right": align_right,
                      "center": align_center}

        assert(len(column_widths) == len(self.__columns__))

        return "".join([align_meth[alignment](text, width)
                        for ((text, alignment), width) in
                        zip(self.__columns__, column_widths)]).rstrip()


class output_table_divider(object):
    """a class for formatting a row of divider characters"""

    def __init__(self, dividers):
        self.__dividers__ = dividers[:]

    def __len__(self):
        return len(self.__dividers__)

    def column_width(self, column):
        return 0

    def format(self, column_widths):
        """returns formatted row as a string"""

        assert(len(column_widths) == len(self.__dividers__))

        return "".join([divider * width
                        for (divider, width) in
                        zip(self.__dividers__, column_widths)]).rstrip()


class output_table_blank(object):
    """a class for an empty table row"""

    def __init__(self):
        pass

    def column_width(self, column):
        return 0

    def format(self, column_widths):
        """returns formatted row as a string"""

        return ""


class build_ext(_build_ext):
    def build_extensions(self):
        _build_ext.build_extensions(self)

        # lib_name -> ([used for, ...], is present)
        libraries = {}

        for extension in self.extensions:
            if ((hasattr(extension, "library_manifest") and
                 callable(extension.library_manifest))):
                for (library,
                     used_for,
                     is_present) in extension.library_manifest():
                    if library in libraries:
                        libraries[library] = (
                            libraries[library][0] + [used_for],
                            libraries[library][1] and is_present)
                    else:
                        libraries[library] = ([used_for], is_present)

        if ext_audiotools_cdio not in self.extensions:
            libraries["libcdio"] = (["CDDA data extraction"], False)
        if ext_audiotools_dvdaudio not in self.extensions:
            libraries["libdvd-audio"] = (["DVD-Audio extraction"], False)

        all_libraries_present = (set([l[1] for l in libraries.values()]) ==
                                 set([True]))

        table = output_table()

        header = table.row()
        header.add_column("library", "right")
        header.add_column(" ")
        header.add_column("present?")
        header.add_column(" ")
        header.add_column("used for")
        if not all_libraries_present:
            header.add_column(" ")
            header.add_column("download URL")

        if not all_libraries_present:
            table.divider_row(["-", " ", "-", " ", "-", " ", "-"])
        else:
            table.divider_row(["-", " ", "-", " ", "-"])

        for library in sorted(libraries.keys()):
            row = table.row()
            row.add_column(library, "right")
            row.add_column(" ")
            row.add_column("yes" if libraries[library][1] else "no")
            row.add_column(" ")
            row.add_column(", ".join(libraries[library][0]))
            if not all_libraries_present:
                row.add_column(" ")
                if not libraries[library][1]:
                    row.add_column(LIBRARY_URLS[library])
                else:
                    row.add_column("")

        try:
            pkg_config = subprocess.Popen(
                ["pkg-config", "--version"],
                stdout=open(os.devnull, "wb"),
                stderr=open(os.devnull, "wb"))
            pkg_config_found = (pkg_config.wait() == 0)
        except OSError:
            pkg_config_found = False

        print("=" * table.total_width())
        print("Python Audio Tools {} Setup".format(VERSION))
        print("=" * table.total_width())

        if not pkg_config_found:
            def add_row(table, text, alignment="left"):
                row = table.row()
                row.add_column("*")
                row.add_column(text, alignment)
                row.add_column("*")

            table2 = output_table()
            row = table2.row()
            row.add_column("*")
            row.add_column("*" * 60)
            row.add_column("*")

            add_row(table2, "pkg-config not found", "center")

            add_row(table2,
                    "some libraries may not be located automatically",
                    "center")

            add_row(table2, "")

            add_row(table2, "  download pkg-config from:")
            add_row(table2,
                    "  http://www.freedesktop.org/wiki/Software/pkg-config/")

            add_row(table2, "")

            add_row(table2,
                    "  or specify which libraries are available " +
                    "in \"setup.cfg\"")

            row = table2.row()
            row.add_column("*")
            row.add_column("*" * 60)
            row.add_column("*")

            for row in table2.format():
                print(row)

        for row in table.format():
            print(row)
        print()


class audiotools_cdio(Extension):
    def __init__(self, system_libraries):
        """extra_link_args is a list of argument strings
        from pkg-config, or None if we're to use the standard
        libcdio libraries"""

        self.__library_manifest__ = []
        sources = []
        libraries = set()
        extra_compile_args = []
        extra_link_args = []

        if system_libraries.present("libcdio_paranoia"):
            if system_libraries.guaranteed_present("libcdio_paranoia"):
                libraries.update(set(["libcdio",
                                      "libcdio_cdda",
                                      "libcdio_paranoia"]))
                try:
                    paranoia_ver = tuple(int(s) for s in
                                         system_libraries.configfile.get(
                                         "Libraries",
                                         "libcdio_paranoia_version"))
                    if paranoia_ver < (0, 90):
                        paranoia_version = [("PARANOIA_LT_0_90", None)]
                    elif paranoia_va < (0, 93):
                        paranoia_version = [("PARANOIA_LT_0_93", None)]
                    else:
                        paranoia_version = []
                except (KeyError, ValueError):
                    paranoia_version = []
            else:
                extra_compile_args.extend(
                    system_libraries.extra_compile_args("libcdio_paranoia"))
                extra_link_args.extend(
                    system_libraries.extra_link_args("libcdio_paranoia"))

                try:
                    paranoia_ver = system_libraries.lib_version("libcdio")
                    if paranoia_ver < (0, 90):
                        paranoia_version = [("PARANOIA_LT_0_90", None)]
                    elif paranoia_ver < (0, 93):
                        paranoia_version = [("PARANOIA_LT_0_93", None)]
                    else:
                        paranoia_version = []
                except (KeyError, ValueError):
                    paranoia_version = []

            sources.extend(["src/cdiomodule.c",
                            "src/framelist.c",
                            "src/pcm_conv.c"])

            self.__library_manifest__.append(("libcdio",
                                              "CDDA data extraction",
                                              True))
        else:
            self.__library_manifest__.append(("libcdio",
                                              "CDDA data extraction",
                                              False))
            paranoia_version = []

        Extension.__init__(
            self,
            "audiotools.cdio",
            sources=sources,
            libraries=list(libraries),
            extra_compile_args=extra_compile_args,
            extra_link_args=extra_link_args,
            define_macros=paranoia_version)

    def library_manifest(self):
        for values in self.__library_manifest__:
            yield values

    def libraries_present(self):
        for (library, used_for, is_present) in self.library_manifest():
            if not is_present:
                return False
        else:
            return True


class audiotools_dvdaudio(Extension):
    def __init__(self, system_libraries):
        self.__library_manifest__ = []
        sources = []
        libraries = set()
        extra_compile_args = []
        extra_link_args = []

        if system_libraries.present("libdvd-audio"):
            if system_libraries.guaranteed_present("libdvd-audio"):
                libraries.update(set(["libdvd-audio"]))
            else:
                extra_compile_args.extend(
                    system_libraries.extra_compile_args("libdvd-audio"))
                extra_link_args.extend(
                    system_libraries.extra_link_args("libdvd-audio"))

            sources.extend(["src/dvdamodule.c",
                            "src/framelist.c",
                            "src/pcm_conv.c"])

            self.__library_manifest__.append(("libdvd-audio",
                                              "DVD-Audio data extraction",
                                              True))
        else:
            self.__library_manifest__.append(("libdvd-audio",
                                              "DVD-Audio data extraction",
                                              False))

        Extension.__init__(
            self,
            "audiotools.dvda",
            sources=sources,
            libraries=list(libraries),
            extra_compile_args=extra_compile_args,
            extra_link_args=extra_link_args)

    def library_manifest(self):
        for values in self.__library_manifest__:
            yield values

    def libraries_present(self):
        for (library, used_for, is_present) in self.library_manifest():
            if not is_present:
                return False
        else:
            return True


class audiotools_pcm(Extension):
    def __init__(self):
        Extension.__init__(self,
                           "audiotools.pcm",
                           sources=["src/pcm.c",
                                    "src/pcm_conv.c"],
                           define_macros=[("PCM_MODULE", None)])


class audiotools_pcmconverter(Extension):
    def __init__(self):
        Extension.__init__(self,
                           "audiotools.pcmconverter",
                           sources=["src/pcmconverter.c",
                                    "src/framelist.c",
                                    "src/pcmreader.c",
                                    "src/pcm_conv.c",
                                    "src/bitstream.c",
                                    "src/buffer.c",
                                    "src/func_io.c",
                                    "src/mini-gmp.c",
                                    "src/samplerate/samplerate.c",
                                    "src/samplerate/src_sinc.c",
                                    "src/samplerate/src_zoh.c",
                                    "src/samplerate/src_linear.c"],
                           define_macros=[("HAS_PYTHON", None)])


class audiotools_replaygain(Extension):
    def __init__(self):
        Extension.__init__(self,
                           "audiotools.replaygain",
                           sources=["src/replaygain.c",
                                    "src/framelist.c",
                                    "src/pcmreader.c",
                                    "src/bitstream.c",
                                    "src/buffer.c",
                                    "src/func_io.c",
                                    "src/mini-gmp.c"],
                           define_macros=[("HAS_PYTHON", None)])


class audiotools_decoders(Extension):
    def __init__(self, system_libraries):
        self.__library_manifest__ = []

        defines = [("VERSION", VERSION), ("HAS_PYTHON", None)]
        sources = ["src/pcm_conv.c",
                   "src/framelist.c",
                   "src/bitstream.c",
                   "src/buffer.c",
                   "src/func_io.c",
                   "src/mini-gmp.c",
                   "src/huffman.c",
                   "src/decoders/flac.c",
                   "src/ogg.c",
                   "src/ogg_crc.c",
                   "src/common/flac_crc.c",
                   "src/common/tta_crc.c",
                   "src/common/m4a_atoms.c",
                   "src/common/md5.c",
                   "src/mpc/mpc_crc32.c",
                   "src/libmpcdec/huffman.c",
                   "src/libmpcdec/mpc_bits_reader.c",
                   "src/libmpcdec/mpc_decoder.c",
                   "src/libmpcdec/mpc_demux.c",
                   "src/libmpcdec/mpc_reader.c",
                   "src/libmpcdec/requant.c",
                   "src/libmpcdec/streaminfo.c",
                   "src/libmpcdec/synth_filter.c",
                   "src/decoders/alac.c",
                   "src/decoders/tta.c",
                   "src/decoders/mpc.c",
                   "src/decoders/sine.c",
                   "src/decoders.c"]
        libraries = set()
        extra_link_args = []
        extra_compile_args = []

        if system_libraries.present("libmpg123"):
            if system_libraries.guaranteed_present("libmpg123"):
                libraries.add("mpg123")
            else:
                extra_compile_args.extend(
                    system_libraries.extra_compile_args("libmpg123"))
                extra_link_args.extend(
                    system_libraries.extra_link_args("libmpg123"))
            defines.append(("HAS_MP3", None))
            sources.append("src/decoders/mp3.c")
            self.__library_manifest__.append(("libmpg123",
                                              "MP3/MP2 decoding",
                                              True))
        else:
            self.__library_manifest__.append(("libmpg123",
                                              "MP3/MP2 decoding",
                                              False))

        if system_libraries.present("vorbisfile"):
            if system_libraries.guaranteed_present("vorbisfile"):
                libraries.update(set(["vorbisfile", "vorbis", "ogg"]))
            else:
                extra_compile_args.extend(
                    system_libraries.extra_compile_args("vorbisfile"))
                extra_link_args.extend(
                    system_libraries.extra_link_args("vorbisfile"))
            defines.append(("HAS_VORBIS", None))
            sources.append("src/decoders/vorbis.c")
            self.__library_manifest__.append(("vorbisfile",
                                              "Ogg Vorbis decoding",
                                              True))
        else:
            self.__library_manifest__.append(("vorbisfile",
                                              "Ogg Vorbis decoding",
                                              False))

        if system_libraries.present("opusfile"):
            if system_libraries.guaranteed_present("opusfile"):
                libraries.add("opusfile")
            else:
                extra_compile_args.extend(
                    system_libraries.extra_compile_args("opusfile"))
                extra_link_args.extend(
                    system_libraries.extra_link_args("opusfile"))
            defines.append(("HAS_OPUS", None))
            sources.append("src/decoders/opus.c")
            self.__library_manifest__.append(("opusfile",
                                              "Opus decoding",
                                              True))
        else:
            self.__library_manifest__.append(("opusfile",
                                              "Opus decoding",
                                              False))

        if system_libraries.present("wavpack"):
            if system_libraries.guaranteed_present("wavpack"):
                libraries.add("wavpack")
            else:
                extra_compile_args.extend(
                    system_libraries.extra_compile_args("wavpack"))
                extra_link_args.extend(
                    system_libraries.extra_link_args("wavpack"))
            defines.append(("HAS_WAVPACK", None))
            sources.append("src/decoders/wavpack.c")
            self.__library_manifest__.append(("wavpack",
                                              "Wavpack decoding",
                                              True))
        else:
            self.__library_manifest__.append(("wavpack",
                                              "Wavpack decoding",
                                              False))

        Extension.__init__(self,
                           "audiotools.decoders",
                           sources=sources,
                           define_macros=defines,
                           libraries=list(libraries),
                           extra_compile_args=extra_compile_args,
                           extra_link_args=extra_link_args)

    def library_manifest(self):
        for values in self.__library_manifest__:
            yield values


class audiotools_encoders(Extension):
    def __init__(self, system_libraries):
        self.__library_manifest__ = []
        defines = [("VERSION", VERSION), ("HAS_PYTHON", None)]
        sources = ["src/pcmreader.c",
                   "src/framelist.c",
                   "src/pcm_conv.c",
                   "src/bitstream.c",
                   "src/buffer.c",
                   "src/func_io.c",
                   "src/libmpcenc/analy_filter.c",
                   "src/libmpcenc/bitstream.c",
                   "src/libmpcenc/encode_sv7.c",
                   "src/libmpcenc/huffsv7.c",
                   "src/libmpcenc/quant.c",
                   "src/libmpcpsy/ans.c",
                   "src/libmpcpsy/cvd.c",
                   "src/libmpcpsy/fft4g.c",
                   "src/libmpcpsy/fft_routines.c",
                   "src/libmpcpsy/profile.c",
                   "src/libmpcpsy/psy.c",
                   "src/libmpcpsy/psy_tab.c",
                   "src/encoders/mpc.c",
                   "src/mpc/mpc_crc32.c",
                   "src/mini-gmp.c",
                   "src/common/md5.c",
                   "src/encoders/flac.c",
                   "src/common/flac_crc.c",
                   "src/common/tta_crc.c",
                   "src/encoders/alac.c",
                   "src/common/m4a_atoms.c",
                   "src/encoders/tta.c",
                   "src/encoders.c"]
        libraries = set()
        extra_link_args = []
        extra_compile_args = []

        # Since mp3lame doesn't show up in pkg-config,
        # assume it's present if the user guarantees it is
        # or if the lame executable is present.
        # This may fail if the user has installed the binary
        # with a lame-dev package of some kind.
        mp3lame_present = system_libraries.guaranteed_present("mp3lame")
        if mp3lame_present is None:
            mp3lame_present = system_libraries.executable_present(
                "lame", "--version")
        if mp3lame_present:
            libraries.add("mp3lame")
            defines.append(("HAS_MP3", None))
            sources.append("src/encoders/mp3.c")
            self.__library_manifest__.append(("mp3lame",
                                              "MP3 encoding",
                                              True))
        else:
            self.__library_manifest__.append(("mp3lame",
                                              "MP3 encoding",
                                              False))

        if system_libraries.present("twolame"):
            if system_libraries.guaranteed_present("twolame"):
                libraries.add("twolame")
            else:
                extra_compile_args.extend(
                    system_libraries.extra_compile_args("twolame"))
                extra_link_args.extend(
                    system_libraries.extra_link_args("twolame"))

            defines.append(("HAS_MP2", None))
            sources.append("src/encoders/mp2.c")
            self.__library_manifest__.append(("twolame",
                                              "MP2 encoding",
                                              True))
        else:
            self.__library_manifest__.append(("twolame",
                                              "MP2 encoding",
                                              False))

        if system_libraries.present("vorbisenc"):
            if system_libraries.guaranteed_present("vorbisenc"):
                libraries.update(set(["vorbisenc", "vorbis", "ogg"]))
            else:
                extra_compile_args.extend(
                    system_libraries.extra_compile_args("vorbisenc"))
                extra_link_args.extend(
                    system_libraries.extra_link_args("vorbisenc"))

            defines.append(("HAS_VORBIS", None))
            sources.append("src/encoders/vorbis.c")
            self.__library_manifest__.append(("vorbisenc",
                                              "Ogg Vorbis encoding",
                                              True))
        else:
            self.__library_manifest__.append(("vorbisenc",
                                              "Ogg Vorbis encoding",
                                              False))

        if system_libraries.present("opus"):
            if system_libraries.guaranteed_present("opus"):
                libraries.add("opus")
            else:
                extra_compile_args.extend(
                    system_libraries.extra_compile_args("opus"))
                extra_link_args.extend(
                    system_libraries.extra_link_args("opus"))
            defines.append(("HAS_OPUS", None))
            sources.append("src/encoders/opus.c")
            self.__library_manifest__.append(("opus",
                                              "Opus encoding",
                                              True))
        else:
            self.__library_manifest__.append(("opus",
                                              "Opus encoding",
                                              False))

        if system_libraries.present("wavpack"):
            if system_libraries.guaranteed_present("wavpack"):
                libraries.add("wavpack")
            else:
                extra_compile_args.extend(
                    system_libraries.extra_compile_args("wavpack"))
                extra_link_args.extend(
                    system_libraries.extra_link_args("wavpack"))
            defines.append(("HAS_WAVPACK", None))
            sources.append("src/encoders/wavpack.c")
            self.__library_manifest__.append(("wavpack",
                                              "Wavpack encoding",
                                              True))
        else:
            self.__library_manifest__.append(("wavpack",
                                              "Wavpack encoding",
                                              False))

        Extension.__init__(self,
                           "audiotools.encoders",
                           sources=sources,
                           define_macros=defines,
                           libraries=list(libraries),
                           extra_compile_args=extra_compile_args,
                           extra_link_args=extra_link_args)

    def library_manifest(self):
        for values in self.__library_manifest__:
            yield values


class audiotools_bitstream(Extension):
    def __init__(self):
        Extension.__init__(self,
                           "audiotools.bitstream",
                           sources=["src/mod_bitstream.c",
                                    "src/bitstream.c",
                                    "src/buffer.c",
                                    "src/func_io.c",
                                    "src/mini-gmp.c",
                                    "src/huffman.c"],
                           define_macros=[("HAS_PYTHON", None)])


class audiotools_ogg(Extension):
    def __init__(self):
        Extension.__init__(self,
                           "audiotools._ogg",
                           sources=["src/ogg.c",
                                    "src/ogg_crc.c",
                                    "src/mod_ogg.c",
                                    "src/bitstream.c",
                                    "src/func_io.c",
                                    "src/mini-gmp.c",
                                    "src/buffer.c"],
                           define_macros=[("HAS_PYTHON", None)])


class audiotools_accuraterip(Extension):
    def __init__(self):
        Extension.__init__(self,
                           "audiotools._accuraterip",
                           sources=["src/accuraterip.c"])


class audiotools_output(Extension):
    def __init__(self, system_libraries):
        self.__library_manifest__ = []

        sources = ["src/output.c"]
        defines = []
        libraries = set()
        extra_compile_args = []
        extra_link_args = []

        # assume MacOS X always has CoreAudio
        if sys.platform == "darwin":
            sources.append("src/output/core_audio.c")
            defines.append(("CORE_AUDIO", "1"))
            extra_link_args.extend(["-framework", "AudioToolbox",
                                    "-framework", "AudioUnit",
                                    "-framework", "CoreServices"])
            self.__library_manifest__.append(("CoreAudio",
                                              "Core Audio output",
                                              True))
        elif sys.platform.startswith("linux"):
            # only check for ALSA on Linux
            if system_libraries.present("alsa"):
                if system_libraries.guaranteed_present("alsa"):
                    libraries.add("asound")
                else:
                    extra_compile_args.extend(
                        system_libraries.extra_compile_args("alsa"))
                    extra_link_args.extend(
                        system_libraries.extra_link_args("alsa"))
                sources.append("src/output/alsa.c")
                sources.append("src/framelist.c")
                defines.append(("ALSA", "1"))
                self.__library_manifest__.append(("libasound2",
                                                  "ALSA output",
                                                  True))
            else:
                self.__library_manifest__.append(("libasound2",
                                                  "ALSA output",
                                                  False))

        if system_libraries.present("libpulse"):
            if system_libraries.guaranteed_present("libpulse"):
                libraries.add("pulse")
            else:
                extra_compile_args.extend(
                    system_libraries.extra_compile_args("libpulse"))
                extra_link_args.extend(
                    system_libraries.extra_link_args("libpulse"))
            sources.append("src/output/pulseaudio.c")
            # only include pcmconv once
            if "src/framelist.c" not in sources:
                sources.append("src/framelist.c")
            defines.append(("PULSEAUDIO", "1"))
            self.__library_manifest__.append(("libpulse",
                                              "PulseAudio output",
                                              True))
        else:
            self.__library_manifest__.append(("libpulse",
                                              "PulseAudio output",
                                              False))

        Extension.__init__(self,
                           "audiotools.output",
                           sources=sources,
                           define_macros=defines,
                           libraries=list(libraries),
                           extra_compile_args=extra_compile_args,
                           extra_link_args=extra_link_args)

    def library_manifest(self):
        for values in self.__library_manifest__:
            yield values


ext_audiotools_cdio = audiotools_cdio(system_libraries)

ext_audiotools_dvdaudio = audiotools_dvdaudio(system_libraries)

ext_modules = [audiotools_pcm(),
               audiotools_pcmconverter(),
               audiotools_replaygain(),
               audiotools_decoders(system_libraries),
               audiotools_encoders(system_libraries),
               audiotools_bitstream(),
               audiotools_ogg(),
               audiotools_accuraterip(),
               audiotools_output(system_libraries)]

scripts = ["audiotools-config",
           "coverbrowse",
           "coverdump",
           "covertag",
           "track2cdda",
           "track2track",
           "trackcat",
           "trackcmp",
           "trackinfo",
           "tracklength",
           "tracklint",
           "trackplay",
           "trackrename",
           "tracksplit",
           "tracktag",
           "trackverify"]

if ext_audiotools_cdio.libraries_present():
    ext_modules.append(ext_audiotools_cdio)
    scripts.extend(["cdda2track", "cddainfo", "cddaplay"])

if ext_audiotools_dvdaudio.libraries_present():
    ext_modules.append(ext_audiotools_dvdaudio)
    scripts.extend(["dvda2track", "dvdainfo"])

setup(name="audiotools",
      version=VERSION,
      author="Brian Langenberger",
      author_email="tuffy@users.sourceforge.net",
      url="http://audiotools.sourceforge.net",
      description="A collection of audio handling utilities",
      # long_description="""""",  #FIXME
      download_url="http://sourceforge.net/projects/audiotools/files/",
      classifiers=[
          "Development Status :: 5 - Production/Stable",
          "Environment :: Console",
          "Intended Audience :: Developers",
          "Intended Audience :: End Users/Desktop",
          "License :: OSI Approved :: " +
          "GNU General Public License v2 or later (GPLv2+)",
          "Operating System :: MacOS :: MacOS X",
          "Operating System :: POSIX",
          "Operating System :: POSIX :: Linux",
          "Programming Language :: C",
          "Programming Language :: Python :: 2.7",
          "Programming Language :: Python :: 3.3",
          "Programming Language :: Python :: 3.4",
          "Topic :: Multimedia :: Sound/Audio",
          "Topic :: Multimedia :: Sound/Audio :: CD Audio",
          "Topic :: Multimedia :: Sound/Audio :: CD Audio :: CD Playing",
          "Topic :: Multimedia :: Sound/Audio :: CD Audio :: CD Ripping",
          "Topic :: Multimedia :: Sound/Audio :: CD Audio :: CD Writing",
          "Topic :: Multimedia :: Sound/Audio :: Conversion",
          "Topic :: Multimedia :: Sound/Audio :: Players",
          "Topic :: Software Development :: Libraries :: Python Modules"],
      platforms=["POSIX", "Linux", "OS X"],
      license="GPLv2+",
      packages=["audiotools",
                "audiotools.cue",
                "audiotools.toc",
                "audiotools.ply"],
      ext_modules=ext_modules,
      cmdclass={"build_ext": build_ext},
      scripts=scripts)