I am having some trouble with ctcsound (using CsoundVST 6.08) - when I try to
run the code below I get this message:

  File "C:\Program Files\Csound6_x64\bin\ctcsound.py", line 813, in
performKsmps
    return libcsound.csoundPerformKsmps(self.cs)
WindowsError: exception: access violation reading 0xFFFFFFFFFFFFFFFF

Code:

import ctcsound
import ctypes

def foo(csound, channelName, channelValuePtr, channelTypePtr):
    name = ctcsound.pstring(channelName)
    valPtr = ctypes.cast(channelValuePtr, ctypes.POINTER(ctcsound.MYFLT))
    valPtr[0] = ctcsound.MYFLT(440.0)
    print("hello", name)

c = ctcsound.Csound()
c.setOption("-odac")
c.compileOrc("""
        sr=44100
        ksmps=32
        nchnls=2
        0dbfs=1
        instr 1
          kfreq invalue "freq"
          kenv linsegr 0, .05, 1, .05, 0
          aout vco2 kenv, kfreq
          outs aout, aout
        endin
        """)
c.setInputChannelCallback(foo)
c.readScore("i1 0 0.2 \n i1 1 2")
c.start()
while (c.performKsmps() == 0):
  pass
c.stop()

I wonder if there could be a bug, or am I doing something wrong?

Best regards,
Søren



--
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Did you try without adding the callback?

Victor Lazzarini
Dean of Arts, Celtic Studies, and Philosophy
Maynooth University
Ireland

> On 7 Oct 2016, at 21:13, sjakops  wrote:
> 
> I am having some trouble with ctcsound (using CsoundVST 6.08) - when I try to
> run the code below I get this message:
> 
>  File "C:\Program Files\Csound6_x64\bin\ctcsound.py", line 813, in
> performKsmps
>    return libcsound.csoundPerformKsmps(self.cs)
> WindowsError: exception: access violation reading 0xFFFFFFFFFFFFFFFF
> 
> Code:
> 
> import ctcsound
> import ctypes
> 
> def foo(csound, channelName, channelValuePtr, channelTypePtr):
>    name = ctcsound.pstring(channelName)
>    valPtr = ctypes.cast(channelValuePtr, ctypes.POINTER(ctcsound.MYFLT))
>    valPtr[0] = ctcsound.MYFLT(440.0)
>    print("hello", name)
> 
> c = ctcsound.Csound()
> c.setOption("-odac")
> c.compileOrc("""
>        sr=44100
>        ksmps=32
>        nchnls=2
>        0dbfs=1
>        instr 1
>          kfreq invalue "freq"
>          kenv linsegr 0, .05, 1, .05, 0
>          aout vco2 kenv, kfreq
>          outs aout, aout
>        endin
>        """)
> c.setInputChannelCallback(foo)
> c.readScore("i1 0 0.2 \n i1 1 2")
> c.start()
> while (c.performKsmps() == 0):
>  pass
> c.stop()
> 
> I wonder if there could be a bug, or am I doing something wrong?
> 
> Best regards,
> Søren
> 
> 
> 
> --
> View this message in context: http://csound.1045644.n5.nabble.com/ctcsound-Python-CsoundVST-6-08-Windows-x64-tp5751978.html
> Sent from the Csound - General mailing list archive at Nabble.com.
> 
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> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
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>        https://github.com/csound/csound/issues
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Yes, it works fine without the callback.
Søren

On 10/7/16, Victor Lazzarini  wrote:
> Did you try without adding the callback?
>
> Victor Lazzarini
> Dean of Arts, Celtic Studies, and Philosophy
> Maynooth University
> Ireland
>
>> On 7 Oct 2016, at 21:13, sjakops  wrote:
>>
>> I am having some trouble with ctcsound (using CsoundVST 6.08) - when I try
>> to
>> run the code below I get this message:
>>
>>  File "C:\Program Files\Csound6_x64\bin\ctcsound.py", line 813, in
>> performKsmps
>>    return libcsound.csoundPerformKsmps(self.cs)
>> WindowsError: exception: access violation reading 0xFFFFFFFFFFFFFFFF
>>
>> Code:
>>
>> import ctcsound
>> import ctypes
>>
>> def foo(csound, channelName, channelValuePtr, channelTypePtr):
>>    name = ctcsound.pstring(channelName)
>>    valPtr = ctypes.cast(channelValuePtr, ctypes.POINTER(ctcsound.MYFLT))
>>    valPtr[0] = ctcsound.MYFLT(440.0)
>>    print("hello", name)
>>
>> c = ctcsound.Csound()
>> c.setOption("-odac")
>> c.compileOrc("""
>>        sr=44100
>>        ksmps=32
>>        nchnls=2
>>        0dbfs=1
>>        instr 1
>>          kfreq invalue "freq"
>>          kenv linsegr 0, .05, 1, .05, 0
>>          aout vco2 kenv, kfreq
>>          outs aout, aout
>>        endin
>>        """)
>> c.setInputChannelCallback(foo)
>> c.readScore("i1 0 0.2 \n i1 1 2")
>> c.start()
>> while (c.performKsmps() == 0):
>>  pass
>> c.stop()
>>
>> I wonder if there could be a bug, or am I doing something wrong?
>>
>> Best regards,
>> Søren
>>
>>
>>
>> --
>> View this message in context:
>> http://csound.1045644.n5.nabble.com/ctcsound-Python-CsoundVST-6-08-Windows-x64-tp5751978.html
>> Sent from the Csound - General mailing list archive at Nabble.com.
>>
>> Csound mailing list
>> Csound@listserv.heanet.ie
>> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
>> Send bugs reports to
>>        https://github.com/csound/csound/issues
>> Discussions of bugs and features can be posted here
>
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> Discussions of bugs and features can be posted here
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I can confirm this on OSX. Setting the callback makes it segfault on performance.


Victor Lazzarini
Dean of Arts, Celtic Studies, and Philosophy
Maynooth University
Ireland

> On 8 Oct 2016, at 07:53, Søren Jakobsen  wrote:
> 
> Yes, it works fine without the callback.
> Søren
> 
>> On 10/7/16, Victor Lazzarini  wrote:
>> Did you try without adding the callback?
>> 
>> Victor Lazzarini
>> Dean of Arts, Celtic Studies, and Philosophy
>> Maynooth University
>> Ireland
>> 
>>> On 7 Oct 2016, at 21:13, sjakops  wrote:
>>> 
>>> I am having some trouble with ctcsound (using CsoundVST 6.08) - when I try
>>> to
>>> run the code below I get this message:
>>> 
>>> File "C:\Program Files\Csound6_x64\bin\ctcsound.py", line 813, in
>>> performKsmps
>>>   return libcsound.csoundPerformKsmps(self.cs)
>>> WindowsError: exception: access violation reading 0xFFFFFFFFFFFFFFFF
>>> 
>>> Code:
>>> 
>>> import ctcsound
>>> import ctypes
>>> 
>>> def foo(csound, channelName, channelValuePtr, channelTypePtr):
>>>   name = ctcsound.pstring(channelName)
>>>   valPtr = ctypes.cast(channelValuePtr, ctypes.POINTER(ctcsound.MYFLT))
>>>   valPtr[0] = ctcsound.MYFLT(440.0)
>>>   print("hello", name)
>>> 
>>> c = ctcsound.Csound()
>>> c.setOption("-odac")
>>> c.compileOrc("""
>>>       sr=44100
>>>       ksmps=32
>>>       nchnls=2
>>>       0dbfs=1
>>>       instr 1
>>>         kfreq invalue "freq"
>>>         kenv linsegr 0, .05, 1, .05, 0
>>>         aout vco2 kenv, kfreq
>>>         outs aout, aout
>>>       endin
>>>       """)
>>> c.setInputChannelCallback(foo)
>>> c.readScore("i1 0 0.2 \n i1 1 2")
>>> c.start()
>>> while (c.performKsmps() == 0):
>>> pass
>>> c.stop()
>>> 
>>> I wonder if there could be a bug, or am I doing something wrong?
>>> 
>>> Best regards,
>>> Søren
>>> 
>>> 
>>> 
>>> --
>>> View this message in context:
>>> http://csound.1045644.n5.nabble.com/ctcsound-Python-CsoundVST-6-08-Windows-x64-tp5751978.html
>>> Sent from the Csound - General mailing list archive at Nabble.com.
>>> 
>>> Csound mailing list
>>> Csound@listserv.heanet.ie
>>> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
>>> Send bugs reports to
>>>       https://github.com/csound/csound/issues
>>> Discussions of bugs and features can be posted here
>> 
>> Csound mailing list
>> Csound@listserv.heanet.ie
>> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
>> Send bugs reports to
>>        https://github.com/csound/csound/issues
>> Discussions of bugs and features can be posted here
>> 
> 
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> Csound@listserv.heanet.ie
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> Send bugs reports to
>        https://github.com/csound/csound/issues
> Discussions of bugs and features can be posted here

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I am running from the latest sources too. It’s puzzling that it does not work here
then. I tried using the debugger, but it fails on loading the csound library, so
I can’t use it.


> On 8 Oct 2016, at 10:03, Francois PINOT  wrote:
> 
> I just pulled again the sources and rebuilt Csound: it still works fine here.
> 
> François
> 
> 2016-10-08 10:43 GMT+02:00 Victor Lazzarini :
> I can confirm this on OSX. Setting the callback makes it segfault on performance.
> 
> 
> Victor Lazzarini
> Dean of Arts, Celtic Studies, and Philosophy
> Maynooth University
> Ireland
> 
> > On 8 Oct 2016, at 07:53, Søren Jakobsen  wrote:
> >
> > Yes, it works fine without the callback.
> > Søren
> >
> >> On 10/7/16, Victor Lazzarini  wrote:
> >> Did you try without adding the callback?
> >>
> >> Victor Lazzarini
> >> Dean of Arts, Celtic Studies, and Philosophy
> >> Maynooth University
> >> Ireland
> >>
> >>> On 7 Oct 2016, at 21:13, sjakops  wrote:
> >>>
> >>> I am having some trouble with ctcsound (using CsoundVST 6.08) - when I try
> >>> to
> >>> run the code below I get this message:
> >>>
> >>> File "C:\Program Files\Csound6_x64\bin\ctcsound.py", line 813, in
> >>> performKsmps
> >>>   return libcsound.csoundPerformKsmps(self.cs)
> >>> WindowsError: exception: access violation reading 0xFFFFFFFFFFFFFFFF
> >>>
> >>> Code:
> >>>
> >>> import ctcsound
> >>> import ctypes
> >>>
> >>> def foo(csound, channelName, channelValuePtr, channelTypePtr):
> >>>   name = ctcsound.pstring(channelName)
> >>>   valPtr = ctypes.cast(channelValuePtr, ctypes.POINTER(ctcsound.MYFLT))
> >>>   valPtr[0] = ctcsound.MYFLT(440.0)
> >>>   print("hello", name)
> >>>
> >>> c = ctcsound.Csound()
> >>> c.setOption("-odac")
> >>> c.compileOrc("""
> >>>       sr=44100
> >>>       ksmps=32
> >>>       nchnls=2
> >>>       0dbfs=1
> >>>       instr 1
> >>>         kfreq invalue "freq"
> >>>         kenv linsegr 0, .05, 1, .05, 0
> >>>         aout vco2 kenv, kfreq
> >>>         outs aout, aout
> >>>       endin
> >>>       """)
> >>> c.setInputChannelCallback(foo)
> >>> c.readScore("i1 0 0.2 \n i1 1 2")
> >>> c.start()
> >>> while (c.performKsmps() == 0):
> >>> pass
> >>> c.stop()
> >>>
> >>> I wonder if there could be a bug, or am I doing something wrong?
> >>>
> >>> Best regards,
> >>> Søren
> >>>
> >>>
> >>>
> >>> --
> >>> View this message in context:
> >>> http://csound.1045644.n5.nabble.com/ctcsound-Python-CsoundVST-6-08-Windows-x64-tp5751978.html
> >>> Sent from the Csound - General mailing list archive at Nabble.com.
> >>>
> >>> Csound mailing list
> >>> Csound@listserv.heanet.ie
> >>> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
> >>> Send bugs reports to
> >>>       https://github.com/csound/csound/issues
> >>> Discussions of bugs and features can be posted here
> >>
> >> Csound mailing list
> >> Csound@listserv.heanet.ie
> >> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
> >> Send bugs reports to
> >>        https://github.com/csound/csound/issues
> >> Discussions of bugs and features can be posted here
> >>
> >
> > Csound mailing list
> > Csound@listserv.heanet.ie
> > https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
> > Send bugs reports to
> >        https://github.com/csound/csound/issues
> > Discussions of bugs and features can be posted here
> 
> Csound mailing list
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> Send bugs reports to
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> Discussions of bugs and features can be posted here
> 
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If I comment out the first three line of foo (and leave a print
statement) I get the same error. I also tried replacing with the
latest ctcsound.py (am using the prebuilt CsoundVst) and I get this
message:

Traceback (most recent call last):
  File "d:\test.py", line 1, in 
    import ctcsound
  File "C:\Program Files\Csound6_x64\bin\ctcsound.py", line 230, in 
    libcsound.csoundGetOutputFormat.argtypes = [c_void_p, c_char_p, c_char_p]
  File "C:\Python27\lib\ctypes\__init__.py", line 375, in __getattr__
    func = self.__getitem__(name)
  File "C:\Python27\lib\ctypes\__init__.py", line 380, in __getitem__
    func = self._FuncPtr((name_or_ordinal, self))
AttributeError: function 'csoundGetOutputFormat' not found

On 10/8/16, Francois PINOT  wrote:
> Could you try it commenting out the first three lines in the foo function?
>
> François
>
> 2016-10-08 11:14 GMT+02:00 Victor Lazzarini :
>
>> I am running from the latest sources too. It’s puzzling that it does not
>> work here
>> then. I tried using the debugger, but it fails on loading the csound
>> library, so
>> I can’t use it.
>>
>>
>> > On 8 Oct 2016, at 10:03, Francois PINOT  wrote:
>> >
>> > I just pulled again the sources and rebuilt Csound: it still works fine
>> here.
>> >
>> > François
>> >
>> > 2016-10-08 10:43 GMT+02:00 Victor Lazzarini :
>> > I can confirm this on OSX. Setting the callback makes it segfault on
>> performance.
>> >
>> >
>> > Victor Lazzarini
>> > Dean of Arts, Celtic Studies, and Philosophy
>> > Maynooth University
>> > Ireland
>> >
>> > > On 8 Oct 2016, at 07:53, Søren Jakobsen  wrote:
>> > >
>> > > Yes, it works fine without the callback.
>> > > Søren
>> > >
>> > >> On 10/7/16, Victor Lazzarini  wrote:
>> > >> Did you try without adding the callback?
>> > >>
>> > >> Victor Lazzarini
>> > >> Dean of Arts, Celtic Studies, and Philosophy
>> > >> Maynooth University
>> > >> Ireland
>> > >>
>> > >>> On 7 Oct 2016, at 21:13, sjakops  wrote:
>> > >>>
>> > >>> I am having some trouble with ctcsound (using CsoundVST 6.08) -
>> > >>> when
>> I try
>> > >>> to
>> > >>> run the code below I get this message:
>> > >>>
>> > >>> File "C:\Program Files\Csound6_x64\bin\ctcsound.py", line 813, in
>> > >>> performKsmps
>> > >>>   return libcsound.csoundPerformKsmps(self.cs)
>> > >>> WindowsError: exception: access violation reading
>> > >>> 0xFFFFFFFFFFFFFFFF
>> > >>>
>> > >>> Code:
>> > >>>
>> > >>> import ctcsound
>> > >>> import ctypes
>> > >>>
>> > >>> def foo(csound, channelName, channelValuePtr, channelTypePtr):
>> > >>>   name = ctcsound.pstring(channelName)
>> > >>>   valPtr = ctypes.cast(channelValuePtr,
>> ctypes.POINTER(ctcsound.MYFLT))
>> > >>>   valPtr[0] = ctcsound.MYFLT(440.0)
>> > >>>   print("hello", name)
>> > >>>
>> > >>> c = ctcsound.Csound()
>> > >>> c.setOption("-odac")
>> > >>> c.compileOrc("""
>> > >>>       sr=44100
>> > >>>       ksmps=32
>> > >>>       nchnls=2
>> > >>>       0dbfs=1
>> > >>>       instr 1
>> > >>>         kfreq invalue "freq"
>> > >>>         kenv linsegr 0, .05, 1, .05, 0
>> > >>>         aout vco2 kenv, kfreq
>> > >>>         outs aout, aout
>> > >>>       endin
>> > >>>       """)
>> > >>> c.setInputChannelCallback(foo)
>> > >>> c.readScore("i1 0 0.2 \n i1 1 2")
>> > >>> c.start()
>> > >>> while (c.performKsmps() == 0):
>> > >>> pass
>> > >>> c.stop()
>> > >>>
>> > >>> I wonder if there could be a bug, or am I doing something wrong?
>> > >>>
>> > >>> Best regards,
>> > >>> Søren
>> > >>>
>> > >>>
>> > >>>
>> > >>> --
>> > >>> View this message in context:
>> > >>> http://csound.1045644.n5.nabble.com/ctcsound-Python-
>> CsoundVST-6-08-Windows-x64-tp5751978.html
>> > >>> Sent from the Csound - General mailing list archive at Nabble.com.
>> > >>>
>> > >>> Csound mailing list
>> > >>> Csound@listserv.heanet.ie
>> > >>> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
>> > >>> Send bugs reports to
>> > >>>       https://github.com/csound/csound/issues
>> > >>> Discussions of bugs and features can be posted here
>> > >>
>> > >> Csound mailing list
>> > >> Csound@listserv.heanet.ie
>> > >> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
>> > >> Send bugs reports to
>> > >>        https://github.com/csound/csound/issues
>> > >> Discussions of bugs and features can be posted here
>> > >>
>> > >
>> > > Csound mailing list
>> > > Csound@listserv.heanet.ie
>> > > https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
>> > > Send bugs reports to
>> > >        https://github.com/csound/csound/issues
>> > > Discussions of bugs and features can be posted here
>> >
>> > Csound mailing list
>> > Csound@listserv.heanet.ie
>> > https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
>> > Send bugs reports to
>> >         https://github.com/csound/csound/issues
>> > Discussions of bugs and features can be posted here
>> >
>> > Csound mailing list Csound@listserv.heanet.ie
>> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to
>> https://github.com/csound/csound/issues Discussions of bugs and features
>> can be posted here
>>
>>
>> Csound mailing list
>> Csound@listserv.heanet.ie
>> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
>> Send bugs reports to
>>         https://github.com/csound/csound/issues
>> Discussions of bugs and features can be posted here
>>
>
> Csound mailing list
> Csound@listserv.heanet.ie
> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
> Send bugs reports to
>         https://github.com/csound/csound/issues
> Discussions of bugs and features can be posted here
>

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Ok this means that you have to use the ctcsound.py shipped with the prebuilt Csound VST. Can you try your example commenting out the first and the fourth line of foo and leaving the second and third line uncommented?

François

2016-10-08 12:10 GMT+02:00 Søren Jakobsen <sorenkj@gmail.com>:

If I comment out the first three line of foo (and leave a print
statement) I get the same error. I also tried replacing with the
latest ctcsound.py (am using the prebuilt CsoundVst) and I get this
message:

Traceback (most recent call last):
  File "d:\test.py", line 1, in <module>
    import ctcsound
  File "C:\Program Files\Csound6_x64\bin\ctcsound.py", line 230, in <module>
    libcsound.csoundGetOutputFormat.argtypes = [c_void_p, c_char_p, c_char_p]
  File "C:\Python27\lib\ctypes\__init__.py", line 375, in __getattr__
    func = self.__getitem__(name)
  File "C:\Python27\lib\ctypes\__init__.py", line 380, in __getitem__
    func = self._FuncPtr((name_or_ordinal, self))
AttributeError: function 'csoundGetOutputFormat' not found

On 10/8/16, Francois PINOT <fggpinot@gmail.com> wrote:
> Could you try it commenting out the first three lines in the foo function?
>
> François
>
> 2016-10-08 11:14 GMT+02:00 Victor Lazzarini <Victor.Lazzarini@nuim.ie>:
>
>> I am running from the latest sources too. It’s puzzling that it does not
>> work here
>> then. I tried using the debugger, but it fails on loading the csound
>> library, so
>> I can’t use it.
>>
>>
>> > On 8 Oct 2016, at 10:03, Francois PINOT <fggpinot@GMAIL.COM> wrote:
>> >
>> > I just pulled again the sources and rebuilt Csound: it still works fine
>> here.
>> >
>> > François
>> >
>> > 2016-10-08 10:43 GMT+02:00 Victor Lazzarini <Victor.Lazzarini@nuim.ie>:
>> > I can confirm this on OSX. Setting the callback makes it segfault on
>> performance.
>> >
>> >
>> > Victor Lazzarini
>> > Dean of Arts, Celtic Studies, and Philosophy
>> > Maynooth University
>> > Ireland
>> >
>> > > On 8 Oct 2016, at 07:53, Søren Jakobsen <sorenkj@GMAIL.COM> wrote:
>> > >
>> > > Yes, it works fine without the callback.
>> > > Søren
>> > >
>> > >> On 10/7/16, Victor Lazzarini <Victor.Lazzarini@nuim.ie> wrote:
>> > >> Did you try without adding the callback?
>> > >>
>> > >> Victor Lazzarini
>> > >> Dean of Arts, Celtic Studies, and Philosophy
>> > >> Maynooth University
>> > >> Ireland
>> > >>
>> > >>> On 7 Oct 2016, at 21:13, sjakops <sorenkj@GMAIL.COM> wrote:
>> > >>>
>> > >>> I am having some trouble with ctcsound (using CsoundVST 6.08) -
>> > >>> when
>> I try
>> > >>> to
>> > >>> run the code below I get this message:
>> > >>>
>> > >>> File "C:\Program Files\Csound6_x64\bin\ctcsound.py", line 813, in
>> > >>> performKsmps
>> > >>>   return libcsound.csoundPerformKsmps(self.cs)
>> > >>> WindowsError: exception: access violation reading
>> > >>> 0xFFFFFFFFFFFFFFFF
>> > >>>
>> > >>> Code:
>> > >>>
>> > >>> import ctcsound
>> > >>> import ctypes
>> > >>>
>> > >>> def foo(csound, channelName, channelValuePtr, channelTypePtr):
>> > >>>   name = ctcsound.pstring(channelName)
>> > >>>   valPtr = ctypes.cast(channelValuePtr,
>> ctypes.POINTER(ctcsound.MYFLT))
>> > >>>   valPtr[0] = ctcsound.MYFLT(440.0)
>> > >>>   print("hello", name)
>> > >>>
>> > >>> c = ctcsound.Csound()
>> > >>> c.setOption("-odac")
>> > >>> c.compileOrc("""
>> > >>>       sr=44100
>> > >>>       ksmps=32
>> > >>>       nchnls=2
>> > >>>       0dbfs=1
>> > >>>       instr 1
>> > >>>         kfreq invalue "freq"
>> > >>>         kenv linsegr 0, .05, 1, .05, 0
>> > >>>         aout vco2 kenv, kfreq
>> > >>>         outs aout, aout
>> > >>>       endin
>> > >>>       """)
>> > >>> c.setInputChannelCallback(foo)
>> > >>> c.readScore("i1 0 0.2 \n i1 1 2")
>> > >>> c.start()
>> > >>> while (c.performKsmps() == 0):
>> > >>> pass
>> > >>> c.stop()
>> > >>>
>> > >>> I wonder if there could be a bug, or am I doing something wrong?
>> > >>>
>> > >>> Best regards,
>> > >>> Søren
>> > >>>
>> > >>>
>> > >>>
>> > >>> --
>> > >>> View this message in context:
>> > >>> http://csound.1045644.n5.nabble.com/ctcsound-Python-
>> CsoundVST-6-08-Windows-x64-tp5751978.html
>> > >>> Sent from the Csound - General mailing list archive at Nabble.com.
>> > >>>
>> > >>> Csound mailing list
>> > >>> Csound@listserv.heanet.ie
>> > >>> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
>> > >>> Send bugs reports to
>> > >>>       https://github.com/csound/csound/issues
>> > >>> Discussions of bugs and features can be posted here
>> > >>
>> > >> Csound mailing list
>> > >> Csound@listserv.heanet.ie
>> > >> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
>> > >> Send bugs reports to
>> > >>        https://github.com/csound/csound/issues
>> > >> Discussions of bugs and features can be posted here
>> > >>
>> > >
>> > > Csound mailing list
>> > > Csound@listserv.heanet.ie
>> > > https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
>> > > Send bugs reports to
>> > >        https://github.com/csound/csound/issues
>> > > Discussions of bugs and features can be posted here
>> >
>> > Csound mailing list
>> > Csound@listserv.heanet.ie
>> > https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
>> > Send bugs reports to
>> >         https://github.com/csound/csound/issues
>> > Discussions of bugs and features can be posted here
>> >
>> > Csound mailing list Csound@listserv.heanet.ie
>> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to
>> https://github.com/csound/csound/issues Discussions of bugs and features
>> can be posted here
>>
>>
>> Csound mailing list
>> Csound@listserv.heanet.ie
>> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
>> Send bugs reports to
>>         https://github.com/csound/csound/issues
>> Discussions of bugs and features can be posted here
>>
>
> Csound mailing list
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> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
> Send bugs reports to
>         https://github.com/csound/csound/issues
> Discussions of bugs and features can be posted here
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When commenting out only the first and fourth line of foo I still get
the same error (sometimes a different address is reported).

I wonder if it could also be an issue with my installation of numpy..
(to install numpy on my x64 I downloaded the zip from here
https://pypi.python.org/pypi/numpy and ran 'python setup.py install').

On 10/8/16, Francois PINOT  wrote:
> Ok this means that you have to use the ctcsound.py shipped with the
> prebuilt Csound VST. Can you try your example commenting out the first and
> the fourth line of foo and leaving the second and third line uncommented?
>
> François
>
> 2016-10-08 12:10 GMT+02:00 Søren Jakobsen :
>
>> If I comment out the first three line of foo (and leave a print
>> statement) I get the same error. I also tried replacing with the
>> latest ctcsound.py (am using the prebuilt CsoundVst) and I get this
>> message:
>>
>> Traceback (most recent call last):
>>   File "d:\test.py", line 1, in 
>>     import ctcsound
>>   File "C:\Program Files\Csound6_x64\bin\ctcsound.py", line 230, in
>> 
>>     libcsound.csoundGetOutputFormat.argtypes = [c_void_p, c_char_p,
>> c_char_p]
>>   File "C:\Python27\lib\ctypes\__init__.py", line 375, in __getattr__
>>     func = self.__getitem__(name)
>>   File "C:\Python27\lib\ctypes\__init__.py", line 380, in __getitem__
>>     func = self._FuncPtr((name_or_ordinal, self))
>> AttributeError: function 'csoundGetOutputFormat' not found
>>
>> On 10/8/16, Francois PINOT  wrote:
>> > Could you try it commenting out the first three lines in the foo
>> function?
>> >
>> > François
>> >
>> > 2016-10-08 11:14 GMT+02:00 Victor Lazzarini :
>> >
>> >> I am running from the latest sources too. It’s puzzling that it does
>> >> not
>> >> work here
>> >> then. I tried using the debugger, but it fails on loading the csound
>> >> library, so
>> >> I can’t use it.
>> >>
>> >>
>> >> > On 8 Oct 2016, at 10:03, Francois PINOT  wrote:
>> >> >
>> >> > I just pulled again the sources and rebuilt Csound: it still works
>> fine
>> >> here.
>> >> >
>> >> > François
>> >> >
>> >> > 2016-10-08 10:43 GMT+02:00 Victor Lazzarini
>> >> > > >:
>> >> > I can confirm this on OSX. Setting the callback makes it segfault on
>> >> performance.
>> >> >
>> >> >
>> >> > Victor Lazzarini
>> >> > Dean of Arts, Celtic Studies, and Philosophy
>> >> > Maynooth University
>> >> > Ireland
>> >> >
>> >> > > On 8 Oct 2016, at 07:53, Søren Jakobsen  wrote:
>> >> > >
>> >> > > Yes, it works fine without the callback.
>> >> > > Søren
>> >> > >
>> >> > >> On 10/7/16, Victor Lazzarini  wrote:
>> >> > >> Did you try without adding the callback?
>> >> > >>
>> >> > >> Victor Lazzarini
>> >> > >> Dean of Arts, Celtic Studies, and Philosophy
>> >> > >> Maynooth University
>> >> > >> Ireland
>> >> > >>
>> >> > >>> On 7 Oct 2016, at 21:13, sjakops  wrote:
>> >> > >>>
>> >> > >>> I am having some trouble with ctcsound (using CsoundVST 6.08) -
>> >> > >>> when
>> >> I try
>> >> > >>> to
>> >> > >>> run the code below I get this message:
>> >> > >>>
>> >> > >>> File "C:\Program Files\Csound6_x64\bin\ctcsound.py", line 813,
>> >> > >>> in
>> >> > >>> performKsmps
>> >> > >>>   return libcsound.csoundPerformKsmps(self.cs)
>> >> > >>> WindowsError: exception: access violation reading
>> >> > >>> 0xFFFFFFFFFFFFFFFF
>> >> > >>>
>> >> > >>> Code:
>> >> > >>>
>> >> > >>> import ctcsound
>> >> > >>> import ctypes
>> >> > >>>
>> >> > >>> def foo(csound, channelName, channelValuePtr, channelTypePtr):
>> >> > >>>   name = ctcsound.pstring(channelName)
>> >> > >>>   valPtr = ctypes.cast(channelValuePtr,
>> >> ctypes.POINTER(ctcsound.MYFLT))
>> >> > >>>   valPtr[0] = ctcsound.MYFLT(440.0)
>> >> > >>>   print("hello", name)
>> >> > >>>
>> >> > >>> c = ctcsound.Csound()
>> >> > >>> c.setOption("-odac")
>> >> > >>> c.compileOrc("""
>> >> > >>>       sr=44100
>> >> > >>>       ksmps=32
>> >> > >>>       nchnls=2
>> >> > >>>       0dbfs=1
>> >> > >>>       instr 1
>> >> > >>>         kfreq invalue "freq"
>> >> > >>>         kenv linsegr 0, .05, 1, .05, 0
>> >> > >>>         aout vco2 kenv, kfreq
>> >> > >>>         outs aout, aout
>> >> > >>>       endin
>> >> > >>>       """)
>> >> > >>> c.setInputChannelCallback(foo)
>> >> > >>> c.readScore("i1 0 0.2 \n i1 1 2")
>> >> > >>> c.start()
>> >> > >>> while (c.performKsmps() == 0):
>> >> > >>> pass
>> >> > >>> c.stop()
>> >> > >>>
>> >> > >>> I wonder if there could be a bug, or am I doing something wrong?
>> >> > >>>
>> >> > >>> Best regards,
>> >> > >>> Søren
>> >> > >>>
>> >> > >>>
>> >> > >>>
>> >> > >>> --
>> >> > >>> View this message in context:
>> >> > >>> http://csound.1045644.n5.nabble.com/ctcsound-Python-
>> >> CsoundVST-6-08-Windows-x64-tp5751978.html
>> >> > >>> Sent from the Csound - General mailing list archive at
>> >> > >>> Nabble.com.
>> >> > >>>
>> >> > >>> Csound mailing list
>> >> > >>> Csound@listserv.heanet.ie
>> >> > >>> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
>> >> > >>> Send bugs reports to
>> >> > >>>       https://github.com/csound/csound/issues
>> >> > >>> Discussions of bugs and features can be posted here
>> >> > >>
>> >> > >> Csound mailing list
>> >> > >> Csound@listserv.heanet.ie
>> >> > >> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
>> >> > >> Send bugs reports to
>> >> > >>        https://github.com/csound/csound/issues
>> >> > >> Discussions of bugs and features can be posted here
>> >> > >>
>> >> > >
>> >> > > Csound mailing list
>> >> > > Csound@listserv.heanet.ie
>> >> > > https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
>> >> > > Send bugs reports to
>> >> > >        https://github.com/csound/csound/issues
>> >> > > Discussions of bugs and features can be posted here
>> >> >
>> >> > Csound mailing list
>> >> > Csound@listserv.heanet.ie
>> >> > https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
>> >> > Send bugs reports to
>> >> >         https://github.com/csound/csound/issues
>> >> > Discussions of bugs and features can be posted here
>> >> >
>> >> > Csound mailing list Csound@listserv.heanet.ie
>> >> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to
>> >> https://github.com/csound/csound/issues Discussions of bugs and
>> features
>> >> can be posted here
>> >>
>> >>
>> >> Csound mailing list
>> >> Csound@listserv.heanet.ie
>> >> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
>> >> Send bugs reports to
>> >>         https://github.com/csound/csound/issues
>> >> Discussions of bugs and features can be posted here
>> >>
>> >
>> > Csound mailing list
>> > Csound@listserv.heanet.ie
>> > https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
>> > Send bugs reports to
>> >         https://github.com/csound/csound/issues
>> > Discussions of bugs and features can be posted here
>> >
>>
>> Csound mailing list
>> Csound@listserv.heanet.ie
>> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
>> Send bugs reports to
>>         https://github.com/csound/csound/issues
>> Discussions of bugs and features can be posted here
>>
>
> Csound mailing list
> Csound@listserv.heanet.ie
> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
> Send bugs reports to
>         https://github.com/csound/csound/issues
> Discussions of bugs and features can be posted here
>

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Try commenting out the whole thing and adding a pass statement. If the error is still
there, then it is the same as I a getting here

Victor Lazzarini
Dean of Arts, Celtic Studies, and Philosophy
Maynooth University
Ireland

> On 8 Oct 2016, at 11:29, Søren Jakobsen  wrote:
> 
> When commenting out only the first and fourth line of foo I still get
> the same error (sometimes a different address is reported).
> 
> I wonder if it could also be an issue with my installation of numpy..
> (to install numpy on my x64 I downloaded the zip from here
> https://pypi.python.org/pypi/numpy and ran 'python setup.py install').
> 
>> On 10/8/16, Francois PINOT  wrote:
>> Ok this means that you have to use the ctcsound.py shipped with the
>> prebuilt Csound VST. Can you try your example commenting out the first and
>> the fourth line of foo and leaving the second and third line uncommented?
>> 
>> François
>> 
>> 2016-10-08 12:10 GMT+02:00 Søren Jakobsen :
>> 
>>> If I comment out the first three line of foo (and leave a print
>>> statement) I get the same error. I also tried replacing with the
>>> latest ctcsound.py (am using the prebuilt CsoundVst) and I get this
>>> message:
>>> 
>>> Traceback (most recent call last):
>>>  File "d:\test.py", line 1, in 
>>>    import ctcsound
>>>  File "C:\Program Files\Csound6_x64\bin\ctcsound.py", line 230, in
>>> 
>>>    libcsound.csoundGetOutputFormat.argtypes = [c_void_p, c_char_p,
>>> c_char_p]
>>>  File "C:\Python27\lib\ctypes\__init__.py", line 375, in __getattr__
>>>    func = self.__getitem__(name)
>>>  File "C:\Python27\lib\ctypes\__init__.py", line 380, in __getitem__
>>>    func = self._FuncPtr((name_or_ordinal, self))
>>> AttributeError: function 'csoundGetOutputFormat' not found
>>> 
>>>> On 10/8/16, Francois PINOT  wrote:
>>>> Could you try it commenting out the first three lines in the foo
>>> function?
>>>> 
>>>> François
>>>> 
>>>> 2016-10-08 11:14 GMT+02:00 Victor Lazzarini :
>>>> 
>>>>> I am running from the latest sources too. It’s puzzling that it does
>>>>> not
>>>>> work here
>>>>> then. I tried using the debugger, but it fails on loading the csound
>>>>> library, so
>>>>> I can’t use it.
>>>>> 
>>>>> 
>>>>>> On 8 Oct 2016, at 10:03, Francois PINOT  wrote:
>>>>>> 
>>>>>> I just pulled again the sources and rebuilt Csound: it still works
>>> fine
>>>>> here.
>>>>>> 
>>>>>> François
>>>>>> 
>>>>>> 2016-10-08 10:43 GMT+02:00 Victor Lazzarini
>>>>>> >>> :
>>>>>> I can confirm this on OSX. Setting the callback makes it segfault on
>>>>> performance.
>>>>>> 
>>>>>> 
>>>>>> Victor Lazzarini
>>>>>> Dean of Arts, Celtic Studies, and Philosophy
>>>>>> Maynooth University
>>>>>> Ireland
>>>>>> 
>>>>>>> On 8 Oct 2016, at 07:53, Søren Jakobsen  wrote:
>>>>>>> 
>>>>>>> Yes, it works fine without the callback.
>>>>>>> Søren
>>>>>>> 
>>>>>>>> On 10/7/16, Victor Lazzarini  wrote:
>>>>>>>> Did you try without adding the callback?
>>>>>>>> 
>>>>>>>> Victor Lazzarini
>>>>>>>> Dean of Arts, Celtic Studies, and Philosophy
>>>>>>>> Maynooth University
>>>>>>>> Ireland
>>>>>>>> 
>>>>>>>>> On 7 Oct 2016, at 21:13, sjakops  wrote:
>>>>>>>>> 
>>>>>>>>> I am having some trouble with ctcsound (using CsoundVST 6.08) -
>>>>>>>>> when
>>>>> I try
>>>>>>>>> to
>>>>>>>>> run the code below I get this message:
>>>>>>>>> 
>>>>>>>>> File "C:\Program Files\Csound6_x64\bin\ctcsound.py", line 813,
>>>>>>>>> in
>>>>>>>>> performKsmps
>>>>>>>>>  return libcsound.csoundPerformKsmps(self.cs)
>>>>>>>>> WindowsError: exception: access violation reading
>>>>>>>>> 0xFFFFFFFFFFFFFFFF
>>>>>>>>> 
>>>>>>>>> Code:
>>>>>>>>> 
>>>>>>>>> import ctcsound
>>>>>>>>> import ctypes
>>>>>>>>> 
>>>>>>>>> def foo(csound, channelName, channelValuePtr, channelTypePtr):
>>>>>>>>>  name = ctcsound.pstring(channelName)
>>>>>>>>>  valPtr = ctypes.cast(channelValuePtr,
>>>>> ctypes.POINTER(ctcsound.MYFLT))
>>>>>>>>>  valPtr[0] = ctcsound.MYFLT(440.0)
>>>>>>>>>  print("hello", name)
>>>>>>>>> 
>>>>>>>>> c = ctcsound.Csound()
>>>>>>>>> c.setOption("-odac")
>>>>>>>>> c.compileOrc("""
>>>>>>>>>      sr=44100
>>>>>>>>>      ksmps=32
>>>>>>>>>      nchnls=2
>>>>>>>>>      0dbfs=1
>>>>>>>>>      instr 1
>>>>>>>>>        kfreq invalue "freq"
>>>>>>>>>        kenv linsegr 0, .05, 1, .05, 0
>>>>>>>>>        aout vco2 kenv, kfreq
>>>>>>>>>        outs aout, aout
>>>>>>>>>      endin
>>>>>>>>>      """)
>>>>>>>>> c.setInputChannelCallback(foo)
>>>>>>>>> c.readScore("i1 0 0.2 \n i1 1 2")
>>>>>>>>> c.start()
>>>>>>>>> while (c.performKsmps() == 0):
>>>>>>>>> pass
>>>>>>>>> c.stop()
>>>>>>>>> 
>>>>>>>>> I wonder if there could be a bug, or am I doing something wrong?
>>>>>>>>> 
>>>>>>>>> Best regards,
>>>>>>>>> Søren
>>>>>>>>> 
>>>>>>>>> 
>>>>>>>>> 
>>>>>>>>> --
>>>>>>>>> View this message in context:
>>>>>>>>> http://csound.1045644.n5.nabble.com/ctcsound-Python-
>>>>> CsoundVST-6-08-Windows-x64-tp5751978.html
>>>>>>>>> Sent from the Csound - General mailing list archive at
>>>>>>>>> Nabble.com.
>>>>>>>>> 
>>>>>>>>> Csound mailing list
>>>>>>>>> Csound@listserv.heanet.ie
>>>>>>>>> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
>>>>>>>>> Send bugs reports to
>>>>>>>>>      https://github.com/csound/csound/issues
>>>>>>>>> Discussions of bugs and features can be posted here
>>>>>>>> 
>>>>>>>> Csound mailing list
>>>>>>>> Csound@listserv.heanet.ie
>>>>>>>> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
>>>>>>>> Send bugs reports to
>>>>>>>>       https://github.com/csound/csound/issues
>>>>>>>> Discussions of bugs and features can be posted here
>>>>>>>> 
>>>>>>> 
>>>>>>> Csound mailing list
>>>>>>> Csound@listserv.heanet.ie
>>>>>>> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
>>>>>>> Send bugs reports to
>>>>>>>       https://github.com/csound/csound/issues
>>>>>>> Discussions of bugs and features can be posted here
>>>>>> 
>>>>>> Csound mailing list
>>>>>> Csound@listserv.heanet.ie
>>>>>> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
>>>>>> Send bugs reports to
>>>>>>        https://github.com/csound/csound/issues
>>>>>> Discussions of bugs and features can be posted here
>>>>>> 
>>>>>> Csound mailing list Csound@listserv.heanet.ie
>>>>> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to
>>>>> https://github.com/csound/csound/issues Discussions of bugs and
>>> features
>>>>> can be posted here
>>>>> 
>>>>> 
>>>>> Csound mailing list
>>>>> Csound@listserv.heanet.ie
>>>>> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
>>>>> Send bugs reports to
>>>>>        https://github.com/csound/csound/issues
>>>>> Discussions of bugs and features can be posted here
>>>>> 
>>>> 
>>>> Csound mailing list
>>>> Csound@listserv.heanet.ie
>>>> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
>>>> Send bugs reports to
>>>>        https://github.com/csound/csound/issues
>>>> Discussions of bugs and features can be posted here
>>>> 
>>> 
>>> Csound mailing list
>>> Csound@listserv.heanet.ie
>>> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
>>> Send bugs reports to
>>>        https://github.com/csound/csound/issues
>>> Discussions of bugs and features can be posted here
>>> 
>> 
>> Csound mailing list
>> Csound@listserv.heanet.ie
>> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
>> Send bugs reports to
>>        https://github.com/csound/csound/issues
>> Discussions of bugs and features can be posted here
>> 
> 
> Csound mailing list
> Csound@listserv.heanet.ie
> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
> Send bugs reports to
>        https://github.com/csound/csound/issues
> Discussions of bugs and features can be posted here

Csound mailing list
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yes, I commented everything out and added a ‘pass’. Same result.
> On 8 Oct 2016, at 10:32, Francois PINOT  wrote:
> 
> Could you try it commenting out the first three lines in the foo function?
> 
> François
> 
> 2016-10-08 11:14 GMT+02:00 Victor Lazzarini :
> I am running from the latest sources too. It’s puzzling that it does not work here
> then. I tried using the debugger, but it fails on loading the csound library, so
> I can’t use it.
> 
> 
> > On 8 Oct 2016, at 10:03, Francois PINOT  wrote:
> >
> > I just pulled again the sources and rebuilt Csound: it still works fine here.
> >
> > François
> >
> > 2016-10-08 10:43 GMT+02:00 Victor Lazzarini :
> > I can confirm this on OSX. Setting the callback makes it segfault on performance.
> >
> >
> > Victor Lazzarini
> > Dean of Arts, Celtic Studies, and Philosophy
> > Maynooth University
> > Ireland
> >
> > > On 8 Oct 2016, at 07:53, Søren Jakobsen  wrote:
> > >
> > > Yes, it works fine without the callback.
> > > Søren
> > >
> > >> On 10/7/16, Victor Lazzarini  wrote:
> > >> Did you try without adding the callback?
> > >>
> > >> Victor Lazzarini
> > >> Dean of Arts, Celtic Studies, and Philosophy
> > >> Maynooth University
> > >> Ireland
> > >>
> > >>> On 7 Oct 2016, at 21:13, sjakops  wrote:
> > >>>
> > >>> I am having some trouble with ctcsound (using CsoundVST 6.08) - when I try
> > >>> to
> > >>> run the code below I get this message:
> > >>>
> > >>> File "C:\Program Files\Csound6_x64\bin\ctcsound.py", line 813, in
> > >>> performKsmps
> > >>>   return libcsound.csoundPerformKsmps(self.cs)
> > >>> WindowsError: exception: access violation reading 0xFFFFFFFFFFFFFFFF
> > >>>
> > >>> Code:
> > >>>
> > >>> import ctcsound
> > >>> import ctypes
> > >>>
> > >>> def foo(csound, channelName, channelValuePtr, channelTypePtr):
> > >>>   name = ctcsound.pstring(channelName)
> > >>>   valPtr = ctypes.cast(channelValuePtr, ctypes.POINTER(ctcsound.MYFLT))
> > >>>   valPtr[0] = ctcsound.MYFLT(440.0)
> > >>>   print("hello", name)
> > >>>
> > >>> c = ctcsound.Csound()
> > >>> c.setOption("-odac")
> > >>> c.compileOrc("""
> > >>>       sr=44100
> > >>>       ksmps=32
> > >>>       nchnls=2
> > >>>       0dbfs=1
> > >>>       instr 1
> > >>>         kfreq invalue "freq"
> > >>>         kenv linsegr 0, .05, 1, .05, 0
> > >>>         aout vco2 kenv, kfreq
> > >>>         outs aout, aout
> > >>>       endin
> > >>>       """)
> > >>> c.setInputChannelCallback(foo)
> > >>> c.readScore("i1 0 0.2 \n i1 1 2")
> > >>> c.start()
> > >>> while (c.performKsmps() == 0):
> > >>> pass
> > >>> c.stop()
> > >>>
> > >>> I wonder if there could be a bug, or am I doing something wrong?
> > >>>
> > >>> Best regards,
> > >>> Søren
> > >>>
> > >>>
> > >>>
> > >>> --
> > >>> View this message in context:
> > >>> http://csound.1045644.n5.nabble.com/ctcsound-Python-CsoundVST-6-08-Windows-x64-tp5751978.html
> > >>> Sent from the Csound - General mailing list archive at Nabble.com.
> > >>>
> > >>> Csound mailing list
> > >>> Csound@listserv.heanet.ie
> > >>> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
> > >>> Send bugs reports to
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Yes, same error if I comment out everything and pass.
Søren

On 10/8/16, Victor Lazzarini  wrote:
> Try commenting out the whole thing and adding a pass statement. If the error
> is still
> there, then it is the same as I a getting here
>
> Victor Lazzarini
> Dean of Arts, Celtic Studies, and Philosophy
> Maynooth University
> Ireland
>
>> On 8 Oct 2016, at 11:29, Søren Jakobsen  wrote:
>>
>> When commenting out only the first and fourth line of foo I still get
>> the same error (sometimes a different address is reported).
>>
>> I wonder if it could also be an issue with my installation of numpy..
>> (to install numpy on my x64 I downloaded the zip from here
>> https://pypi.python.org/pypi/numpy and ran 'python setup.py install').
>>
>>> On 10/8/16, Francois PINOT  wrote:
>>> Ok this means that you have to use the ctcsound.py shipped with the
>>> prebuilt Csound VST. Can you try your example commenting out the first
>>> and
>>> the fourth line of foo and leaving the second and third line
>>> uncommented?
>>>
>>> François
>>>
>>> 2016-10-08 12:10 GMT+02:00 Søren Jakobsen :
>>>
>>>> If I comment out the first three line of foo (and leave a print
>>>> statement) I get the same error. I also tried replacing with the
>>>> latest ctcsound.py (am using the prebuilt CsoundVst) and I get this
>>>> message:
>>>>
>>>> Traceback (most recent call last):
>>>>  File "d:\test.py", line 1, in 
>>>>    import ctcsound
>>>>  File "C:\Program Files\Csound6_x64\bin\ctcsound.py", line 230, in
>>>> 
>>>>    libcsound.csoundGetOutputFormat.argtypes = [c_void_p, c_char_p,
>>>> c_char_p]
>>>>  File "C:\Python27\lib\ctypes\__init__.py", line 375, in __getattr__
>>>>    func = self.__getitem__(name)
>>>>  File "C:\Python27\lib\ctypes\__init__.py", line 380, in __getitem__
>>>>    func = self._FuncPtr((name_or_ordinal, self))
>>>> AttributeError: function 'csoundGetOutputFormat' not found
>>>>
>>>>> On 10/8/16, Francois PINOT  wrote:
>>>>> Could you try it commenting out the first three lines in the foo
>>>> function?
>>>>>
>>>>> François
>>>>>
>>>>> 2016-10-08 11:14 GMT+02:00 Victor Lazzarini
>>>>> :
>>>>>
>>>>>> I am running from the latest sources too. It’s puzzling that it does
>>>>>> not
>>>>>> work here
>>>>>> then. I tried using the debugger, but it fails on loading the csound
>>>>>> library, so
>>>>>> I can’t use it.
>>>>>>
>>>>>>
>>>>>>> On 8 Oct 2016, at 10:03, Francois PINOT  wrote:
>>>>>>>
>>>>>>> I just pulled again the sources and rebuilt Csound: it still works
>>>> fine
>>>>>> here.
>>>>>>>
>>>>>>> François
>>>>>>>
>>>>>>> 2016-10-08 10:43 GMT+02:00 Victor Lazzarini
>>>>>>> >>>> :
>>>>>>> I can confirm this on OSX. Setting the callback makes it segfault on
>>>>>> performance.
>>>>>>>
>>>>>>>
>>>>>>> Victor Lazzarini
>>>>>>> Dean of Arts, Celtic Studies, and Philosophy
>>>>>>> Maynooth University
>>>>>>> Ireland
>>>>>>>
>>>>>>>> On 8 Oct 2016, at 07:53, Søren Jakobsen  wrote:
>>>>>>>>
>>>>>>>> Yes, it works fine without the callback.
>>>>>>>> Søren
>>>>>>>>
>>>>>>>>> On 10/7/16, Victor Lazzarini  wrote:
>>>>>>>>> Did you try without adding the callback?
>>>>>>>>>
>>>>>>>>> Victor Lazzarini
>>>>>>>>> Dean of Arts, Celtic Studies, and Philosophy
>>>>>>>>> Maynooth University
>>>>>>>>> Ireland
>>>>>>>>>
>>>>>>>>>> On 7 Oct 2016, at 21:13, sjakops  wrote:
>>>>>>>>>>
>>>>>>>>>> I am having some trouble with ctcsound (using CsoundVST 6.08) -
>>>>>>>>>> when
>>>>>> I try
>>>>>>>>>> to
>>>>>>>>>> run the code below I get this message:
>>>>>>>>>>
>>>>>>>>>> File "C:\Program Files\Csound6_x64\bin\ctcsound.py", line 813,
>>>>>>>>>> in
>>>>>>>>>> performKsmps
>>>>>>>>>>  return libcsound.csoundPerformKsmps(self.cs)
>>>>>>>>>> WindowsError: exception: access violation reading
>>>>>>>>>> 0xFFFFFFFFFFFFFFFF
>>>>>>>>>>
>>>>>>>>>> Code:
>>>>>>>>>>
>>>>>>>>>> import ctcsound
>>>>>>>>>> import ctypes
>>>>>>>>>>
>>>>>>>>>> def foo(csound, channelName, channelValuePtr, channelTypePtr):
>>>>>>>>>>  name = ctcsound.pstring(channelName)
>>>>>>>>>>  valPtr = ctypes.cast(channelValuePtr,
>>>>>> ctypes.POINTER(ctcsound.MYFLT))
>>>>>>>>>>  valPtr[0] = ctcsound.MYFLT(440.0)
>>>>>>>>>>  print("hello", name)
>>>>>>>>>>
>>>>>>>>>> c = ctcsound.Csound()
>>>>>>>>>> c.setOption("-odac")
>>>>>>>>>> c.compileOrc("""
>>>>>>>>>>      sr=44100
>>>>>>>>>>      ksmps=32
>>>>>>>>>>      nchnls=2
>>>>>>>>>>      0dbfs=1
>>>>>>>>>>      instr 1
>>>>>>>>>>        kfreq invalue "freq"
>>>>>>>>>>        kenv linsegr 0, .05, 1, .05, 0
>>>>>>>>>>        aout vco2 kenv, kfreq
>>>>>>>>>>        outs aout, aout
>>>>>>>>>>      endin
>>>>>>>>>>      """)
>>>>>>>>>> c.setInputChannelCallback(foo)
>>>>>>>>>> c.readScore("i1 0 0.2 \n i1 1 2")
>>>>>>>>>> c.start()
>>>>>>>>>> while (c.performKsmps() == 0):
>>>>>>>>>> pass
>>>>>>>>>> c.stop()
>>>>>>>>>>
>>>>>>>>>> I wonder if there could be a bug, or am I doing something wrong?
>>>>>>>>>>
>>>>>>>>>> Best regards,
>>>>>>>>>> Søren
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> --
>>>>>>>>>> View this message in context:
>>>>>>>>>> http://csound.1045644.n5.nabble.com/ctcsound-Python-
>>>>>> CsoundVST-6-08-Windows-x64-tp5751978.html
>>>>>>>>>> Sent from the Csound - General mailing list archive at
>>>>>>>>>> Nabble.com.
>>>>>>>>>>
>>>>>>>>>> Csound mailing list
>>>>>>>>>> Csound@listserv.heanet.ie
>>>>>>>>>> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
>>>>>>>>>> Send bugs reports to
>>>>>>>>>>      https://github.com/csound/csound/issues
>>>>>>>>>> Discussions of bugs and features can be posted here
>>>>>>>>>
>>>>>>>>> Csound mailing list
>>>>>>>>> Csound@listserv.heanet.ie
>>>>>>>>> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
>>>>>>>>> Send bugs reports to
>>>>>>>>>       https://github.com/csound/csound/issues
>>>>>>>>> Discussions of bugs and features can be posted here
>>>>>>>>>
>>>>>>>>
>>>>>>>> Csound mailing list
>>>>>>>> Csound@listserv.heanet.ie
>>>>>>>> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
>>>>>>>> Send bugs reports to
>>>>>>>>       https://github.com/csound/csound/issues
>>>>>>>> Discussions of bugs and features can be posted here
>>>>>>>
>>>>>>> Csound mailing list
>>>>>>> Csound@listserv.heanet.ie
>>>>>>> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
>>>>>>> Send bugs reports to
>>>>>>>        https://github.com/csound/csound/issues
>>>>>>> Discussions of bugs and features can be posted here
>>>>>>>
>>>>>>> Csound mailing list Csound@listserv.heanet.ie
>>>>>> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to
>>>>>> https://github.com/csound/csound/issues Discussions of bugs and
>>>> features
>>>>>> can be posted here
>>>>>>
>>>>>>
>>>>>> Csound mailing list
>>>>>> Csound@listserv.heanet.ie
>>>>>> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
>>>>>> Send bugs reports to
>>>>>>        https://github.com/csound/csound/issues
>>>>>> Discussions of bugs and features can be posted here
>>>>>>
>>>>>
>>>>> Csound mailing list
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>>>>> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
>>>>> Send bugs reports to
>>>>>        https://github.com/csound/csound/issues
>>>>> Discussions of bugs and features can be posted here
>>>>>
>>>>
>>>> Csound mailing list
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>>>> Discussions of bugs and features can be posted here
>>>>
>>>
>>> Csound mailing list
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>>>
>>
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>
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Great, thanks a lot!
Søren

On 10/8/16, Francois PINOT  wrote:
> It is a garbage collector problem: ctypes doesn't keep references to
> CFUNCTYPE object and so the user has to make sure that its python code
> keeps a reference to the callback functions as long as they are used by the
> C code. It seems that the Python garbage collector is more aggressive on
> Windows and OSX than on Linux.
>
> I've committed the corrections on my github repo and in the Csound sources.
> Søren, if you want to use it with your prebuilt release of Csound you shoud
> comment out lines 230 and 977 in this new version of ctcsound.py, because
> the function outputFormat was added later.
>
> François
>
> 2016-10-08 20:13 GMT+02:00 Francois PINOT :
>
>> I think I got it. Victor, could you download ctcsound.py from my github
>> repo (https://raw.githubusercontent.com/fggp/ctcsound/master/ctcsound.py)
>> and retry to run Søren's example importing this version of ctcsound.py?
>>
>> François
>>
>> 2016-10-08 13:24 GMT+02:00 Victor Lazzarini :
>>
>>> yes, I commented everything out and added a ‘pass’. Same result.
>>> > On 8 Oct 2016, at 10:32, Francois PINOT  wrote:
>>> >
>>> > Could you try it commenting out the first three lines in the foo
>>> function?
>>> >
>>> > François
>>> >
>>> > 2016-10-08 11:14 GMT+02:00 Victor Lazzarini
>>> > :
>>> > I am running from the latest sources too. It’s puzzling that it does
>>> not work here
>>> > then. I tried using the debugger, but it fails on loading the csound
>>> library, so
>>> > I can’t use it.
>>> >
>>> >
>>> > > On 8 Oct 2016, at 10:03, Francois PINOT  wrote:
>>> > >
>>> > > I just pulled again the sources and rebuilt Csound: it still works
>>> fine here.
>>> > >
>>> > > François
>>> > >
>>> > > 2016-10-08 10:43 GMT+02:00 Victor Lazzarini
>>> > > >> >:
>>> > > I can confirm this on OSX. Setting the callback makes it segfault on
>>> performance.
>>> > >
>>> > >
>>> > > Victor Lazzarini
>>> > > Dean of Arts, Celtic Studies, and Philosophy
>>> > > Maynooth University
>>> > > Ireland
>>> > >
>>> > > > On 8 Oct 2016, at 07:53, Søren Jakobsen  wrote:
>>> > > >
>>> > > > Yes, it works fine without the callback.
>>> > > > Søren
>>> > > >
>>> > > >> On 10/7/16, Victor Lazzarini  wrote:
>>> > > >> Did you try without adding the callback?
>>> > > >>
>>> > > >> Victor Lazzarini
>>> > > >> Dean of Arts, Celtic Studies, and Philosophy
>>> > > >> Maynooth University
>>> > > >> Ireland
>>> > > >>
>>> > > >>> On 7 Oct 2016, at 21:13, sjakops  wrote:
>>> > > >>>
>>> > > >>> I am having some trouble with ctcsound (using CsoundVST 6.08) -
>>> when I try
>>> > > >>> to
>>> > > >>> run the code below I get this message:
>>> > > >>>
>>> > > >>> File "C:\Program Files\Csound6_x64\bin\ctcsound.py", line 813,
>>> > > >>> in
>>> > > >>> performKsmps
>>> > > >>>   return libcsound.csoundPerformKsmps(self.cs)
>>> > > >>> WindowsError: exception: access violation reading
>>> 0xFFFFFFFFFFFFFFFF
>>> > > >>>
>>> > > >>> Code:
>>> > > >>>
>>> > > >>> import ctcsound
>>> > > >>> import ctypes
>>> > > >>>
>>> > > >>> def foo(csound, channelName, channelValuePtr, channelTypePtr):
>>> > > >>>   name = ctcsound.pstring(channelName)
>>> > > >>>   valPtr = ctypes.cast(channelValuePtr,
>>> ctypes.POINTER(ctcsound.MYFLT))
>>> > > >>>   valPtr[0] = ctcsound.MYFLT(440.0)
>>> > > >>>   print("hello", name)
>>> > > >>>
>>> > > >>> c = ctcsound.Csound()
>>> > > >>> c.setOption("-odac")
>>> > > >>> c.compileOrc("""
>>> > > >>>       sr=44100
>>> > > >>>       ksmps=32
>>> > > >>>       nchnls=2
>>> > > >>>       0dbfs=1
>>> > > >>>       instr 1
>>> > > >>>         kfreq invalue "freq"
>>> > > >>>         kenv linsegr 0, .05, 1, .05, 0
>>> > > >>>         aout vco2 kenv, kfreq
>>> > > >>>         outs aout, aout
>>> > > >>>       endin
>>> > > >>>       """)
>>> > > >>> c.setInputChannelCallback(foo)
>>> > > >>> c.readScore("i1 0 0.2 \n i1 1 2")
>>> > > >>> c.start()
>>> > > >>> while (c.performKsmps() == 0):
>>> > > >>> pass
>>> > > >>> c.stop()
>>> > > >>>
>>> > > >>> I wonder if there could be a bug, or am I doing something wrong?
>>> > > >>>
>>> > > >>> Best regards,
>>> > > >>> Søren
>>> > > >>>
>>> > > >>>
>>> > > >>>
>>> > > >>> --
>>> > > >>> View this message in context:
>>> > > >>> http://csound.1045644.n5.nabble.com/ctcsound-Python-CsoundVS
>>> T-6-08-Windows-x64-tp5751978.html
>>> > > >>> Sent from the Csound - General mailing list archive at
>>> > > >>> Nabble.com.
>>> > > >>>
>>> > > >>> Csound mailing list
>>> > > >>> Csound@listserv.heanet.ie
>>> > > >>> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
>>> > > >>> Send bugs reports to
>>> > > >>>       https://github.com/csound/csound/issues
>>> > > >>> Discussions of bugs and features can be posted here
>>> > > >>
>>> > > >> Csound mailing list
>>> > > >> Csound@listserv.heanet.ie
>>> > > >> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
>>> > > >> Send bugs reports to
>>> > > >>        https://github.com/csound/csound/issues
>>> > > >> Discussions of bugs and features can be posted here
>>> > > >>
>>> > > >
>>> > > > Csound mailing list
>>> > > > Csound@listserv.heanet.ie
>>> > > > https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
>>> > > > Send bugs reports to
>>> > > >        https://github.com/csound/csound/issues
>>> > > > Discussions of bugs and features can be posted here
>>> > >
>>> > > Csound mailing list
>>> > > Csound@listserv.heanet.ie
>>> > > https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
>>> > > Send bugs reports to
>>> > >         https://github.com/csound/csound/issues
>>> > > Discussions of bugs and features can be posted here
>>> > >
>>> > > Csound mailing list Csound@listserv.heanet.ie
>>> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to
>>> https://github.com/csound/csound/issues Discussions of bugs and features
>>> can be posted here
>>> >
>>> >
>>> > Csound mailing list
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>>> >         https://github.com/csound/csound/issues
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>>> >
>>> > Csound mailing list Csound@listserv.heanet.ie
>>> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to
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>>>
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>>
>>
>
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