[Cs-dev] Fw: Csound API Question?

Date	2010-10-10 22:55
From	"Art Hunkins"
Subject	[Cs-dev] Fw: Csound API Question?
	Victor, I tried one further test: I copied a sound file, KayIntro.ogg, to the root directory of my Activity, and changed the appropriate line below to: cs.SetChannel("filename1", "KayIntro.ogg") I also tried: cs.SetChannel("filename1", KayIntro.ogg) The filename still didn't get through to chnget in Csound. Art Hunkins ----- Original Message ----- From: "Art Hunkins" To: "Developer discussions" Sent: Sunday, October 10, 2010 5:30 PM Subject: Re: [Cs-dev] Csound API Question? > Victor, > > With this change (at your suggestion): > def choose(self, widget): > chooser = ObjectChooser(self, what_filter=mime.GENERIC_TYPE_AUDIO) > result = chooser.run() > if result == gtk.RESPONSE_ACCEPT: > jobject = chooser.get_selected_object() > if jobject and jobject.file_path: > filename1 = jobject.file_path > print 'FileName = ', filename1 > cs.SetChannel("filename1", "abba") > > The "FileName =" line prints a correct (ogg) filename. Obviously the > correct filename/path has been located. > > In my Csound instrument: > Sname chnget "filename1" > puts Sname, 1 > > puts still prints a blank, and my program continues to treat the returned > string as "0". > > Meanwhile, there error messages have disappeared: >>> File "/usr/lib/python2.6/site-packages/csnd.py", line 1736, in >>> SetChannel >>> return _csnd.Csound_SetChannel(self, args) >>> NotImplementedError: Wrong number of arguments for overloaded function >>> 'Csound_SetChannel'. >>> Possible C/C++ prototypes are: >>> SetChannel(Csound ,char const ,double) >>> SetChannel(Csound ,char const ,char const ) > > Thanks again - > > Art Hunkins > > ----- Original Message ----- > From: "Victor Lazzarini" > To: "Art Hunkins" ; "Developer discussions" > > Sent: Sunday, October 10, 2010 5:08 AM > Subject: Re: [Cs-dev] Csound API Question? > > >>I think this means that one of the arguments is of the wrong type, >> which means. >> jobject.file_path. This line in your printed messages >> >> FileName = >> >> seems to indicate that it is not a string and the line >> >> print 'FileName = ', filename1 >> >> is not printing it. >> >> Try, just to test it, placing a string (any) instead of that argument >> and see if you get >> a result. >> >> Victor >> >>> File "/usr/lib/python2.6/site-packages/csnd.py", line 1736, in >>> SetChannel >>> return _csnd.Csound_SetChannel(self, args) >>> NotImplementedError: Wrong number of arguments for overloaded function >>> 'Csound_SetChannel'. >>> Possible C/C++ prototypes are: >>> SetChannel(Csound ,char const ,double) >>> SetChannel(Csound ,char const ,char const ) >>> >>> I feel I've taken a step backwards. At the same time, I'm very >>> grateful for >>> your enlightenment (or for that of any other more technically astute >>> Csounder than I). >>> >>> (I wonder if the filename is of the wrong type or some such, needing >>> a cast >>> of some sort?) >>> >>> Ever appreciative - >>> >>> Art Hunkins >>> >>> ----- Original Message ----- >>> From: "Victor Lazzarini" >>> To: "Developer discussions" >>> Sent: Friday, October 08, 2010 7:15 PM >>> Subject: Re: [Cs-dev] Csound API Question? >>> >>> >>>> For instance the following Python code: >>>> >>>> import csnd >>>> cs = csnd.Csound() >>>> cs.Compile("string.csd", "-n") >>>> cs.SetChannel("filename1", "haha") >>>> cs.Perform() >>>> >>>> ============ string.csd: ========= >>>> >>>> >>>> >>>> instr 1 >>>> Sname chnget "filename1" >>>> puts Sname, 1 >>>> endin >>>> >>>> >>>> i1 0 1 >>>> >>>> >>>> >>>> ============= interactive run ======= >>>> Python 2.6.4 (r264:75821M, Oct 27 2009, 19:48:32) >>>> [GCC 4.0.1 (Apple Inc. build 5493)] on darwin >>>> Type "help", "copyright", "credits" or "license" for more >>>> information. >>>>>>> import csnd >>>>>>> cs = csnd.Csound() >>>>>>> cs.Compile("string.csd", "-n") >>>> PortMIDI real time MIDI plugin for Csound >>>> PortAudio real-time audio module for Csound >>>> virtual_keyboard real time MIDI plugin for Csound >>>> 0dBFS level = 32768.0 >>>> Csound version 5.12 (double samples) Jun 9 2010 >>>> libsndfile-1.0.21 >>>> UnifiedCSD: string.csd >>>> STARTING FILE >>>> Creating options >>>> Creating orchestra >>>> Creating score >>>> orchname: /var/folders/5P/5PSrqM3mGnCIxRlBhio0cE+++TM/-Tmp-//csound- >>>> gtttlC.orc >>>> scorename: /var/folders/5P/5PSrqM3mGnCIxRlBhio0cE+++TM/-Tmp-//csound- >>>> hz4vNl.sco >>>> rtaudio: PortAudio module enabled ... using callback interface >>>> rtmidi: PortMIDI module enabled >>>> orch compiler: >>>> instr 1 >>>> Elapsed time at end of orchestra compile: real: 0.070s, CPU: 0.004s >>>> sorting score ... >>>> ... done >>>> Elapsed time at end of score sort: real: 0.152s, CPU: 0.023s >>>> Csound version 5.12 (double samples) Jun 9 2010 >>>> 0dBFS level = 32768.0 >>>> orch now loaded >>>> audio buffered in 1024 sample-frame blocks >>>> not writing to sound disk >>>> SECTION 1: >>>> 0 >>>>>>> cs.SetChannel("filename1", "haha") >>>>>>> cs.Perform() >>>> new alloc for instr 1: >>>> haha >>>> B 0.000 ..100.000 T100.000 TT100.000 M: 0.0 >>>> Score finished in csoundPerform(). >>>> 2 >>>>>>> exit() >>>> inactive allocs returned to freespace >>>> end of score. overall amps: 0.0 >>>> overall samples out of range: 0 >>>> 0 errors in performance >>>> Elapsed time at end of performance: real: 61.690s, CPU: 0.362s >>>> no sound written to disk >>>> >>>> ================== >>>> NB: there is nothing wrong with the API. >>>> >>>> Victor >>>> >>>> On 9 Oct 2010, at 00:05, Victor Lazzarini wrote: >>>> >>>>> Where is the call to pass the filename to Csound? >>>>> >>>>> Victor >>>>> >>>>> On 8 Oct 2010, at 22:12, Art Hunkins wrote: >>>>> >>>>>> At least I think it's an API/communication problem, rather than a >>>>>> Python/pygtk problem. >>>>>> >>>>>> Here's the situation: I'm getting users to click on a Journal entry >>>>>> in Sugar >>>>>> (python 2.6 - Sugar 0.84, FWIW), to identify a user-supplied >>>>>> soundfile to >>>>>> load into diskin2. It's close to working. >>>>>> >>>>>> The Python side: >>>>>> This statement is in the main loop: >>>>>> self.filename1 = "0" (or "" - they both work the same) >>>>>> >>>>>> In the method in question, the Journal selection process seems to >>>>>> be >>>>>> working; the code ends with: >>>>>> self.filename1 = jobject.file_path >>>>>> print 'FileName = ', self.filename1 >>>>>> return self.filename1 >>>>>> >>>>>> Through the print line, things seem to work; the following line is >>>>>> printed >>>>>> (in the log), with data (filename/path) one would expect: >>>>>> FileName = >>>>>> /home/liveuser/.sugar/default/data/9b3f3023-58f1-44ad-87c3- >>>>>> c19d2a7561ae.ogg >>>>>> >>>>>> (BTW, this is Csound 5.10 with a recent libsndfile that accepts Ogg >>>>>> Vorbis >>>>>> files - of which the above is one.) >>>>>> >>>>>> At this point the filename does not appear to transfer via the >>>>>> API to >>>>>> Csound. The Csound side (within an instrument definition): >>>>>> Sname chnget "filename1" >>>>>> puts Sname, 1 >>>>>> i1 strcmp Sname, "0" >>>>>> if i1 == 0 goto cont2 >>>>>> Sname = "soundin.1" >>>>>> goto cont2 >>>>>> >>>>>> Problem result: >>>>>> 1) puts prints a blank line. >>>>>> 2) strcmp evaluates to "0", which is the "no file name to >>>>>> communicate" >>>>>> value. >>>>>> 3) as a result, the default file, soundin1, is substituted. Here >>>>>> there is >>>>>> always a substitution. >>>>>> >>>>>> Bottom line: the (very long/complicated) filename seems not to be >>>>>> passed. >>>>>> Does anyone know why? (IOW, what am I doing wrong?) >>>>>> >>>>>> TIA for insight - >>>>>> >>>>>> Art Hunkins >>>>>> >>>>>> >>>>>> ------------------------------------------------------------------------------ >>>>>> Beautiful is writing same markup. Internet Explorer 9 supports >>>>>> standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. >>>>>> Spend less time writing and rewriting code and more time creating >>>>>> great >>>>>> experiences on the web. Be a part of the beta today. >>>>>> http://p.sf.net/sfu/beautyoftheweb >>>>>> _______________________________________________ >>>>>> Csound-devel mailing list >>>>>> Csound-devel@lists.sourceforge.net >>>>>> https://lists.sourceforge.net/lists/listinfo/csound-devel >>>>> >>>>> >>>>> ------------------------------------------------------------------------------ >>>>> Beautiful is writing same markup. Internet Explorer 9 supports >>>>> standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. >>>>> Spend less time writing and rewriting code and more time creating >>>>> great >>>>> experiences on the web. Be a part of the beta today. >>>>> http://p.sf.net/sfu/beautyoftheweb >>>>> _______________________________________________ >>>>> Csound-devel mailing list >>>>> Csound-devel@lists.sourceforge.net >>>>> https://lists.sourceforge.net/lists/listinfo/csound-devel >>>> >>>> >>>> ------------------------------------------------------------------------------ >>>> Beautiful is writing same markup. Internet Explorer 9 supports >>>> standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. >>>> Spend less time writing and rewriting code and more time creating >>>> great >>>> experiences on the web. Be a part of the beta today. >>>> http://p.sf.net/sfu/beautyoftheweb >>>> _______________________________________________ >>>> Csound-devel mailing list >>>> Csound-devel@lists.sourceforge.net >>>> https://lists.sourceforge.net/lists/listinfo/csound-devel >>> >>> >>> ------------------------------------------------------------------------------ >>> Beautiful is writing same markup. Internet Explorer 9 supports >>> standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. >>> Spend less time writing and rewriting code and more time creating >>> great >>> experiences on the web. Be a part of the beta today. >>> http://p.sf.net/sfu/beautyoftheweb >>> _______________________________________________ >>> Csound-devel mailing list >>> Csound-devel@lists.sourceforge.net >>> https://lists.sourceforge.net/lists/listinfo/csound-devel >> >> >> ------------------------------------------------------------------------------ >> Beautiful is writing same markup. Internet Explorer 9 supports >> standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. >> Spend less time writing and rewriting code and more time creating great >> experiences on the web. Be a part of the beta today. >> http://p.sf.net/sfu/beautyoftheweb >> _______________________________________________ >> Csound-devel mailing list >> Csound-devel@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/csound-devel > ------------------------------------------------------------------------------ Beautiful is writing same markup. Internet Explorer 9 supports standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. Spend less time writing and rewriting code and more time creating great experiences on the web. Be a part of the beta today. http://p.sf.net/sfu/beautyoftheweb _______________________________________________ Csound-devel mailing list Csound-devel@lists.sourceforge.net

Date	2010-10-11 08:16
From	Oeyvind Brandtsegg
Subject	Re: [Cs-dev] Fw: Csound API Question?
	I think there is something wrong with string chn channels, so that you're unable to set the value of a string chn channel from the API. Oeyvind 2010/10/10 Art Hunkins : > Victor, > > I tried one further test: > > I copied a sound file, KayIntro.ogg, to the root directory of my Activity, > and changed the appropriate line below to: > cs.SetChannel("filename1", "KayIntro.ogg") > I also tried: > cs.SetChannel("filename1", KayIntro.ogg) > > The filename still didn't get through to chnget in Csound. > > Art Hunkins > > ----- Original Message ----- > From: "Art Hunkins" > To: "Developer discussions" > Sent: Sunday, October 10, 2010 5:30 PM > Subject: Re: [Cs-dev] Csound API Question? > > >> Victor, >> >> With this change (at your suggestion): >> def choose(self, widget): >> chooser = ObjectChooser(self, what_filter=mime.GENERIC_TYPE_AUDIO) >> result = chooser.run() >> if result == gtk.RESPONSE_ACCEPT: >> jobject = chooser.get_selected_object() >> if jobject and jobject.file_path: >> filename1 = jobject.file_path >> print 'FileName = ', filename1 >> cs.SetChannel("filename1", "abba") >> >> The "FileName =" line prints a correct (ogg) filename. Obviously the >> correct filename/path has been located. >> >> In my Csound instrument: >> Sname chnget "filename1" >> puts Sname, 1 >> >> puts still prints a blank, and my program continues to treat the returned >> string as "0". >> >> Meanwhile, there error messages have disappeared: >>>> File "/usr/lib/python2.6/site-packages/csnd.py", line 1736, in >>>> SetChannel >>>> return _csnd.Csound_SetChannel(self, args) >>>> NotImplementedError: Wrong number of arguments for overloaded function >>>> 'Csound_SetChannel'. >>>> Possible C/C++ prototypes are: >>>> SetChannel(Csound ,char const ,double) >>>> SetChannel(Csound ,char const ,char const ) >> >> Thanks again - >> >> Art Hunkins >> >> ----- Original Message ----- >> From: "Victor Lazzarini" >> To: "Art Hunkins" ; "Developer discussions" >> >> Sent: Sunday, October 10, 2010 5:08 AM >> Subject: Re: [Cs-dev] Csound API Question? >> >> >>>I think this means that one of the arguments is of the wrong type, >>> which means. >>> jobject.file_path. This line in your printed messages >>> >>> FileName = >>> >>> seems to indicate that it is not a string and the line >>> >>> print 'FileName = ', filename1 >>> >>> is not printing it. >>> >>> Try, just to test it, placing a string (any) instead of that argument >>> and see if you get >>> a result. >>> >>> Victor >>> >>>> File "/usr/lib/python2.6/site-packages/csnd.py", line 1736, in >>>> SetChannel >>>> return _csnd.Csound_SetChannel(self, args) >>>> NotImplementedError: Wrong number of arguments for overloaded function >>>> 'Csound_SetChannel'. >>>> Possible C/C++ prototypes are: >>>> SetChannel(Csound ,char const ,double) >>>> SetChannel(Csound ,char const ,char const ) >>>> >>>> I feel I've taken a step backwards. At the same time, I'm very >>>> grateful for >>>> your enlightenment (or for that of any other more technically astute >>>> Csounder than I). >>>> >>>> (I wonder if the filename is of the wrong type or some such, needing >>>> a cast >>>> of some sort?) >>>> >>>> Ever appreciative - >>>> >>>> Art Hunkins >>>> >>>> ----- Original Message ----- >>>> From: "Victor Lazzarini" >>>> To: "Developer discussions" >>>> Sent: Friday, October 08, 2010 7:15 PM >>>> Subject: Re: [Cs-dev] Csound API Question? >>>> >>>> >>>>> For instance the following Python code: >>>>> >>>>> import csnd >>>>> cs = csnd.Csound() >>>>> cs.Compile("string.csd", "-n") >>>>> cs.SetChannel("filename1", "haha") >>>>> cs.Perform() >>>>> >>>>> ============ string.csd: ========= >>>>> >>>>> >>>>> >>>>> instr 1 >>>>> Sname chnget "filename1" >>>>> puts Sname, 1 >>>>> endin >>>>> >>>>> >>>>> i1 0 1 >>>>> >>>>> >>>>> >>>>> ============= interactive run ======= >>>>> Python 2.6.4 (r264:75821M, Oct 27 2009, 19:48:32) >>>>> [GCC 4.0.1 (Apple Inc. build 5493)] on darwin >>>>> Type "help", "copyright", "credits" or "license" for more >>>>> information. >>>>>>>> import csnd >>>>>>>> cs = csnd.Csound() >>>>>>>> cs.Compile("string.csd", "-n") >>>>> PortMIDI real time MIDI plugin for Csound >>>>> PortAudio real-time audio module for Csound >>>>> virtual_keyboard real time MIDI plugin for Csound >>>>> 0dBFS level = 32768.0 >>>>> Csound version 5.12 (double samples) Jun 9 2010 >>>>> libsndfile-1.0.21 >>>>> UnifiedCSD: string.csd >>>>> STARTING FILE >>>>> Creating options >>>>> Creating orchestra >>>>> Creating score >>>>> orchname: /var/folders/5P/5PSrqM3mGnCIxRlBhio0cE+++TM/-Tmp-//csound- >>>>> gtttlC.orc >>>>> scorename: /var/folders/5P/5PSrqM3mGnCIxRlBhio0cE+++TM/-Tmp-//csound- >>>>> hz4vNl.sco >>>>> rtaudio: PortAudio module enabled ... using callback interface >>>>> rtmidi: PortMIDI module enabled >>>>> orch compiler: >>>>> instr 1 >>>>> Elapsed time at end of orchestra compile: real: 0.070s, CPU: 0.004s >>>>> sorting score ... >>>>> ... done >>>>> Elapsed time at end of score sort: real: 0.152s, CPU: 0.023s >>>>> Csound version 5.12 (double samples) Jun 9 2010 >>>>> 0dBFS level = 32768.0 >>>>> orch now loaded >>>>> audio buffered in 1024 sample-frame blocks >>>>> not writing to sound disk >>>>> SECTION 1: >>>>> 0 >>>>>>>> cs.SetChannel("filename1", "haha") >>>>>>>> cs.Perform() >>>>> new alloc for instr 1: >>>>> haha >>>>> B 0.000 ..100.000 T100.000 TT100.000 M: 0.0 >>>>> Score finished in csoundPerform(). >>>>> 2 >>>>>>>> exit() >>>>> inactive allocs returned to freespace >>>>> end of score. overall amps: 0.0 >>>>> overall samples out of range: 0 >>>>> 0 errors in performance >>>>> Elapsed time at end of performance: real: 61.690s, CPU: 0.362s >>>>> no sound written to disk >>>>> >>>>> ================== >>>>> NB: there is nothing wrong with the API. >>>>> >>>>> Victor >>>>> >>>>> On 9 Oct 2010, at 00:05, Victor Lazzarini wrote: >>>>> >>>>>> Where is the call to pass the filename to Csound? >>>>>> >>>>>> Victor >>>>>> >>>>>> On 8 Oct 2010, at 22:12, Art Hunkins wrote: >>>>>> >>>>>>> At least I think it's an API/communication problem, rather than a >>>>>>> Python/pygtk problem. >>>>>>> >>>>>>> Here's the situation: I'm getting users to click on a Journal entry >>>>>>> in Sugar >>>>>>> (python 2.6 - Sugar 0.84, FWIW), to identify a user-supplied >>>>>>> soundfile to >>>>>>> load into diskin2. It's close to working. >>>>>>> >>>>>>> The Python side: >>>>>>> This statement is in the main loop: >>>>>>> self.filename1 = "0" (or "" - they both work the same) >>>>>>> >>>>>>> In the method in question, the Journal selection process seems to >>>>>>> be >>>>>>> working; the code ends with: >>>>>>> self.filename1 = jobject.file_path >>>>>>> print 'FileName = ', self.filename1 >>>>>>> return self.filename1 >>>>>>> >>>>>>> Through the print line, things seem to work; the following line is >>>>>>> printed >>>>>>> (in the log), with data (filename/path) one would expect: >>>>>>> FileName = >>>>>>> /home/liveuser/.sugar/default/data/9b3f3023-58f1-44ad-87c3- >>>>>>> c19d2a7561ae.ogg >>>>>>> >>>>>>> (BTW, this is Csound 5.10 with a recent libsndfile that accepts Ogg >>>>>>> Vorbis >>>>>>> files - of which the above is one.) >>>>>>> >>>>>>> At this point the filename does not appear to transfer via the >>>>>>> API to >>>>>>> Csound. The Csound side (within an instrument definition): >>>>>>> Sname chnget "filename1" >>>>>>> puts Sname, 1 >>>>>>> i1 strcmp Sname, "0" >>>>>>> if i1 == 0 goto cont2 >>>>>>> Sname = "soundin.1" >>>>>>> goto cont2 >>>>>>> >>>>>>> Problem result: >>>>>>> 1) puts prints a blank line. >>>>>>> 2) strcmp evaluates to "0", which is the "no file name to >>>>>>> communicate" >>>>>>> value. >>>>>>> 3) as a result, the default file, soundin1, is substituted. Here >>>>>>> there is >>>>>>> always a substitution. >>>>>>> >>>>>>> Bottom line: the (very long/complicated) filename seems not to be >>>>>>> passed. >>>>>>> Does anyone know why? (IOW, what am I doing wrong?) >>>>>>> >>>>>>> TIA for insight - >>>>>>> >>>>>>> Art Hunkins >>>>>>> >>>>>>> >>>>>>> ------------------------------------------------------------------------------ >>>>>>> Beautiful is writing same markup. Internet Explorer 9 supports >>>>>>> standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. >>>>>>> Spend less time writing and rewriting code and more time creating >>>>>>> great >>>>>>> experiences on the web. Be a part of the beta today. >>>>>>> http://p.sf.net/sfu/beautyoftheweb >>>>>>> _______________________________________________ >>>>>>> Csound-devel mailing list >>>>>>> Csound-devel@lists.sourceforge.net >>>>>>> https://lists.sourceforge.net/lists/listinfo/csound-devel >>>>>> >>>>>> >>>>>> ------------------------------------------------------------------------------ >>>>>> Beautiful is writing same markup. Internet Explorer 9 supports >>>>>> standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. >>>>>> Spend less time writing and rewriting code and more time creating >>>>>> great >>>>>> experiences on the web. Be a part of the beta today. >>>>>> http://p.sf.net/sfu/beautyoftheweb >>>>>> _______________________________________________ >>>>>> Csound-devel mailing list >>>>>> Csound-devel@lists.sourceforge.net >>>>>> https://lists.sourceforge.net/lists/listinfo/csound-devel >>>>> >>>>> >>>>> ------------------------------------------------------------------------------ >>>>> Beautiful is writing same markup. Internet Explorer 9 supports >>>>> standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. >>>>> Spend less time writing and rewriting code and more time creating >>>>> great >>>>> experiences on the web. Be a part of the beta today. >>>>> http://p.sf.net/sfu/beautyoftheweb >>>>> _______________________________________________ >>>>> Csound-devel mailing list >>>>> Csound-devel@lists.sourceforge.net >>>>> https://lists.sourceforge.net/lists/listinfo/csound-devel >>>> >>>> >>>> ------------------------------------------------------------------------------ >>>> Beautiful is writing same markup. Internet Explorer 9 supports >>>> standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. >>>> Spend less time writing and rewriting code and more time creating >>>> great >>>> experiences on the web. Be a part of the beta today. >>>> http://p.sf.net/sfu/beautyoftheweb >>>> _______________________________________________ >>>> Csound-devel mailing list >>>> Csound-devel@lists.sourceforge.net >>>> https://lists.sourceforge.net/lists/listinfo/csound-devel >>> >>> >>> ------------------------------------------------------------------------------ >>> Beautiful is writing same markup. Internet Explorer 9 supports >>> standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. >>> Spend less time writing and rewriting code and more time creating great >>> experiences on the web. Be a part of the beta today. >>> http://p.sf.net/sfu/beautyoftheweb >>> _______________________________________________ >>> Csound-devel mailing list >>> Csound-devel@lists.sourceforge.net >>> https://lists.sourceforge.net/lists/listinfo/csound-devel >> > > > ------------------------------------------------------------------------------ > Beautiful is writing same markup. Internet Explorer 9 supports > standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. > Spend less time writing and rewriting code and more time creating great > experiences on the web. Be a part of the beta today. > http://p.sf.net/sfu/beautyoftheweb > _______________________________________________ > Csound-devel mailing list > Csound-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/csound-devel > ------------------------------------------------------------------------------ Beautiful is writing same markup. Internet Explorer 9 supports standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. Spend less time writing and rewriting code and more time creating great experiences on the web. Be a part of the beta today. http://p.sf.net/sfu/beautyoftheweb _______________________________________________ Csound-devel mailing list Csound-devel@lists.sourceforge.net

Date	2010-10-11 10:11
From	Victor Lazzarini
Subject	Re: [Cs-dev] Fw: Csound API Question?
	I have tested the string channels in the latest Csound and there is nothing wrong with them. There has been no change from 5.10 to 5.12+ in this regard. One thing that might be happening is that you are setting the channel after the instrument in question has started. I don't think that will work because the code you require might be running in i-time. Try and make sure the instrument runs after the channel has been set. Victor On 11 Oct 2010, at 08:16, Oeyvind Brandtsegg wrote: > I think there is something wrong with string chn channels, > so that you're unable to set the value of a string chn channel from > the API. > Oeyvind > > 2010/10/10 Art Hunkins : >> Victor, >> >> I tried one further test: >> >> I copied a sound file, KayIntro.ogg, to the root directory of my >> Activity, >> and changed the appropriate line below to: >> cs.SetChannel("filename1", "KayIntro.ogg") >> I also tried: >> cs.SetChannel("filename1", KayIntro.ogg) >> >> The filename still didn't get through to chnget in Csound. >> >> Art Hunkins >> >> ----- Original Message ----- >> From: "Art Hunkins" >> To: "Developer discussions" >> Sent: Sunday, October 10, 2010 5:30 PM >> Subject: Re: [Cs-dev] Csound API Question? >> >> >>> Victor, >>> >>> With this change (at your suggestion): >>> def choose(self, widget): >>> chooser = ObjectChooser(self, what_filter=mime.GENERIC_TYPE_AUDIO) >>> result = chooser.run() >>> if result == gtk.RESPONSE_ACCEPT: >>> jobject = chooser.get_selected_object() >>> if jobject and jobject.file_path: >>> filename1 = jobject.file_path >>> print 'FileName = ', filename1 >>> cs.SetChannel("filename1", "abba") >>> >>> The "FileName =" line prints a correct (ogg) filename. Obviously the >>> correct filename/path has been located. >>> >>> In my Csound instrument: >>> Sname chnget "filename1" >>> puts Sname, 1 >>> >>> puts still prints a blank, and my program continues to treat the >>> returned >>> string as "0". >>> >>> Meanwhile, there error messages have disappeared: >>>>> File "/usr/lib/python2.6/site-packages/csnd.py", line 1736, in >>>>> SetChannel >>>>> return _csnd.Csound_SetChannel(self, args) >>>>> NotImplementedError: Wrong number of arguments for overloaded >>>>> function >>>>> 'Csound_SetChannel'. >>>>> Possible C/C++ prototypes are: >>>>> SetChannel(Csound ,char const ,double) >>>>> SetChannel(Csound ,char const ,char const ) >>> >>> Thanks again - >>> >>> Art Hunkins >>> >>> ----- Original Message ----- >>> From: "Victor Lazzarini" >>> To: "Art Hunkins" ; "Developer discussions" >>> >>> Sent: Sunday, October 10, 2010 5:08 AM >>> Subject: Re: [Cs-dev] Csound API Question? >>> >>> >>>> I think this means that one of the arguments is of the wrong type, >>>> which means. >>>> jobject.file_path. This line in your printed messages >>>> >>>> FileName = >>>> >>>> seems to indicate that it is not a string and the line >>>> >>>> print 'FileName = ', filename1 >>>> >>>> is not printing it. >>>> >>>> Try, just to test it, placing a string (any) instead of that >>>> argument >>>> and see if you get >>>> a result. >>>> >>>> Victor >>>> >>>>> File "/usr/lib/python2.6/site-packages/csnd.py", line 1736, in >>>>> SetChannel >>>>> return _csnd.Csound_SetChannel(self, args) >>>>> NotImplementedError: Wrong number of arguments for overloaded >>>>> function >>>>> 'Csound_SetChannel'. >>>>> Possible C/C++ prototypes are: >>>>> SetChannel(Csound ,char const ,double) >>>>> SetChannel(Csound ,char const ,char const ) >>>>> >>>>> I feel I've taken a step backwards. At the same time, I'm very >>>>> grateful for >>>>> your enlightenment (or for that of any other more technically >>>>> astute >>>>> Csounder than I). >>>>> >>>>> (I wonder if the filename is of the wrong type or some such, >>>>> needing >>>>> a cast >>>>> of some sort?) >>>>> >>>>> Ever appreciative - >>>>> >>>>> Art Hunkins >>>>> >>>>> ----- Original Message ----- >>>>> From: "Victor Lazzarini" >>>>> To: "Developer discussions" >>>>> Sent: Friday, October 08, 2010 7:15 PM >>>>> Subject: Re: [Cs-dev] Csound API Question? >>>>> >>>>> >>>>>> For instance the following Python code: >>>>>> >>>>>> import csnd >>>>>> cs = csnd.Csound() >>>>>> cs.Compile("string.csd", "-n") >>>>>> cs.SetChannel("filename1", "haha") >>>>>> cs.Perform() >>>>>> >>>>>> ============ string.csd: ========= >>>>>> >>>>>> >>>>>> >>>>>> instr 1 >>>>>> Sname chnget "filename1" >>>>>> puts Sname, 1 >>>>>> endin >>>>>> >>>>>> >>>>>> i1 0 1 >>>>>> >>>>>> >>>>>> >>>>>> ============= interactive run ======= >>>>>> Python 2.6.4 (r264:75821M, Oct 27 2009, 19:48:32) >>>>>> [GCC 4.0.1 (Apple Inc. build 5493)] on darwin >>>>>> Type "help", "copyright", "credits" or "license" for more >>>>>> information. >>>>>>>>> import csnd >>>>>>>>> cs = csnd.Csound() >>>>>>>>> cs.Compile("string.csd", "-n") >>>>>> PortMIDI real time MIDI plugin for Csound >>>>>> PortAudio real-time audio module for Csound >>>>>> virtual_keyboard real time MIDI plugin for Csound >>>>>> 0dBFS level = 32768.0 >>>>>> Csound version 5.12 (double samples) Jun 9 2010 >>>>>> libsndfile-1.0.21 >>>>>> UnifiedCSD: string.csd >>>>>> STARTING FILE >>>>>> Creating options >>>>>> Creating orchestra >>>>>> Creating score >>>>>> orchname: /var/folders/5P/5PSrqM3mGnCIxRlBhio0cE+++TM/-Tmp-// >>>>>> csound- >>>>>> gtttlC.orc >>>>>> scorename: /var/folders/5P/5PSrqM3mGnCIxRlBhio0cE+++TM/-Tmp-// >>>>>> csound- >>>>>> hz4vNl.sco >>>>>> rtaudio: PortAudio module enabled ... using callback interface >>>>>> rtmidi: PortMIDI module enabled >>>>>> orch compiler: >>>>>> instr 1 >>>>>> Elapsed time at end of orchestra compile: real: 0.070s, CPU: >>>>>> 0.004s >>>>>> sorting score ... >>>>>> ... done >>>>>> Elapsed time at end of score sort: real: 0.152s, CPU: 0.023s >>>>>> Csound version 5.12 (double samples) Jun 9 2010 >>>>>> 0dBFS level = 32768.0 >>>>>> orch now loaded >>>>>> audio buffered in 1024 sample-frame blocks >>>>>> not writing to sound disk >>>>>> SECTION 1: >>>>>> 0 >>>>>>>>> cs.SetChannel("filename1", "haha") >>>>>>>>> cs.Perform() >>>>>> new alloc for instr 1: >>>>>> haha >>>>>> B 0.000 ..100.000 T100.000 TT100.000 M: 0.0 >>>>>> Score finished in csoundPerform(). >>>>>> 2 >>>>>>>>> exit() >>>>>> inactive allocs returned to freespace >>>>>> end of score. overall amps: 0.0 >>>>>> overall samples out of range: 0 >>>>>> 0 errors in performance >>>>>> Elapsed time at end of performance: real: 61.690s, CPU: 0.362s >>>>>> no sound written to disk >>>>>> >>>>>> ================== >>>>>> NB: there is nothing wrong with the API. >>>>>> >>>>>> Victor >>>>>> >>>>>> On 9 Oct 2010, at 00:05, Victor Lazzarini wrote: >>>>>> >>>>>>> Where is the call to pass the filename to Csound? >>>>>>> >>>>>>> Victor >>>>>>> >>>>>>> On 8 Oct 2010, at 22:12, Art Hunkins wrote: >>>>>>> >>>>>>>> At least I think it's an API/communication problem, rather >>>>>>>> than a >>>>>>>> Python/pygtk problem. >>>>>>>> >>>>>>>> Here's the situation: I'm getting users to click on a Journal >>>>>>>> entry >>>>>>>> in Sugar >>>>>>>> (python 2.6 - Sugar 0.84, FWIW), to identify a user-supplied >>>>>>>> soundfile to >>>>>>>> load into diskin2. It's close to working. >>>>>>>> >>>>>>>> The Python side: >>>>>>>> This statement is in the main loop: >>>>>>>> self.filename1 = "0" (or "" - they both work the same) >>>>>>>> >>>>>>>> In the method in question, the Journal selection process >>>>>>>> seems to >>>>>>>> be >>>>>>>> working; the code ends with: >>>>>>>> self.filename1 = jobject.file_path >>>>>>>> print 'FileName = ', self.filename1 >>>>>>>> return self.filename1 >>>>>>>> >>>>>>>> Through the print line, things seem to work; the following >>>>>>>> line is >>>>>>>> printed >>>>>>>> (in the log), with data (filename/path) one would expect: >>>>>>>> FileName = >>>>>>>> /home/liveuser/.sugar/default/data/9b3f3023-58f1-44ad-87c3- >>>>>>>> c19d2a7561ae.ogg >>>>>>>> >>>>>>>> (BTW, this is Csound 5.10 with a recent libsndfile that >>>>>>>> accepts Ogg >>>>>>>> Vorbis >>>>>>>> files - of which the above is one.) >>>>>>>> >>>>>>>> At this point the filename does not appear to transfer via the >>>>>>>> API to >>>>>>>> Csound. The Csound side (within an instrument definition): >>>>>>>> Sname chnget "filename1" >>>>>>>> puts Sname, 1 >>>>>>>> i1 strcmp Sname, "0" >>>>>>>> if i1 == 0 goto cont2 >>>>>>>> Sname = "soundin.1" >>>>>>>> goto cont2 >>>>>>>> >>>>>>>> Problem result: >>>>>>>> 1) puts prints a blank line. >>>>>>>> 2) strcmp evaluates to "0", which is the "no file name to >>>>>>>> communicate" >>>>>>>> value. >>>>>>>> 3) as a result, the default file, soundin1, is substituted. >>>>>>>> Here >>>>>>>> there is >>>>>>>> always a substitution. >>>>>>>> >>>>>>>> Bottom line: the (very long/complicated) filename seems not >>>>>>>> to be >>>>>>>> passed. >>>>>>>> Does anyone know why? (IOW, what am I doing wrong?) >>>>>>>> >>>>>>>> TIA for insight - >>>>>>>> >>>>>>>> Art Hunkins >>>>>>>> >>>>>>>> >>>>>>>> ------------------------------------------------------------------------------ >>>>>>>> Beautiful is writing same markup. Internet Explorer 9 supports >>>>>>>> standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 >>>>>>>> & L3. >>>>>>>> Spend less time writing and rewriting code and more time >>>>>>>> creating >>>>>>>> great >>>>>>>> experiences on the web. Be a part of the beta today. >>>>>>>> http://p.sf.net/sfu/beautyoftheweb >>>>>>>> _______________________________________________ >>>>>>>> Csound-devel mailing list >>>>>>>> Csound-devel@lists.sourceforge.net >>>>>>>> https://lists.sourceforge.net/lists/listinfo/csound-devel >>>>>>> >>>>>>> >>>>>>> ------------------------------------------------------------------------------ >>>>>>> Beautiful is writing same markup. Internet Explorer 9 supports >>>>>>> standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & >>>>>>> L3. >>>>>>> Spend less time writing and rewriting code and more time >>>>>>> creating >>>>>>> great >>>>>>> experiences on the web. Be a part of the beta today. >>>>>>> http://p.sf.net/sfu/beautyoftheweb >>>>>>> _______________________________________________ >>>>>>> Csound-devel mailing list >>>>>>> Csound-devel@lists.sourceforge.net >>>>>>> https://lists.sourceforge.net/lists/listinfo/csound-devel >>>>>> >>>>>> >>>>>> ------------------------------------------------------------------------------ >>>>>> Beautiful is writing same markup. Internet Explorer 9 supports >>>>>> standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & >>>>>> L3. >>>>>> Spend less time writing and rewriting code and more time >>>>>> creating >>>>>> great >>>>>> experiences on the web. Be a part of the beta today. >>>>>> http://p.sf.net/sfu/beautyoftheweb >>>>>> _______________________________________________ >>>>>> Csound-devel mailing list >>>>>> Csound-devel@lists.sourceforge.net >>>>>> https://lists.sourceforge.net/lists/listinfo/csound-devel >>>>> >>>>> >>>>> ------------------------------------------------------------------------------ >>>>> Beautiful is writing same markup. Internet Explorer 9 supports >>>>> standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. >>>>> Spend less time writing and rewriting code and more time creating >>>>> great >>>>> experiences on the web. Be a part of the beta today. >>>>> http://p.sf.net/sfu/beautyoftheweb >>>>> _______________________________________________ >>>>> Csound-devel mailing list >>>>> Csound-devel@lists.sourceforge.net >>>>> https://lists.sourceforge.net/lists/listinfo/csound-devel >>>> >>>> >>>> ------------------------------------------------------------------------------ >>>> Beautiful is writing same markup. Internet Explorer 9 supports >>>> standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. >>>> Spend less time writing and rewriting code and more time >>>> creating great >>>> experiences on the web. Be a part of the beta today. >>>> http://p.sf.net/sfu/beautyoftheweb >>>> _______________________________________________ >>>> Csound-devel mailing list >>>> Csound-devel@lists.sourceforge.net >>>> https://lists.sourceforge.net/lists/listinfo/csound-devel >>> >> >> >> ------------------------------------------------------------------------------ >> Beautiful is writing same markup. Internet Explorer 9 supports >> standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. >> Spend less time writing and rewriting code and more time creating >> great >> experiences on the web. Be a part of the beta today. >> http://p.sf.net/sfu/beautyoftheweb >> _______________________________________________ >> Csound-devel mailing list >> Csound-devel@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/csound-devel >> > > ------------------------------------------------------------------------------ > Beautiful is writing same markup. Internet Explorer 9 supports > standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. > Spend less time writing and rewriting code and more time creating > great > experiences on the web. Be a part of the beta today. > http://p.sf.net/sfu/beautyoftheweb > _______________________________________________ > Csound-devel mailing list > Csound-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/csound-devel ------------------------------------------------------------------------------ Beautiful is writing same markup. Internet Explorer 9 supports standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. Spend less time writing and rewriting code and more time creating great experiences on the web. Be a part of the beta today. http://p.sf.net/sfu/beautyoftheweb _______________________________________________ Csound-devel mailing list Csound-devel@lists.sourceforge.net