[Cs-dev] Fwd: A couple of questions, and some help with some code.

Date	2011-11-09 00:01
From	Joshua Brown
Subject	[Cs-dev] Fwd: A couple of questions, and some help with some code.
	Hello, I have a couple of questions: 1) Where can I find the source code for the libcsound API (& if possible, build instructions)? I am interested in porting it to android. 2) I have attempted to modify some C++ code which uses libcsound written by Victor Lazzarini, so that it will run in C. The modified code 'works' but sounds funny. I can't spot what I'm doing wrong: ==================== #include #include int main(int argc, char *argv){ // sender, receiver instances CSOUND sender, receiver; MYFLT psend, precv; char sar[20], kar[20]; int res,i,ksmps; // set sender argvs char * senderargv = malloc(sizeof(char)(10+2)); senderargv[1] = "sender.csd"; senderargv[2] = "-n"; // create instances sender = csoundCreate(NULL); receiver = csoundCreate(NULL); // compile sender // retrieve kr& sr csoundPreCompile(sender); //NOTE: Returns CSOUND_SUCCESS on success, and CSOUND_ERROR or CSOUND_MEMORY if an error occured. csoundCompile(sender, 3, senderargv); sprintf(sar, "--sample-rate=%d", (int)csoundGetSr(sender)); sprintf(kar, "--control-rate=%d", (int)csoundGetKr(sender)); // set receiver argvs char * receiverargv = malloc(sizeof(char)*12+sizeof(kar)+sizeof(sar)); receiverargv[1] = "receiver.csd"; receiverargv[2] = kar; receiverargv[3] = sar; // compile receiver // force kr& sr csoundPreCompile(receiver); //NOTE: Returns CSOUND_SUCCESS on success, and CSOUND_ERROR or CSOUND_MEMORY if an error occured. csoundCompile(receiver, 4, receiverargv); // get send and receive buffers psend = csoundGetSpout(sender); precv = csoundGetSpin(receiver); ksmps = csoundGetKsmps(sender); // fill first ksmps vector res = csoundPerformKsmps(sender); while(!res){ // copy sender output to receiver input for(i=0; i< ksmps; i++) precv[i] = psend[i]; // process ksmps vectors res = csoundPerformKsmps(receiver); if(!res) res = csoundPerformKsmps(sender); } csoundDestroy(sender); csoundDestroy(receiver); } ======================= sender.csd -d sr=16000 ksmps=64 nchnls=1 instr 1 asig diskin "clar.wav", 1, 0, 1 out asig endin i1 0 60 e ======================== receiver.csd -W -owhoo.wav -b1024 -d sr=16000 ksmps=64 nchnls=1 instr 1 aout in out aout endin i1 0 60 e ======================= Link to clar.wav: http://labrosa.ee.columbia.edu/matlab/sinemodel/clar.wav Hope I'm sending this message to the correct place. Any help, very much appreciated, Josh ------------------------------------------------------------------------------ RSA(R) Conference 2012 Save $700 by Nov 18 Register now http://p.sf.net/sfu/rsa-sfdev2dev1 _______________________________________________ Csound-devel mailing list Csound-devel@lists.sourceforge.net

Date	2011-11-09 02:18
From	Steven Yi
Subject	Re: [Cs-dev] Fwd: A couple of questions, and some help with some code.
	Hi Joshua, I've actually been working on getting Csound working on Android. I've gotten as far as getting libcsound compiled for android armeabi together with libsndfile. The next steps though require getting either the SWIG wrapper to work with Android or writing JNI code, and also interfacing csound with OpenSL, which I have some code for from Victor. The next steps are a little tricky though, so it may take some time to get it completed together with some test Android example code. steven On Wed, Nov 9, 2011 at 12:01 AM, Joshua Brown wrote: > Hello, I have a couple of questions: > > 1) Where can I find the source code for the libcsound API (& if > possible, build instructions)? I am interested in porting it to android. > > 2) I have attempted to modify some C++ code which uses libcsound written > by Victor Lazzarini, so that it will run in C. The modified code 'works' > but sounds funny. I can't spot what I'm doing wrong: > > ==================== > > #include > #include > > int main(int argc, char *argv){ > > // sender, receiver instances > CSOUND sender, receiver; > MYFLT psend, precv; > char sar[20], kar[20]; > int res,i,ksmps; > > // set sender argvs > char * senderargv = malloc(sizeof(char)(10+2)); > senderargv[1] = "sender.csd"; > senderargv[2] = "-n"; > > // create instances > sender = csoundCreate(NULL); > receiver = csoundCreate(NULL); > > // compile sender > // retrieve kr& sr > csoundPreCompile(sender); //NOTE: Returns CSOUND_SUCCESS on success, and > CSOUND_ERROR or CSOUND_MEMORY if an error occured. > csoundCompile(sender, 3, senderargv); > sprintf(sar, "--sample-rate=%d", (int)csoundGetSr(sender)); > sprintf(kar, "--control-rate=%d", (int)csoundGetKr(sender)); > > // set receiver argvs > char * receiverargv = malloc(sizeof(char)*12+sizeof(kar)+sizeof(sar)); > receiverargv[1] = "receiver.csd"; > receiverargv[2] = kar; > receiverargv[3] = sar; > > // compile receiver > // force kr& sr > csoundPreCompile(receiver); //NOTE: Returns CSOUND_SUCCESS on success, > and CSOUND_ERROR or CSOUND_MEMORY if an error occured. > csoundCompile(receiver, 4, receiverargv); > > // get send and receive buffers > psend = csoundGetSpout(sender); > precv = csoundGetSpin(receiver); > ksmps = csoundGetKsmps(sender); > > // fill first ksmps vector > res = csoundPerformKsmps(sender); > while(!res){ > // copy sender output to receiver input > for(i=0; i< ksmps; i++) precv[i] = psend[i]; > // process ksmps vectors > res = csoundPerformKsmps(receiver); > if(!res) res = csoundPerformKsmps(sender); > } > > csoundDestroy(sender); > csoundDestroy(receiver); > > } > > ======================= > sender.csd > > > > > -d > > > sr=16000 > ksmps=64 > nchnls=1 > > instr 1 > > asig diskin "clar.wav", 1, 0, 1 > out asig > > endin > > > > i1 0 60 > e > > > > ======================== > receiver.csd > > > > > -W -owhoo.wav -b1024 -d > > > sr=16000 > ksmps=64 > nchnls=1 > > instr 1 > aout in > out aout > > endin > > > > i1 0 60 > e > > > > ======================= > > Link to clar.wav: http://labrosa.ee.columbia.edu/matlab/sinemodel/clar.wav > > > Hope I'm sending this message to the correct place. Any help, very much > appreciated, > > Josh > > > ------------------------------------------------------------------------------ > RSA(R) Conference 2012 > Save $700 by Nov 18 > Register now > http://p.sf.net/sfu/rsa-sfdev2dev1 > _______________________________________________ > Csound-devel mailing list > Csound-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/csound-devel > ------------------------------------------------------------------------------ RSA(R) Conference 2012 Save $700 by Nov 18 Register now http://p.sf.net/sfu/rsa-sfdev2dev1 _______________________________________________ Csound-devel mailing list Csound-devel@lists.sourceforge.net

Date	2011-11-09 03:18
From	Joshua Brown
Subject	Re: [Cs-dev] Fwd: A couple of questions, and some help with some code.
	On 09/11/11 02:18, Steven Yi wrote: > Hi Joshua, > > I've actually been working on getting Csound working on Android. I've > gotten as far as getting libcsound compiled for android armeabi > together with libsndfile. The next steps though require getting > either the SWIG wrapper to work with Android or writing JNI code, and > also interfacing csound with OpenSL, which I have some code for from > Victor. The next steps are a little tricky though, so it may take > some time to get it completed together with some test Android example > code. > > steven > > > On Wed, Nov 9, 2011 at 12:01 AM, Joshua Brown wrote: > >> Hello, I have a couple of questions: >> >> 1) Where can I find the source code for the libcsound API (& if >> possible, build instructions)? I am interested in porting it to android. >> >> 2) I have attempted to modify some C++ code which uses libcsound written >> by Victor Lazzarini, so that it will run in C. The modified code 'works' >> but sounds funny. I can't spot what I'm doing wrong: >> >> ==================== >> >> #include >> #include >> >> int main(int argc, char *argv){ >> >> // sender, receiver instances >> CSOUND sender, receiver; >> MYFLT psend, precv; >> char sar[20], kar[20]; >> int res,i,ksmps; >> >> // set sender argvs >> char * senderargv = malloc(sizeof(char)(10+2)); >> senderargv[1] = "sender.csd"; >> senderargv[2] = "-n"; >> >> // create instances >> sender = csoundCreate(NULL); >> receiver = csoundCreate(NULL); >> >> // compile sender >> // retrieve kr& sr >> csoundPreCompile(sender); //NOTE: Returns CSOUND_SUCCESS on success, and >> CSOUND_ERROR or CSOUND_MEMORY if an error occured. >> csoundCompile(sender, 3, senderargv); >> sprintf(sar, "--sample-rate=%d", (int)csoundGetSr(sender)); >> sprintf(kar, "--control-rate=%d", (int)csoundGetKr(sender)); >> >> // set receiver argvs >> char * receiverargv = malloc(sizeof(char)*12+sizeof(kar)+sizeof(sar)); >> receiverargv[1] = "receiver.csd"; >> receiverargv[2] = kar; >> receiverargv[3] = sar; >> >> // compile receiver >> // force kr& sr >> csoundPreCompile(receiver); //NOTE: Returns CSOUND_SUCCESS on success, >> and CSOUND_ERROR or CSOUND_MEMORY if an error occured. >> csoundCompile(receiver, 4, receiverargv); >> >> // get send and receive buffers >> psend = csoundGetSpout(sender); >> precv = csoundGetSpin(receiver); >> ksmps = csoundGetKsmps(sender); >> >> // fill first ksmps vector >> res = csoundPerformKsmps(sender); >> while(!res){ >> // copy sender output to receiver input >> for(i=0; i< ksmps; i++) precv[i] = psend[i]; >> // process ksmps vectors >> res = csoundPerformKsmps(receiver); >> if(!res) res = csoundPerformKsmps(sender); >> } >> >> csoundDestroy(sender); >> csoundDestroy(receiver); >> >> } >> >> ======================= >> sender.csd >> >> >> >> >> -d >> >> >> sr=16000 >> ksmps=64 >> nchnls=1 >> >> instr 1 >> >> asig diskin "clar.wav", 1, 0, 1 >> out asig >> >> endin >> >> >> >> i1 0 60 >> e >> >> >> >> ======================== >> receiver.csd >> >> >> >> >> -W -owhoo.wav -b1024 -d >> >> >> sr=16000 >> ksmps=64 >> nchnls=1 >> >> instr 1 >> aout in >> out aout >> >> endin >> >> >> >> i1 0 60 >> e >> >> >> >> ======================= >> >> Link to clar.wav: http://labrosa.ee.columbia.edu/matlab/sinemodel/clar.wav >> >> >> Hope I'm sending this message to the correct place. Any help, very much >> appreciated, >> >> Josh >> >> >> ------------------------------------------------------------------------------ >> RSA(R) Conference 2012 >> Save $700 by Nov 18 >> Register now >> http://p.sf.net/sfu/rsa-sfdev2dev1 >> _______________________________________________ >> Csound-devel mailing list >> Csound-devel@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/csound-devel >> >> > ------------------------------------------------------------------------------ > RSA(R) Conference 2012 > Save $700 by Nov 18 > Register now > http://p.sf.net/sfu/rsa-sfdev2dev1 > _______________________________________________ > Csound-devel mailing list > Csound-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/csound-devel > > > This is encouraging to hear. Wish I knew how to help with the SWIG wrapper, it seems a bit beyond me. ------------------------------------------------------------------------------ RSA(R) Conference 2012 Save $700 by Nov 18 Register now http://p.sf.net/sfu/rsa-sfdev2dev1 _______________________________________________ Csound-devel mailing list Csound-devel@lists.sourceforge.net