Python c example2:pylame2

#include <Python.h>#include<lame.h>//Pyton Object Variablestypedefstruct{pyobject_head FILE*OUTFP; Lame_global_flags*GFP;} Pylame2_encoderobject;StaticPyobject *encoder_new (Pytypeobject *type, Pyobject *args, Pyobject *kw) {Pylame2_encoderobject*self = (Pylame2_encoderobject *) Type->tp_alloc (type,0); Self-&GT;OUTFP =NULL; Self-&GT;GFP =NULL; return(Pyobject *) self;}Static voidEncoder_dealloc (Pylame2_encoderobject *Self ) {    if(self->GFP) {Lame_close ( self-GFP); }    if(self->OUTFP) {fclose ( self-OUTFP); } Self->ob_type->tp_free (self);}Static intEncoder_init (Pylame2_encoderobject * Self, pyobject *args, Pyobject *kw) {    Char*Outpath; if(! Pyarg_parsetuple (args,"s", &Outpath)) {        return-1; }    if(SELF-&GT;OUTFP | | self->GFP) {pyerr_setstring (pyexc_exception,"__init__ already called"); return-1; } Self-&GT;OUTFP = fopen (Outpath,"WB"); Self-&GT;GFP =Lame_init (); Lame_init_params ( Self-GFP); return 0;}StaticPyobject *encoder_encode (Pylame2_encoderobject *self, Pyobject *args) {    Char*In_buffer; intin_length; intmp3_length; Char*Mp3_buffer; intmp3_bytes; if(! (SELF-&GT;OUTFP && self->GTP)) {pyerr_setstring (pyexc_exception,"Encoder not open"); returnNULL; }    if(! Pyarg_parsetuple (args,"s#", &in_buffer, &in_length)) {        returnNULL; } in_length/=2; Mp3_length= (int)(1.25* in_length) +7200; Mp3_buffer= (Char*)malloc(mp3_length); if(In_length >0) {mp3_bytes=lame_encode_buffer_interleaved ( self-GTP, ( Short*) In_buffer, In_length/2, Mp3_buffer, mp3_length); if(Mpe3_bytes >0) {fwrite (Mp3_buffer,1, Mp3_bytes, self->OUTFP); }    }     Free(Mp3_buffer); Py_return_none;}StaticPyobject *encoder_close (Pylame2_encoderobject *Self ) {    intmp3_length; Char*Mp3_buffer; intmpe3_bytes; if(! (SELF-&GT;OUTFP && self->GFP)) {pyerr_setstring (pyexc_exception,"Encoder not open"); returnNULL; } mp3_length=7200; Mp3_buffer= (Char*)malloc(mp3_length); Mp3_bytes= Lame_encode_flush (SELF-&GT;GFP, Mp3_buffer,sizeof(Mp3_buffer)); if(Mp3_bytes >0) {fwrite (Mp3_buffer,1, Mp3_bytes, self->OUTFP); }     Free(Mp3_buffer); Lame_close ( Self-GFP); Self-&GT;GFP =NULL; Fclose ( Self-OUTFP); Self-&GT;OUTFP =NULL; Py_return_none;}StaticPymethoddef encoder_methods[] ={    {"encode", (pycfunction) Encoder_encode, Meth_varargs,"encodes and writes data to the output file."},    {"Close", (pycfunction) Encoder_close, Meth_noargs,"closes the output file."}, {null, NULL,0, NULL}};StaticPytypeobject Pylame2_encodertype ={pyobject_head_init (NULL)0,/*ob_size*/    "pylame2. Encoder",/*Tp_name*/    sizeof(Pylame2_encoderobject),/*tp_basicsize*/    0,/*tp_itemsize*/(destructor) Encoder_dealloc,/*Tp_dealloc*/    0,/*Tp_print*/    0,/*tp_getattr*/    0,/*tp_setattr*/    0,/*Tp_compare*/    0,/*Tp_repr*/    0,/*Tp_as_number*/    0,/*tp_as_sequence*/    0,/*tp_as_mapping*/    0,/*Tp_hash*/    0,/*Tp_call*/    0,/*Tp_str*/    0,/*Tp_getattro*/    0,/*Tp_setattro*/Py_tpflags_default,/*Tp_flags*/    "My First Encoder object.",/*Tp_doc*/    0,/*Tp_traverse*/    0,/*Tp_clear*/    0,/*Tp_richcompare*/    0,/*Tp_weaklistoffset*/    0,/*Tp_iter*/    0,/*Tp_iternext*/Encoder_methods,/*Tp_methods*/    0,/*tp_members*/    0,/*Tp_getset*/    0,/*Tp_base*/    0,/*tp_dict*/    0,/*Tp_descr_get*/    0,/*Tp_descr_set*/    0,/*Tp_dictoffset*/(Initproc) Encoder_init,/*Tp_init*/    0,/*Tp_alloc*/Encoder_new,/*tp_new*/    0,/*Tp_free*/};StaticPymethoddef pylame2_methods[] ={{null, NULL,0, NULL}}; Pymodinit_func initpylame2 () {Pyobject*m; if(Pytype_ready (&pylame2_encodertype) <0)    {        return; } m= Py_initmodule3 ("pylame2", Pylame2_methods,"My Second LAME module."); Py_incref (&Pylame2_encodertype); Pymodule_addobject (M,"Encoder", (Pyobject *) &pylame2_encodertype);};/*gcc-shared-i/usr/include/pytyon3.1-i/usr/include/lame pylame2.c-lmp3lame-o pylame2.so*//*Python code import pylame2 inbufsize = 4096 encoder = pylame2. Encoder (' Test.mp3 ') input = file (' Test.raw ', ' RB ') data = Input.read (inbufsize) while data! = ': Encoder. Encode (data) data = Input.read (inbufsize) input.close () encoder.close ()*/

Python c example2:pylame2