Hello, today I try to compile a test-file from the Documentation. I link the libarys correct but have only one error in this line: state = speex_encoder_init(&speex_nb_mode); The error: main.cpp|21|undefined reference to `speex_nb_mode'| The linking libarys: "libspeex.lib" "libspeexdsp.lib" I ask in more c++ boards, but nobody can help me. Hopefully I ask the developer :) sincerely yours, Werner Mandla The code: #include "speex/speex.h" #include /*The frame size in hardcoded for this sample code but it doesn't have to be*/ #define FRAME_SIZE 160 int main(int argc, char **argv) { char *inFile; FILE *fin; short in[FRAME_SIZE]; float input[FRAME_SIZE]; char cbits[200]; int nbBytes; /*Holds the state of the encoder*/ void *state; /*Holds bits so they can be read and written to by the Speex routines*/ SpeexBits bits; int i, tmp; /*Create a new encoder state in narrowband mode*/ state = speex_encoder_init(&speex_nb_mode); /*Set the quality to 8 (15 kbps)*/ tmp=8; speex_encoder_ctl(state, SPEEX_SET_QUALITY, &tmp); inFile = argv[1]; fin = fopen(inFile, "r"); /*Initialization of the structure that holds the bits*/ speex_bits_init(&bits); while (1) { /*Read a 16 bits/sample audio frame*/ fread(in, sizeof(short), FRAME_SIZE, fin); if (feof(fin)) break; /*Copy the 16 bits values to float so Speex can work on them*/ for (i=0;i<frame_size;i++)> input[i]=in[i]; /*Flush all the bits in the struct so we can encode a new frame*/ speex_bits_reset(&bits); /*Encode the frame*/ speex_encode(state, input, &bits); /*Copy the bits to an array of char that can be written*/ nbBytes = speex_bits_write(&bits, cbits, 200); /*Write the size of the frame first. This is what sampledec expects but it's likely to be different in your own application*/ fwrite(&nbBytes, sizeof(int), 1, stdout); /*Write the compressed data*/ fwrite(cbits, 1, nbBytes, stdout); } /*Destroy the encoder state*/ speex_encoder_destroy(state); /*Destroy the bit-packing struct*/ speex_bits_destroy(&bits); fclose(fin); return 0; } -- Psssst! Schon vom neuen GMX MultiMessenger geh?rt? Der kann`s mit allen: http://www.gmx.net/de/go/multimessenger01