I'm developing a voice chat and I used speex to compress the data that is being transmitted. But I encountered a crash when I try to decode the received data. I compress the data using this code:
Init method (runs only one time):
/*Create a new encoder state in narrowband mode*/
state = speex_encoder_init(&speex_nb_mode);
/*Set the quality to 8 (15 kbps)*/
int tmp=8;
speex_encoder_ctl(state, SPEEX_SET_QUALITY, &tmp);
speex_bits_init(&bits);
Compress method:
AudioBuffer sourceBuffer = bufferList->mBuffers[0];
speex_bits_reset(&bits);
/*Encode the frame*/
speex_encode(state, sourceBuffer.mData, &bits);
char cbits[200];
int nbBytes = speex_bits_write(&bits, cbits, 200);
NSData *result = [[NSData alloc] initWithBytes:cbits length:200];
Decompress method:
NSLog(@"Lenght %d", [data length]);
speex_bits_reset(&bits);
/*Copy the data into the bit-stream struct*/
speex_bits_read_from(&bits, (void*)[data bytes], [data length]);
/*Decode the data*/
speex_decode(state, &bits, tempBuffer.mData);
Same initialization as before
It crashes with no error at speex_decode. I checked the length of the input NSData and the output one and they are the same. Bytes inside are the same.
