bits->overflow=0;
void speex_bits_read_from(SpeexBits *bits, char *bytes, int len){   int i;   if (len > MAX_BYTES_PER_FRAME)   {      speex_error ("Trying to init frame with too many bits");   }   for (i=0;i<len;i++)      bits->bytes[i]=bytes[i];   bits->nbBits=len<<3;   bits->bytePtr=0;   bits->bitPtr=0;}