//Here's the excerpt from my miniSEED.h
 
#define MAXSEEDFRAMES       7   //7 for 512, 63 for 4096
#define MAXWORDSPERFRAME    16
typedef int     compressed_frame[MAXWORDSPERFRAME];
 
typedef struct {
    mSEED_header    head;
    compressed_frame frames[MAXSEEDFRAMES];
} mSEED_record;
 
typedef struct mSEED_secBuf {
    mSEED_record *rec_ptr;  //some pointer to the seed data frame
    int subframe[MAXWORDSPERFRAME];       // temp array to hold frame data
    int channel;            // Determines which channel's frame
 
    int ori_dnib;           // Subframe formatting
    int new_dnib;
 
    int data_buffer[7];     // Compressed data pre-storage
    int buff_count;         // The current buffer position
    int sub_count;          // The current subframe being written to
    int frame_count;        // The current frame # being written to
    int fwd_int_const;      // Forward Integration Constant
    int rev_int_const;      // Reverse Integration Constant
} mSEED_data, *pmSEED_data;
 
//heres the excerpt where i copy the data over
// store the dnib code, if buffer has enough data, fill the subframe
        if(steim_concat(p_msDAT)) {
            fill_subframe(p_msDAT);
            memcpy(p_msDAT->subframe, p_msDAT->rec_ptr->frames[p_msDAT->frame_count],
                        (sizeof(int)*MAXWORDSPERFRAME));
        }

typedef struct {
    int frame[MAXWORDSPERFRAME];
} compressed_frame;