diff options
Diffstat (limited to 'serve_image.c')
| -rw-r--r-- | serve_image.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/serve_image.c b/serve_image.c index 30ceaeb..78b7216 100644 --- a/serve_image.c +++ b/serve_image.c @@ -42,6 +42,7 @@ int main(int argc, char **argv) struct timeval then, now, nextpkt; long time_msecs; int pkts_per_block; + int total_pkts_per_block; struct fec_parms *fec; unsigned char *last_block; uint32_t *block_crcs; @@ -72,6 +73,7 @@ int main(int argc, char **argv) } pkts_per_block = (erasesize + PKT_SIZE - 1) / PKT_SIZE; + total_pkts_per_block = pkts_per_block * 3 / 2; /* We have to pad it with zeroes, so can't use it in-place */ last_block = malloc(pkts_per_block * PKT_SIZE); @@ -80,7 +82,7 @@ int main(int argc, char **argv) exit(1); } - fec = fec_new(pkts_per_block, pkts_per_block * 2); + fec = fec_new(pkts_per_block, total_pkts_per_block); if (!fec) { fprintf(stderr, "Error initialising FEC\n"); exit(1); @@ -152,7 +154,7 @@ int main(int argc, char **argv) pktbuf.hdr.nr_blocks = htonl(nr_blocks); pktbuf.hdr.blocksize = htonl(erasesize); pktbuf.hdr.thislen = htonl(PKT_SIZE); - pktbuf.hdr.nr_pkts = htons(pkts_per_block * 2); + pktbuf.hdr.nr_pkts = htons(total_pkts_per_block); printf("%08x\n", ntohl(pktbuf.hdr.totcrc)); printf("Checking block CRCs...."); @@ -176,10 +178,10 @@ int main(int argc, char **argv) srand((unsigned)then.tv_usec); printf("Random seed %u\n", (unsigned)then.tv_usec); #endif - while (1) for (pkt_nr=0; pkt_nr < pkts_per_block * 2; pkt_nr++) { + while (1) for (pkt_nr=0; pkt_nr < total_pkts_per_block; pkt_nr++) { if (blockptr && pkt_nr == 0) { - unsigned long amt_sent = pkts_per_block * nr_blocks * sizeof(pktbuf) * 2; + unsigned long amt_sent = total_pkts_per_block * nr_blocks * sizeof(pktbuf); gettimeofday(&now, NULL); time_msecs = (now.tv_sec - then.tv_sec) * 1000; @@ -202,10 +204,8 @@ int main(int argc, char **argv) bitrate in the second half of the sequence */ if (block_nr & 1) actualpkt = pkt_nr; - else if (pkt_nr >= pkts_per_block) - actualpkt = pkt_nr - pkts_per_block; - else - actualpkt = pkt_nr + pkts_per_block; + else + actualpkt = total_pkts_per_block - 1 - pkt_nr; blockptr = image + (erasesize * block_nr); if (block_nr == nr_blocks - 1) @@ -221,7 +221,7 @@ int main(int argc, char **argv) printf("\rSending data block %08x packet %3d/%d", block_nr * erasesize, - pkt_nr, pkts_per_block * 2); + pkt_nr, total_pkts_per_block); if (pkt_nr && !block_nr) { unsigned long amt_sent = pkt_nr * nr_blocks * sizeof(pktbuf); |