diff options
Diffstat (limited to 'src/fdmdv_put_test_bits.c')
| -rw-r--r-- | src/fdmdv_put_test_bits.c | 250 |
1 files changed, 125 insertions, 125 deletions
diff --git a/src/fdmdv_put_test_bits.c b/src/fdmdv_put_test_bits.c index abda2f9..01bb3f3 100644 --- a/src/fdmdv_put_test_bits.c +++ b/src/fdmdv_put_test_bits.c @@ -9,7 +9,6 @@ \*---------------------------------------------------------------------------*/ - /* Copyright (C) 2012 David Rowe @@ -28,140 +27,141 @@ */ #include <assert.h> +#include <errno.h> +#include <math.h> #include <stdio.h> #include <stdlib.h> #include <string.h> -#include <math.h> -#include <errno.h> #include "codec2_fdmdv.h" -int main(int argc, char *argv[]) -{ - FILE *fin; - struct FDMDV *fdmdv; - char *packed_bits; - int *rx_bits; - int i, bit, byte; - int test_frame_sync, bit_errors, total_bit_errors, total_bits, ntest_bits; - int test_frame_sync_state, test_frame_count; - int bits_per_fdmdv_frame; - int bits_per_codec_frame; - int bytes_per_codec_frame; - int Nc; - short *error_pattern; - - if (argc < 2) { - printf("usage: %s InputBitFile [Nc]\n", argv[0]); - printf("e.g %s test.c2\n", argv[0]); - exit(1); - } - - if (strcmp(argv[1], "-") == 0) fin = stdin; - else if ( (fin = fopen(argv[1],"rb")) == NULL ) { - fprintf(stderr, "Error opening input bit file: %s: %s.\n", - argv[1], strerror(errno)); - exit(1); - } - - if (argc == 3) { - Nc = atoi(argv[2]); - if ((Nc < 2) || (Nc > FDMDV_NC_MAX) ) { - fprintf(stderr, "Error number of carriers must be between 2 and %d\n", FDMDV_NC_MAX); - exit(1); - } +int main(int argc, char *argv[]) { + FILE *fin; + struct FDMDV *fdmdv; + char *packed_bits; + int *rx_bits; + int i, bit, byte; + int test_frame_sync, bit_errors, total_bit_errors, total_bits, ntest_bits; + int test_frame_sync_state, test_frame_count; + int bits_per_fdmdv_frame; + int bits_per_codec_frame; + int bytes_per_codec_frame; + int Nc; + short *error_pattern; + + if (argc < 2) { + printf("usage: %s InputBitFile [Nc]\n", argv[0]); + printf("e.g %s test.c2\n", argv[0]); + exit(1); + } + + if (strcmp(argv[1], "-") == 0) + fin = stdin; + else if ((fin = fopen(argv[1], "rb")) == NULL) { + fprintf(stderr, "Error opening input bit file: %s: %s.\n", argv[1], + strerror(errno)); + exit(1); + } + + if (argc == 3) { + Nc = atoi(argv[2]); + if ((Nc < 2) || (Nc > FDMDV_NC_MAX)) { + fprintf(stderr, "Error number of carriers must be between 2 and %d\n", + FDMDV_NC_MAX); + exit(1); } - else - Nc = FDMDV_NC; - - fdmdv = fdmdv_create(Nc); - - bits_per_fdmdv_frame = fdmdv_bits_per_frame(fdmdv); - bits_per_codec_frame = 2*fdmdv_bits_per_frame(fdmdv); - bytes_per_codec_frame = (bits_per_codec_frame+7)/8; - fprintf(stderr, "bits_per_fdmdv_frame: %d bits_per_codec_frame: %d bytes_per_codec_frame: %d\n", - bits_per_fdmdv_frame, bits_per_codec_frame, bytes_per_codec_frame); - - packed_bits = (char*)malloc(bytes_per_codec_frame); - assert(packed_bits != NULL); - rx_bits = (int*)malloc(sizeof(int)*bits_per_codec_frame); - assert(rx_bits != NULL); - - error_pattern = (short*)malloc(fdmdv_error_pattern_size(fdmdv)*sizeof(int)); - assert(error_pattern != NULL); - - total_bit_errors = 0; - total_bits = 0; - test_frame_sync_state = 0; - test_frame_count = 0; - - while(fread(packed_bits, sizeof(char), bytes_per_codec_frame, fin) == bytes_per_codec_frame) { - /* unpack bits, MSB first */ - - bit = 7; byte = 0; - for(i=0; i<bits_per_codec_frame; i++) { - rx_bits[i] = (packed_bits[byte] >> bit) & 0x1; - //printf("%d 0x%x %d\n", i, packed_bits[byte], rx_bits[i]); - bit--; - if (bit < 0) { - bit = 7; - byte++; - } - } - - fdmdv_put_test_bits(fdmdv, &test_frame_sync, error_pattern, &bit_errors, &ntest_bits, rx_bits); - - if (test_frame_sync == 1) { - test_frame_sync_state = 1; - test_frame_count = 0; - } - - if (test_frame_sync_state) { - if (test_frame_count == 0) { - total_bit_errors += bit_errors; - total_bits = total_bits + ntest_bits; - printf("+"); - } - else - printf("-"); - test_frame_count++; - if (test_frame_count == 4) - test_frame_count = 0; - } - else - printf("-"); - - fdmdv_put_test_bits(fdmdv, &test_frame_sync, error_pattern, &bit_errors, &ntest_bits, &rx_bits[bits_per_fdmdv_frame]); - - if (test_frame_sync == 1) { - test_frame_sync_state = 1; - test_frame_count = 0; - } - - if (test_frame_sync_state) { - if (test_frame_count == 0) { - total_bit_errors += bit_errors; - total_bits = total_bits + ntest_bits; - printf("+"); - } - else - printf("-"); - test_frame_count++; - if (test_frame_count == 4) - test_frame_count = 0; - } - else - printf("-"); + } else + Nc = FDMDV_NC; + + fdmdv = fdmdv_create(Nc); + + bits_per_fdmdv_frame = fdmdv_bits_per_frame(fdmdv); + bits_per_codec_frame = 2 * fdmdv_bits_per_frame(fdmdv); + bytes_per_codec_frame = (bits_per_codec_frame + 7) / 8; + fprintf(stderr, + "bits_per_fdmdv_frame: %d bits_per_codec_frame: %d " + "bytes_per_codec_frame: %d\n", + bits_per_fdmdv_frame, bits_per_codec_frame, bytes_per_codec_frame); + + packed_bits = (char *)malloc(bytes_per_codec_frame); + assert(packed_bits != NULL); + rx_bits = (int *)malloc(sizeof(int) * bits_per_codec_frame); + assert(rx_bits != NULL); + + error_pattern = + (short *)malloc(fdmdv_error_pattern_size(fdmdv) * sizeof(int)); + assert(error_pattern != NULL); + + total_bit_errors = 0; + total_bits = 0; + test_frame_sync_state = 0; + test_frame_count = 0; + + while (fread(packed_bits, sizeof(char), bytes_per_codec_frame, fin) == + bytes_per_codec_frame) { + /* unpack bits, MSB first */ + + bit = 7; + byte = 0; + for (i = 0; i < bits_per_codec_frame; i++) { + rx_bits[i] = (packed_bits[byte] >> bit) & 0x1; + // printf("%d 0x%x %d\n", i, packed_bits[byte], rx_bits[i]); + bit--; + if (bit < 0) { + bit = 7; + byte++; + } } - fclose(fin); - free(error_pattern); - fdmdv_destroy(fdmdv); + fdmdv_put_test_bits(fdmdv, &test_frame_sync, error_pattern, &bit_errors, + &ntest_bits, rx_bits); - printf("\nbits %d errors %d BER %1.4f\n", total_bits, total_bit_errors, (float)total_bit_errors/(1E-6+total_bits) ); + if (test_frame_sync == 1) { + test_frame_sync_state = 1; + test_frame_count = 0; + } - if (packed_bits != NULL) free(packed_bits); + if (test_frame_sync_state) { + if (test_frame_count == 0) { + total_bit_errors += bit_errors; + total_bits = total_bits + ntest_bits; + printf("+"); + } else + printf("-"); + test_frame_count++; + if (test_frame_count == 4) test_frame_count = 0; + } else + printf("-"); + + fdmdv_put_test_bits(fdmdv, &test_frame_sync, error_pattern, &bit_errors, + &ntest_bits, &rx_bits[bits_per_fdmdv_frame]); + + if (test_frame_sync == 1) { + test_frame_sync_state = 1; + test_frame_count = 0; + } - return 0; + if (test_frame_sync_state) { + if (test_frame_count == 0) { + total_bit_errors += bit_errors; + total_bits = total_bits + ntest_bits; + printf("+"); + } else + printf("-"); + test_frame_count++; + if (test_frame_count == 4) test_frame_count = 0; + } else + printf("-"); + } + + fclose(fin); + free(error_pattern); + fdmdv_destroy(fdmdv); + + printf("\nbits %d errors %d BER %1.4f\n", total_bits, total_bit_errors, + (float)total_bit_errors / (1E-6 + total_bits)); + + if (packed_bits != NULL) free(packed_bits); + + return 0; } - |