diff options
Diffstat (limited to 'src/fdmdv_get_test_bits.c')
| -rw-r--r-- | src/fdmdv_get_test_bits.c | 164 |
1 files changed, 82 insertions, 82 deletions
diff --git a/src/fdmdv_get_test_bits.c b/src/fdmdv_get_test_bits.c index 111e173..013a870 100644 --- a/src/fdmdv_get_test_bits.c +++ b/src/fdmdv_get_test_bits.c @@ -8,7 +8,6 @@ \*---------------------------------------------------------------------------*/ - /* Copyright (C) 2012 David Rowe @@ -27,98 +26,99 @@ */ #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 *fout; - struct FDMDV *fdmdv; - char *packed_bits; - int *tx_bits; - int n, i, bit, byte; - int numBits, nCodecFrames; - int bits_per_fdmdv_frame; - int bits_per_codec_frame; - int bytes_per_codec_frame; - int Nc; - - if (argc < 3) { - printf("usage: %s OutputBitFile numBits [Nc]\n", argv[0]); - printf("e.g %s test.c2 1400\n", argv[0]); - exit(1); +int main(int argc, char *argv[]) { + FILE *fout; + struct FDMDV *fdmdv; + char *packed_bits; + int *tx_bits; + int n, i, bit, byte; + int numBits, nCodecFrames; + int bits_per_fdmdv_frame; + int bits_per_codec_frame; + int bytes_per_codec_frame; + int Nc; + + if (argc < 3) { + printf("usage: %s OutputBitFile numBits [Nc]\n", argv[0]); + printf("e.g %s test.c2 1400\n", argv[0]); + exit(1); + } + + if (strcmp(argv[1], "-") == 0) + fout = stdout; + else if ((fout = fopen(argv[1], "wb")) == NULL) { + fprintf(stderr, "Error opening output bit file: %s: %s.\n", argv[1], + strerror(errno)); + exit(1); + } + + numBits = atoi(argv[2]); + + if (argc == 4) { + Nc = atoi(argv[3]); + if ((Nc < 2) || (Nc > FDMDV_NC_MAX)) { + fprintf(stderr, "Error number of carriers must be btween 2 and %d\n", + FDMDV_NC_MAX); + exit(1); } - - if (strcmp(argv[1], "-") == 0) fout = stdout; - else if ( (fout = fopen(argv[1],"wb")) == NULL ) { - fprintf(stderr, "Error opening output bit file: %s: %s.\n", - argv[1], strerror(errno)); - 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); + tx_bits = (int *)malloc(sizeof(int) * bits_per_codec_frame); + assert(tx_bits != NULL); + + nCodecFrames = numBits / bits_per_codec_frame; + + for (n = 0; n < nCodecFrames; n++) { + fdmdv_get_test_bits(fdmdv, tx_bits); + fdmdv_get_test_bits(fdmdv, &tx_bits[bits_per_fdmdv_frame]); + + /* pack bits, MSB received first */ + + bit = 7; + byte = 0; + memset(packed_bits, 0, bytes_per_codec_frame); + for (i = 0; i < bits_per_codec_frame; i++) { + packed_bits[byte] |= (tx_bits[i] << bit); + bit--; + if (bit < 0) { + bit = 7; + byte++; + } } - numBits = atoi(argv[2]); - - if (argc == 4) { - Nc = atoi(argv[3]); - if ((Nc < 2) || (Nc > FDMDV_NC_MAX) ) { - fprintf(stderr, "Error number of carriers must be btween 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); + fwrite(packed_bits, sizeof(char), bytes_per_codec_frame, fout); - packed_bits = (char*)malloc(bytes_per_codec_frame); - assert(packed_bits != NULL); - tx_bits = (int*)malloc(sizeof(int)*bits_per_codec_frame); - assert(tx_bits != NULL); + /* if this is in a pipeline, we probably don't want the usual + buffering to occur */ - nCodecFrames = numBits/bits_per_codec_frame; + if (fout == stdout) fflush(stdout); + } - for(n=0; n<nCodecFrames; n++) { + free(tx_bits); + free(packed_bits); + fclose(fout); + fdmdv_destroy(fdmdv); - fdmdv_get_test_bits(fdmdv, tx_bits); - fdmdv_get_test_bits(fdmdv, &tx_bits[bits_per_fdmdv_frame]); - - /* pack bits, MSB received first */ - - bit = 7; byte = 0; - memset(packed_bits, 0, bytes_per_codec_frame); - for(i=0; i<bits_per_codec_frame; i++) { - packed_bits[byte] |= (tx_bits[i] << bit); - bit--; - if (bit < 0) { - bit = 7; - byte++; - } - } - - fwrite(packed_bits, sizeof(char), bytes_per_codec_frame, fout); - - /* if this is in a pipeline, we probably don't want the usual - buffering to occur */ - - if (fout == stdout) fflush(stdout); - } - - free(tx_bits); - free(packed_bits); - fclose(fout); - fdmdv_destroy(fdmdv); - - return 0; + return 0; } - |