diff options
Diffstat (limited to 'src/c2dec.c')
| -rw-r--r-- | src/c2dec.c | 725 |
1 files changed, 360 insertions, 365 deletions
diff --git a/src/c2dec.c b/src/c2dec.c index 176d516..5cd5383 100644 --- a/src/c2dec.c +++ b/src/c2dec.c @@ -25,405 +25,400 @@ along with this program; if not, see <http://www.gnu.org/licenses/>. */ -#include "codec2.h" -#include "dump.h" -#include "c2file.h" - #include <assert.h> +#include <errno.h> +#include <getopt.h> #include <stdio.h> #include <stdlib.h> #include <string.h> -#include <errno.h> -#include <getopt.h> -#define NONE 0 /* no bit errors */ -#define UNIFORM 1 /* random bit errors */ -#define TWO_STATE 2 /* Two state error model */ -#define UNIFORM_RANGE 3 /* random bit errors over a certain range */ - -void print_help(const struct option *long_options, int num_opts, char* argv[]); - -int main(int argc, char *argv[]) -{ - int mode=0; - void *codec2; - FILE *fin; - FILE *fout; - FILE *fber = NULL; - short *buf; - unsigned char *bits; - float *softdec_bits; - char *bitperchar_bits; - int nsam, nbit, nbyte, i, byte, bits_proc, bit_errors, error_mode; - int nstart_bit, nend_bit, bit_rate; - int state, next_state; - float ber, r, burst_length, burst_period, burst_timer, ber_est; - unsigned char mask; - int natural, softdec, bit, ret, bitperchar; +#include "c2file.h" +#include "codec2.h" +#include "dump.h" + +#define NONE 0 /* no bit errors */ +#define UNIFORM 1 /* random bit errors */ +#define TWO_STATE 2 /* Two state error model */ +#define UNIFORM_RANGE 3 /* random bit errors over a certain range */ + +void print_help(const struct option *long_options, int num_opts, char *argv[]); + +int main(int argc, char *argv[]) { + int mode = 0; + void *codec2; + FILE *fin; + FILE *fout; + FILE *fber = NULL; + short *buf; + unsigned char *bits; + float *softdec_bits; + char *bitperchar_bits; + int nsam, nbit, nbyte, i, byte, bits_proc, bit_errors, error_mode; + int nstart_bit, nend_bit, bit_rate; + int state, next_state; + float ber, r, burst_length, burst_period, burst_timer, ber_est; + unsigned char mask; + int natural, softdec, bit, ret, bitperchar; #ifdef DUMP - int dump; + int dump; #endif - int report_energy; - FILE *f_ratek = NULL; - float *user_ratek; - int K; - - char* opt_string = "h:"; - struct option long_options[] = { - { "ber", required_argument, NULL, 0 }, - { "startbit", required_argument, NULL, 0 }, - { "endbit", required_argument, NULL, 0 }, - { "berfile", required_argument, NULL, 0 }, - { "natural", no_argument, &natural, 1 }, - { "softdec", no_argument, &softdec, 1 }, - { "bitperchar", no_argument, &bitperchar, 1 }, - #ifdef DUMP - { "dump", required_argument, &dump, 1 }, - #endif - { "energy", no_argument, NULL, 0 }, - { "mlfeat", required_argument, NULL, 0 }, - { "loadcb", required_argument, NULL, 0 }, - { "loadratek", required_argument, NULL, 0 }, - { "nopf", no_argument, NULL, 0 }, - { "help", no_argument, NULL, 'h' }, - { NULL, no_argument, NULL, 0 } - }; - int num_opts=sizeof(long_options)/sizeof(struct option); - - if (argc < 4) - print_help(long_options, num_opts, argv); - - if (strcmp(argv[2], "-") == 0) fin = stdin; - else if ( (fin = fopen(argv[2],"rb")) == NULL ) { - fprintf(stderr, "Error opening input bit file: %s: %s.\n", - argv[2], strerror(errno)); - exit(1); + int report_energy; + FILE *f_ratek = NULL; + float *user_ratek; + int K; + + char *opt_string = "h:"; + struct option long_options[] = {{"ber", required_argument, NULL, 0}, + {"startbit", required_argument, NULL, 0}, + {"endbit", required_argument, NULL, 0}, + {"berfile", required_argument, NULL, 0}, + {"natural", no_argument, &natural, 1}, + {"softdec", no_argument, &softdec, 1}, + {"bitperchar", no_argument, &bitperchar, 1}, +#ifdef DUMP + {"dump", required_argument, &dump, 1}, +#endif + {"energy", no_argument, NULL, 0}, + {"mlfeat", required_argument, NULL, 0}, + {"loadcb", required_argument, NULL, 0}, + {"loadratek", required_argument, NULL, 0}, + {"nopf", no_argument, NULL, 0}, + {"help", no_argument, NULL, 'h'}, + {NULL, no_argument, NULL, 0}}; + int num_opts = sizeof(long_options) / sizeof(struct option); + + if (argc < 4) print_help(long_options, num_opts, argv); + + if (strcmp(argv[2], "-") == 0) + fin = stdin; + else if ((fin = fopen(argv[2], "rb")) == NULL) { + fprintf(stderr, "Error opening input bit file: %s: %s.\n", argv[2], + strerror(errno)); + exit(1); + } + + if (strcmp(argv[3], "-") == 0) + fout = stdout; + else if ((fout = fopen(argv[3], "wb")) == NULL) { + fprintf(stderr, "Error opening output speech file: %s: %s.\n", argv[3], + strerror(errno)); + exit(1); + } + + // Attempt to detect a .c2 file with a header + struct c2_header in_hdr; + char *ext = strrchr(argv[2], '.'); + if ((ext != NULL) && (strcmp(ext, ".c2") == 0)) { + int nread = fread(&in_hdr, sizeof(in_hdr), 1, fin); + assert(nread == 1); + + if (memcmp(in_hdr.magic, c2_file_magic, sizeof(c2_file_magic)) == 0) { + fprintf(stderr, "Detected Codec2 file version %d.%d in mode %d\n", + in_hdr.version_major, in_hdr.version_minor, in_hdr.mode); + + mode = in_hdr.mode; + } else { + fprintf(stderr, "Codec2 file specified but no header detected\n"); + // Rewind the input file so we can try to decode + // based on command line mode selection + fseek(fin, 0, SEEK_SET); + } /* end if - magic detection */ + } else { + // If we got here, we need to honor the command line mode + if (strcmp(argv[1], "3200") == 0) + mode = CODEC2_MODE_3200; + else if (strcmp(argv[1], "2400") == 0) + mode = CODEC2_MODE_2400; + else if (strcmp(argv[1], "1600") == 0) + mode = CODEC2_MODE_1600; + else if (strcmp(argv[1], "1400") == 0) + mode = CODEC2_MODE_1400; + else if (strcmp(argv[1], "1300") == 0) + mode = CODEC2_MODE_1300; + else if (strcmp(argv[1], "1200") == 0) + mode = CODEC2_MODE_1200; + else if (strcmp(argv[1], "700C") == 0) + mode = CODEC2_MODE_700C; + else if (strcmp(argv[1], "450") == 0) + mode = CODEC2_MODE_450; + else if (strcmp(argv[1], "450PWB") == 0) + mode = CODEC2_MODE_450PWB; + else { + fprintf(stderr, + "Error in mode: %s. Must be 3200, 2400, 1600, 1400, 1300, 1200, " + "700C, 450, or 450PWB\n", + argv[1]); + exit(1); } + bit_rate = atoi(argv[1]); + }; /* end if - extension / header detection */ + + error_mode = NONE; + ber = 0.0; + burst_length = burst_period = 0.0; + burst_timer = 0.0; + natural = softdec = bitperchar = 0; + report_energy = 0; +#ifdef DUMP + dump = 0; +#endif - if (strcmp(argv[3], "-") == 0) fout = stdout; - else if ( (fout = fopen(argv[3],"wb")) == NULL ) { - fprintf(stderr, "Error opening output speech file: %s: %s.\n", - argv[3], strerror(errno)); - exit(1); - } + codec2 = codec2_create(mode); + assert(codec2 != NULL); + nsam = codec2_samples_per_frame(codec2); + nbit = codec2_bits_per_frame(codec2); + buf = (short *)malloc(nsam * sizeof(short)); + nbyte = (nbit + 7) / 8; + bits = (unsigned char *)malloc(nbyte * sizeof(char)); + softdec_bits = (float *)malloc(nbit * sizeof(float)); + bitperchar_bits = (char *)malloc(nbit * sizeof(char)); + bit_errors = bits_proc = 0; + nstart_bit = 0; + nend_bit = nbit - 1; + + while (1) { + int option_index = 0; + int opt = getopt_long(argc, argv, opt_string, long_options, &option_index); + if (opt == -1) break; + + switch (opt) { + case 0: + if (strcmp(long_options[option_index].name, "ber") == 0) { + ber = atof(optarg); + error_mode = UNIFORM; + } else if (strcmp(long_options[option_index].name, "startbit") == 0) { + nstart_bit = atoi(optarg); + } else if (strcmp(long_options[option_index].name, "endbit") == 0) { + nend_bit = atoi(optarg); + } else if (strcmp(long_options[option_index].name, "berfile") == 0) { + if ((fber = fopen(optarg, "wt")) == NULL) { + fprintf(stderr, "Error opening BER file: %s %s.\n", optarg, + strerror(errno)); + exit(1); + } - // Attempt to detect a .c2 file with a header - struct c2_header in_hdr; - char *ext = strrchr(argv[2], '.'); - if ((ext != NULL) && (strcmp(ext, ".c2") == 0)) { - int nread = fread(&in_hdr,sizeof(in_hdr),1,fin); - assert (nread == 1); - - if (memcmp(in_hdr.magic, c2_file_magic, sizeof(c2_file_magic)) == 0) { - fprintf(stderr, "Detected Codec2 file version %d.%d in mode %d\n", - in_hdr.version_major, - in_hdr.version_minor, - in_hdr.mode); - - mode = in_hdr.mode; - } else { - fprintf(stderr, "Codec2 file specified but no header detected\n"); - // Rewind the input file so we can try to decode - // based on command line mode selection - fseek(fin,0,SEEK_SET); - } /* end if - magic detection */ - } else { - // If we got here, we need to honor the command line mode - if (strcmp(argv[1],"3200") == 0) - mode = CODEC2_MODE_3200; - else if (strcmp(argv[1],"2400") == 0) - mode = CODEC2_MODE_2400; - else if (strcmp(argv[1],"1600") == 0) - mode = CODEC2_MODE_1600; - else if (strcmp(argv[1],"1400") == 0) - mode = CODEC2_MODE_1400; - else if (strcmp(argv[1],"1300") == 0) - mode = CODEC2_MODE_1300; - else if (strcmp(argv[1],"1200") == 0) - mode = CODEC2_MODE_1200; - else if (strcmp(argv[1],"700C") == 0) - mode = CODEC2_MODE_700C; - else if (strcmp(argv[1],"450") == 0) - mode = CODEC2_MODE_450; - else if (strcmp(argv[1],"450PWB") == 0) - mode = CODEC2_MODE_450PWB; - else { - fprintf(stderr, "Error in mode: %s. Must be 3200, 2400, 1600, 1400, 1300, 1200, 700C, 450, or 450PWB\n", argv[1]); - exit(1); } - bit_rate = atoi(argv[1]); - }; /* end if - extension / header detection */ - - error_mode = NONE; - ber = 0.0; - burst_length = burst_period = 0.0; - burst_timer = 0.0; - natural = softdec = bitperchar = 0; - report_energy = 0; #ifdef DUMP - dump = 0; + else if (strcmp(long_options[option_index].name, "dump") == 0) { + if (dump) dump_on(optarg); + } #endif + else if (strcmp(long_options[option_index].name, "energy") == 0) { + report_energy = 1; + } else if (strcmp(long_options[option_index].name, "loadcb") == 0) { + /* load VQ stage (700C only) */ + // fprintf(stderr, "%s\n", optarg+1); + codec2_load_codebook(codec2, atoi(optarg) - 1, argv[optind]); + } else if (strcmp(long_options[option_index].name, "loadratek") == 0) { + /* load rate K vectors (by passing quantisation) for 700C VQ tests */ + fprintf(stderr, "%s\n", optarg); + f_ratek = fopen(optarg, "rb"); + assert(f_ratek != NULL); + user_ratek = codec2_enable_user_ratek(codec2, &K); + } else if (strcmp(long_options[option_index].name, "nopf") == 0) { + codec2_700c_post_filter(codec2, 0); + } else if (strcmp(long_options[option_index].name, "mlfeat") == 0) { + /* dump machine learning features (700C only) */ + codec2_open_mlfeat(codec2, optarg, NULL); + } + break; - codec2 = codec2_create(mode); - assert(codec2 != NULL); - nsam = codec2_samples_per_frame(codec2); - nbit = codec2_bits_per_frame(codec2); - buf = (short*)malloc(nsam*sizeof(short)); - nbyte = (nbit + 7) / 8; - bits = (unsigned char*)malloc(nbyte*sizeof(char)); - softdec_bits = (float*)malloc(nbit*sizeof(float)); - bitperchar_bits = (char*)malloc(nbit*sizeof(char)); - bit_errors = bits_proc = 0; - nstart_bit = 0; - nend_bit = nbit-1; - - while(1) { - int option_index = 0; - int opt = getopt_long(argc, argv, opt_string, - long_options, &option_index); - if (opt == -1) - break; - - switch (opt) { - case 0: - if(strcmp(long_options[option_index].name, "ber") == 0) { - ber = atof(optarg); - error_mode = UNIFORM; - } else if(strcmp(long_options[option_index].name, "startbit") == 0) { - nstart_bit = atoi(optarg); - } else if(strcmp(long_options[option_index].name, "endbit") == 0) { - nend_bit = atoi(optarg); - } else if(strcmp(long_options[option_index].name, "berfile") == 0) { - if ((fber = fopen(optarg,"wt")) == NULL) { - fprintf(stderr, "Error opening BER file: %s %s.\n", - optarg, strerror(errno)); - exit(1); - } + case 'h': + print_help(long_options, num_opts, argv); + break; - } - #ifdef DUMP - else if(strcmp(long_options[option_index].name, "dump") == 0) { - if (dump) - dump_on(optarg); - } - #endif - else if (strcmp(long_options[option_index].name, "energy") == 0) { - report_energy = 1; - } - else if (strcmp(long_options[option_index].name, "loadcb") == 0) { - /* load VQ stage (700C only) */ - //fprintf(stderr, "%s\n", optarg+1); - codec2_load_codebook(codec2, atoi(optarg)-1, argv[optind]); - } - else if (strcmp(long_options[option_index].name, "loadratek") == 0) { - /* load rate K vectors (by passing quantisation) for 700C VQ tests */ - fprintf(stderr, "%s\n", optarg); - f_ratek = fopen(optarg, "rb"); - assert(f_ratek != NULL); - user_ratek = codec2_enable_user_ratek(codec2, &K); - } - else if (strcmp(long_options[option_index].name, "nopf") == 0) { - codec2_700c_post_filter(codec2, 0); - } - else if (strcmp(long_options[option_index].name, "mlfeat") == 0) { - /* dump machine learning features (700C only) */ - codec2_open_mlfeat(codec2, optarg, NULL); - } - break; - - case 'h': - print_help(long_options, num_opts, argv); - break; - - default: - /* This will never be reached */ - break; + default: + /* This will never be reached */ + break; + } + } + assert(nend_bit <= nbit); + codec2_set_natural_or_gray(codec2, !natural); + // printf("%d %d\n", nstart_bit, nend_bit); + + // fprintf(stderr, "softdec: %d natural: %d\n", softdec, natural); + if (softdec) { + ret = (fread(softdec_bits, sizeof(float), nbit, fin) == (size_t)nbit); + } + if (bitperchar) { + ret = (fread(bitperchar_bits, sizeof(char), nbit, fin) == (size_t)nbit); + } + if (!softdec && !bitperchar) { + ret = (fread(bits, sizeof(char), nbyte, fin) == (size_t)nbyte); + } + + while (ret) { + // apply bit errors, MSB of byte 0 is bit 0 in frame, only works in packed + // mode + + if ((error_mode == UNIFORM) || (error_mode == UNIFORM_RANGE)) { + assert(softdec == 0); + for (i = nstart_bit; i < nend_bit + 1; i++) { + r = (float)rand() / RAND_MAX; + if (r < ber) { + byte = i / 8; + // printf("nbyte %d nbit %d i %d byte %d bits[%d] 0x%0x ", nbyte, + // nbit, i, byte, byte, bits[byte]); + mask = 1 << (7 - i + byte * 8); + bits[byte] ^= mask; + // printf("shift: %d mask: 0x%0x bits[%d] 0x%0x\n", 7 - i + byte*8, + // mask, byte, bits[byte] ); + bit_errors++; } + bits_proc++; + } } - assert(nend_bit <= nbit); - codec2_set_natural_or_gray(codec2, !natural); - //printf("%d %d\n", nstart_bit, nend_bit); - //fprintf(stderr, "softdec: %d natural: %d\n", softdec, natural); - if (softdec) { - ret = (fread(softdec_bits, sizeof(float), nbit, fin) == (size_t)nbit); - } - if (bitperchar) { - ret = (fread(bitperchar_bits, sizeof(char), nbit, fin) == (size_t)nbit); - } - if (!softdec && !bitperchar) { - ret = (fread(bits, sizeof(char), nbyte, fin) == (size_t)nbyte); - } + if (error_mode == TWO_STATE) { + assert(softdec == 0); + burst_timer += (float)nbit / bit_rate; + fprintf(stderr, "burst_timer: %f state: %d\n", burst_timer, state); - while(ret) { - // apply bit errors, MSB of byte 0 is bit 0 in frame, only works in packed mode - - if ((error_mode == UNIFORM) || (error_mode == UNIFORM_RANGE)) { - assert(softdec == 0); - for(i=nstart_bit; i<nend_bit+1; i++) { - r = (float)rand()/RAND_MAX; - if (r < ber) { - byte = i/8; - //printf("nbyte %d nbit %d i %d byte %d bits[%d] 0x%0x ", nbyte, nbit, i, byte, byte, bits[byte]); - mask = 1 << (7 - i + byte*8); - bits[byte] ^= mask; - //printf("shift: %d mask: 0x%0x bits[%d] 0x%0x\n", 7 - i + byte*8, mask, byte, bits[byte] ); - bit_errors++; - } - bits_proc++; - } - } - - if (error_mode == TWO_STATE) { - assert(softdec == 0); - burst_timer += (float)nbit/bit_rate; - fprintf(stderr, "burst_timer: %f state: %d\n", burst_timer, state); - - next_state = state; - switch(state) { - case 0: - - /* clear channel state - no bit errors */ - - if (burst_timer > (burst_period - burst_length)) - next_state = 1; - break; - - case 1: - - /* burst error state - 50% bit error rate */ - - for(i=nstart_bit; i<nend_bit+1; i++) { - r = (float)rand()/RAND_MAX; - if (r < 0.5) { - byte = i/8; - bits[byte] ^= 1 << (7 - i + byte*8); - bit_errors++; - } - bits_proc++; - } - - if (burst_timer > burst_period) { - burst_timer = 0.0; - next_state = 0; - } - break; - - } - - state = next_state; - } + next_state = state; + switch (state) { + case 0: - if (fber != NULL) { - if (fread(&ber_est, sizeof(float), 1, fber) != 1) { - fprintf(stderr, "ran out of BER estimates!\n"); - exit(1); - } - //fprintf(stderr, "ber_est: %f\n", ber_est); - } - else - ber_est = 0.0; - - if (softdec) { - /* pack bits, MSB received first */ - - bit = 7; byte = 0; - memset(bits, 0, nbyte); - for(i=0; i<nbit; i++) { - bits[byte] |= ((softdec_bits[i] < 0.0) << bit); - bit--; - if (bit < 0) { - bit = 7; - byte++; - } - } - codec2_set_softdec(codec2, softdec_bits); - } + /* clear channel state - no bit errors */ - if (bitperchar) { - /* pack bits, MSB received first */ - - bit = 7; byte = 0; - memset(bits, 0, nbyte); - for(i=0; i<nbit; i++) { - bits[byte] |= bitperchar_bits[i] << bit; - bit--; - if (bit < 0) { - bit = 7; - byte++; - } - } - } + if (burst_timer > (burst_period - burst_length)) next_state = 1; + break; - if (report_energy) - fprintf(stderr, "Energy: %1.3f\n", codec2_get_energy(codec2, bits)); + case 1: - if (f_ratek != NULL) - ret = fread(user_ratek, sizeof(float), K, f_ratek); - - codec2_decode_ber(codec2, buf, bits, ber_est); - fwrite(buf, sizeof(short), nsam, fout); + /* burst error state - 50% bit error rate */ - //if this is in a pipeline, we probably don't want the usual - //buffering to occur + for (i = nstart_bit; i < nend_bit + 1; i++) { + r = (float)rand() / RAND_MAX; + if (r < 0.5) { + byte = i / 8; + bits[byte] ^= 1 << (7 - i + byte * 8); + bit_errors++; + } + bits_proc++; + } - if (fout == stdout) fflush(stdout); + if (burst_timer > burst_period) { + burst_timer = 0.0; + next_state = 0; + } + break; + } - if (softdec) { - ret = (fread(softdec_bits, sizeof(float), nbit, fin) == (size_t)nbit); - } - if (bitperchar) { - ret = (fread(bitperchar_bits, sizeof(char), nbit, fin) == (size_t)nbit); + state = next_state; + } + + if (fber != NULL) { + if (fread(&ber_est, sizeof(float), 1, fber) != 1) { + fprintf(stderr, "ran out of BER estimates!\n"); + exit(1); + } + // fprintf(stderr, "ber_est: %f\n", ber_est); + } else + ber_est = 0.0; + + if (softdec) { + /* pack bits, MSB received first */ + + bit = 7; + byte = 0; + memset(bits, 0, nbyte); + for (i = 0; i < nbit; i++) { + bits[byte] |= ((softdec_bits[i] < 0.0) << bit); + bit--; + if (bit < 0) { + bit = 7; + byte++; } - if (!softdec && !bitperchar) { - ret = (fread(bits, sizeof(char), nbyte, fin) == (size_t)nbyte); + } + codec2_set_softdec(codec2, softdec_bits); + } + + if (bitperchar) { + /* pack bits, MSB received first */ + + bit = 7; + byte = 0; + memset(bits, 0, nbyte); + for (i = 0; i < nbit; i++) { + bits[byte] |= bitperchar_bits[i] << bit; + bit--; + if (bit < 0) { + bit = 7; + byte++; } + } } - if (error_mode) - fprintf(stderr, "actual BER: %1.3f\n", (float)bit_errors/bits_proc); + if (report_energy) + fprintf(stderr, "Energy: %1.3f\n", codec2_get_energy(codec2, bits)); - codec2_destroy(codec2); + if (f_ratek != NULL) ret = fread(user_ratek, sizeof(float), K, f_ratek); - free(buf); - free(bits); - free(softdec_bits); - free(bitperchar_bits); - fclose(fin); - fclose(fout); - if (fber != NULL) { - fclose(fber); + codec2_decode_ber(codec2, buf, bits, ber_est); + fwrite(buf, sizeof(short), nsam, fout); + + // if this is in a pipeline, we probably don't want the usual + // buffering to occur + + if (fout == stdout) fflush(stdout); + + if (softdec) { + ret = (fread(softdec_bits, sizeof(float), nbit, fin) == (size_t)nbit); } + if (bitperchar) { + ret = (fread(bitperchar_bits, sizeof(char), nbit, fin) == (size_t)nbit); + } + if (!softdec && !bitperchar) { + ret = (fread(bits, sizeof(char), nbyte, fin) == (size_t)nbyte); + } + } + + if (error_mode) + fprintf(stderr, "actual BER: %1.3f\n", (float)bit_errors / bits_proc); - return 0; + codec2_destroy(codec2); + + free(buf); + free(bits); + free(softdec_bits); + free(bitperchar_bits); + fclose(fin); + fclose(fout); + if (fber != NULL) { + fclose(fber); + } + + return 0; } -void print_help(const struct option* long_options, int num_opts, char* argv[]) -{ - int i; - char *option_parameters; - fprintf(stderr, "\nc2dec - Codec 2 decoder and bit error simulation program\n" - "usage: %s 3200|2400|1600|1400|1300|1200|700C|450|450PWB InputFile OutputRawFile [OPTIONS]\n\n" - "Options:\n", argv[0]); - for(i=0; i<num_opts-1; i++) { - if(long_options[i].has_arg == no_argument) { - option_parameters=""; - } else if (strcmp("ber", long_options[i].name) == 0) { - option_parameters = " BER"; - } else if (strcmp("startbit", long_options[i].name) == 0) { - option_parameters = " startBit"; - } else if (strcmp("endbit", long_options[i].name) == 0) { - option_parameters = " endBit"; - } else if (strcmp("berfile", long_options[i].name) == 0) { - option_parameters = " berFileName"; - } else if (strcmp("dump", long_options[i].name) == 0) { - option_parameters = " dumpFilePrefix"; - } else if (strcmp("lspEWov", long_options[i].name) == 0) { - option_parameters = " featureFileName"; - } else { - option_parameters = " <UNDOCUMENTED parameter>"; - } - fprintf(stderr, "\t--%s%s\n", long_options[i].name, option_parameters); - } - exit(1); +void print_help(const struct option *long_options, int num_opts, char *argv[]) { + int i; + char *option_parameters; + fprintf(stderr, + "\nc2dec - Codec 2 decoder and bit error simulation program\n" + "usage: %s 3200|2400|1600|1400|1300|1200|700C|450|450PWB InputFile " + "OutputRawFile [OPTIONS]\n\n" + "Options:\n", + argv[0]); + for (i = 0; i < num_opts - 1; i++) { + if (long_options[i].has_arg == no_argument) { + option_parameters = ""; + } else if (strcmp("ber", long_options[i].name) == 0) { + option_parameters = " BER"; + } else if (strcmp("startbit", long_options[i].name) == 0) { + option_parameters = " startBit"; + } else if (strcmp("endbit", long_options[i].name) == 0) { + option_parameters = " endBit"; + } else if (strcmp("berfile", long_options[i].name) == 0) { + option_parameters = " berFileName"; + } else if (strcmp("dump", long_options[i].name) == 0) { + option_parameters = " dumpFilePrefix"; + } else if (strcmp("lspEWov", long_options[i].name) == 0) { + option_parameters = " featureFileName"; + } else { + option_parameters = " <UNDOCUMENTED parameter>"; + } + fprintf(stderr, "\t--%s%s\n", long_options[i].name, option_parameters); + } + exit(1); } |