Changed maximum number of channels to 64.
Added a round-robbin frequency assignment from the command line so that every frequency need not be specified on the command line. For example, -c 6 -F 100:200:250 will result frequencies for the 6 channels to be set identically as if the command was -c 6 -F 100:200:250:100:200:250 --- bat/bat.c | 37 ++++++++++++++++++++++++++----------- bat/common.h | 2 +- 2 files changed, 27 insertions(+), 12 deletions(-)
diff --git a/bat/bat.c b/bat/bat.c index 086b9fa..9c046e6 100644 --- a/bat/bat.c +++ b/bat/bat.c @@ -73,16 +73,30 @@ err_exit:
static void get_sine_frequencies(struct bat *bat, char *freq) { - char *tmp1; - - tmp1 = strchr(freq, ':'); - if (tmp1 == NULL) { - bat->target_freq[1] = bat->target_freq[0] = atof(optarg); - } else { - *tmp1 = '\0'; - bat->target_freq[0] = atof(optarg); - bat->target_freq[1] = atof(tmp1 + 1); + char *tmp0, *tmp1; + int ncolons; + int nfreqs; + int i; + ncolons = 0; + tmp1 = freq; + while ((tmp1 = strchr(tmp1, ':'))) { + tmp1++; + ncolons ++; + } + nfreqs = ncolons+1; + + tmp0 = freq; + tmp1 = strchr(tmp0, ':'); + for (i = 0; i < MAX_CHANNELS && i < nfreqs; i++) { + if (i+1 < nfreqs) + *tmp1 = '\0'; + bat->target_freq[i] = atof(tmp0); + tmp0 = tmp1+1; + if (i+1 < nfreqs) + tmp1 = strchr(tmp0, ':'); } + for (i = nfreqs; i < MAX_CHANNELS; i++) + bat->target_freq[i] = bat->target_freq[i % nfreqs]; }
static void get_format(struct bat *bat, char *optarg) @@ -302,6 +316,7 @@ _("Usage: bat [-options]...\n"
static void set_defaults(struct bat *bat) { + int i; memset(bat, 0, sizeof(struct bat));
/* Set default values */ @@ -313,8 +328,8 @@ static void set_defaults(struct bat *bat) bat->convert_float_to_sample = convert_float_to_int16; bat->convert_sample_to_double = convert_int16_to_double; bat->frames = bat->rate * 2; - bat->target_freq[0] = 997.0; - bat->target_freq[1] = 997.0; + for (i = 0; i < MAX_CHANNELS; i++) + bat->target_freq[i] = 997.0; bat->sigma_k = 3.0; bat->playback.device = NULL; bat->capture.device = NULL; diff --git a/bat/common.h b/bat/common.h index c04452d..6d5e46e 100644 --- a/bat/common.h +++ b/bat/common.h @@ -30,7 +30,7 @@ #define WAV_DATA COMPOSE('d', 'a', 't', 'a') #define WAV_FORMAT_PCM 1 /* PCM WAVE file encoding */
-#define MAX_CHANNELS 2 +#define MAX_CHANNELS 64 #define MIN_CHANNELS 1 #define MAX_PEAKS 10 #define MAX_FRAMES (10 * 1024 * 1024)