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Diffstat (limited to 'gsm-tvoid/src/lib/gsm_burst_cf.cc')
-rwxr-xr-xgsm-tvoid/src/lib/gsm_burst_cf.cc10
1 files changed, 6 insertions, 4 deletions
diff --git a/gsm-tvoid/src/lib/gsm_burst_cf.cc b/gsm-tvoid/src/lib/gsm_burst_cf.cc
index 821b41f..df182a6 100755
--- a/gsm-tvoid/src/lib/gsm_burst_cf.cc
+++ b/gsm-tvoid/src/lib/gsm_burst_cf.cc
@@ -16,7 +16,7 @@ gsm_burst_cf_sptr gsm_make_burst_cf (gr_feval_ll *t,float sample_rate)
static const int MIN_IN = 1; // minimum number of input streams
static const int MAX_IN = 1; // maximum number of input streams
-static const int MIN_OUT = 1; // minimum number of output streams
+static const int MIN_OUT = 0; // minimum number of output streams
static const int MAX_OUT = 1; // maximum number of output streams
gsm_burst_cf::gsm_burst_cf (gr_feval_ll *t, float sample_rate) :
@@ -103,9 +103,11 @@ int gsm_burst_cf::general_work (int noutput_items,
else if (b >= 2 * MAX_CORR_DIST)
b = 2 * MAX_CORR_DIST - 1;
- memcpy(out+rval*USEFUL_BITS, d_burst_buffer + b, USEFUL_BITS*sizeof(float));
- rval++;
-
+ if (out) {
+ memcpy(out+rval*USEFUL_BITS, d_burst_buffer + b, USEFUL_BITS*sizeof(float));
+ rval++;
+ }
+
switch ( d_clock_options & QB_MASK ) {
case QB_QUARTER: //extra 1/4 bit each burst
d_mu -= d_relative_sample_rate / 4.0;
personal git repositories of Harald Welte. Your mileage may vary