diff options
Diffstat (limited to 'src/rtl_fm.c')
| -rw-r--r-- | src/rtl_fm.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/src/rtl_fm.c b/src/rtl_fm.c index 420655c..0d23fdc 100644 --- a/src/rtl_fm.c +++ b/src/rtl_fm.c @@ -70,6 +70,7 @@ #define MAXIMUM_OVERSAMPLE 16 #define MAXIMUM_BUF_LENGTH (MAXIMUM_OVERSAMPLE * DEFAULT_BUF_LENGTH) #define AUTO_GAIN -100 +#define BUFFER_DUMP 4096 #define FREQUENCIES_LIMIT 1000 @@ -587,7 +588,8 @@ static void optimal_settings(struct fm_state *fm, int freq, int hopping) void full_demod(struct fm_state *fm) { - int i, sr, freq_next, hop = 0; + uint8_t dump[BUFFER_DUMP]; + int i, sr, freq_next, n_read, hop = 0; pthread_rwlock_wrlock(&data_rw); rotate_90(fm->buf, fm->buf_len); if (fm->fir_enable) { @@ -629,7 +631,9 @@ void full_demod(struct fm_state *fm) fm->squelch_hits = fm->conseq_squelch + 1; /* hair trigger */ /* wait for settling and flush buffer */ usleep(5000); - rtlsdr_read_sync(dev, NULL, 4096, NULL); + rtlsdr_read_sync(dev, &dump, BUFFER_DUMP, &n_read); + if (n_read != BUFFER_DUMP) { + fprintf(stderr, "Error: bad retune.\n");} } } |