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rtl_fm: fix buffer dump bug

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Signed-off-by: Steve Markgraf <steve@steve-m.de>
This commit is contained in:
Kyle Keen 2013-08-29 13:40:42 -04:00 committed by Steve Markgraf
parent a6d7fff9ca
commit 31cef2ef55
1 changed files with 6 additions and 2 deletions
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8
src/rtl_fm.c
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@ -70,6 +70,7 @@
#define MAXIMUM_OVERSAMPLE 16 #define MAXIMUM_OVERSAMPLE 16
#define MAXIMUM_BUF_LENGTH (MAXIMUM_OVERSAMPLE * DEFAULT_BUF_LENGTH) #define MAXIMUM_BUF_LENGTH (MAXIMUM_OVERSAMPLE * DEFAULT_BUF_LENGTH)
#define AUTO_GAIN -100 #define AUTO_GAIN -100
#define BUFFER_DUMP 4096
#define FREQUENCIES_LIMIT 1000 #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) 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); pthread_rwlock_wrlock(&data_rw);
rotate_90(fm->buf, fm->buf_len); rotate_90(fm->buf, fm->buf_len);
if (fm->fir_enable) { if (fm->fir_enable) {
@ -629,7 +631,9 @@ void full_demod(struct fm_state *fm)
fm->squelch_hits = fm->conseq_squelch + 1; /* hair trigger */ fm->squelch_hits = fm->conseq_squelch + 1; /* hair trigger */
/* wait for settling and flush buffer */ /* wait for settling and flush buffer */
usleep(5000); 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");}
} }
} }