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-rw-r--r--polyp/polyplib-stream.c44
1 files changed, 21 insertions, 23 deletions
diff --git a/polyp/polyplib-stream.c b/polyp/polyplib-stream.c
index c8fef673..286702b2 100644
--- a/polyp/polyplib-stream.c
+++ b/polyp/polyplib-stream.c
@@ -687,6 +687,24 @@ pa_usec_t pa_stream_get_time(struct pa_stream *s, const struct pa_latency_info *
return usec;
}
+static pa_usec_t time_counter_diff(struct pa_stream *s, pa_usec_t t, pa_usec_t c, int *negative) {
+ assert(s);
+
+ if (negative)
+ *negative = 0;
+
+ if (c < t) {
+ if (s->direction == PA_STREAM_RECORD) {
+ if (negative)
+ *negative = 1;
+
+ return t-c;
+ } else
+ return 0;
+ } else
+ return c-t;
+}
+
pa_usec_t pa_stream_get_latency(struct pa_stream *s, const struct pa_latency_info *i, int *negative) {
pa_usec_t t, c;
assert(s && i);
@@ -694,18 +712,7 @@ pa_usec_t pa_stream_get_latency(struct pa_stream *s, const struct pa_latency_inf
t = pa_stream_get_time(s, i);
c = pa_bytes_to_usec(s->counter, &s->sample_spec);
- if (t <= c) {
- if (negative)
- *negative = 1;
-
- return c-t;
- } else {
- if (negative)
- *negative = 0;
- return t-c;
- }
-
- return 0;
+ return time_counter_diff(s, t, c, negative);
}
const struct pa_sample_spec* pa_stream_get_sample_spec(struct pa_stream *s) {
@@ -749,15 +756,6 @@ pa_usec_t pa_stream_get_interpolated_latency(struct pa_stream *s, int *negative)
t = pa_stream_get_interpolated_time(s);
c = pa_bytes_to_usec(s->counter, &s->sample_spec);
-
- if (t <= c) {
- if (negative)
- *negative = 1;
-
- return c-t;
- } else {
- if (negative)
- *negative = 0;
- return t-c;
- }
+
+ return time_counter_diff(s, t, c, negative);
}