1 files changed, 57 insertions, 0 deletions
diff --git a/src/pulsecore/time-smoother.h b/src/pulsecore/time-smoother.h
new file mode 100644
index 0000000..49ae08c
--- /dev/null
+++ b/src/pulsecore/time-smoother.h
@@ -0,0 +1,57 @@
+#ifndef foopulsetimesmootherhfoo
+#define foopulsetimesmootherhfoo
+
+/***
+  This file is part of PulseAudio.
+
+  Copyright 2007 Lennart Poettering
+
+  PulseAudio is free software; you can redistribute it and/or modify
+  it under the terms of the GNU Lesser General Public License as
+  published by the Free Software Foundation; either version 2.1 of the
+  License, or (at your option) any later version.
+
+  PulseAudio is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <pulsecore/macro.h>
+#include <pulse/sample.h>
+
+typedef struct pa_smoother pa_smoother;
+
+pa_smoother* pa_smoother_new(
+        pa_usec_t x_adjust_time,
+        pa_usec_t x_history_time,
+        bool monotonic,
+        bool smoothing,
+        unsigned min_history,
+        pa_usec_t x_offset,
+        bool paused);
+
+void pa_smoother_free(pa_smoother* s);
+
+/* Adds a new value to our dataset. x = local/system time, y = remote time */
+void pa_smoother_put(pa_smoother *s, pa_usec_t x, pa_usec_t y);
+
+/* Returns an interpolated value based on the dataset. x = local/system time, return value = remote time */
+pa_usec_t pa_smoother_get(pa_smoother *s, pa_usec_t x);
+
+/* Translates a time span from the remote time domain to the local one. x = local/system time when to estimate, y_delay = remote time span */
+pa_usec_t pa_smoother_translate(pa_smoother *s, pa_usec_t x, pa_usec_t y_delay);
+
+void pa_smoother_set_time_offset(pa_smoother *s, pa_usec_t x_offset);
+
+void pa_smoother_pause(pa_smoother *s, pa_usec_t x);
+void pa_smoother_resume(pa_smoother *s, pa_usec_t x, bool abrupt);
+
+void pa_smoother_reset(pa_smoother *s, pa_usec_t time_offset, bool paused);
+
+void pa_smoother_fix_now(pa_smoother *s);
+
+#endif