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diff --git a/include/osmocom/gapk/benchmark.h b/include/osmocom/gapk/benchmark.h
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+/*
+ * This file is part of gapk (GSM Audio Pocket Knife).
+ *
+ * gapk is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * gapk 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with gapk. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * (C) 2014 Harald Welte <laforge@gnumonks.org>
+ */
+
+#pragma once
+
+#include <osmocom/gapk/get_cycles.h>
+#include <osmocom/gapk/codecs.h>
+
+#define OSMO_GAPK_CYCLES_NUM_AVG 102400
+
+struct osmo_gapk_bench_cycles {
+ cycles_t enc[OSMO_GAPK_CYCLES_NUM_AVG];
+ unsigned int enc_used;
+ cycles_t dec[OSMO_GAPK_CYCLES_NUM_AVG];
+ unsigned int dec_used;
+};
+
+extern struct osmo_gapk_bench_cycles *osmo_gapk_bench_codec[_CODEC_MAX];
+
+int osmo_gapk_bench_enable(enum osmo_gapk_codec_type codec);
+void osmo_gapk_bench_free(void);
+
+unsigned long long
+osmo_gapk_bench_get_cycles(enum osmo_gapk_codec_type codec, int enc);
+unsigned int
+osmo_gapk_bench_get_frames(enum osmo_gapk_codec_type codec, int enc);