Kernel: Extract SrsPps to kernel

trunk/src/kernel/srs_kernel_kbps.hpp

@@ -0,0 +1,93 @@
+/**
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2013-2020 Winlin
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef SRS_KERNEL_KBPS_HPP
+#define SRS_KERNEL_KBPS_HPP
+
+#include <srs_core.hpp>
+
+#include <srs_kernel_kbps.hpp>
+
+class SrsWallClock;
+
+// A sample for rate-based stat, such as kbps or kps.
+class SrsRateSample
+{
+public:
+    int64_t total;
+    srs_utime_t time;
+    // kbps or kps
+    int rate;
+public:
+    SrsRateSample();
+    virtual ~SrsRateSample();
+public:
+    virtual SrsRateSample* update(int64_t nn, srs_utime_t t, int k);
+};
+
+// A pps manager every some duration.
+class SrsPps
+{
+private:
+    SrsWallClock* clk_;
+private:
+    // samples
+    SrsRateSample sample_10s_;
+    SrsRateSample sample_30s_;
+    SrsRateSample sample_1m_;
+    SrsRateSample sample_5m_;
+    SrsRateSample sample_60m_;
+public:
+    // Sugar for target to stat.
+    int64_t sugar;
+public:
+    SrsPps(SrsWallClock* clk);
+    virtual ~SrsPps();
+public:
+    // Update with the nn which is target.
+    void update();
+    // Update with the nn.
+    void update(int64_t nn);
+    // Get the 10s average stat.
+    int r10s();
+};
+
+/**
+ * A time source to provide wall clock.
+ */
+class SrsWallClock
+{
+public:
+    SrsWallClock();
+    virtual ~SrsWallClock();
+public:
+    /**
+     * Current time in srs_utime_t.
+     */
+    virtual srs_utime_t now();
+};
+
+// The global clock.
+extern SrsWallClock* _srs_clock;
+
+#endif