Kernel: Extract SrsPps to kernel

trunk/src/kernel/srs_kernel_kbps.cpp

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+/**
+ * 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.
+ */
+
+#include <srs_kernel_kbps.hpp>
+
+#include <srs_kernel_utility.hpp>
+
+SrsRateSample::SrsRateSample()
+{
+    total = time = -1;
+    rate = 0;
+}
+
+SrsRateSample::~SrsRateSample()
+{
+}
+
+SrsRateSample* SrsRateSample::update(int64_t nn, srs_utime_t t, int k)
+{
+    total = nn;
+    time = t;
+    rate = k;
+    return this;
+}
+
+void srs_pps_init(SrsRateSample& sample, int64_t nn, srs_utime_t now)
+{
+    if (sample.time < 0 || nn < sample.total) {
+        sample.update(nn, now, 0);
+    }
+}
+
+void srs_pps_update(SrsRateSample& sample, int64_t nn, srs_utime_t now)
+{
+    int pps = (int)((nn - sample.total) * 1000 / srsu2ms(now - sample.time));
+    if (pps == 0 && nn > sample.total) {
+        pps = 1; // For pps in (0, 1), we set to 1.
+    }
+    sample.update(nn, now, pps);
+}
+
+SrsPps::SrsPps(SrsWallClock* c)
+{
+    clk_ = c;
+    sugar = 0;
+}
+
+SrsPps::~SrsPps()
+{
+}
+
+void SrsPps::update()
+{
+    update(sugar);
+}
+
+void SrsPps::update(int64_t nn)
+{
+    srs_utime_t now = clk_->now();
+
+    srs_pps_init(sample_10s_, nn, now);
+    srs_pps_init(sample_30s_, nn, now);
+    srs_pps_init(sample_1m_, nn, now);
+    srs_pps_init(sample_5m_, nn, now);
+    srs_pps_init(sample_60m_, nn, now);
+
+    if (now - sample_10s_.time >= 10 * SRS_UTIME_SECONDS) {
+        srs_pps_update(sample_10s_, nn, now);
+    }
+    if (now - sample_30s_.time >= 30 * SRS_UTIME_SECONDS) {
+        srs_pps_update(sample_30s_, nn, now);
+    }
+    if (now - sample_1m_.time >= 60 * SRS_UTIME_SECONDS) {
+        srs_pps_update(sample_1m_, nn, now);
+    }
+    if (now - sample_5m_.time >= 300 * SRS_UTIME_SECONDS) {
+        srs_pps_update(sample_5m_, nn, now);
+    }
+    if (now - sample_60m_.time >= 3600 * SRS_UTIME_SECONDS) {
+        srs_pps_update(sample_60m_, nn, now);
+    }
+}
+
+int SrsPps::r10s()
+{
+    return sample_10s_.rate;
+}
+
+SrsWallClock::SrsWallClock()
+{
+}
+
+SrsWallClock::~SrsWallClock()
+{
+}
+
+srs_utime_t SrsWallClock::now()
+{
+    return srs_get_system_time();
+}
+
+SrsWallClock* _srs_clock = new SrsWallClock();
+