no commit message

2020-09-17 18:40:01 +08:00
parent 4382915d09
commit d957abceaa
283 changed files with 86935 additions and 63 deletions
@@ -0,0 +1,86 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+ package org.mangui.osmf.plugins.traits {
+    import org.mangui.hls.HLS;
+    import org.mangui.hls.event.HLSEvent;
+    import org.osmf.traits.DynamicStreamTrait;
+    import org.osmf.utils.OSMFStrings;
+
+    CONFIG::LOGGING {
+    import org.mangui.hls.utils.Log;
+    }
+
+    public class HLSDynamicStreamTrait extends DynamicStreamTrait {
+        private var _hls : HLS;
+
+        public function HLSDynamicStreamTrait(hls : HLS) {
+            CONFIG::LOGGING {
+            Log.debug("HLSDynamicStreamTrait()");
+            }
+            _hls = hls;
+            _hls.addEventListener(HLSEvent.LEVEL_SWITCH, _levelSwitchHandler);
+            super(true, _hls.startLevel, hls.levels.length);
+        }
+
+        override public function dispose() : void {
+            CONFIG::LOGGING {
+            Log.debug("HLSDynamicStreamTrait:dispose");
+            }
+            _hls.removeEventListener(HLSEvent.LEVEL_SWITCH, _levelSwitchHandler);
+            super.dispose();
+        }
+
+        override public function getBitrateForIndex(index : int) : Number {
+            if (index > numDynamicStreams - 1 || index < 0) {
+                throw new RangeError(OSMFStrings.getString(OSMFStrings.STREAMSWITCH_INVALID_INDEX));
+            }
+            var bitrate : Number = _hls.levels[index].bitrate / 1000;
+            CONFIG::LOGGING {
+            Log.debug("HLSDynamicStreamTrait:getBitrateForIndex(" + index + ")=" + bitrate);
+            }
+            return bitrate;
+        }
+
+        override public function switchTo(index : int) : void {
+            CONFIG::LOGGING {
+            Log.debug("HLSDynamicStreamTrait:switchTo(" + index + ")/max:" + maxAllowedIndex);
+            }
+            if (index < 0 || index > maxAllowedIndex) {
+                throw new RangeError(OSMFStrings.getString(OSMFStrings.STREAMSWITCH_INVALID_INDEX));
+            }
+            autoSwitch = false;
+            if (!switching) {
+                setSwitching(true, index);
+            }
+        }
+
+        override protected function autoSwitchChangeStart(value : Boolean) : void {
+            CONFIG::LOGGING {
+            Log.debug("HLSDynamicStreamTrait:autoSwitchChangeStart:" + value);
+            }
+            if (value == true && _hls.autoLevel == false) {
+                _hls.nextLevel = -1;
+            }
+        }
+
+        override protected function switchingChangeStart(newSwitching : Boolean, index : int) : void {
+            CONFIG::LOGGING {
+            Log.debug("HLSDynamicStreamTrait:switchingChangeStart(newSwitching/index):" + newSwitching + "/" + index);
+            }
+            if (newSwitching) {
+                _hls.currentLevel = index;
+            }
+        }
+
+        /** Update playback position/duration **/
+        private function _levelSwitchHandler(event : HLSEvent) : void {
+            var newLevel : int = event.level;
+            CONFIG::LOGGING {
+            Log.debug("HLSDynamicStreamTrait:_qualitySwitchHandler:" + newLevel);
+            }
+            setCurrentIndex(newLevel);
+            setSwitching(false, newLevel);
+        };
+    }
+}