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 +1,66 @@
+/* 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.hls.demux {
+    import flash.utils.ByteArray;
+    import org.mangui.hls.model.Level;
+
+    CONFIG::LOGGING {
+        import org.mangui.hls.utils.Log;
+    }
+    public class DemuxHelper {
+        public static function probe(data : ByteArray,
+                                     level : Level,
+                                     audioselect : Function,
+                                     progress : Function,
+                                     complete : Function,
+                                     error : Function,
+                                     videometadata : Function,
+                                     id3tagfound : Function,
+                                     audioOnly : Boolean) : Demuxer {
+            data.position = 0;
+            CONFIG::LOGGING {
+                Log.debug("probe fragment type");
+            }
+            var aac_match : Boolean = AACDemuxer.probe(data);
+            var mp3_match : Boolean = MP3Demuxer.probe(data);
+            var ts_match : Boolean = TSDemuxer.probe(data);
+            CONFIG::LOGGING {
+                Log.debug("AAC/MP3/TS match:" + aac_match + "/" + mp3_match + "/" + ts_match);
+            }
+            /* prioritize level info :
+             * if ts_match && codec_avc  => TS demuxer
+             * if aac_match && codec_aac => AAC demuxer
+             * if mp3_match && codec_mp3 => MP3 demuxer
+             * if no codec info in Manifest, use fallback order : AAC/MP3/TS
+             */
+            if (ts_match && level.codec_h264) {
+                CONFIG::LOGGING {
+                    Log.debug("TS match + H264 signaled in Manifest, use TS demuxer");
+                }
+                return new TSDemuxer(audioselect, progress, complete, error, videometadata, audioOnly);
+            } else if (aac_match && level.codec_aac) {
+                CONFIG::LOGGING {
+                    Log.debug("AAC match + AAC signaled in Manifest, use AAC demuxer");
+                }
+                return new AACDemuxer(audioselect, progress, complete, error, id3tagfound);
+            } else if (mp3_match && level.codec_mp3) {
+                CONFIG::LOGGING {
+                    Log.debug("MP3 match + MP3 signaled in Manifest, use MP3 demuxer");
+                }
+                return new MP3Demuxer(audioselect, progress, complete, error, id3tagfound);
+            } else if (aac_match) {
+                return new AACDemuxer(audioselect, progress, complete, error, id3tagfound);
+            } else if (mp3_match) {
+                return new MP3Demuxer(audioselect, progress, complete, error, id3tagfound);
+            } else if (ts_match) {
+                return new TSDemuxer(audioselect, progress, complete, error, videometadata, audioOnly);
+            } else {
+                CONFIG::LOGGING {
+                    Log.debug("probe fails");
+                }
+                return null;
+            }
+        }
+    }
+}