Master doris with patches

api-extractor/report/hls.js.api.md

@@ -2149,6 +2149,7 @@ export interface LevelAttributes extends AttrList {
 // @public (undocumented)
 export type LevelControllerConfig = {
     startLevel?: number;
+    replaceCodecs: [string, string][];
 };
 
 // Warning: (ae-missing-release-tag) "LevelDetails" is part of the package's API, but it is missing a release tag (@alpha, @beta, @public, or @internal)

package.json

@@ -1,5 +1,6 @@
 {
   "name": "hls.js",
+  "version": "1.5.12",
   "license": "Apache-2.0",
   "description": "JavaScript HLS client using MediaSourceExtension",
   "homepage": "https://github.com/video-dev/hls.js",

src/config.ts

@@ -146,6 +146,7 @@ export type FPSControllerConfig = {
 
 export type LevelControllerConfig = {
   startLevel?: number;
+  replaceCodecs: [string, string][];
 };
 
 export type MP4RemuxerConfig = {
@@ -366,6 +367,7 @@ export const hlsDefaultConfig: HlsConfig = {
   workerPath: null, // used by transmuxer
   enableSoftwareAES: true, // used by decrypter
   startLevel: undefined, // used by level-controller
+  replaceCodecs: [], // used by level-controller
   startFragPrefetch: false, // used by stream-controller
   fpsDroppedMonitoringPeriod: 5000, // used by fps-controller
   fpsDroppedMonitoringThreshold: 0.2, // used by fps-controller

src/controller/eme-controller.ts

@@ -291,6 +291,7 @@ class EMEController implements ComponentAPI {
                   certificate,
                 );
               }
+              this.attemptSetMediaKeys(keySystem, mediaKeys);
               return mediaKeys;
             });
           });

src/controller/level-controller.ts

@@ -120,6 +120,17 @@ export default class LevelController extends BasePlaylistController {
     data.levels.forEach((levelParsed: LevelParsed) => {
       const attributes = levelParsed.attrs;
 
+      // replace codecs with the ones defined as supported by this browser
+      const { replaceCodecs } = this.hls.config;
+      for (const [from, to] of replaceCodecs) {
+        if (levelParsed.videoCodec?.toLowerCase() === from.toLowerCase()) {
+          levelParsed.videoCodec = to;
+        }
+        if (levelParsed.audioCodec?.toLowerCase() === from.toLowerCase()) {
+          levelParsed.audioCodec = to;
+        }
+      }
+
       // erase audio codec info if browser does not support mp4a.40.34.
       // demuxer will autodetect codec and fallback to mpeg/audio
       let { audioCodec, videoCodec } = levelParsed;

src/remux/mp4-remuxer.ts

@@ -55,6 +55,7 @@ export default class MP4Remuxer implements Remuxer {
     height?: number;
     pixelRatio?: [number, number];
   };
+  private isDiscontinuity: boolean = false;
 
   constructor(
     observer: HlsEventEmitter,
@@ -86,6 +87,7 @@ export default class MP4Remuxer implements Remuxer {
   resetTimeStamp(defaultTimeStamp: RationalTimestamp | null) {
     logger.log('[mp4-remuxer]: initPTS & initDTS reset');
     this._initPTS = this._initDTS = defaultTimeStamp;
+    this.isDiscontinuity = true;
   }
 
   resetNextTimestamp() {
@@ -182,14 +184,21 @@ export default class MP4Remuxer implements Remuxer {
 
       if (enoughVideoSamples) {
         firstKeyFrameIndex = findKeyframeIndex(videoTrack.samples);
-        if (!isVideoContiguous && this.config.forceKeyFrameOnDiscontinuity) {
+        if (
+          this.config.forceKeyFrameOnDiscontinuity &&
+          (!isVideoContiguous ||
+            (this.isDiscontinuity && firstKeyFrameIndex > 0))
+        ) {
           independent = true;
           if (firstKeyFrameIndex > 0) {
             logger.warn(
               `[mp4-remuxer]: Dropped ${firstKeyFrameIndex} out of ${length} video samples due to a missing keyframe`,
             );
             const startPTS = this.getVideoStartPts(videoTrack.samples);
             videoTrack.samples = videoTrack.samples.slice(firstKeyFrameIndex);
+            if (this.isDiscontinuity) {
+              firstKeyFrameIndex = 0;
+            }
             videoTrack.dropped += firstKeyFrameIndex;
             videoTimeOffset +=
               (videoTrack.samples[0].pts - startPTS) /

src/utils/texttrack-utils.ts

@@ -13,6 +13,25 @@ export function sendAddTrackEvent(track: TextTrack, videoEl: HTMLMediaElement) {
   videoEl.dispatchEvent(event);
 }
 
+function containsCue(track: TextTrack, cue: VTTCue) {
+  if (!track.cues) {
+    return false;
+  }
+
+  for (let i = 0; i < track.cues.length; i++) {
+    const cueInTextTrack = track.cues[i] as VTTCue;
+    if (
+      cueInTextTrack.startTime === cue.startTime &&
+      cueInTextTrack.endTime === cue.endTime &&
+      cueInTextTrack.text === cue.text
+    ) {
+      return true;
+    }
+  }
+
+  return false;
+}
+
 export function addCueToTrack(track: TextTrack, cue: VTTCue) {
   // Sometimes there are cue overlaps on segmented vtts so the same
   // cue can appear more than once in different vtt files.
@@ -21,7 +40,8 @@ export function addCueToTrack(track: TextTrack, cue: VTTCue) {
   if (mode === 'disabled') {
     track.mode = 'hidden';
   }
-  if (track.cues && !track.cues.getCueById(cue.id)) {
+
+  if (track.cues && !containsCue(track, cue)) {
     try {
       track.addCue(cue);
       if (!track.cues.getCueById(cue.id)) {