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Fixed negative timestamps occurring with live media (fixes #364)

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Vanilagy
2026-05-07 11:11:37 +02:00
parent daf42181c9
commit fff09411e6
11 changed files with 40 additions and 53 deletions
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src/matroska/matroska-muxer.ts
+8 -6
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@@ -907,7 +907,9 @@ export class MatroskaMuxer extends Muxer {
const trackData = this.getVideoTrackData(track, packet, meta);
const isKeyFrame = packet.type === 'key';
let timestamp = this.validateAndNormalizeTimestamp(trackData.track, packet.timestamp, isKeyFrame);
this.validateTimestamp(trackData.track, packet.timestamp, isKeyFrame);
let timestamp = packet.timestamp;
let duration = packet.duration;
if (track.metadata.frameRate !== undefined) {
@@ -950,9 +952,9 @@ export class MatroskaMuxer extends Muxer {
}
const isKeyFrame = packet.type === 'key';
const timestamp = this.validateAndNormalizeTimestamp(trackData.track, packet.timestamp, isKeyFrame);
const audioChunk = this.createInternalChunk(packetData, timestamp, packet.duration, packet.type);
this.validateTimestamp(trackData.track, packet.timestamp, isKeyFrame);
const audioChunk = this.createInternalChunk(packetData, packet.timestamp, packet.duration, packet.type);
trackData.chunkQueue.push(audioChunk);
await this.interleaveChunks();
} finally {
@@ -966,10 +968,10 @@ export class MatroskaMuxer extends Muxer {
try {
const trackData = this.getSubtitleTrackData(track, meta);
const timestamp = this.validateAndNormalizeTimestamp(trackData.track, cue.timestamp, true);
this.validateTimestamp(trackData.track, cue.timestamp, true);
let bodyText = cue.text;
const timestampMs = Math.round(timestamp * 1000);
const timestampMs = Math.round(cue.timestamp * 1000);
// Replace in-body timestamps so that they're relative to the cue start time
inlineTimestampRegex.lastIndex = 0;
@@ -985,7 +987,7 @@ export class MatroskaMuxer extends Muxer {
const subtitleChunk = this.createInternalChunk(
body,
timestamp,
cue.timestamp,
cue.duration,
'key',
additions.trim() ? textEncoder.encode(additions) : null,