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Adjust timestamp logic for media sinks for more accurate audio timing

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Vanilagy
2025-01-12 16:41:42 +01:00
parent 764a6dfd52
commit aea808ca0c
6 changed files with 91 additions and 37 deletions
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src/matroska/matroska-muxer.ts
+3 -3
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@@ -487,7 +487,7 @@ export class MatroskaMuxer extends Muxer {
const timestamp = this.validateAndNormalizeTimestamp(trackData.track, cue.timestamp, true);
let bodyText = cue.text;
const timestampMs = Math.floor(timestamp * 1000);
const timestampMs = Math.round(timestamp * 1000);
// Replace in-body timestamps so that they're relative to the cue start time
inlineTimestampRegex.lastIndex = 0;
@@ -622,7 +622,7 @@ export class MatroskaMuxer extends Muxer {
this.createSegment();
}
const msTimestamp = Math.floor(1000 * chunk.timestamp);
const msTimestamp = Math.round(1000 * chunk.timestamp);
// We can only finalize this cluster (and begin a new one) if we know that each track will be able to
// start the new one with a key frame.
const keyFrameQueuedEverywhere = this.trackDatas.every((otherTrackData) => {
@@ -673,7 +673,7 @@ export class MatroskaMuxer extends Muxer {
view.setUint8(0, 0x80 | trackData.track.id);
view.setInt16(1, relativeTimestamp, false);
const msDuration = Math.floor(1000 * chunk.duration);
const msDuration = Math.round(1000 * chunk.duration);
if (msDuration === 0 && !chunk.additions) {
// No duration or additions, we can write out a SimpleBlock