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Add specific, per-output-format data callbacks & rewrite some logic in the process

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Vanilagy
2025-03-22 20:30:24 +01:00
parent bbc2e088ca
commit ceb2528014
14 changed files with 458 additions and 100 deletions
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src/mp3/mp3-muxer.ts
+13 -1
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@@ -1,21 +1,24 @@
import { assert, toDataView } from '../misc';
import { Muxer } from '../muxer';
import { Output, OutputAudioTrack } from '../output';
import { Mp3OutputFormat } from '../output-format';
import { EncodedPacket } from '../packet';
import { Writer } from '../writer';
import { getXingOffset, INFO, readFrameHeader, XING } from './mp3-misc';
import { Mp3Writer, XingFrameData } from './mp3-writer';
export class Mp3Muxer extends Muxer {
private format: Mp3OutputFormat;
private writer: Writer;
private mp3Writer: Mp3Writer;
private xingFrameData: XingFrameData | null = null;
private frameCount = 0;
private framePositions: number[] = [];
constructor(output: Output) {
constructor(output: Output, format: Mp3OutputFormat) {
super(output);
this.format = format;
this.writer = output._writer;
this.mp3Writer = new Mp3Writer(output._writer);
}
@@ -120,8 +123,17 @@ export class Mp3Muxer extends Muxer {
this.xingFrameData.fileSize = endPos;
this.xingFrameData.toc = toc;
if (this.format._options.onXingFrame) {
this.writer.startTrackingWrites();
}
this.mp3Writer.writeXingFrame(this.xingFrameData);
if (this.format._options.onXingFrame) {
const { data, start } = this.writer.stopTrackingWrites();
this.format._options.onXingFrame(data, start);
}
this.writer.seek(endPos);
release();