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Replace ArrayBufferTarget with BufferTarget, now spitting out Uint8Array and using .resize

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This commit is contained in:
Vanilagy
2025-01-05 14:24:06 +01:00
parent ee81e1b674
commit 37820f1d4c
6 changed files with 63 additions and 40 deletions
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src/isobmff/isobmff-muxer.ts
+4 -4
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@@ -1,11 +1,10 @@
import { Box, free, ftyp, IsobmffBoxWriter, mdat, mfra, moof, moov, vtta, vttc, vtte } from './isobmff-boxes';
import { Muxer } from '../muxer';
import { Output, OutputAudioTrack, OutputSubtitleTrack, OutputTrack, OutputVideoTrack } from '../output';
import { ArrayBufferTargetWriter, Writer } from '../writer';
import { BufferTargetWriter, Writer } from '../writer';
import { assert, last } from '../misc';
import { IsobmffOutputFormatOptions, IsobmffOutputFormat, MovOutputFormat } from '../output-format';
import { inlineTimestampRegex, SubtitleConfig, SubtitleCue, SubtitleMetadata } from '../subtitles';
import { ArrayBufferTarget } from '../target';
import {
parsePcmCodec,
PCM_CODECS,
@@ -15,6 +14,7 @@ import {
validateVideoChunkMetadata,
} from '../codec';
import { EncodedAudioSample, EncodedVideoSample } from '../sample';
import { BufferTarget } from '../target';
export const GLOBAL_TIMESCALE = 1000;
const TIMESTAMP_OFFSET = 2_082_844_800; // Seconds between Jan 1 1904 and Jan 1 1970
@@ -102,7 +102,7 @@ export class IsobmffMuxer extends Muxer {
private isMov: boolean;
private fastStart: NonNullable<IsobmffOutputFormatOptions['fastStart']>;
private auxTarget = new ArrayBufferTarget();
private auxTarget = new BufferTarget();
private auxWriter = this.auxTarget._createWriter();
private auxBoxWriter = new IsobmffBoxWriter(this.auxWriter);
@@ -126,7 +126,7 @@ export class IsobmffMuxer extends Muxer {
// If the fastStart option isn't defined, enable in-memory fast start if the target is an ArrayBuffer, as the
// memory usage remains identical
const fastStartDefault = this.writer instanceof ArrayBufferTargetWriter ? 'in-memory' : false;
const fastStartDefault = this.writer instanceof BufferTargetWriter ? 'in-memory' : false;
this.fastStart = format._options.fastStart ?? fastStartDefault;
if (this.fastStart === 'in-memory' || this.fastStart === 'fragmented') {