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This commit is contained in:
Vanilagy
2025-09-05 18:59:13 +02:00
parent dd7804e5ab
commit b58476b1b0
19 changed files with 393 additions and 395 deletions
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src/isobmff/isobmff-boxes.ts
+43 -43
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@@ -44,7 +44,7 @@ import {
Sample,
} from './isobmff-muxer';
import { parseOpusIdentificationHeader } from '../codec-data';
import { MediaMetadata, RichImageData } from '../metadata';
import { MetadataTags, RichImageData } from '../tags';
export class IsobmffBoxWriter {
private helper = new Uint8Array(8);
@@ -1274,11 +1274,11 @@ export const vtta = (notes: string) => box('vtta', [...textEncoder.encode(notes)
const udta = (muxer: IsobmffMuxer) => {
const boxes: Box[] = [];
// Depending on the format, metadata is written differently
// Depending on the format, metadata tags are written differently
if (muxer.isQuickTime) {
addQuickTimeMetadataboxes(boxes, muxer.output._metadata);
addQuickTimeMetadataTagBoxes(boxes, muxer.output._metadataTags);
} else {
const metaBox = meta(muxer.output._metadata);
const metaBox = meta(muxer.output._metadataTags);
if (metaBox) {
boxes.push(metaBox);
}
@@ -1291,46 +1291,46 @@ const udta = (muxer: IsobmffMuxer) => {
return box('udta', undefined, boxes);
};
const addQuickTimeMetadataboxes = (boxes: Box[], metadata: MediaMetadata) => {
const addQuickTimeMetadataTagBoxes = (boxes: Box[], tags: MetadataTags) => {
// https://exiftool.org/TagNames/QuickTime.html (QuickTime UserData Tags)
// For QuickTime files, metadata is dumped into the udta box
// For QuickTime files, metadata tags are dumped into the udta box
for (const { key, value } of keyValueIterator(metadata)) {
for (const { key, value } of keyValueIterator(tags)) {
switch (key) {
case 'title': {
boxes.push(metadataStringBoxShort('©nam', value));
boxes.push(metadataTagStringBoxShort('©nam', value));
}; break;
case 'description': {
boxes.push(metadataStringBoxShort('©des', value));
boxes.push(metadataTagStringBoxShort('©des', value));
}; break;
case 'artist': {
boxes.push(metadataStringBoxShort('©ART', value));
boxes.push(metadataTagStringBoxShort('©ART', value));
}; break;
case 'album': {
boxes.push(metadataStringBoxShort('©alb', value));
boxes.push(metadataTagStringBoxShort('©alb', value));
}; break;
case 'albumArtist': {
boxes.push(metadataStringBoxShort('albr', value));
boxes.push(metadataTagStringBoxShort('albr', value));
}; break;
case 'genre': {
boxes.push(metadataStringBoxShort('©gen', value));
boxes.push(metadataTagStringBoxShort('©gen', value));
}; break;
case 'date': {
boxes.push(metadataStringBoxShort('©day', value.toISOString().slice(0, 10)));
boxes.push(metadataTagStringBoxShort('©day', value.toISOString().slice(0, 10)));
}; break;
case 'comment': {
boxes.push(metadataStringBoxShort('©cmt', value));
boxes.push(metadataTagStringBoxShort('©cmt', value));
}; break;
case 'lyrics': {
boxes.push(metadataStringBoxShort('©lyr', value));
boxes.push(metadataTagStringBoxShort('©lyr', value));
}; break;
case 'raw': {
@@ -1338,9 +1338,9 @@ const addQuickTimeMetadataboxes = (boxes: Box[], metadata: MediaMetadata) => {
}; break;
case 'discNumber':
case 'discNumberMax':
case 'discsTotal':
case 'trackNumber':
case 'trackNumberMax':
case 'tracksTotal':
case 'images': {
// Not written for QuickTime (common Apple L)
}; break;
@@ -1349,15 +1349,15 @@ const addQuickTimeMetadataboxes = (boxes: Box[], metadata: MediaMetadata) => {
}
}
if (metadata.raw) {
for (const key in metadata.raw) {
const value = metadata.raw[key];
if (tags.raw) {
for (const key in tags.raw) {
const value = tags.raw[key];
if (value == null || key.length !== 4 || boxes.some(x => x.type === key)) {
continue;
}
if (typeof value === 'string') {
boxes.push(metadataStringBoxShort(key, value));
boxes.push(metadataTagStringBoxShort(key, value));
} else if (value instanceof Uint8Array) {
boxes.push(box(key, Array.from(value)));
}
@@ -1365,7 +1365,7 @@ const addQuickTimeMetadataboxes = (boxes: Box[], metadata: MediaMetadata) => {
}
};
const metadataStringBoxShort = (name: string, value: string) => {
const metadataTagStringBoxShort = (name: string, value: string) => {
const encoded = textEncoder.encode(value);
return box(name, [
@@ -1382,48 +1382,48 @@ const DATA_BOX_MIME_TYPE_MAP: Record<string, number> = {
};
/** Metadata Box */
const meta = (metadata: MediaMetadata) => {
const meta = (tags: MetadataTags) => {
const boxes: Box[] = [];
// https://exiftool.org/TagNames/QuickTime.html (QuickTime ItemList Tags)
// This is the metadata format used for MP4 files
for (const { key, value } of keyValueIterator(metadata)) {
for (const { key, value } of keyValueIterator(tags)) {
switch (key) {
case 'title': {
boxes.push(metadataStringBoxLong('©nam', value));
boxes.push(metadataTagStringBoxLong('©nam', value));
}; break;
case 'description': {
boxes.push(metadataStringBoxLong('©des', value));
boxes.push(metadataTagStringBoxLong('©des', value));
}; break;
case 'artist': {
boxes.push(metadataStringBoxLong('©ART', value));
boxes.push(metadataTagStringBoxLong('©ART', value));
}; break;
case 'album': {
boxes.push(metadataStringBoxLong('©alb', value));
boxes.push(metadataTagStringBoxLong('©alb', value));
}; break;
case 'albumArtist': {
boxes.push(metadataStringBoxLong('aART', value));
boxes.push(metadataTagStringBoxLong('aART', value));
}; break;
case 'comment': {
boxes.push(metadataStringBoxLong('©cmt', value));
boxes.push(metadataTagStringBoxLong('©cmt', value));
}; break;
case 'genre': {
boxes.push(metadataStringBoxLong('©gen', value));
boxes.push(metadataTagStringBoxLong('©gen', value));
}; break;
case 'lyrics': {
boxes.push(metadataStringBoxLong('©lyr', value));
boxes.push(metadataTagStringBoxLong('©lyr', value));
}; break;
case 'date': {
boxes.push(metadataStringBoxLong('©day', value.toISOString().slice(0, 10)));
boxes.push(metadataTagStringBoxLong('©day', value.toISOString().slice(0, 10)));
}; break;
case 'images': {
@@ -1449,7 +1449,7 @@ const meta = (metadata: MediaMetadata) => {
u32(0),
u16(0), // Empty
u16(value),
u16(metadata.trackNumberMax ?? 0),
u16(tags.tracksTotal ?? 0),
u16(0), // Empty
]),
]));
@@ -1462,14 +1462,14 @@ const meta = (metadata: MediaMetadata) => {
u32(0),
u16(0), // Empty
u16(value),
u16(metadata.discNumberMax ?? 0),
u16(tags.discsTotal ?? 0),
u16(0), // Empty
]),
]));
}; break;
case 'trackNumberMax':
case 'discNumberMax':{
case 'tracksTotal':
case 'discsTotal':{
// These are included with 'trackNumber' and 'discNumber' respectively
}; break;
@@ -1481,15 +1481,15 @@ const meta = (metadata: MediaMetadata) => {
}
}
if (metadata.raw) {
for (const key in metadata.raw) {
const value = metadata.raw[key];
if (tags.raw) {
for (const key in tags.raw) {
const value = tags.raw[key];
if (value == null || key.length !== 4 || boxes.some(x => x.type === key)) {
continue;
}
if (typeof value === 'string') {
boxes.push(metadataStringBoxLong(key, value));
boxes.push(metadataTagStringBoxLong(key, value));
} else if (value instanceof Uint8Array) {
boxes.push(box(key, undefined, [
box('data', [
@@ -1520,7 +1520,7 @@ const meta = (metadata: MediaMetadata) => {
]);
};
const metadataStringBoxLong = (name: string, value: string) => {
const metadataTagStringBoxLong = (name: string, value: string) => {
return box(name, undefined, [
box('data', [
u32(1), // Type indicator (UTF-8)