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Code Issues Releases Wiki Activity

Add proper support for AVI and WAV files. Up-rev to 1.1.3.

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This commit is contained in:
Jeff Schiller 2023-10-15 21:04:54 -07:00
parent 97cfb3b388
commit 5a00a3fdd0
4 changed files with 61 additions and 14 deletions
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30
codecs/codecs.js
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@ -42,6 +42,17 @@
* @property {ProbeFormat} format
*/
/**
* Maps the ffprobe format.format_name string to a short MIME type.
* @type {Object<string, string>}
*/
const FORMAT_NAME_TO_SHORT_TYPE = {
'avi': 'video/x-msvideo',
'flac': 'audio/flac',
'mp3': 'audio/mpeg',
'wav': 'audio/wav',
}
/**
* TODO: Reconcile this with file/sniffer.js findMimeType() which does signature matching.
* @param {ProbeInfo} info
@ -51,11 +62,9 @@ export function getShortMIMEString(info) {
if (!info) throw `Invalid ProbeInfo`;
if (!info.streams || info.streams.length === 0) throw `No streams in ProbeInfo`;
// mp3/flac files are always considered audio/ (even with mjpeg video streams).
if (info.format.format_name === 'mp3') {
return 'audio/mpeg';
} else if (info.format.format_name === 'flac') {
return 'audio/flac';
const formatName = info?.format?.format_name;
if (formatName && Object.keys(FORMAT_NAME_TO_SHORT_TYPE).includes(formatName)) {
return FORMAT_NAME_TO_SHORT_TYPE[formatName];
}
// M4A files are specifically audio/mp4.
@ -75,10 +84,7 @@ export function getShortMIMEString(info) {
/** @type {string} */
let subType;
switch (info.format.format_name) {
case 'avi':
subType = 'x-msvideo';
break;
switch (formatName) {
case 'mpeg':
subType = 'mpeg';
break;
@ -93,7 +99,7 @@ export function getShortMIMEString(info) {
subType = 'webm';
break;
default:
throw `Cannot handle format ${info.format.format_name} yet. ` +
throw `Cannot handle format ${formatName} yet. ` +
`Please file a bug https://github.com/codedread/bitjs/issues/new`;
}
@ -113,9 +119,7 @@ export function getShortMIMEString(info) {
export function getFullMIMEString(info) {
/** A string like 'video/mp4' */
let contentType = `${getShortMIMEString(info)}`;
// If MP3/FLAC, just send back the type.
if (contentType === 'audio/mpeg'
|| contentType === 'audio/flac') {
if (Object.values(FORMAT_NAME_TO_SHORT_TYPE).includes(contentType)) {
return contentType;
}