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Full support for generating/applying chapter data

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This commit adds the rest of the support for actually being able to use
Overdrive MediaMarkers.

Shoutout to benonymity's project OverdriveChapterize, where I was able
to port over the logic to actually do the timestamp conversions

https://github.com/benonymity/OverdriveChapterizer/blob/main/chapters.py

I still need to do a lot of cleanup of the actual code, and finish the UI.
This commit is contained in:
jmt-gh 2022-06-11 10:57:17 -07:00
parent 430fbf5e46
commit e01748eb2f
1 changed files with 41 additions and 17 deletions
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58
client/pages/audiobook/_id/chapters.vue
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@ -472,13 +472,11 @@ export default {
generateChaptersFromOverdriveMediaMarkers() {
var parseString = require('xml2js').parseString; // function to convert xml to JSON
var overdriveMediaMarkers = this.overdriveMediaMarkers // an array of XML. 1 Part.mp3 to 1 array index. Each index holds 1 XML that holds multiple chapters
//console.log(overdriveMediaMarkers)
var parsedOverdriveMediaMarkers = [] // an array of objects. each object being a chapter with a name and time key. the values are arrays of strings
overdriveMediaMarkers.forEach(function (item, index) {
var parsed_result
var holder
parseString(item, function (err, result) {
// result.Markers.Marker is the result of parsing the XML for the MediaMarker tags for the MP3 file (Part##.mp3)
// it is shaped like this:
@ -503,7 +501,7 @@ export default {
parsed_result = result.Markers.Marker
// The values for Name and Time in parsed results are returned as Arrays
// The values for Name and Time in parsed_results are returned as Arrays from parseString
// update them to be strings
parsed_result.forEach((item, index) => {
Object.keys(item).forEach(key => {
@ -515,25 +513,51 @@ export default {
parsedOverdriveMediaMarkers.push(parsed_result)
})
console.log(parsedOverdriveMediaMarkers.flat())
// go from an array of arrays of objects to an array of objects
parsedOverdriveMediaMarkers = parsedOverdriveMediaMarkers.flat()
// end result looks like:
// [
// {
// "Name": "Chapter 1: The Worst Birthday",
// "Time": "0:00.000"
// },
// {
// "Name": "Chapter 2: Dobby's Warning",
// "Time": "15:51.000"
// },
// { redacted }
// ]
parsedOverdriveMediaMarkers = parsedOverdriveMediaMarkers
// var index = 0
// var newOChapters = parsedXML.Markers.Marker.map((marker) => {
// return {
// id: index++,
// start: marker.Time[0],
// end: 0,
// title: marker.Name[0]
// }
// })
// console.log(newOChapters)
var index = 0
var time = 0.0
// this.overdriveMediaMarkers
// actually generate the chapter object
// logic ported over from benonymity's OverdriveChapterizer:
// https://github.com/benonymity/OverdriveChapterizer/blob/main/chapters.py
var length = 0.0
var newOChapters = []
this.audioTracks.forEach((track, track_index) => {
parsedOverdriveMediaMarkers[track_index].forEach((chapter) => {
time = chapter.Time.split(":")
time = length + parseFloat(time[0]) * 60 + parseFloat(time[1])
newOChapters.push(
{
id: index++,
start: time,
end: length,
title: chapter.Name
}
)
})
length += track.duration
})
this.newChapters = newOChapters
}
},
mounted() {
this.checkForOverdriveMediaMarkers()
var dismissed = false