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Transcoder: More sturdy fix for faulty chapter parsing

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Arthur Jamet 2024-05-11 13:41:23 +02:00 committed by Arthur Jamet
parent be0bd81107
commit 9222b2e2d3
1 changed files with 31 additions and 15 deletions
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46
transcoder/src/info.go
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@ -310,21 +310,7 @@ func getInfo(path string) (*MediaInfo, error) {
Link: link,
}
}),
Chapters: Filter(Map(make([]Chapter, max(chapters_end-chapters_begin, 1)-1), func(_ Chapter, i int) Chapter {
startTime := mi.GetI(mediainfo.StreamMenu, 0, int(chapters_begin)+i, mediainfo.InfoName)
// We expect `startTime` to be something like `00:00:00`
if len(startTime) > 0 && !unicode.IsDigit(rune(startTime[0])) {
return Chapter{}
}
return Chapter{
StartTime: ParseTime(startTime),
// +1 is safe, the value at chapters_end contains the right duration
EndTime: ParseTime(mi.GetI(mediainfo.StreamMenu, 0, int(chapters_begin)+i+1, mediainfo.InfoName)),
Name: mi.GetI(mediainfo.StreamMenu, 0, int(chapters_begin)+i, mediainfo.InfoText),
}
}), func(chapter Chapter, i int) bool {
return chapter != Chapter{}
}),
Chapters: getChapters(chapters_begin, chapters_end, mi),
Fonts: Map(
attachments,
func(font string, _ int) string {
@ -354,3 +340,33 @@ func getInfo(path string) (*MediaInfo, error) {
}
return &ret, nil
}
func chapterTimeIsValid(chapterTime string) bool {
return len(chapterTime) > 0 && unicode.IsDigit(rune(chapterTime[0]))
}
func getChapters(chapters_begin uint32, chapters_end uint32, mi *mediainfo.File) []Chapter {
chapterCount := max(chapters_end-chapters_begin, 1) - 1
chapterIterationCount := chapterCount
for i := uint32(0); i < chapterIterationCount; i++ {
startTime := mi.GetI(mediainfo.StreamMenu, 0, int(chapters_begin+i), mediainfo.InfoName)
if !chapterTimeIsValid(startTime) {
chapterIterationCount = chapterIterationCount + 1
}
}
return Filter(Map(make([]Chapter, chapterIterationCount), func(_ Chapter, i int) Chapter {
startTime := mi.GetI(mediainfo.StreamMenu, 0, int(chapters_begin)+i, mediainfo.InfoName)
if !chapterTimeIsValid(startTime) {
return Chapter{}
}
return Chapter{
StartTime: ParseTime(startTime),
// +1 is safe, the value at chapters_end contains the right duration
EndTime: ParseTime(mi.GetI(mediainfo.StreamMenu, 0, int(chapters_begin)+i+1, mediainfo.InfoName)),
Name: mi.GetI(mediainfo.StreamMenu, 0, int(chapters_begin)+i, mediainfo.InfoText),
}
}), func(chapter Chapter, i int) bool {
return chapter != Chapter{}
})
}