Support for subtitles in the video player

[MeowMeowVenom]

Is your feature request related to a problem? Please describe.

There is no option to view subtitles for a video file.

Describe the solution you'd like
I would like to view subtitles for a video file.

Describe alternatives you've considered
Maybe you can include plyr.io into nextcloud. It has wide-range of customisation features and subtitle options.
https://github.com/sampotts/plyr

[beardhatcode]

Hi, @Rejected-Peice thank you for raising this issue, we are however using Plyr as video player. See:

viewer/src/components/Videos.vue

Lines 27 to 53 in 3ef15a1

	<VuePlyr
	ref="plyr"
	:options="options"
	:style="{
	height: height + 'px',
	width: width + 'px'
	}">
	<video
	ref="video"
	:autoplay="active"
	:playsinline="true"
	:poster="livePhotoPath"
	:src="davPath"
	preload="metadata"
	@ended="donePlaying"
	@canplay="doneLoading"
	@loadedmetadata="onLoadedMetadata">
	<!-- Omitting `type` on purpose because most of the
	browsers auto detect the appropriate codec.
	Having it set force the browser to comply to
	the provided mime instead of detecting a potential
	compatibility. -->
	{{ t('viewer', 'Your browser does not support videos.') }}
	</video>
	</VuePlyr>

To add captions to a HTML5 video we need to have vtt files containing the subtitles. One possible avenue to get support for subtitles is to auto select a vtt file by the same name. But that seems a bit clumsy to me and difficult to explain to new users.

@Rejected-Peice do you have a suggestion for a user-friendly way to allow users to select the subtitle file?

[skjnldsv]

do you have a suggestion for a user-friendly way to allow users to select the subtitle file?

The way we already stuff is if the fileNames are the same.
usually modern videos players even use the format FILENAME.LANG.srt. We should most likely do the same as picking something is much more complicated.

[skjnldsv]

duplicate of #239