Timebar/Seek Buttons are disabled in Exoplayer for some .mkv files and hevc video files

[lucfier-90]

It works for some mkv files perfectly but for some mkv files it does not show scrubber on time bar and when i try to seek video programmatically it starts from beginning
here is my code

simplexo=ExoPlayer.Builder(this,DefaultRenderersFactory(this)).build()
    val datasource=DefaultDataSourceFactory(this,Util.getUserAgent(this,"app"))
    concatenate=ConcatenatingMediaSource()


       
val mediasource=ProgressiveMediaSource.Factory(datasource).createMediaSource(Uri.parse(ok.get(position.toInt()).path)) concatenate.addMediaSource(mediasource)

    playerview.setPlayer(simplexo)
    simplexo.prepare(concatenate)

    simplexo.seekTo(position.toInt(),C.TIME_UNSET)
        simplexo.setPlayWhenReady(true)

[marcbaechinger]

This sounds like these media files are not seekable. If a file is not seekable then the scrubber is hidden. The behavior you observe when seeking programmatically matches to this as well.

[lucfier-90]

but in other video players it is seekable

[marcbaechinger]

Can you share a URI to the content that behaves like you describe with us? If you're unable to share test content publicly, please send them to dev.exoplayer@gmail.com using a subject in the format "Issue #9817". Please also update this issue to indicate you’ve done this.

[lucfier-90]

actually its a movie
i am sharing my google drive link
https://drive.google.com/file/d/1rKEv97j3kGEXkhvtz2Vt05KXzuSvJuvH/view?usp=sharing

[lucfier-90]

This is what happening