CODEWITHSUNDEEP
androidexoplayerexoplayer2.x
Partharaj Deb
Partharaj Deb

Reputation: 904

Seekbar/Seek Buttons are disabled in Exoplayer for .mkv files

In an Android App, I am trying to play videos from URL using Exoplayer. For .mp4 files it plays fine including seeking features. But when I try with .mkv videos it plays but seekbar (Timebar) looks like progressbar (doesn't support seeking by user). Also seek buttons do not get activated, nothing happens on click. Tested with 50+ videos. File size of them are between 20mb to 150mb.

Another confusing observation is everything works with another .mkv video with 13 sec duration and size less than 1mb.

Seek feature is not working for large .mkv files. Tested with following link [Link removed after getting solution]

Seek feature is not working for large mkv files

Seek feature is working for any .mp4 files and small .mkv files. Works for the following link- [Link removed after getting solution] Seek feature is working for mp4 files

Here is my code from android side-

Dependency-

implementation 'com.google.android.exoplayer:exoplayer:2.10.5'

VideoPlayerActivity.java

DefaultHttpDataSourceFactory dataSourceFactory = new DefaultHttpDataSourceFactory(Util.getUserAgent(this, getString(R.string.app_name)));
Map<String, String> headers = new HashMap<>();
headers.put("accept", "application/json");
headers.put(..., ...);
dataSourceFactory.getDefaultRequestProperties().set(headers);

//Also tested with
//DataSource.Factory dataSourceFactory = new DefaultHttpDataSourceFactory(Util.getUserAgent(this, getString(R.string.app_name)));


MediaSource videoSource = new ProgressiveMediaSource.Factory(dataSourceFactory)
        .createMediaSource(mUri);

player.prepare(videoSource);
player.setPlayWhenReady(true);
player.addListener(this);

Also tried applying-

DefaultExtractorsFactory extractorsFactory = new DefaultExtractorsFactory();
extractorsFactory.setConstantBitrateSeekingEnabled(true);

MediaSource videoSource = new ExtractorMediaSource.Factory(dataSourceFactory)
            .setExtractorsFactory(extractorsFactory)
            .createMediaSource(mUri);

Is there any option to enable seeking for large .mkv video files? Any other libraries will also be appreciated.

Update

If I try to seek programmatically with player.seekTo(15000); video starts from beginning again.

Upvotes: 0

Views: 1238

Answers (1)

Partharaj Deb
Partharaj Deb

Reputation: 904

I found that Exoplayer works fine with videos codec H.264 and audio codec AAC (May not be limited to) (Source: medium.com).

I converted my videos using ffmpeg with the command below and now mkv files with long duration are working fine for me.

ffmpeg -i input.mkv -vcodec libx264 -acodec aac -crf 28 output.mkv

-crf 28 is used to reduce file size keeping the quality almost same. In my case-

  • With crf 138M file became 54M in size.
  • Without crf 138M file became 107M in size.

Upvotes: 1

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