Vfrdtyky

I am trying to implement exoplayer 2 for one of our applications.

Seems like the documentation and examples for something more complicated than automatic playback is very poor.

My problem is I create a mediasource and set it to the player, after that I have a custom icon that plays the video and on finish I seek back to 0.

Also I have a custom dual seekbar that when moved it will seek to a position and clip the video between the selected start and end time.

I am not sure if changing source of the player without recreating the whole thing is even possible.

I init my player as:

@AfterViews

protected void init() {

        TrackSelector trackSelector = new DefaultTrackSelector();

        mPlayer = ExoPlayerFactory.newSimpleInstance(getContext(), trackSelector);

        mVideoView.setPlayer(mPlayer);

        mPlayer.addListener(this);

}

After that I prepare the player like this:

public void setVideoPath(final String videoPath) {

        mVideoPath = videoPath;

        // Produces DataSource instances through which media data is loaded.

        DataSource.Factory dataSourceFactory = new DefaultDataSourceFactory(getContext(), Util.getUserAgent(getContext(), "yourApplicationName"));

        // This is the MediaSource representing the media to be played.

        videoSource = new ExtractorMediaSource.Factory(dataSourceFactory).createMediaSource(Uri.parse(videoPath));

        mPlayer.prepare(videoSource);

}

When my play icon is clicked it runs:

@Click(R.id.view_video_preview_container_play)

    void onPlayClicked() {

        mPlayButton.setVisibility(GONE);

        mPlayer.setPlayWhenReady(true);

}

When the playback is finished I do:

@Override

    public void onPlayerStateChanged(boolean playWhenReady, int playbackState) {



        if (playbackState == STATE_ENDED) {

            mPlayButton.setVisibility(VISIBLE);

            mPlayer.seekTo(0);

            mPlayer.setPlayWhenReady(false);

        }

}

No when I seek I do:

disposable = source

                .debounce(500, TimeUnit.MILLISECONDS)

                .observeOn(AndroidSchedulers.mainThread())

                .subscribe(range -> {

                            mPlayer.stop();

                            mPlayButton.setVisibility(VISIBLE);

                            clippingSource = new ClippingMediaSource(videoSource, 2000000, 5000000);

                            mPlayer.prepare(clippingSource);

                        }

                );

Now when the source emits to my observable I get back:

2018-11-16 12:48:16.463 28090-28209/nl.dtt.vormats E/ExoPlayerImplInternal: Source error.

    com.google.android.exoplayer2.source.ClippingMediaSource$IllegalClippingException: Illegal clipping: not seekable to start

        at com.google.android.exoplayer2.source.ClippingMediaSource$ClippingTimeline.<init>(ClippingMediaSource.java:350)

        at com.google.android.exoplayer2.source.ClippingMediaSource.refreshClippedTimeline(ClippingMediaSource.java:296)

        at com.google.android.exoplayer2.source.ClippingMediaSource.onChildSourceInfoRefreshed(ClippingMediaSource.java:262)

        at com.google.android.exoplayer2.source.ClippingMediaSource.onChildSourceInfoRefreshed(ClippingMediaSource.java:34)

        at com.google.android.exoplayer2.source.CompositeMediaSource$1.onSourceInfoRefreshed(CompositeMediaSource.java:103)

        at com.google.android.exoplayer2.source.BaseMediaSource.refreshSourceInfo(BaseMediaSource.java:73)

        at com.google.android.exoplayer2.source.ExtractorMediaSource.notifySourceInfoRefreshed(ExtractorMediaSource.java:400)

        at com.google.android.exoplayer2.source.ExtractorMediaSource.prepareSourceInternal(ExtractorMediaSource.java:348)

        at com.google.android.exoplayer2.source.BaseMediaSource.prepareSource(BaseMediaSource.java:137)

        at com.google.android.exoplayer2.source.CompositeMediaSource.prepareChildSource(CompositeMediaSource.java:109)

        at com.google.android.exoplayer2.source.ClippingMediaSource.prepareSourceInternal(ClippingMediaSource.java:216)

        at com.google.android.exoplayer2.source.BaseMediaSource.prepareSource(BaseMediaSource.java:137)

        at com.google.android.exoplayer2.ExoPlayerImplInternal.prepareInternal(ExoPlayerImplInternal.java:396)

        at com.google.android.exoplayer2.ExoPlayerImplInternal.handleMessage(ExoPlayerImplInternal.java:286)

        at android.os.Handler.dispatchMessage(Handler.java:104)

        at android.os.Looper.loop(Looper.java:166)

        at android.os.HandlerThread.run(HandlerThread.java:65)

Unfortunately as I stated before the documentation if very poor and I managed only to find out that the exceptions is thrown at:

if (startUs != 0 && !window.isSeekable) {

          throw new IllegalClippingException(IllegalClippingException.REASON_NOT_SEEKABLE_TO_START);

}

Specifically window.isSeekable is false.

The solution was to recreate the the MediaSource as it seems like the same MediaSource can not be reused.