I am using the Exoplayer Demo app and want to preload a MP4 video from SD card. I have tried out the implementation from this post, but it does not work. There is no such class called DemoUtil.java in my exoplayer Demo. Instead used:
public static final Sample[] LOCAL_VIDEOS = new Sample[] {
new Sample("Some User friendly name of video 1",
"/mnt/sdcard/video1.mp4", Util.TYPE_OTHER),
};
I also could not use the their snippet of code mentioned for SampleChooserActivity.java. (Kept giving me errors)
I instead used :
group = new SampleGroup("Local Videos");
group.addAll(Samples.LOCAL_VIDEOS);
sampleGroups.add(group);
What am I doing wrong? Does the path of the file change for every device?
Haven't tried the demo app, but I have managed to create my own example of playing local audio files and have posted it here: https://github.com/nzkozar/ExoplayerExample
Here is the main part that does all the work of preparing the player from a file Uri:
private void prepareExoPlayerFromFileUri(Uri uri){
exoPlayer = ExoPlayerFactory.newSimpleInstance(this, new DefaultTrackSelector(null), new DefaultLoadControl());
exoPlayer.addListener(eventListener);
DataSpec dataSpec = new DataSpec(uri);
final FileDataSource fileDataSource = new FileDataSource();
try {
fileDataSource.open(dataSpec);
} catch (FileDataSource.FileDataSourceException e) {
e.printStackTrace();
}
DataSource.Factory factory = new DataSource.Factory() {
@Override
public DataSource createDataSource() {
return fileDataSource;
}
};
MediaSource audioSource = new ExtractorMediaSource(fileDataSource.getUri(),
factory, new DefaultExtractorsFactory(), null, null);
exoPlayer.prepare(audioSource);
}
You can get the Uri like this: Uri.fromFile(file)
After you have prepared your file for playback as shown above, you only need to call exoPlayer.setPlayWhenReady(true);
to start playback.
For a video file you'd probably only need to attach a surface view to your exoPlayer object, but I haven't really done this with ExoPlayer2 yet.
For those who want to play a video from assets using ExoPlayer 2 here is a way:
String playerInfo = Util.getUserAgent(context, "ExoPlayerInfo");
DefaultDataSourceFactory dataSourceFactory = new DefaultDataSourceFactory(
context, playerInfo
);
MediaSource mediaSource = new ExtractorMediaSource.Factory(dataSourceFactory)
.setExtractorsFactory(new DefaultExtractorsFactory())
.createMediaSource(Uri.parse("asset:///your_video.mov"));
player.prepare(mediaSource);
This worked for me.Try these steps:
Get path of the file and start the player
File myFile = new File(extStore.getAbsolutePath() + "/folder/videos/" + video_name);
videoUrl= String.valueOf(Uri.fromFile(myFile));
initializePlayer(videoUrl);
Initializing player
private void initializePlayer(String videoUrl) {
player = ExoPlayerFactory.newSimpleInstance(
new DefaultRenderersFactory(getActivity()),
new DefaultTrackSelector(), new DefaultLoadControl());
playerView.setPlayer(player);
player.setPlayWhenReady(playWhenReady);
player.seekTo(currentWindow, playbackPosition);
Uri uri = Uri.parse(videoUrl);
MediaSource mediaSource = buildMediaSource(uri);
player.prepare(mediaSource, resetPositionBoolean, false);
}
Building media source
private MediaSource buildMediaSource(Uri uri) {
return new ExtractorMediaSource.Factory(
new DefaultDataSourceFactory(getActivity(),"Exoplayer-local")).
createMediaSource(uri);
}
For those looking to load from the assets folder:
assets/xyz.mp4
it works by loading the file with:
"file:/android_asset/xyz.mp4"
and using the DefaultDataSourceFactory. Checked on exoplayer 2.4.4.
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