iambaljeet/videopreloading

Demo for video PreLoading/ PreCaching using ExoPlayer 2.13.3 in Android.

VideoPreLoading

Demo for video PreLoading/ PreCaching using ExoPlayer 2.13.3 in Android.

With this project we used some dome videos URL's and Adnroid intent service to preload/precache those videos in background. If a video is found cached the player will use local cache to play those videos otherwise will load it from server.

Article link (Obsolete): https://medium.com/@ibaljeet/video-preloading-precaching-using-exoplayer2-in-android-da340cc268d9

videopreloading's Issues

HLS issue

I checked this source code for HLS videos, but In Hls the video cant preload.

Can you give me old version

My application use old version of Exo so i can't use CacheWrite
please give me to [email protected].
Thanks you

not supported in new version of exo player

Hello

thanks for the article. I've tried to implement it and to use it in the upgraded version of exoplayer (2.13) but many of the methods signatures are different and there is no support now for CacheUtil.

What changes should I do to support new version of exo player?

thanks

how to cancel the cacheWriter(which was cacheUtil previously) when downloadPercentage is 30%?

how to use this in java project

can you provide sample code for java project?

precaching failed to start

good morning dev

i try to use your library within my app with a litle adaptation but due face to java java.lang.NullPointerException but don't understant because i thing all varaible have been pass well

this is my main activity : to pass VideoUrl and VideoList throught intent to VideoPreLoadingService directly without using fragment

class MainActivity : AppCompatActivity(), HomeScreenCallback, AudioWidget.OnWidgetStateChangedListener {

    private var videoList = arrayListOf<String>();
    private var videoUrl: String? = null

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_notification)

          videoList.add("http://MY_ip_server_adress:80/live/streamkey/audio.mp4")

        startPreLoadingService(videoList[0])
        finish()
    }

    private fun startPreLoadingService(videoUrl: String) {
        val preloadingServiceIntent = Intent(applicationContext, VideoPreLoadingService::class.java)
        preloadingServiceIntent.putStringArrayListExtra(Constants.VIDEO_LIST, videoList)
        preloadingServiceIntent.putExtra(Constants.VIDEO_URL, videoUrl)
        applicationContext?.startService(preloadingServiceIntent)
    }

    override fun openVideoPlayScreen(videoUrl: String) {
    }

and this is my VideoPreLoadingService to start preloading stream ans play it

    private lateinit var mContext: Context
    private var simpleCache: SimpleCache? = null
    private var cachingJob: Job? = null
    private var videosList: ArrayList<String>? = null

    private var cacheDataSourceFactory: CacheDataSourceFactory? = null
    private var simpleExoPlayer: SimpleExoPlayer? = null

    private var videoUrl: String? = null

    override fun onHandleIntent(intent: Intent?) {
        mContext = applicationContext
        simpleCache = MyApp.simpleCache

        if (intent != null) {
            val extras = intent.extras
            videoUrl = extras?.getString(Constants.VIDEO_URL)
            videosList = extras?.getStringArrayList(Constants.VIDEO_LIST)

            if (!videosList.isNullOrEmpty()) {
                preCacheVideo(videosList)
            }
        }
        initPlayer()
    }

    private fun initPlayer() {
        simpleExoPlayer = mContext.let {
            SimpleExoPlayer.Builder(it).build()
        }

        simpleCache = MyApp.simpleCache

        cacheDataSourceFactory = CacheDataSourceFactory(
                simpleCache,
                DefaultHttpDataSourceFactory(mContext.let { Util.getUserAgent(it, "live") }),
                CacheDataSource.FLAG_IGNORE_CACHE_ON_ERROR
        )

        val videoUri = Uri.parse(videoUrl)
        val mediaSource = ProgressiveMediaSource.Factory(cacheDataSourceFactory).createMediaSource(videoUri)

        //playerView.player = simpleExoPlayer
        simpleExoPlayer?.playWhenReady = true
        simpleExoPlayer?.seekTo(0, 0)
        simpleExoPlayer?.repeatMode = Player.REPEAT_MODE_OFF
        simpleExoPlayer?.prepare(mediaSource, true, false)
        simpleExoPlayer?.addListener(this)
    }

    private fun preCacheVideo(videosList: ArrayList<String>?) {
        //var videoUrl: String? = null
        if (!videosList.isNullOrEmpty()) {
            videoUrl = videosList[0]
            videosList.removeAt(0)
        } else {
            stopSelf()
        }
        if (!videoUrl.isNullOrBlank()) {
            val videoUri = Uri.parse(videoUrl)
            val dataSpec = DataSpec(videoUri)
            val defaultCacheKeyFactory = CacheUtil.DEFAULT_CACHE_KEY_FACTORY
            val progressListener = CacheUtil.ProgressListener { requestLength, bytesCached, newBytesCached -> val downloadPercentage: Double = (bytesCached * 100.0 / requestLength) }
            val dataSource: DataSource = DefaultDataSourceFactory(mContext, Util.getUserAgent(this, "live")).createDataSource()

            cachingJob = GlobalScope.launch(Dispatchers.IO) { cacheVideo(dataSpec, defaultCacheKeyFactory, dataSource,progressListener )
                preCacheVideo(videosList)
            }
        }
    }

    private fun cacheVideo(
        dataSpec: DataSpec,
        defaultCacheKeyFactory: CacheKeyFactory?,
        dataSource: DataSource,
        progressListener: CacheUtil.ProgressListener
    ) {
        CacheUtil.cache(
            dataSpec,
            simpleCache,
            defaultCacheKeyFactory,
            dataSource,
            progressListener,
            null
        )
    }

    override fun onDestroy() {
        super.onDestroy()
        cachingJob?.cancel()
    }

don't know what i have do wrong . please need your help

Hello, a question with the result

Hi there! I am developing an application with audio lists and I intend to generate an immediate loading sensation as in the tiktok application. With this project could you achieve that?

Video preload not work properly

video preload not work, it should be like preload the video in background is 5 sec or 10 sec of the video, in this way user data will consume less. you have told over a call me you will add few lines on code for this but still not added i am waiting for this bro please add this as soon as possible. love you

Both videos caching but only 1st one playing when network not available second video caching but not playing val dataSpec = DataSpec(videoUri,0,200*1024)