Android谷歌Exoplayer 2.2 HLS和DASH流缓存

问题描述：

我试图缓存HLS和DASH流视频，我已经尝试了很多解决方案，但没有与Exoplayer v2.2工作许多问题重定向到下面的链接，但没有得到任何适当的解。 https://github.com/google/ExoPlayer/issues/420和Using cache in ExoPlayer。Android谷歌Exoplayer 2.2 HLS和DASH流缓存

在一个解决方案 'ExtractorSampleSource' 类没有在谷歌Exoplayer发现2.2

OkHttpClient okHttpClient = new OkHttpClient.Builder().cache(new okhttp3.Cache(context.getCacheDir(), 1024000)).build(); 
OkHttpDataSource okHttpDataSource = new OkHttpDataSource(okHttpClient, "android", null); 
OkHttpDataSource ok2 = new OkHttpDataSource(okHttpClient, "android", null); 
HttpDataSource dataSource = new CacheDataSource(context, okHttpDataSource, ok2); 
ExtractorSampleSource sampleSource = new ExtractorSampleSource(
       uri, 
       dataSource, 
       allocator, 
       buffer_segment_count * buffer_segment_size, 
       new Mp4Extractor(), new Mp3Extractor());

在其他解决方案得到了同样的错误 'DefaultUriDataSource' 类v2.2中没有发现

DataSource dataSource = new DefaultUriDataSource(context, null, new OkHttpDataSource(getClient(context), userAgent, null, null/*, CacheControl.FORCE_CACHE*/));

所有这些解决方案的年龄大概在1到2岁之间，并且不支持最新版本的Google Exoplayer v2.2。

任何人有想法或任何样品或任何解决方案做缓存与HLS和DASH流？

答

使用下面buildDataSourceFactory及其存储缓存

DataSource.Factory buildDataSourceFactory(boolean cache) { 

     if (!cache) { 
     return new DefaultDataSourceFactory(context, BANDWIDTH_METER, 
       buildHttpDataSourceFactory(BANDWIDTH_METER)); 
     }else{ 

     return new DataSource.Factory() { 
      @Override 
      public DataSource createDataSource() { 
       LeastRecentlyUsedCacheEvictor evictor = new LeastRecentlyUsedCacheEvictor(100 * 1024 * 1024); 
       SimpleCache simpleCache = new SimpleCache(new File(context.getCacheDir(), "media_cache"), evictor); 


       return new CacheDataSource(simpleCache, buildCachedHttpDataSourceFactory(BANDWIDTH_METER).createDataSource(), 
         new FileDataSource(), new CacheDataSink(simpleCache, 10 * 1024 * 1024), 
         CacheDataSource.FLAG_BLOCK_ON_CACHE | CacheDataSource.FLAG_IGNORE_CACHE_ON_ERROR, null); 
      } 

     }; 
    } 
    } 

    private DefaultDataSource.Factory buildCachedHttpDataSourceFactory(DefaultBandwidthMeter bandwidthMeter) { 
     return new DefaultDataSourceFactory(context, bandwidthMeter, buildHttpDataSourceFactory(bandwidthMeter)); 
    }

Android谷歌Exoplayer 2.2 HLS和DASH流缓存

相关推荐