AndroidStreamCache

为 MediaPlayer 提供一个扩展，实现边放边缓存的功能。

如何使用

1. add gradle dependencies

implementation "tech.summerly:streamcache:$latest_version"

2. 初始化一些变量

override fun onCreate(){
    //to init cache folder
    CacheGlobalSetting.CACHE_PATH = externalCacheDir.path
    CacheGlobalSetting.CACHE_SIZE = 800_000_000
}

3. create a custom MediaDataSource

private class MediaDataSourceDelegate(dataSource: DataSource)
    : MediaDataSource(), DataSource by dataSource

4. done

   val dataSource = CachedDataSource(Uri.parse(url))
   mediaPlayer.setDataSource(MediaDataSourceDelegate(dataSource))

附

val dataSource = CachedDataSource(uri = Uri.parse(url),
                                 cacheNameGenerator = md5NameGenerator,
                                 httpHeaderInjector = emptyHeaderInjector,
                                 cacheStrategy = LruCacheStrategy)

• CacheNameGenerator 为指定的 url 生成一个独特的名字
• HeaderInjector 访问 url 所附带的 http 头
• CacheStrategy 成功缓存后的策略

for other MediaPlayer

例如 : ijkMediaPlayer

//create a custom MediaDataSource
private class MediaDataSourceDelegate(dataSource: DataSource)
    : IMediaDataSource, DataSource by dataSource

//the simple to use
val dataSource = CachedDataSource(Uri.parse(url))
mediaPlayer.setDataSource(MediaDataSourceDelegate(dataSource))

LICENSE

Apache License Version 2.0