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视频点播播放器如何实现加密下载?
1、概述
目前视频下载实现可使用播放器接口实现.下载实现能够加密安全下载.本文档演示如何添加一个下载项且完成下载流程.
2、下载实现流程
1.初始化下载管理类,配置下载加密密钥和保存路径。
AliyunDownloadConfig config = new AliyunDownloadConfig();
////设置安全图片，安全图片获取见另外一个文档：https://help.aliyun.com/document_detail/57920.html?spm=5176.doc51789.6.666.TQxC07
config.setSecretImagePath(Environment.getExternalStorageDirectory().getAbsolutePath() + "/DingTalk/encryptedApp.dat");
//设置保存路径。请确保有SD卡访问权限。
config.setDownloadDir(Environment.getExternalStorageDirectory().getAbsolutePath() + "/test_save");
//设置同时下载个数
config.setMaxNums(2);
AliyunDownloadManager.getInstance(this).setDownloadConfig(config);
2.准备下载
//(1)获取下载实例
downloadManager = AliyunDownloadManager.getInstance(this);
//(2)添加下载监听
downloadManager.addDownloadInfoListener(downloadInfoListener);
//(3)组装下载需要的视频信息并且调用prepareDoawloadMedia.如下的参数如何获取见：https://help.aliyun.com/document_detail/57916.html?spm=5176.7757620.6.666.4hd5uh
AliyunDataSource.AliyunDataSourceBuilder adb = new AliyunDataSource.AliyunDataSourceBuilder(this);
adb.setAccessKeyId(akiStr);
adb.setAccessKeySecret(aksStr);
adb.setPlayKey(playKeyStr);
adb.setVideoId(vidStr);
if (adb == null) return;
downloadManager.prepareDownloadMedia(adb.build());
3.调用准备下载之后，如信息没有异常会收到准备成功的回调.在准备成功的回调里面调用开始下载
@Override
public void onPrepared(List<AliyunDownloadMediaInfo> list) {
//第二步 ； 准备完成
Log.d("AliyunDownload","onPrepared");
AliyunDataSource.AliyunDataSourceBuilder adb = getAliyunDataSourceBuilder();
adb.setFormat(list.get(0).getFormat());
adb.setQuality(list.get(1).getQuality());
//返回值为0则为开始下载成功.
downloadManager.startDownloadMedia(adb.build());
}
4.如无异常将会开始下载，走onProgress的回调.成功会走onCompletion的回调.
private AliyunDownloadInfoListener downloadInfoListener = new AliyunDownloadInfoListener() {
@Override
public void onPrepared(List<AliyunDownloadMediaInfo> list) {
//准备完成
}
@Override
public void onStart(AliyunDownloadMediaInfo aliyunDownloadMediaInfo) {
//开始下载
}
@Override
public void onProgress(AliyunDownloadMediaInfo aliyunDownloadMediaInfo, int i) {
//开始下载进度
}
@Override
public void onStop(AliyunDownloadMediaInfo aliyunDownloadMediaInfo) {
//停止下载
}
@Override
public void onCompletion(AliyunDownloadMediaInfo aliyunDownloadMediaInfo) {
//下载成功
}
@Override
public void onError(AliyunDownloadMediaInfo aliyunDownloadMediaInfo, int i, String s) {
//下载出错
}
@Override
public void onWait(AliyunDownloadMediaInfo aliyunDownloadMediaInfo) {
//等待下载
}
@Override
public void onM3u8IndexUpdate(AliyunDownloadMediaInfo outMediaInfo, int index) {
//m3u8更新
}
};
最后更新：2017-08-25 11:32:20