shlex.split的反向功能是什么？（反向shell是什么意思）

25-04-07 4

对于想了解shlex.split的反向功能是什么？的读者，本文将提供新的信息，我们将详细介绍反向shell是什么意思，并且为您提供关于"系统进程的功能是什么？"、ASP.Net4.0中可用的新功能是什

对于想了解shlex.split的反向功能是什么？的读者，本文将提供新的信息，我们将详细介绍反向shell是什么意思，并且为您提供关于"系统进程的功能是什么？"、ASP.Net 4.0中可用的新功能是什么？、com.google.android.exoplayer.hls.HlsPlaylist的实例源码、cortana的功能是什么？的有价值信息。

本文目录一览：

shlex.split的反向功能是什么？（反向shell是什么意思）
"系统进程的功能是什么？"
ASP.Net 4.0中可用的新功能是什么？
com.google.android.exoplayer.hls.HlsPlaylist的实例源码
cortana的功能是什么？

shlex.split的反向功能是什么？（反向shell是什么意思）

如何反转a的结果shlex.split？也就是说，在给定我希望引用的字符串的情况下，如何获得一个“类似于Unix
shell的”list引用字符串？

更新0

我找到了一个Python错误，并在此处提出了相应的功能请求。

答案1

小编典典

我们现在（3.3）有一个shlex.quote函数。只是pipes.quote移动和记录了文档（使用代码pipes.quote仍然可以使用）。有关整个讨论，请参见http://bugs.python.org/issue9723。

subprocess.list2cmdline是不应使用的私有函数。但是可以将其移至shlex正式发布。另请参见http://bugs.python.org/issue1724822。

"系统进程的功能是什么？"

system进程是操作系统中的一个重要进程，它具有多种功能和用途。本文将会详细介绍system进程的用途和重要性。

首先，System进程负责管理和控制操作系统的各种资源。它通过对CPU、内存、磁盘和外设等进行管理和分配，确保系统的资源能够得到合理利用。System进程还负责监控各种硬件设备的工作状态，及时发现并处理可能的故障，保证系统的稳定性和可靠性。

其次，System进程负责协调和调度其他进程的执行。在多任务操作系统中，存在着多个用户进程同时运行的情况，每个进程都需要占用一定的CPU时间片来完成自己的任务。System进程会根据一定的调度算法来决定不同进程的执行优先级和执行顺序，从而实现合理分配CPU资源，保证系统的正常运行。

除此之外，System进程还负责处理系统中的各种中断请求。当外部设备或软件程序发出中断请求时，System进程会接收并进行相应的处理。例如，当键盘输入某个命令时，System进程会检测到输入的中断信号，并将其传递给相应的进程进行处理。这样可以实现系统和用户之间的交互操作。

此外，System进程还负责管理操作系统的各项服务。操作系统中包含了许多常用的服务，如文件系统、网络服务、安全服务等。System进程会启动并管理这些服务，以提供给用户更加稳定和高效的工作环境。例如，当用户需要打印文件时，System进程会调用打印服务来完成打印任务。

最后，System进程还负责记录和统计系统的运行信息。它会收集和记录系统的各项指标，如CPU占用率、内存使用情况、磁盘读写速度等，以便管理员和用户进行系统性能分析和优化。通过对这些信息的统计和分析，可以及时发现系统存在的问题并进行相应的调整和优化，提升系统的性能和可靠性。

总之，System进程在操作系统中具有重要的作用和功能。它负责管理和分配系统资源、协调和调度进程、处理中断请求、管理系统服务以及记录和统计系统信息。没有System进程的存在与运行，操作系统将无法正常工作。因此，可以说System进程是操作系统的中枢，对系统的稳定性和功能起着关键性的作用。

以上就是"系统进程的功能是什么？"的详细内容，更多请关注php中文网其它相关文章！

ASP.Net 4.0中可用的新功能是什么？

解决方法

Mircosoft Channel 9上有几个视频：

> ASP.NET 4.0 Roadmap by Scott Hunter
似乎有人在这次谈话中也发了session notes.
> New Features of ASP.NET 4.0 Steven Walther

引用(部分)来自链接博客文章的会话说明：

Web表单

>开发人员可以管理影响呈现的客户端ID的控件ID
>删除ID膨胀和’破坏’
> CSS：

>理想情况下,无需使用CSS适配器
>遵循CSS样式并绕过现有样式属性

>非内联样式属性

>支持非基于表格的HTML呈现

> Web表单的URL路由

> Web表单的友好URL处理
> url路由的配置模型

>查看状态

>在页面上禁用,启用特定控件 – 它们将提供精细控制
viewstate – 今天是倒退
>禁用控件,启用子控件
> GridView / ListView在没有viewstate的情况下工作得更好

> ASP.NET动态数据

阿贾克斯

>继续ASP.NET Ajax创新：RIA
>对JavaScript开发人员的吸引力
>为页面开发人员提供支持
> jQuery包括Intellisense
>模板和数据绑定

>客户端处理,REST或Web服务
>涵盖页面开发人员和组件开发人员方案

> DOM操作,选择器……
> Ajax更高级别的组件

> Ajax Control Toolkit是该策略的一部分 – 它们将使工具包成为一部分
整个ASP.NET包
>新控件

>集中式脚本库和性能分解

ASP.NET MVC

>呼吁那些想要分离关注点,TDD,完全控制
> Ruby on Rails,Django,PHP
>基于ASP.NET MVC 1.0构建
> ASP.NET MVC(模型视图控制器)
>异步控制器
>子控制器&查看
>声明性控件

ASP.NET核心

>解决客户的痛点>提高规模和绩效>缓存可扩展性和性能：>启用VeLocity等缓存

com.google.android.exoplayer.hls.HlsPlaylist的实例源码

项目：luxunPro 文件：HlsRenderBuilder.java

protected void buildrenderers(HlsPlaylist playlist) {
    if (canceled) {
        return;
    }

    boolean hasClosedCaptions = false;
    boolean hasMultipleAudioTracks = false;

    //Calculates the Chunk variant indices
    int[] variantIndices;
    if (playlist instanceof HlsMasterPlaylist) {
        HlsMasterPlaylist masterPlaylist = (HlsMasterPlaylist) playlist;
        hasClosedCaptions = !masterPlaylist.subtitles.isEmpty();
        hasMultipleAudioTracks = !masterPlaylist.audios.isEmpty();
    }

    buildTrackRenderers(playlist,hasClosedCaptions,hasMultipleAudioTracks);
}

项目：Exoplayer_VLC 文件：HlsRendererBuilder.java

@Override
public void onManifest(String contentId,HlsPlaylist manifest) {
  DefaultBandwidthMeter bandwidthMeter = new DefaultBandwidthMeter();

  DataSource dataSource = new UriDataSource(userAgent,bandwidthMeter);
  HlsChunkSource chunkSource = new HlsChunkSource(dataSource,url,manifest,bandwidthMeter,null,HlsChunkSource.ADAPTIVE_MODE_SPLICE);
  HlsSampleSource sampleSource = new HlsSampleSource(chunkSource,true,3);
  MediaCodecVideoTrackRenderer videoRenderer = new MediaCodecVideoTrackRenderer(sampleSource,MediaCodec.VIDEO_SCALING_MODE_SCALE_TO_FIT,5000,player.getMainHandler(),player,50);
  MediaCodecAudioTrackRenderer audioRenderer = new MediaCodecAudioTrackRenderer(sampleSource);

  MetadataTrackRenderer<Map<String,Object>> id3Renderer =
      new MetadataTrackRenderer<Map<String,Object>>(sampleSource,new Id3Parser(),player.getId3MetadataRenderer(),player.getMainHandler().getLooper());

  Eia608TrackRenderer closedCaptionRenderer = new Eia608TrackRenderer(sampleSource,player.getMainHandler().getLooper());

  TrackRenderer[] renderers = new TrackRenderer[DemoPlayer.RENDERER_COUNT];
  renderers[DemoPlayer.TYPE_VIDEO] = videoRenderer;
  renderers[DemoPlayer.TYPE_AUdio] = audioRenderer;
  renderers[DemoPlayer.TYPE_TIMED_MetaDATA] = id3Renderer;
  renderers[DemoPlayer.TYPE_TEXT] = closedCaptionRenderer;
  callback.onRenderers(null,renderers);
}

项目：danish-media-license 文件：HlsRendererBuilder.java

@Override
public void onSingleManifest(HlsPlaylist manifest) {
  if (canceled) {
    return;
  }

  Handler mainHandler = player.getMainHandler();
  LoadControl loadControl = new DefaultLoadControl(new DefaultAllocator(BUFFER_SEGMENT_SIZE));
  DefaultBandwidthMeter bandwidthMeter = new DefaultBandwidthMeter();
  PtsTimestampAdjusterProvider timestampAdjusterProvider = new PtsTimestampAdjusterProvider();

  // Build the video/audio/Metadata renderers.
  DataSource dataSource = createDataSource(context,userAgent,bandwidthMeter);
  HlsChunkSource chunkSource = new HlsChunkSource(true /* isMaster */,dataSource,DefaultHlsTrackSelector.newDefaultInstance(context),timestampAdjusterProvider,loadControl,MAIN_BUFFER_SEGMENTS * BUFFER_SEGMENT_SIZE,mainHandler,DemoPlayer.TYPE_VIDEO);
  MediaCodecVideoTrackRenderer videoRenderer = new MediaCodecVideoTrackRenderer(context,sampleSource,MediaCodecSelector.DEFAULT,50);
  final MediaCodecAudioTrackRenderer audioRenderer = new MediaCodecAudioTrackRenderer(
      sampleSource,AudioCapabilities.getCapabilities(context),AudioManager.STREAM_MUSIC);
  final MetadataTrackRenderer<List<Id3Frame>> id3Renderer = new MetadataTrackRenderer<>(
      sampleSource,mainHandler.getLooper());

  TrackRenderer[] renderers = new TrackRenderer[DemoPlayer.RENDERER_COUNT];
  renderers[DemoPlayer.TYPE_VIDEO] = videoRenderer;
  renderers[DemoPlayer.TYPE_AUdio] = audioRenderer;
  renderers[DemoPlayer.TYPE_MetaDATA] = id3Renderer;
  player.onRenderers(renderers,bandwidthMeter);
}

项目：luxunPro 文件：HlsRenderBuilder.java

@Override
public void onSingleManifest(HlsPlaylist playlist) {
    if (canceled) {
        return;
    }

    buildrenderers(playlist);
}

项目：AdvancedVideoView 文件：HlsRendererBuilder.java

@Override
public void buildrenderers(DemoPlayer player,RendererBuilderCallback callback) {
  this.player = player;
  this.callback = callback;
  HlsPlaylistParser parser = new HlsPlaylistParser();
  ManifestFetcher<HlsPlaylist> playlistFetcher = new ManifestFetcher<HlsPlaylist>(url,new DefaultUriDataSource(context,userAgent),parser);
  playlistFetcher.singleLoad(player.getMainHandler().getLooper(),this);
}

项目：exoPlayerHLS 文件：HlsRendererBuilder.java

@Override
public void buildrenderers(DemoPlayer player,DemoPlayer.RendererBuilderCallback callback) {
  this.player = player;
  this.callback = callback;
  HlsPlaylistParser parser = new HlsPlaylistParser();
  ManifestFetcher<HlsPlaylist> playlistFetcher = new ManifestFetcher<>(url,this);
}

项目：exoPlayerHLS 文件：HlsRendererBuilder.java

@Override
public void onSingleManifest(HlsPlaylist manifest) {
  Handler mainHandler = player.getMainHandler();

  LoadControl loadControl = new DefaultLoadControl(new DefaultAllocator(BUFFER_SEGMENT_SIZE));
  DefaultBandwidthMeter bandwidthMeter = new DefaultBandwidthMeter();

  int[] variantIndices = null;
  if (manifest instanceof HlsMasterPlaylist) {
    HlsMasterPlaylist masterPlaylist = (HlsMasterPlaylist) manifest;
    try {
      variantIndices = VideoFormatSelectorUtil.selectVideoFormatsForDefaultdisplay(
              context,masterPlaylist.variants,false);
    } catch (DecoderQueryException e) {
      callback.onRenderersError(e);
      return;
    }
  }

  DataSource dataSource = new DefaultUriDataSource(context,userAgent);
  HlsChunkSource chunkSource = new HlsChunkSource(dataSource,variantIndices,HlsChunkSource.ADAPTIVE_MODE_SPLICE,audioCapabilities);
  HlsSampleSource sampleSource = new HlsSampleSource(chunkSource,BUFFER_SEGMENTS * BUFFER_SEGMENT_SIZE,DemoPlayer.TYPE_VIDEO);
  MediaCodecVideoTrackRenderer videoRenderer = new MediaCodecVideoTrackRenderer(sampleSource,50);
  MediaCodecAudioTrackRenderer audioRenderer = new MediaCodecAudioTrackRenderer(sampleSource);

  TrackRenderer[] renderers = new TrackRenderer[DemoPlayer.RENDERER_COUNT];
  renderers[DemoPlayer.TYPE_VIDEO] = videoRenderer;
  renderers[DemoPlayer.TYPE_AUdio] = audioRenderer;
  callback.onRenderers(null,renderers,bandwidthMeter);
}

项目：Exoplayer_VLC 文件：HlsRendererBuilder.java

@Override
public void buildrenderers(DemoPlayer player,RendererBuilderCallback callback) {
  this.player = player;
  this.callback = callback;
  HlsPlaylistParser parser = new HlsPlaylistParser();
  ManifestFetcher<HlsPlaylist> playlistFetcher =
      new ManifestFetcher<HlsPlaylist>(parser,contentId,userAgent);
  playlistFetcher.singleLoad(player.getMainHandler().getLooper(),this);
}

项目：ExoPlayerController 文件：HlsRendererBuilder.java

@Override
public void onSingleManifest(HlsPlaylist manifest) {
  if (canceled) {
    return;
  }

  Handler mainHandler = player.getMainHandler();
  LoadControl loadControl = new DefaultLoadControl(new DefaultAllocator(BUFFER_SEGMENT_SIZE));
  DefaultBandwidthMeter bandwidthMeter = new DefaultBandwidthMeter();

  int[] variantIndices = null;
  if (manifest instanceof HlsMasterPlaylist) {
    HlsMasterPlaylist masterPlaylist = (HlsMasterPlaylist) manifest;
    try {
      variantIndices = VideoFormatSelectorUtil.selectVideoFormatsForDefaultdisplay(
          context,false);
    } catch (DecoderQueryException e) {
      player.onRenderersError(e);
      return;
    }
    if (variantIndices.length == 0) {
      player.onRenderersError(new IllegalStateException("No variants selected."));
      return;
    }
  }

  DataSource dataSource = new DefaultUriDataSource(context,50);
  MediaCodecAudioTrackRenderer audioRenderer = new MediaCodecAudioTrackRenderer(sampleSource,AudioCapabilities.getCapabilities(context));
  MetadataTrackRenderer<Map<String,Object>> id3Renderer = new MetadataTrackRenderer<>(
      sampleSource,mainHandler.getLooper());
  Eia608TrackRenderer closedCaptionRenderer = new Eia608TrackRenderer(sampleSource,mainHandler.getLooper());

  TrackRenderer[] renderers = new TrackRenderer[DemoPlayer.RENDERER_COUNT];
  renderers[DemoPlayer.TYPE_VIDEO] = videoRenderer;
  renderers[DemoPlayer.TYPE_AUdio] = audioRenderer;
  renderers[DemoPlayer.TYPE_MetaDATA] = id3Renderer;
  renderers[DemoPlayer.TYPE_TEXT] = closedCaptionRenderer;
  player.onRenderers(renderers,bandwidthMeter);
}

项目：talk-android 文件：HlsRendererBuilder.java

@Override
public void onSingleManifest(HlsPlaylist manifest) {
  if (canceled) {
    return;
  }

  Handler mainHandler = player.getMainHandler();
  LoadControl loadControl = new DefaultLoadControl(new DefaultAllocator(BUFFER_SEGMENT_SIZE));
  DefaultBandwidthMeter bandwidthMeter = new DefaultBandwidthMeter();

  int[] variantIndices = null;
  if (manifest instanceof HlsMasterPlaylist) {
    HlsMasterPlaylist masterPlaylist = (HlsMasterPlaylist) manifest;
    try {
      variantIndices = VideoFormatSelectorUtil.selectVideoFormatsForDefaultdisplay(
          context,bandwidthMeter);
}

项目：miku 文件：HlsRendererBuilder.java

@Override
public void onSingleManifest(HlsPlaylist manifest) {
  if (canceled) {
    return;
  }

  Handler mainHandler = player.getMainHandler();
  LoadControl loadControl = new DefaultLoadControl(new DefaultAllocator(BUFFER_SEGMENT_SIZE));
  DefaultBandwidthMeter bandwidthMeter = new DefaultBandwidthMeter();

  int[] variantIndices = null;
  if (manifest instanceof HlsMasterPlaylist) {
    HlsMasterPlaylist masterPlaylist = (HlsMasterPlaylist) manifest;
    try {
      variantIndices = VideoFormatSelectorUtil.selectVideoFormatsForDefaultdisplay(
        context,MediaPlayer.TYPE_VIDEO);
  MediaCodecVideoTrackRenderer videoRenderer = new MediaCodecVideoTrackRenderer(sampleSource,50);
  MediaCodecAudioTrackRenderer audioRenderer = new MediaCodecAudioTrackRenderer(sampleSource);
  MetadataTrackRenderer<Map<String,mainHandler.getLooper());
  TrackRenderer[] renderers = new TrackRenderer[MediaPlayer.RENDERER_COUNT];
  renderers[MediaPlayer.TYPE_VIDEO] = videoRenderer;
  renderers[MediaPlayer.TYPE_AUdio] = audioRenderer;
  renderers[MediaPlayer.TYPE_MetaDATA] = id3Renderer;
  renderers[MediaPlayer.TYPE_TEXT] = closedCaptionRenderer;
  player.onRenderers(null,bandwidthMeter);
}

项目：Mediathek 文件：HlsRendererBuilder.java

@Override
public void onSingleManifest(HlsPlaylist manifest) {
  if (canceled) {
    return;
  }

  Handler mainHandler = player.getMainHandler();
  LoadControl loadControl = new DefaultLoadControl(new DefaultAllocator(BUFFER_SEGMENT_SIZE));
  DefaultBandwidthMeter bandwidthMeter = new DefaultBandwidthMeter();

  int[] variantIndices = null;
  if (manifest instanceof HlsMasterPlaylist) {
    HlsMasterPlaylist masterPlaylist = (HlsMasterPlaylist) manifest;
    try {
      variantIndices = VideoFormatSelectorUtil.selectVideoFormatsForDefaultdisplay(
          context,Player.TYPE_VIDEO);
  MediaCodecVideoTrackRenderer videoRenderer = new MediaCodecVideoTrackRenderer(context,mainHandler.getLooper());

  TrackRenderer[] renderers = new TrackRenderer[Player.RENDERER_COUNT];
  renderers[Player.TYPE_VIDEO] = videoRenderer;
  renderers[Player.TYPE_AUdio] = audioRenderer;
  renderers[Player.TYPE_MetaDATA] = id3Renderer;
  renderers[Player.TYPE_TEXT] = closedCaptionRenderer;
  player.onRenderers(renderers,bandwidthMeter);
}

项目：sbs-android-tv 文件：HlsRendererBuilder.java

@Override
public void onSingleManifest(HlsPlaylist manifest) {
    if (canceled) {
        return;
    }

    Handler mainHandler = player.getMainHandler();
    LoadControl loadControl = new DefaultLoadControl(new DefaultAllocator(BUFFER_SEGMENT_SIZE));
    DefaultBandwidthMeter bandwidthMeter = new DefaultBandwidthMeter();

    int[] variantIndices = null;
    if (manifest instanceof HlsMasterPlaylist) {
        HlsMasterPlaylist masterPlaylist = (HlsMasterPlaylist) manifest;
        try {
            variantIndices = VideoFormatSelectorUtil.selectVideoFormatsForDefaultdisplay(
                    context,false);
        } catch (DecoderQueryException e) {
            player.onRenderersError(e);
            return;
        }
        if (variantIndices.length == 0) {
            player.onRenderersError(new IllegalStateException("No variants selected."));
            return;
        }
    }

    DataSource dataSource = new DefaultUriDataSource(context,userAgent);
    HlsChunkSource chunkSource = new HlsChunkSource(dataSource,audioCapabilities);
    HlsSampleSource sampleSource = new HlsSampleSource(chunkSource,VideoPlayer.TYPE_VIDEO);
    MediaCodecVideoTrackRenderer videoRenderer = new MediaCodecVideoTrackRenderer(sampleSource,50);
    MediaCodecAudioTrackRenderer audioRenderer = new MediaCodecAudioTrackRenderer(sampleSource);
    MetadataTrackRenderer<Map<String,Object>> id3Renderer = new MetadataTrackRenderer<>(
            sampleSource,mainHandler.getLooper());
    Eia608TrackRenderer closedCaptionRenderer = new Eia608TrackRenderer(sampleSource,mainHandler.getLooper());

    TrackRenderer[] renderers = new TrackRenderer[VideoPlayer.RENDERER_COUNT];
    renderers[VideoPlayer.TYPE_VIDEO] = videoRenderer;
    renderers[VideoPlayer.TYPE_AUdio] = audioRenderer;
    renderers[VideoPlayer.TYPE_MetaDATA] = id3Renderer;
    renderers[VideoPlayer.TYPE_TEXT] = closedCaptionRenderer;
    player.onRenderers(null,bandwidthMeter);
}

项目：WliveTV 文件：HlsRendererBuilder.java

@Override
public void onSingleManifest(HlsPlaylist manifest) {
  if (canceled) {
    return;
  }

  Handler mainHandler = player.getMainHandler();
  LoadControl loadControl = new DefaultLoadControl(new DefaultAllocator(BUFFER_SEGMENT_SIZE));
  DefaultBandwidthMeter bandwidthMeter = new DefaultBandwidthMeter();

  int[] variantIndices = null;
  if (manifest instanceof HlsMasterPlaylist) {
    HlsMasterPlaylist masterPlaylist = (HlsMasterPlaylist) manifest;
    try {
      variantIndices = VideoFormatSelectorUtil.selectVideoFormatsForDefaultdisplay(
          context,bandwidthMeter);
}

项目：luxunPro 文件：HlsRenderBuilder.java

protected void buildTrackRenderers(HlsPlaylist playlist,boolean hasClosedCaptions,boolean hasMultipleAudioTracks) {
    LoadControl loadControl = new DefaultLoadControl(new DefaultAllocator(BUFFER_SEGMENT_SIZE));
    DefaultBandwidthMeter bandwidthMeter = new DefaultBandwidthMeter(player.getMainHandler(),player);
    PtsTimestampAdjusterProvider timestampAdjusterProvider = new PtsTimestampAdjusterProvider();


    //Create the Sample Source to be used by the Video Renderer
    DataSource dataSourceVideo = createDataSource(okHttpClient,userAgent);
    HlsChunkSource chunkSourceVideo = new HlsChunkSource(true,dataSourceVideo,playlist,timestampAdjusterProvider);
    HlsSampleSource sampleSourceVideo = new HlsSampleSource(chunkSourceVideo,BUFFER_SEGMENTS_TOTAL * BUFFER_SEGMENT_SIZE,EMExoPlayer.RENDER_VIDEO);


    //Create the Sample Source to be used by the Audio Renderer
    DataSource dataSourceAudio = new DefaultUriDataSource(context,userAgent);
    HlsChunkSource chunkSourceAudio = new HlsChunkSource(false,dataSourceAudio,DefaultHlsTrackSelector.newAudioInstance(),timestampAdjusterProvider);
    HlsSampleSource sampleSourceAudio = new HlsSampleSource(chunkSourceAudio,BUFFER_SEGMENTS_AUdio * BUFFER_SEGMENT_SIZE,EMExoPlayer.RENDER_AUdio);
    SampleSource[] sampleSourcesAudio = hasMultipleAudioTracks ? new SampleSource[] {sampleSourceVideo,sampleSourceAudio} : new SampleSource[] {sampleSourceVideo};


    //Create the Sample Source to be used by the Closed Captions Renderer
    DataSource dataSourceCC = createDataSource(okHttpClient,userAgent);
    HlsChunkSource chunkSourceCC = new HlsChunkSource(false,dataSourceCC,DefaultHlsTrackSelector.newSubtitleInstance(),timestampAdjusterProvider);
    HlsSampleSource sampleSourceCC = new HlsSampleSource(chunkSourceCC,BUFFER_SEGMENTS_TEXT * BUFFER_SEGMENT_SIZE,EMExoPlayer.RENDER_CLOSED_CAPTION);


    //Build the renderers
    MediaCodecVideoTrackRenderer videoRenderer = new MediaCodecVideoTrackRenderer(context,sampleSourceVideo,MAX_JOIN_TIME,DROPPED_FRAME_NOTIFICATION_AMOUNT);
    emmediaCodecAudioTrackRenderer audioRenderer = new emmediaCodecAudioTrackRenderer(sampleSourcesAudio,streamType);
    TrackRenderer captionsRenderer = hasClosedCaptions ? new TextTrackRenderer(sampleSourceCC,player.getMainHandler().getLooper()) :
            new Eia608TrackRenderer(sampleSourceVideo,player.getMainHandler().getLooper());
    MetadataTrackRenderer<List<Id3Frame>> id3Renderer = new MetadataTrackRenderer<>(sampleSourceVideo,player.getMainHandler().getLooper());


    //Populate the Render list to pass back to the callback
    TrackRenderer[] renderers = new TrackRenderer[EMExoPlayer.RENDER_COUNT];
    renderers[EMExoPlayer.RENDER_VIDEO] = videoRenderer;
    renderers[EMExoPlayer.RENDER_AUdio] = audioRenderer;
    renderers[EMExoPlayer.RENDER_CLOSED_CAPTION] = captionsRenderer;
    renderers[EMExoPlayer.RENDER_TIMED_MetaDATA] = id3Renderer;
    player.onRenderers(renderers,bandwidthMeter);
}

项目：AdvancedVideoView 文件：HlsRendererBuilder.java

@Override
public void onSingleManifest(HlsPlaylist manifest) {
  Handler mainHandler = player.getMainHandler();
  DefaultBandwidthMeter bandwidthMeter = new DefaultBandwidthMeter();

  int[] variantIndices = null;
  if (manifest instanceof HlsMasterPlaylist) {
    HlsMasterPlaylist masterPlaylist = (HlsMasterPlaylist) manifest;
    try {
      variantIndices = VideoFormatSelectorUtil.selectVideoFormatsForDefaultdisplay(
              context,3,REQUESTED_BUFFER_SIZE,REQUESTED_BUFFER_DURATION_MS,mainHandler.getLooper());

  Eia608TrackRenderer closedCaptionRenderer = new Eia608TrackRenderer(sampleSource,mainHandler.getLooper());

  // Build the debug renderer.
  TrackRenderer debugRenderer = debugTextView != null
      ? new DebugTrackRenderer(debugTextView,videoRenderer) : null;

  TrackRenderer[] renderers = new TrackRenderer[DemoPlayer.RENDERER_COUNT];
  renderers[DemoPlayer.TYPE_VIDEO] = videoRenderer;
  renderers[DemoPlayer.TYPE_AUdio] = audioRenderer;
  renderers[DemoPlayer.TYPE_TIMED_MetaDATA] = id3Renderer;
  renderers[DemoPlayer.TYPE_TEXT] = closedCaptionRenderer;
  renderers[DemoPlayer.TYPE_DEBUG] = debugRenderer;
  callback.onRenderers(null,renderers);
}

项目：exoplayer-textureview 文件：HlsChunkSourceCreator.java

HlsChunkSource create(DataSource dataSource,HlsPlaylist playlist,BandwidthMeter bandwidthMeter,PtsTimestampAdjusterProvider timestampAdjusterProvider,int[] variantIndices);

项目：iview-android-tv 文件：HlsRendererBuilder.java

@Override
public void onSingleManifest(HlsPlaylist manifest) {
    if (canceled) {
        return;
    }

    Handler mainHandler = player.getMainHandler();
    LoadControl loadControl = new DefaultLoadControl(new DefaultAllocator(BUFFER_SEGMENT_SIZE));
    DefaultBandwidthMeter bandwidthMeter = new DefaultBandwidthMeter();

    int[] variantIndices = null;
    if (manifest instanceof HlsMasterPlaylist) {
        HlsMasterPlaylist masterPlaylist = (HlsMasterPlaylist) manifest;
        try {
            variantIndices = VideoFormatSelectorUtil.selectVideoFormatsForDefaultdisplay(
                    context,bandwidthMeter);
}

项目：Android-Birdcopy-Application 文件：HlsRendererBuilder.java

@Override
public void onSingleManifest(HlsPlaylist manifest) {
  if (canceled) {
    return;
  }

  Handler mainHandler = player.getMainHandler();
  LoadControl loadControl = new DefaultLoadControl(new DefaultAllocator(BUFFER_SEGMENT_SIZE));
  DefaultBandwidthMeter bandwidthMeter = new DefaultBandwidthMeter();

  int[] variantIndices = null;
  if (manifest instanceof HlsMasterPlaylist) {
    HlsMasterPlaylist masterPlaylist = (HlsMasterPlaylist) manifest;
    try {
      variantIndices = VideoFormatSelectorUtil.selectVideoFormatsForDefaultdisplay(
          context,FlyingPlayer.TYPE_VIDEO);
  MediaCodecVideoTrackRenderer videoRenderer = new MediaCodecVideoTrackRenderer(context,mainHandler.getLooper());

  TrackRenderer[] renderers = new TrackRenderer[FlyingPlayer.RENDERER_COUNT];
  renderers[FlyingPlayer.TYPE_VIDEO] = videoRenderer;
  renderers[FlyingPlayer.TYPE_AUdio] = audioRenderer;
  renderers[FlyingPlayer.TYPE_MetaDATA] = id3Renderer;
  renderers[FlyingPlayer.TYPE_TEXT] = closedCaptionRenderer;
  player.onRenderers(renderers,bandwidthMeter);
}

项目：OkPlayer 文件：HlsRendererBuilder.java

@Override
        public void onSingleManifest(HlsPlaylist manifest) {
            if (canceled) {
                return;
            }

            Handler mainHandler = player.getMainHandler();
            //Allocator资源的分配,设置默认的资源分配(初始化一个空的资源池来装)
            //数据加载控制
            LoadControl loadControl = new DefaultLoadControl(new DefaultAllocator(BUFFER_SEGMENT_SIZE));
            //如果数据传输是开放的,那创建一个带宽采样并更新的时候,可以记录传输的字节数
            DefaultBandwidthMeter bandwidthMeter = new DefaultBandwidthMeter();
            //对于主播放列表,以最大的可能去发现设备能够播放的类型
            int[] variantIndices = null;
            if (manifest instanceof HlsMasterPlaylist) {
                HlsMasterPlaylist masterPlaylist = (HlsMasterPlaylist) manifest;
                try {
                    variantIndices = VideoFormatSelectorUtil.selectVideoFormatsForDefaultdisplay(
                            context,false);
                } catch (DecoderQueryException e) {
                    //解码器查询错误
                    player.onRenderersError(e);
                    return;
                }
                if (variantIndices.length == 0) {
                    //不支持播放,没有可以选择的变量
                    player.onRenderersError(new IllegalStateException("No variants selected."));
                    return;
                }
            }

            //创建采样源用于渲染
            DataSource dataSource = new DefaultUriDataSource(context,userAgent);
            HlsChunkSource chunkSource = new HlsChunkSource(dataSource,HlsChunkSource.ADAPTIVE_MODE_SPLICE);
            HlsSampleSource sampleSource = new HlsSampleSource(chunkSource,OkPlayer.TYPE_VIDEO);

            //创建渲染器
            //5000是最大加载事件
            MediaCodecVideoTrackRenderer videoRenderer = new MediaCodecVideoTrackRenderer(context,50);
            MediaCodecAudioTrackRenderer audioRenderer = new MediaCodecAudioTrackRenderer(sampleSource,AudioCapabilities.getCapabilities(context));
//            MetadataTrackRenderer<Map<String,Object>> id3Renderer = new MetadataTrackRenderer<>(
//                    sampleSource,mainHandler.getLooper());
//            Eia608TrackRenderer closedCaptionRenderer = new Eia608TrackRenderer(sampleSource,//                    mainHandler.getLooper());

            //填充渲染器列表并回调
            TrackRenderer[] renderers = new TrackRenderer[OkPlayer.RENDERER_COUNT];
            renderers[OkPlayer.TYPE_VIDEO] = videoRenderer;
            renderers[OkPlayer.TYPE_AUdio] = audioRenderer;
//            renderers[OkPlayer.TYPE_MetaDATA] = id3Renderer;
//            renderers[OkPlayer.TYPE_TEXT] = closedCaptionRenderer;
            player.onRenderers(renderers,bandwidthMeter);
        }

项目：ExoPlayer 文件：HlsRendererBuilder.java

@Override
public void onSingleManifest(HlsPlaylist manifest) {
  if (canceled) {
    return;
  }

  Handler mainHandler = player.getMainHandler();
  LoadControl loadControl = new DefaultLoadControl(new DefaultAllocator(BUFFER_SEGMENT_SIZE));
  DefaultBandwidthMeter bandwidthMeter = new DefaultBandwidthMeter();

  int[] variantIndices = null;
  if (manifest instanceof HlsMasterPlaylist) {
    HlsMasterPlaylist masterPlaylist = (HlsMasterPlaylist) manifest;
    try {
      variantIndices = VideoFormatSelectorUtil.selectVideoFormatsForDefaultdisplay(
          context,mainHandler.getLooper());

  TrackRenderer[] renderers = new TrackRenderer[DemoPlayer.RENDERER_COUNT];
  renderers[DemoPlayer.TYPE_VIDEO] = videoRenderer;
  renderers[DemoPlayer.TYPE_AUdio] = audioRenderer;
  renderers[DemoPlayer.TYPE_MetaDATA] = id3Renderer;
  renderers[DemoPlayer.TYPE_TEXT] = closedCaptionRenderer;
  player.onRenderers(null,bandwidthMeter);
}

cortana的功能是什么？

在使用微软公司开发的windows 10操作系统过程中，不少使用者对于其中名为cortana的全新技术感到好奇和疑惑，cortana在中文语境中的正式称呼为“小娜”，实际上是windows 10系统内置的一款人工智能（ai assistant）服务程序

cortana是什么软件

cortana小娜常见问题及解决方法
怎么开启小娜
没反应解决步骤
不支持中国解决方法
搜索框放到cortana里的方法

cortana是什么软件

答："Cortana小娜"是由微软公司精心打造的一款云端平台个人智能助手，具备登陆与非登陆两种使用模式。

当您处于登录状态时，您便可在本人设备以及所有Microsoft相关服务中享受到小娜所带来的便捷服务。通过向其提问，或者进行对话交流，均能实现智能化的帮助和指导。

cortana是什么软件

Cortana小娜介绍：

1、"Cortana小娜"具备多样化的功能特性，其中一部分会根据您所使用的设备型号及其相应功能特性，以及您所下载的"Cortana小娜"的特定版本进行量身定制。

2、即使未登录账户状态下，您仍然可以通过在任务栏顶部的搜索字段中输入检索关键词来查找并访问电脑设备中的文件资源，同时也能畅快地参与在线聊天互动。

3、Cortana 的最佳运行效果则需要您在登录后授权其使用来自您的计算机设备（可兼容安卓与iOS设备）、Microsoft相关服务、第三方合作伙伴服务以及您所自行选择链接记录的各项数据信息。

cortana是什么软件

4、为尊贵的您提供高级定制化服务，"Cortana小娜"将收集有关阁下的部分精准数据，例如您的历史搜索记录、日程安排、联系人信息以及所在地理位置等。

5、有关资料的分享与否皆由阁下自由决定。若您选择暂不登陆至Windows平台上的"Cortana小娜"服务，仍可通过文本交互与"Cortana小娜"交流，并借助Windows搜索功能查找Microsoft服务及本地Windows设备所储存的网页、文档以及电子邮件等内容。

6、在Windows操作系统中，"Cortana小娜"依托Windows Search引擎，协助阁下在互联网上和本地设备上进行有效检索;提供即时答案、多语种翻译以及复杂运算的精确支持;还能为您设置定时提醒，执行无需深度个人定制的事务处理，即使在无账号登录且从未授权"Cortana小娜"获取个人信息的情况下也能照常工作。

cortana是什么软件

6、当你开始输入或口述内容时，"Cortana小娜"能够立刻为你呈现出搜索建议。为实现这一功能，她会将你所输入的文字或口头描述的内容提交至必应服务，经过数据整合研究与分析，该服务可即时作出解释并据此给予相应的自动化建议。

7、关于如何启动"Cortana小娜"的问题，原始操作系统在解压缩过程中通常会出现"Cortana小娜"的相关提醒，只需遵循引导步骤即可成功启用;若你需要使用其全功能版本，则需注册成为微软的会员;而对于后期安装的系统而言，如果在安装完成后仍然未找到"Cortana小娜"，那么此时便需要手动进行设置与启用了。

cortana是什么软件

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