Java VideoFormatSelectorUtil.selectVideoFormatsForDefaultDisplay方法代码示例

import com.google.android.exoplayer.chunk.VideoFormatSelectorUtil; //导入方法依赖的package包/类
@Override
public void selectTracks(MediaPresentationDescription manifest, int periodIndex, Output output)
    throws IOException {
  Period period = manifest.getPeriod(periodIndex);
  for (int i = 0; i < period.adaptationSets.size(); i++) {
    AdaptationSet adaptationSet = period.adaptationSets.get(i);
    if (adaptationSet.type == adaptationSetType) {
      if (adaptationSetType == AdaptationSet.TYPE_VIDEO) {
        int[] representations;
        if (filterVideoRepresentations) {
          representations = VideoFormatSelectorUtil.selectVideoFormatsForDefaultDisplay(
              context, adaptationSet.representations, null,
              filterProtectedHdContent && adaptationSet.hasContentProtection());
        } else {
          representations = Util.firstIntegersArray(adaptationSet.representations.size());
        }
        int representationCount = representations.length;
        if (representationCount > 1) {
          output.adaptiveTrack(manifest, periodIndex, i, representations);
        }
        for (int j = 0; j < representationCount; j++) {
          output.fixedTrack(manifest, periodIndex, i, representations[j]);
        }
      } else {
        for (int j = 0; j < adaptationSet.representations.size(); j++) {
          output.fixedTrack(manifest, periodIndex, i, j);
        }
      }
    }
  }
}
 

import com.google.android.exoplayer.chunk.VideoFormatSelectorUtil; //导入方法依赖的package包/类
@Override
public void selectTracks(SmoothStreamingManifest manifest, Output output) throws IOException {
  for (int i = 0; i < manifest.streamElements.length; i++) {
    TrackElement[] tracks = manifest.streamElements[i].tracks;
    if (manifest.streamElements[i].type == streamElementType) {
      if (streamElementType == StreamElement.TYPE_VIDEO) {
        int[] trackIndices;
        if (filterVideoRepresentations) {
          trackIndices = VideoFormatSelectorUtil.selectVideoFormatsForDefaultDisplay(
              context, Arrays.asList(tracks), null,
              filterProtectedHdContent && manifest.protectionElement != null);
        } else {
          trackIndices = Util.firstIntegersArray(tracks.length);
        }
        int trackCount = trackIndices.length;
        if (trackCount > 1) {
          output.adaptiveTrack(manifest, i, trackIndices);
        }
        for (int j = 0; j < trackCount; j++) {
          output.fixedTrack(manifest, i, trackIndices[j]);
        }
      } else {
        for (int j = 0; j < tracks.length; j++) {
          output.fixedTrack(manifest, i, j);
        }
      }
    }
  }
}
 

import com.google.android.exoplayer.chunk.VideoFormatSelectorUtil; //导入方法依赖的package包/类
@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, null, false);
    } catch (DecoderQueryException e) {
      callback.onRenderersError(e);
      return;
    }
  }

  DataSource dataSource = new DefaultUriDataSource(context, bandwidthMeter, userAgent);
  HlsChunkSource chunkSource = new HlsChunkSource(dataSource, url, manifest, bandwidthMeter,
      variantIndices, HlsChunkSource.ADAPTIVE_MODE_SPLICE, audioCapabilities);
  HlsSampleSource sampleSource = new HlsSampleSource(chunkSource, loadControl,
      BUFFER_SEGMENTS * BUFFER_SEGMENT_SIZE, true, mainHandler, player, DemoPlayer.TYPE_VIDEO);
  MediaCodecVideoTrackRenderer videoRenderer = new MediaCodecVideoTrackRenderer(sampleSource,
      MediaCodec.VIDEO_SCALING_MODE_SCALE_TO_FIT, 5000, mainHandler, player, 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, null, renderers, bandwidthMeter);
}
 

import com.google.android.exoplayer.chunk.VideoFormatSelectorUtil; //导入方法依赖的package包/类
@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, masterPlaylist.variants, null, 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, bandwidthMeter, userAgent);
  HlsChunkSource chunkSource = new HlsChunkSource(dataSource, url, manifest, bandwidthMeter,
      variantIndices, HlsChunkSource.ADAPTIVE_MODE_SPLICE);
  HlsSampleSource sampleSource = new HlsSampleSource(chunkSource, loadControl,
      BUFFER_SEGMENTS * BUFFER_SEGMENT_SIZE, mainHandler, player, DemoPlayer.TYPE_VIDEO);
  MediaCodecVideoTrackRenderer videoRenderer = new MediaCodecVideoTrackRenderer(context,
      sampleSource, MediaCodec.VIDEO_SCALING_MODE_SCALE_TO_FIT, 5000, mainHandler, player, 50);
  MediaCodecAudioTrackRenderer audioRenderer = new MediaCodecAudioTrackRenderer(sampleSource,
      null, true, player.getMainHandler(), player, AudioCapabilities.getCapabilities(context));
  MetadataTrackRenderer<Map<String, Object>> id3Renderer = new MetadataTrackRenderer<>(
      sampleSource, new Id3Parser(), player, mainHandler.getLooper());
  Eia608TrackRenderer closedCaptionRenderer = new Eia608TrackRenderer(sampleSource, player,
      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);
}
 

import com.google.android.exoplayer.chunk.VideoFormatSelectorUtil; //导入方法依赖的package包/类
@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, masterPlaylist.variants, null, 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, bandwidthMeter, userAgent);
  HlsChunkSource chunkSource = new HlsChunkSource(dataSource, url, manifest, bandwidthMeter,
      variantIndices, HlsChunkSource.ADAPTIVE_MODE_SPLICE, audioCapabilities);
  HlsSampleSource sampleSource = new HlsSampleSource(chunkSource, loadControl,
      BUFFER_SEGMENTS * BUFFER_SEGMENT_SIZE, mainHandler, player, MediaPlayer.TYPE_VIDEO);
  MediaCodecVideoTrackRenderer videoRenderer = new MediaCodecVideoTrackRenderer(sampleSource,
      MediaCodec.VIDEO_SCALING_MODE_SCALE_TO_FIT, 5000, mainHandler, player, 50);
  MediaCodecAudioTrackRenderer audioRenderer = new MediaCodecAudioTrackRenderer(sampleSource);
  MetadataTrackRenderer<Map<String, Object>> id3Renderer = new MetadataTrackRenderer<>(
      sampleSource, new Id3Parser(), player, mainHandler.getLooper());
  Eia608TrackRenderer closedCaptionRenderer = new Eia608TrackRenderer(sampleSource, player,
      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, null, renderers, bandwidthMeter);
}
 

import com.google.android.exoplayer.chunk.VideoFormatSelectorUtil; //导入方法依赖的package包/类
@Override
public void selectTracks(HlsMasterPlaylist playlist, Output output) throws IOException {
  if (type == TYPE_AUDIO || type == TYPE_SUBTITLE) {
    List<Variant> variants = type == TYPE_AUDIO ? playlist.audios : playlist.subtitles;
    if (variants != null && !variants.isEmpty()) {
      for (int i = 0; i < variants.size(); i++) {
        output.fixedTrack(playlist, variants.get(i));
      }
    }
    return;
  }

  // Type is TYPE_DEFAULT.

  ArrayList<Variant> enabledVariantList = new ArrayList<>();
  int[] variantIndices = VideoFormatSelectorUtil.selectVideoFormatsForDefaultDisplay(
      context, playlist.variants, null, false);
  for (int i = 0; i < variantIndices.length; i++) {
    enabledVariantList.add(playlist.variants.get(variantIndices[i]));
  }

  ArrayList<Variant> definiteVideoVariants = new ArrayList<>();
  ArrayList<Variant> definiteAudioOnlyVariants = new ArrayList<>();
  for (int i = 0; i < enabledVariantList.size(); i++) {
    Variant variant = enabledVariantList.get(i);
    if (variant.format.height > 0 || variantHasExplicitCodecWithPrefix(variant, "avc")) {
      definiteVideoVariants.add(variant);
    } else if (variantHasExplicitCodecWithPrefix(variant, "mp4a")) {
      definiteAudioOnlyVariants.add(variant);
    }
  }

  if (!definiteVideoVariants.isEmpty()) {
    // We've identified some variants as definitely containing video. Assume variants within the
    // master playlist are marked consistently, and hence that we have the full set. Filter out
    // any other variants, which are likely to be audio only.
    enabledVariantList = definiteVideoVariants;
  } else if (definiteAudioOnlyVariants.size() < enabledVariantList.size()) {
    // We've identified some variants, but not all, as being audio only. Filter them out to leave
    // the remaining variants, which are likely to contain video.
    enabledVariantList.removeAll(definiteAudioOnlyVariants);
  } else {
    // Leave the enabled variants unchanged. They're likely either all video or all audio.
  }

  if (enabledVariantList.size() > 1) {
    Variant[] enabledVariants = new Variant[enabledVariantList.size()];
    enabledVariantList.toArray(enabledVariants);
    output.adaptiveTrack(playlist, enabledVariants);
  }
  for (int i = 0; i < enabledVariantList.size(); i++) {
    output.fixedTrack(playlist, enabledVariantList.get(i));
  }
}
 

import com.google.android.exoplayer.chunk.VideoFormatSelectorUtil; //导入方法依赖的package包/类
@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, masterPlaylist.variants, null, 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, bandwidthMeter, userAgent);
  HlsChunkSource chunkSource = new HlsChunkSource(dataSource, url, manifest, bandwidthMeter,
      variantIndices, HlsChunkSource.ADAPTIVE_MODE_SPLICE);
  HlsSampleSource sampleSource = new HlsSampleSource(chunkSource, loadControl,
      BUFFER_SEGMENTS * BUFFER_SEGMENT_SIZE, mainHandler, player, Player.TYPE_VIDEO);
  MediaCodecVideoTrackRenderer videoRenderer = new MediaCodecVideoTrackRenderer(context,
      sampleSource, MediaCodec.VIDEO_SCALING_MODE_SCALE_TO_FIT, 5000, mainHandler, player, 50);
  MediaCodecAudioTrackRenderer audioRenderer = new MediaCodecAudioTrackRenderer(sampleSource,
      null, true, player.getMainHandler(), player, AudioCapabilities.getCapabilities(context));
  MetadataTrackRenderer<Map<String, Object>> id3Renderer = new MetadataTrackRenderer<>(
      sampleSource, new Id3Parser(), player, mainHandler.getLooper());
  Eia608TrackRenderer closedCaptionRenderer = new Eia608TrackRenderer(sampleSource, player,
      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);
}
 

import com.google.android.exoplayer.chunk.VideoFormatSelectorUtil; //导入方法依赖的package包/类
@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, masterPlaylist.variants, null, 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, bandwidthMeter, userAgent);
    HlsChunkSource chunkSource = new HlsChunkSource(dataSource, url, manifest, bandwidthMeter,
            variantIndices, HlsChunkSource.ADAPTIVE_MODE_SPLICE, audioCapabilities);
    HlsSampleSource sampleSource = new HlsSampleSource(chunkSource, loadControl,
            BUFFER_SEGMENTS * BUFFER_SEGMENT_SIZE, mainHandler, player, VideoPlayer.TYPE_VIDEO);
    MediaCodecVideoTrackRenderer videoRenderer = new MediaCodecVideoTrackRenderer(sampleSource,
            MediaCodec.VIDEO_SCALING_MODE_SCALE_TO_FIT, 5000, mainHandler, player, 50);
    MediaCodecAudioTrackRenderer audioRenderer = new MediaCodecAudioTrackRenderer(sampleSource);
    MetadataTrackRenderer<Map<String, Object>> id3Renderer = new MetadataTrackRenderer<>(
            sampleSource, new Id3Parser(), player, mainHandler.getLooper());
    Eia608TrackRenderer closedCaptionRenderer = new Eia608TrackRenderer(sampleSource, player,
            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, null, renderers, bandwidthMeter);
}
 

import com.google.android.exoplayer.chunk.VideoFormatSelectorUtil; //导入方法依赖的package包/类
@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, masterPlaylist.variants, null, false);
    } catch (DecoderQueryException e) {
      callback.onRenderersError(e);
      return;
    }
  }

  DataSource dataSource = new DefaultUriDataSource(context, bandwidthMeter, userAgent);
  HlsChunkSource chunkSource = new HlsChunkSource(dataSource, url, manifest, bandwidthMeter,
      variantIndices, HlsChunkSource.ADAPTIVE_MODE_SPLICE, audioCapabilities);
  HlsSampleSource sampleSource = new HlsSampleSource(chunkSource, true, 3, REQUESTED_BUFFER_SIZE,
      REQUESTED_BUFFER_DURATION_MS, mainHandler, player, DemoPlayer.TYPE_VIDEO);
  MediaCodecVideoTrackRenderer videoRenderer = new MediaCodecVideoTrackRenderer(sampleSource,
      MediaCodec.VIDEO_SCALING_MODE_SCALE_TO_FIT, 5000, mainHandler, player, 50);
  MediaCodecAudioTrackRenderer audioRenderer = new MediaCodecAudioTrackRenderer(sampleSource);

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

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

  // Build the debug renderer.
  TrackRenderer debugRenderer = debugTextView != null
      ? new DebugTrackRenderer(debugTextView, player, 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, null, renderers);
}
 

import com.google.android.exoplayer.chunk.VideoFormatSelectorUtil; //导入方法依赖的package包/类
@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, masterPlaylist.variants, null, 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, bandwidthMeter, userAgent);
  HlsChunkSource chunkSource = new HlsChunkSource(dataSource, url, manifest, bandwidthMeter,
      variantIndices, HlsChunkSource.ADAPTIVE_MODE_SPLICE);
  HlsSampleSource sampleSource = new HlsSampleSource(chunkSource, loadControl,
      BUFFER_SEGMENTS * BUFFER_SEGMENT_SIZE, mainHandler, player, FlyingPlayer.TYPE_VIDEO);
  MediaCodecVideoTrackRenderer videoRenderer = new MediaCodecVideoTrackRenderer(context,
      sampleSource, MediaCodec.VIDEO_SCALING_MODE_SCALE_TO_FIT, 5000, mainHandler, player, 50);
  MediaCodecAudioTrackRenderer audioRenderer = new MediaCodecAudioTrackRenderer(sampleSource,
      null, true, player.getMainHandler(), player, AudioCapabilities.getCapabilities(context));
  MetadataTrackRenderer<Map<String, Object>> id3Renderer = new MetadataTrackRenderer<>(
      sampleSource, new Id3Parser(), player, mainHandler.getLooper());
  Eia608TrackRenderer closedCaptionRenderer = new Eia608TrackRenderer(sampleSource, player,
      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);
}
 

import com.google.android.exoplayer.chunk.VideoFormatSelectorUtil; //导入方法依赖的package包/类
@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, masterPlaylist.variants, null, 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, bandwidthMeter, userAgent);
            HlsChunkSource chunkSource = new HlsChunkSource(dataSource, url, manifest, bandwidthMeter,
                    variantIndices, HlsChunkSource.ADAPTIVE_MODE_SPLICE);
            HlsSampleSource sampleSource = new HlsSampleSource(chunkSource, loadControl,
                    BUFFER_SEGMENTS * BUFFER_SEGMENT_SIZE, mainHandler, player, OkPlayer.TYPE_VIDEO);

            //创建渲染器
            //5000是最大加载事件
            MediaCodecVideoTrackRenderer videoRenderer = new MediaCodecVideoTrackRenderer(context,
                    sampleSource, MediaCodec.VIDEO_SCALING_MODE_SCALE_TO_FIT, 5000, mainHandler, player, 50);
            MediaCodecAudioTrackRenderer audioRenderer = new MediaCodecAudioTrackRenderer(sampleSource,
                    null, true, player.getMainHandler(), player, AudioCapabilities.getCapabilities(context));
//            MetadataTrackRenderer<Map<String, Object>> id3Renderer = new MetadataTrackRenderer<>(
//                    sampleSource, new Id3Parser(), player, mainHandler.getLooper());
//            Eia608TrackRenderer closedCaptionRenderer = new Eia608TrackRenderer(sampleSource, player,
//                    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);
        }
 

import com.google.android.exoplayer.chunk.VideoFormatSelectorUtil; //导入方法依赖的package包/类
@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, masterPlaylist.variants, null, 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, bandwidthMeter, userAgent);
  HlsChunkSource chunkSource = new HlsChunkSource(dataSource, url, manifest, bandwidthMeter,
      variantIndices, HlsChunkSource.ADAPTIVE_MODE_SPLICE, audioCapabilities);
  HlsSampleSource sampleSource = new HlsSampleSource(chunkSource, loadControl,
      BUFFER_SEGMENTS * BUFFER_SEGMENT_SIZE, mainHandler, player, DemoPlayer.TYPE_VIDEO);
  MediaCodecVideoTrackRenderer videoRenderer = new MediaCodecVideoTrackRenderer(sampleSource,
      MediaCodec.VIDEO_SCALING_MODE_SCALE_TO_FIT, 5000, mainHandler, player, 50);
  MediaCodecAudioTrackRenderer audioRenderer = new MediaCodecAudioTrackRenderer(sampleSource);
  MetadataTrackRenderer<Map<String, Object>> id3Renderer = new MetadataTrackRenderer<>(
      sampleSource, new Id3Parser(), player, mainHandler.getLooper());
  Eia608TrackRenderer closedCaptionRenderer = new Eia608TrackRenderer(sampleSource, player,
      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, null, renderers, bandwidthMeter);
}