Java LoadControl类代码示例

import com.google.android.exoplayer.LoadControl; //导入依赖的package包/类
public ChunkSampleSource(ChunkSource chunkSource, LoadControl loadControl,
    int bufferSizeContribution, Handler eventHandler, EventListener eventListener,
    int eventSourceId, int minLoadableRetryCount) {
  this.chunkSource = chunkSource;
  this.loadControl = loadControl;
  this.bufferSizeContribution = bufferSizeContribution;
  this.eventHandler = eventHandler;
  this.eventListener = eventListener;
  this.eventSourceId = eventSourceId;
  this.minLoadableRetryCount = minLoadableRetryCount;
  currentLoadableHolder = new ChunkOperationHolder();
  mediaChunks = new LinkedList<>();
  readOnlyMediaChunks = Collections.unmodifiableList(mediaChunks);
  sampleQueue = new DefaultTrackOutput(loadControl.getAllocator());
  state = STATE_IDLE;
  pendingResetPositionUs = NO_RESET_PENDING;
}
 

import com.google.android.exoplayer.LoadControl; //导入依赖的package包/类
/**
 * @param chunkSource A {@link ChunkSource} from which chunks to load are obtained.
 * @param loadControl Controls when the source is permitted to load data.
 * @param bufferSizeContribution The contribution of this source to the media buffer, in bytes.
 * @param eventHandler A handler to use when delivering events to {@code eventListener}. May be
 *     null if delivery of events is not required.
 * @param eventListener A listener of events. May be null if delivery of events is not required.
 * @param eventSourceId An identifier that gets passed to {@code eventListener} methods.
 * @param minLoadableRetryCount The minimum number of times that the source should retry a load
 *     before propagating an error.
 */
public ChunkSampleSource(ChunkSource chunkSource, LoadControl loadControl,
    int bufferSizeContribution, Handler eventHandler, EventListener eventListener,
    int eventSourceId, int minLoadableRetryCount) {
  this.chunkSource = chunkSource;
  this.loadControl = loadControl;
  this.bufferSizeContribution = bufferSizeContribution;
  this.eventHandler = eventHandler;
  this.eventListener = eventListener;
  this.eventSourceId = eventSourceId;
  this.minLoadableRetryCount = minLoadableRetryCount;
  currentLoadableHolder = new ChunkOperationHolder();
  mediaChunks = new LinkedList<>();
  readOnlyMediaChunks = Collections.unmodifiableList(mediaChunks);
  sampleQueue = new DefaultTrackOutput(loadControl.getAllocator());
  state = STATE_IDLE;
  pendingResetPositionUs = NO_RESET_PENDING;
}
 

import com.google.android.exoplayer.LoadControl; //导入依赖的package包/类
public ChunkSampleSource(ChunkSource chunkSource, LoadControl loadControl,
    int bufferSizeContribution, boolean frameAccurateSeeking, Handler eventHandler,
    EventListener eventListener, int eventSourceId, int minLoadableRetryCount) {
  this.chunkSource = chunkSource;
  this.loadControl = loadControl;
  this.bufferSizeContribution = bufferSizeContribution;
  this.frameAccurateSeeking = frameAccurateSeeking;
  this.eventHandler = eventHandler;
  this.eventListener = eventListener;
  this.eventSourceId = eventSourceId;
  this.minLoadableRetryCount = minLoadableRetryCount;
  currentLoadableHolder = new ChunkOperationHolder();
  mediaChunks = new LinkedList<MediaChunk>();
  readOnlyMediaChunks = Collections.unmodifiableList(mediaChunks);
  state = STATE_UNPREPARED;
}
 

import com.google.android.exoplayer.LoadControl; //导入依赖的package包/类
public HlsSampleSource(HlsChunkSource chunkSource, LoadControl loadControl,
    int bufferSizeContribution, Handler eventHandler, EventListener eventListener,
    int eventSourceId, int minLoadableRetryCount) {
  this.chunkSource = chunkSource;
  this.loadControl = loadControl;
  this.bufferSizeContribution = bufferSizeContribution;
  this.minLoadableRetryCount = minLoadableRetryCount;
  this.eventHandler = eventHandler;
  this.eventListener = eventListener;
  this.eventSourceId = eventSourceId;
  this.pendingResetPositionUs = NO_RESET_PENDING;
  extractors = new LinkedList<>();
}
 

import com.google.android.exoplayer.LoadControl; //导入依赖的package包/类
@Override
public TrackRenderer[] buildRenderers(HostActivity host, ExoPlayer player, Surface surface) {
  Handler handler = new Handler();
  LogcatLogger logger = new LogcatLogger(TAG, player);
  LoadControl loadControl = new DefaultLoadControl(new DefaultAllocator(BUFFER_SEGMENT_SIZE));
  String userAgent = TestUtil.getUserAgent(host);

  // Build the video renderer.
  DataSource videoDataSource = new DefaultUriDataSource(host, null, userAgent);
  videoTrackSelector = new TrackSelector(AdaptationSet.TYPE_VIDEO,
      canIncludeAdditionalVideoFormats, videoFormats);
  ChunkSource videoChunkSource = new DashChunkSource(mpd, videoTrackSelector, videoDataSource,
      new FormatEvaluator.RandomEvaluator(0));
  ChunkSampleSource videoSampleSource = new ChunkSampleSource(videoChunkSource, loadControl,
      VIDEO_BUFFER_SEGMENTS * BUFFER_SEGMENT_SIZE, handler, logger, VIDEO_EVENT_ID,
      MIN_LOADABLE_RETRY_COUNT);
  DebugMediaCodecVideoTrackRenderer videoRenderer = new DebugMediaCodecVideoTrackRenderer(host,
      videoSampleSource, MediaCodecSelector.DEFAULT, MediaCodec.VIDEO_SCALING_MODE_SCALE_TO_FIT,
      0, handler, logger, 50);
  videoCounters = videoRenderer.codecCounters;
  player.sendMessage(videoRenderer, DebugMediaCodecVideoTrackRenderer.MSG_SET_SURFACE, surface);

  // Build the audio renderer.
  DataSource audioDataSource = new DefaultUriDataSource(host, null, userAgent);
  TrackSelector audioTrackSelector = new TrackSelector(AdaptationSet.TYPE_AUDIO, false,
      audioFormats);
  ChunkSource audioChunkSource = new DashChunkSource(mpd, audioTrackSelector, audioDataSource,
      null);
  ChunkSampleSource audioSampleSource = new ChunkSampleSource(audioChunkSource, loadControl,
      AUDIO_BUFFER_SEGMENTS * BUFFER_SEGMENT_SIZE, handler, logger, AUDIO_EVENT_ID,
      MIN_LOADABLE_RETRY_COUNT);
  MediaCodecAudioTrackRenderer audioRenderer = new MediaCodecAudioTrackRenderer(
      audioSampleSource, MediaCodecSelector.DEFAULT, handler, logger);
  audioCounters = audioRenderer.codecCounters;

  TrackRenderer[] renderers = new TrackRenderer[RENDERER_COUNT];
  renderers[VIDEO_RENDERER_INDEX] = videoRenderer;
  renderers[AUDIO_RENDERER_INDEX] = audioRenderer;
  return renderers;
}
 

import com.google.android.exoplayer.LoadControl; //导入依赖的package包/类
public HlsSampleSource(HlsChunkSource chunkSource, LoadControl loadControl,
    int bufferSizeContribution, Handler eventHandler, EventListener eventListener,
    int eventSourceId, int minLoadableRetryCount) {
  this.chunkSource = chunkSource;
  this.loadControl = loadControl;
  this.bufferSizeContribution = bufferSizeContribution;
  this.minLoadableRetryCount = minLoadableRetryCount;
  this.eventHandler = eventHandler;
  this.eventListener = eventListener;
  this.eventSourceId = eventSourceId;
  this.pendingResetPositionUs = NO_RESET_PENDING;
  extractors = new LinkedList<>();
  chunkOperationHolder = new ChunkOperationHolder();
}
 

import com.google.android.exoplayer.LoadControl; //导入依赖的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();
  PtsTimestampAdjusterProvider timestampAdjusterProvider = new PtsTimestampAdjusterProvider();

  // Build the video/audio/metadata renderers.
  DataSource dataSource = createDataSource(context, userAgent, bandwidthMeter);
  HlsChunkSource chunkSource = new HlsChunkSource(true /* isMaster */, dataSource, url,
      manifest, DefaultHlsTrackSelector.newDefaultInstance(context), bandwidthMeter,
      timestampAdjusterProvider, HlsChunkSource.ADAPTIVE_MODE_SPLICE);
  HlsSampleSource sampleSource = new HlsSampleSource(chunkSource, loadControl,
      MAIN_BUFFER_SEGMENTS * BUFFER_SEGMENT_SIZE, mainHandler, player, DemoPlayer.TYPE_VIDEO);
  MediaCodecVideoTrackRenderer videoRenderer = new MediaCodecVideoTrackRenderer(context,
      sampleSource, MediaCodecSelector.DEFAULT, MediaCodec.VIDEO_SCALING_MODE_SCALE_TO_FIT,
      5000, mainHandler, player, 50);
  final MediaCodecAudioTrackRenderer audioRenderer = new MediaCodecAudioTrackRenderer(
      sampleSource, MediaCodecSelector.DEFAULT, null, true, player.getMainHandler(), player,
      AudioCapabilities.getCapabilities(context), AudioManager.STREAM_MUSIC);
  final MetadataTrackRenderer<List<Id3Frame>> id3Renderer = new MetadataTrackRenderer<>(
      sampleSource, new Id3Parser(), 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;
  player.onRenderers(renderers, bandwidthMeter);
}
 

import com.google.android.exoplayer.LoadControl; //导入依赖的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.LoadControl; //导入依赖的package包/类
public ChunkSampleSource(ChunkSource chunkSource, LoadControl loadControl,
    int bufferSizeContribution, boolean frameAccurateSeeking, Handler eventHandler,
    EventListener eventListener, int eventSourceId) {
  this.chunkSource = chunkSource;
  this.loadControl = loadControl;
  this.bufferSizeContribution = bufferSizeContribution;
  this.frameAccurateSeeking = frameAccurateSeeking;
  this.eventHandler = eventHandler;
  this.eventListener = eventListener;
  this.eventSourceId = eventSourceId;
  currentLoadableHolder = new ChunkOperationHolder();
  mediaChunks = new LinkedList<MediaChunk>();
  readOnlyMediaChunks = Collections.unmodifiableList(mediaChunks);
  state = STATE_UNPREPARED;
}
 

import com.google.android.exoplayer.LoadControl; //导入依赖的package包/类
private void buildRenderers() {
  Period period = manifest.getPeriod(0);
  Handler mainHandler = player.getMainHandler();
  LoadControl loadControl = new DefaultLoadControl(new DefaultAllocator(BUFFER_SEGMENT_SIZE));
  DefaultBandwidthMeter bandwidthMeter = new DefaultBandwidthMeter(mainHandler, player);

  boolean hasContentProtection = false;
  for (int i = 0; i < period.adaptationSets.size(); i++) {
    AdaptationSet adaptationSet = period.adaptationSets.get(i);
    if (adaptationSet.type != AdaptationSet.TYPE_UNKNOWN) {
      hasContentProtection |= adaptationSet.hasContentProtection();
    }
  }

  // Check drm support if necessary.
  boolean filterHdContent = false;
  StreamingDrmSessionManager drmSessionManager = null;
  if (hasContentProtection) {
    if (Util.SDK_INT < 18) {
      player.onRenderersError(
          new UnsupportedDrmException(UnsupportedDrmException.REASON_UNSUPPORTED_SCHEME));
      return;
    }
    try {
      drmSessionManager = StreamingDrmSessionManager.newWidevineInstance(
          player.getPlaybackLooper(), drmCallback, null, player.getMainHandler(), player);
      filterHdContent = getWidevineSecurityLevel(drmSessionManager) != SECURITY_LEVEL_1;
    } catch (UnsupportedDrmException e) {
      player.onRenderersError(e);
      return;
    }
  }

  // Build the video renderer.
  DataSource videoDataSource = new DefaultUriDataSource(context, bandwidthMeter, userAgent);
  ChunkSource videoChunkSource = new DashChunkSource(manifestFetcher,
      DefaultDashTrackSelector.newVideoInstance(context, true, filterHdContent),
      videoDataSource, new AdaptiveEvaluator(bandwidthMeter), LIVE_EDGE_LATENCY_MS,
      elapsedRealtimeOffset, mainHandler, player, DemoPlayer.TYPE_VIDEO);
  ChunkSampleSource videoSampleSource = new ChunkSampleSource(videoChunkSource, loadControl,
      VIDEO_BUFFER_SEGMENTS * BUFFER_SEGMENT_SIZE, mainHandler, player,
      DemoPlayer.TYPE_VIDEO);
  TrackRenderer videoRenderer = new MediaCodecVideoTrackRenderer(context, videoSampleSource,
      MediaCodecSelector.DEFAULT, MediaCodec.VIDEO_SCALING_MODE_SCALE_TO_FIT, 5000,
      drmSessionManager, true, mainHandler, player, 50);

  // Build the audio renderer.
  DataSource audioDataSource = new DefaultUriDataSource(context, bandwidthMeter, userAgent);
  ChunkSource audioChunkSource = new DashChunkSource(manifestFetcher,
      DefaultDashTrackSelector.newAudioInstance(), audioDataSource, null, LIVE_EDGE_LATENCY_MS,
      elapsedRealtimeOffset, mainHandler, player, DemoPlayer.TYPE_AUDIO);
  ChunkSampleSource audioSampleSource = new ChunkSampleSource(audioChunkSource, loadControl,
      AUDIO_BUFFER_SEGMENTS * BUFFER_SEGMENT_SIZE, mainHandler, player,
      DemoPlayer.TYPE_AUDIO);
  TrackRenderer audioRenderer = new MediaCodecAudioTrackRenderer(audioSampleSource,
      MediaCodecSelector.DEFAULT, drmSessionManager, true, mainHandler, player,
      AudioCapabilities.getCapabilities(context), AudioManager.STREAM_MUSIC);

  // Build the text renderer.
  DataSource textDataSource = new DefaultUriDataSource(context, bandwidthMeter, userAgent);
  ChunkSource textChunkSource = new DashChunkSource(manifestFetcher,
      DefaultDashTrackSelector.newTextInstance(), textDataSource, null, LIVE_EDGE_LATENCY_MS,
      elapsedRealtimeOffset, mainHandler, player, DemoPlayer.TYPE_TEXT);
  ChunkSampleSource textSampleSource = new ChunkSampleSource(textChunkSource, loadControl,
      TEXT_BUFFER_SEGMENTS * BUFFER_SEGMENT_SIZE, mainHandler, player,
      DemoPlayer.TYPE_TEXT);
  TrackRenderer textRenderer = new TextTrackRenderer(textSampleSource, player,
      mainHandler.getLooper());

  // Invoke the callback.
  TrackRenderer[] renderers = new TrackRenderer[DemoPlayer.RENDERER_COUNT];
  renderers[DemoPlayer.TYPE_VIDEO] = videoRenderer;
  renderers[DemoPlayer.TYPE_AUDIO] = audioRenderer;
  renderers[DemoPlayer.TYPE_TEXT] = textRenderer;
  player.onRenderers(renderers, bandwidthMeter);
}
 

import com.google.android.exoplayer.LoadControl; //导入依赖的package包/类
private void buildRenderers() {
  Period period = manifest.getPeriod(0);
  Handler mainHandler = player.getMainHandler();
  LoadControl loadControl = new DefaultLoadControl(new DefaultAllocator(BUFFER_SEGMENT_SIZE));
  DefaultBandwidthMeter bandwidthMeter = new DefaultBandwidthMeter(mainHandler, player);

  boolean hasContentProtection = false;
  for (int i = 0; i < period.adaptationSets.size(); i++) {
    AdaptationSet adaptationSet = period.adaptationSets.get(i);
    if (adaptationSet.type != AdaptationSet.TYPE_UNKNOWN) {
      hasContentProtection |= adaptationSet.hasContentProtection();
    }
  }

  // Check drm support if necessary.
  boolean filterHdContent = false;
  StreamingDrmSessionManager<FrameworkMediaCrypto> drmSessionManager = null;
  if (hasContentProtection) {
    if (Util.SDK_INT < 18) {
      player.onRenderersError(
          new UnsupportedDrmException(UnsupportedDrmException.REASON_UNSUPPORTED_SCHEME));
      return;
    }
    try {
      drmSessionManager = StreamingDrmSessionManager.newWidevineInstance(
          player.getPlaybackLooper(), drmCallback, null, player.getMainHandler(), player);
      filterHdContent = getWidevineSecurityLevel(drmSessionManager) != SECURITY_LEVEL_1;
    } catch (UnsupportedDrmException e) {
      player.onRenderersError(e);
      return;
    }
  }

  // Build the video renderer.
  DataSource videoDataSource = new DefaultUriDataSource(context, bandwidthMeter, userAgent);
  ChunkSource videoChunkSource = new DashChunkSource(manifestFetcher,
      DefaultDashTrackSelector.newVideoInstance(context, true, filterHdContent),
      videoDataSource, new AdaptiveEvaluator(bandwidthMeter), LIVE_EDGE_LATENCY_MS,
      elapsedRealtimeOffset, mainHandler, player, DemoPlayer.TYPE_VIDEO);
  ChunkSampleSource videoSampleSource = new ChunkSampleSource(videoChunkSource, loadControl,
      VIDEO_BUFFER_SEGMENTS * BUFFER_SEGMENT_SIZE, mainHandler, player,
      DemoPlayer.TYPE_VIDEO);
  TrackRenderer videoRenderer = new MediaCodecVideoTrackRenderer(context, videoSampleSource,
      MediaCodecSelector.DEFAULT, MediaCodec.VIDEO_SCALING_MODE_SCALE_TO_FIT, 5000,
      drmSessionManager, true, mainHandler, player, 50);

  // Build the audio renderer.
  DataSource audioDataSource = new DefaultUriDataSource(context, bandwidthMeter, userAgent);
  ChunkSource audioChunkSource = new DashChunkSource(manifestFetcher,
      DefaultDashTrackSelector.newAudioInstance(), audioDataSource, null, LIVE_EDGE_LATENCY_MS,
      elapsedRealtimeOffset, mainHandler, player, DemoPlayer.TYPE_AUDIO);
  ChunkSampleSource audioSampleSource = new ChunkSampleSource(audioChunkSource, loadControl,
      AUDIO_BUFFER_SEGMENTS * BUFFER_SEGMENT_SIZE, mainHandler, player,
      DemoPlayer.TYPE_AUDIO);
  TrackRenderer audioRenderer = new MediaCodecAudioTrackRenderer(audioSampleSource,
      MediaCodecSelector.DEFAULT, drmSessionManager, true, mainHandler, player,
      AudioCapabilities.getCapabilities(context), AudioManager.STREAM_MUSIC);

  // Build the text renderer.
  DataSource textDataSource = new DefaultUriDataSource(context, bandwidthMeter, userAgent);
  ChunkSource textChunkSource = new DashChunkSource(manifestFetcher,
      DefaultDashTrackSelector.newTextInstance(), textDataSource, null, LIVE_EDGE_LATENCY_MS,
      elapsedRealtimeOffset, mainHandler, player, DemoPlayer.TYPE_TEXT);
  ChunkSampleSource textSampleSource = new ChunkSampleSource(textChunkSource, loadControl,
      TEXT_BUFFER_SEGMENTS * BUFFER_SEGMENT_SIZE, mainHandler, player,
      DemoPlayer.TYPE_TEXT);
  TrackRenderer textRenderer = new TextTrackRenderer(textSampleSource, player,
      mainHandler.getLooper());

  // Invoke the callback.
  TrackRenderer[] renderers = new TrackRenderer[DemoPlayer.RENDERER_COUNT];
  renderers[DemoPlayer.TYPE_VIDEO] = videoRenderer;
  renderers[DemoPlayer.TYPE_AUDIO] = audioRenderer;
  renderers[DemoPlayer.TYPE_TEXT] = textRenderer;
  player.onRenderers(renderers, bandwidthMeter);
}
 

import com.google.android.exoplayer.LoadControl; //导入依赖的package包/类
@Override
public void onSingleManifest(SmoothStreamingManifest manifest) {
  if (canceled) {
    return;
  }

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

  // Check drm support if necessary.
  DrmSessionManager<FrameworkMediaCrypto> drmSessionManager = null;
  if (manifest.protectionElement != null) {
    if (Util.SDK_INT < 18) {
      player.onRenderersError(
          new UnsupportedDrmException(UnsupportedDrmException.REASON_UNSUPPORTED_SCHEME));
      return;
    }
    try {
      drmSessionManager = StreamingDrmSessionManager.newFrameworkInstance(
          manifest.protectionElement.uuid, player.getPlaybackLooper(), drmCallback, null,
          player.getMainHandler(), player);
    } catch (UnsupportedDrmException e) {
      player.onRenderersError(e);
      return;
    }
  }

  // Build the video renderer.
  DataSource videoDataSource = new DefaultUriDataSource(context, bandwidthMeter, userAgent);
  ChunkSource videoChunkSource = new SmoothStreamingChunkSource(manifestFetcher,
      DefaultSmoothStreamingTrackSelector.newVideoInstance(context, true, false),
      videoDataSource, new AdaptiveEvaluator(bandwidthMeter), LIVE_EDGE_LATENCY_MS);
  ChunkSampleSource videoSampleSource = new ChunkSampleSource(videoChunkSource, loadControl,
      VIDEO_BUFFER_SEGMENTS * BUFFER_SEGMENT_SIZE, mainHandler, player,
      DemoPlayer.TYPE_VIDEO);
  TrackRenderer videoRenderer = new MediaCodecVideoTrackRenderer(context, videoSampleSource,
      MediaCodecSelector.DEFAULT, MediaCodec.VIDEO_SCALING_MODE_SCALE_TO_FIT, 5000,
      drmSessionManager, true, mainHandler, player, 50);

  // Build the audio renderer.
  DataSource audioDataSource = new DefaultUriDataSource(context, bandwidthMeter, userAgent);
  ChunkSource audioChunkSource = new SmoothStreamingChunkSource(manifestFetcher,
      DefaultSmoothStreamingTrackSelector.newAudioInstance(),
      audioDataSource, null, LIVE_EDGE_LATENCY_MS);
  ChunkSampleSource audioSampleSource = new ChunkSampleSource(audioChunkSource, loadControl,
      AUDIO_BUFFER_SEGMENTS * BUFFER_SEGMENT_SIZE, mainHandler, player,
      DemoPlayer.TYPE_AUDIO);
  TrackRenderer audioRenderer = new MediaCodecAudioTrackRenderer(audioSampleSource,
      MediaCodecSelector.DEFAULT, drmSessionManager, true, mainHandler, player,
      AudioCapabilities.getCapabilities(context), AudioManager.STREAM_MUSIC);

  // Build the text renderer.
  DataSource textDataSource = new DefaultUriDataSource(context, bandwidthMeter, userAgent);
  ChunkSource textChunkSource = new SmoothStreamingChunkSource(manifestFetcher,
      DefaultSmoothStreamingTrackSelector.newTextInstance(),
      textDataSource, null, LIVE_EDGE_LATENCY_MS);
  ChunkSampleSource textSampleSource = new ChunkSampleSource(textChunkSource, loadControl,
      TEXT_BUFFER_SEGMENTS * BUFFER_SEGMENT_SIZE, mainHandler, player,
      DemoPlayer.TYPE_TEXT);
  TrackRenderer textRenderer = new TextTrackRenderer(textSampleSource, player,
      mainHandler.getLooper());

  // Invoke the callback.
  TrackRenderer[] renderers = new TrackRenderer[DemoPlayer.RENDERER_COUNT];
  renderers[DemoPlayer.TYPE_VIDEO] = videoRenderer;
  renderers[DemoPlayer.TYPE_AUDIO] = audioRenderer;
  renderers[DemoPlayer.TYPE_TEXT] = textRenderer;
  player.onRenderers(renderers, bandwidthMeter);
}
 

import com.google.android.exoplayer.LoadControl; //导入依赖的package包/类
private void buildRenderers() {
  Period period = manifest.getPeriod(0);
  Handler mainHandler = player.getMainHandler();
  LoadControl loadControl = new DefaultLoadControl(new DefaultAllocator(BUFFER_SEGMENT_SIZE));
  DefaultBandwidthMeter bandwidthMeter = new DefaultBandwidthMeter(mainHandler, player);

  boolean hasContentProtection = false;
  for (int i = 0; i < period.adaptationSets.size(); i++) {
    AdaptationSet adaptationSet = period.adaptationSets.get(i);
    if (adaptationSet.type != AdaptationSet.TYPE_UNKNOWN) {
      hasContentProtection |= adaptationSet.hasContentProtection();
    }
  }

  // Check drm support if necessary.
  boolean filterHdContent = false;
  StreamingDrmSessionManager drmSessionManager = null;
  if (hasContentProtection) {
    if (Util.SDK_INT < 18) {
      player.onRenderersError(
          new UnsupportedDrmException(UnsupportedDrmException.REASON_UNSUPPORTED_SCHEME));
      return;
    }
    try {
      drmSessionManager = StreamingDrmSessionManager.newWidevineInstance(
          player.getPlaybackLooper(), drmCallback, null, player.getMainHandler(), player);
      filterHdContent = getWidevineSecurityLevel(drmSessionManager) != SECURITY_LEVEL_1;
    } catch (UnsupportedDrmException e) {
      player.onRenderersError(e);
      return;
    }
  }

  // Build the video renderer.
  DataSource videoDataSource = new DefaultUriDataSource(context, bandwidthMeter, userAgent);
  ChunkSource videoChunkSource = new DashChunkSource(manifestFetcher,
      DefaultDashTrackSelector.newVideoInstance(context, true, filterHdContent),
      videoDataSource, new AdaptiveEvaluator(bandwidthMeter), LIVE_EDGE_LATENCY_MS,
      elapsedRealtimeOffset, mainHandler, player);
  ChunkSampleSource videoSampleSource = new ChunkSampleSource(videoChunkSource, loadControl,
      VIDEO_BUFFER_SEGMENTS * BUFFER_SEGMENT_SIZE, mainHandler, player,
      DemoPlayer.TYPE_VIDEO);
  TrackRenderer videoRenderer = new MediaCodecVideoTrackRenderer(context, videoSampleSource,
      MediaCodec.VIDEO_SCALING_MODE_SCALE_TO_FIT, 5000, drmSessionManager, true,
      mainHandler, player, 50);

  // Build the audio renderer.
  DataSource audioDataSource = new DefaultUriDataSource(context, bandwidthMeter, userAgent);
  ChunkSource audioChunkSource = new DashChunkSource(manifestFetcher,
      DefaultDashTrackSelector.newAudioInstance(), audioDataSource, null, LIVE_EDGE_LATENCY_MS,
      elapsedRealtimeOffset, mainHandler, player);
  ChunkSampleSource audioSampleSource = new ChunkSampleSource(audioChunkSource, loadControl,
      AUDIO_BUFFER_SEGMENTS * BUFFER_SEGMENT_SIZE, mainHandler, player,
      DemoPlayer.TYPE_AUDIO);
  TrackRenderer audioRenderer = new MediaCodecAudioTrackRenderer(audioSampleSource,
      drmSessionManager, true, mainHandler, player, AudioCapabilities.getCapabilities(context));

  // Build the text renderer.
  DataSource textDataSource = new DefaultUriDataSource(context, bandwidthMeter, userAgent);
  ChunkSource textChunkSource = new DashChunkSource(manifestFetcher,
      DefaultDashTrackSelector.newTextInstance(), textDataSource, null, LIVE_EDGE_LATENCY_MS,
      elapsedRealtimeOffset, mainHandler, player);
  ChunkSampleSource textSampleSource = new ChunkSampleSource(textChunkSource, loadControl,
      TEXT_BUFFER_SEGMENTS * BUFFER_SEGMENT_SIZE, mainHandler, player,
      DemoPlayer.TYPE_TEXT);
  TrackRenderer textRenderer = new TextTrackRenderer(textSampleSource, player,
      mainHandler.getLooper());

  // Invoke the callback.
  TrackRenderer[] renderers = new TrackRenderer[DemoPlayer.RENDERER_COUNT];
  renderers[DemoPlayer.TYPE_VIDEO] = videoRenderer;
  renderers[DemoPlayer.TYPE_AUDIO] = audioRenderer;
  renderers[DemoPlayer.TYPE_TEXT] = textRenderer;
  player.onRenderers(renderers, bandwidthMeter);
}
 

import com.google.android.exoplayer.LoadControl; //导入依赖的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.LoadControl; //导入依赖的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);
}