content: /*
   * Copyright (C) 2018 The Android Open Source Project
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package com.google.android.exoplayer2.source.hls;
  
  import static org.mockito.ArgumentMatchers.anyInt;
  import static org.mockito.Mockito.mock;
  import static org.mockito.Mockito.when;
  
  import android.net.Uri;
  import androidx.test.ext.junit.runners.AndroidJUnit4;
  import com.google.android.exoplayer2.Format;
  import com.google.android.exoplayer2.analytics.PlayerId;
  import com.google.android.exoplayer2.drm.DrmSessionEventListener;
  import com.google.android.exoplayer2.drm.DrmSessionManager;
  import com.google.android.exoplayer2.source.CompositeSequenceableLoaderFactory;
  import com.google.android.exoplayer2.source.MediaSource.MediaPeriodId;
  import com.google.android.exoplayer2.source.MediaSourceEventListener;
  import com.google.android.exoplayer2.source.hls.playlist.HlsMultivariantPlaylist;
  import com.google.android.exoplayer2.source.hls.playlist.HlsMultivariantPlaylist.Rendition;
  import com.google.android.exoplayer2.source.hls.playlist.HlsMultivariantPlaylist.Variant;
  import com.google.android.exoplayer2.source.hls.playlist.HlsPlaylist;
  import com.google.android.exoplayer2.source.hls.playlist.HlsPlaylistTracker;
  import com.google.android.exoplayer2.testutil.MediaPeriodAsserts;
  import com.google.android.exoplayer2.testutil.MediaPeriodAsserts.FilterableManifestMediaPeriodFactory;
  import com.google.android.exoplayer2.upstream.Allocator;
  import com.google.android.exoplayer2.upstream.DataSource;
  import com.google.android.exoplayer2.upstream.LoadErrorHandlingPolicy;
  import com.google.android.exoplayer2.upstream.TransferListener;
  import com.google.android.exoplayer2.util.MimeTypes;
  import java.util.Arrays;
  import java.util.Collections;
  import java.util.List;
  import org.junit.Test;
  import org.junit.runner.RunWith;
  
  /** Unit test for {@link HlsMediaPeriod}. */
  @RunWith(AndroidJUnit4.class)
  public final class HlsMediaPeriodTest {
  
    @Test
    public void getSteamKeys_isCompatibleWithHlsMultivariantPlaylistFilter() {
      HlsMultivariantPlaylist testMultivariantPlaylist =
          createMultivariantPlaylist(
              /* variants= */ Arrays.asList(
                  createAudioOnlyVariant(/* peakBitrate= */ 10000),
                  createMuxedVideoAudioVariant(/* peakBitrate= */ 200000),
                  createAudioOnlyVariant(/* peakBitrate= */ 300000),
                  createMuxedVideoAudioVariant(/* peakBitrate= */ 400000),
                  createMuxedVideoAudioVariant(/* peakBitrate= */ 600000)),
              /* audios= */ Arrays.asList(
                  createAudioRendition(/* language= */ "spa"),
                  createAudioRendition(/* language= */ "ger"),
                  createAudioRendition(/* language= */ "tur")),
              /* subtitles= */ Arrays.asList(
                  createSubtitleRendition(/* language= */ "spa"),
                  createSubtitleRendition(/* language= */ "ger"),
                  createSubtitleRendition(/* language= */ "tur")),
              /* muxedAudioFormat= */ createAudioFormat("eng"),
              /* muxedCaptionFormats= */ Arrays.asList(
                  createSubtitleFormat("eng"), createSubtitleFormat("gsw")));
      FilterableManifestMediaPeriodFactory<HlsPlaylist> mediaPeriodFactory =
          (playlist, periodIndex) -> {
            HlsDataSourceFactory mockDataSourceFactory = mock(HlsDataSourceFactory.class);
            when(mockDataSourceFactory.createDataSource(anyInt())).thenReturn(mock(DataSource.class));
            HlsPlaylistTracker mockPlaylistTracker = mock(HlsPlaylistTracker.class);
            when(mockPlaylistTracker.getMultivariantPlaylist())
                .thenReturn((HlsMultivariantPlaylist) playlist);
            MediaPeriodId mediaPeriodId = new MediaPeriodId(/* periodUid= */ new Object());
            return new HlsMediaPeriod(
                mock(HlsExtractorFactory.class),
                mockPlaylistTracker,
                mockDataSourceFactory,
                mock(TransferListener.class),
                mock(DrmSessionManager.class),
                new DrmSessionEventListener.EventDispatcher()
                    .withParameters(/* windowIndex= */ 0, mediaPeriodId),
                mock(LoadErrorHandlingPolicy.class),
                new MediaSourceEventListener.EventDispatcher()
                    .withParameters(/* windowIndex= */ 0, mediaPeriodId, /* mediaTimeOffsetMs= */ 0),
                mock(Allocator.class),
                mock(CompositeSequenceableLoaderFactory.class),
                /* allowChunklessPreparation= */ true,
                HlsMediaSource.METADATA_TYPE_ID3,
                /* useSessionKeys= */ false,
                PlayerId.UNSET);
          };
  
      MediaPeriodAsserts.assertGetStreamKeysAndManifestFilterIntegration(
          mediaPeriodFactory, testMultivariantPlaylist);
    }
  
    private static HlsMultivariantPlaylist createMultivariantPlaylist(
        List<Variant> variants,
        List<Rendition> audios,
        List<Rendition> subtitles,
        Format muxedAudioFormat,
        List<Format> muxedCaptionFormats) {
      return new HlsMultivariantPlaylist(
          "http://baseUri",
          /* tags= */ Collections.emptyList(),
          variants,
          /* videos= */ Collections.emptyList(),
          audios,
          subtitles,
          /* closedCaptions= */ Collections.emptyList(),
          muxedAudioFormat,
          muxedCaptionFormats,
          /* hasIndependentSegments= */ true,
          /* variableDefinitions= */ Collections.emptyMap(),
          /* sessionKeyDrmInitData= */ Collections.emptyList());
    }
  
    private static Variant createMuxedVideoAudioVariant(int peakBitrate) {
      return createVariant(
          new Format.Builder()
              .setContainerMimeType(MimeTypes.APPLICATION_M3U8)
              .setCodecs("avc1.100.41,mp4a.40.2")
              .setPeakBitrate(peakBitrate)
              .build());
    }
  
    private static Variant createAudioOnlyVariant(int peakBitrate) {
      return createVariant(
          new Format.Builder()
              .setContainerMimeType(MimeTypes.APPLICATION_M3U8)
              .setCodecs("mp4a.40.2")
              .setPeakBitrate(peakBitrate)
              .build());
    }
  
    private static Rendition createAudioRendition(String language) {
      return createRendition(createAudioFormat(language), "", "");
    }
  
    private static Rendition createSubtitleRendition(String language) {
      return createRendition(createSubtitleFormat(language), "", "");
    }
  
    private static Variant createVariant(Format format) {
      return new Variant(Uri.parse("https://variant"), format, null, null, null, null);
    }
  
    private static Rendition createRendition(Format format, String groupId, String name) {
      return new Rendition(Uri.parse("https://rendition"), format, groupId, name);
    }
  
    private static Format createAudioFormat(String language) {
      return new Format.Builder()
          .setContainerMimeType(MimeTypes.APPLICATION_M3U8)
          .setSampleMimeType(MimeTypes.getMediaMimeType("mp4a.40.2"))
          .setCodecs("mp4a.40.2")
          .setLanguage(language)
          .build();
    }
  
    private static Format createSubtitleFormat(String language) {
      return new Format.Builder()
          .setContainerMimeType(MimeTypes.APPLICATION_M3U8)
          .setSampleMimeType(MimeTypes.TEXT_VTT)
          .setLanguage(language)
          .build();
    }
  }
  