content: /*
   * Copyright (C) 2021 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.util;
  
  import static com.google.common.truth.Truth.assertThat;
  
  import android.media.MediaFormat;
  import androidx.test.ext.junit.runners.AndroidJUnit4;
  import com.google.android.exoplayer2.C;
  import com.google.android.exoplayer2.Format;
  import com.google.android.exoplayer2.video.ColorInfo;
  import com.google.common.collect.ImmutableList;
  import org.junit.Test;
  import org.junit.runner.RunWith;
  
  /** Unit tests for {@link MediaFormatUtil}. */
  @RunWith(AndroidJUnit4.class)
  public class MediaFormatUtilTest {
  
    @Test
    public void createMediaFormatFromFormat_withEmptyFormat_generatesExpectedEntries() {
      MediaFormat mediaFormat =
          MediaFormatUtil.createMediaFormatFromFormat(new Format.Builder().build());
      // Assert that no invalid keys are accidentally being populated.
      assertThat(mediaFormat.getKeys())
          .containsExactly(
              MediaFormatUtil.KEY_PIXEL_WIDTH_HEIGHT_RATIO_FLOAT,
              MediaFormat.KEY_ENCODER_DELAY,
              MediaFormat.KEY_ENCODER_PADDING,
              MediaFormat.KEY_PIXEL_ASPECT_RATIO_WIDTH,
              MediaFormat.KEY_PIXEL_ASPECT_RATIO_HEIGHT,
              MediaFormat.KEY_IS_DEFAULT,
              MediaFormat.KEY_IS_FORCED_SUBTITLE,
              MediaFormat.KEY_IS_AUTOSELECT,
              MediaFormat.KEY_ROTATION);
      assertThat(mediaFormat.getFloat(MediaFormatUtil.KEY_PIXEL_WIDTH_HEIGHT_RATIO_FLOAT))
          .isEqualTo(1.f);
      assertThat(mediaFormat.getInteger(MediaFormat.KEY_ENCODER_DELAY)).isEqualTo(0);
      assertThat(mediaFormat.getInteger(MediaFormat.KEY_ENCODER_PADDING)).isEqualTo(0);
      assertThat(mediaFormat.getInteger(MediaFormat.KEY_PIXEL_ASPECT_RATIO_WIDTH)).isEqualTo(1);
      assertThat(mediaFormat.getInteger(MediaFormat.KEY_PIXEL_ASPECT_RATIO_HEIGHT)).isEqualTo(1);
      assertThat(mediaFormat.getInteger(MediaFormat.KEY_IS_DEFAULT)).isEqualTo(0);
      assertThat(mediaFormat.getInteger(MediaFormat.KEY_IS_FORCED_SUBTITLE)).isEqualTo(0);
      assertThat(mediaFormat.getInteger(MediaFormat.KEY_IS_AUTOSELECT)).isEqualTo(0);
      assertThat(mediaFormat.getInteger(MediaFormat.KEY_ROTATION)).isEqualTo(0);
    }
  
    @Test
    public void createMediaFormatFromFormat_withPopulatedFormat_generatesExpectedEntries() {
      Format format =
          new Format.Builder()
              .setAverageBitrate(1)
              .setChannelCount(2)
              .setColorInfo(
                  new ColorInfo(
                      /* colorSpace= */ C.COLOR_SPACE_BT601,
                      /* colorRange= */ C.COLOR_RANGE_FULL,
                      /* colorTransfer= */ C.COLOR_TRANSFER_HLG,
                      new byte[] {3}))
              .setSampleMimeType(MimeTypes.VIDEO_H264)
              .setCodecs("avc.123")
              .setFrameRate(4)
              .setWidth(5)
              .setHeight(6)
              .setInitializationData(ImmutableList.of(new byte[] {7}, new byte[] {8}))
              .setPcmEncoding(C.ENCODING_PCM_8BIT)
              .setLanguage("en")
              .setMaxInputSize(9)
              .setRotationDegrees(10)
              .setSampleRate(11)
              .setAccessibilityChannel(12)
              .setSelectionFlags(
                  C.SELECTION_FLAG_AUTOSELECT | C.SELECTION_FLAG_DEFAULT | C.SELECTION_FLAG_FORCED)
              .setEncoderDelay(13)
              .setEncoderPadding(14)
              .setPixelWidthHeightRatio(.5f)
              .build();
      MediaFormat mediaFormat = MediaFormatUtil.createMediaFormatFromFormat(format);
  
      assertThat(mediaFormat.getInteger(MediaFormat.KEY_BIT_RATE)).isEqualTo(format.bitrate);
      assertThat(mediaFormat.getInteger(MediaFormat.KEY_CHANNEL_COUNT))
          .isEqualTo(format.channelCount);
  
      ColorInfo colorInfo = Assertions.checkNotNull(format.colorInfo);
      assertThat(mediaFormat.getInteger(MediaFormat.KEY_COLOR_TRANSFER))
          .isEqualTo(colorInfo.colorTransfer);
      assertThat(mediaFormat.getInteger(MediaFormat.KEY_COLOR_RANGE)).isEqualTo(colorInfo.colorRange);
      assertThat(mediaFormat.getInteger(MediaFormat.KEY_COLOR_STANDARD))
          .isEqualTo(colorInfo.colorSpace);
      assertThat(mediaFormat.getByteBuffer(MediaFormat.KEY_HDR_STATIC_INFO).array())
          .isEqualTo(colorInfo.hdrStaticInfo);
  
      assertThat(mediaFormat.getString(MediaFormat.KEY_MIME)).isEqualTo(format.sampleMimeType);
      assertThat(mediaFormat.getString(MediaFormat.KEY_CODECS_STRING)).isEqualTo(format.codecs);
      assertThat(mediaFormat.getFloat(MediaFormat.KEY_FRAME_RATE)).isEqualTo(format.frameRate);
  
      assertThat(mediaFormat.getInteger(MediaFormat.KEY_WIDTH)).isEqualTo(format.width);
      assertThat(mediaFormat.getInteger(MediaFormat.KEY_HEIGHT)).isEqualTo(format.height);
  
      assertThat(mediaFormat.getByteBuffer("csd-0").array())
          .isEqualTo(format.initializationData.get(0));
      assertThat(mediaFormat.getByteBuffer("csd-1").array())
          .isEqualTo(format.initializationData.get(1));
  
      assertThat(mediaFormat.getInteger(MediaFormat.KEY_PCM_ENCODING)).isEqualTo(format.pcmEncoding);
      assertThat(mediaFormat.getInteger(MediaFormatUtil.KEY_PCM_ENCODING_EXTENDED))
          .isEqualTo(format.pcmEncoding);
  
      assertThat(mediaFormat.getString(MediaFormat.KEY_LANGUAGE)).isEqualTo(format.language);
      assertThat(mediaFormat.getInteger(MediaFormat.KEY_MAX_INPUT_SIZE))
          .isEqualTo(format.maxInputSize);
      assertThat(mediaFormat.getInteger(MediaFormat.KEY_ROTATION)).isEqualTo(format.rotationDegrees);
      assertThat(mediaFormat.getInteger(MediaFormat.KEY_SAMPLE_RATE)).isEqualTo(format.sampleRate);
      assertThat(mediaFormat.getInteger(MediaFormat.KEY_CAPTION_SERVICE_NUMBER))
          .isEqualTo(format.accessibilityChannel);
  
      assertThat(mediaFormat.getInteger(MediaFormat.KEY_IS_AUTOSELECT)).isNotEqualTo(0);
      assertThat(mediaFormat.getInteger(MediaFormat.KEY_IS_DEFAULT)).isNotEqualTo(0);
      assertThat(mediaFormat.getInteger(MediaFormat.KEY_IS_FORCED_SUBTITLE)).isNotEqualTo(0);
  
      assertThat(mediaFormat.getInteger(MediaFormat.KEY_ENCODER_DELAY))
          .isEqualTo(format.encoderDelay);
      assertThat(mediaFormat.getInteger(MediaFormat.KEY_ENCODER_PADDING))
          .isEqualTo(format.encoderPadding);
  
      float calculatedPixelAspectRatio =
          (float) mediaFormat.getInteger(MediaFormat.KEY_PIXEL_ASPECT_RATIO_WIDTH)
              / mediaFormat.getInteger(MediaFormat.KEY_PIXEL_ASPECT_RATIO_HEIGHT);
      assertThat(calculatedPixelAspectRatio).isWithin(.0001f).of(format.pixelWidthHeightRatio);
      assertThat(mediaFormat.getFloat(MediaFormatUtil.KEY_PIXEL_WIDTH_HEIGHT_RATIO_FLOAT))
          .isEqualTo(format.pixelWidthHeightRatio);
    }
  
    @Test
    public void createMediaFormatFromFormat_withPcmEncoding_setsCustomPcmEncodingEntry() {
      Format format = new Format.Builder().setPcmEncoding(C.ENCODING_PCM_16BIT_BIG_ENDIAN).build();
      MediaFormat mediaFormat = MediaFormatUtil.createMediaFormatFromFormat(format);
      assertThat(mediaFormat.getInteger(MediaFormatUtil.KEY_PCM_ENCODING_EXTENDED))
          .isEqualTo(C.ENCODING_PCM_16BIT_BIG_ENDIAN);
      assertThat(mediaFormat.containsKey(MediaFormat.KEY_PCM_ENCODING)).isFalse();
    }
  }
  