Examples with AdaptiveTrackSelection androidx.media3.exoplayer.trackselection.AdaptiveTrackSelection used on opensource projects

Example 11 with AdaptiveTrackSelection

use of androidx.media3.exoplayer.trackselection.AdaptiveTrackSelection in project media by androidx.

the class AdaptiveTrackSelectionTest method evaluateQueueSizeRetainMoreThanMinimumDurationAfterDiscard.

@Test
public void evaluateQueueSizeRetainMoreThanMinimumDurationAfterDiscard() {
    Format format1 = videoFormat(/* bitrate= */
    500, /* width= */
    320, /* height= */
    240);
    Format format2 = videoFormat(/* bitrate= */
    1000, /* width= */
    640, /* height= */
    480);
    Format format3 = videoFormat(/* bitrate= */
    2000, /* width= */
    960, /* height= */
    720);
    TrackGroup trackGroup = new TrackGroup(format1, format2, format3);
    FakeMediaChunk chunk1 = new FakeMediaChunk(format1, /* startTimeUs= */
    0, /* endTimeUs= */
    10_000_000);
    FakeMediaChunk chunk2 = new FakeMediaChunk(format1, /* startTimeUs= */
    10_000_000, /* endTimeUs= */
    20_000_000);
    FakeMediaChunk chunk3 = new FakeMediaChunk(format1, /* startTimeUs= */
    20_000_000, /* endTimeUs= */
    30_000_000);
    List<FakeMediaChunk> queue = ImmutableList.of(chunk1, chunk2, chunk3);
    when(mockBandwidthMeter.getBitrateEstimate()).thenReturn(500L);
    AdaptiveTrackSelection adaptiveTrackSelection = prepareAdaptiveTrackSelectionWithMinTimeBetweenBufferReevaluationMs(trackGroup, /* durationToRetainAfterDiscardMs= */
    15_000);
    int initialQueueSize = adaptiveTrackSelection.evaluateQueueSize(0, queue);
    assertThat(initialQueueSize).isEqualTo(3);
    fakeClock.advanceTime(2000);
    when(mockBandwidthMeter.getBitrateEstimate()).thenReturn(1000L);
    // When bandwidth estimation is updated and time has advanced enough, we can discard chunks at
    // the end of the queue now.
    // However, since duration to retain after discard = 15 000 ms, we need to retain at least the
    // first 2 chunks
    int newSize = adaptiveTrackSelection.evaluateQueueSize(0, queue);
    assertThat(newSize).isEqualTo(2);
}

Example 12 with AdaptiveTrackSelection

use of androidx.media3.exoplayer.trackselection.AdaptiveTrackSelection in project media by androidx.

the class AdaptiveTrackSelectionTest method initial_updateSelectedTrack_selectsHighestBitrateWithinBandwidthAndTimeToFirstByte.

@Test
public void initial_updateSelectedTrack_selectsHighestBitrateWithinBandwidthAndTimeToFirstByte() {
    Format format1 = videoFormat(/* bitrate= */
    500, /* width= */
    320, /* height= */
    240);
    Format format2 = videoFormat(/* bitrate= */
    1000, /* width= */
    640, /* height= */
    480);
    Format format3 = videoFormat(/* bitrate= */
    2000, /* width= */
    960, /* height= */
    720);
    TrackGroup trackGroup = new TrackGroup(format1, format2, format3);
    when(mockBandwidthMeter.getBitrateEstimate()).thenReturn(2000L);
    when(mockBandwidthMeter.getTimeToFirstByteEstimateUs()).thenReturn(1_000_000L);
    AdaptiveTrackSelection adaptiveTrackSelection = prepareAdaptiveTrackSelectionWithBandwidthFraction(trackGroup, /* bandwidthFraction= */
    1f);
    assertThat(adaptiveTrackSelection.getSelectedFormat()).isEqualTo(format2);
    assertThat(adaptiveTrackSelection.getSelectionReason()).isEqualTo(C.SELECTION_REASON_INITIAL);
}

Example 13 with AdaptiveTrackSelection

use of androidx.media3.exoplayer.trackselection.AdaptiveTrackSelection in project media by androidx.

the class AdaptiveTrackSelectionTest method initial_updateSelectedTrack_selectsHighestBitrateWithinBandwidth.

@Test
public void initial_updateSelectedTrack_selectsHighestBitrateWithinBandwidth() {
    Format format1 = videoFormat(/* bitrate= */
    500, /* width= */
    320, /* height= */
    240);
    Format format2 = videoFormat(/* bitrate= */
    1000, /* width= */
    640, /* height= */
    480);
    Format format3 = videoFormat(/* bitrate= */
    2000, /* width= */
    960, /* height= */
    720);
    TrackGroup trackGroup = new TrackGroup(format1, format2, format3);
    when(mockBandwidthMeter.getBitrateEstimate()).thenReturn(1000L);
    AdaptiveTrackSelection adaptiveTrackSelection = prepareAdaptiveTrackSelectionWithBandwidthFraction(trackGroup, /* bandwidthFraction= */
    1f);
    assertThat(adaptiveTrackSelection.getSelectedFormat()).isEqualTo(format2);
    assertThat(adaptiveTrackSelection.getSelectionReason()).isEqualTo(C.SELECTION_REASON_INITIAL);
}

Example 14 with AdaptiveTrackSelection

use of androidx.media3.exoplayer.trackselection.AdaptiveTrackSelection in project media by androidx.

the class AdaptiveTrackSelectionTest method updateSelectedTrack_withQueueOfUnknownFormats_doesntThrow.

@Test
public void updateSelectedTrack_withQueueOfUnknownFormats_doesntThrow() {
    Format format1 = videoFormat(/* bitrate= */
    500, /* width= */
    320, /* height= */
    240);
    Format format2 = videoFormat(/* bitrate= */
    1000, /* width= */
    640, /* height= */
    480);
    TrackGroup trackGroup = new TrackGroup(format1, format2);
    AdaptiveTrackSelection adaptiveTrackSelection = prepareTrackSelection(prepareAdaptiveTrackSelection(trackGroup));
    Format unknownFormat = videoFormat(/* bitrate= */
    42, /* width= */
    300, /* height= */
    123);
    FakeMediaChunk chunk = new FakeMediaChunk(unknownFormat, /* startTimeUs= */
    0, /* endTimeUs= */
    2_000_000);
    List<FakeMediaChunk> queue = ImmutableList.of(chunk);
    adaptiveTrackSelection.updateSelectedTrack(/* playbackPositionUs= */
    0, /* bufferedDurationUs= */
    2_000_000, /* availableDurationUs= */
    C.TIME_UNSET, queue, createMediaChunkIterators(trackGroup, TEST_CHUNK_DURATION_US));
    assertThat(adaptiveTrackSelection.getSelectedFormat()).isAnyOf(format1, format2);
}

Example 15 with AdaptiveTrackSelection

use of androidx.media3.exoplayer.trackselection.AdaptiveTrackSelection in project media by androidx.

the class AdaptiveTrackSelectionTest method updateSelectedTrack_withAdaptationCheckpoints_usesOnlyAllocatedBandwidth.

@Test
public void updateSelectedTrack_withAdaptationCheckpoints_usesOnlyAllocatedBandwidth() {
    Format format0 = videoFormat(/* bitrate= */
    100, /* width= */
    160, /* height= */
    120);
    Format format1 = videoFormat(/* bitrate= */
    500, /* width= */
    320, /* height= */
    240);
    Format format2 = videoFormat(/* bitrate= */
    1000, /* width= */
    640, /* height= */
    480);
    Format format3 = videoFormat(/* bitrate= */
    1500, /* width= */
    1024, /* height= */
    768);
    TrackGroup trackGroup = new TrackGroup(format0, format1, format2, format3);
    // Choose checkpoints relative to formats so that one is in the first range, one somewhere in
    // the middle, and one needs to extrapolate beyond the last checkpoint.
    List<AdaptationCheckpoint> checkpoints = ImmutableList.of(new AdaptationCheckpoint(/* totalBandwidth= */
    0, /* allocatedBandwidth= */
    0), new AdaptationCheckpoint(/* totalBandwidth= */
    1500, /* allocatedBandwidth= */
    750), new AdaptationCheckpoint(/* totalBandwidth= */
    3000, /* allocatedBandwidth= */
    750), new AdaptationCheckpoint(/* totalBandwidth= */
    4000, /* allocatedBandwidth= */
    1250), new AdaptationCheckpoint(/* totalBandwidth= */
    5000, /* allocatedBandwidth= */
    1300));
    AdaptiveTrackSelection adaptiveTrackSelection = prepareTrackSelection(prepareAdaptiveTrackSelectionWithAdaptationCheckpoints(trackGroup, checkpoints));
    // Ensure format0 is selected initially so that we can assert the upswitches.
    when(mockBandwidthMeter.getBitrateEstimate()).thenReturn(1L);
    adaptiveTrackSelection.updateSelectedTrack(/* playbackPositionUs= */
    0, /* bufferedDurationUs= */
    999_999_999_999L, /* availableDurationUs= */
    C.TIME_UNSET, /* queue= */
    ImmutableList.of(), createMediaChunkIterators(trackGroup, TEST_CHUNK_DURATION_US));
    assertThat(adaptiveTrackSelection.getSelectedFormat()).isEqualTo(format0);
    when(mockBandwidthMeter.getBitrateEstimate()).thenReturn(999L);
    adaptiveTrackSelection.updateSelectedTrack(/* playbackPositionUs= */
    0, /* bufferedDurationUs= */
    999_999_999_999L, /* availableDurationUs= */
    C.TIME_UNSET, /* queue= */
    ImmutableList.of(), createMediaChunkIterators(trackGroup, TEST_CHUNK_DURATION_US));
    assertThat(adaptiveTrackSelection.getSelectedFormat()).isEqualTo(format0);
    when(mockBandwidthMeter.getBitrateEstimate()).thenReturn(1000L);
    adaptiveTrackSelection.updateSelectedTrack(/* playbackPositionUs= */
    0, /* bufferedDurationUs= */
    999_999_999_999L, /* availableDurationUs= */
    C.TIME_UNSET, /* queue= */
    ImmutableList.of(), createMediaChunkIterators(trackGroup, TEST_CHUNK_DURATION_US));
    assertThat(adaptiveTrackSelection.getSelectedFormat()).isEqualTo(format1);
    when(mockBandwidthMeter.getBitrateEstimate()).thenReturn(2499L);
    adaptiveTrackSelection.updateSelectedTrack(/* playbackPositionUs= */
    0, /* bufferedDurationUs= */
    999_999_999_999L, /* availableDurationUs= */
    C.TIME_UNSET, /* queue= */
    ImmutableList.of(), createMediaChunkIterators(trackGroup, TEST_CHUNK_DURATION_US));
    assertThat(adaptiveTrackSelection.getSelectedFormat()).isEqualTo(format1);
    when(mockBandwidthMeter.getBitrateEstimate()).thenReturn(3500L);
    adaptiveTrackSelection.updateSelectedTrack(/* playbackPositionUs= */
    0, /* bufferedDurationUs= */
    999_999_999_999L, /* availableDurationUs= */
    C.TIME_UNSET, /* queue= */
    ImmutableList.of(), createMediaChunkIterators(trackGroup, TEST_CHUNK_DURATION_US));
    assertThat(adaptiveTrackSelection.getSelectedFormat()).isEqualTo(format2);
    when(mockBandwidthMeter.getBitrateEstimate()).thenReturn(8999L);
    adaptiveTrackSelection.updateSelectedTrack(/* playbackPositionUs= */
    0, /* bufferedDurationUs= */
    999_999_999_999L, /* availableDurationUs= */
    C.TIME_UNSET, /* queue= */
    ImmutableList.of(), createMediaChunkIterators(trackGroup, TEST_CHUNK_DURATION_US));
    assertThat(adaptiveTrackSelection.getSelectedFormat()).isEqualTo(format2);
    when(mockBandwidthMeter.getBitrateEstimate()).thenReturn(9000L);
    adaptiveTrackSelection.updateSelectedTrack(/* playbackPositionUs= */
    0, /* bufferedDurationUs= */
    999_999_999_999L, /* availableDurationUs= */
    C.TIME_UNSET, /* queue= */
    ImmutableList.of(), createMediaChunkIterators(trackGroup, TEST_CHUNK_DURATION_US));
    assertThat(adaptiveTrackSelection.getSelectedFormat()).isEqualTo(format3);
}