diff options
Diffstat (limited to 'mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/trackselection/MappingTrackSelector.java')
| -rw-r--r-- | mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/trackselection/MappingTrackSelector.java | 541 |
1 files changed, 541 insertions, 0 deletions
diff --git a/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/trackselection/MappingTrackSelector.java b/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/trackselection/MappingTrackSelector.java new file mode 100644 index 0000000000..8ba581020b --- /dev/null +++ b/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/trackselection/MappingTrackSelector.java @@ -0,0 +1,541 @@ +/* + * Copyright (C) 2016 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 org.mozilla.thirdparty.com.google.android.exoplayer2.trackselection; + +import android.util.Pair; +import androidx.annotation.IntDef; +import androidx.annotation.Nullable; +import org.mozilla.thirdparty.com.google.android.exoplayer2.C; +import org.mozilla.thirdparty.com.google.android.exoplayer2.ExoPlaybackException; +import org.mozilla.thirdparty.com.google.android.exoplayer2.Renderer; +import org.mozilla.thirdparty.com.google.android.exoplayer2.RendererCapabilities; +import org.mozilla.thirdparty.com.google.android.exoplayer2.RendererCapabilities.AdaptiveSupport; +import org.mozilla.thirdparty.com.google.android.exoplayer2.RendererCapabilities.Capabilities; +import org.mozilla.thirdparty.com.google.android.exoplayer2.RendererCapabilities.FormatSupport; +import org.mozilla.thirdparty.com.google.android.exoplayer2.RendererConfiguration; +import org.mozilla.thirdparty.com.google.android.exoplayer2.Timeline; +import org.mozilla.thirdparty.com.google.android.exoplayer2.source.MediaSource.MediaPeriodId; +import org.mozilla.thirdparty.com.google.android.exoplayer2.source.TrackGroup; +import org.mozilla.thirdparty.com.google.android.exoplayer2.source.TrackGroupArray; +import org.mozilla.thirdparty.com.google.android.exoplayer2.util.MimeTypes; +import org.mozilla.thirdparty.com.google.android.exoplayer2.util.Util; +import java.lang.annotation.Documented; +import java.lang.annotation.Retention; +import java.lang.annotation.RetentionPolicy; +import java.util.Arrays; +import org.checkerframework.checker.nullness.compatqual.NullableType; + +/** + * Base class for {@link TrackSelector}s that first establish a mapping between {@link TrackGroup}s + * and {@link Renderer}s, and then from that mapping create a {@link TrackSelection} for each + * renderer. + */ +public abstract class MappingTrackSelector extends TrackSelector { + + /** + * Provides mapped track information for each renderer. + */ + public static final class MappedTrackInfo { + + /** + * Levels of renderer support. Higher numerical values indicate higher levels of support. One of + * {@link #RENDERER_SUPPORT_NO_TRACKS}, {@link #RENDERER_SUPPORT_UNSUPPORTED_TRACKS}, {@link + * #RENDERER_SUPPORT_EXCEEDS_CAPABILITIES_TRACKS} or {@link #RENDERER_SUPPORT_PLAYABLE_TRACKS}. + */ + @Documented + @Retention(RetentionPolicy.SOURCE) + @IntDef({ + RENDERER_SUPPORT_NO_TRACKS, + RENDERER_SUPPORT_UNSUPPORTED_TRACKS, + RENDERER_SUPPORT_EXCEEDS_CAPABILITIES_TRACKS, + RENDERER_SUPPORT_PLAYABLE_TRACKS + }) + @interface RendererSupport {} + /** The renderer does not have any associated tracks. */ + public static final int RENDERER_SUPPORT_NO_TRACKS = 0; + /** + * The renderer has tracks mapped to it, but all are unsupported. In other words, {@link + * #getTrackSupport(int, int, int)} returns {@link RendererCapabilities#FORMAT_UNSUPPORTED_DRM}, + * {@link RendererCapabilities#FORMAT_UNSUPPORTED_SUBTYPE} or {@link + * RendererCapabilities#FORMAT_UNSUPPORTED_TYPE} for all tracks mapped to the renderer. + */ + public static final int RENDERER_SUPPORT_UNSUPPORTED_TRACKS = 1; + /** + * The renderer has tracks mapped to it and at least one is of a supported type, but all such + * tracks exceed the renderer's capabilities. In other words, {@link #getTrackSupport(int, int, + * int)} returns {@link RendererCapabilities#FORMAT_EXCEEDS_CAPABILITIES} for at least one + * track mapped to the renderer, but does not return {@link + * RendererCapabilities#FORMAT_HANDLED} for any tracks mapped to the renderer. + */ + public static final int RENDERER_SUPPORT_EXCEEDS_CAPABILITIES_TRACKS = 2; + /** + * The renderer has tracks mapped to it, and at least one such track is playable. In other + * words, {@link #getTrackSupport(int, int, int)} returns {@link + * RendererCapabilities#FORMAT_HANDLED} for at least one track mapped to the renderer. + */ + public static final int RENDERER_SUPPORT_PLAYABLE_TRACKS = 3; + + /** @deprecated Use {@link #getRendererCount()}. */ + @Deprecated public final int length; + + private final int rendererCount; + private final int[] rendererTrackTypes; + private final TrackGroupArray[] rendererTrackGroups; + @AdaptiveSupport private final int[] rendererMixedMimeTypeAdaptiveSupports; + @Capabilities private final int[][][] rendererFormatSupports; + private final TrackGroupArray unmappedTrackGroups; + + /** + * @param rendererTrackTypes The track type handled by each renderer. + * @param rendererTrackGroups The {@link TrackGroup}s mapped to each renderer. + * @param rendererMixedMimeTypeAdaptiveSupports The {@link AdaptiveSupport} for mixed MIME type + * adaptation for the renderer. + * @param rendererFormatSupports The {@link Capabilities} for each mapped track, indexed by + * renderer, track group and track (in that order). + * @param unmappedTrackGroups {@link TrackGroup}s not mapped to any renderer. + */ + @SuppressWarnings("deprecation") + /* package */ MappedTrackInfo( + int[] rendererTrackTypes, + TrackGroupArray[] rendererTrackGroups, + @AdaptiveSupport int[] rendererMixedMimeTypeAdaptiveSupports, + @Capabilities int[][][] rendererFormatSupports, + TrackGroupArray unmappedTrackGroups) { + this.rendererTrackTypes = rendererTrackTypes; + this.rendererTrackGroups = rendererTrackGroups; + this.rendererFormatSupports = rendererFormatSupports; + this.rendererMixedMimeTypeAdaptiveSupports = rendererMixedMimeTypeAdaptiveSupports; + this.unmappedTrackGroups = unmappedTrackGroups; + this.rendererCount = rendererTrackTypes.length; + this.length = rendererCount; + } + + /** Returns the number of renderers. */ + public int getRendererCount() { + return rendererCount; + } + + /** + * Returns the track type that the renderer at a given index handles. + * + * @see Renderer#getTrackType() + * @param rendererIndex The renderer index. + * @return One of the {@code TRACK_TYPE_*} constants defined in {@link C}. + */ + public int getRendererType(int rendererIndex) { + return rendererTrackTypes[rendererIndex]; + } + + /** + * Returns the {@link TrackGroup}s mapped to the renderer at the specified index. + * + * @param rendererIndex The renderer index. + * @return The corresponding {@link TrackGroup}s. + */ + public TrackGroupArray getTrackGroups(int rendererIndex) { + return rendererTrackGroups[rendererIndex]; + } + + /** + * Returns the extent to which a renderer can play the tracks that are mapped to it. + * + * @param rendererIndex The renderer index. + * @return The {@link RendererSupport}. + */ + @RendererSupport + public int getRendererSupport(int rendererIndex) { + @RendererSupport int bestRendererSupport = RENDERER_SUPPORT_NO_TRACKS; + @Capabilities int[][] rendererFormatSupport = rendererFormatSupports[rendererIndex]; + for (@Capabilities int[] trackGroupFormatSupport : rendererFormatSupport) { + for (@Capabilities int trackFormatSupport : trackGroupFormatSupport) { + int trackRendererSupport; + switch (RendererCapabilities.getFormatSupport(trackFormatSupport)) { + case RendererCapabilities.FORMAT_HANDLED: + return RENDERER_SUPPORT_PLAYABLE_TRACKS; + case RendererCapabilities.FORMAT_EXCEEDS_CAPABILITIES: + trackRendererSupport = RENDERER_SUPPORT_EXCEEDS_CAPABILITIES_TRACKS; + break; + case RendererCapabilities.FORMAT_UNSUPPORTED_TYPE: + case RendererCapabilities.FORMAT_UNSUPPORTED_SUBTYPE: + case RendererCapabilities.FORMAT_UNSUPPORTED_DRM: + trackRendererSupport = RENDERER_SUPPORT_UNSUPPORTED_TRACKS; + break; + default: + throw new IllegalStateException(); + } + bestRendererSupport = Math.max(bestRendererSupport, trackRendererSupport); + } + } + return bestRendererSupport; + } + + /** @deprecated Use {@link #getTypeSupport(int)}. */ + @Deprecated + @RendererSupport + public int getTrackTypeRendererSupport(int trackType) { + return getTypeSupport(trackType); + } + + /** + * Returns the extent to which tracks of a specified type are supported. This is the best level + * of support obtained from {@link #getRendererSupport(int)} for all renderers that handle the + * specified type. If no such renderers exist then {@link #RENDERER_SUPPORT_NO_TRACKS} is + * returned. + * + * @param trackType The track type. One of the {@link C} {@code TRACK_TYPE_*} constants. + * @return The {@link RendererSupport}. + */ + @RendererSupport + public int getTypeSupport(int trackType) { + @RendererSupport int bestRendererSupport = RENDERER_SUPPORT_NO_TRACKS; + for (int i = 0; i < rendererCount; i++) { + if (rendererTrackTypes[i] == trackType) { + bestRendererSupport = Math.max(bestRendererSupport, getRendererSupport(i)); + } + } + return bestRendererSupport; + } + + /** @deprecated Use {@link #getTrackSupport(int, int, int)}. */ + @Deprecated + @FormatSupport + public int getTrackFormatSupport(int rendererIndex, int groupIndex, int trackIndex) { + return getTrackSupport(rendererIndex, groupIndex, trackIndex); + } + + /** + * Returns the extent to which an individual track is supported by the renderer. + * + * @param rendererIndex The renderer index. + * @param groupIndex The index of the track group to which the track belongs. + * @param trackIndex The index of the track within the track group. + * @return The {@link FormatSupport}. + */ + @FormatSupport + public int getTrackSupport(int rendererIndex, int groupIndex, int trackIndex) { + return RendererCapabilities.getFormatSupport( + rendererFormatSupports[rendererIndex][groupIndex][trackIndex]); + } + + /** + * Returns the extent to which a renderer supports adaptation between supported tracks in a + * specified {@link TrackGroup}. + * + * <p>Tracks for which {@link #getTrackSupport(int, int, int)} returns {@link + * RendererCapabilities#FORMAT_HANDLED} are always considered. Tracks for which {@link + * #getTrackSupport(int, int, int)} returns {@link + * RendererCapabilities#FORMAT_EXCEEDS_CAPABILITIES} are also considered if {@code + * includeCapabilitiesExceededTracks} is set to {@code true}. Tracks for which {@link + * #getTrackSupport(int, int, int)} returns {@link RendererCapabilities#FORMAT_UNSUPPORTED_DRM}, + * {@link RendererCapabilities#FORMAT_UNSUPPORTED_TYPE} or {@link + * RendererCapabilities#FORMAT_UNSUPPORTED_SUBTYPE} are never considered. + * + * @param rendererIndex The renderer index. + * @param groupIndex The index of the track group. + * @param includeCapabilitiesExceededTracks Whether tracks that exceed the capabilities of the + * renderer are included when determining support. + * @return The {@link AdaptiveSupport}. + */ + @AdaptiveSupport + public int getAdaptiveSupport( + int rendererIndex, int groupIndex, boolean includeCapabilitiesExceededTracks) { + int trackCount = rendererTrackGroups[rendererIndex].get(groupIndex).length; + // Iterate over the tracks in the group, recording the indices of those to consider. + int[] trackIndices = new int[trackCount]; + int trackIndexCount = 0; + for (int i = 0; i < trackCount; i++) { + @FormatSupport int fixedSupport = getTrackSupport(rendererIndex, groupIndex, i); + if (fixedSupport == RendererCapabilities.FORMAT_HANDLED + || (includeCapabilitiesExceededTracks + && fixedSupport == RendererCapabilities.FORMAT_EXCEEDS_CAPABILITIES)) { + trackIndices[trackIndexCount++] = i; + } + } + trackIndices = Arrays.copyOf(trackIndices, trackIndexCount); + return getAdaptiveSupport(rendererIndex, groupIndex, trackIndices); + } + + /** + * Returns the extent to which a renderer supports adaptation between specified tracks within a + * {@link TrackGroup}. + * + * @param rendererIndex The renderer index. + * @param groupIndex The index of the track group. + * @return The {@link AdaptiveSupport}. + */ + @AdaptiveSupport + public int getAdaptiveSupport(int rendererIndex, int groupIndex, int[] trackIndices) { + int handledTrackCount = 0; + @AdaptiveSupport int adaptiveSupport = RendererCapabilities.ADAPTIVE_SEAMLESS; + boolean multipleMimeTypes = false; + String firstSampleMimeType = null; + for (int i = 0; i < trackIndices.length; i++) { + int trackIndex = trackIndices[i]; + String sampleMimeType = + rendererTrackGroups[rendererIndex].get(groupIndex).getFormat(trackIndex).sampleMimeType; + if (handledTrackCount++ == 0) { + firstSampleMimeType = sampleMimeType; + } else { + multipleMimeTypes |= !Util.areEqual(firstSampleMimeType, sampleMimeType); + } + adaptiveSupport = + Math.min( + adaptiveSupport, + RendererCapabilities.getAdaptiveSupport( + rendererFormatSupports[rendererIndex][groupIndex][i])); + } + return multipleMimeTypes + ? Math.min(adaptiveSupport, rendererMixedMimeTypeAdaptiveSupports[rendererIndex]) + : adaptiveSupport; + } + + /** @deprecated Use {@link #getUnmappedTrackGroups()}. */ + @Deprecated + public TrackGroupArray getUnassociatedTrackGroups() { + return getUnmappedTrackGroups(); + } + + /** Returns {@link TrackGroup}s not mapped to any renderer. */ + public TrackGroupArray getUnmappedTrackGroups() { + return unmappedTrackGroups; + } + + } + + @Nullable private MappedTrackInfo currentMappedTrackInfo; + + /** + * Returns the mapping information for the currently active track selection, or null if no + * selection is currently active. + */ + public final @Nullable MappedTrackInfo getCurrentMappedTrackInfo() { + return currentMappedTrackInfo; + } + + // TrackSelector implementation. + + @Override + public final void onSelectionActivated(Object info) { + currentMappedTrackInfo = (MappedTrackInfo) info; + } + + @Override + public final TrackSelectorResult selectTracks( + RendererCapabilities[] rendererCapabilities, + TrackGroupArray trackGroups, + MediaPeriodId periodId, + Timeline timeline) + throws ExoPlaybackException { + // Structures into which data will be written during the selection. The extra item at the end + // of each array is to store data associated with track groups that cannot be associated with + // any renderer. + int[] rendererTrackGroupCounts = new int[rendererCapabilities.length + 1]; + TrackGroup[][] rendererTrackGroups = new TrackGroup[rendererCapabilities.length + 1][]; + @Capabilities int[][][] rendererFormatSupports = new int[rendererCapabilities.length + 1][][]; + for (int i = 0; i < rendererTrackGroups.length; i++) { + rendererTrackGroups[i] = new TrackGroup[trackGroups.length]; + rendererFormatSupports[i] = new int[trackGroups.length][]; + } + + // Determine the extent to which each renderer supports mixed mimeType adaptation. + @AdaptiveSupport + int[] rendererMixedMimeTypeAdaptationSupports = + getMixedMimeTypeAdaptationSupports(rendererCapabilities); + + // Associate each track group to a preferred renderer, and evaluate the support that the + // renderer provides for each track in the group. + for (int groupIndex = 0; groupIndex < trackGroups.length; groupIndex++) { + TrackGroup group = trackGroups.get(groupIndex); + // Associate the group to a preferred renderer. + boolean preferUnassociatedRenderer = + MimeTypes.getTrackType(group.getFormat(0).sampleMimeType) == C.TRACK_TYPE_METADATA; + int rendererIndex = + findRenderer( + rendererCapabilities, group, rendererTrackGroupCounts, preferUnassociatedRenderer); + // Evaluate the support that the renderer provides for each track in the group. + @Capabilities + int[] rendererFormatSupport = + rendererIndex == rendererCapabilities.length + ? new int[group.length] + : getFormatSupport(rendererCapabilities[rendererIndex], group); + // Stash the results. + int rendererTrackGroupCount = rendererTrackGroupCounts[rendererIndex]; + rendererTrackGroups[rendererIndex][rendererTrackGroupCount] = group; + rendererFormatSupports[rendererIndex][rendererTrackGroupCount] = rendererFormatSupport; + rendererTrackGroupCounts[rendererIndex]++; + } + + // Create a track group array for each renderer, and trim each rendererFormatSupports entry. + TrackGroupArray[] rendererTrackGroupArrays = new TrackGroupArray[rendererCapabilities.length]; + int[] rendererTrackTypes = new int[rendererCapabilities.length]; + for (int i = 0; i < rendererCapabilities.length; i++) { + int rendererTrackGroupCount = rendererTrackGroupCounts[i]; + rendererTrackGroupArrays[i] = + new TrackGroupArray( + Util.nullSafeArrayCopy(rendererTrackGroups[i], rendererTrackGroupCount)); + rendererFormatSupports[i] = + Util.nullSafeArrayCopy(rendererFormatSupports[i], rendererTrackGroupCount); + rendererTrackTypes[i] = rendererCapabilities[i].getTrackType(); + } + + // Create a track group array for track groups not mapped to a renderer. + int unmappedTrackGroupCount = rendererTrackGroupCounts[rendererCapabilities.length]; + TrackGroupArray unmappedTrackGroupArray = + new TrackGroupArray( + Util.nullSafeArrayCopy( + rendererTrackGroups[rendererCapabilities.length], unmappedTrackGroupCount)); + + // Package up the track information and selections. + MappedTrackInfo mappedTrackInfo = + new MappedTrackInfo( + rendererTrackTypes, + rendererTrackGroupArrays, + rendererMixedMimeTypeAdaptationSupports, + rendererFormatSupports, + unmappedTrackGroupArray); + + Pair<@NullableType RendererConfiguration[], @NullableType TrackSelection[]> result = + selectTracks( + mappedTrackInfo, rendererFormatSupports, rendererMixedMimeTypeAdaptationSupports); + return new TrackSelectorResult(result.first, result.second, mappedTrackInfo); + } + + /** + * Given mapped track information, returns a track selection and configuration for each renderer. + * + * @param mappedTrackInfo Mapped track information. + * @param rendererFormatSupports The {@link Capabilities} for ach mapped track, indexed by + * renderer, track group and track (in that order). + * @param rendererMixedMimeTypeAdaptationSupport The {@link AdaptiveSupport} for mixed MIME type + * adaptation for the renderer. + * @return A pair consisting of the track selections and configurations for each renderer. A null + * configuration indicates the renderer should be disabled, in which case the track selection + * will also be null. A track selection may also be null for a non-disabled renderer if {@link + * RendererCapabilities#getTrackType()} is {@link C#TRACK_TYPE_NONE}. + * @throws ExoPlaybackException If an error occurs while selecting the tracks. + */ + protected abstract Pair<@NullableType RendererConfiguration[], @NullableType TrackSelection[]> + selectTracks( + MappedTrackInfo mappedTrackInfo, + @Capabilities int[][][] rendererFormatSupports, + @AdaptiveSupport int[] rendererMixedMimeTypeAdaptationSupport) + throws ExoPlaybackException; + + /** + * Finds the renderer to which the provided {@link TrackGroup} should be mapped. + * + * <p>A {@link TrackGroup} is mapped to the renderer that reports the highest of (listed in + * decreasing order of support) {@link RendererCapabilities#FORMAT_HANDLED}, {@link + * RendererCapabilities#FORMAT_EXCEEDS_CAPABILITIES}, {@link + * RendererCapabilities#FORMAT_UNSUPPORTED_DRM} and {@link + * RendererCapabilities#FORMAT_UNSUPPORTED_SUBTYPE}. + * + * <p>In the case that two or more renderers report the same level of support, the assignment + * depends on {@code preferUnassociatedRenderer}. + * + * <ul> + * <li>If {@code preferUnassociatedRenderer} is false, the renderer with the lowest index is + * chosen regardless of how many other track groups are already mapped to this renderer. + * <li>If {@code preferUnassociatedRenderer} is true, the renderer with the lowest index and no + * other mapped track group is chosen, or the renderer with the lowest index if all + * available renderers have already mapped track groups. + * </ul> + * + * <p>If all renderers report {@link RendererCapabilities#FORMAT_UNSUPPORTED_TYPE} for all of the + * tracks in the group, then {@code renderers.length} is returned to indicate that the group was + * not mapped to any renderer. + * + * @param rendererCapabilities The {@link RendererCapabilities} of the renderers. + * @param group The track group to map to a renderer. + * @param rendererTrackGroupCounts The number of already mapped track groups for each renderer. + * @param preferUnassociatedRenderer Whether renderers unassociated to any track group should be + * preferred. + * @return The index of the renderer to which the track group was mapped, or {@code + * renderers.length} if it was not mapped to any renderer. + * @throws ExoPlaybackException If an error occurs finding a renderer. + */ + private static int findRenderer( + RendererCapabilities[] rendererCapabilities, + TrackGroup group, + int[] rendererTrackGroupCounts, + boolean preferUnassociatedRenderer) + throws ExoPlaybackException { + int bestRendererIndex = rendererCapabilities.length; + @FormatSupport int bestFormatSupportLevel = RendererCapabilities.FORMAT_UNSUPPORTED_TYPE; + boolean bestRendererIsUnassociated = true; + for (int rendererIndex = 0; rendererIndex < rendererCapabilities.length; rendererIndex++) { + RendererCapabilities rendererCapability = rendererCapabilities[rendererIndex]; + @FormatSupport int formatSupportLevel = RendererCapabilities.FORMAT_UNSUPPORTED_TYPE; + for (int trackIndex = 0; trackIndex < group.length; trackIndex++) { + @FormatSupport + int trackFormatSupportLevel = + RendererCapabilities.getFormatSupport( + rendererCapability.supportsFormat(group.getFormat(trackIndex))); + formatSupportLevel = Math.max(formatSupportLevel, trackFormatSupportLevel); + } + boolean rendererIsUnassociated = rendererTrackGroupCounts[rendererIndex] == 0; + if (formatSupportLevel > bestFormatSupportLevel + || (formatSupportLevel == bestFormatSupportLevel + && preferUnassociatedRenderer + && !bestRendererIsUnassociated + && rendererIsUnassociated)) { + bestRendererIndex = rendererIndex; + bestFormatSupportLevel = formatSupportLevel; + bestRendererIsUnassociated = rendererIsUnassociated; + } + } + return bestRendererIndex; + } + + /** + * Calls {@link RendererCapabilities#supportsFormat} for each track in the specified {@link + * TrackGroup}, returning the results in an array. + * + * @param rendererCapabilities The {@link RendererCapabilities} of the renderer. + * @param group The track group to evaluate. + * @return An array containing {@link Capabilities} for each track in the group. + * @throws ExoPlaybackException If an error occurs determining the format support. + */ + @Capabilities + private static int[] getFormatSupport(RendererCapabilities rendererCapabilities, TrackGroup group) + throws ExoPlaybackException { + @Capabilities int[] formatSupport = new int[group.length]; + for (int i = 0; i < group.length; i++) { + formatSupport[i] = rendererCapabilities.supportsFormat(group.getFormat(i)); + } + return formatSupport; + } + + /** + * Calls {@link RendererCapabilities#supportsMixedMimeTypeAdaptation()} for each renderer, + * returning the results in an array. + * + * @param rendererCapabilities The {@link RendererCapabilities} of the renderers. + * @return An array containing the {@link AdaptiveSupport} for mixed MIME type adaptation for the + * renderer. + * @throws ExoPlaybackException If an error occurs determining the adaptation support. + */ + @AdaptiveSupport + private static int[] getMixedMimeTypeAdaptationSupports( + RendererCapabilities[] rendererCapabilities) throws ExoPlaybackException { + @AdaptiveSupport int[] mixedMimeTypeAdaptationSupport = new int[rendererCapabilities.length]; + for (int i = 0; i < mixedMimeTypeAdaptationSupport.length; i++) { + mixedMimeTypeAdaptationSupport[i] = rendererCapabilities[i].supportsMixedMimeTypeAdaptation(); + } + return mixedMimeTypeAdaptationSupport; + } + +} |