Add capability flags for hardware and decoder support

Issue: google/ExoPlayer#9565
PiperOrigin-RevId: 415235358

library/core/src/main/java/com/google/android/exoplayer2/RendererCapabilities.java

@@ -60,16 +60,16 @@ public interface RendererCapabilities {
   @interface AdaptiveSupport {}
 
   /** A mask to apply to {@link Capabilities} to obtain the {@link AdaptiveSupport} only. */
-  int ADAPTIVE_SUPPORT_MASK = 0b11000;
+  int ADAPTIVE_SUPPORT_MASK = 0b11 << 3;
   /** The {@link Renderer} can seamlessly adapt between formats. */
-  int ADAPTIVE_SEAMLESS = 0b10000;
+  int ADAPTIVE_SEAMLESS = 0b10 << 3;
   /**
    * The {@link Renderer} can adapt between formats, but may suffer a brief discontinuity
    * (~50-100ms) when adaptation occurs.
    */
-  int ADAPTIVE_NOT_SEAMLESS = 0b01000;
+  int ADAPTIVE_NOT_SEAMLESS = 0b01 << 3;
   /** The {@link Renderer} does not support adaptation between formats. */
-  int ADAPTIVE_NOT_SUPPORTED = 0b00000;
+  int ADAPTIVE_NOT_SUPPORTED = 0;
 
   /**
    * Level of renderer support for tunneling. One of {@link #TUNNELING_SUPPORTED} or {@link
@@ -80,20 +80,62 @@ public interface RendererCapabilities {
   @IntDef({TUNNELING_SUPPORTED, TUNNELING_NOT_SUPPORTED})
   @interface TunnelingSupport {}
 
-  /** A mask to apply to {@link Capabilities} to obtain the {@link TunnelingSupport} only. */
-  int TUNNELING_SUPPORT_MASK = 0b100000;
+  /** A mask to apply to {@link Capabilities} to obtain {@link TunnelingSupport} only. */
+  int TUNNELING_SUPPORT_MASK = 0b1 << 5;
   /** The {@link Renderer} supports tunneled output. */
-  int TUNNELING_SUPPORTED = 0b100000;
+  int TUNNELING_SUPPORTED = 0b1 << 5;
   /** The {@link Renderer} does not support tunneled output. */
-  int TUNNELING_NOT_SUPPORTED = 0b000000;
+  int TUNNELING_NOT_SUPPORTED = 0;
+
+  /**
+   * Level of renderer support for hardware acceleration. One of {@link
+   * #HARDWARE_ACCELERATION_SUPPORTED} and {@link #HARDWARE_ACCELERATION_NOT_SUPPORTED}.
+   *
+   * <p>For video renderers, the level of support is indicated for non-tunneled output.
+   */
+  @Documented
+  @Retention(RetentionPolicy.SOURCE)
+  @IntDef({
+    HARDWARE_ACCELERATION_SUPPORTED,
+    HARDWARE_ACCELERATION_NOT_SUPPORTED,
+  })
+  @interface HardwareAccelerationSupport {}
+  /** A mask to apply to {@link Capabilities} to obtain {@link HardwareAccelerationSupport} only. */
+  int HARDWARE_ACCELERATION_SUPPORT_MASK = 0b1 << 6;
+  /** The renderer is able to use hardware acceleration. */
+  int HARDWARE_ACCELERATION_SUPPORTED = 0b1 << 6;
+  /** The renderer is not able to use hardware acceleration. */
+  int HARDWARE_ACCELERATION_NOT_SUPPORTED = 0;
+
+  /**
+   * Level of decoder support. One of {@link #DECODER_SUPPORT_PRIMARY} and {@link
+   * #DECODER_SUPPORT_FALLBACK}.
+   *
+   * <p>For video renderers, the level of support is indicated for non-tunneled output.
+   */
+  @Documented
+  @Retention(RetentionPolicy.SOURCE)
+  @IntDef({
+    DECODER_SUPPORT_PRIMARY,
+    DECODER_SUPPORT_FALLBACK,
+  })
+  @interface DecoderSupport {}
+  /** A mask to apply to {@link Capabilities} to obtain {@link DecoderSupport} only. */
+  int MODE_SUPPORT_MASK = 0b1 << 7;
+  /** The renderer is able to use the primary decoder for the format's MIME type. */
+  int DECODER_SUPPORT_PRIMARY = 0b1 << 7;
+  /** The renderer will use a fallback decoder. */
+  int DECODER_SUPPORT_FALLBACK = 0;
 
   /**
    * Combined renderer capabilities.
    *
-   * <p>This is a bitwise OR of {@link C.FormatSupport}, {@link AdaptiveSupport} and {@link
-   * TunnelingSupport}. Use {@link #getFormatSupport(int)}, {@link #getAdaptiveSupport(int)} or
-   * {@link #getTunnelingSupport(int)} to obtain the individual flags. And use {@link #create(int)}
-   * or {@link #create(int, int, int)} to create the combined capabilities.
+   * <p>This is a bitwise OR of {@link C.FormatSupport}, {@link AdaptiveSupport}, {@link
+   * TunnelingSupport}, {@link HardwareAccelerationSupport} and {@link DecoderSupport}. Use {@link
+   * #getFormatSupport}, {@link #getAdaptiveSupport}, {@link #getTunnelingSupport}, {@link
+   * #getHardwareAccelerationSupport} and {@link #getDecoderSupport} to obtain individual
+   * components. Use {@link #create(int)}, {@link #create(int, int, int)} or {@link #create(int,
+   * int, int, int, int)} to create combined capabilities from individual components.
    *
    * <p>Possible values:
    *
@@ -111,6 +153,11 @@ public interface RendererCapabilities {
    *       #TUNNELING_SUPPORTED} and {@link #TUNNELING_NOT_SUPPORTED}. Only set if the level of
    *       support for the format itself is {@link C#FORMAT_HANDLED} or {@link
    *       C#FORMAT_EXCEEDS_CAPABILITIES}.
+   *   <li>{@link HardwareAccelerationSupport}: The level of support for hardware acceleration. One
+   *       of {@link #HARDWARE_ACCELERATION_SUPPORTED} and {@link
+   *       #HARDWARE_ACCELERATION_NOT_SUPPORTED}.
+   *   <li>{@link DecoderSupport}: The level of decoder support. One of {@link
+   *       #DECODER_SUPPORT_PRIMARY} and {@link #DECODER_SUPPORT_FALLBACK}.
    * </ul>
    */
   @Documented
@@ -122,8 +169,10 @@ public interface RendererCapabilities {
   /**
    * Returns {@link Capabilities} for the given {@link C.FormatSupport}.
    *
-   * <p>The {@link AdaptiveSupport} is set to {@link #ADAPTIVE_NOT_SUPPORTED} and {{@link
-   * TunnelingSupport} is set to {@link #TUNNELING_NOT_SUPPORTED}.
+   * <p>{@link AdaptiveSupport} is set to {@link #ADAPTIVE_NOT_SUPPORTED}, {@link TunnelingSupport}
+   * is set to {@link #TUNNELING_NOT_SUPPORTED}, {@link HardwareAccelerationSupport} is set to
+   * {@link #HARDWARE_ACCELERATION_NOT_SUPPORTED} and {@link DecoderSupport} is set to {@link
+   * #DECODER_SUPPORT_PRIMARY}.
    *
    * @param formatSupport The {@link C.FormatSupport}.
    * @return The combined {@link Capabilities} of the given {@link C.FormatSupport}, {@link
@@ -138,19 +187,53 @@ public interface RendererCapabilities {
    * Returns {@link Capabilities} combining the given {@link C.FormatSupport}, {@link
    * AdaptiveSupport} and {@link TunnelingSupport}.
    *
+   * <p>{@link HardwareAccelerationSupport} is set to {@link #HARDWARE_ACCELERATION_NOT_SUPPORTED}
+   * and {@link DecoderSupport} is set to {@link #DECODER_SUPPORT_PRIMARY}.
+   *
    * @param formatSupport The {@link C.FormatSupport}.
    * @param adaptiveSupport The {@link AdaptiveSupport}.
    * @param tunnelingSupport The {@link TunnelingSupport}.
    * @return The combined {@link Capabilities}.
    */
+  @Capabilities
+  static int create(
+      @C.FormatSupport int formatSupport,
+      @AdaptiveSupport int adaptiveSupport,
+      @TunnelingSupport int tunnelingSupport) {
+    return create(
+        formatSupport,
+        adaptiveSupport,
+        tunnelingSupport,
+        HARDWARE_ACCELERATION_NOT_SUPPORTED,
+        DECODER_SUPPORT_PRIMARY);
+  }
+
+  /**
+   * Returns {@link Capabilities} combining the given {@link C.FormatSupport}, {@link
+   * AdaptiveSupport}, {@link TunnelingSupport}, {@link HardwareAccelerationSupport} and {@link
+   * DecoderSupport}.
+   *
+   * @param formatSupport The {@link C.FormatSupport}.
+   * @param adaptiveSupport The {@link AdaptiveSupport}.
+   * @param tunnelingSupport The {@link TunnelingSupport}.
+   * @param hardwareAccelerationSupport The {@link HardwareAccelerationSupport}.
+   * @param decoderSupport The {@link DecoderSupport}.
+   * @return The combined {@link Capabilities}.
+   */
   // Suppression needed for IntDef casting.
   @SuppressLint("WrongConstant")
   @Capabilities
   static int create(
       @C.FormatSupport int formatSupport,
       @AdaptiveSupport int adaptiveSupport,
-      @TunnelingSupport int tunnelingSupport) {
-    return formatSupport | adaptiveSupport | tunnelingSupport;
+      @TunnelingSupport int tunnelingSupport,
+      @HardwareAccelerationSupport int hardwareAccelerationSupport,
+      @DecoderSupport int decoderSupport) {
+    return formatSupport
+        | adaptiveSupport
+        | tunnelingSupport
+        | hardwareAccelerationSupport
+        | decoderSupport;
   }
 
   /**
@@ -192,6 +275,32 @@ public interface RendererCapabilities {
     return supportFlags & TUNNELING_SUPPORT_MASK;
   }
 
+  /**
+   * Returns the {@link HardwareAccelerationSupport} from the combined {@link Capabilities}.
+   *
+   * @param supportFlags The combined {@link Capabilities}.
+   * @return The {@link HardwareAccelerationSupport} only.
+   */
+  // Suppression needed for IntDef casting.
+  @SuppressLint("WrongConstant")
+  @HardwareAccelerationSupport
+  static int getHardwareAccelerationSupport(@Capabilities int supportFlags) {
+    return supportFlags & HARDWARE_ACCELERATION_SUPPORT_MASK;
+  }
+
+  /**
+   * Returns the {@link DecoderSupport} from the combined {@link Capabilities}.
+   *
+   * @param supportFlags The combined {@link Capabilities}.
+   * @return The {@link DecoderSupport} only.
+   */
+  // Suppression needed for IntDef casting.
+  @SuppressLint("WrongConstant")
+  @DecoderSupport
+  static int getDecoderSupport(@Capabilities int supportFlags) {
+    return supportFlags & MODE_SUPPORT_MASK;
+  }
+
   /** Returns the name of the {@link Renderer}. */
   String getName();
 

library/core/src/main/java/com/google/android/exoplayer2/audio/MediaCodecAudioRenderer.java

@@ -314,6 +314,7 @@ public class MediaCodecAudioRenderer extends MediaCodecRenderer implements Media
     // format's MIME type, according to the MediaCodecSelector.
     MediaCodecInfo decoderInfo = decoderInfos.get(0);
     boolean isFormatSupported = decoderInfo.isFormatSupported(format);
+    boolean isPreferredDecoder = true;
     if (!isFormatSupported) {
       // Check whether any of the other decoders support the format.
       for (int i = 1; i < decoderInfos.size(); i++) {
@@ -321,18 +322,31 @@ public class MediaCodecAudioRenderer extends MediaCodecRenderer implements Media
         if (otherDecoderInfo.isFormatSupported(format)) {
           decoderInfo = otherDecoderInfo;
           isFormatSupported = true;
+          isPreferredDecoder = false;
           break;
         }
       }
     }
+    @C.FormatSupport
+    int formatSupport = isFormatSupported ? C.FORMAT_HANDLED : C.FORMAT_EXCEEDS_CAPABILITIES;
     @AdaptiveSupport
     int adaptiveSupport =
         isFormatSupported && decoderInfo.isSeamlessAdaptationSupported(format)
             ? ADAPTIVE_SEAMLESS
             : ADAPTIVE_NOT_SEAMLESS;
-    @C.FormatSupport
-    int formatSupport = isFormatSupported ? C.FORMAT_HANDLED : C.FORMAT_EXCEEDS_CAPABILITIES;
-    return RendererCapabilities.create(formatSupport, adaptiveSupport, tunnelingSupport);
+    @HardwareAccelerationSupport
+    int hardwareAccelerationSupport =
+        decoderInfo.hardwareAccelerated
+            ? HARDWARE_ACCELERATION_SUPPORTED
+            : HARDWARE_ACCELERATION_NOT_SUPPORTED;
+    @DecoderSupport
+    int decoderSupport = isPreferredDecoder ? DECODER_SUPPORT_PRIMARY : DECODER_SUPPORT_FALLBACK;
+    return RendererCapabilities.create(
+        formatSupport,
+        adaptiveSupport,
+        tunnelingSupport,
+        hardwareAccelerationSupport,
+        decoderSupport);
   }
 
   @Override

library/core/src/main/java/com/google/android/exoplayer2/trackselection/MappingTrackSelector.java

@@ -217,6 +217,19 @@ public abstract class MappingTrackSelector extends TrackSelector {
     }
 
     /**
+     * Returns the {@link Capabilities} of the renderer for an individual track.
+     *
+     * @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 Capabilities}.
+     */
+    @Capabilities
+    public int getCapabilities(int rendererIndex, int groupIndex, int trackIndex) {
+      return rendererFormatSupports[rendererIndex][groupIndex][trackIndex];
+    }
+
+    /**
      * Returns the extent to which an individual track is supported by the renderer.
      *
      * @param rendererIndex The renderer index.
@@ -227,7 +240,7 @@ public abstract class MappingTrackSelector extends TrackSelector {
     @FormatSupport
     public int getTrackSupport(int rendererIndex, int groupIndex, int trackIndex) {
       return RendererCapabilities.getFormatSupport(
-          rendererFormatSupports[rendererIndex][groupIndex][trackIndex]);
+          getCapabilities(rendererIndex, groupIndex, trackIndex));
     }
 
     /**

library/core/src/main/java/com/google/android/exoplayer2/util/EventLogger.java

@@ -15,6 +15,12 @@
  */
 package com.google.android.exoplayer2.util;
 
+import static com.google.android.exoplayer2.RendererCapabilities.DECODER_SUPPORT_FALLBACK;
+import static com.google.android.exoplayer2.RendererCapabilities.HARDWARE_ACCELERATION_SUPPORTED;
+import static com.google.android.exoplayer2.RendererCapabilities.getDecoderSupport;
+import static com.google.android.exoplayer2.RendererCapabilities.getFormatSupport;
+import static com.google.android.exoplayer2.RendererCapabilities.getHardwareAccelerationSupport;
+import static com.google.android.exoplayer2.util.Util.getFormatSupportString;
 import static java.lang.Math.min;
 
 import android.os.SystemClock;
@@ -29,6 +35,7 @@ import com.google.android.exoplayer2.Player;
 import com.google.android.exoplayer2.Player.PlaybackSuppressionReason;
 import com.google.android.exoplayer2.RendererCapabilities;
 import com.google.android.exoplayer2.RendererCapabilities.AdaptiveSupport;
+import com.google.android.exoplayer2.RendererCapabilities.Capabilities;
 import com.google.android.exoplayer2.Timeline;
 import com.google.android.exoplayer2.analytics.AnalyticsListener;
 import com.google.android.exoplayer2.audio.AudioAttributes;
@@ -276,9 +283,16 @@ public class EventLogger implements AnalyticsListener {
           logd("    Group:" + trackGroup.id + ", adaptive_supported=" + adaptiveSupport + " [");
           for (int trackIndex = 0; trackIndex < trackGroup.length; trackIndex++) {
             String status = getTrackStatusString(trackSelection, trackGroup, trackIndex);
-            String formatSupport =
-                Util.getFormatSupportString(
-                    mappedTrackInfo.getTrackSupport(rendererIndex, groupIndex, trackIndex));
+            @Capabilities
+            int capabilities =
+                mappedTrackInfo.getCapabilities(rendererIndex, groupIndex, trackIndex);
+            String formatSupport = getFormatSupportString(getFormatSupport(capabilities));
+            String hardwareAccelerationSupport =
+                getHardwareAccelerationSupport(capabilities) == HARDWARE_ACCELERATION_SUPPORTED
+                    ? ", accelerated=YES"
+                    : "";
+            String decoderSupport =
+                getDecoderSupport(capabilities) == DECODER_SUPPORT_FALLBACK ? ", fallback=YES" : "";
             logd(
                 "      "
                     + status
@@ -287,7 +301,9 @@ public class EventLogger implements AnalyticsListener {
                     + ", "
                     + Format.toLogString(trackGroup.getFormat(trackIndex))
                     + ", supported="
-                    + formatSupport);
+                    + formatSupport
+                    + hardwareAccelerationSupport
+                    + decoderSupport);
           }
           logd("    ]");
         }
@@ -315,7 +331,7 @@ public class EventLogger implements AnalyticsListener {
         TrackGroup trackGroup = unassociatedTrackGroups.get(groupIndex);
         for (int trackIndex = 0; trackIndex < trackGroup.length; trackIndex++) {
           String status = getTrackStatusString(false);
-          String formatSupport = Util.getFormatSupportString(C.FORMAT_UNSUPPORTED_TYPE);
+          String formatSupport = getFormatSupportString(C.FORMAT_UNSUPPORTED_TYPE);
           logd(
               "      "
                   + status

library/core/src/main/java/com/google/android/exoplayer2/video/MediaCodecVideoRenderer.java

@@ -374,6 +374,7 @@ public class MediaCodecVideoRenderer extends MediaCodecRenderer {
     // format's MIME type, according to the MediaCodecSelector.
     MediaCodecInfo decoderInfo = decoderInfos.get(0);
     boolean isFormatSupported = decoderInfo.isFormatSupported(format);
+    boolean isPreferredDecoder = true;
     if (!isFormatSupported) {
       // Check whether any of the other decoders support the format.
       for (int i = 1; i < decoderInfos.size(); i++) {
@@ -381,15 +382,26 @@ public class MediaCodecVideoRenderer extends MediaCodecRenderer {
         if (otherDecoderInfo.isFormatSupported(format)) {
           decoderInfo = otherDecoderInfo;
           isFormatSupported = true;
+          isPreferredDecoder = false;
           break;
         }
       }
     }
+    @C.FormatSupport
+    int formatSupport = isFormatSupported ? C.FORMAT_HANDLED : C.FORMAT_EXCEEDS_CAPABILITIES;
     @AdaptiveSupport
     int adaptiveSupport =
         decoderInfo.isSeamlessAdaptationSupported(format)
             ? ADAPTIVE_SEAMLESS
             : ADAPTIVE_NOT_SEAMLESS;
+    @HardwareAccelerationSupport
+    int hardwareAccelerationSupport =
+        decoderInfo.hardwareAccelerated
+            ? HARDWARE_ACCELERATION_SUPPORTED
+            : HARDWARE_ACCELERATION_NOT_SUPPORTED;
+    @DecoderSupport
+    int decoderSupport = isPreferredDecoder ? DECODER_SUPPORT_PRIMARY : DECODER_SUPPORT_FALLBACK;
+
     @TunnelingSupport int tunnelingSupport = TUNNELING_NOT_SUPPORTED;
     if (isFormatSupported) {
       List<MediaCodecInfo> tunnelingDecoderInfos =
@@ -408,9 +420,13 @@ public class MediaCodecVideoRenderer extends MediaCodecRenderer {
         }
       }
     }
-    @C.FormatSupport
-    int formatSupport = isFormatSupported ? C.FORMAT_HANDLED : C.FORMAT_EXCEEDS_CAPABILITIES;
-    return RendererCapabilities.create(formatSupport, adaptiveSupport, tunnelingSupport);
+
+    return RendererCapabilities.create(
+        formatSupport,
+        adaptiveSupport,
+        tunnelingSupport,
+        hardwareAccelerationSupport,
+        decoderSupport);
   }
 
   @Override

library/core/src/test/java/com/google/android/exoplayer2/audio/DecoderAudioRendererTest.java

@@ -17,6 +17,7 @@ package com.google.android.exoplayer2.audio;
 
 import static com.google.android.exoplayer2.C.FORMAT_HANDLED;
 import static com.google.android.exoplayer2.RendererCapabilities.ADAPTIVE_NOT_SEAMLESS;
+import static com.google.android.exoplayer2.RendererCapabilities.DECODER_SUPPORT_PRIMARY;
 import static com.google.android.exoplayer2.RendererCapabilities.TUNNELING_NOT_SUPPORTED;
 import static com.google.android.exoplayer2.RendererCapabilities.TUNNELING_SUPPORTED;
 import static com.google.android.exoplayer2.testutil.FakeSampleStream.FakeSampleStreamItem.END_OF_STREAM_ITEM;
@@ -92,7 +93,11 @@ public class DecoderAudioRendererTest {
   @Test
   public void supportsFormatAtApi19() {
     assertThat(audioRenderer.supportsFormat(FORMAT))
-        .isEqualTo(ADAPTIVE_NOT_SEAMLESS | TUNNELING_NOT_SUPPORTED | FORMAT_HANDLED);
+        .isEqualTo(
+            ADAPTIVE_NOT_SEAMLESS
+                | TUNNELING_NOT_SUPPORTED
+                | FORMAT_HANDLED
+                | DECODER_SUPPORT_PRIMARY);
   }
 
   @Config(sdk = 21)
@@ -100,7 +105,8 @@ public class DecoderAudioRendererTest {
   public void supportsFormatAtApi21() {
     // From API 21, tunneling is supported.
     assertThat(audioRenderer.supportsFormat(FORMAT))
-        .isEqualTo(ADAPTIVE_NOT_SEAMLESS | TUNNELING_SUPPORTED | FORMAT_HANDLED);
+        .isEqualTo(
+            ADAPTIVE_NOT_SEAMLESS | TUNNELING_SUPPORTED | FORMAT_HANDLED | DECODER_SUPPORT_PRIMARY);
   }
 
   @Test