Remove unnecessary RequiresApi annotation

demos/main/src/main/java/androidx/media3/demo/main/DownloadTracker.java

@@ -25,7 +25,6 @@ import android.os.Looper;
 import android.widget.Toast;
 import androidx.annotation.Nullable;
 import androidx.annotation.OptIn;
-import androidx.annotation.RequiresApi;
 import androidx.fragment.app.FragmentManager;
 import androidx.media3.common.C;
 import androidx.media3.common.DrmInitData;
@@ -354,7 +353,6 @@ public class DownloadTracker {
   }
 
   /** Downloads a Widevine offline license in a background thread. */
-  @RequiresApi(18)
   private static final class WidevineOfflineLicenseFetchTask {
 
     private final Format format;

libraries/common/src/main/java/androidx/media3/common/GlObjectsProvider.java

@@ -21,7 +21,6 @@ import android.opengl.EGLContext;
 import android.opengl.EGLDisplay;
 import android.opengl.EGLSurface;
 import androidx.annotation.IntRange;
-import androidx.annotation.RequiresApi;
 import androidx.media3.common.util.GlUtil.GlException;
 import androidx.media3.common.util.UnstableApi;
 
@@ -39,7 +38,6 @@ public interface GlObjectsProvider {
    * @param configAttributes The attributes to configure EGL with.
    * @throws GlException If an error occurs during creation.
    */
-  @RequiresApi(17)
   EGLContext createEglContext(
       EGLDisplay eglDisplay, @IntRange(from = 2, to = 3) int openGlVersion, int[] configAttributes)
       throws GlException;
@@ -54,7 +52,6 @@ public interface GlObjectsProvider {
    * @param isEncoderInputSurface Whether the {@code surface} is the input surface of an encoder.
    * @throws GlException If an error occurs during creation.
    */
-  @RequiresApi(17)
   EGLSurface createEglSurface(
       EGLDisplay eglDisplay,
       Object surface,
@@ -72,7 +69,6 @@ public interface GlObjectsProvider {
    *     surface.
    * @throws GlException If an error occurs during creation.
    */
-  @RequiresApi(17)
   EGLSurface createFocusedPlaceholderEglSurface(EGLContext eglContext, EGLDisplay eglDisplay)
       throws GlException;
 

libraries/common/src/main/java/androidx/media3/common/TrackSelectionParameters.java

@@ -28,7 +28,6 @@ import android.os.Looper;
 import android.view.accessibility.CaptioningManager;
 import androidx.annotation.IntDef;
 import androidx.annotation.Nullable;
-import androidx.annotation.RequiresApi;
 import androidx.media3.common.util.BundleCollectionUtil;
 import androidx.media3.common.util.UnstableApi;
 import androidx.media3.common.util.Util;
@@ -830,7 +829,6 @@ public class TrackSelectionParameters implements Bundleable {
       return new TrackSelectionParameters(this);
     }
 
-    @RequiresApi(19)
     private void setPreferredTextLanguageAndRoleFlagsToCaptioningManagerSettingsV19(
         Context context) {
       if (Util.SDK_INT < 23 && Looper.myLooper() == null) {

libraries/common/src/main/java/androidx/media3/common/util/EGLSurfaceTexture.java

@@ -27,14 +27,12 @@ import android.opengl.GLES20;
 import android.os.Handler;
 import androidx.annotation.IntDef;
 import androidx.annotation.Nullable;
-import androidx.annotation.RequiresApi;
 import java.lang.annotation.Documented;
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
 import java.lang.annotation.Target;
 
 /** Generates a {@link SurfaceTexture} using EGL/GLES functions. */
-@RequiresApi(17)
 @UnstableApi
 public final class EGLSurfaceTexture implements SurfaceTexture.OnFrameAvailableListener, Runnable {
 

libraries/common/src/main/java/androidx/media3/common/util/GlUtil.java

@@ -37,7 +37,6 @@ import android.opengl.Matrix;
 import androidx.annotation.DoNotInline;
 import androidx.annotation.IntRange;
 import androidx.annotation.Nullable;
-import androidx.annotation.RequiresApi;
 import androidx.media3.common.C;
 import java.nio.ByteBuffer;
 import java.nio.ByteOrder;
@@ -227,7 +226,6 @@ public final class GlUtil {
   }
 
   /** Returns an initialized default {@link EGLDisplay}. */
-  @RequiresApi(17)
   public static EGLDisplay getDefaultEglDisplay() throws GlException {
     return Api17.getDefaultEglDisplay();
   }
@@ -240,7 +238,6 @@ public final class GlUtil {
    *
    * @param eglDisplay The {@link EGLDisplay} to create an {@link EGLContext} for.
    */
-  @RequiresApi(17)
   public static EGLContext createEglContext(EGLDisplay eglDisplay) throws GlException {
     return createEglContext(
         EGL14.EGL_NO_CONTEXT, eglDisplay, /* openGlVersion= */ 2, EGL_CONFIG_ATTRIBUTES_RGBA_8888);
@@ -256,7 +253,6 @@ public final class GlUtil {
    * @param configAttributes The attributes to configure EGL with. Accepts either {@link
    *     #EGL_CONFIG_ATTRIBUTES_RGBA_1010102}, or {@link #EGL_CONFIG_ATTRIBUTES_RGBA_8888}.
    */
-  @RequiresApi(17)
   public static EGLContext createEglContext(
       EGLContext sharedContext,
       EGLDisplay eglDisplay,
@@ -282,7 +278,6 @@ public final class GlUtil {
    *     C#COLOR_TRANSFER_SDR}, {@link C#COLOR_TRANSFER_HLG} and {@link C#COLOR_TRANSFER_ST2084}.
    * @param isEncoderInputSurface Whether the {@code surface} is the input surface of an encoder.
    */
-  @RequiresApi(17)
   public static EGLSurface createEglSurface(
       EGLDisplay eglDisplay,
       Object surface,
@@ -325,7 +320,6 @@ public final class GlUtil {
    * @param configAttributes EGL configuration attributes. Valid arguments include {@link
    *     #EGL_CONFIG_ATTRIBUTES_RGBA_8888} and {@link #EGL_CONFIG_ATTRIBUTES_RGBA_1010102}.
    */
-  @RequiresApi(17)
   private static EGLSurface createPbufferSurface(
       EGLDisplay eglDisplay, int width, int height, int[] configAttributes) throws GlException {
     int[] pbufferAttributes =
@@ -347,7 +341,6 @@ public final class GlUtil {
    * @param eglDisplay The {@link EGLDisplay} to attach the surface to.
    * @return {@link EGL14#EGL_NO_SURFACE} if supported and a 1x1 pixel buffer surface otherwise.
    */
-  @RequiresApi(17)
   public static EGLSurface createFocusedPlaceholderEglSurface(
       EGLContext eglContext, EGLDisplay eglDisplay) throws GlException {
     // EGL_CONFIG_ATTRIBUTES_RGBA_1010102 could be used for HDR input, but EGL14.EGL_NO_SURFACE
@@ -369,7 +362,6 @@ public final class GlUtil {
    * <p>Returns {@code 0} if no {@link EGLContext} {@linkplain #createFocusedPlaceholderEglSurface
    * is focused}.
    */
-  @RequiresApi(17)
   public static long getContextMajorVersion() throws GlException {
     return Api17.getContextMajorVersion();
   }
@@ -381,7 +373,6 @@ public final class GlUtil {
    * #createFocusedPlaceholderEglSurface is focused}, or the focused {@link EGLContext} version is
    * less than 3.0.
    */
-  @RequiresApi(17)
   public static long createGlSyncFence() throws GlException {
     // If the context is an OpenGL 3.0 context, we must be running API 18 or later.
     return Api17.getContextMajorVersion() >= 3 ? Api18.createSyncFence() : 0;
@@ -422,7 +413,6 @@ public final class GlUtil {
   }
 
   /** Gets the current {@link EGLContext context}. */
-  @RequiresApi(17)
   public static EGLContext getCurrentContext() {
     return Api17.getCurrentContext();
   }
@@ -498,7 +488,6 @@ public final class GlUtil {
    * Makes the specified {@code eglSurface} the render target, using a viewport of {@code width} by
    * {@code height} pixels.
    */
-  @RequiresApi(17)
   public static void focusEglSurface(
       EGLDisplay eglDisplay, EGLContext eglContext, EGLSurface eglSurface, int width, int height)
       throws GlException {
@@ -510,7 +499,6 @@ public final class GlUtil {
    * Makes the specified {@code framebuffer} the render target, using a viewport of {@code width} by
    * {@code height} pixels.
    */
-  @RequiresApi(17)
   public static void focusFramebuffer(
       EGLDisplay eglDisplay,
       EGLContext eglContext,
@@ -712,7 +700,6 @@ public final class GlUtil {
    * <p>This is a no-op if called on already-destroyed {@link EGLDisplay} and {@link EGLContext}
    * instances.
    */
-  @RequiresApi(17)
   public static void destroyEglContext(
       @Nullable EGLDisplay eglDisplay, @Nullable EGLContext eglContext) throws GlException {
     Api17.destroyEglContext(eglDisplay, eglContext);
@@ -722,7 +709,6 @@ public final class GlUtil {
    * Destroys the {@link EGLSurface} identified by the provided {@link EGLDisplay} and {@link
    * EGLSurface}.
    */
-  @RequiresApi(17)
   public static void destroyEglSurface(
       @Nullable EGLDisplay eglDisplay, @Nullable EGLSurface eglSurface) throws GlException {
     Api17.destroyEglSurface(eglDisplay, eglSurface);
@@ -751,7 +737,6 @@ public final class GlUtil {
     }
   }
 
-  @RequiresApi(17)
   private static final class Api17 {
     private Api17() {}
 
@@ -921,7 +906,6 @@ public final class GlUtil {
     }
   }
 
-  @RequiresApi(18)
   private static final class Api18 {
     private Api18() {}
 

libraries/common/src/main/java/androidx/media3/common/util/TraceUtil.java

@@ -15,7 +15,6 @@
  */
 package androidx.media3.common.util;
 
-import androidx.annotation.RequiresApi;
 import androidx.media3.common.MediaLibraryInfo;
 
 /** Calls through to {@link android.os.Trace} methods on supported API levels. */
@@ -33,7 +32,7 @@ public final class TraceUtil {
    */
   public static void beginSection(String sectionName) {
     if (MediaLibraryInfo.TRACE_ENABLED) {
-      beginSectionV18(sectionName);
+      android.os.Trace.beginSection(sectionName);
     }
   }
 
@@ -44,17 +43,7 @@ public final class TraceUtil {
    */
   public static void endSection() {
     if (MediaLibraryInfo.TRACE_ENABLED) {
-      endSectionV18();
+      android.os.Trace.endSection();
     }
   }
-
-  @RequiresApi(18)
-  private static void beginSectionV18(String sectionName) {
-    android.os.Trace.beginSection(sectionName);
-  }
-
-  @RequiresApi(18)
-  private static void endSectionV18() {
-    android.os.Trace.endSection();
-  }
 }

libraries/common/src/main/java/androidx/media3/common/util/Util.java

@@ -1560,7 +1560,6 @@ public final class Util {
    * @throws NoSuchElementException If the array is empty.
    */
   @UnstableApi
-  @RequiresApi(18)
   public static long minValue(SparseLongArray sparseLongArray) {
     if (sparseLongArray.size() == 0) {
       throw new NoSuchElementException();
@@ -1580,7 +1579,6 @@ public final class Util {
    * @throws NoSuchElementException If the array is empty.
    */
   @UnstableApi
-  @RequiresApi(18)
   public static long maxValue(SparseLongArray sparseLongArray) {
     if (sparseLongArray.size() == 0) {
       throw new NoSuchElementException();
@@ -3698,7 +3696,6 @@ public final class Util {
     outSize.y = mode.getPhysicalHeight();
   }
 
-  @RequiresApi(17)
   private static void getDisplaySizeV17(Display display, Point outSize) {
     display.getRealSize(outSize);
   }

libraries/exoplayer/src/main/java/androidx/media3/exoplayer/ExoPlayer.java

@@ -1586,7 +1586,6 @@ public interface ExoPlayer extends Player {
    *
    * @param videoEffects The {@link List} of {@linkplain Effect video effects} to apply.
    */
-  @RequiresApi(18)
   @UnstableApi
   void setVideoEffects(List<Effect> videoEffects);
 

libraries/exoplayer/src/main/java/androidx/media3/exoplayer/audio/AudioTimestampPoller.java

@@ -22,7 +22,6 @@ import android.media.AudioTimestamp;
 import android.media.AudioTrack;
 import androidx.annotation.IntDef;
 import androidx.annotation.Nullable;
-import androidx.annotation.RequiresApi;
 import androidx.media3.common.C;
 import java.lang.annotation.Documented;
 import java.lang.annotation.Retention;
@@ -266,7 +265,6 @@ import java.lang.annotation.Target;
     }
   }
 
-  @RequiresApi(19)
   private static final class AudioTimestampV19 {
 
     private final AudioTrack audioTrack;

libraries/exoplayer/src/main/java/androidx/media3/exoplayer/drm/DefaultDrmSession.java

@@ -29,7 +29,6 @@ import android.os.SystemClock;
 import android.util.Pair;
 import androidx.annotation.GuardedBy;
 import androidx.annotation.Nullable;
-import androidx.annotation.RequiresApi;
 import androidx.media3.common.C;
 import androidx.media3.common.DrmInitData.SchemeData;
 import androidx.media3.common.util.Assertions;
@@ -57,7 +56,6 @@ import org.checkerframework.checker.nullness.qual.MonotonicNonNull;
 import org.checkerframework.checker.nullness.qual.RequiresNonNull;
 
 /** A {@link DrmSession} that supports playbacks using {@link ExoMediaDrm}. */
-@RequiresApi(18)
 /* package */ class DefaultDrmSession implements DrmSession {
 
   /** Thrown when an unexpected exception or error is thrown during provisioning or key requests. */

libraries/exoplayer/src/main/java/androidx/media3/exoplayer/drm/DefaultDrmSessionManager.java

@@ -29,7 +29,6 @@ import android.os.Message;
 import android.os.SystemClock;
 import androidx.annotation.IntDef;
 import androidx.annotation.Nullable;
-import androidx.annotation.RequiresApi;
 import androidx.media3.common.C;
 import androidx.media3.common.DrmInitData;
 import androidx.media3.common.DrmInitData.SchemeData;
@@ -68,7 +67,6 @@ import org.checkerframework.checker.nullness.qual.MonotonicNonNull;
  * <p>This implementation supports pre-acquisition of sessions using {@link
  * #preacquireSession(DrmSessionEventListener.EventDispatcher, Format)}.
  */
-@RequiresApi(18)
 @UnstableApi
 public class DefaultDrmSessionManager implements DrmSessionManager {
 

libraries/exoplayer/src/main/java/androidx/media3/exoplayer/drm/DefaultDrmSessionManagerProvider.java

@@ -20,7 +20,6 @@ import static androidx.media3.exoplayer.drm.DefaultDrmSessionManager.MODE_PLAYBA
 
 import androidx.annotation.GuardedBy;
 import androidx.annotation.Nullable;
-import androidx.annotation.RequiresApi;
 import androidx.media3.common.MediaItem;
 import androidx.media3.common.util.UnstableApi;
 import androidx.media3.common.util.Util;
@@ -88,7 +87,6 @@ public final class DefaultDrmSessionManagerProvider implements DrmSessionManager
     }
   }
 
-  @RequiresApi(18)
   private DrmSessionManager createManager(MediaItem.DrmConfiguration drmConfiguration) {
     DataSource.Factory dataSourceFactory =
         drmHttpDataSourceFactory != null

libraries/exoplayer/src/main/java/androidx/media3/exoplayer/drm/DrmUtil.java

@@ -106,7 +106,6 @@ public final class DrmUtil {
 
   // Internal classes.
 
-  @RequiresApi(18)
   private static final class Api18 {
 
     @DoNotInline

libraries/exoplayer/src/main/java/androidx/media3/exoplayer/drm/DummyExoMediaDrm.java

@@ -18,7 +18,6 @@ package androidx.media3.exoplayer.drm;
 import android.media.MediaDrmException;
 import android.os.PersistableBundle;
 import androidx.annotation.Nullable;
-import androidx.annotation.RequiresApi;
 import androidx.media3.common.C;
 import androidx.media3.common.DrmInitData;
 import androidx.media3.common.util.UnstableApi;
@@ -29,7 +28,6 @@ import java.util.List;
 import java.util.Map;
 
 /** An {@link ExoMediaDrm} that does not support any protection schemes. */
-@RequiresApi(18)
 @UnstableApi
 public final class DummyExoMediaDrm implements ExoMediaDrm {
 

libraries/exoplayer/src/main/java/androidx/media3/exoplayer/drm/FrameworkMediaDrm.java

@@ -52,7 +52,6 @@ import java.util.Map;
 import java.util.UUID;
 
 /** An {@link ExoMediaDrm} implementation that wraps the framework {@link MediaDrm}. */
-@RequiresApi(18)
 public final class FrameworkMediaDrm implements ExoMediaDrm {
 
   private static final String TAG = "FrameworkMediaDrm";

libraries/exoplayer/src/main/java/androidx/media3/exoplayer/drm/OfflineLicenseHelper.java

@@ -22,7 +22,6 @@ import android.os.HandlerThread;
 import android.os.Looper;
 import android.util.Pair;
 import androidx.annotation.Nullable;
-import androidx.annotation.RequiresApi;
 import androidx.media3.common.DrmInitData;
 import androidx.media3.common.Format;
 import androidx.media3.common.util.Assertions;
@@ -38,7 +37,6 @@ import java.util.Map;
 import java.util.concurrent.ExecutionException;
 
 /** Helper class to download, renew and release offline licenses. */
-@RequiresApi(18)
 @UnstableApi
 public final class OfflineLicenseHelper {
 

libraries/exoplayer/src/main/java/androidx/media3/exoplayer/mediacodec/MediaCodecAdapter.java

@@ -250,7 +250,6 @@ public interface MediaCodecAdapter {
    *
    * @see MediaCodec#setParameters(Bundle)
    */
-  @RequiresApi(19)
   void setParameters(Bundle params);
 
   /**

libraries/exoplayer/src/main/java/androidx/media3/exoplayer/mediacodec/MediaCodecBufferEnqueuer.java

@@ -17,7 +17,6 @@ package androidx.media3.exoplayer.mediacodec;
 
 import android.media.MediaCodec;
 import android.os.Bundle;
-import androidx.annotation.RequiresApi;
 import androidx.media3.decoder.CryptoInfo;
 
 /**
@@ -57,7 +56,6 @@ import androidx.media3.decoder.CryptoInfo;
    *
    * @see MediaCodec#setParameters(Bundle)
    */
-  @RequiresApi(19)
   void setParameters(Bundle parameters);
 
   /** Flushes the instance. */

libraries/exoplayer/src/main/java/androidx/media3/exoplayer/mediacodec/MediaCodecInfo.java

@@ -698,7 +698,6 @@ public final class MediaCodecInfo {
     return isAdaptiveV19(capabilities);
   }
 
-  @RequiresApi(19)
   private static boolean isAdaptiveV19(CodecCapabilities capabilities) {
     return capabilities.isFeatureSupported(CodecCapabilities.FEATURE_AdaptivePlayback);
   }

libraries/exoplayer/src/main/java/androidx/media3/exoplayer/mediacodec/SynchronousMediaCodecAdapter.java

@@ -192,7 +192,6 @@ public final class SynchronousMediaCodecAdapter implements MediaCodecAdapter {
   }
 
   @Override
-  @RequiresApi(19)
   public void setParameters(Bundle params) {
     codec.setParameters(params);
   }

libraries/exoplayer/src/main/java/androidx/media3/exoplayer/video/MediaCodecVideoRenderer.java

@@ -1682,7 +1682,6 @@ public class MediaCodecVideoRenderer extends MediaCodecRenderer
         && (!codecInfo.secure || PlaceholderSurface.isSecureSupported(context));
   }
 
-  @RequiresApi(17)
   private void releasePlaceholderSurface() {
     if (displaySurface == placeholderSurface) {
       displaySurface = null;

libraries/exoplayer/src/main/java/androidx/media3/exoplayer/video/PlaceholderSurface.java

@@ -26,7 +26,6 @@ import android.os.HandlerThread;
 import android.os.Message;
 import android.view.Surface;
 import androidx.annotation.Nullable;
-import androidx.annotation.RequiresApi;
 import androidx.media3.common.util.Assertions;
 import androidx.media3.common.util.EGLSurfaceTexture;
 import androidx.media3.common.util.EGLSurfaceTexture.SecureMode;
@@ -37,7 +36,6 @@ import androidx.media3.common.util.Util;
 import org.checkerframework.checker.nullness.qual.MonotonicNonNull;
 
 /** A placeholder {@link Surface}. */
-@RequiresApi(17)
 @UnstableApi
 public final class PlaceholderSurface extends Surface {
 

libraries/exoplayer/src/main/java/androidx/media3/exoplayer/video/VideoFrameReleaseHelper.java

@@ -499,7 +499,6 @@ public final class VideoFrameReleaseHelper {
     }
   }
 
-  @RequiresApi(17)
   private static final class DisplayHelperV17
       implements DisplayHelper, DisplayManager.DisplayListener {
 
@@ -652,7 +651,6 @@ public final class VideoFrameReleaseHelper {
     }
   }
 
-  @RequiresApi(17)
   private static final class Api17 {
 
     @DoNotInline

libraries/test_exoplayer_playback/src/androidTest/java/androidx/media3/test/exoplayer/playback/gts/DashTestRunner.java

@@ -21,7 +21,6 @@ import android.media.MediaDrm;
 import android.media.UnsupportedSchemeException;
 import android.view.Surface;
 import android.widget.FrameLayout;
-import androidx.annotation.RequiresApi;
 import androidx.annotation.Size;
 import androidx.media3.common.C;
 import androidx.media3.common.Format;
@@ -509,7 +508,6 @@ import java.util.List;
    * Creates a new {@code MediaDrm} object. The encapsulation ensures that the tests can be executed
    * for API level < 18.
    */
-  @RequiresApi(18)
   private static final class MediaDrmBuilder {
 
     public static MediaDrm build() {

libraries/test_utils/src/main/java/androidx/media3/test/utils/AdditionalFailureInfo.java

@@ -16,7 +16,6 @@
 package androidx.media3.test.utils;
 
 import androidx.annotation.Nullable;
-import androidx.annotation.RequiresApi;
 import androidx.media3.common.util.NullableType;
 import androidx.media3.common.util.UnstableApi;
 import androidx.media3.common.util.Util;
@@ -39,7 +38,6 @@ import org.junit.runners.model.Statement;
  * <p>Includes special handling for {@link AssertionError} to ensure that test failures are
  * correctly distinguished from test errors (all other errors/exceptions).
  */
-@RequiresApi(19)
 @UnstableApi
 public final class AdditionalFailureInfo implements TestRule {
 

libraries/test_utils/src/main/java/androidx/media3/test/utils/BitmapPixelTestUtil.java

@@ -145,7 +145,6 @@ public class BitmapPixelTestUtil {
    * @return A {@link Bitmap}.
    * @throws IOException If the bitmap can't be read.
    */
-  @RequiresApi(19) // BitmapFactory.Options#inPremultiplied.
   public static Bitmap readBitmapUnpremultipliedAlpha(String assetString) throws IOException {
     Bitmap bitmap;
     try (InputStream inputStream = getApplicationContext().getAssets().open(assetString)) {
@@ -161,7 +160,6 @@ public class BitmapPixelTestUtil {
    * Returns a bitmap with the same information as the provided alpha/red/green/blue 8-bits per
    * component image.
    */
-  @RequiresApi(19)
   public static Bitmap createArgb8888BitmapFromRgba8888Image(Image image) {
     int width = image.getWidth();
     int height = image.getHeight();
@@ -186,7 +184,6 @@ public class BitmapPixelTestUtil {
   /**
    * Returns a grayscale bitmap from the Luma channel in the {@link ImageFormat#YUV_420_888} image.
    */
-  @RequiresApi(19)
   public static Bitmap createGrayscaleArgb8888BitmapFromYuv420888Image(Image image) {
     int width = image.getWidth();
     int height = image.getHeight();
@@ -423,7 +420,6 @@ public class BitmapPixelTestUtil {
   //  createUnpremultipliedArgb8888BitmapFromFocusedGlFramebuffer back to
   //  createArgb8888BitmapFromFocusedGlFramebuffer. Also, apply
   //  setPremultiplied(false) to createBitmapFromFocusedGlFrameBuffer.
-  @RequiresApi(17) // #flipBitmapVertically.
   public static Bitmap createArgb8888BitmapFromFocusedGlFramebuffer(int width, int height)
       throws GlUtil.GlException {
     return createBitmapFromFocusedGlFrameBuffer(
@@ -440,7 +436,6 @@ public class BitmapPixelTestUtil {
    * @param height The height of the pixel rectangle to read.
    * @return A {@link Bitmap} with the framebuffer's values.
    */
-  @RequiresApi(19) // Bitmap#setPremultiplied.
   public static Bitmap createUnpremultipliedArgb8888BitmapFromFocusedGlFramebuffer(
       int width, int height) throws GlUtil.GlException {
     Bitmap bitmap =
@@ -471,7 +466,6 @@ public class BitmapPixelTestUtil {
         width, height, /* pixelSize= */ 8, GLES30.GL_HALF_FLOAT, Bitmap.Config.RGBA_F16);
   }
 
-  @RequiresApi(17) // #flipBitmapVertically.
   private static Bitmap createBitmapFromFocusedGlFrameBuffer(
       int width, int height, int pixelSize, int glReadPixelsFormat, Bitmap.Config bitmapConfig)
       throws GlUtil.GlException {
@@ -494,14 +488,12 @@ public class BitmapPixelTestUtil {
    * @param bitmap A {@link Bitmap}.
    * @return The identifier of the newly created texture.
    */
-  @RequiresApi(17) // #flipBitmapVertically.
   public static int createGlTextureFromBitmap(Bitmap bitmap) throws GlUtil.GlException {
     // Put the flipped bitmap in the OpenGL texture as the bitmap's positive y-axis points down
     // while OpenGL's positive y-axis points up.
     return GlUtil.createTexture(flipBitmapVertically(bitmap));
   }
 
-  @RequiresApi(17) // Bitmap#isPremultiplied.
   public static Bitmap flipBitmapVertically(Bitmap bitmap) {
     boolean wasPremultiplied = bitmap.isPremultiplied();
     if (!wasPremultiplied) {

libraries/test_utils/src/main/java/androidx/media3/test/utils/CapturingRenderersFactory.java

@@ -174,7 +174,6 @@ public class CapturingRenderersFactory implements RenderersFactory, Dumper.Dumpa
         constructedAdapters = new ArrayList<>();
       }
 
-      @RequiresApi(18)
       @Override
       public MediaCodecAdapter createAdapter(Configuration configuration) throws IOException {
         CapturingMediaCodecAdapter adapter =
@@ -343,7 +342,6 @@ public class CapturingRenderersFactory implements RenderersFactory, Dumper.Dumpa
       delegate.setOutputSurface(surface);
     }
 
-    @RequiresApi(19)
     @Override
     public void setParameters(Bundle params) {
       delegate.setParameters(params);

libraries/test_utils/src/main/java/androidx/media3/test/utils/DataSourceContractTest.java

@@ -31,7 +31,6 @@ import static org.mockito.Mockito.verifyNoMoreInteractions;
 
 import android.net.Uri;
 import androidx.annotation.Nullable;
-import androidx.annotation.RequiresApi;
 import androidx.media3.common.C;
 import androidx.media3.common.util.Assertions;
 import androidx.media3.common.util.UnstableApi;
@@ -68,7 +67,6 @@ import org.mockito.Mockito;
  * not required) to also annotate this {@link Ignore @Ignore} so that JUnit correctly reports the
  * test as skipped/ignored instead of passing.
  */
-@RequiresApi(19)
 @UnstableApi
 public abstract class DataSourceContractTest {
 

libraries/test_utils/src/main/java/androidx/media3/test/utils/HttpDataSourceTestEnv.java

@@ -19,7 +19,6 @@ package androidx.media3.test.utils;
 import static androidx.media3.test.utils.WebServerDispatcher.getRequestPath;
 
 import android.net.Uri;
-import androidx.annotation.RequiresApi;
 import androidx.media3.common.util.UnstableApi;
 import androidx.media3.datasource.HttpDataSource;
 import com.google.common.collect.ImmutableList;
@@ -32,7 +31,6 @@ import org.junit.Rule;
 import org.junit.rules.ExternalResource;
 
 /** A JUnit {@link Rule} that creates test resources for {@link HttpDataSource} contract tests. */
-@RequiresApi(19)
 @UnstableApi
 public class HttpDataSourceTestEnv extends ExternalResource {
   private static int seed = 0;

libraries/test_utils/src/main/java/androidx/media3/test/utils/TextureBitmapReader.java

@@ -23,7 +23,6 @@ import android.graphics.Bitmap;
 import android.os.Build;
 import android.view.Surface;
 import androidx.annotation.Nullable;
-import androidx.annotation.RequiresApi;
 import androidx.media3.common.GlTextureInfo;
 import androidx.media3.common.VideoFrameProcessingException;
 import androidx.media3.common.util.GlUtil;
@@ -93,7 +92,6 @@ public final class TextureBitmapReader implements VideoFrameProcessorTestRunner.
   //  createArgb8888BitmapFromFocusedGlFramebuffer, so that TextureBitmapReader always reads bitmaps
   //  as unpremultiplied alpha. Then, remove this method (as we'll already be using premultiplied
   //  alpha).
-  @RequiresApi(17) // BitmapPixelTestUtil#createArgb8888BitmapFromFocusedGlFramebuffer.
   public void readBitmap(GlTextureInfo outputTexture, long presentationTimeUs)
       throws VideoFrameProcessingException {
     try {
@@ -114,7 +112,6 @@ public final class TextureBitmapReader implements VideoFrameProcessorTestRunner.
    * <p>The read result can be fetched by calling {@link #getBitmapAtPresentationTimeUs} or {@link
    * #getBitmap}.
    */
-  @RequiresApi(19) // BitmapPixelTestUtil#createArgb8888BitmapFromFocusedGlFramebuffer.
   public void readBitmapUnpremultipliedAlpha(GlTextureInfo outputTexture, long presentationTimeUs)
       throws VideoFrameProcessingException {
     checkState(!useHighPrecisionColorComponents);
@@ -130,7 +127,6 @@ public final class TextureBitmapReader implements VideoFrameProcessorTestRunner.
     }
   }
 
-  @RequiresApi(17) // BitmapPixelTestUtil#createArgb8888BitmapFromFocusedGlFramebuffer.
   private static Bitmap createBitmapFromCurrentGlFrameBuffer(
       int width, int height, boolean useHighPrecisionColorComponents) throws GlUtil.GlException {
     if (!useHighPrecisionColorComponents) {

libraries/test_utils/src/main/java/androidx/media3/test/utils/VideoFrameProcessorTestRunner.java

@@ -35,7 +35,6 @@ import android.media.MediaFormat;
 import android.util.Pair;
 import android.view.Surface;
 import androidx.annotation.Nullable;
-import androidx.annotation.RequiresApi;
 import androidx.media3.common.ColorInfo;
 import androidx.media3.common.DebugViewProvider;
 import androidx.media3.common.Effect;
@@ -61,7 +60,6 @@ import org.checkerframework.checker.nullness.qual.MonotonicNonNull;
 
 /** A test runner for {@link VideoFrameProcessor} tests. */
 @UnstableApi
-@RequiresApi(19)
 public final class VideoFrameProcessorTestRunner {
 
   /** A builder for {@link VideoFrameProcessorTestRunner} instances. */

libraries/ui/src/main/java/androidx/media3/ui/CaptionStyleCompat.java

@@ -114,7 +114,6 @@ public final class CaptionStyleCompat {
    * @param captionStyle A {@link CaptionStyle}.
    * @return The equivalent {@link CaptionStyleCompat}.
    */
-  @RequiresApi(19)
   public static CaptionStyleCompat createFromCaptionStyle(
       CaptioningManager.CaptionStyle captionStyle) {
     if (Util.SDK_INT >= 21) {
@@ -149,7 +148,6 @@ public final class CaptionStyleCompat {
     this.typeface = typeface;
   }
 
-  @RequiresApi(19)
   @SuppressWarnings("ResourceType")
   private static CaptionStyleCompat createFromCaptionStyleV19(
       CaptioningManager.CaptionStyle captionStyle) {