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Add CanIgnoreReturnValue to AudioProcessor#configure + implementations

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Although it can be useful to check the output format, it's not required or needed.

For some AudioProcessor implementations, it is stated/obvious that
the output format will match the input, in which case there is no
a need to check the return value.

#cleanup

PiperOrigin-RevId: 483403679
This commit is contained in:
samrobinson 2022-10-24 16:27:18 +00:00 committed by microkatz
parent e2a77f7be9
commit 8723e74b1f
8 changed files with 17 additions and 0 deletions
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2
libraries/exoplayer/src/main/java/androidx/media3/exoplayer/audio/AudioProcessor.java
View File

@ -19,6 +19,7 @@ import androidx.media3.common.C;
import androidx.media3.common.Format;
import androidx.media3.common.util.UnstableApi;
import androidx.media3.common.util.Util;
import com.google.errorprone.annotations.CanIgnoreReturnValue;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
@ -98,6 +99,7 @@ public interface AudioProcessor {
* @return The configured output audio format if this instance is {@link #isActive() active}.
* @throws UnhandledAudioFormatException Thrown if the specified format can't be handled as input.
*/
@CanIgnoreReturnValue
AudioFormat configure(AudioFormat inputAudioFormat) throws UnhandledAudioFormatException;
/** Returns whether the processor is configured and will process input buffers. */

3
libraries/exoplayer/src/main/java/androidx/media3/exoplayer/audio/BaseAudioProcessor.java
View File

@ -17,6 +17,7 @@ package androidx.media3.exoplayer.audio;
import androidx.annotation.CallSuper;
import androidx.media3.common.util.UnstableApi;
import com.google.errorprone.annotations.CanIgnoreReturnValue;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
@ -49,6 +50,7 @@ public abstract class BaseAudioProcessor implements AudioProcessor {
}
@Override
@CanIgnoreReturnValue
public final AudioFormat configure(AudioFormat inputAudioFormat)
throws UnhandledAudioFormatException {
pendingInputAudioFormat = inputAudioFormat;
@ -123,6 +125,7 @@ public abstract class BaseAudioProcessor implements AudioProcessor {
}
/** Called when the processor is configured for a new input format. */
@CanIgnoreReturnValue
protected AudioFormat onConfigure(AudioFormat inputAudioFormat)
throws UnhandledAudioFormatException {
return AudioFormat.NOT_SET;

2
libraries/exoplayer/src/main/java/androidx/media3/exoplayer/audio/ChannelMappingAudioProcessor.java
View File

@ -19,6 +19,7 @@ import androidx.annotation.Nullable;
import androidx.media3.common.C;
import androidx.media3.common.Format;
import androidx.media3.common.util.Assertions;
import com.google.errorprone.annotations.CanIgnoreReturnValue;
import java.nio.ByteBuffer;
/**
@ -44,6 +45,7 @@ import java.nio.ByteBuffer;
}
@Override
@CanIgnoreReturnValue
public AudioFormat onConfigure(AudioFormat inputAudioFormat)
throws UnhandledAudioFormatException {
@Nullable int[] outputChannels = pendingOutputChannels;

2
libraries/exoplayer/src/main/java/androidx/media3/exoplayer/audio/FloatResamplingAudioProcessor.java
View File

@ -18,6 +18,7 @@ package androidx.media3.exoplayer.audio;
import androidx.media3.common.C;
import androidx.media3.common.Format;
import androidx.media3.common.util.Util;
import com.google.errorprone.annotations.CanIgnoreReturnValue;
import java.nio.ByteBuffer;
/**
@ -36,6 +37,7 @@ import java.nio.ByteBuffer;
private static final double PCM_32_BIT_INT_TO_PCM_32_BIT_FLOAT_FACTOR = 1.0 / 0x7FFFFFFF;
@Override
@CanIgnoreReturnValue
public AudioFormat onConfigure(AudioFormat inputAudioFormat)
throws UnhandledAudioFormatException {
@C.PcmEncoding int encoding = inputAudioFormat.encoding;

2
libraries/exoplayer/src/main/java/androidx/media3/exoplayer/audio/ResamplingAudioProcessor.java
View File

@ -18,6 +18,7 @@ package androidx.media3.exoplayer.audio;
import androidx.media3.common.C;
import androidx.media3.common.Format;
import androidx.media3.common.util.Util;
import com.google.errorprone.annotations.CanIgnoreReturnValue;
import java.nio.ByteBuffer;
/**
@ -36,6 +37,7 @@ import java.nio.ByteBuffer;
/* package */ final class ResamplingAudioProcessor extends BaseAudioProcessor {
@Override
@CanIgnoreReturnValue
public AudioFormat onConfigure(AudioFormat inputAudioFormat)
throws UnhandledAudioFormatException {
@C.PcmEncoding int encoding = inputAudioFormat.encoding;

2
libraries/exoplayer/src/main/java/androidx/media3/exoplayer/audio/SilenceSkippingAudioProcessor.java
View File

@ -23,6 +23,7 @@ import androidx.media3.common.C;
import androidx.media3.common.util.Assertions;
import androidx.media3.common.util.UnstableApi;
import androidx.media3.common.util.Util;
import com.google.errorprone.annotations.CanIgnoreReturnValue;
import java.lang.annotation.Documented;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
@ -145,6 +146,7 @@ public final class SilenceSkippingAudioProcessor extends BaseAudioProcessor {
// AudioProcessor implementation.
@Override
@CanIgnoreReturnValue
public AudioFormat onConfigure(AudioFormat inputAudioFormat)
throws UnhandledAudioFormatException {
if (inputAudioFormat.encoding != C.ENCODING_PCM_16BIT) {

2
libraries/exoplayer/src/main/java/androidx/media3/exoplayer/audio/SonicAudioProcessor.java
View File

@ -22,6 +22,7 @@ import androidx.media3.common.C;
import androidx.media3.common.Format;
import androidx.media3.common.util.UnstableApi;
import androidx.media3.common.util.Util;
import com.google.errorprone.annotations.CanIgnoreReturnValue;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.nio.ShortBuffer;
@ -142,6 +143,7 @@ public final class SonicAudioProcessor implements AudioProcessor {
}
@Override
@CanIgnoreReturnValue
public AudioFormat configure(AudioFormat inputAudioFormat) throws UnhandledAudioFormatException {
if (inputAudioFormat.encoding != C.ENCODING_PCM_16BIT) {
throw new UnhandledAudioFormatException(inputAudioFormat);

2
libraries/transformer/src/main/java/androidx/media3/transformer/SpeedChangingAudioProcessor.java
View File

@ -23,6 +23,7 @@ import androidx.media3.common.util.Util;
import androidx.media3.exoplayer.audio.AudioProcessor;
import androidx.media3.exoplayer.audio.BaseAudioProcessor;
import androidx.media3.exoplayer.audio.SonicAudioProcessor;
import com.google.errorprone.annotations.CanIgnoreReturnValue;
import java.nio.ByteBuffer;
/**
@ -52,6 +53,7 @@ import java.nio.ByteBuffer;
}
@Override
@CanIgnoreReturnValue
public AudioFormat onConfigure(AudioFormat inputAudioFormat)
throws UnhandledAudioFormatException {
return sonicAudioProcessor.configure(inputAudioFormat);