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Commit 081700f7 by hschlueter Committed by Ian Baker
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Communicate sample MIME type changes to FallbackListener. 

We may fall back to a different sample MIME type because
a) the sample MIME type inferred from the input is not supported
by the muxer or b) no encoders are available for the the requested
sample MIME type.

PiperOrigin-RevId: 422849036
parent 4502a1ee
Inline Side-by-side
Showing with 82 additions and 23 deletions
library/transformer/src/main/java/com/google/android/exoplayer2/transformer/AudioSamplePipeline.java
...@@ -29,7 +29,9 @@ import com.google.android.exoplayer2.audio.AudioProcessor; ...@@ -29,7 +29,9 @@ import com.google.android.exoplayer2.audio.AudioProcessor;
import com.google.android.exoplayer2.audio.AudioProcessor.AudioFormat; import com.google.android.exoplayer2.audio.AudioProcessor.AudioFormat;
import com.google.android.exoplayer2.audio.SonicAudioProcessor; import com.google.android.exoplayer2.audio.SonicAudioProcessor;
import com.google.android.exoplayer2.decoder.DecoderInputBuffer; import com.google.android.exoplayer2.decoder.DecoderInputBuffer;
import com.google.android.exoplayer2.util.Util;
import java.nio.ByteBuffer; import java.nio.ByteBuffer;
import org.checkerframework.dataflow.qual.Pure;
/** /**
* Pipeline to decode audio samples, apply transformations on the raw samples, and re-encode them. * Pipeline to decode audio samples, apply transformations on the raw samples, and re-encode them.
...@@ -39,13 +41,12 @@ import java.nio.ByteBuffer; ...@@ -39,13 +41,12 @@ import java.nio.ByteBuffer;
private static final String TAG = "AudioSamplePipeline"; private static final String TAG = "AudioSamplePipeline";
private static final int DEFAULT_ENCODER_BITRATE = 128 * 1024; private static final int DEFAULT_ENCODER_BITRATE = 128 * 1024;
private final TransformationRequest transformationRequest;
private final Codec decoder; private final Codec decoder;
private final DecoderInputBuffer decoderInputBuffer; private final DecoderInputBuffer decoderInputBuffer;
private final SonicAudioProcessor sonicAudioProcessor; private final SonicAudioProcessor sonicAudioProcessor;
private final SpeedProvider speedProvider; private final SpeedProvider speedProvider;
private final boolean flattenForSlowMotion;
private final Codec encoder; private final Codec encoder;
private final AudioFormat encoderInputAudioFormat; private final AudioFormat encoderInputAudioFormat;
...@@ -63,9 +64,9 @@ import java.nio.ByteBuffer; ...@@ -63,9 +64,9 @@ import java.nio.ByteBuffer;
Format inputFormat, Format inputFormat,
TransformationRequest transformationRequest, TransformationRequest transformationRequest,
Codec.EncoderFactory encoderFactory, Codec.EncoderFactory encoderFactory,
Codec.DecoderFactory decoderFactory) Codec.DecoderFactory decoderFactory,
FallbackListener fallbackListener)
throws TransformationException { throws TransformationException {
this.transformationRequest = transformationRequest;
decoderInputBuffer = decoderInputBuffer =
new DecoderInputBuffer(DecoderInputBuffer.BUFFER_REPLACEMENT_MODE_DISABLED); new DecoderInputBuffer(DecoderInputBuffer.BUFFER_REPLACEMENT_MODE_DISABLED);
encoderInputBuffer = encoderInputBuffer =
...@@ -75,6 +76,7 @@ import java.nio.ByteBuffer; ...@@ -75,6 +76,7 @@ import java.nio.ByteBuffer;
this.decoder = decoderFactory.createForAudioDecoding(inputFormat); this.decoder = decoderFactory.createForAudioDecoding(inputFormat);
this.flattenForSlowMotion = transformationRequest.flattenForSlowMotion;
sonicAudioProcessor = new SonicAudioProcessor(); sonicAudioProcessor = new SonicAudioProcessor();
sonicOutputBuffer = AudioProcessor.EMPTY_BUFFER; sonicOutputBuffer = AudioProcessor.EMPTY_BUFFER;
speedProvider = new SegmentSpeedProvider(inputFormat); speedProvider = new SegmentSpeedProvider(inputFormat);
...@@ -86,7 +88,7 @@ import java.nio.ByteBuffer; ...@@ -86,7 +88,7 @@ import java.nio.ByteBuffer;
// The decoder uses ENCODING_PCM_16BIT by default. // The decoder uses ENCODING_PCM_16BIT by default.
// https://developer.android.com/reference/android/media/MediaCodec#raw-audio-buffers // https://developer.android.com/reference/android/media/MediaCodec#raw-audio-buffers
C.ENCODING_PCM_16BIT); C.ENCODING_PCM_16BIT);
if (transformationRequest.flattenForSlowMotion) { if (flattenForSlowMotion) {
try { try {
encoderInputAudioFormat = sonicAudioProcessor.configure(encoderInputAudioFormat); encoderInputAudioFormat = sonicAudioProcessor.configure(encoderInputAudioFormat);
} catch (AudioProcessor.UnhandledAudioFormatException impossible) { } catch (AudioProcessor.UnhandledAudioFormatException impossible) {
...@@ -96,9 +98,9 @@ import java.nio.ByteBuffer; ...@@ -96,9 +98,9 @@ import java.nio.ByteBuffer;
sonicAudioProcessor.setPitch(currentSpeed); sonicAudioProcessor.setPitch(currentSpeed);
sonicAudioProcessor.flush(); sonicAudioProcessor.flush();
} }
this.encoderInputAudioFormat = encoderInputAudioFormat;
encoder = Format requestedOutputFormat =
encoderFactory.createForAudioEncoding(
new Format.Builder() new Format.Builder()
.setSampleMimeType( .setSampleMimeType(
transformationRequest.audioMimeType == null transformationRequest.audioMimeType == null
...@@ -107,8 +109,12 @@ import java.nio.ByteBuffer; ...@@ -107,8 +109,12 @@ import java.nio.ByteBuffer;
.setSampleRate(encoderInputAudioFormat.sampleRate) .setSampleRate(encoderInputAudioFormat.sampleRate)
.setChannelCount(encoderInputAudioFormat.channelCount) .setChannelCount(encoderInputAudioFormat.channelCount)
.setAverageBitrate(DEFAULT_ENCODER_BITRATE) .setAverageBitrate(DEFAULT_ENCODER_BITRATE)
.build()); .build();
this.encoderInputAudioFormat = encoderInputAudioFormat; encoder = encoderFactory.createForAudioEncoding(requestedOutputFormat);
fallbackListener.onTransformationRequestFinalized(
createFallbackRequest(
transformationRequest, requestedOutputFormat, encoder.getConfigurationFormat()));
} }
@Override @Override
...@@ -293,7 +299,7 @@ import java.nio.ByteBuffer; ...@@ -293,7 +299,7 @@ import java.nio.ByteBuffer;
} }
private boolean isSpeedChanging(BufferInfo bufferInfo) { private boolean isSpeedChanging(BufferInfo bufferInfo) {
if (!transformationRequest.flattenForSlowMotion) { if (!flattenForSlowMotion) {
return false; return false;
} }
float newSpeed = speedProvider.getSpeed(bufferInfo.presentationTimeUs); float newSpeed = speedProvider.getSpeed(bufferInfo.presentationTimeUs);
...@@ -325,4 +331,15 @@ import java.nio.ByteBuffer; ...@@ -325,4 +331,15 @@ import java.nio.ByteBuffer;
} }
nextEncoderInputBufferTimeUs += bufferDurationUs; nextEncoderInputBufferTimeUs += bufferDurationUs;
} }
@Pure
private static TransformationRequest createFallbackRequest(
TransformationRequest transformationRequest, Format requestedFormat, Format actualFormat) {
// TODO(b/210591626): Also update bitrate and other params once encoder configuration and
// fallback are implemented.
if (Util.areEqual(requestedFormat.sampleMimeType, actualFormat.sampleMimeType)) {
return transformationRequest;
}
return transformationRequest.buildUpon().setAudioMimeType(actualFormat.sampleMimeType).build();
}
} }
library/transformer/src/main/java/com/google/android/exoplayer2/transformer/PassthroughSamplePipeline.java
...@@ -28,10 +28,14 @@ import com.google.android.exoplayer2.decoder.DecoderInputBuffer; ...@@ -28,10 +28,14 @@ import com.google.android.exoplayer2.decoder.DecoderInputBuffer;
private boolean hasPendingBuffer; private boolean hasPendingBuffer;
public PassthroughSamplePipeline(Format format) { public PassthroughSamplePipeline(
Format format,
TransformationRequest transformationRequest,
FallbackListener fallbackListener) {
this.format = format; this.format = format;
buffer = new DecoderInputBuffer(DecoderInputBuffer.BUFFER_REPLACEMENT_MODE_DIRECT); buffer = new DecoderInputBuffer(DecoderInputBuffer.BUFFER_REPLACEMENT_MODE_DIRECT);
hasPendingBuffer = false; hasPendingBuffer = false;
fallbackListener.onTransformationRequestFinalized(transformationRequest);
} }
@Override @Override
......
library/transformer/src/main/java/com/google/android/exoplayer2/transformer/Transformer.java
...@@ -703,6 +703,7 @@ public final class Transformer { ...@@ -703,6 +703,7 @@ public final class Transformer {
transformationRequest, transformationRequest,
encoderFactory, encoderFactory,
decoderFactory, decoderFactory,
new FallbackListener(mediaItem, listeners, transformationRequest),
debugViewProvider)) debugViewProvider))
.setMediaSourceFactory(mediaSourceFactory) .setMediaSourceFactory(mediaSourceFactory)
.setTrackSelector(trackSelector) .setTrackSelector(trackSelector)
...@@ -805,6 +806,7 @@ public final class Transformer { ...@@ -805,6 +806,7 @@ public final class Transformer {
private final TransformationRequest transformationRequest; private final TransformationRequest transformationRequest;
private final Codec.EncoderFactory encoderFactory; private final Codec.EncoderFactory encoderFactory;
private final Codec.DecoderFactory decoderFactory; private final Codec.DecoderFactory decoderFactory;
private final FallbackListener fallbackListener;
private final Transformer.DebugViewProvider debugViewProvider; private final Transformer.DebugViewProvider debugViewProvider;
public TransformerRenderersFactory( public TransformerRenderersFactory(
...@@ -815,6 +817,7 @@ public final class Transformer { ...@@ -815,6 +817,7 @@ public final class Transformer {
TransformationRequest transformationRequest, TransformationRequest transformationRequest,
Codec.EncoderFactory encoderFactory, Codec.EncoderFactory encoderFactory,
Codec.DecoderFactory decoderFactory, Codec.DecoderFactory decoderFactory,
FallbackListener fallbackListener,
Transformer.DebugViewProvider debugViewProvider) { Transformer.DebugViewProvider debugViewProvider) {
this.context = context; this.context = context;
this.muxerWrapper = muxerWrapper; this.muxerWrapper = muxerWrapper;
...@@ -823,6 +826,7 @@ public final class Transformer { ...@@ -823,6 +826,7 @@ public final class Transformer {
this.transformationRequest = transformationRequest; this.transformationRequest = transformationRequest;
this.encoderFactory = encoderFactory; this.encoderFactory = encoderFactory;
this.decoderFactory = decoderFactory; this.decoderFactory = decoderFactory;
this.fallbackListener = fallbackListener;
this.debugViewProvider = debugViewProvider; this.debugViewProvider = debugViewProvider;
mediaClock = new TransformerMediaClock(); mediaClock = new TransformerMediaClock();
} }
...@@ -840,7 +844,12 @@ public final class Transformer { ...@@ -840,7 +844,12 @@ public final class Transformer {
if (!removeAudio) { if (!removeAudio) {
renderers[index] = renderers[index] =
new TransformerAudioRenderer( new TransformerAudioRenderer(
muxerWrapper, mediaClock, transformationRequest, encoderFactory, decoderFactory); muxerWrapper,
mediaClock,
transformationRequest,
encoderFactory,
decoderFactory,
fallbackListener);
index++; index++;
} }
if (!removeVideo) { if (!removeVideo) {
...@@ -852,6 +861,7 @@ public final class Transformer { ...@@ -852,6 +861,7 @@ public final class Transformer {
transformationRequest, transformationRequest,
encoderFactory, encoderFactory,
decoderFactory, decoderFactory,
fallbackListener,
debugViewProvider); debugViewProvider);
index++; index++;
} }
......
library/transformer/src/main/java/com/google/android/exoplayer2/transformer/TransformerAudioRenderer.java
...@@ -41,8 +41,9 @@ import com.google.android.exoplayer2.source.SampleStream.ReadDataResult; ...@@ -41,8 +41,9 @@ import com.google.android.exoplayer2.source.SampleStream.ReadDataResult;
TransformerMediaClock mediaClock, TransformerMediaClock mediaClock,
TransformationRequest transformationRequest, TransformationRequest transformationRequest,
Codec.EncoderFactory encoderFactory, Codec.EncoderFactory encoderFactory,
Codec.DecoderFactory decoderFactory) { Codec.DecoderFactory decoderFactory,
super(C.TRACK_TYPE_AUDIO, muxerWrapper, mediaClock, transformationRequest); FallbackListener fallbackListener) {
super(C.TRACK_TYPE_AUDIO, muxerWrapper, mediaClock, transformationRequest, fallbackListener);
this.encoderFactory = encoderFactory; this.encoderFactory = encoderFactory;
this.decoderFactory = decoderFactory; this.decoderFactory = decoderFactory;
decoderInputBuffer = decoderInputBuffer =
...@@ -78,11 +79,12 @@ import com.google.android.exoplayer2.source.SampleStream.ReadDataResult; ...@@ -78,11 +79,12 @@ import com.google.android.exoplayer2.source.SampleStream.ReadDataResult;
TransformationException.ERROR_CODE_OUTPUT_FORMAT_UNSUPPORTED); TransformationException.ERROR_CODE_OUTPUT_FORMAT_UNSUPPORTED);
} }
if (shouldPassthrough(inputFormat)) { if (shouldPassthrough(inputFormat)) {
samplePipeline = new PassthroughSamplePipeline(inputFormat); samplePipeline =
new PassthroughSamplePipeline(inputFormat, transformationRequest, fallbackListener);
} else { } else {
samplePipeline = samplePipeline =
new AudioSamplePipeline( new AudioSamplePipeline(
inputFormat, transformationRequest, encoderFactory, decoderFactory); inputFormat, transformationRequest, encoderFactory, decoderFactory, fallbackListener);
} }
return true; return true;
} }
......
library/transformer/src/main/java/com/google/android/exoplayer2/transformer/TransformerBaseRenderer.java
...@@ -39,6 +39,7 @@ import org.checkerframework.checker.nullness.qual.RequiresNonNull; ...@@ -39,6 +39,7 @@ import org.checkerframework.checker.nullness.qual.RequiresNonNull;
protected final MuxerWrapper muxerWrapper; protected final MuxerWrapper muxerWrapper;
protected final TransformerMediaClock mediaClock; protected final TransformerMediaClock mediaClock;
protected final TransformationRequest transformationRequest; protected final TransformationRequest transformationRequest;
protected final FallbackListener fallbackListener;
protected boolean isRendererStarted; protected boolean isRendererStarted;
protected boolean muxerWrapperTrackAdded; protected boolean muxerWrapperTrackAdded;
...@@ -50,11 +51,13 @@ import org.checkerframework.checker.nullness.qual.RequiresNonNull; ...@@ -50,11 +51,13 @@ import org.checkerframework.checker.nullness.qual.RequiresNonNull;
int trackType, int trackType,
MuxerWrapper muxerWrapper, MuxerWrapper muxerWrapper,
TransformerMediaClock mediaClock, TransformerMediaClock mediaClock,
TransformationRequest transformationRequest) { TransformationRequest transformationRequest,
FallbackListener fallbackListener) {
super(trackType); super(trackType);
this.muxerWrapper = muxerWrapper; this.muxerWrapper = muxerWrapper;
this.mediaClock = mediaClock; this.mediaClock = mediaClock;
this.transformationRequest = transformationRequest; this.transformationRequest = transformationRequest;
this.fallbackListener = fallbackListener;
} }
/** /**
...@@ -112,6 +115,7 @@ import org.checkerframework.checker.nullness.qual.RequiresNonNull; ...@@ -112,6 +115,7 @@ import org.checkerframework.checker.nullness.qual.RequiresNonNull;
@Override @Override
protected final void onEnabled(boolean joining, boolean mayRenderStartOfStream) { protected final void onEnabled(boolean joining, boolean mayRenderStartOfStream) {
muxerWrapper.registerTrack(); muxerWrapper.registerTrack();
fallbackListener.registerTrack();
mediaClock.updateTimeForTrackType(getTrackType(), 0L); mediaClock.updateTimeForTrackType(getTrackType(), 0L);
} }
......
library/transformer/src/main/java/com/google/android/exoplayer2/transformer/TransformerVideoRenderer.java
...@@ -48,8 +48,9 @@ import org.checkerframework.checker.nullness.qual.RequiresNonNull; ...@@ -48,8 +48,9 @@ import org.checkerframework.checker.nullness.qual.RequiresNonNull;
TransformationRequest transformationRequest, TransformationRequest transformationRequest,
Codec.EncoderFactory encoderFactory, Codec.EncoderFactory encoderFactory,
Codec.DecoderFactory decoderFactory, Codec.DecoderFactory decoderFactory,
FallbackListener fallbackListener,
Transformer.DebugViewProvider debugViewProvider) { Transformer.DebugViewProvider debugViewProvider) {
super(C.TRACK_TYPE_VIDEO, muxerWrapper, mediaClock, transformationRequest); super(C.TRACK_TYPE_VIDEO, muxerWrapper, mediaClock, transformationRequest, fallbackListener);
this.context = context; this.context = context;
this.encoderFactory = encoderFactory; this.encoderFactory = encoderFactory;
this.decoderFactory = decoderFactory; this.decoderFactory = decoderFactory;
...@@ -87,7 +88,8 @@ import org.checkerframework.checker.nullness.qual.RequiresNonNull; ...@@ -87,7 +88,8 @@ import org.checkerframework.checker.nullness.qual.RequiresNonNull;
TransformationException.ERROR_CODE_OUTPUT_FORMAT_UNSUPPORTED); TransformationException.ERROR_CODE_OUTPUT_FORMAT_UNSUPPORTED);
} }
if (shouldPassthrough(inputFormat)) { if (shouldPassthrough(inputFormat)) {
samplePipeline = new PassthroughSamplePipeline(inputFormat); samplePipeline =
new PassthroughSamplePipeline(inputFormat, transformationRequest, fallbackListener);
} else { } else {
samplePipeline = samplePipeline =
new VideoSamplePipeline( new VideoSamplePipeline(
...@@ -96,6 +98,7 @@ import org.checkerframework.checker.nullness.qual.RequiresNonNull; ...@@ -96,6 +98,7 @@ import org.checkerframework.checker.nullness.qual.RequiresNonNull;
transformationRequest, transformationRequest,
encoderFactory, encoderFactory,
decoderFactory, decoderFactory,
fallbackListener,
debugViewProvider); debugViewProvider);
} }
if (transformationRequest.flattenForSlowMotion) { if (transformationRequest.flattenForSlowMotion) {
......
library/transformer/src/main/java/com/google/android/exoplayer2/transformer/VideoSamplePipeline.java
...@@ -28,7 +28,9 @@ import androidx.annotation.RequiresApi; ...@@ -28,7 +28,9 @@ import androidx.annotation.RequiresApi;
import com.google.android.exoplayer2.C; import com.google.android.exoplayer2.C;
import com.google.android.exoplayer2.Format; import com.google.android.exoplayer2.Format;
import com.google.android.exoplayer2.decoder.DecoderInputBuffer; import com.google.android.exoplayer2.decoder.DecoderInputBuffer;
import com.google.android.exoplayer2.util.Util;
import org.checkerframework.checker.nullness.qual.MonotonicNonNull; import org.checkerframework.checker.nullness.qual.MonotonicNonNull;
import org.checkerframework.dataflow.qual.Pure;
/** /**
* Pipeline to decode video samples, apply transformations on the raw samples, and re-encode them. * Pipeline to decode video samples, apply transformations on the raw samples, and re-encode them.
...@@ -54,6 +56,7 @@ import org.checkerframework.checker.nullness.qual.MonotonicNonNull; ...@@ -54,6 +56,7 @@ import org.checkerframework.checker.nullness.qual.MonotonicNonNull;
TransformationRequest transformationRequest, TransformationRequest transformationRequest,
Codec.EncoderFactory encoderFactory, Codec.EncoderFactory encoderFactory,
Codec.DecoderFactory decoderFactory, Codec.DecoderFactory decoderFactory,
FallbackListener fallbackListener,
Transformer.DebugViewProvider debugViewProvider) Transformer.DebugViewProvider debugViewProvider)
throws TransformationException { throws TransformationException {
decoderInputBuffer = decoderInputBuffer =
...@@ -63,7 +66,7 @@ import org.checkerframework.checker.nullness.qual.MonotonicNonNull; ...@@ -63,7 +66,7 @@ import org.checkerframework.checker.nullness.qual.MonotonicNonNull;
// Scale width and height to desired transformationRequest.outputHeight, preserving aspect // Scale width and height to desired transformationRequest.outputHeight, preserving aspect
// ratio. // ratio.
// TODO(internal b/209781577): Think about which edge length should be set for portrait videos. // TODO(b/209781577): Think about which edge length should be set for portrait videos.
float inputFormatAspectRatio = (float) inputFormat.width / inputFormat.height; float inputFormatAspectRatio = (float) inputFormat.width / inputFormat.height;
int outputWidth = inputFormat.width; int outputWidth = inputFormat.width;
int outputHeight = inputFormat.height; int outputHeight = inputFormat.height;
...@@ -102,8 +105,7 @@ import org.checkerframework.checker.nullness.qual.MonotonicNonNull; ...@@ -102,8 +105,7 @@ import org.checkerframework.checker.nullness.qual.MonotonicNonNull;
// postRotate in a later vertex shader. // postRotate in a later vertex shader.
transformationMatrix.postRotate(outputRotationDegrees); transformationMatrix.postRotate(outputRotationDegrees);
encoder = Format requestedOutputFormat =
encoderFactory.createForVideoEncoding(
new Format.Builder() new Format.Builder()
.setWidth(outputWidth) .setWidth(outputWidth)
.setHeight(outputHeight) .setHeight(outputHeight)
...@@ -112,7 +114,12 @@ import org.checkerframework.checker.nullness.qual.MonotonicNonNull; ...@@ -112,7 +114,12 @@ import org.checkerframework.checker.nullness.qual.MonotonicNonNull;
transformationRequest.videoMimeType != null transformationRequest.videoMimeType != null
? transformationRequest.videoMimeType ? transformationRequest.videoMimeType
: inputFormat.sampleMimeType) : inputFormat.sampleMimeType)
.build()); .build();
encoder = encoderFactory.createForVideoEncoding(requestedOutputFormat);
fallbackListener.onTransformationRequestFinalized(
createFallbackRequest(
transformationRequest, requestedOutputFormat, encoder.getConfigurationFormat()));
if (inputFormat.height != outputHeight if (inputFormat.height != outputHeight
|| inputFormat.width != outputWidth || inputFormat.width != outputWidth
|| !transformationMatrix.isIdentity()) { || !transformationMatrix.isIdentity()) {
...@@ -261,4 +268,15 @@ import org.checkerframework.checker.nullness.qual.MonotonicNonNull; ...@@ -261,4 +268,15 @@ import org.checkerframework.checker.nullness.qual.MonotonicNonNull;
decoder.release(); decoder.release();
encoder.release(); encoder.release();
} }
@Pure
private static TransformationRequest createFallbackRequest(
TransformationRequest transformationRequest, Format requestedFormat, Format actualFormat) {
// TODO(b/210591626): Also update resolution, bitrate etc. once encoder configuration and
// fallback are implemented.
if (Util.areEqual(requestedFormat.sampleMimeType, actualFormat.sampleMimeType)) {
return transformationRequest;
}
return transformationRequest.buildUpon().setVideoMimeType(actualFormat.sampleMimeType).build();
}
} }
library/transformer/src/test/java/com/google/android/exoplayer2/transformer/TransformerTest.java
...@@ -65,6 +65,7 @@ import org.robolectric.shadows.ShadowMediaCodec; ...@@ -65,6 +65,7 @@ import org.robolectric.shadows.ShadowMediaCodec;
/** Unit test for {@link Transformer}. */ /** Unit test for {@link Transformer}. */
@RunWith(AndroidJUnit4.class) @RunWith(AndroidJUnit4.class)
public final class TransformerTest { public final class TransformerTest {
// TODO(b/214973843): Disable fallback for all tests that aren't specifically testing fallback.
private static final String URI_PREFIX = "asset:///media/"; private static final String URI_PREFIX = "asset:///media/";
private static final String FILE_VIDEO_ONLY = "mp4/sample_18byte_nclx_colr.mp4"; private static final String FILE_VIDEO_ONLY = "mp4/sample_18byte_nclx_colr.mp4";
......
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