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Assert silent bytes are 0 in AudioGraphInputTest

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PiperOrigin-RevId: 668403467
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samrobinson 2024-08-28 05:15:23 -07:00 committed by Copybara-Service
parent 84f4c7bbcc
commit 9c5ea4f1ba
1 changed files with 17 additions and 14 deletions
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31
libraries/transformer/src/test/java/androidx/media3/transformer/AudioGraphInputTest.java
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@ -410,8 +410,7 @@ public class AudioGraphInputTest {
List<Byte> outputBytes = drainAudioGraphInputUntilEnded(audioGraphInput); List<Byte> outputBytes = drainAudioGraphInputUntilEnded(audioGraphInput);
long expectedSampleCount = Util.durationUsToSampleCount(1_000_000, STEREO_44100.sampleRate); long expectedSampleCount = Util.durationUsToSampleCount(1_000_000, STEREO_44100.sampleRate);
// Silent audio generator rounds up duration. // Silent audio generator rounds up duration.
assertThat(outputBytes.size()) assertThat(outputBytes).hasSize((int) ((expectedSampleCount + 1) * STEREO_44100.bytesPerFrame));
.isEqualTo((expectedSampleCount + 1) * STEREO_44100.bytesPerFrame);
assertThat(outputBytes.subList(0, inputData.length)) assertThat(outputBytes.subList(0, inputData.length))
.containsExactlyElementsIn(Bytes.asList(inputData)) .containsExactlyElementsIn(Bytes.asList(inputData))
.inOrder(); .inOrder();
@ -452,8 +451,7 @@ public class AudioGraphInputTest {
List<Byte> outputBytes = drainAudioGraphInputUntilEnded(audioGraphInput); List<Byte> outputBytes = drainAudioGraphInputUntilEnded(audioGraphInput);
long expectedSampleCount = Util.durationUsToSampleCount(500_000, STEREO_44100.sampleRate); long expectedSampleCount = Util.durationUsToSampleCount(500_000, STEREO_44100.sampleRate);
// Silent audio generator rounds up duration. // Silent audio generator rounds up duration.
assertThat(outputBytes.size()) assertThat(outputBytes).hasSize((int) ((expectedSampleCount + 1) * STEREO_44100.bytesPerFrame));
.isEqualTo((expectedSampleCount + 1) * STEREO_44100.bytesPerFrame);
// Sonic takes a while to zero-out the input. // Sonic takes a while to zero-out the input.
assertThat(min(outputBytes.subList(inputData.length * 6 / 10, outputBytes.size()))) assertThat(min(outputBytes.subList(inputData.length * 6 / 10, outputBytes.size())))
.isEqualTo(0); .isEqualTo(0);
@ -462,8 +460,7 @@ public class AudioGraphInputTest {
} }
@Test @Test
public void getOutput_withSilentMediaItemChange_outputsCorrectAmountOfSilentBytes() public void getOutput_withSilentMediaItemChange_outputsCorrectSilentBytes() throws Exception {
throws Exception {
AudioGraphInput audioGraphInput = AudioGraphInput audioGraphInput =
new AudioGraphInput( new AudioGraphInput(
/* requestedOutputAudioFormat= */ AudioFormat.NOT_SET, /* requestedOutputAudioFormat= */ AudioFormat.NOT_SET,
@ -476,13 +473,15 @@ public class AudioGraphInputTest {
/* decodedFormat= */ null, /* decodedFormat= */ null,
/* isLast= */ true); /* isLast= */ true);
int bytesOutput = drainAudioGraphInputUntilEnded(audioGraphInput).size(); List<Byte> bytesOutput = drainAudioGraphInputUntilEnded(audioGraphInput);
long expectedSampleCount = Util.durationUsToSampleCount(1_000_000, STEREO_44100.sampleRate); long expectedSampleCount = Util.durationUsToSampleCount(1_000_000, STEREO_44100.sampleRate);
assertThat(bytesOutput).isEqualTo(expectedSampleCount * STEREO_44100.bytesPerFrame); assertThat(bytesOutput).hasSize((int) (expectedSampleCount * STEREO_44100.bytesPerFrame));
assertThat(min(bytesOutput)).isEqualTo(0);
assertThat(max(bytesOutput)).isEqualTo(0);
} }
@Test @Test
public void getOutput_withThreeSilentMediaItemChanges_outputsCorrectAmountOfSilentBytes() public void getOutput_withThreeSilentMediaItemChanges_outputsCorrectSilentBytes()
throws Exception { throws Exception {
AudioGraphInput audioGraphInput = AudioGraphInput audioGraphInput =
new AudioGraphInput( new AudioGraphInput(
@ -506,13 +505,15 @@ public class AudioGraphInputTest {
/* decodedFormat= */ null, /* decodedFormat= */ null,
/* isLast= */ true); /* isLast= */ true);
int bytesOutput = drainAudioGraphInputUntilEnded(audioGraphInput).size(); List<Byte> bytesOutput = drainAudioGraphInputUntilEnded(audioGraphInput);
long expectedSampleCount = Util.durationUsToSampleCount(1_000_000, STEREO_44100.sampleRate); long expectedSampleCount = Util.durationUsToSampleCount(1_000_000, STEREO_44100.sampleRate);
assertThat(bytesOutput).isEqualTo(expectedSampleCount * STEREO_44100.bytesPerFrame); assertThat(bytesOutput).hasSize((int) (expectedSampleCount * STEREO_44100.bytesPerFrame));
assertThat(min(bytesOutput)).isEqualTo(0);
assertThat(max(bytesOutput)).isEqualTo(0);
} }
@Test @Test
public void getOutput_withSilentMediaItemAndEffectsChange_outputsCorrectAmountOfSilentBytes() public void getOutput_withSilentMediaItemAndEffectsChange_outputsCorrectSilentBytes()
throws Exception { throws Exception {
AudioGraphInput audioGraphInput = AudioGraphInput audioGraphInput =
new AudioGraphInput( new AudioGraphInput(
@ -526,9 +527,11 @@ public class AudioGraphInputTest {
/* decodedFormat= */ null, /* decodedFormat= */ null,
/* isLast= */ true); /* isLast= */ true);
int bytesOutput = drainAudioGraphInputUntilEnded(audioGraphInput).size(); List<Byte> bytesOutput = drainAudioGraphInputUntilEnded(audioGraphInput);
long expectedSampleCount = Util.durationUsToSampleCount(500_000, STEREO_44100.sampleRate); long expectedSampleCount = Util.durationUsToSampleCount(500_000, STEREO_44100.sampleRate);
assertThat(bytesOutput).isEqualTo(expectedSampleCount * STEREO_44100.bytesPerFrame); assertThat(bytesOutput).hasSize((int) (expectedSampleCount * STEREO_44100.bytesPerFrame));
assertThat(min(bytesOutput)).isEqualTo(0);
assertThat(max(bytesOutput)).isEqualTo(0);
} }
@Test @Test