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Add an SSIM test with 360p input

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This test should run on all devices from API 21 (the media uses Baseline
profile level 3.0 H.264) to give us coverage of the full pipeline (forcing
re-encoding) and SSIM calculation on all devices.

PiperOrigin-RevId: 443650002
This commit is contained in:
andrewlewis 2022-04-22 14:31:09 +01:00 committed by Ian Baker
parent 0a378a4555
commit c8744ee9bd
3 changed files with 29 additions and 0 deletions
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libraries/test_data/src/test/assets/media/mp4/sample_with_increasing_timestamps_360p.mp4 Normal file
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4
libraries/transformer/src/androidTest/java/androidx/media3/transformer/AndroidTestUtil.java
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@ -57,6 +57,10 @@ public final class AndroidTestUtil {
.setFrameRate(30.00f) .setFrameRate(30.00f)
.build(); .build();
/** Baseline profile level 3.0 H.264 stream, which should be supported on all devices. */
public static final String MP4_ASSET_WITH_INCREASING_TIMESTAMPS_360P_15S_URI_STRING =
"asset:///media/mp4/sample_with_increasing_timestamps_360p.mp4";
public static final String MP4_ASSET_SEF_URI_STRING = public static final String MP4_ASSET_SEF_URI_STRING =
"asset:///media/mp4/sample_sef_slow_motion.mp4"; "asset:///media/mp4/sample_sef_slow_motion.mp4";
public static final Format MP4_ASSET_SEF_FORMAT = public static final Format MP4_ASSET_SEF_FORMAT =

25
libraries/transformer/src/androidTest/java/androidx/media3/transformer/mh/TranscodeQualityTest.java
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@ -86,4 +86,29 @@ public final class TranscodeQualityTest {
assertThat(result.ssim).isGreaterThan(0.90); assertThat(result.ssim).isGreaterThan(0.90);
} }
@Test
public void transcodeAvcToAvc360p_ssimIsGreaterThan90Percent() throws Exception {
Context context = ApplicationProvider.getApplicationContext();
String testId = "transcodeAvcToAvc360p_ssim";
// Note: We never skip this test as the input and output formats should be within CDD
// requirements on all supported API versions.
Transformer transformer =
new Transformer.Builder(context)
.setTransformationRequest(
new TransformationRequest.Builder().setVideoMimeType(MimeTypes.VIDEO_H264).build())
.setEncoderFactory(AndroidTestUtil.FORCE_ENCODE_ENCODER_FACTORY)
.setRemoveAudio(true)
.build();
TransformationTestResult result =
new TransformerAndroidTestRunner.Builder(context, transformer)
.setCalculateSsim(true)
.build()
.run(testId, AndroidTestUtil.MP4_ASSET_WITH_INCREASING_TIMESTAMPS_360P_15S_URI_STRING);
assertThat(result.ssim).isGreaterThan(0.90);
}
} }