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Reword MAXIMUM_AVERAGE_PIXEL_ABSOLUTE_DIFFERENCE javadoc.

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MAXIMUM_AVERAGE_PIXEL_ABSOLUTE_DIFFERENCE was copied from a test
class, but BitmapTestUtil isn't a test. So the javadoc needs
rewording to reflect that.

PiperOrigin-RevId: 438001833
This commit is contained in:
hschlueter 2022-03-29 13:45:59 +01:00 committed by Ian Baker
parent f48babb4ed
commit bd6eaab6b4
1 changed files with 11 additions and 11 deletions
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22
libraries/transformer/src/androidTest/java/androidx/media3/transformer/BitmapTestUtil.java
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@ -64,18 +64,18 @@ public class BitmapTestUtil {
public static final String ROTATE45_SCALE_TO_FIT_EXPECTED_OUTPUT_PNG_ASSET_STRING = public static final String ROTATE45_SCALE_TO_FIT_EXPECTED_OUTPUT_PNG_ASSET_STRING =
"media/bitmap/sample_mp4_first_frame_rotate_45_scale_to_fit.png"; "media/bitmap/sample_mp4_first_frame_rotate_45_scale_to_fit.png";
/** /**
* Maximum allowed average pixel difference between the expected and actual edited images for the * Maximum allowed average pixel difference between the expected and actual edited images in pixel
* test to pass. The value is chosen so that differences in decoder behavior across emulator * difference-based tests. The value is chosen so that differences in decoder behavior across
* versions don't affect whether the test passes for most emulators, but substantial distortions * emulator versions don't affect whether the test passes for most emulators, but substantial
* introduced by changes in the behavior of the {@link GlFrameProcessor GlFrameProcessors} will * distortions introduced by changes in the behavior of the {@link GlFrameProcessor
* cause the test to fail. * GlFrameProcessors} will cause the test to fail.
* *
* <p>To run this test on physical devices, please use a value of 5f, rather than 0.1f. This * <p>To run pixel difference-based tests on physical devices, please use a value of 5f, rather
* higher value will ignore some very small errors, but will allow for some differences caused by * than 0.1f. This higher value will ignore some very small errors, but will allow for some
* graphics implementations to be ignored. When the difference is close to the threshold, manually * differences caused by graphics implementations to be ignored. When the difference is close to
* inspect expected/actual bitmaps to confirm failure, as it's possible this is caused by a * the threshold, manually inspect expected/actual bitmaps to confirm failure, as it's possible
* difference in the codec or graphics implementation as opposed to a {@link GlFrameProcessor} * this is caused by a difference in the codec or graphics implementation as opposed to a {@link
* issue. * GlFrameProcessor} issue.
*/ */
public static final float MAXIMUM_AVERAGE_PIXEL_ABSOLUTE_DIFFERENCE = 0.1f; public static final float MAXIMUM_AVERAGE_PIXEL_ABSOLUTE_DIFFERENCE = 0.1f;