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Transformer GL: Add image diff in test.

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PiperOrigin-RevId: 422392959
This commit is contained in:
huangdarwin 2022-01-17 19:15:49 +00:00 committed by Ian Baker
parent 9ef376e4cb
commit ace1988a35
1 changed files with 5 additions and 0 deletions
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5
libraries/transformer/src/androidTest/java/androidx/media3/transformer/FrameEditorDataProcessingTest.java
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@ -301,6 +301,10 @@ public final class FrameEditorDataProcessingTest {
assertThat(height).isEqualTo(expected.getHeight());
assertThat(actual.getConfig()).isEqualTo(Bitmap.Config.ARGB_8888);
long sumMaximumAbsoluteDifferences = 0;
// Debug-only image diff without alpha. To use, set a breakpoint right before the method return
// to view the difference between the expected and actual bitmaps. A passing test should show
// an image that is completely black (color == 0).
Bitmap debugDiff = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
for (int y = 0; y < height; y++) {
for (int x = 0; x < width; x++) {
int actualColor = actual.getPixel(x, y);
@ -310,6 +314,7 @@ public final class FrameEditorDataProcessingTest {
int redDifference = abs(Color.red(actualColor) - Color.red(expectedColor));
int blueDifference = abs(Color.blue(actualColor) - Color.blue(expectedColor));
int greenDifference = abs(Color.green(actualColor) - Color.green(expectedColor));
debugDiff.setPixel(x, y, Color.rgb(redDifference, blueDifference, greenDifference));
int maximumAbsoluteDifference = 0;
maximumAbsoluteDifference = max(maximumAbsoluteDifference, alphaDifference);