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Colours discrepancy when applying overlay
Version
Media3 pre-release (alpha, beta or RC not in this list)
More version details
1.4.0-beta01
Devices that reproduce the issue
Pixel 4a Android 13
Devices that do not reproduce the issue
No response
Reproducible in the demo app?
Not tested
Reproduction steps
Overlaying video with a bitmap.
no. 1: Create transparent media items with a BitmapOverlay Code:
val bitmapOverlayWithText = BitmapOverlay.createStaticBitmapOverlay(overlayBitmap)
val overlayFrameEMI = EditedMediaItem.Builder(MediaItem.fromUri(frameFile.toUri()))
.setFrameRate(D_F_RATE)
.setDurationUs(D_DURATION)
.setRemoveAudio(true)
.setEffects(
Effects(
listOf(),
listOf(
OverlayEffect(ImmutableList.of(bitmapOverlayWithText)),
)
)
)
.build()
val backgroundMI = MediaItem.fromUri(backgroundBitmapFile.toUri())
val backgroundEMI = EditedMediaItem.Builder(backgroundMI)
.setFrameRate(D_F_RATE)
.setDurationUs(D_DURATION)
.setRemoveAudio(true)
.build()
val videoMI = MediaItem.Builder().setUri(baseMediaUri)
.setClippingConfiguration(
MediaItem.ClippingConfiguration.Builder()
.setStartPositionUs(0)
.setEndPositionUs(D_DURATION)
.build()
)
.build()
val videoEMI = EditedMediaItem.Builder(videoMI)
.setEffects(
Effects(
listOf(),
listOf(ScaleAndRotateTransformation.Builder().setRotationDegrees(45f).build())
)
)
.build()
val composition = Composition.Builder(
EditedMediaItemSequence(overlayFrameEMI),
EditedMediaItemSequence(videoEMI),
EditedMediaItemSequence(backgroundEMI),
)
.build()
val transformer: Transformer =
Transformer.Builder(context)
.setVideoMimeType(MimeTypes.VIDEO_H264)
.setAudioMimeType(MimeTypes.AUDIO_AAC)
.build()
transformer.start(composition, outputFilePath)
Result:
no. 2: create MediaItem directly from the file Code diff val overlayFrameEMI = EditedMediaItem.Builder(MediaItem.fromUri(overlayFile.toUri())) .setFrameRate(D_F_RATE) .setDurationUs(D_DURATION) .build()
Although, the the last one looks close to origin, there is a significant colours discrepancy between the origin no. 1 and no. 2 I didn't observe no. 1 issue on 1.3.1
Expected result
Colours in the output are the same as in the origin.
Actual result
There is a difference between colours in the origin and BitmapOverlay
Media
Bug Report
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adb bugreport
to [email protected] after filing this issue.