Previously, we always used ImageReader to read from the output of DefaultVideoFrameProcessor, for pixel tests. This has a limitation of not being
able to read HDR contents, so that we couldn't support HDR pixel tests.
Reading from a texture allows us to use glReadPixels to read from
DefaultVideoFrameProcessor, and build upon this to implement HDR pixel tests. We do
still want tests for surface output though, because real use-cases only will output
to Surfaces.
Also, add some tests for outputting to textures, since this test infrastructure is
a bit complex.
PiperOrigin-RevId: 519786535
Since the composite matrix is ultimately rewritten to, we need to ensure it's cleared (to identity) before update.
Test plan: use an effect as a time based approach and see that the effect no longer clips
PiperOrigin-RevId: 518886623
Reduce nesting by using an early return. Also, rename
`outputSizeOrRotationChanged` to `outputChanged`, because this also applies to when the output surface changes.
Also, update local variable initialization, add some javadoc, and remove unneeded
local variable
PiperOrigin-RevId: 518241708
d288891c77 added clearing depth buffers to GLUtil, so there is no need to have allow apps to have a custom clearOutputFrame.
Also removes default implementations in GLObjectsProvider know that these methods have been implemented.
PiperOrigin-RevId: 517156304
Instead of using a long frameDurationUs with Math.floor, use a double
frameDurationUs with Math.round,
Before, playing an image with 30 fps over 1 second would result in the final
timestamp not being aligned to the expected 1 second timestamp. Over long
periods of time, this can lead to significant timestamp drift. Additionally,
for TimestampWrapper and constrained multi-asset, where TimestampWrapper
begins the 2nd effect on the 2nd asset's startTimeUs, this floor() behavior
can lead to the first few frames of the 2nd asset using the first asset's
effects, due to timestamps being mismatched.
PiperOrigin-RevId: 516529240
By making this method accept context, we can use DefaultDataSource.Factory in the DatasourceBitmapLoader to support a wider range on URI schemes in Bitmap Overlays. (and implement a local file picker for images for custom bitmap overlays in the demo transformer app)
PiperOrigin-RevId: 515013460
To create this file TextureInfo has been moved to common and renamed to GLTextureInfo.
We'll look to expand the interface in future to cover more of the methods around GL object maintenance in future as required.
PiperOrigin-RevId: 514445397
Before, we used to never call glDeleteFramebuffers, which could
in theory lead to leaks in the number of frame buffers
available and make releasing the GL context more expensive.
PiperOrigin-RevId: 514387847
Used an actual captured image with set color profile for test to minimise the chance of the test flaking. Also renamed the media/bitmap/overlay folder to media/bitmap/input_images for clarity.
PiperOrigin-RevId: 513273353
Based on 1000 test runs an emulator, with the current timeout releasing
fails (even with no custom effects) about one percent of the time.
Releasing normally completes in about 30 ms but occasionally
`eglTerminate` took up to 200 ms (and even releasing an effect
took up to 80 ms in one case).
With the new timeout of 500 ms, we still catch stuck effects reasonably
quickly but the number of flaky test failures should be less than one in
ten thousand.
PiperOrigin-RevId: 512690715
Uses the first mediaItem's format as the output format.
If there is `Presentation` supplied in the `Composition.effects`, add it as the
last effect of the first EditedMediaItem.
PiperOrigin-RevId: 512082659
Also remove @WorkerThread annotations, as static checks associated with
this annotation aren't useful in this part of the codebase because
almost no methods are called on the main thread.
This change should be a no-op.
PiperOrigin-RevId: 512060367
Currently if releasing a shader program throws we don't release the GL
context, which could leak resources, and any errors are silently dropped
as we suppress notifications during releasing.
Improve resource cleanup and debuggability of errors from custom effects
by continuing to release shaders on failure (for runtime and
`VideoFrameProcessingException`s) and always clean up the GL context.
Note: this doesn't help with the case where releasing a custom shader
blocks for a long time, causing releasing the frame processor to
time out.
PiperOrigin-RevId: 512042501
Also, allow isNoOp to default to false without the TODO, so that implementations
of isNoOp must opt-in to implementing the override in order to be considered for
skipping the effect (ex. for transcoding in Transformer).
PiperOrigin-RevId: 511223540
Rename:
* MatrixShaderProgram to DefaultShaderProgram, and
* FinalMatrixShaderProgramWrapper to FinalShaderProgramWrapper.
PiperOrigin-RevId: 510498547
Rename ScaleToFitTransformation to ScaleAndRotateTransformation.
This better represents the operations that can be accomplished using this
effect. The name was originally named ScaleToFit* because it's not obvious how
to scale to fit using OpenGL, and this effect handled the scaling to fit in a way that no other MatrixTransformations did.
However, it's hard to discover how to rotate when skimming names of effects, so
it's probably more useful to convey that this effect rotates, than that it
scales to fit.
PiperOrigin-RevId: 510480078
Now that the GLEffectFrameProcessor handles external (video) and internal (image) input, components used only for external input needs should be moved to the ExternalTextureManager for code clarity
PiperOrigin-RevId: 509787494
It can be confusing how to use RgbMatrix for app devs not comfortable with image
manipulation, so add a helper class that simply translates rgb values the same
constant brightness value, to update the brightness values.
PiperOrigin-RevId: 509287229
GLEffectsFrameProcessor, MatrixShaderProgram and FinalMatrixShaderProgramWrapper are currently setup to handle the input frames coming from an external input (i.e. a video decoder). Image input is loaded into Bitmap objects at the start of the pipeline, so they are not produced externally. The changes provide a way for the frame processing pipeline to handle this "internal" (i.e. non-external) input.
PiperOrigin-RevId: 508645244
Based on [this conversation thread](https://chat.google.com/room/AAAA--f88ao/76Rem_cRCK8), I've opted to update the existing FrameProcessor.create() rather than deprecate it, as it is unlikely to be in use by apps outside google3.
PiperOrigin-RevId: 506920930
Set the correct output color on the debug SurfaceViewWrapper, so that SDR contents
can have an output transfer of either GAMMA_2_2 (Gamma 2.2) or SDR (SMPTE 170M).
This fixes an issue where in-app tone-mapping would output gamma 2.2, and the
SDR value incorrectly hardcoded here would lead to an error in the OpenGL, which
does not support SMPTE 170M.
PiperOrigin-RevId: 506684602
With the current ExtTexMgr,
it can happen that
- `x` frames are registered, but haven't arrived yet
- flush
- need to drop `x` frames when they arrive on SurfaceTexture
- status is reset to 0 pending, 0 available, drop `x` when frames arrive
- register one frame
- status is set to 1 pending, 0 available, drop `x` when frames arrive
- flush
- now the number of frame to drop is reset to `pending - available = 1`
- but it should be `x+1`
This CL solves the issue by reporting (by running the afterFlushTask) flush completes only after all the pending frames before calling flush are accounted for.
PiperOrigin-RevId: 506310671
Flushing resets all the texture processors within the `FrameProcessor`. This
includes:
- At the back, the FinalMatrixTextureProcessorWrapper, and its MatrixTextureProcessor
- At the front, the ExternalTextureManager
- All the texture processors in between
- All the ChainingGlTextureProcessorListeners in between texture processors
- All the internal states in the aforementioned components
The flush process follows the order, from `GlEffectsFrameProcessor.flush()`
1. Flush the `FrameProcessingTaskExecutor`, so that after it returns, all tasks queued before calling `flush()` completes
2. Post to `FrameProcessingTaskExecutor`, to flush the `FinalMatrixTextureProcessorWrapper`
3. Flushing the `FinalMatrixTextureProcessorWrapper` will propagate flushing through, via the `ChainingGlTextureProcessorListener`
Startblock:
has LGTM from christosts
and then
add reviewer andrewlewis
PiperOrigin-RevId: 506296469
The eotf is needed so that overlay (image) colors are correctly interpreted and mixed the linear video colors.
Also replaces the 100winners.png with "homemade" image file.
Added GlEffectsFrameProcessor test to justify that the color looks correct at the end of frame processing.
PiperOrigin-RevId: 506290309
For HLG input in transformer, FinalWrapper is configured to only output HLG to
encoder. But since DebugPreview is configured to take PQ for HDR content, the
color will not look correct.
This CL allows overriding the MatrixTP output transfer function, so
that FinalWrapper can output
- HLG to encoder
- PQ to debug preview
PiperOrigin-RevId: 506022840
