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Transformer GL: Update TODOs.

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Document some suboptimal things, and remove TODOs that were
fixed already or no longer relevant. Comment-only change.

PiperOrigin-RevId: 428749344
This commit is contained in:
huangdarwin 2022-02-15 12:54:20 +00:00 committed by Ian Baker
parent 8b01d07512
commit 78b461f94c
3 changed files with 9 additions and 10 deletions
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5
demos/transformer/src/main/java/androidx/media3/demo/transformer/TransformerActivity.java
View File

@ -248,8 +248,9 @@ public final class TransformerActivity extends AppCompatActivity {
float translateX = bundle.getFloat(ConfigurationActivity.TRANSLATE_X, /* defaultValue= */ 0);
float translateY = bundle.getFloat(ConfigurationActivity.TRANSLATE_Y, /* defaultValue= */ 0);
// TODO(b/213198690): Get resolution for aspect ratio and scale all translations' translateX
// by this aspect ratio.
// TODO(b/201293185): Implement an AdvancedFrameEditor to handle translation, as the current
// transformationMatrix is automatically adjusted to focus on the original pixels and
// effectively undo translations.
transformationMatrix.postTranslate(translateX, translateY);
float scaleX = bundle.getFloat(ConfigurationActivity.SCALE_X, /* defaultValue= */ 1);

11
libraries/transformer/src/main/java/androidx/media3/transformer/TransformationRequest.java
View File

@ -76,14 +76,9 @@ public final class TransformationRequest {
* @return This builder.
*/
public Builder setTransformationMatrix(Matrix transformationMatrix) {
// TODO(b/201293185): After {@link #setResolution} supports arbitrary resolutions,
// allow transformations to change the resolution, by scaling to the appropriate min/max
// values. This will also be required to create the VertexTransformation class, in order to
// have aspect ratio helper methods (which require resolution to change).
// TODO(b/213198690): Consider changing how transformationMatrix is applied, so that
// dimensions will be from -1 to 1 on both x and y axes, but transformations will be applied
// in a predictable manner.
// TODO(b/201293185): Implement an AdvancedFrameEditor to handle translation, as the current
// transformationMatrix is automatically adjusted to focus on the original pixels and
// effectively undo translations.
this.transformationMatrix = new Matrix(transformationMatrix);
return this;
}

3
libraries/transformer/src/main/java/androidx/media3/transformer/TransformerVideoRenderer.java
View File

@ -115,6 +115,9 @@ import org.checkerframework.checker.nullness.qual.RequiresNonNull;
return false;
}
if (!transformationRequest.transformationMatrix.isIdentity()) {
// TODO(b/201293185, b/214010296): Move FrameProcessor transformationMatrix calculation /
// adjustments out of the VideoTranscodingSamplePipeline, so that we can skip transcoding when
// adjustments result in identity matrices.
return false;
}
return true;