Android: Add tests for VideoFrame.Buffer.toI420() and cropAndScale()

This CL adds tests that are primarily targeting
VideoFrame.Buffer.toI420() and cropAndScale(), but includes the whole
chain for YuvConverter, GlRectDrawer, and VideoFrameDrawer.

It also includes a couple of fixes to bugs that were exposed by the new
tests.

Bug: webrtc:9186, webrtc:9391
Change-Id: I5eb62979a8fd8def28c3cb2e82dcede57c42216f
Reviewed-on: https://webrtc-review.googlesource.com/83163
Commit-Queue: Magnus Jedvert <magjed@webrtc.org>
Reviewed-by: Sami Kalliomäki <sakal@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#23611}
This commit is contained in:
Magnus Jedvert
2018-06-14 12:23:01 +02:00
committed by Commit Bot
parent d1f970dc43
commit 6507054db1
8 changed files with 597 additions and 30 deletions

View File

@ -85,7 +85,10 @@ public class TextureBufferImpl implements VideoFrame.TextureBuffer {
public VideoFrame.Buffer cropAndScale(
int cropX, int cropY, int cropWidth, int cropHeight, int scaleWidth, int scaleHeight) {
final Matrix newMatrix = new Matrix(transformMatrix);
newMatrix.preTranslate(cropX / (float) width, cropY / (float) height);
// In WebRTC, Y=0 is the top row, while in OpenGL Y=0 is the bottom row. This means that the Y
// direction is effectively reversed.
final int cropYFromBottom = height - (cropY + cropHeight);
newMatrix.preTranslate(cropX / (float) width, cropYFromBottom / (float) height);
newMatrix.preScale(cropWidth / (float) width, cropHeight / (float) height);
retain();