mirror of
https://chromium.googlesource.com/libyuv/libyuv
synced 2025-12-08 01:36:47 +08:00
a77d615e10
When doing 90 or 270 degrees rotation we need to do a rotate&scale of the UV planes, as there are no helper optimized functions to do this, we use the Y plane as temporal memory and perform each of the transforms independently: First U plane is rotated, putting the result in the Y plane. After the rotation, the output has double the samples horizontally and half the samples vertically, so it is scaled into the final U plane. Same process is done with the V plane. Last the Y plane that can be just rotated without scaling. It would be great to have an optimized version for this, but maybe this is helpfull for triggering the discussions. Bug: libyuv:926 Change-Id: I188af103c4d0e3f9522021b4bf2b63c9d5de8b93 Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/3568424 Reviewed-by: Frank Barchard <fbarchard@chromium.org> Commit-Queue: Frank Barchard <fbarchard@chromium.org> |
||
|---|---|---|
| .. | ||
| testdata | ||
| basictypes_test.cc | ||
| color_test.cc | ||
| compare_test.cc | ||
| convert_test.cc | ||
| cpu_test.cc | ||
| cpu_thread_test.cc | ||
| math_test.cc | ||
| planar_test.cc | ||
| rotate_argb_test.cc | ||
| rotate_test.cc | ||
| scale_argb_test.cc | ||
| scale_rgb_test.cc | ||
| scale_test.cc | ||
| scale_uv_test.cc | ||
| unit_test.cc | ||
| unit_test.h | ||
| video_common_test.cc | ||