This reverts commit 9558ab41eb4de39c62cda2dd1e559f5814a3a0c7. Reason for revert: speculative revert: breaks downstream project Original change's description: > remove NV12 to I420 conversion in webrtc AV1 Encoder. > > libaom supports for NV12 inputs for encoding av1 stream. It will reduce > unnecessary conversion from NV12 to I420 format. > (https://bugs.chromium.org/p/aomedia/issues/detail?id=3232&q=3232&can=2) > > Bug: webrtc:13746 > Change-Id: I1407227d1690b3f63cb6581eef5d587e5f418892 > Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/251920 > Reviewed-by: Erik Språng <sprang@webrtc.org> > Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org> > Commit-Queue: Shuhai Peng <shuhai.peng@intel.com> > Cr-Commit-Position: refs/heads/main@{#36111} Bug: webrtc:13746 Change-Id: Ie928f7f5b5992337a9d186fa70b7fdec20a33f00 No-Presubmit: true No-Tree-Checks: true No-Try: true Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/253122 Bot-Commit: rubber-stamper@appspot.gserviceaccount.com <rubber-stamper@appspot.gserviceaccount.com> Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org> Commit-Queue: Artem Titov <titovartem@webrtc.org> Owners-Override: Artem Titov <titovartem@webrtc.org> Owners-Override: Mirko Bonadei <mbonadei@webrtc.org> Cr-Commit-Position: refs/heads/main@{#36114}