| /** |
| * Copyright (c) 2019, The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package android.hardware.graphics.common; |
| |
| /** |
| * Used by IAllocator/IMapper (gralloc) to describe standard chroma siting |
| * @hide |
| */ |
| @VintfStability |
| @Backing(type="long") |
| enum ChromaSiting { |
| /* This format does not have chroma siting. */ |
| NONE = 0, |
| |
| /* This format has chroma siting but the type being used is unknown. */ |
| UNKNOWN = 1, |
| |
| /* Cb and Cr are sited interstitially, halfway between alternate luma samples. |
| * This is used by 4:2:0 for JPEG/JFIF, H.261, MPEG-1. */ |
| SITED_INTERSTITIAL = 2, |
| |
| /* Cb and Cr are horizontally sited coincident with a luma sample. |
| * Cb and Cr are vertically sited interstitially. |
| * This is used by 4:2:0 for MPEG-2 frame pictures. */ |
| COSITED_HORIZONTAL = 3, |
| |
| /* Cb and Cr are horizontally sited interstitially with a luma sample. |
| * Cb and Cr are vertically sited coincident. */ |
| COSITED_VERTICAL = 4, |
| |
| /* Cb and Cr are both horizontally & vertically sited coincident |
| * with a luma sample. */ |
| COSITED_BOTH = 5, |
| } |