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93 lines
3.6 KiB
93 lines
3.6 KiB
4 months ago
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/*
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**
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** Copyright (C) 2008 The Android Open Source Project
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**
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** Licensed under the Apache License, Version 2.0 (the "License");
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** you may not use this file except in compliance with the License.
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** You may obtain a copy of the License at
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**
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** http://www.apache.org/licenses/LICENSE-2.0
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**
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** Unless required by applicable law or agreed to in writing, software
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** distributed under the License is distributed on an "AS IS" BASIS,
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** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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** See the License for the specific language governing permissions and
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** limitations under the License.
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*/
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#ifndef ANDROID_VIDEO_FRAME_H
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#define ANDROID_VIDEO_FRAME_H
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <utils/Log.h>
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namespace android {
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// Represents a color converted (RGB-based) video frame with bitmap
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// pixels stored in FrameBuffer.
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// In a VideoFrame struct stored in IMemory, frame data and ICC data
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// come after the VideoFrame structure. Their locations can be retrieved
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// by getFlattenedData() and getFlattenedIccData();
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class VideoFrame
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{
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public:
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// Construct a VideoFrame object with the specified parameters,
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// will calculate frame buffer size if |hasData| is set to true.
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VideoFrame(uint32_t width, uint32_t height,
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uint32_t displayWidth, uint32_t displayHeight,
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uint32_t tileWidth, uint32_t tileHeight,
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uint32_t angle, uint32_t bpp, bool hasData, size_t iccSize):
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mWidth(width), mHeight(height),
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mDisplayWidth(displayWidth), mDisplayHeight(displayHeight),
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mTileWidth(tileWidth), mTileHeight(tileHeight), mDurationUs(0),
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mRotationAngle(angle), mBytesPerPixel(bpp), mRowBytes(bpp * width),
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mSize(hasData ? (bpp * width * height) : 0),
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mIccSize(iccSize), mReserved(0) {
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}
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void init(const VideoFrame& copy, const void* iccData, size_t iccSize) {
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*this = copy;
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if (mIccSize == iccSize && iccSize > 0 && iccData != NULL) {
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memcpy(getFlattenedIccData(), iccData, iccSize);
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} else {
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mIccSize = 0;
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}
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}
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// Calculate the flattened size to put it in IMemory
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size_t getFlattenedSize() const {
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return sizeof(VideoFrame) + mSize + mIccSize;
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}
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// Get the pointer to the frame data in a flattened VideoFrame in IMemory
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uint8_t* getFlattenedData() const {
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return (uint8_t*)this + sizeof(VideoFrame);
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}
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// Get the pointer to the ICC data in a flattened VideoFrame in IMemory
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uint8_t* getFlattenedIccData() const {
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return (uint8_t*)this + sizeof(VideoFrame) + mSize;
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}
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// Intentional public access modifier:
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uint32_t mWidth; // Decoded image width before rotation
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uint32_t mHeight; // Decoded image height before rotation
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uint32_t mDisplayWidth; // Display width before rotation
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uint32_t mDisplayHeight; // Display height before rotation
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uint32_t mTileWidth; // Tile width (0 if image doesn't have grid)
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uint32_t mTileHeight; // Tile height (0 if image doesn't have grid)
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int64_t mDurationUs; // Frame duration in microseconds
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int32_t mRotationAngle; // Rotation angle, clockwise, should be multiple of 90
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uint32_t mBytesPerPixel; // Number of bytes per pixel
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uint32_t mRowBytes; // Number of bytes per row before rotation
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uint32_t mSize; // Number of bytes of frame data
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uint32_t mIccSize; // Number of bytes of ICC data
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uint32_t mReserved; // (padding to make mData 64-bit aligned)
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};
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}; // namespace android
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#endif // ANDROID_VIDEO_FRAME_H
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