| /* |
| ** |
| ** Copyright (C) 2008 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. |
| */ |
| |
| #ifndef ANDROID_VIDEO_FRAME_H |
| #define ANDROID_VIDEO_FRAME_H |
| |
| #include <stdint.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <utils/Log.h> |
| |
| namespace android { |
| |
| // Represents a color converted (RGB-based) video frame |
| // with bitmap pixels stored in FrameBuffer |
| class VideoFrame |
| { |
| public: |
| // Construct a VideoFrame object with the specified parameters, |
| // will allocate frame buffer if |allocate| is set to true, will |
| // allocate buffer to hold ICC data if |iccData| and |iccSize| |
| // indicate its presence. |
| VideoFrame(uint32_t width, uint32_t height, |
| uint32_t displayWidth, uint32_t displayHeight, |
| uint32_t angle, uint32_t bpp, bool allocate, |
| const void *iccData, size_t iccSize): |
| mWidth(width), mHeight(height), |
| mDisplayWidth(displayWidth), mDisplayHeight(displayHeight), |
| mRotationAngle(angle), mBytesPerPixel(bpp), mRowBytes(bpp * width), |
| mSize(0), mIccSize(0), mReserved(0), mData(0), mIccData(0) { |
| if (allocate) { |
| mSize = mRowBytes * mHeight; |
| mData = new uint8_t[mSize]; |
| if (mData == NULL) { |
| mSize = 0; |
| } |
| } |
| |
| if (iccData != NULL && iccSize > 0) { |
| mIccSize = iccSize; |
| mIccData = new uint8_t[iccSize]; |
| if (mIccData != NULL) { |
| memcpy(mIccData, iccData, iccSize); |
| } else { |
| mIccSize = 0; |
| } |
| } |
| } |
| |
| // Deep copy of both the information fields and the frame data |
| VideoFrame(const VideoFrame& copy) { |
| copyInfoOnly(copy); |
| |
| mSize = copy.mSize; |
| mData = NULL; // initialize it first |
| if (mSize > 0 && copy.mData != NULL) { |
| mData = new uint8_t[mSize]; |
| if (mData != NULL) { |
| memcpy(mData, copy.mData, mSize); |
| } else { |
| mSize = 0; |
| } |
| } |
| |
| mIccSize = copy.mIccSize; |
| mIccData = NULL; // initialize it first |
| if (mIccSize > 0 && copy.mIccData != NULL) { |
| mIccData = new uint8_t[mIccSize]; |
| if (mIccData != NULL) { |
| memcpy(mIccData, copy.mIccData, mIccSize); |
| } else { |
| mIccSize = 0; |
| } |
| } |
| } |
| |
| ~VideoFrame() { |
| if (mData != 0) { |
| delete[] mData; |
| } |
| if (mIccData != 0) { |
| delete[] mIccData; |
| } |
| } |
| |
| // Copy |copy| to a flattened VideoFrame in IMemory, 'this' must point to |
| // a chunk of memory back by IMemory of size at least getFlattenedSize() |
| // of |copy|. |
| void copyFlattened(const VideoFrame& copy) { |
| copyInfoOnly(copy); |
| |
| mSize = copy.mSize; |
| mData = NULL; // initialize it first |
| if (copy.mSize > 0 && copy.mData != NULL) { |
| memcpy(getFlattenedData(), copy.mData, copy.mSize); |
| } |
| |
| mIccSize = copy.mIccSize; |
| mIccData = NULL; // initialize it first |
| if (copy.mIccSize > 0 && copy.mIccData != NULL) { |
| memcpy(getFlattenedIccData(), copy.mIccData, copy.mIccSize); |
| } |
| } |
| |
| // Calculate the flattened size to put it in IMemory |
| size_t getFlattenedSize() const { |
| return sizeof(VideoFrame) + mSize + mIccSize; |
| } |
| |
| // Get the pointer to the frame data in a flattened VideoFrame in IMemory |
| uint8_t* getFlattenedData() const { |
| return (uint8_t*)this + sizeof(VideoFrame); |
| } |
| |
| // Get the pointer to the ICC data in a flattened VideoFrame in IMemory |
| uint8_t* getFlattenedIccData() const { |
| return (uint8_t*)this + sizeof(VideoFrame) + mSize; |
| } |
| |
| // Intentional public access modifier: |
| uint32_t mWidth; // Decoded image width before rotation |
| uint32_t mHeight; // Decoded image height before rotation |
| uint32_t mDisplayWidth; // Display width before rotation |
| uint32_t mDisplayHeight; // Display height before rotation |
| int32_t mRotationAngle; // Rotation angle, clockwise, should be multiple of 90 |
| uint32_t mBytesPerPixel; // Number of bytes per pixel |
| uint32_t mRowBytes; // Number of bytes per row before rotation |
| uint32_t mSize; // Number of bytes in mData |
| uint32_t mIccSize; // Number of bytes in mIccData |
| uint32_t mReserved; // (padding to make mData 64-bit aligned) |
| |
| // mData should be 64-bit aligned to prevent additional padding |
| uint8_t* mData; // Actual binary data |
| // pad structure so it's the same size on 64-bit and 32-bit |
| char mPadding[8 - sizeof(mData)]; |
| |
| // mIccData should be 64-bit aligned to prevent additional padding |
| uint8_t* mIccData; // Actual binary data |
| // pad structure so it's the same size on 64-bit and 32-bit |
| char mIccPadding[8 - sizeof(mIccData)]; |
| |
| private: |
| // |
| // Utility methods used only within VideoFrame struct |
| // |
| |
| // Copy the information fields only |
| void copyInfoOnly(const VideoFrame& copy) { |
| mWidth = copy.mWidth; |
| mHeight = copy.mHeight; |
| mDisplayWidth = copy.mDisplayWidth; |
| mDisplayHeight = copy.mDisplayHeight; |
| mRotationAngle = copy.mRotationAngle; |
| mBytesPerPixel = copy.mBytesPerPixel; |
| mRowBytes = copy.mRowBytes; |
| } |
| }; |
| |
| }; // namespace android |
| |
| #endif // ANDROID_VIDEO_FRAME_H |