blob: 712f1181d9cde8716d9048aa4eae1277129f892d [file] [log] [blame]
** 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
** Unless required by applicable law or agreed to in writing, software
** distributed under the License is distributed on an "AS IS" BASIS,
** See the License for the specific language governing permissions and
** limitations under the License.
#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.
// In a VideoFrame struct stored in IMemory, frame data and ICC data
// come after the VideoFrame structure. Their locations can be retrieved
// by getFlattenedData() and getFlattenedIccData();
class VideoFrame
// Construct a VideoFrame object with the specified parameters,
// will calculate frame buffer size if |hasData| is set to true.
VideoFrame(uint32_t width, uint32_t height,
uint32_t displayWidth, uint32_t displayHeight,
uint32_t tileWidth, uint32_t tileHeight,
uint32_t angle, uint32_t bpp, bool hasData, size_t iccSize):
mWidth(width), mHeight(height),
mDisplayWidth(displayWidth), mDisplayHeight(displayHeight),
mTileWidth(tileWidth), mTileHeight(tileHeight),
mRotationAngle(angle), mBytesPerPixel(bpp), mRowBytes(bpp * width),
mSize(hasData ? (bpp * width * height) : 0),
mIccSize(iccSize), mReserved(0) {
void init(const VideoFrame& copy, const void* iccData, size_t iccSize) {
*this = copy;
if (mIccSize == iccSize && iccSize > 0 && iccData != NULL) {
memcpy(getFlattenedIccData(), iccData, iccSize);
} else {
mIccSize = 0;
// 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
uint32_t mTileWidth; // Tile width (0 if image doesn't have grid)
uint32_t mTileHeight; // Tile height (0 if image doesn't have grid)
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 of frame data
uint32_t mIccSize; // Number of bytes of ICC data
uint32_t mReserved; // (padding to make mData 64-bit aligned)
}; // namespace android