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/*
* Copyright (C) 2011 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.
*/
///////////////////////////////////////////////////
// Mosaic.pp
// S.O. # :
// Author(s): zkira
// $Id: Mosaic.cpp,v 1.20 2011/06/24 04:22:14 mbansal Exp $
#include <stdio.h>
#include <string.h>
#include "Mosaic.h"
#include "trsMatrix.h"
Mosaic::Mosaic()
{
initialized = false;
imageMosaicYVU = NULL;
frames_size = 0;
max_frames = 200;
}
Mosaic::~Mosaic()
{
for (int i = 0; i < frames_size; i++)
{
if (frames[i])
delete frames[i];
}
delete frames;
if (aligner != NULL)
delete aligner;
if (blender != NULL)
delete blender;
}
int Mosaic::initialize(int blendingType, int width, int height, int nframes, bool quarter_res, float thresh_still)
{
this->blendingType = blendingType;
this->width = width;
this->height = height;
mosaicWidth = mosaicHeight = 0;
imageMosaicYVU = NULL;
frames = new MosaicFrame *[max_frames];
if(nframes>-1)
{
for(int i=0; i<nframes; i++)
{
frames[i] = new MosaicFrame(this->width,this->height,false); // Do no allocate memory for YUV data
}
}
else
{
for(int i=0; i<max_frames; i++)
{
frames[i] = NULL;
}
}
LOGIE("Initialize %d %d\n", width, height);
LOGIE("Frame width %d,%d\n", width, height);
LOGIE("Max num frames %d\n", max_frames);
aligner = new Align();
aligner->initialize(width, height,quarter_res,thresh_still);
if (blendingType == Blend::BLEND_TYPE_FULL ||
blendingType == Blend::BLEND_TYPE_PAN ||
blendingType == Blend::BLEND_TYPE_CYLPAN ||
blendingType == Blend::BLEND_TYPE_HORZ) {
blender = new Blend();
blender->initialize(blendingType, width, height);
} else {
blender = NULL;
LOGIE("Error: Unknown blending type %d\n",blendingType);
return MOSAIC_RET_ERROR;
}
initialized = true;
return MOSAIC_RET_OK;
}
int Mosaic::addFrameRGB(ImageType imageRGB)
{
ImageType imageYVU;
// Convert to YVU24 which is used by blending
imageYVU = ImageUtils::allocateImage(this->width, this->height, ImageUtils::IMAGE_TYPE_NUM_CHANNELS);
ImageUtils::rgb2yvu(imageYVU, imageRGB, width, height);
return addFrame(imageYVU);
}
int Mosaic::addFrame(ImageType imageYVU)
{
if(frames[frames_size]==NULL)
frames[frames_size] = new MosaicFrame(this->width,this->height,false);
MosaicFrame *frame = frames[frames_size];
frame->image = imageYVU;
int align_flag = Align::ALIGN_RET_OK;
// Add frame to aligner
if (aligner != NULL)
{
// Note aligner takes in RGB images
printf("Adding frame to aligner...\n");
align_flag = aligner->addFrame(frame->image);
aligner->getLastTRS(frame->trs);
printf("Frame width %d,%d\n", frame->width, frame->height);
if (frames_size >= max_frames)
{
fprintf(stderr, "WARNING: More frames than preallocated, ignoring. Increase maximum number of frames (-f <max_frames>) to avoid this\n");
return MOSAIC_RET_ERROR;
}
else if(align_flag == Align::ALIGN_RET_OK)
{
frames_size++;
return MOSAIC_RET_OK;
}
else
{
return MOSAIC_RET_ERROR;
}
}
else
{
return MOSAIC_RET_ERROR;
}
}
int Mosaic::createMosaic()
{
printf("Creating mosaic\n");
if (blendingType == Blend::BLEND_TYPE_PAN)
{
balanceRotations();
}
// Blend the mosaic (alignment has already been done)
if (blender != NULL)
{
blender->runBlend((MosaicFrame **) frames, frames_size, imageMosaicYVU, mosaicWidth, mosaicHeight);
}
return MOSAIC_RET_OK;
}
ImageType Mosaic::getMosaic(int &width, int &height)
{
width = mosaicWidth;
height = mosaicHeight;
return imageMosaicYVU;
}
int Mosaic::balanceRotations()
{
// Normalize to the mean angle of rotation (Smiley face)
double sineAngle = 0.0;
for (int i = 0; i < frames_size; i++) sineAngle += frames[i]->trs[0][1];
sineAngle /= frames_size;
// Calculate the cosineAngle (1 - sineAngle*sineAngle) = cosineAngle*cosineAngle
double cosineAngle = sqrt(1.0 - sineAngle*sineAngle);
double m[3][3] = {
{ cosineAngle, -sineAngle, 0 },
{ sineAngle, cosineAngle, 0},
{ 0, 0, 1}};
double tmp[3][3];
for (int i = 0; i < frames_size; i++) {
memcpy(tmp, frames[i]->trs, sizeof(tmp));
mult33d(frames[i]->trs, m, tmp);
}
return MOSAIC_RET_OK;
}
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