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/*
* Copyright (C) 2012 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.
*/
#include <time.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include "mosaic/Mosaic.h"
#include "mosaic/ImageUtils.h"
#define MAX_FRAMES 200
#define KERNEL_ITERATIONS 10
const int blendingType = Blend::BLEND_TYPE_HORZ;
const int stripType = Blend::STRIP_TYPE_WIDE;
ImageType yvuFrames[MAX_FRAMES];
int loadImages(const char* basename, int &width, int &height)
{
char filename[512];
struct stat filestat;
int i;
for (i = 0; i < MAX_FRAMES; i++) {
sprintf(filename, "%s_%03d.ppm", basename, i + 1);
if (stat(filename, &filestat) != 0) break;
ImageType rgbFrame = ImageUtils::readBinaryPPM(filename, width, height);
yvuFrames[i] = ImageUtils::allocateImage(width, height,
ImageUtils::IMAGE_TYPE_NUM_CHANNELS);
ImageUtils::rgb2yvu(yvuFrames[i], rgbFrame, width, height);
ImageUtils::freeImage(rgbFrame);
}
return i;
}
int main(int argc, char **argv)
{
struct timespec t1, t2, t3;
int width, height;
float totalElapsedTime = 0;
const char *basename;
const char *filename;
if (argc != 3) {
printf("Usage: %s input_dir output_filename\n", argv[0]);
return 0;
} else {
basename = argv[1];
filename = argv[2];
}
// Load the images outside the computational kernel
int totalFrames = loadImages(basename, width, height);
if (totalFrames == 0) {
printf("Image files not found. Make sure %s exists.\n",
basename);
return 1;
}
printf("%d frames loaded\n", totalFrames);
// Interesting stuff is here
for (int iteration = 0; iteration < KERNEL_ITERATIONS; iteration++) {
Mosaic mosaic;
mosaic.initialize(blendingType, stripType, width, height, -1, false, 0);
clock_gettime(CLOCK_MONOTONIC, &t1);
for (int i = 0; i < totalFrames; i++) {
mosaic.addFrame(yvuFrames[i]);
}
clock_gettime(CLOCK_MONOTONIC, &t2);
float progress = 0.0;
bool cancelComputation = false;
mosaic.createMosaic(progress, cancelComputation);
int mosaicWidth, mosaicHeight;
ImageType resultYVU = mosaic.getMosaic(mosaicWidth, mosaicHeight);
ImageType imageRGB = ImageUtils::allocateImage(
mosaicWidth, mosaicHeight, ImageUtils::IMAGE_TYPE_NUM_CHANNELS);
clock_gettime(CLOCK_MONOTONIC, &t3);
float elapsedTime =
(t3.tv_sec - t1.tv_sec) + (t3.tv_nsec - t1.tv_nsec)/1e9;
float addImageTime =
(t2.tv_sec - t1.tv_sec) + (t2.tv_nsec - t1.tv_nsec)/1e9;
float stitchImageTime =
(t3.tv_sec - t2.tv_sec) + (t3.tv_nsec - t2.tv_nsec)/1e9;
totalElapsedTime += elapsedTime;
printf("Iteration %d: %dx%d moasic created: "
"%.2f seconds (%.2f + %.2f)\n",
iteration, mosaicWidth, mosaicHeight,
elapsedTime, addImageTime, stitchImageTime);
// Write the output only once for correctness check
if (iteration == 0) {
ImageUtils::yvu2rgb(imageRGB, resultYVU, mosaicWidth,
mosaicHeight);
ImageUtils::writeBinaryPPM(imageRGB, filename, mosaicWidth,
mosaicHeight);
}
}
printf("Total elapsed time: %.2f seconds\n", totalElapsedTime);
return 0;
}
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