yggdrasil75/stupidsimcpp
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custom compression is fun.

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yggdrasil75
2025-11-16 07:35:18 -05:00
parent 7ae75c60d5
commit 10b2cdd11f
3 changed files with 163 additions and 390 deletions
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57
tests/g2chromatic2.cpp
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@@ -13,7 +13,7 @@
struct AnimationConfig {
int width = 1024;
int height = 1024;
int totalFrames = 480;
int totalFrames = 4800;
float fps = 30.0f;
int numSeeds = 8;
};
@@ -70,13 +70,11 @@ void expandPixel(Grid2& grid, AnimationConfig config, std::vector<std::tuple<siz
TIME_FUNCTION;
std::vector<std::tuple<size_t, Vec2, Vec4>> newseeds;
std::unordered_set<size_t> visitedThisFrame;
for (const auto& seed : seeds) {
visitedThisFrame.insert(std::get<0>(seed));
}
for (const std::tuple<size_t, Vec2, Vec4>& seed : seeds) {
size_t id = std::get<0>(seed);
Vec2 seedPOS = std::get<1>(seed);
@@ -88,7 +86,6 @@ void expandPixel(Grid2& grid, AnimationConfig config, std::vector<std::tuple<siz
}
visitedThisFrame.insert(neighbor);
Vec2 neipos = grid.getPositionID(neighbor);
Vec4 neighborColor = grid.getColor(neighbor);
float distance = seedPOS.distance(neipos);
@@ -121,8 +118,34 @@ bool exportavi(std::vector<frame> frames, AnimationConfig config) {
std::string filename = "output/chromatic_transformation.avi";
std::cout << "Frame count: " << frames.size() << std::endl;
//std::cout << "Frame size: " << (frames.empty() ? 0 : frames[0].size()) << std::endl;
std::cout << "Width: " << config.width << ", Height: " << config.height << std::endl;
// Log compression statistics for all frames
std::cout << "\n=== Frame Compression Statistics ===" << std::endl;
size_t totalOriginalSize = 0;
size_t totalCompressedSize = 0;
int compressedFrameCount = 0;
for (int i = 0; i < frames.size(); ++i) {
totalOriginalSize += frames[i].getSourceSize();
totalCompressedSize += frames[i].getCompressedSize();
compressedFrameCount++;
}
// Print summary
//if (compressedFrameCount > 0) {
double overallRatio = static_cast<double>(totalOriginalSize) / totalCompressedSize;
double overallSavings = (1.0 - 1.0/overallRatio) * 100.0;
std::cout << "\n=== Overall Compression Summary ===" << std::endl;
std::cout << "Total frames: " << frames.size() << std::endl;
std::cout << "Compressed frames: " << compressedFrameCount << std::endl;
std::cout << "Total original size: " << totalOriginalSize << " bytes ("
<< std::fixed << std::setprecision(2) << (totalOriginalSize / (1024.0 * 1024.0)) << " MB)" << std::endl;
std::cout << "Total compressed size: " << totalCompressedSize << " bytes ("
<< std::fixed << std::setprecision(2) << (totalCompressedSize / (1024.0 * 1024.0)) << " MB)" << std::endl;
std::cout << "Overall compression ratio: " << std::fixed << std::setprecision(2) << overallRatio << ":1" << std::endl;
std::cout << "Overall space savings: " << std::fixed << std::setprecision(1) << overallSavings << "%" << std::endl;
//}
std::filesystem::path dir = "output";
if (!std::filesystem::exists(dir)) {
@@ -132,14 +155,15 @@ bool exportavi(std::vector<frame> frames, AnimationConfig config) {
}
}
bool success = AVIWriter::saveAVIFromCompressedFrames(filename,frames,frames[0].getWidth()+1,frames[0].getHeight()+1, config.fps);
//bool success = AVIWriter::saveAVI(filename, frames, config.width+1, config.height+1, config.fps);
bool success = AVIWriter::saveAVIFromCompressedFrames(filename, frames, frames[0].getWidth(), frames[0].getHeight(), config.fps);
if (success) {
// Check if file actually exists
if (std::filesystem::exists(filename)) {
auto file_size = std::filesystem::file_size(filename);
std::cout << "\nAVI file created successfully: " << filename
<< " (" << file_size << " bytes, "
<< std::fixed << std::setprecision(2) << (file_size / (1024.0 * 1024.0)) << " MB)" << std::endl;
}
} else {
std::cout << "Failed to save AVI file!" << std::endl;
@@ -152,20 +176,21 @@ int main() {
AnimationConfig config;
Grid2 grid = setup(config);
//grid.updateNeighborMap();
Preview(grid);
std::vector<std::tuple<size_t, Vec2, Vec4>> seeds = pickSeeds(grid,config);
//std::vector<std::vector<uint8_t>> frames;
std::vector<frame> frames;
for (int i = 0; i < config.totalFrames; ++i){
std::cout << "Processing bgrframe " << i + 1 << "/" << config.totalFrames << std::endl;
std::cout << "Processing frame " << i + 1 << "/" << config.totalFrames << std::endl;
expandPixel(grid,config,seeds);
int width;
int height;
//std::vector<uint8_t> bgrframe;
frame bgrframe = grid.getGridAsFrame(frame::colormap::BGR);
//grid.getGridAsBGR(width,height,bgrframe);
// Print compression info for this frame
if (i % 10 == 0 ) {
bgrframe.printCompressionStats();
//(bgrframe, i + 1);
}
frames.push_back(bgrframe);
}