feat: support JPEG compression (#583)

This commit is contained in:
vmobilis
2025-02-05 11:18:02 +03:00
committed by GitHub
parent 2535ad5a43
commit d46ed5e184
2 changed files with 49 additions and 10 deletions

View File

@@ -1057,16 +1057,41 @@ int main(int argc, const char* argv[]) {
}
}
size_t last = params.output_path.find_last_of(".");
std::string dummy_name = last != std::string::npos ? params.output_path.substr(0, last) : params.output_path;
std::string dummy_name, ext, lc_ext;
bool is_jpg;
size_t last = params.output_path.find_last_of(".");
size_t last_path = std::min(params.output_path.find_last_of("/"),
params.output_path.find_last_of("\\"));
if (last != std::string::npos // filename has extension
&& (last_path == std::string::npos || last > last_path)) {
dummy_name = params.output_path.substr(0, last);
ext = lc_ext = params.output_path.substr(last);
std::transform(ext.begin(), ext.end(), lc_ext.begin(), ::tolower);
is_jpg = lc_ext == ".jpg" || lc_ext == ".jpeg" || lc_ext == ".jpe";
} else {
dummy_name = params.output_path;
ext = lc_ext = "";
is_jpg = false;
}
// appending ".png" to absent or unknown extension
if (!is_jpg && lc_ext != ".png") {
dummy_name += ext;
ext = ".png";
}
for (int i = 0; i < params.batch_count; i++) {
if (results[i].data == NULL) {
continue;
}
std::string final_image_path = i > 0 ? dummy_name + "_" + std::to_string(i + 1) + ".png" : dummy_name + ".png";
stbi_write_png(final_image_path.c_str(), results[i].width, results[i].height, results[i].channel,
results[i].data, 0, get_image_params(params, params.seed + i).c_str());
printf("save result image to '%s'\n", final_image_path.c_str());
std::string final_image_path = i > 0 ? dummy_name + "_" + std::to_string(i + 1) + ext : dummy_name + ext;
if(is_jpg) {
stbi_write_jpg(final_image_path.c_str(), results[i].width, results[i].height, results[i].channel,
results[i].data, 90, get_image_params(params, params.seed + i).c_str());
printf("save result JPEG image to '%s'\n", final_image_path.c_str());
} else {
stbi_write_png(final_image_path.c_str(), results[i].width, results[i].height, results[i].channel,
results[i].data, 0, get_image_params(params, params.seed + i).c_str());
printf("save result PNG image to '%s'\n", final_image_path.c_str());
}
free(results[i].data);
results[i].data = NULL;
}