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feat: add sd-server API support for steps, sampler and scheduler #1173

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feat: add sd-server API support for steps, sampler and scheduler #1173

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332aab7
feat: sd-server API support for steps, sampler and scheduler
wbruna Jan 4, 2026
fe3ae56
limit step count to 100
wbruna Jan 11, 2026
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20 changes: 20 additions & 0 deletions examples/common/common.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1594,10 +1594,30 @@ struct SDGenerationParams {
load_if_exists("skip_layers", skip_layers);
load_if_exists("high_noise_skip_layers", high_noise_skip_layers);

load_if_exists("steps", sample_params.sample_steps);
load_if_exists("high_noise_steps", high_noise_sample_params.sample_steps);
load_if_exists("cfg_scale", sample_params.guidance.txt_cfg);
load_if_exists("img_cfg_scale", sample_params.guidance.img_cfg);
load_if_exists("guidance", sample_params.guidance.distilled_guidance);

auto load_sampler_if_exists = [&](const char* key, enum sample_method_t& out) {
if (j.contains(key) && j[key].is_string()) {
enum sample_method_t tmp = str_to_sample_method(j[key].get<std::string>().c_str());
if (tmp != SAMPLE_METHOD_COUNT) {
out = tmp;
}
}
};
load_sampler_if_exists("sample_method", sample_params.sample_method);
load_sampler_if_exists("high_noise_sample_method", high_noise_sample_params.sample_method);

if (j.contains("scheduler") && j["scheduler"].is_string()) {
enum scheduler_t tmp = str_to_scheduler(j["scheduler"].get<std::string>().c_str());
if (tmp != SCHEDULER_COUNT) {
sample_params.scheduler = tmp;
}
}

return true;
}

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6 changes: 6 additions & 0 deletions examples/server/main.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -420,6 +420,9 @@ int main(int argc, const char** argv) {
return;
}

if (gen_params.sample_params.sample_steps > 100)
gen_params.sample_params.sample_steps = 100;

if (!gen_params.process_and_check(IMG_GEN, "")) {
res.status = 400;
res.set_content(R"({"error":"invalid params"})", "application/json");
Expand Down Expand Up @@ -598,6 +601,9 @@ int main(int argc, const char** argv) {
return;
}

if (gen_params.sample_params.sample_steps > 100)
gen_params.sample_params.sample_steps = 100;

if (!gen_params.process_and_check(IMG_GEN, "")) {
res.status = 400;
res.set_content(R"({"error":"invalid params"})", "application/json");
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