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288 lines (276 loc) · 13.9 KB
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#include "engine/models/ace_step/request_parser.h"
#include <algorithm>
#include <cctype>
#include <cmath>
#include <cstddef>
#include <cstdint>
#include <optional>
#include <stdexcept>
#include <string>
#include <string_view>
#include <utility>
#include <vector>
#include "engine/models/ace_step/task_route.h"
#include "engine/models/ace_step/prompt_builder.h"
#include "engine/framework/io/json.h"
#include "engine/framework/runtime/options.h"
namespace engine::models::ace_step {
namespace {
std::vector<std::string> option_string_list(const runtime::TaskRequest &request, std::string_view key) {
const auto value = runtime::find_option(request.options, {key});
if (!value.has_value() || value->empty()) {
return {};
}
if (value->front() == '[') {
const auto root = engine::io::json::parse(*value);
std::vector<std::string> out;
for (const auto & item : root.as_array()) {
if (!item.is_null()) {
out.push_back(item.as_string());
}
}
return out;
}
return {*value};
}
std::vector<float> option_f32_list(const runtime::TaskRequest &request, std::string_view key) {
const auto value = runtime::find_option(request.options, {key});
if (!value.has_value()) {
return {};
}
std::string raw = *value;
raw.erase(std::remove_if(raw.begin(), raw.end(),
[](unsigned char ch) { return std::isspace(ch) != 0 || ch == '[' || ch == ']'; }),
raw.end());
if (raw.empty()) {
return {};
}
std::vector<float> out;
size_t start = 0;
while (start < raw.size()) {
const size_t end = raw.find(',', start);
const std::string_view piece(raw.data() + static_cast<std::ptrdiff_t>(start),
(end == std::string::npos ? raw.size() : end) - start);
if (!piece.empty()) {
out.push_back(std::stof(std::string(piece)));
}
if (end == std::string::npos) {
break;
}
start = end + 1;
}
return out;
}
float clamp_repaint_strength(float strength) {
return std::max(0.0F, std::min(1.0F, strength));
}
int64_t python_round_to_int(float value) {
const double input = static_cast<double>(value);
const double floor_value = std::floor(input);
const double fraction = input - floor_value;
if (fraction > 0.5) {
return static_cast<int64_t>(floor_value + 1.0);
}
if (fraction < 0.5) {
return static_cast<int64_t>(floor_value);
}
const int64_t floor_int = static_cast<int64_t>(floor_value);
return (floor_int % 2 == 0) ? floor_int : floor_int + 1;
}
void apply_repaint_mode_strength(AceStepGenerationOptions & options, const runtime::TaskRequest & request) {
const auto mode_value = runtime::find_option(request.options, {"repaint_mode"});
const auto strength_value = runtime::find_option(request.options, {"repaint_strength"});
if (!mode_value.has_value() && !strength_value.has_value()) {
return;
}
const std::string mode = mode_value.value_or("balanced");
const float strength = clamp_repaint_strength(
strength_value.has_value() ? runtime::parse_float_option(request.options, {"repaint_strength"}).value() : 0.5F);
if (mode == "aggressive") {
options.repaint_injection_ratio = 0.0F;
options.repaint_crossfade_frames = 0;
return;
}
if (mode == "conservative") {
options.repaint_injection_ratio = 1.0F;
options.repaint_crossfade_frames = 25;
return;
}
if (mode != "balanced") {
throw std::runtime_error("ACE-Step repaint_mode must be balanced, conservative, or aggressive");
}
const float inv_strength = 1.0F - strength;
options.repaint_injection_ratio = inv_strength;
options.repaint_crossfade_frames = python_round_to_int(25.0F * inv_strength);
}
} // namespace
AceStepRequest ace_step_parse_request(const runtime::TaskRequest &request) {
if (!request.text_input.has_value()) {
throw std::runtime_error("ACE-Step requires text_input");
}
AceStepRequest out;
out.prompt = request.text_input->text;
out.vocal_language = request.text_input->language.empty() ? "en" : request.text_input->language;
out.source_audio = request.audio_input;
if (const auto lyrics = runtime::find_option(request.options, {"lyrics"}); lyrics.has_value()) {
out.lyrics = *lyrics;
}
if (const auto rewrite_caption = runtime::find_option(request.options, {"rewrite_caption"});
rewrite_caption.has_value()) {
out.rewrite_caption = runtime::parse_bool_option(*rewrite_caption, "rewrite_caption");
}
if (const auto negative = runtime::find_option(request.options, {"negative_prompt"}); negative.has_value()) {
out.negative_prompt = *negative;
}
if (const auto instruction = runtime::find_option(request.options, {"instruction"}); instruction.has_value()) {
out.instruction = *instruction;
}
const auto audio_codes = runtime::find_option(request.options, {"audio_codes"});
const auto audio_code_string = runtime::find_option(request.options, {"audio_code_string"});
const std::optional<std::string> audio_codes_value =
audio_codes.has_value() ? audio_codes : audio_code_string;
if (audio_codes_value.has_value() && !audio_codes_value->empty()) {
AceStepPlan codes_plan = ace_step_parse_lm_output(*audio_codes_value);
if (codes_plan.audio_code_ids.empty()) {
throw std::runtime_error("ACE-Step audio_codes contains no audio code tokens");
}
out.audio_codes_text = std::move(codes_plan.audio_codes_text);
out.audio_code_ids = std::move(codes_plan.audio_code_ids);
}
if (const auto track_name = runtime::find_option(request.options, {"track_name"}); track_name.has_value()) {
out.track_name = *track_name;
}
out.complete_track_classes = option_string_list(request, "complete_track_classes");
if (const auto route = runtime::find_option(request.options, {"route"}); route.has_value()) {
out.task_type = *route;
}
out.task = ace_step_parse_task_type(out.task_type);
out.task_type = std::string(ace_step_task_type_name(out.task));
if (out.task == AceStepTaskType::Extract) {
out.generation.thinking = false;
out.generation.use_cot_metas = false;
out.generation.use_cot_caption = false;
out.generation.use_cot_language = false;
out.generation.guidance_scale = 7.0F;
out.generation.shift = 3.0F;
}
if (const auto bpm = runtime::find_option(request.options, {"bpm"}); bpm.has_value()) {
out.bpm = runtime::parse_i64_option(request.options, {"bpm"}).value();
}
if (const auto keyscale = runtime::find_option(request.options, {"keyscale"}); keyscale.has_value()) {
out.keyscale = *keyscale;
}
if (const auto timesignature = runtime::find_option(request.options, {"timesignature"}); timesignature.has_value()) {
out.timesignature = *timesignature;
}
if (const auto chunk_mask_mode = runtime::find_option(request.options, {"chunk_mask_mode"});
chunk_mask_mode.has_value()) {
out.chunk_mask_mode = *chunk_mask_mode;
}
if (const auto repainting_start = runtime::parse_float_option(request.options, {"repainting_start"});
repainting_start.has_value()) {
out.repainting_start_seconds = *repainting_start >= 0.0F ?
std::optional<float>(*repainting_start) : std::optional<float>{};
}
if (const auto repainting_end = runtime::parse_float_option(request.options, {"repainting_end"});
repainting_end.has_value()) {
out.repainting_end_seconds = *repainting_end >= 0.0F ?
std::optional<float>(*repainting_end) : std::optional<float>{};
}
out.generation.duration_seconds = runtime::parse_float_option(request.options, {"duration_seconds"})
.value_or(out.generation.duration_seconds);
if (const auto thinking = runtime::find_option(request.options, {"thinking"}); thinking.has_value()) {
out.generation.thinking = runtime::parse_bool_option(*thinking, "thinking");
}
if (const auto use_cot_metas = runtime::find_option(request.options, {"use_cot_metas"}); use_cot_metas.has_value()) {
out.generation.use_cot_metas = runtime::parse_bool_option(*use_cot_metas, "use_cot_metas");
}
if (const auto use_cot_caption = runtime::find_option(request.options, {"use_cot_caption"});
use_cot_caption.has_value()) {
out.generation.use_cot_caption = runtime::parse_bool_option(*use_cot_caption, "use_cot_caption");
}
if (const auto use_cot_language = runtime::find_option(request.options, {"use_cot_language"});
use_cot_language.has_value()) {
out.generation.use_cot_language = runtime::parse_bool_option(*use_cot_language, "use_cot_language");
}
out.generation.num_inference_steps = runtime::parse_i64_option(request.options, {"num_inference_steps"})
.value_or(out.generation.num_inference_steps);
out.generation.guidance_scale = runtime::parse_float_option(request.options, {"guidance_scale"})
.value_or(out.generation.guidance_scale);
if (const auto use_adg = runtime::find_option(request.options, {"use_adg"}); use_adg.has_value()) {
out.generation.use_adg = runtime::parse_bool_option(*use_adg, "use_adg");
}
out.generation.cfg_interval_start = runtime::parse_float_option(request.options, {"cfg_interval_start"})
.value_or(out.generation.cfg_interval_start);
out.generation.cfg_interval_end = runtime::parse_float_option(request.options, {"cfg_interval_end"})
.value_or(out.generation.cfg_interval_end);
out.generation.lm_temperature = runtime::parse_float_option(request.options, {"lm_temperature"})
.value_or(out.generation.lm_temperature);
out.generation.lm_cfg_scale = runtime::parse_float_option(request.options, {"lm_cfg_scale"})
.value_or(out.generation.lm_cfg_scale);
out.generation.lm_top_k = runtime::parse_i64_option(request.options, {"lm_top_k"})
.value_or(out.generation.lm_top_k);
out.generation.lm_top_p = runtime::parse_float_option(request.options, {"lm_top_p"})
.value_or(out.generation.lm_top_p);
out.generation.lm_repetition_penalty =
runtime::parse_float_option(request.options, {"lm_repetition_penalty"})
.value_or(out.generation.lm_repetition_penalty);
out.generation.seed = runtime::parse_u32_option(request.options, {"seed"})
.value_or(runtime::random_u32_seed());
out.generation.shift = runtime::parse_float_option(request.options, {"shift"})
.value_or(out.generation.shift);
if (const auto infer_method = runtime::find_option(request.options, {"infer_method"}); infer_method.has_value()) {
out.generation.infer_method = *infer_method;
}
out.generation.timesteps = option_f32_list(request, "timesteps");
out.generation.audio_cover_strength =
runtime::parse_float_option(request.options, {"audio_cover_strength"})
.value_or(out.generation.audio_cover_strength);
out.generation.cover_noise_strength =
runtime::parse_float_option(request.options, {"cover_noise_strength"})
.value_or(out.generation.cover_noise_strength);
if (const auto retake_seed = runtime::find_option(request.options, {"retake_seed"}); retake_seed.has_value()) {
const int64_t parsed = runtime::parse_i64_option(request.options, {"retake_seed"}).value();
out.generation.retake_seed =
parsed >= 0 ? std::optional<uint32_t>(static_cast<uint32_t>(parsed)) : std::nullopt;
}
out.generation.retake_variance = runtime::parse_float_option(request.options, {"retake_variance"})
.value_or(out.generation.retake_variance);
if (const auto sampler_mode = runtime::find_option(request.options, {"sampler_mode"}); sampler_mode.has_value()) {
out.generation.sampler_mode = *sampler_mode;
}
out.generation.velocity_norm_threshold =
runtime::parse_float_option(request.options, {"velocity_norm_threshold"})
.value_or(out.generation.velocity_norm_threshold);
out.generation.velocity_ema_factor = runtime::parse_float_option(request.options, {"velocity_ema_factor"})
.value_or(out.generation.velocity_ema_factor);
if (const auto dcw_enabled = runtime::find_option(request.options, {"dcw_enabled"}); dcw_enabled.has_value()) {
out.generation.dcw_enabled = runtime::parse_bool_option(*dcw_enabled, "dcw_enabled");
}
if (const auto dcw_mode = runtime::find_option(request.options, {"dcw_mode"}); dcw_mode.has_value()) {
out.generation.dcw_mode = *dcw_mode;
}
out.generation.dcw_scaler = runtime::parse_float_option(request.options, {"dcw_scaler"})
.value_or(out.generation.dcw_scaler);
out.generation.dcw_high_scaler = runtime::parse_float_option(request.options, {"dcw_high_scaler"})
.value_or(out.generation.dcw_high_scaler);
if (const auto dcw_wavelet = runtime::find_option(request.options, {"dcw_wavelet"}); dcw_wavelet.has_value()) {
out.generation.dcw_wavelet = *dcw_wavelet;
}
apply_repaint_mode_strength(out.generation, request);
out.generation.repaint_crossfade_frames =
runtime::parse_i64_option(request.options, {"repaint_crossfade_frames"})
.value_or(out.generation.repaint_crossfade_frames);
out.generation.repaint_injection_ratio =
runtime::parse_float_option(request.options, {"repaint_injection_ratio"})
.value_or(out.generation.repaint_injection_ratio);
if (const auto noise_file = runtime::find_option(request.options, {"noise_file"}); noise_file.has_value()) {
out.generation.noise_file = *noise_file;
}
if (const auto flow_edit_morph = runtime::find_option(request.options, {"flow_edit_morph"});
flow_edit_morph.has_value()) {
out.generation.flow_edit_morph = runtime::parse_bool_option(*flow_edit_morph, "flow_edit_morph");
}
return out;
}
} // namespace engine::models::ace_step