Fabio
c36510c21e
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49 lines
1.5 KiB
C++
49 lines
1.5 KiB
C++
#pragma once
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#include "engine/models/vibevoice/assets.h"
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#include <cstdint>
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#include <vector>
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namespace engine::models::vibevoice {
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struct VibeVoiceSchedulerStepResult {
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std::vector<float> prev_sample;
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};
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class VibeVoiceDPMSolverScheduler final {
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public:
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explicit VibeVoiceDPMSolverScheduler(const VibeVoiceDiffusionHeadConfig & config);
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void set_timesteps(int64_t inference_steps);
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void reset_step_state();
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const std::vector<int64_t> & timesteps() const noexcept;
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VibeVoiceSchedulerStepResult step(
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const std::vector<float> & model_output,
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int64_t timestep,
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const std::vector<float> & sample);
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private:
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void validate_supported_config() const;
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void init_step_index(int64_t timestep);
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int64_t index_for_timestep(int64_t timestep) const;
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std::vector<float> convert_model_output(
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const std::vector<float> & model_output,
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const std::vector<float> & sample) const;
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std::vector<float> first_order_update(
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const std::vector<float> & model_output,
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const std::vector<float> & sample) const;
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std::vector<float> second_order_update(const std::vector<float> & sample) const;
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VibeVoiceDiffusionHeadConfig config_;
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std::vector<float> alphas_cumprod_;
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std::vector<float> sigmas_;
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std::vector<int64_t> timesteps_;
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std::vector<std::vector<float>> model_outputs_;
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int64_t num_inference_steps_ = 0;
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int64_t step_index_ = -1;
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int64_t lower_order_nums_ = 0;
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};
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} // namespace engine::models::vibevoice
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