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chore(acestep-cpp): bump pin to ed53caf and adapt wrapper to new API #9908

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Merged
mudler merged 1 commit into from
May 20, 2026
Merged

chore(acestep-cpp): bump pin to ed53caf and adapt wrapper to new API #9908

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2 changes: 1 addition & 1 deletion backend/go/acestep-cpp/Makefile
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Original file line number Diff line number Diff line change
Expand Up @@ -8,7 +8,7 @@ JOBS?=$(shell nproc --ignore=1)

# acestep.cpp version
ACESTEP_REPO?=https://github.com/ace-step/acestep.cpp
ACESTEP_CPP_VERSION?=e0c8d75a672fca5684c88c68dbf6d12f58754258
ACESTEP_CPP_VERSION?=ed53caf164e4492a5620b2e3f2264629cf66da24
SO_TARGET?=libgoacestepcpp.so

CMAKE_ARGS+=-DBUILD_SHARED_LIBS=OFF
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30 changes: 13 additions & 17 deletions backend/go/acestep-cpp/cpp/goacestepcpp.cpp
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Expand Up @@ -22,12 +22,11 @@
#include <vector>

// Global model contexts (loaded once, reused across requests)
static DiTGGML g_dit = {};
static DiTGGMLConfig g_dit_cfg;
static VAEGGML g_vae = {};
static bool g_dit_loaded = false;
static bool g_vae_loaded = false;
static bool g_is_turbo = false;
static DiTGGML g_dit = {};
static VAEGGML g_vae = {};
static bool g_dit_loaded = false;
static bool g_vae_loaded = false;
static bool g_is_turbo = false;

// Silence latent [15000, 64] — read once from DiT GGUF
static std::vector<float> g_silence_full;
Expand Down Expand Up @@ -72,10 +71,9 @@ int load_model(const char * lm_model_path, const char * text_encoder_path,
g_text_enc_path = text_encoder_path;
g_dit_path = dit_model_path;

// Load DiT model
// Load DiT model (backend init + config are handled inside dit_ggml_load)
fprintf(stderr, "[acestep-cpp] Loading DiT from %s\n", dit_model_path);
dit_ggml_init_backend(&g_dit);
if (!dit_ggml_load(&g_dit, dit_model_path, g_dit_cfg, nullptr, 0.0f)) {
if (!dit_ggml_load(&g_dit, dit_model_path)) {
fprintf(stderr, "[acestep-cpp] FATAL: failed to load DiT from %s\n", dit_model_path);
return 1;
}
Expand Down Expand Up @@ -149,16 +147,16 @@ int generate_music(const char * caption, const char * lyrics, int bpm,

// Compute T (latent frames at 25Hz)
int T = (int)(duration * FRAMES_PER_SECOND);
T = ((T + g_dit_cfg.patch_size - 1) / g_dit_cfg.patch_size) * g_dit_cfg.patch_size;
int S = T / g_dit_cfg.patch_size;
T = ((T + g_dit.cfg.patch_size - 1) / g_dit.cfg.patch_size) * g_dit.cfg.patch_size;
int S = T / g_dit.cfg.patch_size;

if (T > 15000) {
fprintf(stderr, "[acestep-cpp] ERROR: T=%d exceeds max 15000\n", T);
return 2;
}

int Oc = g_dit_cfg.out_channels; // 64
int ctx_ch = g_dit_cfg.in_channels - Oc; // 128
int Oc = g_dit.cfg.out_channels; // 64
int ctx_ch = g_dit.cfg.in_channels - Oc; // 128

fprintf(stderr, "[acestep-cpp] T=%d, S=%d, duration=%.1fs, seed=%d\n", T, S, duration, seed);

Expand Down Expand Up @@ -191,9 +189,8 @@ int generate_music(const char * caption, const char * lyrics, int bpm,

fprintf(stderr, "[acestep-cpp] caption: %d tokens, lyrics: %d tokens\n", S_text, S_lyric);

// 4. Text encoder forward
// 4. Text encoder forward (backend init handled inside qwen3_load_text_encoder)
Qwen3GGML text_enc = {};
qwen3_init_backend(&text_enc);
if (!qwen3_load_text_encoder(&text_enc, g_text_enc_path.c_str())) {
fprintf(stderr, "[acestep-cpp] FATAL: failed to load text encoder\n");
return 4;
Expand All @@ -209,9 +206,8 @@ int generate_music(const char * caption, const char * lyrics, int bpm,
std::vector<float> lyric_embed(H_text * S_lyric);
qwen3_embed_lookup(&text_enc, lyric_ids.data(), S_lyric, lyric_embed.data());

// 6. Condition encoder
// 6. Condition encoder (backend init handled inside cond_ggml_load)
CondGGML cond = {};
cond_ggml_init_backend(&cond);
if (!cond_ggml_load(&cond, g_dit_path.c_str())) {
fprintf(stderr, "[acestep-cpp] FATAL: failed to load condition encoder\n");
qwen3_free(&text_enc);
Expand Down
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