Modify lora inference api

This commit is contained in:
刘鑫
2025-12-05 22:22:13 +08:00
parent b1f7593ae0
commit 400f47a516
5 changed files with 265 additions and 139 deletions

View File

@@ -25,9 +25,8 @@ import argparse
from pathlib import Path
import soundfile as sf
import torch
from voxcpm.model import VoxCPMModel
from voxcpm.core import VoxCPM
from voxcpm.model.voxcpm import LoRAConfig
from voxcpm.training.config import load_yaml_config
@@ -88,6 +87,11 @@ def parse_args():
default=600,
help="Max generation steps",
)
parser.add_argument(
"--normalize",
action="store_true",
help="Enable text normalization",
)
return parser.parse_args()
@@ -100,123 +104,114 @@ def main():
lora_cfg_dict = cfg.get("lora", {}) or {}
lora_cfg = LoRAConfig(**lora_cfg_dict) if lora_cfg_dict else None
# 2. Load base model (with LoRA structure and torch.compile)
print(f"[1/3] Loading base model: {pretrained_path}")
model = VoxCPMModel.from_local(
pretrained_path,
optimize=True, # compile first, load_lora_weights uses named_parameters for compatibility
training=False,
lora_config=lora_cfg,
)
# Debug: check DiT param paths after compile
dit_params = [n for n, _ in model.named_parameters() if 'feat_decoder' in n and 'lora' in n]
print(f"[DEBUG] DiT LoRA param paths after compile (first 3): {dit_params[:3]}")
# 3. Load LoRA weights (works after compile)
ckpt_dir = Path(args.lora_ckpt)
if not ckpt_dir.exists():
# 2. Check LoRA checkpoint
ckpt_dir = args.lora_ckpt
if not Path(ckpt_dir).exists():
raise FileNotFoundError(f"LoRA checkpoint not found: {ckpt_dir}")
print(f"[2/3] Loading LoRA weights: {ckpt_dir}")
loaded, skipped = model.load_lora_weights(str(ckpt_dir))
print(f" Loaded {len(loaded)} parameters")
if skipped:
print(f"[WARNING] Skipped {len(skipped)} parameters")
print(f" Skipped keys (first 5): {skipped[:5]}")
# 3. Load model with LoRA (no denoiser)
print(f"[1/2] Loading model with LoRA: {pretrained_path}")
print(f" LoRA weights: {ckpt_dir}")
model = VoxCPM.from_pretrained(
hf_model_id=pretrained_path,
load_denoiser=False,
optimize=True,
lora_config=lora_cfg,
lora_weights_path=ckpt_dir,
)
# 4. Synthesize audio
prompt_wav_path = args.prompt_audio or ""
prompt_text = args.prompt_text or ""
prompt_wav_path = args.prompt_audio if args.prompt_audio else None
prompt_text = args.prompt_text if args.prompt_text else None
out_path = Path(args.output)
out_path.parent.mkdir(parents=True, exist_ok=True)
print(f"\n[3/3] Starting synthesis tests...")
print(f"\n[2/2] Starting synthesis tests...")
# === Test 1: With LoRA ===
print(f"\n [Test 1] Synthesize with LoRA...")
with torch.inference_mode():
audio = model.generate(
target_text=args.text,
prompt_text=prompt_text,
prompt_wav_path=prompt_wav_path,
max_len=args.max_len,
inference_timesteps=args.inference_timesteps,
cfg_value=args.cfg_value,
)
audio_np = audio.squeeze(0).cpu().numpy() if audio.dim() > 1 else audio.cpu().numpy()
audio_np = model.generate(
text=args.text,
prompt_wav_path=prompt_wav_path,
prompt_text=prompt_text,
cfg_value=args.cfg_value,
inference_timesteps=args.inference_timesteps,
max_length=args.max_len,
normalize=args.normalize,
denoise=False,
)
lora_output = out_path.with_stem(out_path.stem + "_with_lora")
sf.write(str(lora_output), audio_np, model.sample_rate)
print(f" Saved: {lora_output}, duration: {len(audio_np) / model.sample_rate:.2f}s")
sf.write(str(lora_output), audio_np, model.tts_model.sample_rate)
print(f" Saved: {lora_output}, duration: {len(audio_np) / model.tts_model.sample_rate:.2f}s")
# === Test 2: Disable LoRA (via set_lora_enabled) ===
print(f"\n [Test 2] Disable LoRA (set_lora_enabled=False)...")
model.set_lora_enabled(False)
with torch.inference_mode():
audio = model.generate(
target_text=args.text,
prompt_text=prompt_text,
prompt_wav_path=prompt_wav_path,
max_len=args.max_len,
inference_timesteps=args.inference_timesteps,
cfg_value=args.cfg_value,
)
audio_np = audio.squeeze(0).cpu().numpy() if audio.dim() > 1 else audio.cpu().numpy()
audio_np = model.generate(
text=args.text,
prompt_wav_path=prompt_wav_path,
prompt_text=prompt_text,
cfg_value=args.cfg_value,
inference_timesteps=args.inference_timesteps,
max_length=args.max_len,
normalize=args.normalize,
denoise=False,
)
disabled_output = out_path.with_stem(out_path.stem + "_lora_disabled")
sf.write(str(disabled_output), audio_np, model.sample_rate)
print(f" Saved: {disabled_output}, duration: {len(audio_np) / model.sample_rate:.2f}s")
sf.write(str(disabled_output), audio_np, model.tts_model.sample_rate)
print(f" Saved: {disabled_output}, duration: {len(audio_np) / model.tts_model.sample_rate:.2f}s")
# === Test 3: Re-enable LoRA ===
print(f"\n [Test 3] Re-enable LoRA (set_lora_enabled=True)...")
model.set_lora_enabled(True)
with torch.inference_mode():
audio = model.generate(
target_text=args.text,
prompt_text=prompt_text,
prompt_wav_path=prompt_wav_path,
max_len=args.max_len,
inference_timesteps=args.inference_timesteps,
cfg_value=args.cfg_value,
)
audio_np = audio.squeeze(0).cpu().numpy() if audio.dim() > 1 else audio.cpu().numpy()
audio_np = model.generate(
text=args.text,
prompt_wav_path=prompt_wav_path,
prompt_text=prompt_text,
cfg_value=args.cfg_value,
inference_timesteps=args.inference_timesteps,
max_length=args.max_len,
normalize=args.normalize,
denoise=False,
)
reenabled_output = out_path.with_stem(out_path.stem + "_lora_reenabled")
sf.write(str(reenabled_output), audio_np, model.sample_rate)
print(f" Saved: {reenabled_output}, duration: {len(audio_np) / model.sample_rate:.2f}s")
sf.write(str(reenabled_output), audio_np, model.tts_model.sample_rate)
print(f" Saved: {reenabled_output}, duration: {len(audio_np) / model.tts_model.sample_rate:.2f}s")
# === Test 4: Unload LoRA (reset_lora_weights) ===
print(f"\n [Test 4] Unload LoRA (reset_lora_weights)...")
model.reset_lora_weights()
with torch.inference_mode():
audio = model.generate(
target_text=args.text,
prompt_text=prompt_text,
prompt_wav_path=prompt_wav_path,
max_len=args.max_len,
inference_timesteps=args.inference_timesteps,
cfg_value=args.cfg_value,
)
audio_np = audio.squeeze(0).cpu().numpy() if audio.dim() > 1 else audio.cpu().numpy()
print(f"\n [Test 4] Unload LoRA (unload_lora)...")
model.unload_lora()
audio_np = model.generate(
text=args.text,
prompt_wav_path=prompt_wav_path,
prompt_text=prompt_text,
cfg_value=args.cfg_value,
inference_timesteps=args.inference_timesteps,
max_length=args.max_len,
normalize=args.normalize,
denoise=False,
)
reset_output = out_path.with_stem(out_path.stem + "_lora_reset")
sf.write(str(reset_output), audio_np, model.sample_rate)
print(f" Saved: {reset_output}, duration: {len(audio_np) / model.sample_rate:.2f}s")
sf.write(str(reset_output), audio_np, model.tts_model.sample_rate)
print(f" Saved: {reset_output}, duration: {len(audio_np) / model.tts_model.sample_rate:.2f}s")
# === Test 5: Hot-reload LoRA (load_lora_weights) ===
print(f"\n [Test 5] Hot-reload LoRA (load_lora_weights)...")
loaded, _ = model.load_lora_weights(str(ckpt_dir))
# === Test 5: Hot-reload LoRA (load_lora) ===
print(f"\n [Test 5] Hot-reload LoRA (load_lora)...")
loaded, skipped = model.load_lora(str(ckpt_dir))
print(f" Reloaded {len(loaded)} parameters")
with torch.inference_mode():
audio = model.generate(
target_text=args.text,
prompt_text=prompt_text,
prompt_wav_path=prompt_wav_path,
max_len=args.max_len,
inference_timesteps=args.inference_timesteps,
cfg_value=args.cfg_value,
)
audio_np = audio.squeeze(0).cpu().numpy() if audio.dim() > 1 else audio.cpu().numpy()
audio_np = model.generate(
text=args.text,
prompt_wav_path=prompt_wav_path,
prompt_text=prompt_text,
cfg_value=args.cfg_value,
inference_timesteps=args.inference_timesteps,
max_length=args.max_len,
normalize=args.normalize,
denoise=False,
)
reload_output = out_path.with_stem(out_path.stem + "_lora_reloaded")
sf.write(str(reload_output), audio_np, model.sample_rate)
print(f" Saved: {reload_output}, duration: {len(audio_np) / model.sample_rate:.2f}s")
sf.write(str(reload_output), audio_np, model.tts_model.sample_rate)
print(f" Saved: {reload_output}, duration: {len(audio_np) / model.tts_model.sample_rate:.2f}s")
print(f"\n[Done] All tests completed!")
print(f" - with_lora: {lora_output}")
@@ -228,5 +223,3 @@ def main():
if __name__ == "__main__":
main()