minimind-o/webui/web_demo.py

503 lines
23 KiB
Python

import argparse, os, sys, json, time, math, torch, threading, queue, base64, io, logging, contextlib
import numpy as np
import torchaudio
from flask import Flask, request, Response, send_from_directory
from flask_cors import CORS
from flask_sock import Sock
from PIL import Image
from pydub import AudioSegment
sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
from transformers import AutoTokenizer, AutoModelForCausalLM
from model.model_omni import MiniMindOmni, RealtimeSession
from trainer.trainer_utils import log_model_params
logging.getLogger().setLevel(logging.ERROR)
with contextlib.redirect_stdout(io.StringIO()):
from funasr import AutoModel
from funasr.utils.postprocess_utils import rich_transcription_postprocess
app = Flask(__name__, static_folder='.')
CORS(app)
sock = Sock(app)
M = {} # model / tokenizer / device / mimi / asr / cfg
V = {} # voice_name -> {ref_codes, spk_emb}
V_builtin, V_unseen, V_manual = [], [], []
MODEL_LOCK = threading.Lock()
SAMPLES_PER_FRAME = 1920
REF_FRAMES = 300
CLONE_VOICE = 'voice_clone'
CLONE_FILE = 'voice_clone.pt'
# -------- helpers --------
def sse(d): return f"data: {json.dumps(d)}\n\n"
def scan_hf_models(base_dir):
models = {}
base_dir = os.path.abspath(base_dir)
for d in sorted(os.listdir(base_dir), reverse=True):
full_path = os.path.join(base_dir, d)
if not os.path.isdir(full_path) or d.startswith('.') or d.startswith('_'):
continue
files = set(os.listdir(full_path))
has_model = bool(files & {'pytorch_model.bin', 'model.safetensors', 'pytorch_model.bin.index.json', 'model.safetensors.index.json'})
if has_model:
models[d] = full_path
return models
def asr_run(samples):
r = M['asr'].generate(input=samples, cache={}, language='auto', use_itn=True)
return rich_transcription_postprocess(r[0]['text']).strip() if r else ''
def prep_audio(samples):
m = M['model']
proc = m.audio_processor(samples, sampling_rate=16000, return_tensors="pt", return_attention_mask=True)
mel = proc.input_features.squeeze(0).unsqueeze(0).to(M['device'])
vlen = proc.attention_mask.sum().item()
prompt = m.config.audio_special_token * (vlen or 1)
return mel, torch.tensor([vlen], device=M['device']), prompt
def prep_image(b64):
img = Image.open(io.BytesIO(base64.b64decode(b64))).convert('RGB')
return {k: v.to(M['device']) for k, v in M['model'].vision_processor(images=img, return_tensors="pt").items()}
def build_ids(prompt, history):
tok, dev, n = M['tokenizer'], M['device'], M['cfg'].max_history_turns
hist = history[-n:] if n > 0 else []
msgs = hist + [{"role": "user", "content": prompt}]
t = tok.apply_chat_template(msgs, tokenize=False, add_generation_prompt=True)
return torch.tensor(tok(t).data['input_ids'], dtype=torch.long, device=dev)[None, ...]
def _mimi_decode(frames):
codes = [f for f in frames if f and len(f) == 8]
if not codes or not M['mimi']: return None
mc = torch.tensor(codes, dtype=torch.long).T.unsqueeze(0)
mc = torch.where(mc >= 2049, torch.zeros_like(mc), mc)
with torch.no_grad():
au = M['mimi'].decode(mc).audio_values.squeeze().cpu().numpy()
return au, mc.shape[-1]
def pcm_bytes(frames, ov):
r = _mimi_decode(frames)
if r is None: return None
au, T = r
if ov > 0: au = au[int(ov * len(au) / T):]
return (au * 32767).astype('int16').tobytes()
def stream_pcm(frames, flush=False):
"""yield (pcm_bytes,) on chunk boundaries or on final flush."""
if not M['mimi']: return
cf, ov_max, n = M['cfg'].audio_chunk_frames, M['cfg'].audio_overlap, len(frames)
if not flush and n >= cf and n % cf == 0:
ov = min(ov_max, n - cf)
p = pcm_bytes(frames[-(cf + ov):], ov)
if p: yield p
elif flush:
rem = n % cf
if rem:
ov = min(ov_max, n - rem)
p = pcm_bytes(frames[-(rem + ov):], ov)
if p: yield p
def voice_args(name):
if name and name != 'default' and name in V:
v = V[name]
dev = M['device']
rc = v['ref_codes'].unsqueeze(0).to(dev)
se = v['spk_emb'].half().unsqueeze(0).to(dev) if 'spk_emb' in v else None
return {'ref_codes': rc, 'spk_emb': se}
return {}
def register_voice(name, value, group='manual'):
V[name] = value
groups = {'builtin': V_builtin, 'unseen': V_unseen, 'manual': V_manual}
dst = groups[group]
if name not in dst:
dst.append(name)
for k, lst in groups.items():
if k != group and name in lst:
lst.remove(name)
def clone_voice_path():
return os.path.join(os.path.dirname(os.path.dirname(os.path.abspath(__file__))), 'model', 'speaker', CLONE_FILE)
def delete_manual_voice(name):
if name not in V_manual:
raise RuntimeError('只能删除手动克隆的音色')
out_path = clone_voice_path()
saved = torch.load(out_path, map_location='cpu') if os.path.exists(out_path) else {}
if name in saved:
saved.pop(name)
torch.save(saved, out_path)
V.pop(name, None)
if name in V_manual:
V_manual.remove(name)
def normalize_voice_name(name):
name = ' '.join(str(name or '').split())
if not name:
name = CLONE_VOICE
if len(name) > 24:
raise RuntimeError('音色名太长,建议控制在 24 个字以内')
if name.lower() == 'default':
raise RuntimeError('default 是保留名称,请换一个')
if name in V_builtin or name in V_unseen:
raise RuntimeError('该名称已被现有音色占用,请换一个')
return name
def validate_clone_audio(w16):
if w16.numel() < int(16000 * 1.8):
raise RuntimeError('录音太短,请把整句话读完')
peak = w16.abs().max().item()
frame, hop = 800, 400
if w16.numel() >= frame:
rms = w16.unfold(0, frame, hop).pow(2).mean(dim=1).sqrt().cpu().numpy()
else:
rms = np.array([w16.pow(2).mean().sqrt().item()])
hi = float(np.quantile(rms, 0.95))
lo = float(np.quantile(rms, 0.2))
if hi < 0.008:
raise RuntimeError('录音太轻,请靠近麦克风一点')
if hi > 0 and lo / hi > 0.45:
raise RuntimeError('环境噪声太大,请换安静一点的环境')
if peak > 0.995:
raise RuntimeError('录音有爆音,请离麦克风远一点')
def build_clone_voice(audio_b64):
if M.get('mimi') is None or M.get('campplus') is None or M.get('mel_fn') is None:
raise RuntimeError('Mimi 或 CAM++ 未加载')
seg = AudioSegment.from_file(io.BytesIO(base64.b64decode(audio_b64))).set_channels(1).set_sample_width(2)
if len(seg) < 1000:
raise RuntimeError('录音太短,至少读 1 秒')
try:
seg = seg.speedup(playback_speed=1.5, chunk_size=150, crossfade=25)
except Exception:
seg = seg.speedup(playback_speed=1.5)
seg24 = seg.set_frame_rate(24000)
seg16 = seg.set_frame_rate(16000)
w24 = torch.tensor(np.frombuffer(seg24.raw_data, dtype=np.int16).astype(np.float32) / 32768.0)
w16 = torch.tensor(np.frombuffer(seg16.raw_data, dtype=np.int16).astype(np.float32) / 32768.0)
validate_clone_audio(w16)
mimi_dev = next(M['mimi'].parameters()).device
mimi_dtype = torch.float16 if mimi_dev.type != 'cpu' else torch.float32
with torch.inference_mode():
t = w24.unsqueeze(0).unsqueeze(0).to(device=mimi_dev, dtype=mimi_dtype)
codes = M['mimi'].encode(t).audio_codes
nf = math.ceil(w24.shape[-1] / SAMPLES_PER_FRAME)
ref_codes = codes[0, :8, :nf].cpu()[:, :min(nf, REF_FRAMES)]
with torch.no_grad():
mel = M['mel_fn'](w16.unsqueeze(0).to(M['device']))
feat = mel.clamp(min=1e-10).log().transpose(1, 2)
feat = feat - feat.mean(dim=1, keepdim=True)
spk_emb = M['campplus'](feat).squeeze(0).cpu()
return {'ref_codes': ref_codes, 'spk_emb': spk_emb}
def run_generate(x, audio_inputs, audio_lens, pixel_values, **kw):
with MODEL_LOCK, torch.no_grad():
yield from M['model'].generate(
x, M['tokenizer'].eos_token_id, stream=True, return_audio_codes=True,
audio_inputs=audio_inputs, audio_lens=audio_lens, pixel_values=pixel_values, **kw)
def load_main_model(model_path, model_name):
with MODEL_LOCK:
[sys.modules.pop(k) for k in list(sys.modules) if 'transformers_modules' in k]
M.pop('model', None); M.pop('tokenizer', None)
if torch.cuda.is_available(): torch.cuda.empty_cache()
tok = AutoTokenizer.from_pretrained(model_path, trust_remote_code=True)
m = AutoModelForCausalLM.from_pretrained(model_path, trust_remote_code=True)
vision_encoder, vision_processor = MiniMindOmni.load_vision('../model/siglip2-base-p32-256-ve')
audio_encoder, audio_processor = MiniMindOmni.load_sensevoice('../model/SenseVoiceSmall')
object.__setattr__(m, 'vision_encoder', vision_encoder)
object.__setattr__(m, 'vision_processor', vision_processor)
object.__setattr__(m, 'audio_encoder', audio_encoder)
object.__setattr__(m, 'audio_processor', audio_processor)
m = m.half().eval().to(M['device'])
if m.audio_encoder: m.audio_encoder.to(M['device'])
if m.vision_encoder: m.vision_encoder.to(M['device'])
M['tokenizer'], M['model'], M['model_name'] = tok, m, model_name
params = sum(p.numel() for p in m.parameters()) / 1e6
print(f'Loaded model: {model_name} ({params:.2f}M)')
return round(params, 2)
def prepare_turn(text, samples, image_b64, do_asr_for_image):
"""返回 (audio_inputs, audio_lens, pixel_values, prompt_for_model, user_text_for_history, asr_thread, asr_result)"""
audio_inputs = audio_lens = pixel_values = None
prompt = text or ''
user_text = text or ''
asr_thread, asr_result = None, [None]
if samples is not None:
if image_b64 and do_asr_for_image:
user_text = asr_run(samples)
prompt = user_text
else:
audio_inputs, audio_lens, prompt = prep_audio(samples)
if M['cfg'].max_history_turns > 0:
sa = samples.copy()
def _a(): asr_result[0] = asr_run(sa)
asr_thread = threading.Thread(target=_a); asr_thread.start()
if image_b64:
pixel_values = prep_image(image_b64)
m = M['model']
prompt = (prompt + "\n\n" if prompt else "") + "请描述这张图片\n\n" + m.config.image_special_token * m.config.image_token_len
return audio_inputs, audio_lens, pixel_values, prompt, user_text, asr_thread, asr_result
# -------- routes --------
@app.route('/')
def index(): return send_from_directory('.', 'web_demo.html')
@app.route('/call')
def call_page(): return send_from_directory('.', 'web_demo.html')
@app.route('/voices')
def get_voices():
return json.dumps({'builtin': sorted(V_builtin), 'unseen': sorted(V_unseen), 'manual': sorted(V_manual)})
@app.route('/models')
def get_models():
return json.dumps({'models': list(M.get('models', {}).keys()), 'current': M.get('model_name')})
@app.route('/switch_model', methods=['POST'])
def switch_model():
name = (request.json or {}).get('name')
if name not in M.get('models', {}):
return Response(json.dumps({'ok': False, 'error': 'unknown model'}), status=400, mimetype='application/json')
try:
params = load_main_model(M['models'][name], name)
return Response(json.dumps({'ok': True, 'model': name, 'params': params}), mimetype='application/json')
except Exception as e:
return Response(json.dumps({'ok': False, 'error': str(e)}), status=500, mimetype='application/json')
@app.route('/clone_voice', methods=['POST'])
def clone_voice():
d = request.json or {}
if not d.get('audio'):
return Response(json.dumps({'ok': False, 'error': 'missing audio'}), status=400, mimetype='application/json')
try:
name = normalize_voice_name(d.get('name'))
value = build_clone_voice(d['audio'])
out_path = clone_voice_path()
saved = torch.load(out_path, map_location='cpu') if os.path.exists(out_path) else {}
saved[name] = value
torch.save(saved, out_path)
register_voice(name, value, group='manual')
return Response(json.dumps({'ok': True, 'voice': name, 'path': './model/speaker/' + CLONE_FILE}), mimetype='application/json')
except Exception as e:
return Response(json.dumps({'ok': False, 'error': str(e)}), status=500, mimetype='application/json')
@app.route('/delete_voice', methods=['POST'])
def delete_voice():
d = request.json or {}
name = ' '.join(str(d.get('name') or '').split())
if not name:
return Response(json.dumps({'ok': False, 'error': 'missing name'}), status=400, mimetype='application/json')
try:
delete_manual_voice(name)
return Response(json.dumps({'ok': True, 'voice': name}), mimetype='application/json')
except Exception as e:
return Response(json.dumps({'ok': False, 'error': str(e)}), status=500, mimetype='application/json')
@app.route('/chat', methods=['POST'])
def chat():
d = request.json
history = d.get('history', [])
samples = None
if d.get('audio'):
seg = AudioSegment.from_file(io.BytesIO(base64.b64decode(d['audio']))).set_frame_rate(16000).set_channels(1).set_sample_width(2)
samples = np.frombuffer(seg.raw_data, dtype=np.int16).astype(np.float32) / 32768.0
va = voice_args(d.get('voice', 'default'))
def gen():
audio_inputs, audio_lens, pixel_values, prompt, user_text, asr_th, asr_res = prepare_turn(
d.get('text', ''), samples, d.get('image'), do_asr_for_image=True)
x = build_ids(prompt, history)
asr_sent = False
if user_text and samples is not None and d.get('image'):
yield sse({'type': 'user_prompt', 'content': user_text}); asr_sent = True
frames, text_ttft, audio_ttft = [], None, None
t0 = time.time(); hi = 0
for y, af in run_generate(x, audio_inputs, audio_lens, pixel_values,
max_new_tokens=d.get('max_tokens', 512),
temperature=d.get('temperature', 1), top_p=0.85, **va):
if not asr_sent and asr_th and not asr_th.is_alive():
asr_th.join()
if asr_res[0]: yield sse({'type': 'user_prompt', 'content': asr_res[0]})
asr_sent = True
if y is not None:
if text_ttft is None:
text_ttft = (time.time() - t0) * 1000
yield sse({'type': 'ttft', 'text_ttft': round(text_ttft, 1)})
ans = M['tokenizer'].decode(y[0].tolist(), skip_special_tokens=True)
if ans and ans[-1] != '\ufffd' and len(ans) > hi:
yield sse({'type': 'text', 'content': ans[hi:]}); hi = len(ans)
if af:
if audio_ttft is None:
audio_ttft = (time.time() - t0) * 1000
yield sse({'type': 'ttft', 'audio_ttft': round(audio_ttft, 1)})
frames.append(af)
for pcm in stream_pcm(frames):
b64 = base64.b64encode(pcm).decode()
for i in range(0, len(b64), 2000):
yield sse({'type': 'pcm', 'c': b64[i:i+2000], 'd': i+2000 >= len(b64)})
for pcm in stream_pcm(frames, flush=True):
b64 = base64.b64encode(pcm).decode()
for i in range(0, len(b64), 2000):
yield sse({'type': 'pcm', 'c': b64[i:i+2000], 'd': i+2000 >= len(b64)})
if not asr_sent:
if asr_th:
asr_th.join()
if asr_res[0]: yield sse({'type': 'user_prompt', 'content': asr_res[0]})
else:
yield sse({'type': 'user_prompt', 'content': prompt})
yield sse({'type': 'done'})
return Response(gen(), mimetype='text/event-stream', headers={'Cache-Control': 'no-cache', 'X-Accel-Buffering': 'no'})
@sock.route('/ws/realtime')
def realtime(ws):
session = RealtimeSession(M['vad_path'])
q = queue.Queue(); alive = [True]; state = {'history': [], 'image': None}
n_hist = M['cfg'].max_history_turns
def push_audio(data):
return session.push_chunk(np.frombuffer(data, dtype=np.int16).astype(np.float32) / 32768.0)
def set_ctx(msg):
h = msg.get('history') or []
state['history'] = h[-n_hist:] if n_hist > 0 else []
if 'image' in msg: state['image'] = msg.get('image')
if 'voice' in msg: state['voice'] = msg.get('voice', 'default')
def poll_interrupt():
while True:
try: data = q.get_nowait()
except queue.Empty: return False
if isinstance(data, bytes):
if push_audio(data) == 'interrupt': return True
ws.send(json.dumps({'type': 'vad', 'speaking': session.speaking}))
else:
m = json.loads(data)
if m.get('type') == 'context': set_ctx(m)
elif m.get('type') in ('stop', 'end'):
if m['type'] == 'end': alive[0] = False
session.interrupt = True; return True
def recv_loop():
while alive[0]:
try:
data = ws.receive(timeout=1)
if data is None: alive[0] = False; break
q.put(data)
except: alive[0] = False; break
threading.Thread(target=recv_loop, daemon=True).start()
try:
while alive[0]:
try: data = q.get(timeout=0.05)
except queue.Empty: continue
if isinstance(data, str):
m = json.loads(data)
if m.get('type') == 'context': set_ctx(m)
elif m.get('type') == 'stop': session.interrupt = True
elif m.get('type') == 'end': break
continue
if session.generating:
push_audio(data); ws.send(json.dumps({'type': 'vad', 'speaking': session.speaking})); continue
status = push_audio(data)
ws.send(json.dumps({'type': 'vad', 'speaking': session.speaking}))
if status != 'speech_end': continue
session.generating = True
audio = session.get_audio()
ws.send(json.dumps({'type': 'generating'}))
audio_inputs, audio_lens, pixel_values, prompt, user_text, asr_th, asr_res = prepare_turn(
'', audio, state['image'], do_asr_for_image=True)
if state['image']: state['image'] = None
x = build_ids(prompt, state['history'])
va_rt = voice_args(state.get('voice', 'default'))
frames, full_text, interrupted = [], '', False
for y, af in run_generate(x, audio_inputs, audio_lens, pixel_values,
max_new_tokens=512, temperature=0.7, **va_rt):
if poll_interrupt() or session.interrupt: interrupted = True; break
if y is not None:
ans = M['tokenizer'].decode(y[0].tolist(), skip_special_tokens=True)
if ans and ans[-1] != '\ufffd' and len(ans) > len(full_text):
ws.send(json.dumps({'type': 'text', 'content': ans[len(full_text):]})); full_text = ans
if af:
frames.append(af)
for pcm in stream_pcm(frames):
ws.send(json.dumps({'type': 'pcm', 'data': base64.b64encode(pcm).decode()}))
if not interrupted:
for pcm in stream_pcm(frames, flush=True):
ws.send(json.dumps({'type': 'pcm', 'data': base64.b64encode(pcm).decode()}))
if asr_th:
asr_th.join(); user_text = asr_res[0] or user_text
if n_hist > 0:
if user_text: state['history'].append({'role': 'user', 'content': user_text})
if full_text: state['history'].append({'role': 'assistant', 'content': full_text})
state['history'] = state['history'][-n_hist:]
ws.send(json.dumps({'type': 'done', 'interrupted': interrupted or session.interrupt}))
session.generating = False; session.interrupt = False
finally:
alive[0] = False
def init_model(args):
M['cfg'] = args; M['device'] = args.device
with contextlib.redirect_stdout(io.StringIO()):
M['asr'] = AutoModel(model='../model/SenseVoiceSmall', trust_remote_code=True, device=args.device, disable_update=True)
M['models'] = scan_hf_models(args.load_from)
if not M['models']:
raise RuntimeError(f"未在 {os.path.abspath(args.load_from)} 找到 transformers 模型")
model_name = next(iter(M['models']))
load_main_model(M['models'][model_name], model_name)
try:
from transformers import MimiModel
M['mimi'] = MimiModel.from_pretrained('../model/mimi').eval()
print('Mimi model loaded')
except: M['mimi'] = None
try:
from modelscope.models.audio.sv.DTDNN import CAMPPlus
M['campplus'] = CAMPPlus(feat_dim=80, embedding_size=192, growth_rate=32, bn_size=4,
init_channels=128, config_str='batchnorm-relu', memory_efficient=True)
sd = torch.load('../model/campplus/campplus_cn_common.pt', map_location='cpu')
M['campplus'].load_state_dict({k: v.float() for k, v in sd.items()})
M['campplus'] = M['campplus'].eval().to(args.device)
M['mel_fn'] = torchaudio.transforms.MelSpectrogram(
sample_rate=16000, n_fft=512, win_length=400, hop_length=160,
n_mels=80, f_min=20, f_max=7600, norm='slaney', mel_scale='slaney',
).to(args.device)
print('CAM++ loaded')
except Exception as e:
M['campplus'], M['mel_fn'] = None, None
print(f'CAM++ load failed: {e}')
M['vad_path'] = os.path.join(os.path.dirname(os.path.dirname(os.path.abspath(__file__))), 'model', 'vad', 'silero_vad.onnx')
spk_dir = os.path.join(os.path.dirname(os.path.dirname(os.path.abspath(__file__))), 'model', 'speaker')
for fn, group in [('voices.pt', 'builtin'), ('voices_unseen.pt', 'unseen'), (CLONE_FILE, 'manual')]:
fp = os.path.join(spk_dir, fn)
if os.path.exists(fp):
for speaker, v in torch.load(fp, map_location=args.device).items():
if speaker not in V or fn == CLONE_FILE:
register_voice(speaker, v, group=group)
if V: print(f'Loaded {len(V)} voices: builtin={sorted(V_builtin)}, unseen={sorted(V_unseen)}, manual={sorted(V_manual)}')
log_model_params(M['model'])
print('Warmup...')
with torch.no_grad():
ids = torch.tensor([[1, 2, 3]], device=args.device)
au = torch.full((1, 8, 3), 2049, dtype=torch.long, device=args.device)
M['model'].forward(torch.cat((au, ids.unsqueeze(1)), dim=1))
if M['model'].audio_encoder: M['model'].audio_encoder(torch.zeros(1, 100, 560, device=args.device), torch.tensor([100], device=args.device))
if M['mimi']: M['mimi'].decode(torch.zeros(1, 8, 1, dtype=torch.long))
print('Warmup done!')
if __name__ == '__main__':
p = argparse.ArgumentParser()
p.add_argument('--load_from', default='./')
p.add_argument('--device', default='cuda' if torch.cuda.is_available() else 'cpu')
p.add_argument('--port', default=7860, type=int)
p.add_argument('--audio_chunk_frames', default=4, type=int)
p.add_argument('--audio_overlap', default=2, type=int)
p.add_argument('--max_history_turns', default=0, type=int)
args = p.parse_args()
init_model(args)
app.run(host='0.0.0.0', port=args.port, threaded=True)