commit 60fab4e93772d0bce3cdfaa220b104cfdcc27582
Author: yumoqing <yumoqing@gmail.com>
Date:   Mon Oct 21 18:29:57 2024 +0800

    first commit

diff --git a/conf/config.json b/conf/config.json
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--- /dev/null
+++ b/conf/config.json
@@ -0,0 +1,10 @@
+{
+	"zmq_url" : "tcp://127.0.0.1:10003",
+	"sample_rate":16000,
+	"remove_silence":false,
+	"modelname":"F5-TTS",
+	"ref_audio_fn":"$[workdir]$/samples/test_zh_1_ref_short.wav",
+	"ref_text":"对，这就是我，万人敬仰的太乙真人。",
+	"cross_fade_duration":0
+}
+
diff --git a/f5tts.py b/f5tts.py
new file mode 100644
index 0000000..fb16a09
--- /dev/null
+++ b/f5tts.py
@@ -0,0 +1,272 @@
+import time
+from pathlib import Path
+import codecs
+import re
+import numpy as np
+import soundfile as sf
+import torch
+import torchaudio
+from cached_path import cached_path
+from einops import rearrange
+
+from vocos import Vocos
+from transformers import pipeline
+from F5_TTS.model import CFM, DiT, MMDiT, UNetT
+from F5_TTS.model.utils import (convert_char_to_pinyin, get_tokenizer,
+						 load_checkpoint, save_spectrogram)
+
+import os
+import json
+from appPublic.dictObject import DictObject
+from appPublic.zmq_reqrep import ZmqReplier
+from appPublic.jsonConfig import getConfig
+
+n_mel_channels = 100
+hop_length = 256
+target_rms = 0.1
+nfe_step = 32  # 16, 32
+cfg_strength = 2.0
+ode_method = "euler"
+sway_sampling_coef = -1.0
+speed = 1.0
+
+F5TTS_model_cfg = dict(
+	dim=1024, depth=22, heads=16, ff_mult=2, text_dim=512, conv_layers=4
+)
+E2TTS_model_cfg = dict(dim=1024, depth=24, heads=16, ff_mult=4)
+
+def chunk_text(text, max_chars=135):
+	"""
+	Splits the input text into chunks, each with a maximum number of characters.
+	Args:
+		text (str): The text to be split.
+		max_chars (int): The maximum number of characters per chunk.
+	Returns:
+		List[str]: A list of text chunks.
+	"""
+	chunks = []
+	current_chunk = ""
+	# Split the text into sentences based on punctuation followed by whitespace
+	sentences = re.split(r'(?<=[;:,.!?])\s+|(?<=[；：，。！？])', text)
+
+	for sentence in sentences:
+		if len(current_chunk.encode('utf-8')) + len(sentence.encode('utf-8')) <= max_chars:
+			current_chunk += sentence + " " if sentence and len(sentence[-1].encode('utf-8')) == 1 else sentence
+		else:
+			if current_chunk:
+				chunks.append(current_chunk.strip())
+			current_chunk = sentence + " " if sentence and len(sentence[-1].encode('utf-8')) == 1 else sentence
+
+	if current_chunk:
+		chunks.append(current_chunk.strip())
+
+	return chunks
+
+class F5TTS:
+	def __init__(self):
+		config = getConfig()
+		self.sample_rate = config.sample_rate
+		self.remove_silence = config.remove_silence
+		self.modelname = config.modelname
+		self.ref_audio_fn = config.ref_audio_fn
+		self.ref_text = config.ref_text
+		self.model= self.load_model(self.modelname)
+		self.cross_fade_duration = config.cross_fade_duration
+		self.gen_ref_audio()
+		self.gen_ref_text()
+		self.replier = ZmqReplier(self.zmq_url, self.generate)
+		try:	
+			print(f"Load vocos from local path {vocos_local_path}")
+			vocos = Vocos.from_hparams(f"{vocos_local_path}/config.yaml")
+			state_dict = torch.load(f"{vocos_local_path}/pytorch_model.bin", map_location=device)
+			vocos.load_state_dict(state_dict)
+			vocos.eval()
+			self.vocos = vocos
+		except:	 
+			print("Donwload Vocos from huggingface charactr/vocos-mel-24khz")
+			vocos = Vocos.from_pretrained("charactr/vocos-mel-24khz")
+			self.vocos = vocos
+
+
+	def gen_ref_audio(self):
+		"""
+		gen ref_audio
+		"""
+		audio, sr = torchaudio.load(ref_audio)
+		if audio.shape[0] > 1:
+			audio = torch.mean(audio, dim=0, keepdim=True)
+		rms = torch.sqrt(torch.mean(torch.square(audio)))
+		if rms < target_rms:
+			audio = audio * target_rms / rms
+		if sr != target_sample_rate:
+			resampler = torchaudio.transforms.Resample(sr, target_sample_rate)
+			audio = resampler(audio)
+		self.ref_audio = audio
+
+	def run(self):
+		print(f'running {self.zmq_url}')
+		self.replier._run()
+		print('ended ...')
+
+	def gen_ref_text(self):
+		"""
+		"""
+		# Add the functionality to ensure it ends with ". "
+		ref_text = self.ref_text
+		if not ref_text.endswith(". ") and not ref_text.endswith("。"):
+			if ref_text.endswith("."):
+				ref_text += " "
+			else:
+				ref_text += ". "
+		self.ref_text = ref_text
+
+	def _load_model(self, repo_name, exp_name, model_cls, model_cfg, ckpt_step):
+		ckpt_path = f"ckpts/{exp_name}/model_{ckpt_step}.pt" # .pt | .safetensors
+		if not Path(ckpt_path).exists():
+			ckpt_path = str(cached_path(f"hf://SWivid/{repo_name}/{exp_name}/model_{ckpt_step}.safetensors"))
+		vocab_char_map, vocab_size = get_tokenizer("Emilia_ZH_EN", "pinyin")
+		model = CFM(
+			transformer=model_cls(
+				**model_cfg, text_num_embeds=vocab_size, mel_dim=n_mel_channels
+			),
+			mel_spec_kwargs=dict(
+				target_sample_rate=self.sample_rate,
+				n_mel_channels=n_mel_channels,
+				hop_length=hop_length,
+			),
+			odeint_kwargs=dict(
+				method="euler"
+			),
+			vocab_char_map=vocab_char_map,
+		).to(device)
+
+		model = load_checkpoint(model, ckpt_path, device, use_ema = True)
+
+		return model
+
+	def load_model(self, model):
+		if model == 'F5-TTS':
+			ret = self._load_model(model, "F5TTS_Base", DiT, F5TTS_model_cfg, 1200000)
+			return ret
+		if model == 'E2-TTS':
+			return self._load_model(model, "E2TTS_Base", UNetT, E2TTS_model_cfg, 1200000)
+
+	def split_text(self, text):
+		max_chars = int(len(self.ref_text.encode('utf-8')) / (self.ref_audio.shape[-1] / self.sample_rate) * (25 - self.ref_audio.shape[-1] / self.sample_rate))
+		gen_text_batches = chunk_text(gen_text, max_chars=max_chars)
+		print('ref_text', ref_text)
+
+	def inference(self, prmpt, stream=False):
+		generated_waves = []
+		max_chars = int(len(self.ref_text.encode('utf-8')) / (self.ref_audio.shape[-1] / self.sample_rate) * (25 - self.ref_audio.shape[-1] / self.sample_rate))
+		gen_text_batches = chunk_text(prompt, max_chars=max_chars)
+		for gen_text in gen_text_Batches:
+			# Prepare the text
+			text_list = [self.ref_text + gen_text]
+			final_text_list = convert_char_to_pinyin(text_list)
+
+			# Calculate duration
+			ref_audio_len = self.ref_audio.shape[-1] // hop_length
+			zh_pause_punc = r"。，、；：？！"
+			ref_text_len = len(self.ref_text.encode('utf-8')) + 3 * len(re.findall(zh_pause_punc, self.ref_text))
+			gen_text_len = len(gen_text.encode('utf-8')) + 3 * len(re.findall(zh_pause_punc, gen_text))
+			duration = ref_audio_len + int(ref_audio_len / ref_text_len * gen_text_len / speed)
+
+			# inference
+			with torch.inference_mode():
+				generated, _ = self.model.sample(
+					cond=self.ref_audio,
+					text=final_text_list,
+					duration=duration,
+					steps=nfe_step,
+					cfg_strength=cfg_strength,
+					sway_sampling_coef=sway_sampling_coef,
+				)
+			generated = generated[:, ref_audio_len:, :]
+			generated_mel_spec = rearrange(generated, "1 n d -> 1 d n")
+			generated_wave = vocos.decode(generated_mel_spec.cpu())
+			if rms < target_rms:
+				generated_wave = generated_wave * rms / target_rms
+			if stream:
+				yield genreated
+			else:
+				# wav -> numpy
+				generated_wave = generated_wave.squeeze().cpu().numpy()
+				generated_waves.append(generated_wave)
+		if stream:
+			return
+		if self.cross_fade_duration <= 0:
+			# Simply concatenate
+			final_wave = np.concatenate(generated_waves)
+		else:
+			final_wave = self.cross_fade_wave(generated_waves)
+		fn = self.write_wave(final_wave)
+		return fn
+	
+	def cross_fade_wave(self, waves):
+		final_wave = generated_waves[0]
+		for i in range(1, len(generated_waves)):
+			prev_wave = final_wave
+			next_wave = generated_waves[i]
+
+			# Calculate cross-fade samples, ensuring it does not exceed wave lengths
+			cross_fade_samples = int(self.cross_fade_duration * self.sample_rate)
+			cross_fade_samples = min(cross_fade_samples, len(prev_wave), len(next_wave))
+
+			if cross_fade_samples <= 0:
+				# No overlap possible, concatenate
+				final_wave = np.concatenate([prev_wave, next_wave])
+				continue
+
+			# Overlapping parts
+			prev_overlap = prev_wave[-cross_fade_samples:]
+			next_overlap = next_wave[:cross_fade_samples]
+
+			# Fade out and fade in
+			fade_out = np.linspace(1, 0, cross_fade_samples)
+			fade_in = np.linspace(0, 1, cross_fade_samples)
+
+			# Cross-faded overlap
+			cross_faded_overlap = prev_overlap * fade_out + next_overlap * fade_in
+
+			# Combine
+			new_wave = np.concatenate([
+				prev_wave[:-cross_fade_samples],
+				cross_faded_overlap,
+				next_wave[cross_fade_samples:]
+			])
+
+			final_wave = new_wave
+		return final_wave
+
+	def write_wave(wave):
+		fn = temp_file(suffix='.wav')
+		sf.write(fn, wave, self.sample_rate)
+		return fn
+
+	def generate(self, d):
+		msg= d.decode('utf-8')
+		data = DictObject(**json.loads(msg))
+		print(data)
+		t1 = time()
+		f = self.inference(data.prompt)
+		t2 = time()
+		d = {
+			"audio_file":f,
+			"time_cost":t2 - t1
+		}
+		print(f'{d}')
+		return json.dumps(d)
+
+
+if __name__ == '__main__':
+	workdir = os.getcwd()
+	config = getConfig(workdir)
+	print(f'{config=}')
+	tts = F5TTS()
+	print('here')
+	tts.run()
+
+
+
+
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
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--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1,2 @@
+git+https://github.com/SWivid/F5-TTS.git
+git+https://git.kaiyuancloud.cn/yumoqing/apppublic
diff --git a/run.sh b/run.sh
new file mode 100755
index 0000000..418acfa
--- /dev/null
+++ b/run.sh
@@ -0,0 +1,4 @@
+#!/bin/sh
+
+r=$HOME/ve/f5/bin/python
+$r $*