From dc682db808eb5f425f0dbed4c5e7feb0a334955f Mon Sep 17 00:00:00 2001
From: 游雁 <zhifu.gzf@alibaba-inc.com>
Date: 星期四, 23 十一月 2023 11:43:05 +0800
Subject: [PATCH] update funasr.text -> funasr.tokenizer fix bug export

---
 funasr/datasets/data_sampler.py |   54 ++++++++++++++++++++++++++++++++++--------------------
 1 files changed, 34 insertions(+), 20 deletions(-)

diff --git a/funasr/datasets/data_sampler.py b/funasr/datasets/data_sampler.py
index 2875d8d..6b3407c 100644
--- a/funasr/datasets/data_sampler.py
+++ b/funasr/datasets/data_sampler.py
@@ -1,29 +1,42 @@
 import torch
 
+import numpy as np
+
 class BatchSampler(torch.utils.data.BatchSampler):
 	
-	def __init__(self, dataset=None, args=None, drop_last=True, ):
+	def __init__(self, dataset, batch_size_type: str="example", batch_size: int=14, sort_size: int=30, drop_last: bool=False, shuffle: bool=True, **kwargs):
 		
 		self.drop_last = drop_last
 		self.pre_idx = -1
 		self.dataset = dataset
-		self.batch_size_type = args.batch_size_type
-		self.batch_size = args.batch_size
-		self.sort_size = args.sort_size
-		self.max_length_token = args.max_length_token
 		self.total_samples = len(dataset)
+		# self.batch_size_type = args.batch_size_type
+		# self.batch_size = args.batch_size
+		# self.sort_size = args.sort_size
+		# self.max_length_token = args.max_length_token
+		self.batch_size_type = batch_size_type
+		self.batch_size = batch_size
+		self.sort_size = sort_size
+		self.max_length_token = kwargs.get("max_length_token", 5000)
+		self.shuffle_idx = np.arange(self.total_samples)
+		self.shuffle = shuffle
 
 	
 	def __len__(self):
 		return self.total_samples
 
-	
 	def __iter__(self):
+		print("in sampler")
+		
+		if self.shuffle:
+			np.random.shuffle(self.shuffle_idx)
+			
 		batch = []
 		max_token = 0
 		num_sample = 0
-		
+
 		iter_num = (self.total_samples-1) // self.sort_size + 1
+		print("iter_num: ", iter_num)
 		for iter in range(self.pre_idx + 1, iter_num):
 			datalen_with_index = []
 			for i in range(self.sort_size):
@@ -31,30 +44,31 @@
 				if idx >= self.total_samples:
 					continue
 
-				if self.batch_size_type == "example":
-					sample_len_cur = 1
-				else:
-					idx_map = self.dataset.shuffle_idx[idx]
-					# prompt = self.dataset.indexed_dataset[idx_map]["prompt"]
-					sample_len_cur = self.dataset.indexed_dataset[idx_map]["source_len"] + \
-					                 self.dataset.indexed_dataset[idx_map]["target_len"]
+				idx_map = self.shuffle_idx[idx]
+				# prompt = self.dataset.indexed_dataset[idx_map]["prompt"]
+				sample_len_cur = self.dataset.indexed_dataset[idx_map]["source_len"] + \
+				                 self.dataset.indexed_dataset[idx_map]["target_len"]
 
 				datalen_with_index.append([idx, sample_len_cur])
 			
 			datalen_with_index_sort = sorted(datalen_with_index, key=lambda x: x[1])
 			for item in datalen_with_index_sort:
-				idx, sample_len_cur = item
-				if sample_len_cur > self.max_length_token:
+				idx, sample_len_cur_raw = item
+				if sample_len_cur_raw > self.max_length_token:
 					continue
-				max_token_cur = max(max_token, sample_len_cur)
-				max_token_padding = (1 + num_sample) * max_token_cur
+
+				max_token_cur = max(max_token, sample_len_cur_raw)
+				max_token_padding = 1 + num_sample
+				if self.batch_size_type == 'token':
+					max_token_padding *= max_token_cur
 				if max_token_padding <= self.batch_size:
 					batch.append(idx)
 					max_token = max_token_cur
 					num_sample += 1
 				else:
 					yield batch
-					max_token = sample_len_cur
-					num_sample = 1
 					batch = [idx]
+					max_token = sample_len_cur_raw
+					num_sample = 1
+					
 		
\ No newline at end of file

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