feat(utils): 优化时间戳处理并支持毫秒级精度

- 重构了时间戳转换函数，支持 HH:MM:SS,mmm 格式
- 优化了时间戳计算逻辑，提高了精度- 更新了相关服务和工具类中的时间戳处理方法

app/services/script_service.py

@@ -35,7 +35,7 @@ class ScriptGenerator:
             video_theme: 视频主题
             custom_prompt: 自定义提示词
             skip_seconds: 跳过开始的秒数
-            threshold: 差异阈值
+            threshold: 差异<EFBFBD><EFBFBD><EFBFBD>值
             vision_batch_size: 视觉处理批次大小
             vision_llm_provider: 视觉模型提供商
             progress_callback: 进度回调函数
@@ -177,7 +177,7 @@ class ScriptGenerator:
             batch_files = self._get_batch_files(keyframe_files, result, vision_batch_size)
             first_timestamp, last_timestamp, _ = self._get_batch_timestamps(batch_files, prev_batch_files)
             
-            # 添加带时间戳的分析结果
+            # 添加带时间戳的分<EFBFBD><EFBFBD>结果
             frame_analysis += f"\n=== {first_timestamp}-{last_timestamp} ===\n"
             frame_analysis += result['response']
             frame_analysis += "\n"
@@ -214,7 +214,7 @@ class ScriptGenerator:
 
         progress_callback(90, "正在生成文案...")
         
-        # 获取文本生成配置
+        # 获取文本生<EFBFBD><EFBFBD>配置
         text_provider = config.app.get('text_llm_provider', 'gemini').lower()
         text_api_key = config.app.get(f'text_{text_provider}_api_key')
         text_model = config.app.get(f'text_{text_provider}_model_name')
@@ -286,7 +286,7 @@ class ScriptGenerator:
             task_data = response.json()
             task_id = task_data["data"].get('task_id')
             if not task_id:
-                raise Exception(f"无效的API响应: {response.text}")
+                raise Exception(f"无效的API<EFBFBD><EFBFBD>应: {response.text}")
             
             progress_callback(50, "正在等待分析结果...")
             retry_count = 0
@@ -342,10 +342,10 @@ class ScriptGenerator:
         batch_files: List[str], 
         prev_batch_files: List[str] = None
     ) -> tuple[str, str, str]:
-        """获取一批文件的时间戳范围"""
+        """获取一批文件的时间戳范围，支持毫秒级精度"""
         if not batch_files:
             logger.warning("Empty batch files")
-            return "00:00", "00:00", "00:00-00:00"
+            return "00:00:00,000", "00:00:00,000", "00:00:00,000-00:00:00,000"
             
         if len(batch_files) == 1 and prev_batch_files and len(prev_batch_files) > 0:
             first_frame = os.path.basename(prev_batch_files[-1])
@@ -358,18 +358,45 @@ class ScriptGenerator:
         last_time = last_frame.split('_')[2].replace('.jpg', '')
         
         def format_timestamp(time_str: str) -> str:
-            if len(time_str) < 4:
-                logger.warning(f"Invalid timestamp format: {time_str}")
-                return "00:00"
+            """将时间字符串转换为 HH:MM:SS,mmm 格式"""
+            try:
+                if len(time_str) < 4:
+                    logger.warning(f"Invalid timestamp format: {time_str}")
+                    return "00:00:00,000"
                 
-            minutes = int(time_str[-4:-2])
-            seconds = int(time_str[-2:])
-            
-            if seconds >= 60:
-                minutes += seconds // 60
-                seconds = seconds % 60
+                # 处理毫秒部分
+                if ',' in time_str:
+                    time_part, ms_part = time_str.split(',')
+                    ms = int(ms_part)
+                else:
+                    time_part = time_str
+                    ms = 0
                 
-            return f"{minutes:02d}:{seconds:02d}"
+                # 处理时分秒
+                parts = time_part.split(':')
+                if len(parts) == 3:  # HH:MM:SS
+                    h, m, s = map(int, parts)
+                elif len(parts) == 2:  # MM:SS
+                    h = 0
+                    m, s = map(int, parts)
+                else:  # SS
+                    h = 0
+                    m = 0
+                    s = int(parts[0])
+                    
+                # 处理进位
+                if s >= 60:
+                    m += s // 60
+                    s = s % 60
+                if m >= 60:
+                    h += m // 60
+                    m = m % 60
+                    
+                return f"{h:02d}:{m:02d}:{s:02d},{ms:03d}"
+                
+            except Exception as e:
+                logger.error(f"时间戳格式转换错误 {time_str}: {str(e)}")
+                return "00:00:00,000"
         
         first_timestamp = format_timestamp(first_time)
         last_timestamp = format_timestamp(last_time)

app/utils/script_generator.py

@@ -406,22 +406,47 @@ class ScriptProcessor:
     def _save_results(self, frame_content_list: List[Dict]):
         """保存处理结果，并添加新的时间戳"""
         try:
-            # 转换秒数为 MM:SS 格式
-            def seconds_to_time(seconds):
-                minutes = seconds // 60
-                remaining_seconds = seconds % 60
-                return f"{minutes:02d}:{remaining_seconds:02d}"
+            def format_timestamp(seconds: float) -> str:
+                """将秒数转换为 HH:MM:SS,mmm 格式"""
+                hours = int(seconds // 3600)
+                minutes = int((seconds % 3600) // 60)
+                seconds_remainder = seconds % 60
+                whole_seconds = int(seconds_remainder)
+                milliseconds = int((seconds_remainder - whole_seconds) * 1000)
+                
+                return f"{hours:02d}:{minutes:02d}:{whole_seconds:02d},{milliseconds:03d}"
 
             # 计算新的时间戳
-            current_time = 0  # 当前时间点（秒）
+            current_time = 0.0  # 当前时间点（秒，包含毫秒）
 
             for frame in frame_content_list:
                 # 获取原始时间戳的持续时间
                 start_str, end_str = frame['timestamp'].split('-')
 
-                def time_to_seconds(time_str):
-                    minutes, seconds = map(int, time_str.split(':'))
-                    return minutes * 60 + seconds
+                def time_to_seconds(time_str: str) -> float:
+                    """将时间字符串转换为秒数（包含毫秒）"""
+                    try:
+                        if ',' in time_str:
+                            time_part, ms_part = time_str.split(',')
+                            ms = float(ms_part) / 1000
+                        else:
+                            time_part = time_str
+                            ms = 0
+
+                        parts = time_part.split(':')
+                        if len(parts) == 3:  # HH:MM:SS
+                            h, m, s = map(float, parts)
+                            seconds = h * 3600 + m * 60 + s
+                        elif len(parts) == 2:  # MM:SS
+                            m, s = map(float, parts)
+                            seconds = m * 60 + s
+                        else:  # SS
+                            seconds = float(parts[0])
+
+                        return seconds + ms
+                    except Exception as e:
+                        logger.error(f"时间格式转换错误 {time_str}: {str(e)}")
+                        return 0.0
 
                 # 计算当前片段的持续时间
                 start_seconds = time_to_seconds(start_str)
@@ -429,8 +454,8 @@ class ScriptProcessor:
                 duration = end_seconds - start_seconds
 
                 # 设置新的时间戳
-                new_start = seconds_to_time(current_time)
-                new_end = seconds_to_time(current_time + duration)
+                new_start = format_timestamp(current_time)
+                new_end = format_timestamp(current_time + duration)
                 frame['new_timestamp'] = f"{new_start}-{new_end}"
 
                 # 更新当前时间点
@@ -443,7 +468,7 @@ class ScriptProcessor:
             with open(file_name, 'w', encoding='utf-8') as file:
                 json.dump(frame_content_list, file, ensure_ascii=False, indent=4)
 
-            logger.info(f"保存脚本成功，总时长: {seconds_to_time(current_time)}")
+            logger.info(f"保存脚本成功，总时长: {format_timestamp(current_time)}")
 
         except Exception as e:
             logger.error(f"保存结果时发生错误: {str(e)}\n{traceback.format_exc()}")

app/utils/vision_analyzer.py

@@ -10,6 +10,7 @@ from google.api_core import exceptions
 import google.generativeai as genai
 import PIL.Image
 import traceback
+from app.utils import utils
 
 
 class VisionAnalyzer:
@@ -146,14 +147,34 @@ class VisionAnalyzer:
             response_text = result['response']
             image_paths = result['image_paths']
 
-            img_name_start = Path(image_paths[0]).stem.split('_')[-1]
-            img_name_end = Path(image_paths[-1]).stem.split('_')[-1]
-            txt_path = os.path.join(output_dir, f"frame_{img_name_start}_{img_name_end}.txt")
+            # 从文件名中提取时间戳并转换为标准格式
+            def format_timestamp(img_path):
+                # 从文件名中提取时间部分
+                timestamp = Path(img_path).stem.split('_')[-1]
+                try:
+                    # 将时间转换为秒
+                    seconds = utils.time_to_seconds(timestamp.replace('_', ':'))
+                    # 转换为 HH:MM:SS,mmm 格式
+                    hours = int(seconds // 3600)
+                    minutes = int((seconds % 3600) // 60)
+                    seconds_remainder = seconds % 60
+                    whole_seconds = int(seconds_remainder)
+                    milliseconds = int((seconds_remainder - whole_seconds) * 1000)
+                    
+                    return f"{hours:02d}:{minutes:02d}:{whole_seconds:02d},{milliseconds:03d}"
+                except Exception as e:
+                    logger.error(f"时间戳格式转换错误: {timestamp}, {str(e)}")
+                    return timestamp
+
+            start_timestamp = format_timestamp(image_paths[0])
+            end_timestamp = format_timestamp(image_paths[-1])
+            
+            txt_path = os.path.join(output_dir, f"frame_{start_timestamp}_{end_timestamp}.txt")
 
             # 保存结果到txt文件
             with open(txt_path, 'w', encoding='utf-8') as f:
                 f.write(response_text.strip())
-            print(f"已保存分析结果到: {txt_path}")
+            logger.info(f"已保存分析结果到: {txt_path}")
 
     def load_images(self, image_paths: List[str]) -> List[PIL.Image.Image]:
         """