feat(重构): 实现新的渲染服务架构

- 新增 RenderTask

biz/ffmpeg.py

@@ -5,7 +5,10 @@ from concurrent.futures import ThreadPoolExecutor
 
 from opentelemetry.trace import Status, StatusCode
 
+# 使用新架构组件，保持对旧FfmpegTask的兼容
 from entity.ffmpeg import FfmpegTask
+from entity.render_task import RenderTask, TaskType
+from services import DefaultRenderService
 import logging
 
 from util import ffmpeg, oss
@@ -13,6 +16,14 @@ from util.ffmpeg import fade_out_audio
 from telemetry import get_tracer
 
 logger = logging.getLogger('biz/ffmpeg')
+_render_service = None
+
+def _get_render_service():
+    """获取渲染服务实例"""
+    global _render_service
+    if _render_service is None:
+        _render_service = DefaultRenderService()
+    return _render_service
 
 
 def parse_ffmpeg_task(task_info, template_info):
@@ -130,24 +141,25 @@ def check_placeholder_exist_with_count(placeholder_id, task_params, required_cou
 
 
 def start_ffmpeg_task(ffmpeg_task):
+    """启动FFmpeg任务 - 使用新的渲染服务"""
     tracer = get_tracer(__name__)
     with tracer.start_as_current_span("start_ffmpeg_task") as span:
-        for task in ffmpeg_task.analyze_input_render_tasks():
-            result = start_ffmpeg_task(task)
-            if not result:
-                return False
-        ffmpeg_task.correct_task_type()
-        span.set_attribute("task.type", ffmpeg_task.task_type)
-        span.set_attribute("task.center_cut", str(ffmpeg_task.center_cut))
-        span.set_attribute("task.frame_rate", ffmpeg_task.frame_rate)
-        span.set_attribute("task.resolution", str(ffmpeg_task.resolution))
-        span.set_attribute("task.ext_data", json.dumps(ffmpeg_task.ext_data))
-        result = ffmpeg.start_render(ffmpeg_task)
-        if not result:
+        try:
+            # 使用新的渲染服务
+            render_service = _get_render_service()
+            result = render_service.render(ffmpeg_task)
+            
+            if result:
+                span.set_status(Status(StatusCode.OK))
+            else:
+                span.set_status(Status(StatusCode.ERROR))
+            
+            return result
+            
+        except Exception as e:
             span.set_status(Status(StatusCode.ERROR))
+            logger.error(f"FFmpeg task failed: {e}", exc_info=True)
             return False
-        span.set_status(Status(StatusCode.OK))
-        return True
 
 
 def clear_task_tmp_file(ffmpeg_task):
@@ -166,7 +178,8 @@ def clear_task_tmp_file(ffmpeg_task):
 
 
 def probe_video_info(ffmpeg_task):
-    # 获取视频长度宽度和时长
-    return ffmpeg.probe_video_info(ffmpeg_task.get_output_file())
+    """获取视频长度宽度和时长 - 使用新的渲染服务"""
+    render_service = _get_render_service()
+    return render_service.get_video_info(ffmpeg_task.get_output_file())