only if 逻辑

biz/ffmpeg.py

@@ -20,6 +20,11 @@ def parse_ffmpeg_task(task_info, template_info):
         if not source:
             logger.warning("no video found for part: " + str(part))
             continue
+        only_if = part.get('only_if', '')
+        if only_if:
+            if not check_placeholder_exist(only_if, task_params):
+                logger.info("because only_if exist, placeholder: %s not exist, skip part: %s", only_if, part)
+                continue
         sub_ffmpeg_task = FfmpegTask(source)
         sub_ffmpeg_task.annexb = True
         sub_ffmpeg_task.frame_rate = template_info.get("frame_rate", 25)
@@ -66,6 +71,17 @@ def parse_video(source, task_params, template_info):
     return os.path.join(template_info.get("local_path"), source)
 
 
+def check_placeholder_exist(placeholder_id, task_params):
+    if placeholder_id in task_params:
+        new_sources = task_params.get(placeholder_id, [])
+        if type(new_sources) is list:
+            if len(new_sources) == 0:
+                return False
+            else:
+                return True
+        return True
+    return False
+
 def start_ffmpeg_task(ffmpeg_task):
    for task in ffmpeg_task.analyze_input_render_tasks():
        start_ffmpeg_task(task)

util/api.py

@@ -101,6 +101,9 @@ def get_template_info(template_id):
         _luts = template_info.get('luts', '')
         if _luts:
             _template['luts'] = _luts.split(",")
+        _only_if = template_info.get('onlyIf', '')
+        if _only_if:
+            _template['only_if'] = _only_if
         return _template
 
     # outer template definition