diff --git a/.gitignore b/.gitignore
index c2044f4..6054df3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,6 +6,11 @@ __pycache__/
 *.so
 .Python
 build/
+dist/
+*.mp4
+*.ts
+rand*.ts
+tmp_concat_*.txt
 *.egg-info/
 *.egg
 *.manifest
diff --git a/biz/ffmpeg.py b/biz/ffmpeg.py
index 927637c..b58c86a 100644
--- a/biz/ffmpeg.py
+++ b/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)
@@ -33,6 +38,7 @@ def parse_ffmpeg_task(task_info, template_info):
     output_file = "out_" + str(time.time()) + ".mp4"
     task = FfmpegTask(tasks, output_file=output_file)
     overall = template_info.get("overall_template")
+    task.center_cut = template_info.get("crop_mode", None)
     task.frame_rate = template_info.get("frame_rate", 25)
     if overall.get('source', ''):
         source = parse_video(overall.get('source'), task_params, template_info)
@@ -66,9 +72,22 @@ 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)
+       result = start_ffmpeg_task(task)
+       if not result:
+           return False
    ffmpeg_task.correct_task_type()
    return ffmpeg.start_render(ffmpeg_task)
 
diff --git a/entity/ffmpeg.py b/entity/ffmpeg.py
index 89f411c..71a3c18 100644
--- a/entity/ffmpeg.py
+++ b/entity/ffmpeg.py
@@ -1,6 +1,9 @@
 import time
 import uuid
 
+ENCODER_ARGS = ("-c:v", "h264_qsv", "-global_quality", "28", "-look_ahead", "1",)
+PROFILE_LEVEL_ARGS = ("-profile:v", "high", "-level:v", "4")
+
 
 class FfmpegTask(object):
 
@@ -14,6 +17,9 @@ class FfmpegTask(object):
             self.input_file = input_file
         else:
             self.input_file = []
+        self.zoom_cut = None
+        self.center_cut = None
+        self.ext_data = {}
         self.task_type = task_type
         self.output_file = output_file
         self.mute = True
@@ -101,6 +107,10 @@ class FfmpegTask(object):
             return False
         if self.speed != 1:
             return False
+        if self.zoom_cut is not None:
+            return False
+        if self.center_cut is not None:
+            return False
         return True
 
     def check_can_copy(self):
@@ -116,6 +126,10 @@ class FfmpegTask(object):
             return False
         if len(self.input_file) > 1:
             return False
+        if self.zoom_cut is not None:
+            return False
+        if self.center_cut is not None:
+            return False
         return True
 
     def check_audio_track(self):
@@ -125,16 +139,16 @@ class FfmpegTask(object):
     def get_ffmpeg_args(self):
         args = ['-y', '-hide_banner']
         if self.task_type == 'encode':
-            # args += ('-hwaccel', 'qsv', '-hwaccel_output_format', 'qsv')
             input_args = []
             filter_args = []
-            output_args = ["-shortest", "-c:v", "h264_qsv", "-global_quality", "28", "-look_ahead", "1"]
+            output_args = ["-profile", "high", "-level", "4","-shortest", *ENCODER_ARGS]
             if self.annexb:
                 output_args.append("-bsf:v")
                 output_args.append("h264_mp4toannexb")
+                output_args.append("-reset_timestamps")
+                output_args.append("1")
             video_output_str = "[0:v]"
             audio_output_str = "[0:v]"
-            video_input_count = 0
             audio_input_count = 0
             for input_file in self.input_file:
                 input_args.append("-i")
@@ -142,8 +156,14 @@ class FfmpegTask(object):
                     input_args.append(input_file)
                 elif isinstance(input_file, FfmpegTask):
                     input_args.append(input_file.get_output_file())
+            if self.center_cut == 1:
+                pos_json = self.ext_data.get('posJson', {})
+                _v_w = pos_json.get('imgWidth', 1)
+                _f_x = pos_json.get('ltX', 0)
+                _x = f'{float(_f_x/_v_w) :.5f}*iw'
+                filter_args.append(f"[{video_output_str}]crop=x={_x}:y=0:w=ih*ih/iw:h=ih[{video_output_str}]")
             for lut in self.luts:
-                filter_args.append("[0:v]lut3d=file=" + lut + "[0:v]")
+                filter_args.append(f"[{video_output_str}]lut3d=file={lut}[{video_output_str}]")
             for overlay in self.overlays:
                 input_index = input_args.count("-i")
                 input_args.append("-i")
@@ -202,9 +222,8 @@ class FfmpegTask(object):
                     output_args.append("copy")
                 output_args.append("-f")
                 output_args.append("mp4")
-                output_args += ("-c:v", "h264_qsv", "-r", "25", "-global_quality", "28", "-look_ahead", "1")
                 return args + input_args + output_args + [self.get_output_file()]
-            output_args += ("-c:v", "h264_qsv", "-r", "25", "-global_quality", "28", "-look_ahead", "1")
+            output_args += ["-r", f"{self.frame_rate}", *PROFILE_LEVEL_ARGS, *ENCODER_ARGS]
             filter_args = []
             video_output_str = "[0:v]"
             audio_output_str = "[0:a]"
diff --git a/index.py b/index.py
index 09197b7..84e4958 100644
--- a/index.py
+++ b/index.py
@@ -5,15 +5,36 @@ import config
 from template import load_local_template
 from util import api
 
-load_local_template()
+import os
+import glob
 
+load_local_template()
+import logging
+
+LOGGER = logging.getLogger(__name__)
 
 while True:
     # print(get_sys_info())
     print("waiting for task...")
-    task_list = api.sync_center()
+    try:
+        task_list = api.sync_center()
+    except Exception as e:
+        LOGGER.error("sync_center error", exc_info=e)
+        sleep(5)
+        continue
     if len(task_list) == 0:
+        # 删除当前文件夹下所有以.mp4、.ts结尾的文件
+        for file_globs in ['*.mp4', '*.ts', 'tmp_concat*.txt']:
+            for file_path in glob.glob(file_globs):
+                try:
+                    os.remove(file_path)
+                    print(f"Deleted file: {file_path}")
+                except Exception as e:
+                    LOGGER.error(f"Error deleting file {file_path}", exc_info=e)
         sleep(5)
     for task in task_list:
         print("start task:", task)
-        biz.task.start_task(task)
+        try:
+            biz.task.start_task(task)
+        except Exception as e:
+            LOGGER.error("task_start error", exc_info=e)
diff --git a/template/__init__.py b/template/__init__.py
index 381860a..1f9bbfa 100644
--- a/template/__init__.py
+++ b/template/__init__.py
@@ -88,8 +88,8 @@ def download_template(template_id):
                 new_fp = os.path.join(template_info['local_path'], _fn)
                 oss.download_from_oss(_template['source'], new_fp)
                 if _fn.endswith(".mp4"):
-                    from util.ffmpeg import to_annexb
-                    new_fp = to_annexb(new_fp)
+                    from util.ffmpeg import re_encode_and_annexb
+                    new_fp = re_encode_and_annexb(new_fp)
                 _template['source'] = os.path.relpath(new_fp, template_info['local_path'])
         if 'overlays' in _template:
             for i in range(len(_template['overlays'])):
diff --git a/util/api.py b/util/api.py
index 46c698e..f264490 100644
--- a/util/api.py
+++ b/util/api.py
@@ -73,7 +73,7 @@ def get_template_info(template_id):
         'scenic_name': remote_template_info.get('scenicName', '景区'),
         'name': remote_template_info.get('name', '模版'),
         'video_size': '1920x1080',
-        'frame_rate': 30,
+        'frame_rate': 25,
         'overall_duration': 30,
         'video_parts': [
 
@@ -90,6 +90,7 @@ def get_template_info(template_id):
             # 占位符
             _template['source'] = "PLACEHOLDER_" + template_info.get('sourceUrl', '')
             _template['mute'] = template_info.get('mute', True)
+            _template['crop_mode'] = template_info.get('cropEnable', None)
         else:
             _template['source'] = None
         _overlays = template_info.get('overlays', '')
@@ -101,6 +102,9 @@ 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
@@ -165,7 +169,7 @@ def upload_task_file(task_info, ffmpeg_task):
     logger.info("开始上传文件: %s 至 %s", task_info.get("id"), url)
     try:
         with open(ffmpeg_task.get_output_file(), 'rb') as f:
-            requests.put(url, data=f)
+            requests.put(url, data=f, headers={"Content-Type": "video/mp4"})
     except requests.RequestException as e:
         logger.error("上传失败！", e)
         return False
diff --git a/util/ffmpeg.py b/util/ffmpeg.py
index 1065570..f572f78 100644
--- a/util/ffmpeg.py
+++ b/util/ffmpeg.py
@@ -4,7 +4,7 @@ import subprocess
 from datetime import datetime
 from typing import Optional, IO
 
-from entity.ffmpeg import FfmpegTask
+from entity.ffmpeg import FfmpegTask, ENCODER_ARGS, PROFILE_LEVEL_ARGS
 
 logger = logging.getLogger(__name__)
 
@@ -21,6 +21,19 @@ def to_annexb(file):
     else:
         return file
 
+def re_encode_and_annexb(file):
+    if not os.path.exists(file):
+        return file
+    logger.info("ReEncodeAndAnnexb: %s", file)
+    ffmpeg_process = subprocess.run(["ffmpeg", "-y", "-hide_banner", "-i", file, *PROFILE_LEVEL_ARGS, *ENCODER_ARGS, "-bsf:v", "h264_mp4toannexb",
+                    "-f", "mpegts", file +".ts"])
+    logger.info("ReEncodeAndAnnexb: %s, returned: %s", file, ffmpeg_process.returncode)
+    if ffmpeg_process.returncode == 0:
+        os.remove(file)
+        return file+".ts"
+    else:
+        return file
+
 def start_render(ffmpeg_task: FfmpegTask):
     logger.info(ffmpeg_task)
     if not ffmpeg_task.need_run():
@@ -34,7 +47,18 @@ def start_render(ffmpeg_task: FfmpegTask):
     ffmpeg_process = subprocess.run(["ffmpeg", "-progress", "-", "-loglevel", "error", *ffmpeg_args], **subprocess_args(True))
     logger.info("FINISH TASK, OUTPUT IS %s", handle_ffmpeg_output(ffmpeg_process.stdout))
     code = ffmpeg_process.returncode
-    return code == 0
+    if code != 0:
+        logger.error("FFMPEG ERROR: %s", ffmpeg_process.stderr)
+        return False
+    try:
+        out_file_stat = os.stat(ffmpeg_task.output_file)
+        if out_file_stat.st_size < 4096:
+            logger.error("FFMPEG ERROR: OUTPUT FILE IS TOO SMALL")
+            return False
+    except OSError:
+        logger.error("FFMPEG ERROR: OUTPUT FILE NOT FOUND")
+        return False
+    return True
 
 def handle_ffmpeg_output(stdout: Optional[bytes]) -> str:
     out_time = "0:0:0.0"
@@ -69,6 +93,8 @@ def probe_video_info(video_file):
         stderr=subprocess.STDOUT,
         **subprocess_args(True)
     )
+    if result.returncode != 0:
+        return 0, 0, 0
     all_result = result.stdout.decode('utf-8').strip()
     wh, duration = all_result.split('\n')
     width, height = wh.strip().split('x')
diff --git a/util/oss.py b/util/oss.py
index 140dba1..e41f6d1 100644
--- a/util/oss.py
+++ b/util/oss.py
@@ -13,13 +13,22 @@ def upload_to_oss(url, file_path):
     :param str file_path: 文件路径
     :return bool: 是否成功
     """
-    with open(file_path, 'rb') as f:
+    max_retries = 5
+    retries = 0
+    while retries < max_retries:
         try:
-            response = requests.put(url, data=f)
-            return response.status_code == 200
+            with open(file_path, 'rb') as f:
+                response = requests.put(url, data=f, timeout=60)  # 设置超时时间为1分钟
+                if response.status_code == 200:
+                    return True
+        except requests.exceptions.Timeout:
+            retries += 1
+            logger.warning(f"Upload timed out. Retrying {retries}/{max_retries}...")
         except Exception as e:
-            print(e)
-            return False
+            logger.warning(f"Upload failed. Retrying {retries}/{max_retries}...")
+            retries += 1
+    return False
+
 
 def download_from_oss(url, file_path):
     """
@@ -33,11 +42,18 @@ def download_from_oss(url, file_path):
     if file_dir:
         if not os.path.exists(file_dir):
             os.makedirs(file_dir)
-    try:
-        response = requests.get(url)
-        with open(file_path, 'wb') as f:
-            f.write(response.content)
-        return True
-    except Exception as e:
-        print(e)
-        return False
+    max_retries = 5
+    retries = 0
+    while retries < max_retries:
+        try:
+            response = requests.get(url, timeout=15)  # 设置超时时间
+            with open(file_path, 'wb') as f:
+                f.write(response.content)
+            return True
+        except requests.exceptions.Timeout:
+            retries += 1
+            logger.warning(f"Download timed out. Retrying {retries}/{max_retries}...")
+        except Exception as e:
+            logger.warning(f"Download failed. Retrying {retries}/{max_retries}...")
+            retries += 1
+    return False