From 1b82db1493ed5c8d3f1c5662f17ec8a182351da1 Mon Sep 17 00:00:00 2001
From: ericwyuan <ericwyuan@example.com>
Date: Thu, 20 Aug 2026 18:28:14 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20NAS=E5=8E=8B=E7=BC=A9=E8=BE=93=E5=87=BA?=
 =?UTF-8?q?=E6=98=BE=E5=BC=8F=E6=8C=87=E5=AE=9A=20-f=20mp4=20=E2=80=94=20.?=
 =?UTF-8?q?tmp=20=E6=89=A9=E5=B1=95=E5=90=8D=E5=AF=BC=E8=87=B4=20ffmpeg41?=
 =?UTF-8?q?=20=E6=97=A0=E6=B3=95=E6=8E=A8=E6=96=AD=20muxer?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 fam-core/src/fam_core/dispatcher/dispatcher.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fam-core/src/fam_core/dispatcher/dispatcher.py b/fam-core/src/fam_core/dispatcher/dispatcher.py
index 81562ab..ff74167 100644
--- a/fam-core/src/fam_core/dispatcher/dispatcher.py
+++ b/fam-core/src/fam_core/dispatcher/dispatcher.py
@@ -178,6 +178,7 @@ class Dispatcher:
                      'scale=trunc(iw/2)*2:trunc(ih/2)*2'),
             '-c:v', 'libx264', '-preset', 'veryfast', '-crf', '28',
             '-an',
+            '-f', 'mp4',  # .tmp 扩展名无法推断 muxer，必须显式指定
             tmp_path,
         ]
         try: