From b4503a183cd9c87dcfa0b647b59b3bac060e7ad1 Mon Sep 17 00:00:00 2001
From: Davide Depau <davide@depau.eu>
Date: Thu, 21 Dec 2017 17:40:35 +0100
Subject: [PATCH] Allow output to be created without mapped streams

---
 ffmpeg/_ffmpeg.py | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/ffmpeg/_ffmpeg.py b/ffmpeg/_ffmpeg.py
index 7153fc5..826497d 100644
--- a/ffmpeg/_ffmpeg.py
+++ b/ffmpeg/_ffmpeg.py
@@ -61,9 +61,6 @@ def output(*streams_and_filename, **kwargs):
         kwargs['filename'] = streams_and_filename.pop(-1)
     streams = streams_and_filename
 
-    if len(streams) < 1:
-        raise ValueError("You must specify at least one stream to produce an output")
-
     fmt = kwargs.pop('f', None)
     if fmt:
         if 'format' in kwargs: