i want to add 1 black frame to 100 clips, but the process should be fast, file will be h264 24p
		
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	far too few details to really help, so let's assume your clips all are: 
 - already in the target format and have the same characteristics (resolution and format parameters)
 - have no audio
 - you want to append that frame to the start or the end
 you could create a single 1 frame long clip with the same format characteristics and use for example ffmpeg to append that frame to any of your clips using a batch file.users currently on my ignore list: deadrats, Stears555, marcorocchini
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	- already in the target format and have the same characteristics (resolution and format parameters) 
 yes
 - have no audio
 have audio, but all have same format just like video
 - you want to append that frame to the start or the end
 doesnt matter start or end just add 1 frame or 10 or 1 sec clip
 
 the problem is i dont know and i tried ffmpeg but it didnt works, so is there any software, to do so.
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	Since you already have the Black video in the right format, you can use the following batch to add it to each file in the folder. I ran it in a folder with all the MP4's and the black.mp4 and the CMD file. It created all files with a black leader, even the Black file had a black leader but just delete it. 
 
 create the following and save it as whatever.CMD
 
 It automatically make a new list with Black first and each video 2nd and then concatenates them. You should end up with a folder like the following:Code:for %%a in (*mp4) Do ( @echo file 'Black480 X 270_1.mp4' > mylist.txt @echo file '%%a' >> mylist.txt ffmpeg -safe 0 -f concat -i "mylist.txt" -c copy -y "%%~dpna_wframe.mp4" ) 
 
 
 [Attachment 52270 - Click to enlarge]
 
 Pay no attention to the fact that the thumbnail is not Black. My thumbnail provider is not set to the first frame and I have never bothered to change it but the video plays with 1 second black frame before video starts.
 
 
 [Attachment 52272 - Click to enlarge]Last edited by Budman1; 7th Mar 2020 at 23:58. Reason: better image 
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