[FFmpeg-user] how to convert *.cin into *.avi?

peter.lysyansky at gmail.com peter.lysyansky at gmail.com
Sat Sep 19 23:56:24 EEST 2020

Thank you for helpful recommendations.

This is my first experience with FFmpeg

Please see my comments below.


Best regards,



From: Jim DeLaHunt <list+ffmpeg-user at jdlh.com> 
Sent: Saturday, September 19, 2020 10:25 PM
To: peter.lysyansky at gmail.com
Cc: ffmpeg-user at ffmpeg.org
Subject: Re: [FFmpeg-user] how to convert *.cin into *.avi?


On 2020-09-19 02:26, peter.lysyansky at gmail.com <mailto:peter.lysyansky at gmail.com>  wrote:

The FFmpeg command: 

>ffmpeg -i usimage200001010021041935.cin usimage200001010021041935.avi

And the result is:

"usimage200001010021041935.cin: Invalid data found when processing input"

[…image deleted…]

For the next time, please do not send a screen shot of a Command Prompt window. Instead, copy the text from the Command Prompt window and paste that text into your message. It is easier to read and modify text than a picture (of a Command Prompt window).  Giving readers of the list text instead of a picture reduces the work they have to do in order to understand your situation. It demonstrates respect, and might lead to more offers of help.

Fortunately, the FFmpeg run you posted was short and simple, so people who want to help will probably look at the screen shot.

It looks like the FFmpeg version you are running is dated 2020-08-31. (I'd copy and paste the exact version string, but I can't, because it's a picture not text.) That is recent, but not current. One step you can take is to get the absolute latest copy of FFmpeg and try again. It's possible that a relevant bug in FFmpeg got fixed in the last three weeks.

Here is my version: ffmpeg version git-2020-08-31-4a11a6f Copyright (c) 2000-2020 the FFmpeg developers

built with gcc 10.2.1 (GCC) 20200805

How can I get the latest version?

The error message, "Invalid data found when processing input", implies to me that 1. FFmpeg thinks it supports this file format, and 2. that the file you supplied appears to not conform to that file format.  

How confident are you that the contents of the file are correctly formatted?

All cin files are exported from the official SonoTouch ultrasound scanner, but I cannot confirm they are correct. Can ffmpeg display details - what's wrong in the file?

Does this same command line succeed with other *.cin files which you have?

Yes, I checked other files- the result is the same.

One final suggestion. It's great that you have sample files for testing by the people who help you. However, it is better to put them on a server somewhere and send a link to the file, instead of attaching the file to a message sent to the list. 9MB of attachments * many hundreds or thousands of subscribers to this list = a lot of disk space around the world consumed by these attachments. What I typically do is put the file in a public folder on my free Dropbox account, and have Dropbox give me a sharing link to that file.  Then I can send just the link.

Below is the link to demo.cin file in my Dropbox:


I hope this is helpful for you. Best regards,
    —Jim DeLaHunt


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