[MPlayer-users] Creating Thumbnails of Videos

Ruchira Randana Galappaththi ruchiram4 at yahoo.com
Mon Sep 21 13:26:12 CEST 2009

Thank you so much for your timely responses.

Actually, in the MAC machines, it does display different values for the dimension of the video.
So, now I'm stuck with the problem of identifying what meta data represents that.
The problem is that, the user can send e-mail attachments of the video and upload the content.
He cannot specify the orientation of the video. If there is a way to identify such details from a windows machine, it would be fine.

If anyone is aware of how to extract the specific data which represents the orientation, please let me know.

Thanks in anticipation.

From: Oliver Seitz <info at vtnd.de>
To: "MPlayer usage questions, feature requests, bug reports" <mplayer-users at mplayerhq.hu>
Sent: Monday, September 21, 2009 4:06:04 PM
Subject: Re: [MPlayer-users] Creating Thumbnails of Videos

> On Mon, Sep 21, 2009 at 11:52:09AM +0200, Oliver Seitz wrote:
>> > Hi, I'm using MPlayer to automatically create thumbnails from a video.
>> I
>> > can successfully create thumbnails, but I cannot figure out a way to
>> > identify the orientation of the video.
>> So some of your videos are, say, 640x480, while others are 480x640? Or
>> are
>> they always 640x480 and the camera was held sideways when recording? In
>> this second case it's quite simple: It can't be done.
> Not completely true, the mov file _can_ contain such information.
> You'll still have to find some way to extract it yourself, neither
> MPlayer nor FFmpeg support it so far.

Oh, thank you, didn't know that. It seems though that users may upload
videos of which those thumnails are to be created. I would in that case
provide four checkboxes to the uploader to indicate the bottom side of the
video. I think that would be the most reliable information on that matter
you can get.


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