Creating avi.s adds black bars top and bottom

Compression Techniques

Creating avi.s adds black bars top and bottom

Posted by Criis Daw on November 7, 2013 at 4:08 pm

Hi..

CAn Anyone help me ?

I am trying to covert a 720×450 mov to a 720x 450 avi.

when I do it the result has black bars top and bottom and I was hoping somebody could help me fix this.

The setting I am using are

MPEG4 (.AVI)(ffmpeg)
bit rate 3000kbit/s

video size 720×450
unconstrained
29.97

. The avi says it is 720×450 but why have the bars been added ???

thanks if you can help

Criis Daw replied 12 years, 6 months ago 3 Members · 6 Replies
6 Replies

Lou Logan
November 7, 2013 at 11:08 pm

You need to at least show your ffmpeg command and the complete console output.

What player are you using?
Criis Daw
November 8, 2013 at 10:10 am

Is this what you mean ? sorry I dont really understand this software

FFmpeg version CVS, Copyright (c) 2000-2004 Fabrice Bellard
Mac OSX universal build for ffmpegX
libavutil version: 49.0.0
libavcodec version: 51.9.0
libavformat version: 50.4.0
Fri Nov 8 10:08:36 GMT 2013
movtoy4m
Copyright 2002-2006 Johan Lindstr√∂m
All rights reserved..
objc[403]: Class TSSandboxPrefs is implemented in both /Library/Frameworks/TSLicense.framework/Versions/A/TSLicense and /Library/QuickTime/Flip4Mac WMV Import.component/Contents/MacOS/Flip4Mac WMV Import. One of the two will be used. Which one is undefined.
objc[403]: Class TSSandboxPrefs is implemented in both /Library/Frameworks/TSLicense.framework/Versions/A/TSLicense and /Library/QuickTime/Flip4Mac WMV Advanced.component/Contents/MacOS/Flip4Mac WMV Advanced. One of the two will be used. Which one is undefined.
Input #0, yuv4mpegpipe, from ‘pipe:’:
Duration: N/A, bitrate: N/A
Stream #0.0, 29.97 fps(r): Video: rawvideo, yuv420p, 720×450
Output #0, avi, to ‘/Users/christopherdaw/Desktop/Halifax_Phase3 /RENDERs/AM Screens/AM SCREEN mov/AMScreen_(720×450)_ATM .mov.ff.avi.e.avi’:
Stream #0.0, 29.97 fps(c): Video: mpeg4, yuv420p, 720×450, q=2-15, 3000 kb/s
Stream mapping:
Stream #0.0 -> #0.0
video:4478kB audio:0kB global headers:0kB muxing overhead 0.581535%
bench: utime=1.933s
Encoding completed on Fri Nov 8 10:08:45 GMT 2013
Lou Logan
November 11, 2013 at 7:43 pm

Are you actually using ffmpeg?
Criis Daw
November 11, 2013 at 9:01 pm

FFmpeg version CVS, Copyright (c) 2000-2004 Fabrice Bellard
Mac OSX universal build for ffmpegX

I guess so.
Reuben Martin
November 12, 2013 at 5:39 pm

ffmpegX is not the same as ffmpeg. It is a front end that comes with a very old version of ffmpeg.

I would suggest ditching ffmpegX and installing the real thing. This will require learning to use ffmpeg from a terminal. It is a steeper learning curve, but once you get the hang of it, you’ll probably start to prefer the CLI interface. The added bonus is that you can copy/paste the command used so that people on forums like this can help you. When using a front end like ffmpegX, we have no way of knowing what options were set in the GUI interface. Furthermore, there are lots of options available that the GUI does not expose.

MacPorts is a good resource to use for installing ffmpeg on OSX.
Criis Daw
November 12, 2013 at 10:19 pm

Oh my word.

Thanks for your detailed response. I might just find someone else to it .
Not sure I have time for all that right now.

I was only using this old software as the tech bods who own the screens where our video will be displayed recommended using it.

It all sounds rather complicated.. terminal windows scare the pants out of me !!!

Thanks

Chris

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