`ffmpeg` is a free software project aimed at producing tools (libraries and programs) for handling multimedia data.
10
votes
2answers
3k views
How to record my full screen with audio?
If I want to record my desktop, I use:
ffmpeg -f x11grab -s `xdpyinfo | grep -i dimensions: | sed 's/[^0-9]*pixels.*(.*).*//' | sed 's/[^0-9x]*//'` -r 25 -i :0.0 -sameq valami.avi
But it doesn't ...
3
votes
1answer
714 views
FFMPEG video to FLV conversion optimization
Would anyone have any tips on optimizing video to FLV conversion using ffmpeg so I would get a medium quality video which is not very large?
I have a video site where users can upload videos which ...
2
votes
1answer
3k views
ffmpeg and libmp3lame produces bad audio quality?
when I get a flash video from YouTube, why is the quality of the audio much worse than the origin video on YouTube? When I downloaded the flash movie, I convert it to avi like this:
ffmpeg -i ...
3
votes
1answer
410 views
How to get lilbmp3lame encoding to work with ffmpeg?
When I am converting an FLV to an AVI one, I always get:
Unknown encoder 'libmp3lame'
But I've installed it with Ubuntu Software Center.
I am using this command:
ffmpeg -i video.flv -acodec ...
2
votes
2answers
381 views
No output produced when using winFF
I am using winFF in Ubuntu 10.04. WinFF is a graphical frontend to ffmpeg.
Typically, after selecting a file in WinFF, setting my conversion settings and pressing the "Convert" button, a console ...
2
votes
3answers
1k views
installing ffmpeg-php on centos
With the help of this guide, I am trying to install ffmpeg using these commands:
# cd ffmpeg-php/branches/ffmpeg-php/ffmpeg-php-0.6.1/
# replace 'PIX_FMT_RGBA32' 'PIX_FMT_RGB32' -- *
# phpize
# ...
17
votes
7answers
11k views
How to grep standard error stream (stderr)?
I am using ffmpeg to get the meta info of an audio clip. But I am unable to grep it.
$ ffmpeg -i 01-Daemon.mp3 |grep -i Duration
FFmpeg version SVN-r15261, Copyright (c) 2000-2008 Fabrice ...
8
votes
5answers
3k views
How do I merge two *.avi files into one
I have two *.avi files:
sequence1.avi
sequence2.avi
How do I merge these two files using a command-line or GUI?
9
votes
3answers
11k views
How can I use ffmpeg to split MPEG video into 10 minute chunks for YouTube upload?
There is often a need in the open source or active developer community to publish large video segments online. (Meet-up videos, campouts, tech talks...) Being that I am a developer and not a ...
4
votes
3answers
878 views
Transcoding MJPEG Stream to FLV or MP4
I want to transcode MJPEG stream that comes from IP camera (http://xx.yy.zz.tt:8080/video.cgi) to FLV or MP4 stream under Linux OS so that users can play the file using a web based Flash player such ...
