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1

ffmpeg -i video.mp4 -vn -acodec copy audio.aac Here’s a short explanation on what every parameter does: -i “input file” -vn “skip the video part” -acodec copy "copy audio stream".


0

I think if you parse ffmpeg output you could achieve this in part, but beware the labyrinthe documentation on how to encode for best results. It's a little tricky. Perhaps an alternate approach is to find a common standard whose parameters can be set one, and leave your transcoder job running on all A, B, etc.


0

No It is not possible to have all the parameters same as B. We need to compromise or adjust some attribute of the Video A, so that the other attribute of the video A matches with the video B. Hope this helps!


-1

Disable hardware acceleration of flash. Open the online video that's slow. Right-click on the flash video. Click Settings. In the Flash Player Settings uncheck the box "Enable hardware acceleration" and then click close.


0

From Pier's link, specifically: ffmpeg -i video.avi -vf subtitles=subtitle.srt out.avi I've used this successfully with the current static git ffmpeg release.


4

In the general case, this could be difficult to do. But you are looking at a video. The simplest solution here would be that they placed it into a tag. The first thing I'd do is examine the tags. If you have it, run mediainfo on the file. Do you see your username in the output? If so, it's just in a tag. You could grab a tag editor and manipulate the ...


1

I would suggest getting familiar with MELT. Edit: Upon further research your answer may be found at askubuntu


2

There is a developer saying that the libdv module is deprecated in the later builds, here. Excerpt: A next thing I saw was in the configuration wizard that the DV module (libdv) is not checked (so not installed). But if I look in Synaptic then I see that libdv4 version 1.0.0-6 is installed. (0010239) pez4brian (developer) 2014-08-16 ...


0

I found a solution to this problem as @don_crissti suggested this thread, that had the fix. Excerpt: sudo yum install libv4l-devel sudo ln -s /usr/include/libv4l1-videodev.h /usr/include/linux/videodev.h If the link(note this was after trying another solution which was symlinking a file to this same address) exists as it did for me, delete it and run ...


0

As @don_crissti suggested the instructions from this thread resolved the issue: yum install libdv-devel then there where a lot of missing dependencies/problems, but kino suggested fixes and using yum whatprovides PACKAGENAMEHERE or COMMAND or MODULE or yum search PACKAGENAMEHERE or yum list PACKAGENAMEHERE solved the remaining errors, except one, ...


0

What worked for me was removing AMD graphic drivers, whch were probably installed by that ppa(I also purged that ppa).


1

For me, the answer was to use ffcast with ffmpeg like so: ffcast -w % ffmpeg -f x11grab -show_region 1 -framerate 20 -video_size %s -i %D+%c -codec:v huffyuv -vf crop="iw-mod(iw\\,2):ih-mod(ih\\,2)" out.avi I then used ffmpeg to do the conversion from avi to gif - it's very fast and it keeps the framerate intact: ffmpeg -i out.avi -pix_fmt rgb24 out.gif ...



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