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I am trying to get started using this FFmpeg "complete, cross-platform solution".
The home page has a line of code that says:
$ ffmpeg -i input.mp4 output.avi
When I plug this code into my command prompt, I get the following message:
'$' is not recognized as an internal or external command,
operable program or batch file.
What you are doing wrong is to copying the '$' as part of the command.
ffmpeg -i input.mp4 output.avi
would do the trick.
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Closed 3 days ago.
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I'm recording the screen with a microphone and I want to turn the volume down to 0 or turn it up to 1, how can I do this while recording?
ffmpeg -f avfoundation -i 1:0 -af volume=1 output.mkv
I tried to press the C key and write to the console -af volume=0 but it does not work
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Closed 6 years ago.
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I was wondering how can I use ffmpeg.dmg on Mac same way as ffmpeg.exe on windows via bat files? without installing ffmpeg on the PC.
For example if I wanted to create a thumbnial from video file I type this line in a text file and rename it to xxxx.bat and place it beside the exe
ffmpeg.exe -i "input.mp4" -an -ss 00:00:02 -an -r 1 -vframes 1 -s 512x512 -y "output.jpg"
anyway to do the same on mac? I tried renaming ffmpeg.exe to ffmpeg.dmg and xxxx.bat to xxxx.command thought it was that simple :) but of course didn't work.
You can download compiled binaries of ffmpeg for Mac as well here.
For the batch-thingy you can find more information over here as it needs more than typing and a double click in Mac appearentely.
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Closed 6 years ago.
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I downloaded and installed sox using the Mac OS X binary.
I am trying to run it using sox in the terminal but I keep getting command not found.
Make sure its on your PATH if you are calling it as sox. If it's not you have 2 options:
Add the directory it was installed to to your PATH
Give a path to the sox binary as the call instead. For example (I used homebrew to install sox) my binary is at /usr/local/bin/sox so my command would start with that. If you'd like you can also use alias to shorten that.
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Closed 6 years ago.
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I downloaded ffmpeg 3.1.1 but there is no .exe or .bat file to run from the command line. I searched for answers. Apparently, there should be a \bin folder. I end up with a lot of folders but no such folder and no executable file. All ffmpeg files have a .c extension or other extensions but nothing that can be run from the command line.
You downloaded the source code, but you probably expected an executable file. FFmpeg only provides the source code, but some third-party volunteers do provide executables:
Windows - Zeranoe FFmpeg builds
Linux - Relaxed FFmpeg builds
macOS - Evermeet FFmpeg builds & Zeranoe FFmpeg builds
Also see What is the difference between ffmpeg packages and sources?
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Closed 8 years ago.
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I just find tar, unzip, bunzip2, 7z, unrar, gunzip, all do not work for bz2 files.
Is there a simple method to do that?
Or where can I download a rpm file to install?
bunzip2 should work flawlessly, as should the -j option to tar. If they don't, you're doing something wrong, and should post the command line plus the error message.
If in doubt, run file on the archive to make sure it actually is compressed in bz2 format (and not just named like that).