FFmpeg: building example C codes

Question

I have configured and compiled the FFmpeg library using this link: https://trac.ffmpeg.org/wiki/CompilationGuide/Ubuntu

Now, I am trying to build example C codes provided by FFmpeg from here: https://github.com/FFmpeg/FFmpeg/tree/master/doc/examples

However, when I run make install-examples or make install (suggested by /example/README), I receive this kind of message:

make: *** No rule to make target '/doc/examples/README', needed by 'install-examples'. Stop.

I thought this may be due to the rules not being in the correct MakeFile format (I am not sure why they refers to README). How should I go about in fixing this and compiling the example codes? I have tried to find solutions about this, but there doesn't seem to be much information online.

Thank you.

I think you are supposed to use make examples, or just make ... — l'L'l
– l'L'l, Commented Jun 25, 2018 at 21:42

llogan · Accepted Answer · 2019-11-27 19:31:17Z

9

Run ./configure && make -j4 examples in the FFmpeg source directory, then look in doc/examples for the compiled examples.

Requires make and pkg-config.
To remove the compiled examples use make examplesclean in the FFmpeg source directory.

edited Nov 27, 2019 at 19:31

answered Jun 25, 2018 at 21:50

llogan

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1 Comment

Ken Krige Over a year ago

Thanks very much @llogan for the helpful answer. This worked perfectly after I had struggled for hours on this problem. Are you able to explain why this is necessary to help with further compiling as I would like to modify some of the examples and compile and I would very much like to streamline the process.

Vetagiri Hrushikesh · Accepted Answer · 2020-09-28 22:09:54Z

nasm/yasm not found or too old. Use --disable-x86asm for a crippled build. If you think to configure made a mistake, make sure you are using the latest version from Git. If the latest version fails, report the problem to [email protected] mailing list or IRC #ffmpeg on irc.freenode.net.Include the log file "ffbuild/config.log" produced by configure as this will help solve the problem.

If you see this when you execute the above command then do this
macOS: brew install yasm

Ubuntu: sudo apt-get install yasm

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