error: 'libavcodec/avcodec.h' file not found

[dht-hedaihua]

Hi,i wonder to use reisen on my Mac,but unfortunately i encountered some problems ：

Looking forward to your reply, thank you！

[zergon321]

I'm sorry, but I really can't solve any problem related to the ffmpeg installation on Mac. A couple of months ago my friend tried to resolve it but didn't succeed even with some alternative methods. I suppose just executing brew install libav is not enough. Or may be it's required to specify the path to the include files in the -ldflags option of the go build command.

[daniel-orlov]

I fixed that one - Link to SO

However the problem is that one cannot run brew install libav anymore - it's unmaintained and therefore disabled

[zergon321]

@daniel-orlov is that the correct instruction now? (You could do your own PR with this fix if you'd like to).

[kibab]

Hi, the above PR alone is not sufficient, it allows the project to compile but not link.
You have to specify LDFLAGS as well to make linking pass:

CGO_LDFLAGS="-L/opt/homebrew/Cellar/ffmpeg/5.1.2/lib"

[kibab]

that being said, with these CPPFLAGS and LDFLAGS the project compiled on Mac (OS X Monterey on M1 Mac) and works like a charm :-)

[kibab]

Actually, even easier would be to use a CGO pkg-config directive:
// #cgo pkg-config: libavutil libavformat libavformat libswscale

Sending a PR soon.

[zergon321]

@dht-hedaihua please check if v0.1.6 resolves your issue.