Build from source on mac with all features.

[melMass]

Hello,

Here is how I built gifski from source:

# clone the repo
git clone https://github.com/ImageOptim/gifski

On mac gcc is a symlink to Clang, but the old apple version doesn't have built-in support for OpenMP see here so:

brew install gcc
export CC="/usr/local/bin/gcc-7"
cargo update
cargo build --release --features=openmp

But is fails when adding ffmpeg support:

cargo build --release --features=video,openmp --verbose

The output (shortened to essential):

It rightly links against brew libs (ffmpeg installed from HEAD):

rustc --crate-name ffmpeg --crate-type lib-L native=/usr/local/Cellar/ffmpeg/HEAD-7414d0b/lib

The errors:

pixel.rs : 696 Pixel::VDA_VLD => AV_PIX_FMT_VDA_VLD,
| ^^^^^^^^^^^^^^^^^^ did you mean AV_PIX_FMT_VAAPI_VLD?
740 Pixel::VDA => AV_PIX_FMT_VDA,
| ^^^^^^^^^^^^^^ did you mean AV_PIX_FMT_CUDA?
803 Pixel::XVMC => AV_PIX_FMT_XVMC,
| ^^^^^^^^^^^ variant not found in util::format::pixel::Pixel

[kornelski]

Yeah, the ffmpeg crate is a broken mess:

meh/rust-ffmpeg#97
meh/rust-ffmpeg#90

I plan to migrate video support to gstreamer (it has excellent Rust support), but haven't had time to do it yet.

If you feel adventurous, maybe you could add gstreamer?

[melMass]

Oh I see... I guess meh abandoned the project. I've never tried binding other language to rust.
The gstreamer one does seem to be well maintained.
Too much of a newbie in Rust to be able to PR anything to this project.

I've made a simple binary wrapper in PyQt, I'll upload the repo this week if anyone is interested.

[kornelski]

I've switched to less-broken ffmpeg crate. It should work now.