Thanks for imager! It's great!

BTW, I followed instructions in https://github.com/imager-io/imager/blob/master/docs/imager/install.md

It mentions imager v0.3.3, but it seems to be an auto release of v0.3.4.

Should the documentation be updated?

I came across your imager project on GitHub while looking at various image compression software. I was able to download and run it on Ubuntu, and it does a fantastic job on compression. Well done on developing this awesome utility!

I am now trying to compile it for a Raspberry Pi but am running into some errors.

I followed the steps in the 'install.md' file in the project:

• curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
• apt-get install -y build-essential llvm-dev libclang-dev clang openssl pkg-config libssl-dev xz-utils
• git clone https://github.com/imager-io/imager.git && cd imager
• cargo install --path imager --force

If I run the compile with the --verbose option I get the following output:

Running `rustc --crate-name webp_dev --edition=2018 /home/pi/.cargo/registry/src/github.com-1285ae84e5963aae/webp-dev-0.4.1/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 -Cembed-bitcode=no --cfg 'feature="default"' -C metadata=0d370911ed82618f -C extra-filename=-0d370911ed82618f --out-dir /tmp/cargo-installKBNy5i/release/deps -L dependency=/tmp/cargo-installKBNy5i/release/deps --extern image=/tmp/cargo-installKBNy5i/release/deps/libimage-a4bacbab917eac6b.rmeta --extern libc=/tmp/cargo-installKBNy5i/release/deps/liblibc-5103d3a8c700d90d.rmeta --cap-lints allow -L native=/tmp/cargo-installKBNy5i/release/build/webp-dev-cd4262d980e28f83/out/webmproject-libwebp-8bac456/src -L native=/tmp/cargo-installKBNy5i/release/build/webp-dev-cd4262d980e28f83/out/webmproject-libwebp-8bac456/src/demux -L native=/tmp/cargo-installKBNy5i/release/build/webp-dev-cd4262d980e28f83/out -l static=webp -l static=webpdemux -l static=cbits`
error: could not find native static library `webp`, perhaps an -L flag is missing?

error: aborting due to previous error

error: could not compile `webp-dev`.

Caused by:
  process didn't exit successfully: `rustc --crate-name webp_dev --edition=2018 /home/pi/.cargo/registry/src/github.com-1285ae84e5963aae/webp-dev-0.4.1/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 -Cembed-bitcode=no --cfg 'feature="default"' -C metadata=0d370911ed82618f -C extra-filename=-0d370911ed82618f --out-dir /tmp/cargo-installKBNy5i/release/deps -L dependency=/tmp/cargo-installKBNy5i/release/deps --extern image=/tmp/cargo-installKBNy5i/release/deps/libimage-a4bacbab917eac6b.rmeta --extern libc=/tmp/cargo-installKBNy5i/release/deps/liblibc-5103d3a8c700d90d.rmeta --cap-lints allow -L native=/tmp/cargo-installKBNy5i/release/build/webp-dev-cd4262d980e28f83/out/webmproject-libwebp-8bac456/src -L native=/tmp/cargo-installKBNy5i/release/build/webp-dev-cd4262d980e28f83/out/webmproject-libwebp-8bac456/src/demux -L native=/tmp/cargo-installKBNy5i/release/build/webp-dev-cd4262d980e28f83/out -l static=webp -l static=webpdemux -l static=cbits` (exit code: 1)

Some system information

pi@raspberrypi:~ $ lsb_release -a
No LSB modules are available.
Distributor ID: Raspbian
Description:    Raspbian GNU/Linux 10 (buster)
Release:        10
Codename:       buster

pi@raspberrypi:~ $ uname -a
Linux raspberrypi 4.19.93-v7+ #1290 SMP Fri Jan 10 16:39:50 GMT 2020 armv7l GNU/Linux

Any advice on how to fix this?

• Updated the download links to the 0.3.4 command. Temporally resolve #7.
• Replaced the http command to wget. I don’t know what it is, and since I don’t know if it is preinstalled on mac, I haven’t modified that one.
• Simplified the tar extract command, so it extracts any downloaded imager builds, regardless of the downloaded version.

Hi! First of all, I would like to really thank you for writing such a software, I've found it incredibly useful for image resizing, obtaining perceptible resolution losses only at 3x zoom at 1/8th of the original size!

That made me curious about what kind of compression algorithm the software uses, how generic it is (I have seen that you are trying to apply it to videos too, can't wait!), and what are your current thoughts on the development of the software.

Thanks again.

Sometimes I get the following error message when batch compressing jpg files:

thread 'main' panicked at 'assertion failed: picture.uv_stride as u32 == width / 2', ~/.cargo/registry/src/github.com-1ecc6299db9ec823/imager-0.3.2/src/data.rs:276:9

Sometimes I get the following error message when batch compressing files:

thread 'main' panicked at 'open input file path: ()', ~/.cargo/registry/src/github.com-1ecc6299db9ec823/imager-0.3.2/src/main.rs:150:73

I assume it's due to a wrong file type or something.

Hey man,

Awesome tool. Tried it out locally and noticed some vulnerabilities and unpinned libraries. For security purposes, I pinned some of them and updated the docker image.

If you plan to keep that thing up to date (which would be awesome) I would recommend to add dependabot or something like it.

There are a f**** ton of lines updated due to cargo fmt. The main changes are the Cargo.toml files, the Dockerfile and the two imports of image::FileType moved to image::imageops::FileType and image::ConvertBuffer moved to image::buffer::ConvertBuffer

Do you plan to publish the docker image yourself?

I came across your imager project on GitHub while looking at various image compression software. I was able to download and run it on Ubuntu, and it does a fantastic job on compression. Well done on developing this awesome utility!

I am now trying to compile it for a Raspberry Pi but am running into some errors.

I followed the steps in the 'install.md' file in the project:

• curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
• apt-get install -y build-essential llvm-dev libclang-dev clang openssl pkg-config libssl-dev xz-utils
• git clone https://github.com/imager-io/imager.git && cd imager
• cargo install --path imager --force

If I run the compile with the --verbose option I get the following output:

Running `rustc --crate-name webp_dev --edition=2018 /home/pi/.cargo/registry/src/github.com-1285ae84e5963aae/webp-dev-0.4.1/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 -Cembed-bitcode=no --cfg 'feature="default"' -C metadata=0d370911ed82618f -C extra-filename=-0d370911ed82618f --out-dir /tmp/cargo-installKBNy5i/release/deps -L dependency=/tmp/cargo-installKBNy5i/release/deps --extern image=/tmp/cargo-installKBNy5i/release/deps/libimage-a4bacbab917eac6b.rmeta --extern libc=/tmp/cargo-installKBNy5i/release/deps/liblibc-5103d3a8c700d90d.rmeta --cap-lints allow -L native=/tmp/cargo-installKBNy5i/release/build/webp-dev-cd4262d980e28f83/out/webmproject-libwebp-8bac456/src -L native=/tmp/cargo-installKBNy5i/release/build/webp-dev-cd4262d980e28f83/out/webmproject-libwebp-8bac456/src/demux -L native=/tmp/cargo-installKBNy5i/release/build/webp-dev-cd4262d980e28f83/out -l static=webp -l static=webpdemux -l static=cbits`
error: could not find native static library `webp`, perhaps an -L flag is missing?

error: aborting due to previous error

error: could not compile `webp-dev`.

Caused by:
  process didn't exit successfully: `rustc --crate-name webp_dev --edition=2018 /home/pi/.cargo/registry/src/github.com-1285ae84e5963aae/webp-dev-0.4.1/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 -Cembed-bitcode=no --cfg 'feature="default"' -C metadata=0d370911ed82618f -C extra-filename=-0d370911ed82618f --out-dir /tmp/cargo-installKBNy5i/release/deps -L dependency=/tmp/cargo-installKBNy5i/release/deps --extern image=/tmp/cargo-installKBNy5i/release/deps/libimage-a4bacbab917eac6b.rmeta --extern libc=/tmp/cargo-installKBNy5i/release/deps/liblibc-5103d3a8c700d90d.rmeta --cap-lints allow -L native=/tmp/cargo-installKBNy5i/release/build/webp-dev-cd4262d980e28f83/out/webmproject-libwebp-8bac456/src -L native=/tmp/cargo-installKBNy5i/release/build/webp-dev-cd4262d980e28f83/out/webmproject-libwebp-8bac456/src/demux -L native=/tmp/cargo-installKBNy5i/release/build/webp-dev-cd4262d980e28f83/out -l static=webp -l static=webpdemux -l static=cbits` (exit code: 1)

This error happens on the Raspberry Pi and Ubuntu (WSL)

Some system information for the PI

pi@raspberrypi:~ $ lsb_release -a
No LSB modules are available.
Distributor ID: Raspbian
Description:    Raspbian GNU/Linux 10 (buster)
Release:        10
Codename:       buster

pi@raspberrypi:~ $ uname -a
Linux raspberrypi 4.19.93-v7+ #1290 SMP Fri Jan 10 16:39:50 GMT 2020 armv7l GNU/Linux

Some system information for Ubuntu (WSL)

user@laptop:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 20.04.1 LTS
Release:        20.04
Codename:       focal

user@laptop:~$ uname -a
Linux laptop 4.19.104-microsoft-standard #1 SMP Wed Feb 19 06:37:35 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux

Any advice on how to fix this?