base on libavif - Library for encoding and decoding .avif files # libavif This library aims to be a friendly, portable C implementation of the AV1 Image File Format, as described here: <https://aomediacodec.github.io/av1-avif/> It can encode and decode all AV1 supported YUV formats and bit depths (with alpha). It is recommended that you check out/use [tagged releases](https://github.com/AOMediaCodec/libavif/releases) instead of just using the main branch. We will regularly create new versions as bug fixes and features are added. ## Usage Please see the examples in the "examples" directory. If you're already building `libavif`, enable the CMake option `AVIF_BUILD_EXAMPLES` in order to build and run the examples too. ## Installation `libavif` is a package in most major OSs. ### Windows ```sh vcpkg install libavif ``` You can also download the official windows binaries on the [release](https://github.com/AOMediaCodec/libavif/releases) page. ### macOS Homebrew: ```sh brew install libavif ``` MacPorts: ```sh sudo port install libavif ``` ### Linux Debian-based distributions: ```sh sudo apt install libavif-dev ``` Red Hat-based distributions: ```sh sudo yum -y install libavif ``` ### MinGW For the "default" MSYS2 UCRT64 environment: ```sh pacman -S mingw-w64-ucrt-x86_64-libavif ``` ## Build Notes Building libavif requires [CMake](https://cmake.org/). No AV1 codecs are enabled by default. Enable them by setting any of the following CMake options to `LOCAL` or `SYSTEM` whether you want to use a locally built or a system installed version (e.g. `-DAVIF_CODEC_AOM=LOCAL`): * `AVIF_CODEC_AOM` for [libaom](https://aomedia.googlesource.com/aom/) (encoder and decoder) * `AVIF_CODEC_DAV1D` for [dav1d](https://code.videolan.org/videolan/dav1d) (decoder) * `AVIF_CODEC_LIBGAV1` for [libgav1](https://chromium.googlesource.com/codecs/libgav1/) (decoder) * `AVIF_CODEC_RAV1E` for [rav1e](https://github.com/xiph/rav1e) (encoder) * `AVIF_CODEC_SVT` for [SVT-AV1](https://gitlab.com/AOMediaCodec/SVT-AV1) (encoder) When set to `SYSTEM`, these libraries (in their C API form) must be externally available (discoverable via CMake's `FIND_LIBRARY`) to use them, or if libavif is a child CMake project, the appropriate CMake target must already exist by the time libavif's CMake scripts are executed. ### Static Builds When set to `LOCAL`, these libraries and the other dependencies will be pulled locally by CMake to known-good versions. To override a local dependency version or to use a custom build of a dependency, first run the associated script in the `ext/` subdirectory. ### Tests A few tests written in C can be built by enabling the `AVIF_BUILD_TESTS` CMake option. The remaining tests can be built by enabling `AVIF_BUILD_TESTS` and setting `AVIF_GTEST` to `SYSTEM` or `LOCAL`. ### Command Lines The following instructions can be used to build the libavif library and the `avifenc` and `avifdec` tools. #### Build using installed dependencies To link against the already installed `aom`, `libjpeg` and `libpng` dependency libraries (recommended): ```sh git clone -b v1.1.1 https://github.com/AOMediaCodec/libavif.git cmake -S libavif -B libavif/build -DAVIF_CODEC_AOM=SYSTEM -DAVIF_BUILD_APPS=ON cmake --build libavif/build --parallel ``` #### Build everything from scratch For development and debugging purposes, or to generate fully static binaries: ```sh git clone -b v1.1.1 https://github.com/AOMediaCodec/libavif.git cmake -S libavif -B libavif/build -DBUILD_SHARED_LIBS=OFF -DAVIF_CODEC_AOM=LOCAL -DAVIF_LIBYUV=LOCAL -DAVIF_LIBSHARPYUV=LOCAL -DAVIF_JPEG=LOCAL -DAVIF_ZLIBPNG=LOCAL -DAVIF_BUILD_APPS=ON -DCMAKE_C_FLAGS_RELEASE="-static" -DCMAKE_EXE_LINKER_FLAGS="-static" cmake --build libavif/build --parallel ``` ## Prebuilt Binaries (Windows) Statically-linked `avifenc.exe` and `avifdec.exe` can be downloaded from the [Releases](https://github.com/AOMediaCodec/libavif/releases) page. ## Development Notes Please check the [wiki](https://github.com/AOMediaCodec/libavif/wiki) for extra resources on libavif, such as the Release Checklist. The libavif library is written in C99. Most of the tests are written in C++14. ### Formatting Use [clang-format](https://clang.llvm.org/docs/ClangFormat.html) to format the sources from the top-level folder (`clang-format-16` preferred): ```sh clang-format -style=file -i \ apps/*.c apps/*/*.c apps/*/*.cc apps/*/*.h examples/*.c \ include/avif/*.h src/*.c src/*.cc \ tests/*.c tests/*/*.cc tests/*/*.h ``` Use [cmake-format](https://github.com/cheshirekow/cmake_format) to format the CMakeLists.txt files from the top-level folder: ```sh cmake-format -i \ CMakeLists.txt \ tests/CMakeLists.txt \ cmake/Modules/*.cmake \ contrib/CMakeLists.txt \ contrib/gdk-pixbuf/CMakeLists.txt \ android_jni/avifandroidjni/src/main/jni/CMakeLists.txt ``` --- ## License Released under the BSD License. ```markdown Copyright 2019 Joe Drago. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ``` ", Assign "at most 3 tags" to the expected json: {"id":"8764","tags":[]} "only from the tags list I provide: [{"id":77,"name":"3d"},{"id":89,"name":"agent"},{"id":17,"name":"ai"},{"id":54,"name":"algorithm"},{"id":24,"name":"api"},{"id":44,"name":"authentication"},{"id":3,"name":"aws"},{"id":27,"name":"backend"},{"id":60,"name":"benchmark"},{"id":72,"name":"best-practices"},{"id":39,"name":"bitcoin"},{"id":37,"name":"blockchain"},{"id":1,"name":"blog"},{"id":45,"name":"bundler"},{"id":58,"name":"cache"},{"id":21,"name":"chat"},{"id":49,"name":"cicd"},{"id":4,"name":"cli"},{"id":64,"name":"cloud-native"},{"id":48,"name":"cms"},{"id":61,"name":"compiler"},{"id":68,"name":"containerization"},{"id":92,"name":"crm"},{"id":34,"name":"data"},{"id":47,"name":"database"},{"id":8,"name":"declarative-gui "},{"id":9,"name":"deploy-tool"},{"id":53,"name":"desktop-app"},{"id":6,"name":"dev-exp-lib"},{"id":59,"name":"dev-tool"},{"id":13,"name":"ecommerce"},{"id":26,"name":"editor"},{"id":66,"name":"emulator"},{"id":62,"name":"filesystem"},{"id":80,"name":"finance"},{"id":15,"name":"firmware"},{"id":73,"name":"for-fun"},{"id":2,"name":"framework"},{"id":11,"name":"frontend"},{"id":22,"name":"game"},{"id":81,"name":"game-engine "},{"id":23,"name":"graphql"},{"id":84,"name":"gui"},{"id":91,"name":"http"},{"id":5,"name":"http-client"},{"id":51,"name":"iac"},{"id":30,"name":"ide"},{"id":78,"name":"iot"},{"id":40,"name":"json"},{"id":83,"name":"julian"},{"id":38,"name":"k8s"},{"id":31,"name":"language"},{"id":10,"name":"learning-resource"},{"id":33,"name":"lib"},{"id":41,"name":"linter"},{"id":28,"name":"lms"},{"id":16,"name":"logging"},{"id":76,"name":"low-code"},{"id":90,"name":"message-queue"},{"id":42,"name":"mobile-app"},{"id":18,"name":"monitoring"},{"id":36,"name":"networking"},{"id":7,"name":"node-version"},{"id":55,"name":"nosql"},{"id":57,"name":"observability"},{"id":46,"name":"orm"},{"id":52,"name":"os"},{"id":14,"name":"parser"},{"id":74,"name":"react"},{"id":82,"name":"real-time"},{"id":56,"name":"robot"},{"id":65,"name":"runtime"},{"id":32,"name":"sdk"},{"id":71,"name":"search"},{"id":63,"name":"secrets"},{"id":25,"name":"security"},{"id":85,"name":"server"},{"id":86,"name":"serverless"},{"id":70,"name":"storage"},{"id":75,"name":"system-design"},{"id":79,"name":"terminal"},{"id":29,"name":"testing"},{"id":12,"name":"ui"},{"id":50,"name":"ux"},{"id":88,"name":"video"},{"id":20,"name":"web-app"},{"id":35,"name":"web-server"},{"id":43,"name":"webassembly"},{"id":69,"name":"workflow"},{"id":87,"name":"yaml"}]" returns me the "expected json"