feat: enable --enable-libzimg (#574)

* feat: enable --enable-libzimg

* 📄 doc: comment the Dockerfile

* ⚙️ conf: modify CI to add zimg-dev

* ⚙️ conf: try to install and build from git zimg

* ⚙️ fix: git recursive

* ⚙️ conf: add zimg version display

* ⚙️ conf: change cache name to check if cache was responsible for build failure

* ⚙️ conf: change dockerfile to build zimg

* ➕ add: missing build script file zimg.sh

.github/workflows/CI.yml

@@ -13,13 +13,15 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout Source Code
-      uses: actions/checkout@v3
+      uses: actions/checkout@v2
+    - name: Update pkg-config database
+      run: sudo ldconfig
     - name: Setup Docker Buildx
       id: buildx
       uses: docker/setup-buildx-action@v2
     - name: Cache build
       id: cache-build
-      uses: actions/cache@v3
+      uses: actions/cache@v2
       with:
         path: build-cache-st
         key: build-cache-st-v1-${{ hashFiles('Dockerfile', 'Makefile', 'build/*') }}
@@ -28,7 +30,7 @@ jobs:
     - name: Build ffmpeg-core
       run: make prd EXTRA_ARGS="--cache-from=type=local,src=build-cache-st --cache-to=type=local,dest=build-cache-st,mode=max"
     - name: Upload core
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v2
       with:
         name: ffmpeg-core
         path: packages/core/dist/*
@@ -36,23 +38,22 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout Source Code
-      uses: actions/checkout@v3
+      uses: actions/checkout@v2
     - name: Setup Docker Buildx
       id: buildx
       uses: docker/setup-buildx-action@v2
     - name: Cache build
       id: cache-build
-      uses: actions/cache@v3
+      uses: actions/cache@v2
       with:
         path: build-cache-mt
-          
         key: build-cache-mt-v1-${{ hashFiles('Dockerfile', 'Makefile', 'build/*') }}
         restore-keys: |
           build-cache-v1-
     - name: Build ffmpet-core-mt
       run: make prd-mt EXTRA_ARGS="--cache-from=type=local,src=build-cache-mt --cache-to=type=local,dest=build-cache-mt,mode=max"
     - name: Upload core-mt
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v2
       with:
         name: ffmpeg-core-mt
         path: packages/core-mt/dist/*
@@ -63,31 +64,30 @@ jobs:
       - build-core-mt
     steps:
     - name: Checkout Source Code
-      uses: actions/checkout@v3
+      uses: actions/checkout@v2
     - name: Download ffmpeg-core
-      uses: actions/download-artifact@v3
+      uses: actions/download-artifact@v2
       with:
         name: ffmpeg-core
         path: packages/core/dist
     - name: Download ffmpeg-core-mt
-      uses: actions/download-artifact@v3
+      uses: actions/download-artifact@v2
       with:
         name: ffmpeg-core-mt
         path: packages/core-mt/dist
     - name: Use Node.js 18
-      uses: actions/setup-node@v3
+      uses: actions/setup-node@v2
       with:
         node-version: 18.x
     - name: Cache dependencies
       id: cache-dependencies
-      uses: actions/cache@v3
+      uses: actions/cache@v2
       with:
         path: node_modules
-          
         key: node-modules-${{ hashFiles('package-lock.json') }}
         restore-keys: |
           node-modules-
     - name: Install dependencies
       run: npm install
     - name: Run tests
-      run: npm test
+      run: npm test

Dockerfile

@@ -20,6 +20,14 @@ ENV FFMPEG_MT=$FFMPEG_MT
 RUN apt-get update && \
       apt-get install -y pkg-config autoconf automake libtool ragel
 
+# Build zimg
+FROM emsdk-base AS zimg-builder
+ENV ZIMG_BRANCH=release-3.0.5
+RUN apt-get update && apt-get install -y git
+RUN git clone --recursive -b $ZIMG_BRANCH https://github.com/sekrit-twc/zimg.git /src
+COPY build/zimg.sh /src/build.sh
+RUN bash -x /src/build.sh
+
 # Build x264
 FROM emsdk-base AS x264-builder
 ENV X264_BRANCH=4-cores
@@ -137,8 +145,9 @@ COPY --from=theora-builder $INSTALL_DIR $INSTALL_DIR
 COPY --from=vorbis-builder $INSTALL_DIR $INSTALL_DIR
 COPY --from=libwebp-builder $INSTALL_DIR $INSTALL_DIR
 COPY --from=libass-builder $INSTALL_DIR $INSTALL_DIR
+COPY --from=zimg-builder $INSTALL_DIR $INSTALL_DIR
 
-# Build ffmpeg
+# Build ffmpeg with --enable-libzimg
 FROM ffmpeg-base AS ffmpeg-builder
 COPY build/ffmpeg.sh /src/build.sh
 RUN bash -x /src/build.sh \
@@ -154,7 +163,8 @@ RUN bash -x /src/build.sh \
       --enable-libwebp \
       --enable-libfreetype \
       --enable-libfribidi \
-      --enable-libass
+      --enable-libass \
+      --enable-libzimg 
 
 # Build ffmpeg.wasm
 FROM ffmpeg-builder AS ffmpeg-wasm-builder
@@ -178,7 +188,8 @@ ENV FFMPEG_LIBS \
       -lfreetype \
       -lfribidi \
       -lharfbuzz \
-      -lass
+      -lass \
+      -lzimg
 RUN mkdir -p /src/dist/umd && bash -x /src/build.sh \
       ${FFMPEG_LIBS} \
       -o dist/umd/ffmpeg-core.js

build/zimg.sh

@@ -0,0 +1,17 @@
+#!/bin/bash
+
+set -euo pipefail
+
+CONF_FLAGS=(
+  --prefix=$INSTALL_DIR            # lib installation directory
+  --host=x86_64-linux-gnu          # use i686 linux host
+  --disable-shared                 # build static library
+  --enable-static                  # enable static library
+  --disable-dependency-tracking    # speed up one-time build
+  --disable-simd                   # disable simd optimization
+)
+
+emconfigure ./autogen.sh
+
+emconfigure ./configure "${CONF_FLAGS[@]}"
+emmake make install -j