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| # ----------------------------------------------------------------------- | |
| # FFmpeg Windows Cross-Compilation Dockerfile (Minimal Build for WebCam) | |
| # ----------------------------------------------------------------------- | |
| FROM ubuntu:24.04 AS builder | |
| # build-essential: gcc, make等のビルドツール | |
| # mingw-w64: Windows向けクロスコンパイル環境 | |
| # nasm, yasm: FFmpegのビルドに必要 | |
| # git: FFmpegのソース取得に必要 | |
| # ca-certificates: git clone でのHTTPS通信に必要 | |
| RUN apt-get -yqq update && apt-get install -yq --no-install-recommends \ | |
| build-essential \ | |
| mingw-w64 \ | |
| mingw-w64-tools \ | |
| nasm \ | |
| yasm \ | |
| git \ | |
| ca-certificates \ | |
| && apt-get clean \ | |
| && rm -rf /var/lib/apt/lists/* | |
| WORKDIR /tmp/workdir | |
| RUN git clone --depth 1 https://git.ffmpeg.org/ffmpeg.git ffmpeg | |
| WORKDIR /tmp/workdir/ffmpeg | |
| RUN ./configure \ | |
| --arch=x86_64 \ | |
| --target-os=mingw32 \ | |
| --cross-prefix=x86_64-w64-mingw32- \ | |
| --pkg-config-flags="--static" \ | |
| --extra-ldflags="-static" \ | |
| --disable-all \ | |
| --disable-doc \ | |
| --disable-debug \ | |
| --disable-network \ | |
| --enable-ffmpeg \ | |
| --enable-avdevice \ | |
| --enable-avcodec \ | |
| --enable-avformat \ | |
| --enable-swscale \ | |
| --enable-avfilter \ | |
| --enable-w32threads \ | |
| --enable-indev=dshow \ | |
| --enable-decoder=rawvideo,mjpeg,h264 \ | |
| --enable-encoder=rawvideo \ | |
| --enable-parser=mjpeg,h264 \ | |
| --enable-demuxer=rawvideo,mjpeg,h264 \ | |
| --enable-muxer=rawvideo \ | |
| --enable-protocol=pipe,file \ | |
| --enable-filter=format,scale,rotate,transpose,hflip,vflip,crop,null | |
| RUN make -j$(nproc) | |
| FROM scratch | |
| COPY --from=builder /tmp/workdir/ffmpeg/ffmpeg.exe /ffmpeg.exe |
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