Error in github.com/3d0c/gmf downloading stage

[teploff]

Hi @denismakogon! Thank you so much for your help repository.

I'm trying to launch my web service with github.com/3d0c/gmf library in docker.

I've checked your recommendations to create image, and I'm catching the error in go packages download. The error is:

# github.com/3d0c/gmf
/usr/bin/ld: $WORK/b334/_x011.o: in function `gmf_get_timecode':
/go/pkg/mod/github.com/3d0c/gmf@v0.0.0-20220906170454-be727bc5b56c/frame_go112.go:36: undefined reference to `av_timecode_make_smpte_tc_string2'
/usr/bin/ld: /usr/lib/x86_64-linux-gnu/libpangoft2-1.0.so.0: undefined reference to `FcWeightToOpenTypeDouble'
/usr/bin/ld: /usr/lib/x86_64-linux-gnu/libpango-1.0.so.0: undefined reference to `fribidi_get_bracket'
/usr/bin/ld: /usr/lib/x86_64-linux-gnu/libpango-1.0.so.0: undefined reference to `fribidi_get_par_embedding_levels_ex'
/usr/bin/ld: /usr/lib/x86_64-linux-gnu/libpangoft2-1.0.so.0: undefined reference to `FcWeightFromOpenTypeDouble'
collect2: error: ld returned 1 exit status

Have you ever faced with its problem?

My full Dockerfile is:

FROM ghcr.io/denismakogon/ffmpeg-debian:5.0.1-golang-1 as build-stage

RUN go version
RUN pkg-config --libs libavformat

WORKDIR /app
COPY . .

RUN go build -o videophash /app/cmd/main.go


FROM ghcr.io/denismakogon/ffmpeg-debian:5.0.1-runtime

WORKDIR /app
COPY --from=builder /app/ ./

ENTRYPOINT ["./videophash", "--config=./configs/config.yaml"]

Also I'm trying to build it from sources in your images like:

RUN wget https://launchpad.net/ubuntu/+archive/primary/+sourcefiles/ffmpeg/7:5.1.1-1ubuntu1/ffmpeg_5.1.1.orig.tar.xz
RUN tar -C /usr/local -xvf ffmpeg_5.1.1.orig.tar.xz

RUN cd /usr/local/ffmpeg-5.1.1 && ./configure --disable-x86asm --prefix=/usr/local/ffmpeg --enable-shared && make && make install && cd -

But It didn't help.

I will be happy if you help me. Have a nice day!

[denismakogon]

Hey @teploff! Sorry for taking that long. I didn't have a chance to check what has happened recently, but would appreciate any help at this moment!

[seth-epps]

Very late, but commenting in case this might help someone else out later.

I'll preface this by noting I have very little background with pkg-config and cgo so this may be entirely incorrect

I was running into the same issue and it looks like it could be because the pkg-config paths are still pointing at the /opt/ffmpeg prefix, but everything is copied from/to /usr/local and missing the libraries from /opt/ffmpeg/lib.

❯ docker container run --rm -it ghcr.io/denismakogon/ffmpeg-debian:5.0.1-golang-1 /bin/bash
root@c988a3bb2c84:/go# pkg-config --libs libavutil
-L/opt/ffmpeg/lib -lavutil
root@c988a3bb2c84:/go# cat /usr/local/lib/pkgconfig/libavutil.pc
prefix=/opt/ffmpeg
exec_prefix=${prefix}
libdir=/opt/ffmpeg/lib
includedir=/opt/ffmpeg/include

Name: libavutil
Description: FFmpeg utility library
Version: 57.17.100
Requires:
Requires.private:
Conflicts:
Libs: -L${libdir}  -lavutil
Libs.private: -pthread -lva-drm -lva -lm -lva -latomic
Cflags: -I${includedir}

This is probably a less than ideal workaround, however, I've got it working by just rolling my own build. I wanted to get it running in a distroless container, but it was just too much of a hassle fighting with the missing dependencies. It takes most of the base build from ghcr.io/denismakogon/ffmpeg-debian:base and keeps the image relatively small, but unfortunately the ffmpeg libraries occupy a fair amount of space (238M /opt/ffmpeg/lib).

FROM docker.io/library/golang:1.19-bullseye as build
RUN apt-get update -y && apt-get install -y --no-install-recommends \
    libva-drm2 \
    libva2 && \
    apt-get autoremove -y && \
    apt-get clean && \
	rm -rf /var/lib/apt/lists/*

ENV LD_LIBRARY_PATH=/opt/ffmpeg/lib
ENV PKG_CONFIG_PATH=/opt/ffmpeg/lib/pkgconfig

COPY --from=ghcr.io/denismakogon/ffmpeg-debian:5.0.1-build /opt/ffmpeg /opt/ffmpeg

WORKDIR /build

COPY go.mod ./
COPY go.sum ./

RUN go mod download

COPY main.go ./

RUN go build -o /ffmpeg-tester


FROM debian:bullseye-slim as base
RUN apt-get -yqq update && \
     apt-get install -yq --no-install-recommends \
     ca-certificates \
     expat \
     libgomp1 \
     libva-drm2 \
     libva2 && \
     apt-get autoremove -y && \
     apt-get clean -y && \
	 rm -rf /var/lib/apt/lists/*

ENV LD_LIBRARY_PATH=/opt/ffmpeg/lib
ENV PKG_CONFIG_PATH=/opt/ffmpeg/lib/pkgconfig

COPY --from=build /opt/ffmpeg/lib /opt/ffmpeg/lib
COPY --from=build /ffmpeg-tester /ffmpeg-tester
COPY tests-sample.mp4 /samples/tests-sample.mp4

CMD ["/ffmpeg-tester", "-src", "/samples/tests-sample.mp4"]