Couldn't find ffmpeg or avconv - defaulting to ffmpeg, but may not work

[Tom722]

/usr/app/venv/lib/python3.11/site-packages/pydub/utils.py:170: RuntimeWarning: Couldn't find ffmpeg or avconv - defaulting to ffmpeg, but may not work warn("Couldn't find ffmpeg or avconv - defaulting to ffmpeg, but may not work", RuntimeWarning)

[Tom722]

按照dockerfile构造的镜像，运行起来后报这个错误，但是我看dockerfile第一阶段已经安装了ffmpeg了，为啥里面还是提示找不到ffmpeg?

[maber1993]

作者的Dockerfile使用了多阶段构建，每个阶段都是独立的，第一阶段安装了ffmpeg，第二阶段并未安装，所以需要再次安装

FROM python:3.11 as builder

WORKDIR /usr/app
ENV PATH="/usr/app/venv/bin:$PATH"

RUN sed -i 's/deb.debian.org/mirrors.aliyun.com/g' /etc/apt/sources.list &&\
    sed -i 's/http:/https:/g' /etc/apt/sources.list&&\
    apt-get update && apt-get install -y --no-install-recommends ffmpeg &&\
    rm -rf /var/lib/apt/lists/*
RUN mkdir -p /usr/app
RUN python -m venv ./venv

COPY requirements.txt .

RUN pip config set global.index-url https://mirrors.aliyun.com/pypi/simple/
RUN pip config set global.trusted-host mirrors.aliyun.com
RUN pip install -r requirements.txt

FROM python:3.11

WORKDIR /usr/app
ENV PATH="/usr/app/venv/bin:$PATH"
RUN sed -i 's/deb.debian.org/mirrors.aliyun.com/g' /etc/apt/sources.list &&\
    sed -i 's/http:/https:/g' /etc/apt/sources.list&&\
    apt-get update && apt-get install -y --no-install-recommends \
    ffmpeg\
    inetutils-ping \
    telnet
COPY --from=builder /usr/app/venv ./venv
COPY . .

RUN cp ./gui/streamlit_app.py .

CMD ["streamlit", "run", "streamlit_app.py"]

EXPOSE 8501

[sparksustc]

Notes: head.zip downloaded manually

FROM python:3.11

RUN sed -i 's/deb.debian.org/mirrors.aliyun.com/g' /etc/apt/sources.list &&
sed -i 's/http:/https:/g' /etc/apt/sources.list&&
apt-get update
&& apt-get install -y --no-install-recommends ffmpeg
&& apt-get -y clean
&& rm -rf /var/lib/apt/lists/*

COPY requirements.txt /tmp COPY head.zip /tmp RUN pip config set global.index-url https://mirrors.aliyun.com/pypi/simple/ RUN pip config set global.trusted-host mirrors.aliyun.com

RUN pip install --upgrade pip
&& pip install -r /tmp/requirements.txt
&& rm /tmp/requirements.txt

COPY . /root/gpt4free

WORKDIR /root/gpt4free

CMD ["streamlit", "run", "./gui/streamlit_app.py"]

EXPOSE 8501