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• How to build ffmpeg.js via provided Unix code in Cygwin ?

  30 juin 2020, par rusty grad

  I am trying to build ffmpeg.js and add it to my program in windows. Docker does not work on my version of windows. The creator provided how to build it in Unix on his github page as follows :

  


  sudo apt-get update
sudo apt-get install -y git python build-essential automake libtool pkg-config
cd ~
git clone https://github.com/emscripten-core/emsdk.git && cd emsdk
./emsdk install latest
./emsdk activate latest
source emsdk_env.sh
cd ~
git clone https://github.com/Kagami/ffmpeg.js.git --recurse-submodules && cd ffmpeg.js
make


  


  How do I execute this command in Cygwin, or is there an easier way to incorporate FFMPEG or a competitor into a simple javascript client side operation ? I just need to run audio concatenation, which i confirmed works in cmd with FFMPEG :

  


  ffmpeg -i "concat:input1.mp3|input2.mp3|input3.mp3" -acodec copy output.mp3


  


• ffmpeg source code modification [closed]

  27 novembre 2011, par adismsc

  Anybody is able to help me modify source code of an ffmpeg in a way that during encoding to an mpeg-ts container SDT tables were not added ? Or if is it possible : how to disable SDT tables in encoding process ?

• When I run code in Docker I get a Django error [Errno 2]. When running locally everything works. Why ?

  8 février 2021, par Bartłomiej Kokoszka

  I don't know what's going on. A script run by Django works fine, but not through Docker and Django. An error is returned :

  


  Pic Errno 2 No such file or directory

  


  Below is the code of the function with the error and the code of the Dockerfile.

  


  '''

  


  def mediainfo(filepath):
    


  


  Original code :

  


  


      prober = get_prober_name()
    command_args = [
        "-v", "quiet",
        "-show_format",
        "-show_streams",
        filepath
    ]

    command = [prober, '-of', 'old'] + command_args


  


  


  Modified code :

  


  


      command = f"ffprobe -v error -show_format -show_streams -select_streams v:0 {filepath}"


  


  


  The rest of the functions :

  


      res = Popen(command, stdout=PIPE)&#xA;    output = res.communicate()[0].decode("utf-8")&#xA;&#xA;    if res.returncode != 0:&#xA;        output = Popen(command, stdout=PIPE).communicate()[0].decode("utf-8")&#xA;&#xA;    rgx = re.compile(r"(?:(?P.*?):)?(?P<key>.*?)\=(?P<value>.*?)$")&#xA;    info = {}&#xA;&#xA;    if sys.platform == &#x27;win32&#x27;:&#xA;        output = output.replace("\r", "")&#xA;&#xA;    for line in output.split("\n"):&#xA;        # print(line)&#xA;        mobj = rgx.match(line)&#xA;&#xA;        if mobj:&#xA;            # print(mobj.groups())&#xA;            inner_dict, key, value = mobj.groups()&#xA;&#xA;            if inner_dict:&#xA;                try:&#xA;                    info[inner_dict]&#xA;                except KeyError:&#xA;                    info[inner_dict] = {}&#xA;                info[inner_dict][key] = value&#xA;            else:&#xA;                info[key] = value&#xA;&#xA;    return info&#xA;</value></key>

  


  '''

  


  Code of the Dockerfile

  


  '''

  


  FROM python:3.7 as base

EXPOSE 80

WORKDIR /app
COPY . /app


ENV PYTHONDONTWRITEBYTECODE=1

ENV PYTHONUNBUFFERED=1

RUN pip install --upgrade pip
RUN echo 'deb http://deb.debian.org/debian buster-backports main contrib non-free' >> /etc/apt/sources.list
RUN apt-get update

RUN apt-get -y install ffmpeg
RUN apt-get update

COPY requirements.txt .
RUN python -m pip install -r requirements.txt

FROM base as prod

ENTRYPOINT ["python","manage.py","runserver","0.0.0.0:80"]


  


  '''