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• Convert webm to mp4 on with spawn ffmpeg on firebase cloud function returning failed with code 1

  11 novembre 2022, par findev

  In a google cloud function, i'm trying to convert a donwloaded .webm file from cloud storage to .mp4 format with this code

  


  var mp4FilePath = path.join(os.tmpdir(), mediaId+'.mp4')
await spawn('ffmpeg', [
    '-i',
    downloadedFilePath,
    '-c copy',
    mp4FilePath,
]); 


  


  I keep receiving the following error

  


  Error: `ffmpeg -i /var/folders/h2/p35j0p3s4zq9ktyqhdx3qb9h0000gn/T/ghE1HQP1x9m2XLaxEx43_raw.webm -c copy /var/folders/h2/p35j0p3s4zq9ktyqhdx3qb9h0000gn/T/test.mp4` failed with code 1


  


  I'm able to create thumbnails so the source file is downloaded correctly.

  


• Docker fails to import FFMPEG or does not find it

  8 décembre 2022, par stxss

  So I'm trying to create a telegram bot using python and ffmpeg and I want to deploy it to a server through a docker image.

  


  I already looked through a lot of resources as I've been looking at the same 5 lines of code for the past three days and neither discords, stack overflow previous answers have helped me.

  


  This is my dockerfile where half of the program works (apart from the ffmpeg functionality).

  


  FROM python:3.9

RUN mkdir /app
WORKDIR /app

COPY requirements.txt ./
RUN pip3 install --no-cache-dir --user -r requirements.txt

COPY . .

ENTRYPOINT ["/usr/bin/python3", "./app.py" ]


  


  With this code I get the following error when trying to use a function that invokes ffmpeg functionality.

  


  Traceback (most recent call last):
File "/root/.local/lib/python3.9/site-packages/pyrogram/dispatcher.py", line 240, in handler_worker
await handler.callback(self.client, *args)
File "/app/./app.py", line 274, in choice_from_inline
await helpers.trim_file(trim_length, "audio", chat_id_for_join.strip())
File "/app/helpers.py", line 53, in trim_file
output = ffmpeg.output(
File "/root/.local/lib/python3.9/site-packages/ffmpeg/_run.py", line 313, in run
process = run_async(
File "/root/.local/lib/python3.9/site-packages/ffmpeg/_run.py", line 284, in run_async
return subprocess.Popen(
File "/usr/lib/python3.9/subprocess.py", line 951, in __init__
self._execute_child(args, executable, preexec_fn, close_fds,
File "/usr/lib/python3.9/subprocess.py", line 1823, in _execute_child
raise child_exception_type(errno_num, err_msg, err_filename)
FileNotFoundError: [Errno 2] No such file or directory: 'ffmpeg'


  


  Another issue is that when changing the ENTRYPOINT (or using CMD) to ["python3", "./app.py" ] everything works well locally but as soon as I try to deploy, the deployment/docker container just doesn't work or crash because I get the error of ModuleNotFoundError: No module named 'ffmpeg'.

  


  I have already tried setting up different ENV PATH and ENV PYTHONPATH, does absolutely nothing.
I have tried to use COPY --from=jrottenberg/ffmpeg /usr/local ./ and it also doesn't work.
I have tried to explicitly use RUN apt-get install -y ffmpeg and similar commands, pip, pip3, etc.. it just doesn't work.

  


  I tried to use the copy command to access the /root/.local/lib/python3.9/site-packages/ffmpeg/_run.py but I either get a permission denied or a file does not exist error.

  


  I am also using the ffmpeg-python wrapper and am using a windows machine if that's of any importance.

  


  At this point I'm contemplating of finding another way of implementing the functionality I want without using ffmpeg.

  


  I think I added everything I had, if needed more I can provide.

  


• ffmpeg cannot find stream but stream does exist

  10 avril 2023, par rayen saidani

  ima using ffmpeg to add text to the video the problem is this command works some times and some times it just dont feel like working

  


  this the error that iam getting
Cannot find a matching stream for unlabeled input pad 0 on filter Parsed_subtitles_0

  


  this the command iam trying to run to add text to the video the srt file is always there when i run the commmand i tryed to run :
ffmpeg -i  ./vid/${id}.3.mp4   -lavfi "subtitles=${id}.srt:force_style='Alignment=0,OutlineColor=&H100000000,BorderStyle=3,Outline=1,Shadow=0,Fontsize=18,MarginL=100,Marginv=100'"  -c:1 copy ./ready/${id}.4.mp4

  


  this the function :

  


  const addtext=async(id)=>{
  
  return new Promise(async(resolve,reject)=>{
    const command1 =await `ffmpeg -i  ./vid/${id}.3.mp4   -lavfi "subtitles=${id}.srt:force_style='Alignment=0,OutlineColor=&H100000000,BorderStyle=3,Outline=1,Shadow=0,Fontsize=18,MarginL=100,Marginv=100'"  -c:1 copy ./ready/${id}.4.mp4 `;
    await exec(command1, (error, stdout, stderr) => {
    if (error) {
        reject(`stderr: ${error.message}`)
    }
    resolve(id)
  })
 })  
}


  


  this the error that iam getting
Cannot find a matching stream for unlabeled input pad 0 on filter Parsed_subtitles_0

  


  this the command iam trying to run to add text to the video the srt file is always there when i run the commmand i tryed to run :
ffmpeg -i  ./vid/${id}.3.mp4   -lavfi "subtitles=${id}.srt:force_style='Alignment=0,OutlineColor=&H100000000,BorderStyle=3,Outline=1,Shadow=0,Fontsize=18,MarginL=100,Marginv=100'"  -c:1 copy ./ready/${id}.4.mp4