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• grabbing hevc h265 stream using ffmpeg

  26 août 2021, par hendyman

  I have a problem when I try to grab h265 encoded video from ip camera using rtsp protocol.
I want to save stream from camera and i use https://github.com/sahilchaddha/node-rtsp-recorder/ to do this. Almost all works perfectly but output video has green bars and I don't know why.

  


  These are my parameters

  


  ChildProcess {
  _events: [Object: null prototype] {},
  _eventsCount: 0,
  _maxListeners: undefined,
  _closesNeeded: 1,
  _closesGot: 0,
  connected: false,
  signalCode: null,
  exitCode: null,
  killed: false,
  spawnfile: 'ffmpeg',
  _handle: Process {
    onexit: [Function],
    pid: 96408,
    [Symbol(owner_symbol)]: [Circular]
  },
  spawnargs: [
    'ffmpeg',
    '-i',
    'rtsp://[...]',
    '-vcodec',
    'copy',
    'videos/cam1/Aug-26th-21/video/2021-8-26-5-51-13.mp4'
  ],
  pid: 96408,
  stdin: null,
  stdout: null,
  stderr: null,
  stdio: [ null, null, null ],
  [Symbol(kCapture)]: false
}


  


  and result
image

  


• My ffmpeg library is not being recognised as in inter or external command when trying to convert a video in python [duplicate]

  22 avril 2024, par Shaahid Patel

  What im trying to do in python is to convert a 4k mkv video to 1080p mp4 video using the ffmpeg library.

  


  import subprocess

def convert_4k_to_1080p(input_file, output_file):
    cmd = f'ffmpeg -i "{input_file}" -crf 18 -c:v libx264 -c:a aac -s 1920x1080 "{output_file}"'
    subprocess.run(cmd, shell=True)


input_file = "c:/Users/Shaahid/Videos/Movies/Series/Arcane.S01E02.2021.2160p.UHD.WEB.AI.AV1.Opus.MULTi5-dAV1nci.mkv"
output_file = "c:/Users/Shaahid/Videos/Movies/Series/Test.mp4"
convert_4k_to_1080p(input_file, output_file)


  


  however i have been recieving the following error :
'ffmpeg' is not recognized as an internal or external command,
operable program or batch file.

  


  I was expecting my video to be converted from 4k to 1080p however I still get errors. I have tried deleted and re installing the library through pip but unfortunately the error still occurs. Im not sure what to do and can anyone kindly assist me

  


• How to resolve Electron ffmpeg error opening input file ?

  26 août 2023, par 3V1LXD

  I have an Electron app with ffmpeg.exe inside the project's bin folder. When i try to use ffmpeg to make a new video I get an error reading the input file.

  


  FFmpeg error: [in#0 @ 000002667f2ab9c0] Error opening input: No such file or directory

Error opening input file C:/Users/xxxx/Videos/Powder/2023.08.19%2017.30.37_Apex_Legends/Powder_2023.08.19%2021.00.48.mp4


  


  const ffmpeg = spawn(ffmpegPath, [
  '-i', videoFile,
  '-filter_complex', filterComplex,
  '-map', '[out]',
  '-c:v', 'libx264',
  '-crf', '18',
  '-preset', 'veryfast',
  '-y',
  path.join(outputDir, outputName)
]);

ffmpeg.stdout.on('data', (data) => {
  console.log(`FFmpeg output: ${data}`);
});

ffmpeg.stderr.on('data', (data) => {
  console.error(`FFmpeg error: ${data}`);
});

ffmpeg.on('close', (code) => {
  console.log(`FFmpeg process exited with code ${code}`);
  event.reply('ffmpeg-export-done'); // Notify the renderer process
});


  


  How can i resolve this path issue ?