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• google speech to text errors out (grpc invalid deadline NaN)

  15 décembre 2019, par jamescharlesworth

  I have a ffmpeg script that cuts an audio file into a short 5 second clip, however after I cut the file, calling the google speech recognize command errors out.

  Creating a clip - full code link :

  const uri = 'http://traffic.libsyn.com/joeroganexp/p1400.mp3?dest-id=19997';
  
  const command = ffmpeg(got.stream(uri));
  
  command
  
    .seek(0)
  
    .duration(5)
  
    .audioBitrate(128)
  
    .format('mp3')
  
  ...

  which works fine and creates ./clip2.mp3.

  I then take that file and upload it to speech to text api and it times out (script here. When I put timeout and maxRetries argument I can get the actual error :

  Error: 2 UNKNOWN: Getting metadata from plugin failed with error: Deadline is too far in the future
  
      at Object.callErrorFromStatus (/Users/jamescharlesworth/Downloads/demo/node_modules/@grpc/grpc-js/build/src/call.js:30:26)
  
      at Http2CallStream.<anonymous> (/Users/jamescharlesworth/Downloads/demo/node_modules/@grpc/grpc-js/build/src/client.js:96:33)
  
      at Http2CallStream.emit (events.js:215:7)
  
      at /Users/jamescharlesworth/Downloads/demo/node_modules/@grpc/grpc-js/build/src/call-stream.js:98:22
  
      at processTicksAndRejections (internal/process/task_queues.js:75:11) {
  
    code: 2,
  
    details: 'Getting metadata from plugin failed with error: Deadline is too far in the future',
  
    metadata: Metadata { internalRepr: Map {}, options: {} },
  
    note: 'Exception occurred in retry method that was not classified as transient'
  
  }
  
  </anonymous>

  Stepping through the grpc code i see that the deadline is an invalid date.
  
  This seems to be causing the issue but i assume it may be from incorrect params passed into the speech client.recognize() method.

  A few other things to note :

  • The script works for some audio files, not all
  • I can upload the broken my clip mp3 clip2.mp3 to the demo app here and it works fine.
  • If I change the seek command of my ffmpeg script to start at 0.01 speech recognize command will work (however it breaks other audio clips as its not the correct starting point). I notice that when i do this the png of the mp3 gets stripped out and is a much smaller file size

• Problem to capture a video in 4K with FFmpeg

  16 mars 2020, par Ale7

  I am a new user of FFmpeg. I am trying to capture a ten minutes video in mp4 format, on 4 4K’s slot and 4 FHD’s slot with cards video Pro Capture by Magewell.
  My machine has the following characteristics :

  • OS : Windows Server 2012
  • RAM : 64 GB
  • CPU : 2 processors Intel Xeon E5-2640 v3 @ 2.60 GHz

  The FFmpeg script, for slot 4K (I change resolution for FHD), used is the following :

  ffmpeg -rtbufsize 2048M -re -y -thread_queue_size 20384 -pix_fmt yuv420p -f dshow -video_size 3840x2160 -r 50 -i video="Video (05-0 Pro Capture HDMI 4K+)"  -codec:v libx264  -preset ultrafast -threads 8 -pix_fmt yuv420p -tune fastdecode -bufsize 2048M output.mp4

  This command is the best solution found at the moment, but the CPU goes up to 100% and the buffer fills up quickly and starts to drop the frames.
  So, my question : Is there a way to improve it or is a limit, principally, of the my machine ?
  If it is a machine limit, you would indicate me the minium requirments to do that.

  Thanks in advance to everyone.

• problem with moviepy.video.io.ffmpeg_tools.ffmpeg_movie_from_frames

  7 mars 2023, par fjal

  when i try using this code it gives me this error

  


  from moviepy.video.io.ffmpeg_tools import ffmpeg_movie_from_frames as a
a('file.mp4','New folder',24)


  


  Traceback (most recent call last) :
File "C :\Users\lenovo\Desktop\fr.py", line 2, in 
a('file.mp4','New folder',24)
File "C :\Users\lenovo\AppData\Local\Programs\Python\Python37-32\lib\site-packages\moviepy\video\io\ffmpeg_tools.py", line 20, in ffmpeg_movie_from_frames
"-b", "%dk"%bitrate,
TypeError : %d format : a number is required, not str