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• I am getting this "Error : FFmpeg/avconv not found !"

  5 septembre 2024, par Fhabbulous

  I am trying to create a discord bot, however receive this error every time I try to run a youtube link.

  


  Error: FFmpeg/avconv not found!
    at Function.getInfo (C:\Users\-\discord-bot\node_modules\prism-media\src\core\FFmpeg.js:130:11)
    at Function.create (C:\Users\-\discord-bot\node_modules\prism-media\src\core\FFmpeg.js:143:38)
    at new FFmpeg (C:\Users\-\discord-bot\node_modules\prism-media\src\core\FFmpeg.js:44:27)
    at AudioPlayer.playUnknown (C:\Users\-\discord-bot\node_modules\discord.js\src\client\voice\player\BasePlayer.js:47:20)
    at VoiceConnection.play (C:\Users\-\discord-bot\node_modules\discord.js\src\client\voice\util\PlayInterface.js:71:28)
    at Object.play (C:\Users\-\discord-bot\commands\play.js:78:8)
    at Object.execute (C:\Users\-\discord-bot\commands\play.js:48:16)
    at processTicksAndRejections (internal/process/task_queues.js:97:5)
(node:14004) UnhandledPromiseRejectionWarning: DiscordAPIError: Cannot send an empty message
    at RequestHandler.execute (C:\Users\-\discord-bot\node_modules\discord.js\src\rest\RequestHandler.js:170:25)
    at processTicksAndRejections (internal/process/task_queues.js:97:5)
(node:14004) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandl
ed promise rejection, use the CLI flag `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 1)
(node:14004) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.


  


  I installed ffmpeg with npm install -g ffmpeg-binaries to try and install it globally. I also added ffmpeg to PATH, but that did not seem to work.

  


  Anyway to fix it ?

  


• Why am I getting FFMPEG "cannot set sample format 0x10000 2 (Invalid argument)" error ? [duplicate]

  30 mars 2020, par Embedded

  I’m trying to stream audio input from Seeed Studio 4-Mic-Array Respeaker on desired IP address and port on Raspberry Pi 4.

  Command that I’m using is :

  ffmpeg -re -f alsa -i hw:1,0 -ac 4 -ar 16000 -f rtp rtp://10.0.0.1:1234

  Error I’m getting is :

  cannot set sample format 0x10000 2 (Invalid argument)

  Result from arecord --dump-hw-params -D hw:1,0 command is :

  Recording WAVE 'stdin' : Unsigned 8 bit, Rate 8000 Hz, Mono
  
  HW Params of device "hw:1,0":
  
  --------------------
  
  ACCESS:  MMAP_INTERLEAVED RW_INTERLEAVED
  
  FORMAT:  S32_LE
  
  SUBFORMAT:  STD
  
  SAMPLE_BITS: 32
  
  FRAME_BITS: 128
  
  CHANNELS: 4
  
  RATE: [8000 48000]
  
  PERIOD_TIME: (333 2048000]
  
  PERIOD_SIZE: [16 16384]
  
  PERIOD_BYTES: [256 262144]
  
  PERIODS: [2 2048]
  
  BUFFER_TIME: (666 4096000]
  
  BUFFER_SIZE: [32 32768]
  
  BUFFER_BYTES: [512 524288]
  
  TICK_TIME: ALL
  
  --------------------
  
  arecord: set_params:1299: Sample format non available
  
  Available formats:
  
  - S32_LE

• OpenCV VideoWriter produces "can't find starting number" error

  5 avril 2020, par user3325139

  I am trying to write 16-bit grayscale video using the FFV1 codec and opencv.ImageWriter on Windows 10

  



  Here is my code :

  



  import numpy as np
import cv2, pdb

print(cv2.getBuildInformation())

def to8(img):
    return (img/256).astype('uint8')

cap = cv2.VideoCapture(0+cv2.CAP_DSHOW)
cap.set(cv2.CAP_PROP_FOURCC, cv2.VideoWriter_fourcc('Y','1','6',' '))
cap.set(cv2.CAP_PROP_CONVERT_RGB, False)

out = cv2.VideoWriter('out.avi', cv2.VideoWriter_fourcc('F','F','V','1'), cap.get(cv2.CAP_PROP_FPS), (int(cap.get(cv2.CAP_PROP_FRAME_WIDTH)),int(cap.get(cv2.CAP_PROP_FRAME_HEIGHT))))

while True:
    ret, frame = cap.read()
    frame = cv2.normalize(frame,None,0,65535,cv2.NORM_MINMAX)

    cv2.imshow('Video',to8(frame))
    out.write(frame)

    if cv2.waitKey(1) & 0xFF == ord('q'):
        break
cap.release()
out.release()
cv2.destroyAllWindows()


  



  And here is my error :

  



  [ERROR:0] global C:\projects\opencv-python\opencv\modules\videoio\src\cap.cpp (415) cv::VideoWriter::open VIDEOIO(CV_IMAGES): raised OpenCV exception:

OpenCV(4.2.0) C:\projects\opencv-python\opencv\modules\videoio\src\cap_images.cpp:253: error: (-5:Bad argument) CAP_IMAGES: can't find starting number (in the name of file): out.avi in function 'cv::icvExtractPattern'


  



  I am running this script from a command window with admin privileges. I've tried both making sure the output file does and does not exist before running.

  



  My OpenCV build information is here : https://pastebin.com/whtF6ixG

  



  Thanks !

  



  EDIT :
Based on Rotem's suggestion, instead of using VideoWriter I piped directly to FFMPEG using ffmpeg-python :

  



  import numpy as np
import cv2, pdb
import ffmpeg

def to8(img):
    return (img/256).astype('uint8')

cap = cv2.VideoCapture(0+cv2.CAP_DSHOW)
cap.set(cv2.CAP_PROP_FOURCC, cv2.VideoWriter_fourcc('Y','1','6',' '))
cap.set(cv2.CAP_PROP_CONVERT_RGB, False)

ff_proc = (
    ffmpeg
    .input('pipe:',format='rawvideo',pix_fmt='gray16le',s='%sx%s'%(int(cap.get(cv2.CAP_PROP_FRAME_WIDTH)),int(cap.get(cv2.CAP_PROP_FRAME_HEIGHT))),r='60')
    .output('out3.avi',vcodec='ffv1',an=None)
    .run_async(pipe_stdin=True)
)

while True:
    ret, frame = cap.read()

    cv2.imshow('Video',to8(frame))
    ff_proc.stdin.write(frame)

    if cv2.waitKey(1) & 0xFF == ord('q'):
        break

out.terminate()
cap.release()
cv2.destroyAllWindows()