Recherche avancée

Sur d’autres sites (5293)

• Converting Video files in a Azure Webjob with ffMpeg

  13 décembre 2016, par Kevin Phifer

  I’m having trouble using ffMpeg in an Azure webjob.

  I found the following article (How to call ffmpeg.exe to convert audio files on Windows Azure ?) and it is exactly what I want to do, however, I cannot get ffMpeg to execute and it gives no error message.

  To diagnose the problem, I have boiled it down to its essentials by uploading ffMpeg, a video file to convert, and batch file to run it :

  

  The script in run.cmd is simply :

  del output.mp4
  
  ffmpeg -i screencast.wmv -c:v libx264 -r 15 output.mp4

  This works on my personal machine, but ran as a webjob I get results below.

  [12/08/2015 15:42:39 > bf9dd6: SYS INFO] Status changed to Initializing
  
  [12/08/2015 15:42:39 > bf9dd6: SYS INFO] Job directory change detected: Job file 'ffmpegtest\output.mp4' exists in source directory but not in working directory.
  
  [12/08/2015 15:42:47 > bf9dd6: SYS INFO] Run script 'run.cmd' with script host - 'WindowsScriptHost'
  
  [12/08/2015 15:42:48 > bf9dd6: SYS INFO] Status changed to Running<br />
  
  [12/08/2015 15:42:48 > bf9dd6: INFO] 
  
  [12/08/2015 15:42:48 > bf9dd6: INFO] D:\local\Temp\jobs\triggered\ffMpeg\y1bdnb1e.03k\ffmpegtest>del output.mp4 
  
  [12/08/2015 15:42:48 > bf9dd6: INFO] 
  
  [12/08/2015 15:42:48 > bf9dd6: INFO] D:\local\Temp\jobs\triggered\ffMpeg\y1bdnb1e.03k\ffmpegtest>ffmpeg -i screencast.wmv -c:v libx264 -r 15 output.mp4 
  
  [12/08/2015 15:42:49 > bf9dd6: SYS INFO] Status changed to Failed
  
  [12/08/2015 15:42:49 > bf9dd6: SYS ERR ] Job failed due to exit code -1073741515

  Edit :
  Additionally, it was suggested that I run using Kudu console. Still no luck :
  

  Solution :
  I ended up needing to run the 32 version of ffMpeg and not the 64 bit. Thanks so much @mathewc !

• Record video with Xvfb + FFmpeg using Selenium in headless mode

  12 mars 2024, par ifdef14

  I am trying to record video using Selenium in headless mode. I am using Xvfb and FFmpeg bindings for Python. I've already tried :

  


  import subprocess
import threading
import time

from chromedriver_py import binary_path
from selenium import webdriver
from selenium.webdriver.chrome.service import Service
from xvfbwrapper import Xvfb


def record_video(xvfb_width, xvfb_height, xvfb_screen_num):
    subprocess.call(
        [
            'ffmpeg',
            '-f',
            'x11grab',
            '-video_size',
            f'{xvfb_width}x{xvfb_height}',
            '-i',
            xvfb_screen_num,
            '-codec:v',
            'libx264',
            '-r',
            '12',
            'videos/video.mp4',
        ]
    )


with Xvfb() as xvfb:
    '''
    xvfb.xvfb_cmd[1]) returns scren num
    :217295622
    :319294854
    :
    '''
    xvfb_width, xvfb_height, xvfb_screen_num = xvfb.width, xvfb.height, xvfb.xvfb_cmd[1]
    thread = threading.Thread(target=record_video, args=(xvfb_width, xvfb_height, xvfb_screen_num))
    thread.start()
    opts = webdriver.ChromeOptions()
    opts.add_argument('--headless')
    try:
        driver = webdriver.Chrome(service=Service(executable_path=binary_path), options=opts)
    finally:
        driver.close()
        driver.quit()



  


  As much as I understand xvfb.xvfb_cmd[1] returns an information about virtual display isn't it ? When I executed this script, I got the error message :

  


  [x11grab @ 0x5e039cfe2280] Failed to query xcb pointer0.00 bitrate=N/A speed=N/A    
:1379911620: Generic error in an external library


  


  I also tried to use the following commands :

  


  xvfb-run --listen-tcp --server-num 1 --auth-file /tmp/xvfb.auth -s "-ac -screen 0 1920x1080x24" python main.py &

  


  ffmpeg -f x11grab -video_size 1920x1080 -i :1 -codec:v libx264 -r 12 videos/video.mp4

  


  In the commands above, there are used xvfb-run --server-num 1 and ffmpeg -i :1, why ?

  


  Overall, when Selenium is running in the headless mode what's going on behind the scenes ? Is it using virtual display ? If yes, how can I detect display id of this, etc. Am I on the right path ?

  


  I am not using Docker or any kind of virtualization. All kind of tests are running on my local Ubuntu machine.

  


• Remove .travis.yml

  17 avril 2024, par Martin Storsjö

  Remove .travis.yml
  Travis is no longer relevant for attempting to run CI jobs in our
  
  setup.
  Signed-off-by : Martin Storsjö <martin@martin.st>
  

  • [DH] .travis.yml