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• qsv : remove CONFIG_VAAPI for mutiple formats

  14 février 2023, par Tong Wu

  qsv : remove CONFIG_VAAPI for mutiple formats
  Remove CONFIG_VAAPI for VUYX, YUYV422, Y210, XV30, Y212, XV36.
  Make 8-bit, 10-bit, 12-bit YUV 4:2:2 video sources as well as YUV 4:4:4
  
  video sources supported by d3d11va and dxva2 just like what VAAPI does.
  Sign-off-by : Tong Wu <tong1.wu@intel.com>
  

  • [DH] libavcodec/qsv.c
  • [DH] libavutil/hwcontext_qsv.c

• ffmpeg does not work with a large number of urls in the request

  2 avril 2023, par Hack team

  If i put one url in the array, everything works perfectly, but when i add more than one url to the array, it throws an error :

  


  HTTP error 403 Forbidden https://p16-sign-sg.tiktokcdn.com/tos-alisg-i-photomode-sg/2c182489bc4e42dcbb70f37a283cf5f1~tplv-photomode-image.jpeg?from=photomode.AWEME_DETAIL&x-expires=1681740000&x-signature=BaB75chVtpoZg6sE%2B0oWmxtzky0%3D https://p16-sign-sg.tiktokcdn.com/tos-alisg-i-photomode-sg/34cae24dad35476d96d8db03b46076b9~tplv-photomode-image.jpeg?from=photomode.AWEME_DETAIL&x-expires=1681740000&x-signature=RTyGbq%2BfLz3hNahtLJyaWycQtPI%3D: Server returned 403 Forbidden (access denied)


  


  However, if i put each of the urls one by one, then access is available and everything works perfectly

  


  It feels like ffmpeg makes one out of three urls and catches an error because of it. But I don't understand how to handle urls.

  


  My code :

  


  from PIL import Image
from io import BytesIO

import requests
import ffmpeg

def make_even(n):
    return n + n % 2

list_of_urls = [
    "https://p16-sign-sg.tiktokcdn.com/tos-alisg-i-photomode-sg/2c182489bc4e42dcbb70f37a283cf5f1~tplv-photomode-image.jpeg?from=photomode.AWEME_DETAIL&x-expires=1681740000&x-signature=BaB75chVtpoZg6sE%2B0oWmxtzky0%3D",
    "https://p16-sign-sg.tiktokcdn.com/tos-alisg-i-photomode-sg/34cae24dad35476d96d8db03b46076b9~tplv-photomode-image.jpeg?from=photomode.AWEME_DETAIL&x-expires=1681740000&x-signature=RTyGbq%2BfLz3hNahtLJyaWycQtPI%3D",
    "https://p16-sign-sg.tiktokcdn.com/tos-alisg-i-photomode-sg/c2cb000f9332498caf6bd837f42e92c6~tplv-photomode-image.jpeg?from=photomode.AWEME_DETAIL&x-expires=1681740000&x-signature=4Zh5PFWNUYQhxQHuKM7P8rk8geU%3D"
]

response = requests.get(list_of_urls\[0\])
img = Image.open(BytesIO(response.content))

width, height = img.size
width = make_even(width)
height = make_even(height)

(
    ffmpeg
    .input(' '.join(list_of_urls), framerate=0.33)
    .filter('scale', width, height)
    .output('output.mp4')
    .run()
)


  


• FFmpeg recorded video is dark with Xvfb and chrome headless on Centos 7

  15 juin 2023, par narsy4

  I am trying to do a video recording of headless chrome session on Centos 7 (Amazon EC2 instance) using ffmpeg. I have installed ffmpeg, Xvfb and google chrome on the machine. I started Xvfb on :99, verified the display using xdpyinfo and started chrome. However when I run the ffmpeg cmd to capture the video (no errors in ffmpeg debug logs), the output is dark with a X sign in the centre of video screen. What am I doing wrong here ? Any help is appreciated.

  


  **Xvfb and chrome commands**
Xvfb :99 -screen 0 1920x1080x24 &
export DISPLAY=:99
google-chrome --headless --disable-gpu --no-sandbox --start-maximized --window-size=1920x1080 https://www.google.com



  


  **FFmpeg command**
ffmpeg -video_size 1920x1080 -framerate 30 -f x11grab -i :99 -loglevel debug -pix_fmt yuv420p /tmp/video.mp4



  


  dark video

  


  Searched for and read a few threads on this, but couldn't get it to work.