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• How to Identify the Version of ffmpeg.dll in WebView2 Runtime Fixed Version

  19 février, par Po-Sen

  I am currently using the WebView2 runtime fixed version. After expanding the package, I found multiple DLL files, including ffmpeg.dll.

  


  In the file properties, the file version is displayed as 0.0.0.0, and the only version-related information I can see is the product version : git-2024-04-25-e3581fa2dd.

  


  

  


  This format is different from the numeric versioning scheme I see on the official FFmpeg website : https://ffmpeg.org/download.html#releases.

  


  

  


  I want to trace the exact FFmpeg version used in this WebView2 distribution.
Initially, I assumed e3581fa2dd was a Git commit SHA. However, after cloning the FFmpeg repository from https://git.ffmpeg.org/ffmpeg.git, I could not find this commit.

  


  Our product was recently scanned and found to contain FFmpeg version 3.4.2, which has known CVE security vulnerabilities. Therefore, we want to clarify the actual version of FFmpeg included in the WebView2 runtime.

  


  How can I determine the version of ffmpeg.dll included in WebView2 runtime fixed version ?

  


• avformat : remove deprecated FF_API_GET_DUR_ESTIMATE_METHOD

  19 février, par James Almer

  avformat : remove deprecated FF_API_GET_DUR_ESTIMATE_METHOD
  Deprecated since 2024-03-06.
  Signed-off-by : James Almer <jamrial@gmail.com>
  

  • [DH] libavformat/avformat.h
  • [DH] libavformat/options.c
  • [DH] libavformat/version_major.h

• HLS. FFmpeg : error when loading first segment [closed]

  30 avril 2024, par rus_99_pk

  I'm trying to download a streaming video using ffmpeg. There is a file in the format *.m3u8. BUT, if everything was so simple, I would not have come here.

  


  There are a number of nuances :

  


  

  1. It cannot be downloaded by specifying a link to the file

  


  2. If you upload the file and look at its contents, there will be : #EXT-X-KEY:METHOD=AES-128,URI="[KEY],IV=[IV]

  


  


  With a URI, the task is easy to solve ; just specify the value list.m3u8.

  


  I end up getting :

  


  Error when loading first segment 'https://cdnv-m12.boomstream.com/vod/hash:21596def3216ed982660d609751b8078/id:35105.29443.1039983.85853232.150106.hls/time:0/data:eyJ2ZXJzaW9uIjoiMS4yLjk3IiwidXNlX2RpcmVjdF9saW5rcyI6InllcyIsImlzX2VuY3J5cHQiOiJ5ZXMifQ==/m61/2024/04/27/1Q0idCxb.mp4/media-1.ts'


  


  But with IV it’s more difficult, because file processing is performed on the server side. Please help.

  


  I tried to get JS with similar variable names and monitor network traffic using Wireshark, in the hope of catching a response from the server with IV.

  


  But it didn't help me.

  


  My script for download :

  


  #!/bin/bash
clear

link="/home/user/Download/chunklist.m3u8"
filename="testfile"

ffmpeg \
-headers $'User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:124.0) Gecko/20100101 Firefox/124.0\r\nAccept: */*\r\nAccept-Language: ru-RU,ru;q=0.8,en-US;q=0.5,en;q=0.3\r\nAccept-Encoding: gzip, deflate, br\r\nOrigin: https://example.com\r\nConn>
-protocol_whitelist "file,http,https,tcp,tls,crypto" \
-allowed_extensions ALL \
-f hls \
-i "$link" \
-map p:2 \
-bsf:a aac_adtstoasc  -vcodec copy  -c copy -crf 50 /tmp/$filename.mp4 -v trace


  


  Trace log