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• How can I decrypt this m3u8 and key file to mp4, Maybe its use javascript to decryptdata

  23 décembre 2020, par lionkinglk

  THIS is the video website :
the video website link

  


  From this video link, I download the m3u8, key.key and ts video files, and use FFMPEG to transform these files to mp4.
but Error :

  


  ffmpeg -allowed_extensions ALL -i a.m3u8 -c copy 01.mp4
ffmpeg version N-94813-g85386c36e3-ffmpeg-for-N_m3u8DL-CLI Copyright (c) 2000-2019 the FFmpeg developers
  built with gcc 8.2.0 (GCC)
  libavutil      56. 35.100 / 56. 35.100
  libavcodec     58. 56.101 / 58. 56.101
  libavformat    58. 32.104 / 58. 32.104
  libavfilter     7. 58.102 /  7. 58.102
  libavresample   4.  0.  0 /  4.  0.  0
  libswresample   3.  6.100 /  3.  6.100
[hls @ 007e3000] Skip ('#EXT-X-VERSION:3')
[hls @ 007e3000] Skip ('#EXT-X-ALLOW-CACHE:YES')
[hls @ 007e3000] Opening 'a.key' for reading
[hls @ 007e3000] Opening 'crypto:43924590506ad94e644d0bfac89e14b9_2_0.ts' for reading
[hls @ 007e3000] Opening 'crypto:43924590506ad94e644d0bfac89e14b9_2_1.ts' for reading
[hls @ 007e3000] Error when loading first segment '43924590506ad94e644d0bfac89e14b9_2_0.ts'
a.m3u8: Invalid data found when processing input


  


  The key file is

  


  00000000h: 46 F5 50 A3 7A 46 85 B5 8C 17 5B 0E 4B 8D F5 49 ; F鮌F叺?[.K嶕I
00000010h: F1 02 79 41 58 C7 A3 D3 17 90 0D D6 27 67 D6 D0 ; ?yAX牵???g中


  


  and the IV value in the m3u8 file is

  


  IV=0x786d9270e353d8758b621c1f775491f2


  


  Too long bytes to FFMPEG.

  


  ---

  


  In my limited experience with html and javascript, I found the Chrome blob a random named javascript file when the website page freshed.

  


  Chrome - Network log :

  


  XHR:43924590506ad94e644d0bfac89e14b9_2.m3u8?pid=1608691204584X1511260&device=desktop
XHR:43924590506ad94e644d0bfac89e14b9_2.key?token=1df110e5-ff1d-42de-bd39-b63304bb3062-53648385
XHR:43924590506ad94e644d0bfac89e14b9_2_0.ts?pid=1608691204584X1511260&device=desktop
Other:blob:https://www.sciconf.cn/93ebcbe3-0211-4ec0-94df-421024e8b505



  


  Some codes in the javascript file (blob:https://www.sciconf.cn/93ebcbe3-0211-4ec0-94df-421024e8b505)like :

  


  o = function() {
                function t(t, e, i, n) {
                    this.decryptdata = i,
                    this.discardEPB = n,
                    this.decrypter = new v.a(t,e,{
                        removePKCS7Padding: !1
                    })
                }
                var e = t.prototype;
                return e.decryptBuffer = function(t, e) {
                    this.decrypter.decrypt(t, this.decryptdata.key.buffer, this.decryptdata.iv.buffer, e)
                }


  


  I think the website use this js file to decrypt the key file and the IV value, but I can't add breakpoint to the random named js file.

  


  ---

  


  I am studying this for a long time, but no use.

  


  Please help or try to give some ideas how to achieve the decrypted key and IV ?

  


  Thanks in advance.

  


• Converting gifs to mp4 using python

  16 février 2021, par deeform

  currently im trying to convert some gifs which i have downloaded into mp4 files so i can upload them to a specific website. However, im getting some errors when trying to do this !

  


      for submission in subreddit.top(time_filter="day"):
    url_file = r'/home/pi/Desktop/Instagram/urls.txt'
    # Get the link of the submission
    url = submission.url
    if url.endswith('gif'):
        bad_chars = ['"', '*', '?', ':', '<', '>', '|', '\\', '/', '.']
        for i in bad_chars:
            submission.title = submission.title.replace(i, '')
        count += 1
        print(url + ' ' + submission.title)
        urllib.request.urlretrieve(url, r'C:\Users\myalt\OneDrive\Desktop\TikTok twitch poster\Clips\\' + str(
            submission.title) + '.gif')
        print(str(f'downloaded {count}'))
    for file in os.listdir(r'C:\Users\myalt\OneDrive\Desktop\TikTok twitch poster\Clips\\'):
        clip = mp.VideoFileClip(rf"C:\Users\myalt\OneDrive\Desktop\TikTok twitch poster\Clips\{file}")
        clip.write_videofile(f"{submission.title}.mp4")


  


  Error : OSError : MoviePy error : failed to read the duration of file C :\Users\myalt\OneDrive\Desktop\TikTok twitch poster\Clips\My friend claims that he can print a gun using his 3D printer, but I’m not impressed I’ve had a Canon printer for years.gif.
Here are the file infos returned by ffmpeg :

  


  ffmpeg version 4.2.2 Copyright (c) 2000-2019 the FFmpeg developers
built with gcc 9.2.1 (GCC) 20200122
configuration : —enable-gpl —enable-version3 —enable-sdl2 —enable-fontconfig —enable-gnutls —enable-iconv —enable-libass —enable-libdav1d —enable-libbluray —enable-libfreetype —enable-libmp3lame —enable-libopencore-amrnb —enable-libopencore-amrwb —enable-libopenjpeg —enable-libopus —enable-libshine —enable-libsnappy —enable-libsoxr —enable-libtheora —enable-libtwolame —enable-libvpx —enable-libwavpack —enable-libwebp —enable-libx264 —enable-libx265 —enable-libxml2 —enable-libzimg —enable-lzma —enable-zlib —enable-gmp —enable-libvidstab —enable-libvorbis —enable-libvo-amrwbenc —enable-libmysofa —enable-libspeex —enable-libxvid —enable-libaom —enable-libmfx —enable-amf —enable-ffnvcodec —enable-cuvid —enable-d3d11va —enable-nvenc —enable-nvdec —enable-dxva2 —enable-avisynth —enable-libopenmpt
libavutil 56. 31.100 / 56. 31.100
libavcodec 58. 54.100 / 58. 54.100
libavformat 58. 29.100 / 58. 29.100
libavdevice 58. 8.100 / 58. 8.100
libavfilter 7. 57.100 / 7. 57.100
libswscale 5. 5.100 / 5. 5.100
libswresample 3. 5.100 / 3. 5.100
libpostproc 55. 5.100 / 55. 5.100
C :\Users\myalt\OneDrive\Desktop\TikTok twitch poster\Clips\My friend claims that he can print a gun using his 3D printer, but I’m not impressed I’ve had a Canon printer for years.gif : Invalid data found when processing input

  


• Converting .aif to mp3 using pydub

  22 mars 2019, par Nick Wetaski

  I want to convert a bunch of music files located on my desktop (however trying to convert just one of them is the first step) from .aif to .mp3 however I am receiving an error code 1 from ffmpeg.

  I have ffmpeg and pydub installed

  Code :

  from os import path
  
  from pydub import AudioSegment
  
  from pydub.utils import which
  
  
  
  AudioSegment.converter = which("ffmpeg")
  
  
  
  aif_audio = AudioSegment.from_file("C:/Users/Nick/Desktop/scratch/landonmusic1.aif", format="aif")
  
  
  
  aif_audio.export("C:/Users/Nick/Desktop/scratch/landonmusic1.mp3", format="mp3")

  I am receiving the following feedback from Python Terminal :

  S C:\Users\Nick\OneDrive\ProgrammingProjects> & C:/Users/Nick/AppData/Local/Programs/Python/Python37-32/python.exe c:/Users/Nick/OneDrive/ProgrammingProjects/Classes/MusicFileConverter.py
  
  Traceback (most recent call last):
  
    File "c:/Users/Nick/OneDrive/ProgrammingProjects/Classes/MusicFileConverter.py", line 10, in <module>
  
      aif_audio = AudioSegment.from_file("C:/Users/Nick/Desktop/scratch/landonmusic1.aif", format="aif")
  
    File "C:\Users\Nick\AppData\Local\Programs\Python\Python37-32\lib\site-packages\pydub\audio_segment.py", line 704, in from_file
  
      p.returncode, p_err))
  
  pydub.exceptions.CouldntDecodeError: Decoding failed. ffmpeg returned error code: 1
  
  </module>

  Output from ffmpeg/avlib :

  b"ffmpeg version N-93431-g6dc1da416e Copyright (c) 2000-2019 the FFmpeg developers\r\n  built with gcc 8.2.1 (GCC) 20190212\r\n  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt\r\n  libavutil      56. 26.100 / 56. 26.100\r\n  libavcodec     58. 47.105 / 58. 47.105\r\n  libavformat    58. 26.101 / 58. 26.101\r\n  libavdevice    58.  7.100 / 58.  7.100\r\n  libavfilter     7. 48.100 /  7. 48.100\r\n  libswscale      5.  4.100 /  5.  4.100\r\n  libswresample   3.  4.100 /  3.  4.100\r\n  libpostproc    55.  4.100 / 55.  4.100\r\nUnknown input format: 'aif'\r\n"