VideoHelp Forum
+ Reply to Thread
Results 1 to 4 of 4
Thread
  1. 13th Jul 2024 03:12 #1
    larley
    larley is offline
    ‎ larley's Avatar
    Join Date
    Oct 2023
    Search PM
    Hi all,
    i downloaded and decrypted an AAC audio file. It looks like it should be playable (has file header, etc.) but neither ffmpeg nor VLC can play it.
    I wasn't able to find anything online.

    Help is greatly appreciated.
    Image Attached Files
    Quote Quote  
  2. 13th Jul 2024 12:57 #2
    El Heggunte
    El Heggunte is offline
    DECEASED
    Join Date
    Jun 2009
    Location
    Heaven
    Search Comp PM
    You'd better tell us from where you downloaded it and how you decrypted it.
    MediaInfo does not read it as an ADTS stream.
    Last edited by El Heggunte; 13th Jul 2024 at 13:00. Reason: pleonasm :-/
    "Programmers are human-shaped machines that transform alcohol into bugs."
    Quote Quote  
  3. 13th Jul 2024 13:30 #3
    larley
    larley is offline
    ‎ larley's Avatar
    Join Date
    Oct 2023
    Search PM
    The file is from Spotify in the 'AAC_24' format. The decryption is VERY complicated and uses AES.
    If you really wanna know, look at this: https://github.com/librespot-org/librespot-java/discussions/421#discussioncomment-10037403
    Last edited by larley; 13th Jul 2024 at 13:36.
    https://github.com/DevLARLEY
    Keys from just the License URL: WidevineFetch
    Quote Quote  
  4. 13th Jul 2024 14:47 #4
    El Heggunte
    El Heggunte is offline
    DECEASED
    Join Date
    Jun 2009
    Location
    Heaven
    Search Comp PM
    Hummm, it appears your problematic file is a RAW .aac file, which is ""unplayable"" by nature or/and by definition

    ffprobe does detect it as Advanced Audio Coding, but all the other info besides that is a mess

    I tried to wrap it in an MP4 container with ffmpeg, but the program outputs a zero-byte MP4 file.

    I also gave a try to GraphStudioNext, I managed to build various graphs, however none of the graphs generated an audible output.
    "Programmers are human-shaped machines that transform alcohol into bugs."
    Quote Quote  



Similar Threads

« Previous Thread | Next Thread »
Visit our sponsor! Try DVDFab and backup Blu-rays!