Broken or am i doing something wrong ??

[Random-Code-Guy]

I am trying to use this to decrypt a dash media segment from a vod movie

i am using nodejs 18 this is the code i am using

`
keys = {
[row.vkid]:row.vkey
};

     const encrypted = fs.readFileSync(combinedLocation);

    mp4decrypt.decrypt(encrypted, keys).then(decrypted => {
         fs.writeFileSync('dec.mp4', decrypted)
    })

`

the media file does not play after decryption using vlc i get the following errors

faad warning: PCE shall be the first element in a frame
faad warning: Channel coupling not yet implemented
faad warning: Invalid number of channels
faad warning: Bitstream value not allowed by specification
faad warning: PCE shall be the first element in a frame
faad warning: Unexpected channel configuration change
faad warning: Channel coupling not yet implemented
faad warning: Bitstream value not allowed by specification
faad warning: Channel coupling not yet implemented
faad warning: Unexpected channel configuration change
faad warning: Bitstream value not allowed by specification
faad warning: Unexpected channel configuration change
faad warning: Invalid number of channels
faad warning: Bitstream value not allowed by specification
faad warning: Unexpected channel configuration change
faad warning: Bitstream value not allowed by specification
faad warning: Unexpected channel configuration change
faad warning: Unexpected fill element with SBR data
faad warning: Maximum number of bitstream elements exceeded
faad warning: PCE shall be the first element in a frame
faad warning: Channel coupling not yet implemented
faad warning: Unexpected channel configuration change
faad warning: Invalid number of channels
faad warning: Channel coupling not yet implemented
faad warning: Invalid number of channels
faad warning: Maximum number of bitstream elements exceeded
faad warning: Invalid number of channels
faad warning: Channel coupling not yet implemented
faad warning: Channel coupling not yet implemented
faad warning: Invalid number of channels
faad warning: Bitstream value not allowed by specification
faad warning: Channel coupling not yet implemented
faad warning: Unexpected channel configuration change
faad warning: PCE shall be the first element in a frame
faad warning: Bitstream value not allowed by specification
faad warning: Bitstream value not allowed by specification
faad warning: Unexpected channel configuration change
faad warning: Channel coupling not yet implemented
faad warning: Bitstream value not allowed by specification
faad warning: Invalid number of channels
faad warning: Channel coupling not yet implemented
faad warning: Gain control not yet implemented
faad warning: Invalid number of channels
faad warning: Bitstream value not allowed by specification
faad warning: Unexpected channel configuration change

I have tested the exact same media files kid and key using mp4decrypt running it as an spawned process and the output plays correctly it is only when using this modual i run into issues but there are no error messages or anything provided for failed decryption or anything so its really hard to tell what the issue is