Strip Playready and Widevine DRM

[freaknik]

Hi I have a 6.5 gb movie that has this drm encrypting it.

I got it from an Mpeg-DASH stream that was encrypted.

Anyway, I got the keys and the key id from the same site I got the video.

I was using Bento4 mp4decrypt and it decodes the movie without displaying errors but then the final product is still encrypted.

The key id looks like this:

cenc:default_KID="562386c1-854b-11e6-89af-842b2b5247fa"

and the keys look like this:

widevine: "EDEF8BA9-79D6-4ACE-A3C8-27DCD51D21ED",
playready: "9A04F079-9840-4286-AB92-E65BE0885F95"

Here is the readme from mp4decrypt:

usage: mp4decrypt [options] <input> <output>
Options are:
  --show-progress : show progress details
  --key <id>:<k>
      <id> is either a track ID in decimal or a 128-bit KID in hex,
      <k> is a 128-bit key in hex
      (several --key options can be used, one for each track or KID)
      note: for dcf files, use 1 as the track index
      note: for Marlin IPMP/ACGK, use 0 as the track ID
      note: KIDs are only applicable to some encryption methods like MPEG-CENC
  --fragments-info <filename>
      Decrypt the fragments read from <input>, with track info read
      from <filename>.

And here is my syntax:

mp4decrypt.exe --key 562386c1-854b-11e6-89af-842b2b5247fa:EDEF8BA9-79D6-4ACE-A3C8-27DCD51D21ED --key 562386c1-854b-11e6-89af-842b2b5247fa:9A04F079-9840-4286-AB92-E65BE0885F95 input.mp4 output.mp4

Thanks for anyone who takes a look Anyone know how to decrypt successfully?

[freaknik]

Woohoo got the encryption to go away but the files are corrupt af and I can't listen or see them. Is there any way to get them to be viewable or am I hosed? From ffmpeg:

C:\Users\Office\Desktop\Pioneers>ffmpeg -i vid.mp4
ffmpeg version 3.0.2 Copyright (c) 2000-2016 the FFmpeg developers
  built with gcc 4.9.3 (GCC)
  configuration: --enable-static --disable-shared --disable-ffplay --disable-ffs
erver --enable-memalign-hack --enable-libmp3lame --enable-libass --enable-librtm
p --enable-fontconfig --enable-libfreetype --enable-zlib --enable-libx264 --enab
le-libspeex --extra-libs='-lrtmp -lpolarssl -lws2_32 -lwinmm -lexpat -lfreetype
-lfribidi -lz' --arch=x86 --enable-runtime-cpudetect --enable-pthreads --target-
os=mingw32 --cross-prefix=i686-w64-mingw32- --enable-gpl --pkg-config=pkg-config
 --bindir='/jenkins/workspace/FFmpeg - Win32/target'
  libavutil      55. 17.103 / 55. 17.103
  libavcodec     57. 24.102 / 57. 24.102
  libavformat    57. 25.100 / 57. 25.100
  libavdevice    57.  0.101 / 57.  0.101
  libavfilter     6. 31.100 /  6. 31.100
  libswscale      4.  0.100 /  4.  0.100
  libswresample   2.  0.101 /  2.  0.101
  libpostproc    54.  0.100 / 54.  0.100
[h264 @ 02c71380] error while decoding MB 89 7, bytestream -26
[h264 @ 02c71380] concealing 7280 DC, 7280 AC, 7280 MV errors in I frame
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'vid.mp4':
  Metadata:
    major_brand     : iso6
    minor_version   : 1
    compatible_brands: mp42dashmsdhmsixiso6avc1isom
    creation_time   : 2016-09-28 07:48:34
  Duration: 01:54:56.51, start: 0.041711, bitrate: 8067 kb/s
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080
 [SAR 1:1 DAR 16:9], 8064 kb/s, 23.98 fps, 23.98 tbr, 90k tbn, 47.95 tbc (defaul
t)
    Metadata:
      encoder         : AVC Coding
At least one output file must be specified

C:\Users\Office\Desktop\Pioneers>ffmpeg -i sound.mp4
ffmpeg version 3.0.2 Copyright (c) 2000-2016 the FFmpeg developers
  built with gcc 4.9.3 (GCC)
  configuration: --enable-static --disable-shared --disable-ffplay --disable-ffs
erver --enable-memalign-hack --enable-libmp3lame --enable-libass --enable-librtm
p --enable-fontconfig --enable-libfreetype --enable-zlib --enable-libx264 --enab
le-libspeex --extra-libs='-lrtmp -lpolarssl -lws2_32 -lwinmm -lexpat -lfreetype
-lfribidi -lz' --arch=x86 --enable-runtime-cpudetect --enable-pthreads --target-
os=mingw32 --cross-prefix=i686-w64-mingw32- --enable-gpl --pkg-config=pkg-config
 --bindir='/jenkins/workspace/FFmpeg - Win32/target'
  libavutil      55. 17.103 / 55. 17.103
  libavcodec     57. 24.102 / 57. 24.102
  libavformat    57. 25.100 / 57. 25.100
  libavdevice    57.  0.101 / 57.  0.101
  libavfilter     6. 31.100 /  6. 31.100
  libswscale      4.  0.100 /  4.  0.100
  libswresample   2.  0.101 /  2.  0.101
  libpostproc    54.  0.100 / 54.  0.100
[aac @ 006f1400] Sample rate index in program config element does not match the
sample rate index configured by the container.
[aac @ 006f1400] Remapped id too large
[aac @ 006f1400]  is not implemented. Update your FFmpeg version to the newest o
ne from Git. If the problem still occurs, it means that your file has a feature
which has not been implemented.
[aac @ 006f1400] If you want to help, upload a sample of this file to ftp://uplo
ad.ffmpeg.org/incoming/ and contact the ffmpeg-devel mailing list. (ffmpeg-devel
@ffmpeg.org)
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'sound.mp4':
  Metadata:
    major_brand     : iso6
    minor_version   : 1
    compatible_brands: mp42dashmsdhmsixiso6avc1isom
    creation_time   : 2016-09-28 07:48:38
  Duration: 01:54:56.64, start: 0.000000, bitrate: 193 kb/s
    Stream #0:0(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, 5.1, fltp,
192 kb/s (default)
    Metadata:
      creation_time   : 2016-09-28 07:36:41
At least one output file must be specified

Can these even be fixed?

[Hoser Rob]

If the encyption is any frakking good, and it is, then of course you won't be able to decrpyt it.

[freaknik]

Dang. Be a lot cooler if I could. Thanks eh

[TubeBar]

How did you manage to get the Encryption Keys?

So far all I have seen with PlayReady is it's easy to grab the files just about any Videp Plugin Downloader in any Browser will do it but they are all AES encrypted w/o any keys.

Personally I want to strip the DRM from my Movie and TV Collection I legally purchased on Amazon but I have not been able to do anything except download useless files that would take 100 years to Brute Force the encryption