StreamFab v5.0.4.5 DRM MPD Module Incorrect File Size

jsinfate

Hello.
I used StreamFab to log in to Shudder and download a movie. StreamFab says the movie
is 1280x720 with Bitrate at 456000, but once the movie is downloaded the file size is only 380MB.

Movie Info:
==================

General
Complete name : F:\Projects\StreamFab\Moloch SHUDDER.mp4
Format : MPEG-4
Format profile : Base Media
Codec ID : isom (isom/iso2/avc1/mp41)
File size : 372 MiB
Duration : 1 h 38 min
Overall bit rate : 526 kb/s
Movie name : Moloch | SHUDDER
Writing application : Lavf58.76.100

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Main@L3.1
Format settings : CABAC / 4 Ref Frames
Format settings, CABAC : Yes
Format settings, Reference fra : 4 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 1 h 38 min
Bit rate : 457 kb/s
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 23.976 (24000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.021
Stream size : 323 MiB (87%)
Writing library : Zencoder Video Encoding System
Color range : Limited
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709
Codec configuration box : avcC

Audio
ID : 2
Format : AAC LC
Format/Info : Advanced Audio Codec Low Complexity
Codec ID : mp4a-40-2
Duration : 1 h 38 min
Bit rate mode : Constant
Bit rate : 64.0 kb/s
Channel(s) : 2 channels
Channel layout : L R
Sampling rate : 48.0 kHz
Frame rate : 46.875 FPS (1024 SPF)
Compression mode : Lossy
Stream size : 45.2 MiB (12%)
Language : English
Default : Yes
Alternate group : 1

october262

Hello.
I used StreamFab to log in to Shudder and download a movie. StreamFab says the movie
is 1280x720 with Bitrate at 456000, but once the movie is downloaded the file size is only 380MB.

Movie Info:
==================

General
Complete name : F:\Projects\StreamFab\Moloch SHUDDER.mp4
Format : MPEG-4
Format profile : Base Media
Codec ID : isom (isom/iso2/avc1/mp41)
File size : 372 MiB
Duration : 1 h 38 min
Overall bit rate : 526 kb/s
Movie name : Moloch | SHUDDER
Writing application : Lavf58.76.100

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Main@L3.1
Format settings : CABAC / 4 Ref Frames
Format settings, CABAC : Yes
Format settings, Reference fra : 4 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 1 h 38 min
Bit rate : 457 kb/s
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 23.976 (24000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.021
Stream size : 323 MiB (87%)
Writing library : Zencoder Video Encoding System
Color range : Limited
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709
Codec configuration box : avcC

Audio
ID : 2
Format : AAC LC
Format/Info : Advanced Audio Codec Low Complexity
Codec ID : mp4a-40-2
Duration : 1 h 38 min
Bit rate mode : Constant
Bit rate : 64.0 kb/s
Channel(s) : 2 channels
Channel layout : L R
Sampling rate : 48.0 kHz
Frame rate : 46.875 FPS (1024 SPF)
Compression mode : Lossy
Stream size : 45.2 MiB (12%)
Language : English
Default : Yes
Alternate group : 1

jsinfate

is this from Shudders own website or is it Shudder through amazon prime ??
might want to post the streamfab internal log files.

jsinfate

It is from shudder.com, the website itself.

october262

It is from shudder.com, the website itself.
jsinfate

shudder may not be a supported website yet - see post #298 - https://forum.dvdfab.cn/forum/software-support-english/youtube-to-mp3-youtube-video-downloader/387865-post-the-feature-request-or-suggestions-about-drm-video-downloader-here-~updated/page20#post400312=

jsinfate

StreamFab detects that the DRM protection is MPD, so shouldn't it work? I am able to download from the site fine, it's just not that downloading at the correctly stated file size. I thought that it was the DRM technology that supported not necessarily individual websites?

october262

StreamFab detects that the DRM protection is MPD, so shouldn't it work? I am able to download from the site fine, it's just not that downloading at the correctly stated file size. I thought that it was the DRM technology that supported not necessarily individual websites?
jsinfate

different websites use different DRM protections. maybe shudder is using something that is not currently supported by streamfab.

jsinfate

If it wasn't supported would it appear as DRM MPD within the program or allow me download the movie at all? I would think that it just wouldn't work at all, maybe I'm wrong.

october262

If it wasn't supported would it appear as DRM MPD within the program or allow me download the movie at all? I would think that it just wouldn't work at all, maybe I'm wrong.
jsinfate

i have no idea, the developers would know more.

i don't see shudder listed here either - https://www.dvdfab.cn/drm-mpd-downloader.htm?trackid=headmenu2

jsinfate

Hopefully one of them sees this and has some insight.

Cats4U

The file size is absolutely correct for the bit rates used. MediaInfo shows 372 MiB and the Bitrate Calculator at https://www.dr-lex.be/info-stuff/videocalc.html shows 366.6 MiB. Converted over to MB the movie file size would be 384.41 MB. You said 380 MB and your first image above showed 380812 KB (380.812 MB). Close enough. These calculators are always slightly off due to overhead and other unknowns. There's nothing wrong with the file size. The small size is the result of the horrendously small bit rate.

jsinfate

Well that's part of what I mean, I can't think that Shudder is streaming videos with a total file size of only 380MB, that's jut a little over half the size of a CD. I'm just wondering if anyone from the DVDFab team can confirm if these sizes are correct.

Mike_M

Well that's part of what I mean, I can't think that Shudder is streaming videos with a total file size of only 380MB, that's jut a little over half the size of a CD. I'm just wondering if anyone from the DVDFab team can confirm if these sizes are correct.
jsinfate

I downloaded Moloch from Amazon Prime via channel subscription AMC+ (Which includes Shudder on Amazon) via alternative software and it's 5,624,285KB size.

I also noticed it's 1920x800 AVC with bitrate of 7,536. :)

I *tried* to download via StreamFab, but the speed is only about 1.85Mbs vs. over 16Mbs for alternative.

I have it stored offline from downloading via Amazon/AMC+(Shudder) with StreamFab, let me grab the disk & I'll get it's specs via StreamFab/Amazon/AMC+(Shudder).

Attachments:

Directory listing of Moloch
Media Info of Moloch
Speed of StreamFab download for Amazon with AMC+/Shudder is only 1.85Mbs

jsinfate

I grabbed a copy from another source that has been encoded into H265 that is also 1920x800. So it does seem that StreamFab is not only unable to download in full 1080p but it appears that it grabs the lowest available quality.

Mike_M

Moloch via Amazon prime with AMC+ Channel (That includes Shudder).

1920x800 AVC 8,145 Bitrate

File size 5,997,349kb

Display of download size indicated 5.2 (not much off) when I just tried queuing it up.

Just f/y/i...

jsinfate

Thank you for the information, I appreciate it.

Mike_M

Thank you for the information, I appreciate it.
jsinfate

Also, StreamFab didn't get "Dolby Digital Plus" via Amazon/AMC+(Shudder) and it's available.

jsinfate

Can anyone from DVDFab or the development team shed any light on what is happening?

Cats4U

That's part of what I mean, I can't think that Shudder is streaming videos with a total file size of only 380MB, that's jut a little over half the size of a CD. I'm just wondering if anyone from the DVDFab team can confirm if these sizes are correct.
jsinfate

One thing I noticed in your MediaInfo and it could amount to nothing but I found it curious...

Zencoder is a cloud-based encoding service. In other words, you send them your files one way on the Internet and they send them back the way you want them. As far as I know StreamFab doesn't use Zencoder. It makes no sense for StreamFab to use Zencoder. They'd have to pay for each use vs. the usual processing on your computer. Hopefully someone at DVDFab can find the reason for the extremely slow bitrate.

jsinfate

One thing I noticed in your MediaInfo and it could amount to nothing but I found it curious...

Zencoder is a cloud-based encoding service. In other words, you send them your files one way on the Internet and they send them back the way you want them. As far as I know StreamFab doesn't use Zencoder. It makes no sense for StreamFab to use Zencoder. They'd have to pay for each use vs. the usual processing on your computer. Hopefully someone at DVDFab can find the reason for the extremely slow bitrate.
Cats4U

Very interesting, I did not notice that. Great point too, I don't see why it would use it unless it was an open source writing library that they use to transcode? But still, the issue of downloading a movie at only 380MB needs to be addressed.