Analyze video file properties - Ripping Question

[cr3ative]

I'm trying to see if there is a way to determine if a movie file was ripped from a DVD/Blu-ray. Currently the only way I can check is looking at the ffprobe output and checking the tags property:

"_STATISTICS_WRITING_APP-eng: MakeMKV v1.14.5 win(x64-release)"

This tells me it was created by the MakeMKV application. If I have the video properties is there a way to check that it's a straight copy of a DVD/Blu-ray?

Example:

1. Bitrate: (7,209 kb/s)
2. Resolution: (480p)
3. Bit Depth: (8)
4. Frame Rate: (23.976)
5. Color Space: (YUV)
6. Chroma Sampling: (4:2:0)
7. File Size: (4.35GiB)

[manono]

Where's the video and audio codecs? In your example, it has to be MPEG-2 if from a DVD. Except for the 23.976fps (all NTSC DVDs output 29.97fps), the rest are consistent with it being a DVD rip. How about a MediaInfo text printout?

[cr3ative]

I have a thought. Using the data I have above could I calculate the bitrate without using file size and see if that value is close to the value provided by mediainfo? I have a bunch of files(movies/shows) and I want a quick way to determine if they've been re-encoded after ripping.

I extracted the video stream out of the movie just for an example.

General
Unique ID                                : 182955288906884022244003373112494559093 (0x89A3E82D2724797CEC2DE563A5168F75)
Complete name                            : C:\Users\xadea\Desktop\out.mkv
Format                                   : Matroska
Format version                           : Version 4
File size                                : 4.36 GiB
Duration                                 : 1 h 26 min
Overall bit rate mode                    : Variable
Overall bit rate                         : 7 211 kb/s
Writing application                      : Lavf58.33.100
Writing library                          : Lavf58.33.100
ErrorDetectionType                       : Per level 1

Video
ID                                       : 1
ID in the original source medium         : 224 (0xE0)
Format                                   : MPEG Video
Format version                           : Version 2
Format profile                           : Main@Main
Format settings                          : CustomMatrix / BVOP
Format settings, BVOP                    : Yes
Format settings, Matrix                  : Custom
Format settings, GOP                     : Variable
Codec ID                                 : V_MPEG2
Codec ID/Info                            : MPEG 1 or 2 Video
Duration                                 : 1 h 26 min
Bit rate mode                            : Variable
Bit rate                                 : 7 209 kb/s
Maximum bit rate                         : 9 800 kb/s
Width                                    : 720 pixels
Height                                   : 480 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Variable
Frame rate                               : 23.976 FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Scan order                               : 2:3 Pulldown
Compression mode                         : Lossy
Bits/(Pixel*Frame)                       : 0.870
Time code of first frame                 : 00:59:59;00
Time code source                         : Group of pictures header
Stream size                              : 4.35 GiB (100%)
Language                                 : English
Default                                  : Yes
Forced                                   : No
Color range                              : Limited
Original source medium                   : DVD-Video

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00:00:00.000                             : :Chapter 01
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00:09:24.063                             : :Chapter 03
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01:18:48.056                             : :Chapter 19
01:19:58.827                             : :Chapter 20

[babygdav]

No, imo.
You could do a straight disc rip, or take the output of a disc mastering program like scenarist and they'd be identical.

[manono]

In your example, I believe it's straight from the DVD with no reencoding, if that's what you wanted to know. Progressive 23.976fps with 2:3 pulldown to output 29.97fps.

MediaInfo is better than whatever it was you showed at the beginning.

[aedipuss]

why? are you dmca enforcer? help? hell no.