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Progressive total frame output doubles in preview - Printable Version

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Progressive total frame output doubles in preview - lostsnowboardvideos - 08.12.2024

Back again...

Total frames for a progressive scan blu ray keeps doubling. vpy preview total frames shows double of what the output is. 

Video sample input: https://drive.google.com/drive/folders/17A173fHS4L1h-WL05dPgvpucnXtuKKuP?usp=drive_link

Debug output is attached.

RE: Progressive total frame output doubles in preview - Selur - 08.12.2024

Will look at it later, sounds like a progressive source got Bob deinterlaced.

RE: Progressive total frame output doubles in preview - Selur - 08.12.2024

Looking at the input:
Video
ID                                       : 1
ID in the original source medium         : 4113 (0x1011)
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : High@L4.1
Format settings                          : Frame doubling / CABAC / 3 Ref Frames
Format settings, CABAC                   : Yes
Format settings, Reference frames        : 3 frames
Frame mode                               : Frame doubling
Format settings, Slice count             : 4 slices per frame
Codec ID                                 : V_MPEG4/ISO/AVC
Duration                                 : 1 min 6 s
Bit rate mode                            : Variable
Bit rate                                 : 22.1 Mb/s
Maximum bit rate                         : 35.0 Mb/s
Width                                    : 1 280 pixels
Height                                   : 720 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Variable
Frame rate                               : 29.970 (29970/1000) FPS
Original frame rate                      : 29.970 (30000/1001) FPS
Standard                                 : NTSC
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Bits/(Pixel*Frame)                       : 0.801
Stream size                              : 175 MiB (93%)
Language                                 : English
Default                                  : No
Forced                                   : No
Color range                              : Limited
Color primaries                          : BT.709
Transfer characteristics                 : BT.709
Matrix coefficients                      : BT.709
Original source medium                   : Blu-ray

Quote:Frame doubling
=> all frames should be duplicated,..
first time me seeing this 'in the wild' Smile (there should also be frame tripling iirc.)
FFMS2 or Bestsource will ignore this and just output 1988 frames.

x264 can create such streams with '--pulldown double' (I doubt this is really 'legal' for Blu-Rays)
--pulldown <string>     Use soft pulldown to change frame rate
                                  - none, 22, 32, 64, double, triple, euro (requires cfr input)
I have seen a '--pulldown 32' aka. '(soft) telecine'. Smile

Cu Selur

RE: Progressive total frame output doubles in preview - lostsnowboardvideos - 09.12.2024

Bestsource worked! Should have tried that before posting because that's worked in the past but haven't seen this specific problem before. Thanks!