[HELP] m2ts file - with baked in interlacing

[Miranda]

The Blu-ray file shows as "progressive" when imported.

I have tried overwriting to numerous interlaced/mixed options with various de-interlacing settings but none seem to be able to remove the interlacing, which usually appears on scenes with faster motion.  Any suggestions?

[Selur]

File is detected as progressive since MediaInfo reports:

File extension : mts Format : BDAV Format : BDAV Format/Info : Blu-ray Video Format/Extensions usually used : m2ts mts ssif Commercial name : BDAV File size : 239788032 File size : 229 MiB File size : 229 MiB File size : 229 MiB File size : 229 MiB File size : 228.7 MiB Duration : 65986.996296 Duration : 1 min 5 s Duration : 1 min 5 s 987 ms Duration : 1 min 5 s Duration : 00:01:05.987 Duration : 00:01:05;18 Duration : 00:01:05.987 (00:01:05;18) Overall bit rate mode : VBR Overall bit rate mode : Variable Overall bit rate : 29070269 Overall bit rate : 29.1 Mb/s Maximum Overall bit rate : 48000000 Maximum Overall bit rate : 48.0 Mb/s Frame rate : 23.976 Frame rate : 23.976 FPS Frame count : 1576 Stream size : 10463139 Stream size : 9.98 MiB (4%) Stream size : 10 MiB Stream size : 10.0 MiB Stream size : 9.98 MiB Stream size : 9.978 MiB Stream size : 9.98 MiB (4%) Proportion of this stream : 0.04363 File creation date : UTC 2022-07-28 13:17:05.506 File creation date (local) : 2022-07-28 15:17:05.506 File last modification date : UTC 2022-07-28 13:17:26.918 File last modification date (local) : 2022-07-28 15:17:26.918 OverallBitRate_Precision_Min : 29070048 OverallBitRate_Precision_Max : 29070489 Video Count : 382 Count of stream of this kind : 1 Kind of stream : Video Kind of stream : Video Stream identifier : 0 StreamOrder : 0-0 ID : 4113 ID : 4113 (0x1011) Menu ID : 1 Menu ID : 1 (0x1) Format : AVC Format : AVC Format/Info : Advanced Video Codec Format/Url : http://developers.videolan.org/x264.html Commercial name : AVC Format profile : High@L4.1 Format settings : CABAC / 2 Ref Frames Format settings, CABAC : Yes Format settings, CABAC : Yes Format settings, Reference frames : 2 Format settings, Reference frames : 2 frames Format settings, GOP : M=1, N=5 Internet media type : video/H264 Codec ID : 27 Duration : 65732 Duration : 1 min 5 s Duration : 1 min 5 s 732 ms Duration : 1 min 5 s Duration : 00:01:05.732 Duration : 00:01:05;18 Duration : 00:01:05.732 (00:01:05;18) Bit rate mode : VBR Bit rate mode : Variable Bit rate : 27718226 Bit rate : 27.7 Mb/s Maximum bit rate : 32178176 Maximum bit rate : 32.2 Mb/s Width : 1920 Width : 1 920 pixels Height : 1080 Height : 1 080 pixels Stored_Height : 1088 Sampled_Width : 1920 Sampled_Height : 1080 Pixel aspect ratio : 1.000 Display aspect ratio : 1.778 Display aspect ratio : 16:9 Frame rate : 23.976 Frame rate : 23.976 (24000/1001) FPS FrameRate_Num : 24000 FrameRate_Den : 1001 Frame count : 1576 Color space : YUV Chroma subsampling : 4:2:0 Chroma subsampling : 4:2:0 Bit depth : 8 Bit depth : 8 bits Scan type : Progressive Scan type : Progressive Bits/(Pixel*Frame) : 0.558 Delay : 541.711111 Delay : 542 ms Delay : 542 ms Delay : 542 ms Delay : 00:00:00.542 Delay : 00:00:00;13 Delay : 00:00:00.542 (00:00:00;13) Delay, origin : Container Delay, origin : Container Stream size : 227748189 Stream size : 217 MiB (95%) Stream size : 217 MiB Stream size : 217 MiB Stream size : 217 MiB Stream size : 217.2 MiB Stream size : 217 MiB (95%) Proportion of this stream : 0.94979 Buffer size : 29655040 format_identifier : HDMV

and that's correct. That file is progressive.

The lines you see are there because someone messed up when converting an interlaced source to progressive.
So my guess atm. is that someone hat a low res version like 640x360 interlaced source and then resized the video to 1920x1080 without taking into account that the source is interlaced. The only way to get something somehow usable from this is to undo part of the resizing.

Try the following to get some somewhat HD resolution content:

• load source
  
• enabled "Crop/Resize->Base->Picture Crop"
  
• set "Crop/Resize->Base->Picture Crop" left: 226, right: 230.
  
• enabled "Crop/Resize->Base->Resize"
  
• enable "Filtering->Vapoursynth->Misc->Script->Lower res. before resize"
  
• enable "Filtering->Vapoursynth->Misc->Script->Lower res. before resize->height"
  
• set "Filtering->Vapoursynth->Misc->Script->Factor" to 3 or 4.
  

check the Vapoursynth Preview to see what that did.
Personally I would also enable 'Filtering->Vapoursynth->DeNoise->KillerSpots'.
Setting NNEDI3 or a similar super resolution resizer under "Filtering->Vapoursynth->Frame->Resize->Resizer" might help a bit, but the fact is whoever did the conversion from low resolution interlaced to full hd should not have got paid for the job.

Cu Selur

[Miranda]

Many thanks, that works very well. What part of it removed the interlace jaggies?

[Selur]

The downscaling the source by a factor of 3 or 4 and upscaling it back, so basically throwing away most of the horizontal information. (but looking at the source the isn't much detail te begin with, so not much loss)

[Miranda]

Thanks, that's much appreciated.

[Miranda]

Has this changed in the latest versions? 

All I see is "lower res. before de-interlace" and not "Lower res. before resize"

I have a 1920 x 1080 file with baked-in interlacing

[*]enable "Filtering->Vapoursynth->Misc->Script->Lower res. before resize"

[*]enable "Filtering->Vapoursynth->Misc->Script->Lower res. before resize->height"

[*]set "Filtering->Vapoursynth->Misc->Script->Factor" to 3 or 4.

[Selur]

I moved the option to the "Vapoursynth->Frame->Resize" -tab.

Cu Selur