hatt / yatta Goto Github PK

Add a feature to allow for zooming out in YMC dialogs, this would be especially useful for cutter.

Can overlap ranges in cutter, probably breaks trims or something.

Add config dialog for decimation like TFM and telecide.

Log original decimation decisions to project file like is done with field matching.

D2V files run with ignore pulldown (Field_Operations=1 set in the d2v header) will not soft-telecine repeat field flagged progressive content. This let's YMC to ignore IVTC matches on these frames and force set them to c matches and nodecimate, allowing YATTA to leave them alone. This is not actually VFR as the content is still 24000/1001fps; the same as telecined content will be after IVTC.

The detection process here is first to check the Field_Operations flag for ignore pulldown, then to parse the d2v flags for each I-frame group and check for the progressive flag, not RFF. The RFF flag does not seem to hit every progressive frame, for reasons I assume are related to how d2v files expect frame pairs to be handled I expect. Rather than run binary math here, the easiest thing I believe is to compile a TStringList of hex pairs that have the progressive bit set and just compare against them.

This relies on TIVTC/Decomb not breaking on progressive content but I see no reason why they should. Additionally, YATTA needs to be aware that these sections are not 30000/1001fps so that it doesn't mess up timecodes when saving. This is more complicated and I'm not too sure how to do it, especially on content which DOES have actual VFR in it alongside the soft telecined progressive.

Add a general decoder flag in the project file and remove Mpeg2Decoder. This should allow for simplified adding of source options. Additionally, parse the first line of d2v and dgi files to determine which decoder they use and auto-decide on it. Mpeg2Dec3 for example uses DVD2AVIProjectFile in the header string while DGDecode uses DGIndexProjectFile. This can get rid of useless space on the YMC dialog box, and make it easier to get going with random decoders.