1080i 25fps to Blu Ray 25GB with x264, problems getting correct output

[poisondeathray]

You can preview in encore as well (since you're using that for authoring)

I demuxed your sample and it imported correctly (don't transcode - so no re-encoding), chroma is fine . It knows to upsample as interlaced because this is mbaff encoding, and it's flagged in the stream .

The problem is limited to vdub's handling of interlaced YV12 (it's well documented, and technically, it's not "wrong", but it's not "right" either...anyways....)

(But normally you would use raw h.264 only, never in a container before authoring)

[Killer3737]

Yeah that's fine thanks, I was only using VDub as I thought it was the best tool to get proper screenshots rather than using a media player. I didn't know about the issues you've brought up, so thanks again.

The BR has now been authored (with raw .264 and .ac3 as input of course) and i'm very happy with the output.

[nateo200]

Is there any reason why you would want to keep it in interlaced format? Why not output it at 23~Gigs in H.264 with heavy deinterlacing? I always had bad luck with deinterlacing but I jacked up the setting on Handbrake and have thus not had much trouble lately. Maybe I'm just anti interlacing ....

[poisondeathray]

Is there any reason why you would want to keep it in interlaced format? Why not output it at 23~Gigs in H.264 with heavy deinterlacing? I always had bad luck with deinterlacing but I jacked up the setting on Handbrake and have thus not had much trouble lately. Maybe I'm just anti interlacing ....

Because blu-ray doesn't support 1080p59.94, at least not until v2.0 comes out . So you would have to bob deinterlace and scale to 720p59.94 for BD compatibility . BD/HDTV handles 1080i59.94 content fine, it bob deinterlaces on the fly

[Killer3737]

Exactly. There is a way to supposedly get 1080p25 on Blu Ray with 'fake interlaced' but I didn't want to mess around with that:

NB: the following two streams are encoded using fake-interlaced mode. This allows the stream to be encoded progressively yet flagged as interlaced.


1080p25

x264 --bitrate
XXXXX --preset veryslow --tune film --bluray-compat --vbv-maxrate 40000 --vbv-bufsize 30000 --level 4.1 --keyint 25 --open-gop --slices 4 --fake-interlaced
--colorprim "bt709" --transfer "bt709" --colormatrix "bt709" --sar 1:1 --pass 1 -o out.264 input.file