[Cin] Fwd: Can someone check DV-AVI (type 2) profiles I try to create with real interlaced project?

[Andrew Randrianasulu]

I actually read some documentation, it says DV (usual Standard Resolution, at least) uses bottom field first:

https://www.provideocoalition.com/field_order/
https://forums.creativecow.net/docs/forums/post.php?forumid=8&postid=566441&univpostid=566441&pview=t&archive=T

so, I put top=0 options in my profiles, they still render.

but for HD DV story will be different:
https://trac.ffmpeg.org/ticket/5092

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The field order (i.e. topfield first) is wrong for DV HD video. It's actually due to a stupid change they made to the spec. The bits in the VAUX are the same but their meaning changed. In SMPTE 314M, which is for SD, field 2 refers to the even fields and field 1 refers the odd fields. But in SMPTE 370M, which is for HD, field 1 refers to the even fields and field 2 refers to the odd fields. So if the FS bit in the VAUX is 1 it means BFF in SD but TFF in HD. 
 
 So we need a line in the code to flip the TFF flag if the file is HD. (the current code parses it according to the SMPTE 314M spec regardless of resolution)
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I have no idea what will happen if you try to fix two or more sources with different field order ..

----------  Пересланное сообщение  ----------

Тема: Can someone check DV-AVI (type 2) profiles I try to create with real interlaced project?
Дата: Понедельник 21 октября 2019
Отправитель: Andrew Randrianasulu <randrianasulu at gmail.com>
Получатель:  "Cinelerra.GG" <cin at lists.cinelerra-gg.org>

I was trying to convince CinGG to make AVI DV (type 2, with separate audio, 48Khz/stereo/16 bit) 
I can use in older versions of Cin or for testing Kino.

I think I'm closer to this goal, but I tried to make my dv files out of progressive content. 
real interlaced source/project probably will require  "flags=+ildct+ilme" ? And probably field order ....

Attached are my attemts, put avi_pcm_s16.avi in /usr/share/cin/ffmpeg/audio (or where your Cin installation put those profiles)
and dv_pal.avi/dv_ntsc.avi in /usr/share/cin/ffmpeg/video

Kino was segfaulting if I tried to use 422p (DVCPRO ? ) pixel format at encoding. 411p/420p still works ....

Also, theora avi opt file just for lulz.


-------------------------------------------------------
-------------- next part --------------
avi dvvideo
pix_fmt yuv411p
top=0
# 720x480, 29.97 fps

-------------- next part --------------
avi dvvideo
pix_fmt yuv420p
top=0
# 720x576, 25 fps
-------------- next part --------------
mov dvvideo
pix_fmt yuv420p
top=0
# 720x576, 25 fps