[Cin] Report guessed / detected SAR/DAR values

[Andrea paz]

I created a bd.m2ts file by putting "HDV 1080i/25" as the preset.
Bd-render worked until the renderig was complete then CinGG shut down
(I don't have a BD-burner). Doing ffprobe on this video I get:

Input #0, mpegts, from 'bd.m2ts':
  Duration: 00:01:06.91, start: 0.074667, bitrate: 10242 kb/s
  Program 1
  Stream #0:0[0x1011]: Video: h264 (High) ([27][0][0][0] / 0x001B),
yuv420p(tv, bt709, top first), 1440x1080 [SAR 1:1 DAR 4:3], 25 fps, 25
tbr, 90k tbn
  Stream #0:1[0x1100](ita): Audio: ac3 (AC-3 / 0x332D4341), 48000 Hz,
stereo, fltp, 192 kb/s

The video is slightly stretched and reduced to 4:3 from the original
16:9. By applying the downsample filter and setting H and V to 40 the
pixels become clearly visible and can be seen to be square.(cfr
http://www.g-raffa.eu/Cinelerra/HOWTO/anamorphic.html)

In postimage, I have uploaded several screenshots showing the
"info--details" of the three original sources that make up the video,
of the bd.m2ts (hdv.jpeg) file, and also of how the "set format" is
automatically set.
[@Andrew, is it possible to put PAR and DAR in the Set Format window
as shown in the image?]

Note: If I force, in Set Format, the aspect ratio (DAR) to 16:9 I get,
with the downsample filter, rectangular pixels. But the video is no
longer deformed....

The patch seems to work, as "guessed SAR/DAR" and "detected SAR/DAR"
appear, but only in source1. In source2 (which is a 4k) there are
neither, and in source3 and hdv.jpeg there is only "guessed SAR/DAR".

The other 3 patches also seem to work since rendering bd.m2ts worked.

https://postimg.cc/kDNqfpT0
https://postimg.cc/SJyq5f5J
https://postimg.cc/VdD1cbQ4
https://postimg.cc/ctWZdRLk
https://postimg.cc/tnzbJs1q