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<div class="moz-cite-prefix">Den 30.05.2023 11:21, skrev Andrew
Randrianasulu:<br>
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cite="mid:CA+rFky5pgOjjocO2VvF_UygKuAzq7drUXkwCK1ABf0brekfzUQ@mail.gmail.com">
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<div dir="auto"><font face="arial, helvetica, sans-serif">...snip</font></div>
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cite="mid:CA+rFky5pgOjjocO2VvF_UygKuAzq7drUXkwCK1ABf0brekfzUQ@mail.gmail.com">
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<br>
<font face="arial, helvetica, sans-serif">Also,
there was another page suggesting yuv420 option
useful for *NTSC* interlaced DV to DVD</font><br>
<br>
<font face="arial, helvetica, sans-serif"><a
href="https://renomath.org/video/linux/dv/encdvd.html"
rel="noreferrer noreferrer noreferrer"
target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">https://renomath.org/video/linux/dv/encdvd.html</a><br>
</font><br>
====<br>
Our focus is encoding widescreen NTSC interlaced
video source from a miniDV camcorder. We attempt
to preserve as much of the quality of the original
source as
possible. <br>
<br>
[..]<br>
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<br>
Yes, Eric Ohlson has beside this "DVD compliant mpeg2 on Linux",
some other related howtoes worth to mentione at the same time. <br>
To notice is to try to capture most possible colors 422 out of the
camera sources (refere to our previous posts about A/D and HDMI-USB3
capture cards) <br>
<br>
Hi8 Tape to DVD Video Workflow<br>
<i>If you have a faster system you may want to consider capturing
using the DV50 codec using a 4:2:2 color space. In order to do
this, libng from the xawtv project needs to be patched to
recognize the dv50 codec.</i><br>
<a class="moz-txt-link-freetext" href="https://renomath.org/video/linux/hi8/">https://renomath.org/video/linux/hi8/</a><br>
<br>
HDV to DVD in Linux<br>
<a class="moz-txt-link-freetext" href="https://renomath.org/video/linux/downres/">https://renomath.org/video/linux/downres/</a><br>
<br>
HDV to High Definition DVD Workflow with Linux<br>
<a class="moz-txt-link-freetext" href="https://renomath.org/video/linux/hddvd/">https://renomath.org/video/linux/hddvd/</a><br>
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cite="mid:CA+rFky5pgOjjocO2VvF_UygKuAzq7drUXkwCK1ABf0brekfzUQ@mail.gmail.com">
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<h2>Mjpegtools</h2>
The mjpegtools encoder runs more slowly than ffmpeg
on my computer;
however, no patches are needed to handle interlaced
video.
The encoding commands
<pre>$ lav2yuv s001.avi |
yuvcorrect -T INTERLACED_BOTTOM_FIRST |
mpeg2enc -M0 -nn -a3 -f8 -G18 -b7000 -V230 -q9 -o s001.m2v
$ lav2wav s001.avi > s001.wav
$ toolame -b224 -s48 s001.wav s001.m2a
$ mplex -f8 s001.m2v s001.m2a -o s001.mpg
</pre>
work, but unfortunately reduce the effective color
space to 4:1:0.
Better results can be obtained by using y4mscaler
and the commands
<pre>$ lav2yuv s001.avi -C 411 |
y4mscaler -I ilace=BOTTOM_FIRST -O chromass=420mpeg2 |
mpeg2enc -M0 -nn -a3 -f8 -G18 -b7000 -V230 -q9 -o s001.m2v
$ lav2wav s001.avi > s001.wav
$ toolame -b224 -s48 s001.wav s001.m2a
$ mplex -f8 s001.m2v s001.m2a -o s001.mpg
</pre>
This interpolates the chroma in the horizontal
direction
before subsampling it vertically. <br>
<br>
====<br>
<br>
Yet another source suggest only old CRT TV <br>
can display interlaced DVD material as intended, and
Plasma/TFT<br>
TV or computer monitors better accept de-interlaced
material.<br>
<br>
<a
href="https://xpt.sourceforge.net/techdocs/media/video/dvdvcd/dv04-Interlace/single/"
moz-do-not-send="true"
class="moz-txt-link-freetext">https://xpt.sourceforge.net/techdocs/media/video/dvdvcd/dv04-Interlace/single/</a><br>
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