The.Flash.S09.1080p.BluRay.AV1-PTNX

THE FLASH - Season 9

Total runtime: 9h 8m 50s - Total size: 5.1 GiB

VIDEO: AV1, 10 bit color
AUDIO: English 5.1 Opus @ 192 kbps
SUBS: English SRT (embedded)

After being struck by lightning, Barry Allen wakes up
from his coma to discover he's been given the power of
super speed, becoming the next Flash, fighting crime in
Central City.
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ENCODING PARAMS (AOMENC):
--cpu-used=4 --end-usage=q --tile-columns=1 --tile-rows=1
--bit-depth=10 --lag-in-frames=48 --threads=2
--enable-dist-wtd-comp=0 --enable-qm=1 --quant-b-adapt=3
--mv-cost-upd-freq=2 --enable-chroma-deltaq=1
--enable-fwd-kf=1

ENCODING PARAMS (AV1AN):
-p 2 --target_quality 94 --vmaf_plots --vmaf --probes 5
-a " -c:a libopus -b:a 192k -ac 6 " --min_q 15 --max_q 40
-xs 0 -ff " -vf crop=1920:960:0:60 " --vmaf_filter
crop=1920:960:0:60

target_quality may be increased and/or min_q lowered for
individual episodes and/or segments of episodes if an
encode done with these parameters fails to meet quality
requirements.
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All Paarthurnax torrents are encoded in the AV1 video and
Opus audio codecs. This is a modern codec that offers the
best possible compression at any given quality level. Not
all media players support this format. If in doubt: VLC!

AV1-encoded files are usually around 30% smaller than
HEVC x265, and 50% smaller than AVC x264, at the same
quality.

The table above shows quality at mean, 75th, 25th and 1st
percentiles of frames, using Netflix's VMAF perceived
quality algorithm. Improvement above 93 is considered
imperceptible for film contents. All of our torrents
target a mean VMAF around 94 and 25th percentile no lower
than 91. This can be done while maintaining as small of a
file size as possible by splitting the video and encoding
the segments at a quality that is perfectly optimized for
each individual segment.
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