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The SD x264 TV Releasing Standards 2012
+---[ INTRO ]---+
x264 has become the most advanced H264 video encoder over the past few
years. Compared to XviD, it is able to provide higher quality and
compression at greater SD resolutions. It also allows better control and
transparency over encoding settings. With CRF in the mix, we can also
ensure that a diverse array of material will get the most appropriate
bitrate for them and not arbitrarily fixed sizes. This standard aims to
bring quality control back to SD releases. There are many standalone
players/streamers such as TviX, Popcorn Hour, WDTV HD Media Player, Boxee,
Xtreamer, PS3, XBOX 360, iPad, and HDTVs that can playback H264 and AAC
encapsulated in MP4.
The SD x264 TV section was formed to separate releases from the ruleless
world of TV-XviD. This document will cover the rules and guidelines for
only SD resolution x264 television rips.
+---[ RELEASE RULES ]---+
Compliance with this document is optional as of its pre date, and
mandatory as of 2012-04-01 00:00 UTC.
- Sources requiring resize are to be cropped and resized using sharp
resizers such as Lanczos/Lanczos4, Spline36, or Blackman. Bicubic is
- If there is a question as to the validity of a source, the release
may be nuked source.sample.requested_reason.for.nuke (e.g.
source.sample.requested_suspicion.of.analog.source) within 24 hours of
pre. Approximate timestamps may be requested in the case that it would
assist in the verification that the source sample provided is the
source used for encode (e.g. The group has 24
hours from the nuke to pre a RARed SOURCE.SAMPLE that is at least 10
seconds in length in order to document that the source is valid.
Failure to provide source proof or providing bad source proof shall
result in the release remaining nuked, and it may then be propered.
- Improper IVTC methods that result in jerky playback, such as Force
Film, are banned
- Interlaced video sources must be deinterlaced with a smart deinterlacer
such as Yadif. FieldDeinterlace is banned.
- Group watermarks of any kind on the video are banned
- Intros, outros, betweenos, or any other form of defacement of the
episode are banned
- Native refers to the standard in which the video was produced (e.g.
NTSC or PAL). NTSC produced video is native to NTSC, PAL produced video
is native to PAL. PAL produced video that is broadcast in NTSC is
converted. NTSC produced video that is broadcast in PAL is converted.
- Converted video that has significant artifacting (e.g. blended frames)
and cannot be reversed to native must use CONVERT tag
- Converted video that does not have significant artifacts does not need
convert tags and may not be nuked for the conversion
- Native releases are allowed after those tagged CONVERT. Use NATIVE tag.
- Allowed audio formats are VBR AAC LC (Low Complexity).
- Average bitrate on AAC audio must be 96 - 160 kbps.
- AAC audio must be normalized and downconverted to stereo.
- Nero and Apple encoders are recommended. FFmpeg and FAAC are banned.
- Multiple language audio tracks are allowed and must be listed in NFO
- Severe audio drops resulting in one full missing word or otherwise the
inability to understand material dialogue is considered to be a
technical flaw and may be propered
- Audio that is 120ms or more out of sync or drifts more than 120ms
between any two points (e.g. needing -80 at one and +40 at another) is
considered to be technically flawed and may be propered
- Framerate must be constant. Variable framerate is banned.
- IVTC or deinterlacing must be applied as needed
- 50/60fps video may be released at 50/60fps or 25/30fps. Releasing true
25/30fps video at 50/60 is considered a technical flaw.
- In rare cases, 25/50Hz sources should be IVTCd to 24 or 30 fps.
- In rare cases, 30/60Hz sources should be IVTCd to 25fps.
Failure to apply IVTC when needed is a technical flaw.
- Video codec must be H264 encoded with 8-bit depth x264.
- You will have 30 days from latest x264 rev date to update in order to
maintain all bug fixes and improvements in the x264 encoder.
- Stripping or falsifying encode information in the file header is banned
- Custom Matrices are allowed
- Encoded colorspace must be 4:2:0 (default).
- Deblocking must be used; values are at the discretion of the group.
(default is enabled, 0:0 settings)
- No setting can go below what is specified by --preset slow.
- Keyframe interval (--keyint) must be at least 200 and at most 300. It
is recommended to be 10*framerate (film240, PAL250, NTSC300).
- Minkeyint must be 30 or less
- Colormatrix must be set to source specification. If not specified by
source, bt709 must be used for sources with resolution greater than or
equal to 1280x720 (e.g. HDTV and some PDTV) and sources with lower
resolutions use undef (default).
- Constant Rate Factor (--crf) must be as follows:
Compressibility CRF General Examples
High 19-20 Scripted, Talk Shows, Poker, Animation
Medium 21-22 Documentary, Reality, Variety
Low 23-24 Sports, Awards, Live Events, Competitive-
- x264 parameters shall not vary within a release
- Zones (--zones) are forbidden.
- Any deviation in CRF from given examples must be specifically justified
in the NFO. Use discretion when deviating CRF by matching the
compressibility of the show to a corresponding CRF value. CRF values
below 19 and above 24 are never permitted.
- As a general suggestion, average video bitrate in excess of 1500kb/s
is a sign that a higher CRF value should be chosen, when possible
- Allowed parameters for --tune (optional) are film/grain/animation
- Level 3.1 must be respected.
- Suggested command line:
x264.exe --crf ## --preset slow --level 3.1 --colormatrix bt709 -o
out.h264 in.avs
- Container must be MP4.
- MP4Box is the recommended muxer.
- Support for file streaming and playing from rars is strongly encouraged.
Both features are supported with MP4Box.
- Custom muxing tools are permitted; however, output must be compatible
with standard demuxers to the same extent that files created with
MP4Box are.
Source Naming:
- Valid source names are HDTV, AHDTV, PDTV, and DSR.
- WS and FS tags are banned.
- Source Definitons:
- 720p/1080i/1080p shall be tagged HDTV or AHDTV (depending on capture
method). In the case of upscaled content airing on HD channel, use
PDTV tag.
- 576i/576p shall be tagged PDTV.
- 480i shall be tagged DSR.
- HD video taken from the decoded HD output of a set-top box (e.g.
component, DVI, HDMI) must be tagged in dirname as AHDTV. Decoded
output of PDTV or DSR sources is banned. Releases taken from a natively
recorded transport stream shall be tagged as HDTV, PDTV, or DSR.
- AHDTV captures must be done at the native format of the channel, e.g.
720p or 1080i.
- HDTV and PDTV sources with greater than 720px horizontal resolution
must be cropped as needed and resized to 720px width and mod2 height to
maintain proper AR.
- PDTV sources with horizontal source resolution of 720-704px after crop
must be cropped as needed and only height shall be resized to maintain
proper AR using mod2. Upscaling/downscaling width is forbidden.
- PDTV sources with horizontal source resolution of less than 704px after
crop must be cropped as needed and resized to fit within 704x528 while
maintaining the proper AR using mod2. Largest possible resolution must
be used without upscaling in more than one dimension.
- DSR and any fullscreen source with greater than or equal to 640px
horizontal resolution after crop must be cropped as needed and resized
to 640px width and mod2 height to maintain proper AR.
- DSR sources with less than 640px horizontal resolution after crop must
be cropped as needed and resized to fit within 640x480 while maintaining
the proper AR using mod2. Largest possible resolution must be used
without upscaling in more than one dimension.
- When cropping, remove everything that is not actual picture, including
black or other colored borders, duplicate lines, and full-time tickers.
Removing or retaining fading edges is at cappers discretion and shall
not be considered undercropped or overcropped.
- In the case of varying crops, crop to the most common frame size (e.g.
pitch/primary view in sports).
- Actual picture area may be over- or under-cropped by 1px maximum per
side. More than 1px on any side is considered a technical flaw.
- Encoded Video resolution must be within 2 of the original aspect ratio
To calculate AR error (): (Original AR - Release AR)/Original AR * 100
OAR (SourceWidth-CropLeft-CropRight)/(SourceHeight-CropTop-CropBottom)
Release AR EncodedWidth / EncodedHeight
- Optional, but encouraged
- Text based format is preferred (e.g. SubRip, SubStation Alpha, etc).
- Subtitles must be muxed into the MP4. Subs directories are forbidden.
- Burned subtitles will only be allowed when the source exhibits such
subtitles in the picture itself
- Subtitles cannot be used as a basis for a dupe
- Group marks in subtitles are banned
- Releases must be packed in RAR file format.
- Rars may be in 15, 20, or multiples of 50 MB. 15 and 20 MB sizes must
contain 1-101 files. Multiples of 50 MB must contain 10-101 files.
1MB 1,000,000 bytes.
- Multi-episode releases with no clear delineation such as credits must
not be split
- RAR compression must not be used
- Recovery and MD5 record are optional
- Encryption or password protection is forbidden
- Must have SFV and NFO
- RAR, SFV, and sample files must have unique, lowercase filenames with
the group tag.
- Missing SFV or RAR(s) on all sites is considered a technical flaw.
Corrupt RARs (errors on extraction) are considered technical flaws.
SFVFix and RARFix are not permitted. Uploading a missing SFV or RAR to
all presites after pre is not permitted. Release REPACK.
Credits/Previously On:
- Previously on footage is optional, but suggested to be included
- Full end credits must be included if they contain show content or
outtakes/bloopers. End credits are optional and suggested if they are
clean, and purely optional in other cases.
- Required
- 50-70 seconds in length and in a separate folder marked as Sample
- Must be taken from the episode, not encoded separately
- Stream samples are recommended for any questionable issue with the
source, e.g. no IVTC possible
- Propers are only permitted in the case of a technical flaw in the
original release (e.g. Bad IVTC, Interlacing, missing footage, bad crop,
commercials, bad x264 settings used, bad source, etc.)
- Scrolling or other alert messages added by a station (e.g. weather,
Amber alerts) must be at least 30 seconds in length in order to
- Drops with missing footage but no missing dialog must be at least 2
seconds long in any one instance to be considered a technical flaw
- Proper reason must be clearly stated in nfo, including timecodes and
extent of the flaw when appropriate
- Sample of propered release is encouraged
- Qualitative propers are not allowed
- Flaws (such as drops) present in any optional content are not a flaw
and shall not be nuked or propered.
- Propers based upon the rules set forth here are allowed only on
releases that come after this document goes into effect
- Internals are allowed to be pred for any reason, including releases
with technical flaws or those done with alternate codecs, containers,
or settings for experimental purposes
- Any severe technical flaws or deviations must be mentioned in the NFO
- With the exception of the following rule, internal releases may only be
nuked for severe technical flaws or deviations that are not mentioned
in the NFO
- Using DIRFIX.iNTERNAL to avoid a dupe nuke is banned, and such
dirfixes shall be nuked fix.for.nuke
Directory Naming:
- Show.Name.SXXEXX.Episode.Title.HDTV.x264-GROUP
- Show.Name.YYYY.MM.DD.Guest.Name.HDTV.x264-GROUP for daily or other
dated shows
- Episode title and guest name are optional
- Show.Name.PartXX.HDTV.x264-GROUP for miniseries
- ALL others are FORBIDDEN. (e.g 0x00 000 EXX.EP.TITLE PART.VI)
- Competition.YYYY-MM.Event.EXTRA.TAGS.HDTV.x264-GROUP
Using just the year is only permitted if the event is once per year
(e.g. a WWE PPV). In the case of leagues which have seasons that span
multiple years, it is permissible to tag the release with just the years
of the season. Inclusion of MM and DD is mandatory for all constantly
running shows (e.g. WWE).
If there is no league, the sport needs to be used instead
The following are some examples of correct directory names:
- EPL.2010.01.01.Manchester.United.vs.Arsenal.HDTV.x264-GROUP
- TNA.Impact.2010.03.02.HDTV.x264-GROUP
- WWE.WrestleMania.2010.PPV.HDTV.x264-GROUP
- Tennis.US.Open.2011.Final.Player1.vs.Player2.HDTV.x264-GROUP
- Different shows that have the same title in different countries (e.g.
The Marriage Ref) must have the ISO 3166-1 alpha 2 country code in the
directory name, except for UK shows (e.g. The.Marriage.Ref.UK not
The.Marriage.Ref.GB). ISO country code is not needed for the original
show (e.g. The.Marriage.Ref.US is forbidden).
- Different shows with the same name in the same country produced in
different years must have the year of the first season in the directory
name, e.g. Human.Target.2010 and Doctor.Who.2005. Year is not needed
for the first show with a particular name.
- Channel name (e.g. National.Geographic, History.Channel) shall not be
tagged on any normal series starting after this rulesets effective
date. Miniseries and single-episode docus may optionally be tagged with
the channel name.
- The use of audio format tags such as AAC, and AAC.x.x is FORBIDDEN
- READ.NFO tag is allowed; however, discretion is recommended
- PROPER.READ.NFO is NOT allowed. The NFO is REQUIRED to have a reason;
therefore, the tag is redundant.
- All repacks and rerips must include detailed reason as to why its
being repacked or reripped in the nfo.
- Other permitted tags are: PROPER, REPACK, RERIP, REAL, UNCUT, DUBBED,
- Acceptable characters in naming a directory include (NO spaces or
double dots - single dots ONLY):
Releases must be nuked for any of the following reasons:
- Any valid proper listed in the propers section
- Missing nfo, or missing Sample
- Invalid directory naming format
- Mislabeled directory that could prevent finding the release in a
dupecheck, including incorrect season/episode/date or incorrect title
- Dupe
- Releases may not be propered for bad tagging or missing nfo/sample
- The following fixes are allowed: NFOFIX, SAMPLEFIX, DIRFIX, SYNCFIX,
- DIRFIX requires NFO and NFO must state which release is being fixed
- The original release shall be unnuked when a valid fix is released
- A proper may not be released for an issue that was fixed, unless the
fix does not completely correct the issue
The SD x264 TV Releasing Standards 2012 (2012-04-01)
+--------[ GROUPS ]--------+
TVx2642012 rules created by the following groups:
+----\ Thanks to the x264 developers for their /----+
+----\ assistance in determining the best /----+
+----\ mix of encode settings. /----+
Download nfoThe.SD.x264.TV.Release.Standards.2012.Update.1-SDx264.nfo
Download NoticeThe.SD.x264.TV.Release.Standards.2012.Update.1-SDx264.rar

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