hi everyone,
i'm a newbie in the conversion world and i'm trying to convert all my media library in x265. i'm also trying to "do it my way" by figuring out what parameters i should change by trying over and over.
i'm trying to get a results that can be compared to this one:
---------------------------------------------------------------------------------------
Format : Matroska
Format version : Version 4 / Version 2
File size : 3.82 GiB
Duration : 1 h 41 min
Overall bit rate : 5 383 kb/s
Writing application : mkvmerge v7.3.0 ('Nouages') 64bit
Writing library : libebml v1.3.0 + libmatroska v1.4.1
Video
ID : 1
Format : HEVC
Format/Info : High Efficiency Video Coding
Format profile : Main@L4@Main
Codec ID : V_MPEGH/ISO/HEVC
Duration : 1 h 41 min
Bit rate : 4 101 kb/s
Width : 1 920 pixels
Height : 800 pixels
Display aspect ratio : 2.40:1
Frame rate mode : Constant
Frame rate : 23.976 (24000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Bits/(Pixel*Frame) : 0.111
Stream size : 2.91 GiB (76%)
Writing library : x265 1.4:[Mac OS X][clang 6.0.0][64 bit]
Encoding settings : wpp / ctu=64 / tu-intra-depth=1 / tu-inter-depth=1 / me=3 / subme=3 / merange=57 / rect / no-amp / max-merge=3 / temporal-mvp / no-early-skip / no-fast-cbf / rdpenalty=0 / no-tskip / no-tskip-fast / strong-intra-smoothing / no-lossless / no-cu-lossless / no-constrained-intra / no-fast-intra / open-gop / interlace=0 / keyint=240 / min-keyint=24 / scenecut=40 / rc-lookahead=25 / bframes=4 / bframe-bias=0 / b-adapt=2 / ref=3 / weightp / no-weightb / aq-mode=2 / aq-strength=1.00 / cbqpoffs=0 / crqpoffs=0 / rd=4 / psy-rd=0.00 / psy-rdoq=0.00 / signhide / lft / sao / no-sao-non-deblock / b-pyramid / cutree / rc=2 / pass / bitrate=4100 / ratetol=1.0 / qcomp=0.60 / qpmin=0 / qpmax=51 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / ipratio=1.40 / pbratio=1.30
Language : English
Default : Yes
Forced : No
Color range : Limited
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709
----------------------------------------------------------------
these are the "specs" i would like to simulate or "beat". the size goal is like 3/5Gb per movie
i attached all my test video "specs" and the link to it with also the original source.
can you give me a personal opinion/critic on my test convertion? like if it's worse/better/comparable to the one above and give me a grade from 1 to 10 please?
and also, if you have any kind of suggestion please tell me
thanks a lot
ORIGINAL FILE: https://mega.nz/#!laYWEY7L!KXh8kbJrrezX2Z5WjMrFIWdTwleZqivky_QJ_rEnKrM
Format : Matroska
Format version : Version 2
File size : 107 MiB
Duration : 30 s 30 ms
Overall bit rate mode : Variable
Overall bit rate : 29.9 Mb/s
Encoded date : UTC 2016-02-06 04:00:53
Writing application : mkvmerge v4.7.0 ('Just Like You Imagined') built on Apr 21 2011 01:13:14
Writing library : libebml v1.2.0 + libmatroska v1.1.0
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.1
Format settings, CABAC : Yes
Format settings, RefFrames : 3 frames
Codec ID : V_MPEG4/ISO/AVC
Duration : 30 s 30 ms
Bit rate mode : Variable
Bit rate : 29.3 Mb/s
Maximum bit rate : 30.0 Mb/s
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 29.970 (30000/1001) FPS
Standard : NTSC
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.471
Stream size : 105 MiB (98%)
Language : English
Default : Yes
Forced : No
Color range : Limited
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709
CONVERTED: https://mega.nz/#!QDoCCCbI!imO8Rn6FFe9BlD9_mRujVANeo6pac6avfN2lCsda2Ys
Format : Matroska
Format version : Version 4 / Version 2
File size : 21.1 MiB
Duration : 30 s 30 ms
Overall bit rate : 5 880 kb/s
Encoded date : UTC 2017-08-30 21:00:17
Writing application : mkvmerge v13.0.0 ('The Juggler') 64bit
Writing library : libebml v1.3.4 + libmatroska v1.4.5
Writing frontend : StaxRip v1.6.0.0
Video
ID : 1
Format : HEVC
Format/Info : High Efficiency Video Coding
Format profile : Main@L4@Main
Codec ID : V_MPEGH/ISO/HEVC
Duration : 30 s 30 ms
Bit rate : 5 876 kb/s
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 29.970 (30000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Bits/(Pixel*Frame) : 0.095
Stream size : 21.0 MiB (100%)
Writing library : x265 2.5+6-d11482e5fedb:[Windows][GCC 7.1.0][64 bit] 8bit+10bit+12bit
Encoding settings : cpuid=1173503 / frame-threads=2 / numa-pools=4 / wpp / no-pmode / no-pme / no-psnr / no-ssim / log-level=2 / input-csp=1 / input-res=1920x1080 / interlace=0 / total-frames=900 / level-idc=0 / high-tier=1 / uhd-bd=0 / ref=2 / no-allow-non-conformance / no-repeat-headers / annexb / no-aud / no-hrd / info / hash=0 / no-temporal-layers / open-gop / min-keyint=25 / keyint=250 / bframes=4 / b-adapt=0 / b-pyramid / bframe-bias=0 / rc-lookahead=15 / lookahead-slices=6 / scenecut=40 / no-intra-refresh / ctu=64 / min-cu-size=8 / no-rect / no-amp / max-tu-size=32 / tu-inter-depth=1 / tu-intra-depth=1 / limit-tu=0 / rdoq-level=0 / dynamic-rd=0.00 / no-ssim-rd / signhide / no-tskip / nr-intra=0 / nr-inter=0 / no-constrained-intra / strong-intra-smoothing / max-merge=2 / limit-refs=3 / no-limit-modes / me=1 / subme=2 / merange=57 / temporal-mvp / weightp / no-weightb / no-analyze-src-pics / deblock=0:0 / sao / no-sao-non-deblock / rd=2 / early-skip / rskip / fast-intra / no-tskip-fast / no-cu-lossless / no-b-intra / rdpenalty=0 / psy-rd=2.00 / psy-rdoq=0.00 / no-rd-refine / analysis-reuse-mode=0 / no-lossless / cbqpoffs=0 / crqpoffs=0 / rc=abr / bitrate=6000 / qcomp=0.60 / qpstep=4 / stats-write=0 / stats-read=2 / cplxblur=20.0 / qblur=0.5 / ipratio=1.40 / pbratio=1.30 / aq-mode=1 / aq-strength=1.00 / cutree / zone-count=0 / no-strict-cbr / qg-size=32 / no-rc-grain / qpmax=69 / qpmin=0 / no-const-vbv / sar=0 / overscan=0 / videoformat=5 / range=0 / colorprim=2 / transfer=2 / colormatrix=2 / chromaloc=0 / display-window=0 / max-cll=0,0 / min-luma=0 / max-luma=255 / log2-max-poc-lsb=8 / vui-timing-info / vui-hrd-info / slices=1 / opt-qp-pps / opt-ref-list-length-pps / no-multi-pass-opt-rps / scenecut-bias=0.05 / no-opt-cu-delta-qp / no-aq-motion / no-hdr / no-hdr-opt / no-dhdr10-opt / analysis-reuse-level=5 / scale-factor=0 / refine-intra=0 / refine-inter=0 / refine-mv=0 / no-limit-sao / ctu-info=0
Default : Yes
Forced : No
Try StreamFab Downloader and download from Netflix, Amazon, Youtube! Or Try DVDFab and copy Blu-rays! or rip iTunes movies!
+ Reply to Thread
Results 1 to 13 of 13
Thread
-
Last edited by nikkikushin; 31st Aug 2017 at 07:51.
-
-
Every conversion to a lossy format will reduce the quality further. HEVC (the format produced by the x265 encoder) is not "less lossy" than other formats; the encoder only takes a lot more efforts to try to make the loss look less annoying. So it takes a lot more time and electricity to achieve that. Still, no conversion at all will preserve the best quality. Convert only if smaller size or compatibility with a playback device is more important (but for a "media library", best quality preservation should be the primary goal: once you lost quality due to a lossy conversion, it stays lost forever).
-
First of all thanks for the answers.
Yes i know that if i convert my library i will reduce the quality of the videos permanently but i need to convert it because i need storage so i cannot afford to have all untouched movies. my intention was to convert the vast majority of it and only maintain untouched "the best of the best".
In your opinion the convertion i did was bad? can you give me an honest opinion about it please -
-
The contained "Encoding settings" in the auxiliary stream are way too complex to spend time in analyzing them, because they are the whole set of "atomic" parameters, means, some comprehensive CLI parameters (like "preset" and "tune") have been split up into all the results they caused, and default values are not omitted but verbosely listed.
It would be more efficient to know your explicit CLI parameters. And even with those, I doubt anyone could give you an objective rating, as different people have different subjective priorities. At most, we could point at obvious mistakes and not very sensible combinations. -
i've simply set Mode: Two pass Bitrate: 6000 Preset: Medium Tune: none and Profile: unrestricted (With Staxrip)
at first i've tried also to change also the cu size and other parameters with the "quality" mode (the one with crf) but i could get a good result. if you need other parameters tell me but i think i've changed only these.
To be more specific my main goal is to compress file in 3 to 5 Gb with Max bitrate 9000, if you can help me with that i'll really appreciate it.Last edited by nikkikushin; 31st Aug 2017 at 09:20.
-
The safest way to keep the bitrate below a maximum is using both VBV parameters:
Code:--vbv-maxrate <integer> Max local bitrate (kbit/s). Default 0 --vbv-bufsize <integer> Set size of the VBV buffer (kbit). Default 0
Apart from that, CRF is usually the recommended bitrate control mode when you want to ensure a threshold of quality preservation, rather than approaching a specific file size. But expect varying file sizes depending on the compressibility of your content. -
-
Well, yes, it would limit the bitrate in some scenes so much that the quality loss will fluctuate. A more or less constant quality preservation requires some freedom in the bitrate development.
Is the hard limit of the bitrate necessary at all? Consumer devices will have a smaller decoding buffer; if it is just for a network broadcast between PC's, the restriction can be damped by a somewhat larger VBV buffer size (calculating for more than just e.g. 2 seconds). -
-
so guys, what are the setting i should put to convert an untoched bluray in a 3/5 Gb hevc file in your opinion. I'll gladly accept any suggestion (obviously i'm asking for a general help, not every parameters
-
You'll get about 1 GB per 1 Mb/s
FileSize/String : 31.8 GiB
Duration/String : 2 h 8 min
OverallBitRate_Mode/String: Variable
OverallBitRate/String : 35.4 Mb/sso guys, what are the setting i should put to convert an untoched bluray in a 3/5 Gb hevc file in your opinion. I'll gladly accept any suggestion (obviously i'm asking for a general help, not every parameters
Similar Threads
-
Subscription based programs good or bad?
By SyncroScales in forum Newbie / General discussionsReplies: 3Last Post: 6th Apr 2016, 14:09 -
Good DV file burnt to DVD by Toast looks bad
By HitTheRoad in forum MacReplies: 5Last Post: 6th Apr 2014, 14:22 -
The Good, the Bad and the Ugly
By Caiosouza in forum RestorationReplies: 0Last Post: 1st Dec 2013, 11:17 -
Stretching Videos: Good/Bad Idea?
By GrafZeppelin in forum Newbie / General discussionsReplies: 60Last Post: 19th May 2013, 15:38 -
WMV8 - bad, WMV9 - good.
By pooksahib in forum Video ConversionReplies: 12Last Post: 14th Jan 2013, 22:17