[問題]點樣壓縮視頻嘅碼率?
0
比較下面兩集動畫。前者1280x720,比後者640x480嘅SIZE重要細。 =`X@+~%- _ QM 雖然,後者有兩條音頻,但都係好細,13MB/條。就算將兩條音頻刪除,文件SIZ仍然係好大。 0PnW|N0 所以,要點樣壓縮到好似前者一樣? z~xN]= t?]6>J_V 唔改變解像度,只改變碼率,應如何做? 8P!dk5,,O m=S[Y^tR ,\DB8v6l\A 《死神》 Hk\+;'PrN General l#o43xr
Complete name : F:\Video\[jumpcn][BLEACH][320][1280x720].mkv d#a Format : Matroska @U:T}5)wc File size : 280 MiB );z}T0C Duration : 24mn 7s 1qUdj[Bj Overall bit rate : 1 621 Kbps MZw%s(lv Encoded date : UTC 2011-05-03 17:33:29 gH\r# wy| Writing application : mkvmerge v2.9.9 ('Tutu') built on Nov 25 2009 21:13:32 ^^?DYC
Writing library : libebml v0.7.9 + libmatroska v0.8.1 e^Xij Id. Video #1 6ddkUPTF ID : 1 B@zJ\Ir[ Format : AVC faO8
& Format/Info : Advanced Video Codec I9F[b#'Pn Format profile : [url=mailto:High@L4.0]High@L4.0[/url] fr#lH3 Format settings, CABAC : Yes qfSoF| Format settings, ReFrames : 8 frames HnP;1Gi Muxing mode : Container profile=Unknown@4.0 :LBe{Jbw Codec ID : V_MPEG4/ISO/AVC D
8?$Fn= Duration : 23mn 55s h{* O9O< Nominal bit rate : 1 500 Kbps btOTDqG`a Width : 1 280 pixels (J$
A Height : 720 pixels W;N/Y3Lb Display aspect ratio : 16:9 xeI ,Kz." Frame rate : 23.810 fps /
5x`TT Original frame rate : 23.976 fps m|]^f;7z Resolution : 24 bits DYWC]* Colorimetry : 4:2:0
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Scan type : Progressive Pj.~|5gnf Bits/(Pixel*Frame) : 0.068
yX-xVvlv@ Writing library : x264 core 98 r1629 2e81ce1 r/4]b]n Encoding settings : cabac=1 / ref=8 / deblock=1:0:0 / analyse=0x3:0x133 / me=umh / subme=7 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=2 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=0 / chroma_qp_offset=-2 / threads=1 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / constrained_intra=0 / bframes=6 / b_pyramid=2 / b_adapt=2 / b_bias=0 / direct=3 / weightb=1 / weightp=0 / keyint=240 / keyint_min=24 / scenecut=40 / intra_refresh=0 / rc_lookahead=40 / rc=2pass / mbtree=1 / bitrate=1500 / ratetol=1.0 / qcomp=0.60 / qpmin=10 / qpmax=51 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / vbv_maxrate=3486 / vbv_bufsize=3487 / ip_ratio=1.40 / aq=1:0.50 / nal_hrd=none I)Lb"
Audio #2 gPwp
[ ID : 2 5i^vN"J Format : AAC &!a2%%1#N Format/Info : Advanced Audio Codec jkP70Is Format version : Version 4 [;=ky<K0E Format profile : LC +lT]s#Fif Format settings, SBR : No 9Bk}g50$# Codec ID : A_AAC E
)hinH Duration : 24mn 7s ]R{"=H' Channel(s) : 2 channels \z`d}\3(R Channel positions : L R ]2%P``Yj Sampling rate : 44.1 KHz ptv4v[gQ Resolution : 16 bits NydW9r:T Text #3 ];d:z[\P ID : 3 :3>yr5a7- Format : ASS &8AS=v Codec ID : S_TEXT/ASS /C"s_:m;3 Codec ID/Info : Advanced Sub Station Alpha i>Bi&azx Text #4 h==GdS4 ID : 4 !-RpRRR[Co Format : ASS `/JR}g{O Codec ID : S_TEXT/ASS y]YS2^ Codec ID/Info : Advanced Sub Station Alpha 4`-?r%$,: SxW}Z_8x ============================================= K@sP~(' eN<pU%7 《GPX》 ck
jVa\ General 'oiD#\t4 Complete name : F:\Video\1992.新世紀GPX.高智能一級方程式Ⅱ-DoubleOne\02_.mkv /yw\(|T Format : Matroska !Ir1qt8T File size : 320 MiB /,!7jF: Duration : 26mn 54s &v
auLp Overall bit rate : 1 663 Kbps vBnKu Encoded date : UTC 2011-05-16 14:48:07 %is,t<G Writing application : mkvmerge v4.3.0 ('Escape from the Island') 编译于 Sep 5 2010 10:30:51 tgvpf/cQ Writing library : libebml v1.0.0 + libmatroska v1.0.0 r8
Zyld_@ Video #1 V^Mf4!A(y ID : 1 yYG3/Z3u5 Format : AVC YM`:L Format/Info : Advanced Video Codec rAlh&
?X Format profile : [url=mailto:High@L4.0]High@L4.0[/url] \2].|Mym Format settings, CABAC : Yes .o\;,l2 Format settings, ReFrames : 2 frames z@Z_] h
Muxing mode : Container profile=Unknown@4.0 <=)D=Ax/_[ Codec ID : V_MPEG4/ISO/AVC ^&`sWO@= Duration : 26mn 52s Q3NPwM Width : 640 pixels LXh@o1 Height : 480 pixels 6Q.{llO Display aspect ratio : 4:3 k9^+9P^L Frame rate : 23.976 fps %k3NT~ Original frame rate : 11.988 fps o~OwE7H)A Resolution : 24 bits [):{5hMA Colorimetry : 4:2:0 6?3/Ul} Scan type : Progressive X
zi'Lu` Writing library : x264 core 38 svn-341 _DPB?)!x Audio #2 L;1$xI8tx ID : 2 05l0B5'p Format : AAC toS(UM n Format/Info : Advanced Audio Codec 0`VD!_` Format version : Version 4 kfMhw M8kP Format profile : LC 8
3z'# Format settings, SBR : Yes dWsT Jyx~ Format settings, PS : No B
`?N,N" Codec ID : A_AAC `ir&]jh.A Duration : 26mn 54s 'i@,~[Z4 Channel(s) : 2 channels
F^ I\X Channel positions : L R Wmz q Sampling rate : 44.1 KHz $x?NNS_ "J Resolution : 16 bits zq,iLoY[R Video delay : -83ms ?j1_
n,d Title : Cantonese粵語 )>(L{y|uYX Language : Chinese EKqi+T^=F Audio #3 |0tg:\. ID : 3 BX@pt;$ek7 Format : AAC :|Z$3q Format/Info : Advanced Audio Codec 3LKB; Format version : Version 4 +p13xc?#j Format profile : LC Nc{]zWL9 Format settings, SBR : Yes aGpCNc{+ Format settings, PS : No XR|"dbZW.0 Codec ID : A_AAC u FMIY(vB Duration : 26mn 54s *i`v~> Channel(s) : 2 channels rFhW^fP/ Channel positions : L R 4py(R-8\ Sampling rate : 44.1 KHz 5 d+<EF+N Resolution : 16 bits #e*X0;m Video delay : -83ms B]1HS`
*7 Title : 日語 WM/#. Language : Japanese
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