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 [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。 YQO9$g0% ~  
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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。 WO+>W+|N  
所以,要點樣壓縮到好似前者一樣? OF! n}.O(  
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唔改變解像度,只改變碼率,應如何做? u H)v\Js  
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《死神》 xw1n;IO4  
  General $\nAGmp@  
    Complete name : F:\Video\[jumpcn][BLEACH][320][1280x720].mkv TaTw,K|/  
    Format : Matroska /JP%gD"8  
    File size : 280 MiB 0 |Rmb  
    Duration : 24mn 7s L'x[wM0w;  
    Overall bit rate : 1 621 Kbps (V8lmp-F  
    Encoded date : UTC 2011-05-03 17:33:29 !O/(._YB`  
    Writing application : mkvmerge v2.9.9 ('Tutu') built on Nov 25 2009 21:13:32 /p[lOg  
    Writing library : libebml v0.7.9 + libmatroska v0.8.1 Hl*/s  
  Video #1 t|k-Bh:x  
    ID : 1 _ n3"  
    Format : AVC Cn8w}) B  
    Format/Info : Advanced Video Codec P&8QKX3 j^  
    Format profile : [url=mailto:High@L4.0]High@L4.0[/url] XZ1<sm8t."  
    Format settings, CABAC : Yes ^-pHhh|g  
    Format settings, ReFrames : 8 frames sRf?JyB  
    Muxing mode : Container profile=Unknown@4.0 G' a{;3  
    Codec ID : V_MPEG4/ISO/AVC d^ YM@>%  
    Duration : 23mn 55s $56Z/*  
    Nominal bit rate : 1 500 Kbps i slg5  
    Width : 1 280 pixels \>GHc}  
    Height : 720 pixels CLX!qw]@ +  
    Display aspect ratio : 16:9 ~xP4}gs1  
    Frame rate : 23.810 fps $ -n?q w  
    Original frame rate : 23.976 fps I~P]_D mM  
    Resolution : 24 bits n{v[mqm^  
    Colorimetry : 4:2:0 #99fFs`w  
    Scan type : Progressive 1{7*0cv$iL  
    Bits/(Pixel*Frame) : 0.068 g4 G?hv`R  
    Writing library : x264 core 98 r1629 2e81ce1 57eA ( uI  
    Encoding settings : cabac=1 / ref=8 / deblock=1:0:0 / analyse=0x3:0x133 / me=umh / subme=7 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=2 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=0 / chroma_qp_offset=-2 / threads=1 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / constrained_intra=0 / bframes=6 / b_pyramid=2 / b_adapt=2 / b_bias=0 / direct=3 / weightb=1 / weightp=0 / keyint=240 / keyint_min=24 / scenecut=40 / intra_refresh=0 / rc_lookahead=40 / rc=2pass / mbtree=1 / bitrate=1500 / ratetol=1.0 / qcomp=0.60 / qpmin=10 / qpmax=51 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / vbv_maxrate=3486 / vbv_bufsize=3487 / ip_ratio=1.40 / aq=1:0.50 / nal_hrd=none GH!Lu\y\  
  Audio #2 r @ IyK%  
    ID : 2 w-M,@[G  
    Format : AAC Pn[R.u(l  
    Format/Info : Advanced Audio Codec nd)bRB  
    Format version : Version 4 :CJ]^v   
    Format profile : LC +)eI8o0#  
    Format settings, SBR : No gnPu{-Ec*  
    Codec ID : A_AAC P5^<c\Mr,Y  
    Duration : 24mn 7s Z} Ld!Byz  
    Channel(s) : 2 channels xJ18M@" j  
    Channel positions : L R i`}nv,  
    Sampling rate : 44.1 KHz ev_4!+ko  
    Resolution : 16 bits wZ_k]{J  
  Text #3 o2C{V1nB  
    ID : 3 .7|kxJq  
    Format : ASS 3+j!{tJ z2  
    Codec ID : S_TEXT/ASS /d\#|[S  
    Codec ID/Info : Advanced Sub Station Alpha \q0wY7w  
  Text #4 vCB0 x:/  
    ID : 4 K~ 6[zJ4  
    Format : ASS l,pI~A`w_  
    Codec ID : S_TEXT/ASS 6/Pw'4H9$  
    Codec ID/Info : Advanced Sub Station Alpha
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/kLG/ry8l:  
============================================= sfv{z!mo  
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《GPX》 gW[(gf.oo  
  General q (?%$u.  
    Complete name : F:\Video\1992.新世紀GPX.高智能一級方程式Ⅱ-DoubleOne\02_.mkv yv@td+-"D  
    Format : Matroska &ZmHR^Flz  
    File size : 320 MiB |N{?LKR %  
    Duration : 26mn 54s @w H+,]xE  
    Overall bit rate : 1 663 Kbps  yO7xAb  
    Encoded date : UTC 2011-05-16 14:48:07 'D B4po.   
    Writing application : mkvmerge v4.3.0 ('Escape from the Island') 编译于 Sep 5 2010 10:30:51 /:YJ2AARY  
    Writing library : libebml v1.0.0 + libmatroska v1.0.0 Y_H|Fl^  
  Video #1 kFJ sB,2-  
    ID : 1 Y'75DE<BC  
    Format : AVC }b// oe7  
    Format/Info : Advanced Video Codec 7*!h:rg  
    Format profile : [url=mailto:High@L4.0]High@L4.0[/url] h";0i:  
    Format settings, CABAC : Yes e?Pzhh a  
    Format settings, ReFrames : 2 frames ]kJinXHW  
    Muxing mode : Container profile=Unknown@4.0 /rKdxsI*  
    Codec ID : V_MPEG4/ISO/AVC S,K'y?6  
    Duration : 26mn 52s X*Ibk-PUM  
    Width : 640 pixels $6W o$c%  
    Height : 480 pixels g4NxNjM;  
    Display aspect ratio : 4:3 xQ4'$rL1d  
    Frame rate : 23.976 fps O!0YlIvWv  
    Original frame rate : 11.988 fps y7K&@ Y  
    Resolution : 24 bits "bO\Wt#Mf  
    Colorimetry : 4:2:0 yPgDb[V+  
    Scan type : Progressive *Q?ZJS ~  
    Writing library : x264 core 38 svn-341 '$5.{o`s*1  
  Audio #2 0JQ0lzk1  
    ID : 2 +- ~:E_G  
    Format : AAC `yjHLg  
    Format/Info : Advanced Audio Codec MXS N <  
    Format version : Version 4 8.-0_C*U;  
    Format profile : LC E7A psi4]  
    Format settings, SBR : Yes L* k[Vc  
    Format settings, PS : No -E6#G[JJ  
    Codec ID : A_AAC (=v :@\r  
    Duration : 26mn 54s +T*=JHOD  
    Channel(s) : 2 channels _[zZm *  
    Channel positions : L R !PQ%h/ix  
    Sampling rate : 44.1 KHz U} EaV<  
    Resolution : 16 bits #fq%903=  
    Video delay : -83ms l^.d 3b  
    Title : Cantonese粵語 m3Mo2};?  
    Language : Chinese lHRs3+  
  Audio #3 k q;1Ax0 {  
    ID : 3 ~r/"w'dB  
    Format : AAC }6;K+INT  
    Format/Info : Advanced Audio Codec Bw;gl^:UG  
    Format version : Version 4 =?o,' n0  
    Format profile : LC lSMv9 :N  
    Format settings, SBR : Yes !+sC'/  
    Format settings, PS : No |u r/6{Oj1  
    Codec ID : A_AAC _n6ge*,E  
    Duration : 26mn 54s U_s3)/'  
    Channel(s) : 2 channels ChvSUaCS  
    Channel positions : L R 26SXuFJ@  
    Sampling rate : 44.1 KHz n$2Ia E;v  
    Resolution : 16 bits W''%{A/'  
    Video delay : -83ms QO1pwrX<  
    Title : 日語 -L4fp  
    Language : Japanese
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==============================================================
顶端 Posted: 2011-05-17 11:21 | [楼 主]
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