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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。 L^6"' #  
I+*o sk  
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。 $K`_ K#A  
所以,要點樣壓縮到好似前者一樣? rFf :A-#l  
cZ6?P`X  
唔改變解像度,只改變碼率,應如何做? < }<#W/  
ThjUiuWe  
>s;oOo+5  
《死神》 )ZQHa7V  
  General `Q:de~+AM{  
    Complete name : F:\Video\[jumpcn][BLEACH][320][1280x720].mkv +G<} JJ'V  
    Format : Matroska E7V38Z  
    File size : 280 MiB s4x'f$r  
    Duration : 24mn 7s YI L'YNH  
    Overall bit rate : 1 621 Kbps sGXp}{E9  
    Encoded date : UTC 2011-05-03 17:33:29 rdXCWK$E  
    Writing application : mkvmerge v2.9.9 ('Tutu') built on Nov 25 2009 21:13:32 \'^Z_6{w  
    Writing library : libebml v0.7.9 + libmatroska v0.8.1 ^)0{42!]  
  Video #1 6'sFmC  
    ID : 1 >G3 J3P(  
    Format : AVC ygy #^  
    Format/Info : Advanced Video Codec `bi_)i6Low  
    Format profile : [url=mailto:[email protected]][email protected][/url] * SON>BSF  
    Format settings, CABAC : Yes Mb/6>  
    Format settings, ReFrames : 8 frames . =foXN  
    Muxing mode : Container [email protected] %Pvb>U(Xs  
    Codec ID : V_MPEG4/ISO/AVC m{y NnJ3O  
    Duration : 23mn 55s hjp ?/i%TQ  
    Nominal bit rate : 1 500 Kbps ^CZ|ci6bX  
    Width : 1 280 pixels yI|?iBc7nC  
    Height : 720 pixels m"m;(T{ v  
    Display aspect ratio : 16:9 +&zuI  
    Frame rate : 23.810 fps u(G;57ms  
    Original frame rate : 23.976 fps %Ja{IWz9L  
    Resolution : 24 bits _.8]7f`*Gc  
    Colorimetry : 4:2:0 ]3# @t:>  
    Scan type : Progressive ]}Hv,a   
    Bits/(Pixel*Frame) : 0.068 x 3co?  
    Writing library : x264 core 98 r1629 2e81ce1 r_<i*l.  
    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 C%o/  
  Audio #2 "N:]d*A\  
    ID : 2 W oG  
    Format : AAC 8;BwzRtgT  
    Format/Info : Advanced Audio Codec :;u]Y7  
    Format version : Version 4 Tu#k+f*s  
    Format profile : LC tfIBsw.  
    Format settings, SBR : No (S 3kP5:F  
    Codec ID : A_AAC 7n/I'r  
    Duration : 24mn 7s Bq =](<>>  
    Channel(s) : 2 channels ;8Q?`=a  
    Channel positions : L R X \ZUt >  
    Sampling rate : 44.1 KHz I{UB!0H  
    Resolution : 16 bits `.Q3s?1F  
  Text #3 Os]M$c_88  
    ID : 3  .5r0%  
    Format : ASS *Z(C' )7r  
    Codec ID : S_TEXT/ASS 4nXS9RiF2  
    Codec ID/Info : Advanced Sub Station Alpha Q#bo!]H{t  
  Text #4 Z'M@DY/fdK  
    ID : 4 E*"E{E7  
    Format : ASS =v"{EmT[$  
    Codec ID : S_TEXT/ASS \zDV|n~{w  
    Codec ID/Info : Advanced Sub Station Alpha
$l"(tB7d  
ds[~Cp   
============================================= 0kEq|k9  
(G'ddZAJV  
《GPX》 N=x,96CF  
  General cne[-E  
    Complete name : F:\Video\1992.新世紀GPX.高智能一級方程式Ⅱ-DoubleOne\02_.mkv 7nIMIkT:  
    Format : Matroska Z)~4)71Y:  
    File size : 320 MiB Pk2 "\y@q/  
    Duration : 26mn 54s |Q+v6r(<zZ  
    Overall bit rate : 1 663 Kbps >rGlj  
    Encoded date : UTC 2011-05-16 14:48:07 %%u4( '=  
    Writing application : mkvmerge v4.3.0 ('Escape from the Island') 编译于 Sep 5 2010 10:30:51 pYQs|5d  
    Writing library : libebml v1.0.0 + libmatroska v1.0.0 ,^T2hY`  
  Video #1 }DwXs`M7  
    ID : 1 @UBp;pb}=h  
    Format : AVC W`kgYGnFG  
    Format/Info : Advanced Video Codec Rh^$0Q*2  
    Format profile : [url=mailto:[email protected]][email protected][/url] z""(M4  
    Format settings, CABAC : Yes P V Q%y  
    Format settings, ReFrames : 2 frames B dUyI_Ks:  
    Muxing mode : Container [email protected] mZ%\`H+  
    Codec ID : V_MPEG4/ISO/AVC 7Q&P4{hi0  
    Duration : 26mn 52s >~ :]+q  
    Width : 640 pixels _ 9dV 3I  
    Height : 480 pixels ] a()siT  
    Display aspect ratio : 4:3 rL/+`H  
    Frame rate : 23.976 fps E&AR=y qk  
    Original frame rate : 11.988 fps _ 4w%U[GT,  
    Resolution : 24 bits Z9y:}:j"  
    Colorimetry : 4:2:0 MmB-SR[>P  
    Scan type : Progressive |m% &Qb  
    Writing library : x264 core 38 svn-341 9v A`\\9  
  Audio #2 mCo5 Gdt  
    ID : 2 a &j?"o  
    Format : AAC 3`y:W9!u  
    Format/Info : Advanced Audio Codec Ra5cfkH;  
    Format version : Version 4 \GN5Sy]r  
    Format profile : LC spf}{o  
    Format settings, SBR : Yes 0#ph1a<  
    Format settings, PS : No YZ}gZQ.A0  
    Codec ID : A_AAC KRQ/wuv  
    Duration : 26mn 54s :zCm$@  
    Channel(s) : 2 channels [g{}0 [ew  
    Channel positions : L R j8b:+io  
    Sampling rate : 44.1 KHz #KwFrlZ  
    Resolution : 16 bits lZ|Ao0(  
    Video delay : -83ms pGC`HTo|  
    Title : Cantonese粵語 c:bB4ch}  
    Language : Chinese e1#}/U  
  Audio #3 W^x[ma z  
    ID : 3 {"<Q?yA2y  
    Format : AAC f,$CiZ"  
    Format/Info : Advanced Audio Codec `yhL11 ]~  
    Format version : Version 4 |^=`ln!  
    Format profile : LC =\3*;59\  
    Format settings, SBR : Yes )z aMycW  
    Format settings, PS : No b~|B(lL6Xm  
    Codec ID : A_AAC 6};Sn/ 8  
    Duration : 26mn 54s A4# m&o  
    Channel(s) : 2 channels xsa* XR  
    Channel positions : L R L3/ ua  
    Sampling rate : 44.1 KHz ' ft  |  
    Resolution : 16 bits N>/U%01a  
    Video delay : -83ms !,\]> c  
    Title : 日語 ]t,ppFC#  
    Language : Japanese
;%U`P8b!  
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==============================================================
顶端 Posted: 2011-05-17 11:21 | [楼 主]
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