[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。 ]@EjKgs W7 $yE},z 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。 KH-.Z0
2U 所以,要點樣壓縮到好似前者一樣? d hy= x EHOdst 唔改變解像度,只改變碼率,應如何做?
@Hzsud
2B#WWb S1."2AxO 《死神》 G>b1No3%k General 8eNGPuoL) Complete name : F:\Video\[jumpcn][BLEACH][320][1280x720].mkv h!.(7qdd
Format : Matroska lU?"\m File size : 280 MiB n~
LR=o Duration : 24mn 7s <7XdT Overall bit rate : 1 621 Kbps Z6I!4K Encoded date : UTC 2011-05-03 17:33:29 Y*6*;0Kx Writing application : mkvmerge v2.9.9 ('Tutu') built on Nov 25 2009 21:13:32 r*Mm5QozA Writing library : libebml v0.7.9 + libmatroska v0.8.1 |kn}iA@72p Video #1 v'uQ'CiH ID : 1 Q]\xO/ Format : AVC GC~::m~ Format/Info : Advanced Video Codec h W-[omr0 Format profile : [url=mailto:High@L4.0]High@L4.0[/url] <]<50 Format settings, CABAC : Yes _+U`afV Format settings, ReFrames : 8 frames pT
<H& Muxing mode : Container profile=Unknown@4.0 xg8<b
Codec ID : V_MPEG4/ISO/AVC :?,&u,8 Duration : 23mn 55s UCQL~ Nominal bit rate : 1 500 Kbps W $y?~2 Width : 1 280 pixels wFe</U-'; Height : 720 pixels W\Gg!XsLk Display aspect ratio : 16:9 3jQ
|C= Frame rate : 23.810 fps -Bc.<pFqp Original frame rate : 23.976 fps W{%M+a[#l Resolution : 24 bits >U17BGJ. Colorimetry : 4:2:0 L.5GX 29 Scan type : Progressive c;WS !. Bits/(Pixel*Frame) : 0.068 4P.ry|2 Writing library : x264 core 98 r1629 2e81ce1 ',.Xn`c Encoding settings : cabac=1 / ref=8 / deblock=1:0:0 / analyse=0x3:0x133 / me=umh / subme=7 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=2 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=0 / chroma_qp_offset=-2 / threads=1 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / constrained_intra=0 / bframes=6 / b_pyramid=2 / b_adapt=2 / b_bias=0 / direct=3 / weightb=1 / weightp=0 / keyint=240 / keyint_min=24 / scenecut=40 / intra_refresh=0 / rc_lookahead=40 / rc=2pass / mbtree=1 / bitrate=1500 / ratetol=1.0 / qcomp=0.60 / qpmin=10 / qpmax=51 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / vbv_maxrate=3486 / vbv_bufsize=3487 / ip_ratio=1.40 / aq=1:0.50 / nal_hrd=none .p&M@h
w Audio #2 4#o` -vcW ID : 2 /a,q4tD@ Format : AAC %V$^CWOy Format/Info : Advanced Audio Codec 90q*V%cS Format version : Version 4 [wExjLW Format profile : LC 4B|f}7%\ Format settings, SBR : No yO !*pC Codec ID : A_AAC h0GXN\xI Duration : 24mn 7s Tb}b*d3 Channel(s) : 2 channels bY`k`3v Channel positions : L R E yNCky Sampling rate : 44.1 KHz (Lc%G~{ Resolution : 16 bits F$caKWzny5 Text #3 !({[^[! ID : 3
z\\MLyS Format : ASS iaMZ37 Codec ID : S_TEXT/ASS qRr;&M &t_ Codec ID/Info : Advanced Sub Station Alpha rC'97`!K Text #4 !l}es4~.a ID : 4 <fP|<>s$@1 Format : ASS R_-.:n%.z Codec ID : S_TEXT/ASS 0g1uM:; Codec ID/Info : Advanced Sub Station Alpha ej0q*TH. D;Z\GnD ============================================= v
+7<} m49)c K? 《GPX》 ^mH^cP?/ General Q ml<JF Complete name : F:\Video\1992.新世紀GPX.高智能一級方程式Ⅱ-DoubleOne\02_.mkv 1vX97n<} Format : Matroska um[.r,
++ File size : 320 MiB NZv1dy`fa Duration : 26mn 54s q$\KE4v" Overall bit rate : 1 663 Kbps H=*;3gM,' Encoded date : UTC 2011-05-16 14:48:07 %kF6y_h` Writing application : mkvmerge v4.3.0 ('Escape from the Island') 编译于 Sep 5 2010 10:30:51 R+P1 +5 Writing library : libebml v1.0.0 + libmatroska v1.0.0 `}1 8A.
K Video #1 C}7Sh6 ID : 1 9Y0w
SOSW Format : AVC }e1f kjWk Format/Info : Advanced Video Codec 59GS: Format profile : [url=mailto:High@L4.0]High@L4.0[/url] aK'BC>uFI Format settings, CABAC : Yes ^W;\faG Format settings, ReFrames : 2 frames _/hWzj=q Muxing mode : Container profile=Unknown@4.0 M4`qi3I Codec ID : V_MPEG4/ISO/AVC V4_ZBeWA Duration : 26mn 52s h/5.>[VwDh Width : 640 pixels f`T#=6C4| Height : 480 pixels e~xN[Q\0] Display aspect ratio : 4:3 .|!Kv+yD Frame rate : 23.976 fps G/b
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O} Original frame rate : 11.988 fps Uh{|@D Resolution : 24 bits ^`ny]3JA Colorimetry : 4:2:0 q5Z]Z.%3O Scan type : Progressive ]5wc8Kh" Writing library : x264 core 38 svn-341 G8j$&1`: Audio #2 I_\j0
5 ID : 2 af.yC
[ Format : AAC (V#5Cs,o: Format/Info : Advanced Audio Codec ]e!9{\X,* Format version : Version 4 Nvw'[?m Format profile : LC b0t/~]9G Format settings, SBR : Yes Z!DGCw Format settings, PS : No ',~,
hJ0 Codec ID : A_AAC n{aD4& Duration : 26mn 54s OLTgBXh Channel(s) : 2 channels 8do-z"- Channel positions : L R BVU>M*k Sampling rate : 44.1 KHz
eqV;4dhm Resolution : 16 bits r761v
tC# Video delay : -83ms zW8rC! Title : Cantonese粵語 T:dV[3 Language : Chinese -uX): h! Audio #3 :A"GOc, ID : 3 c3lU Format : AAC 4"7/+6Z Format/Info : Advanced Audio Codec w6aq/m"' Format version : Version 4 T@Mrb
ravc Format profile : LC DJR_"8 Format settings, SBR : Yes ?`8jn$W^ Format settings, PS : No O!#r2Y"?K1 Codec ID : A_AAC '| WY 2>/( Duration : 26mn 54s "&W80,O3 Channel(s) : 2 channels zb.dVK`7N- Channel positions : L R r1ao=N Sampling rate : 44.1 KHz 2M@,g8O+B= Resolution : 16 bits ?NWc3 . Video delay : -83ms vq=nG]cE) Title : 日語 ^zn&"@ Language : Japanese sN"<baZ ;LD!eWSK, ==============================================================
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