[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。 exSwx-zxI p=[dt 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。 5[zr(FuE 所以,要點樣壓縮到好似前者一樣? :,H_
e!
X ;
w%g*S 唔改變解像度,只改變碼率,應如何做? fU.hb%m)Q\ myXGMN$i 056yhB 《死神》 _kOuD}_| General "OUY^ cM Complete name : F:\Video\[jumpcn][BLEACH][320][1280x720].mkv =fBr2%qK Format : Matroska D//58z& File size : 280 MiB ?aG ~E Duration : 24mn 7s ^kB9
I8u Overall bit rate : 1 621 Kbps OK}8BY Encoded date : UTC 2011-05-03 17:33:29 _x#r,1V+D Writing application : mkvmerge v2.9.9 ('Tutu') built on Nov 25 2009 21:13:32 H~hAm Writing library : libebml v0.7.9 + libmatroska v0.8.1 >273V+dy Video #1 =(k0^#++G ID : 1 [qt^gy) Format : AVC x2f_>tu2 Format/Info : Advanced Video Codec G
WShv\c} Format profile : [url=mailto:High@L4.0]High@L4.0[/url] R?%|RCht1 Format settings, CABAC : Yes ' :]
w Format settings, ReFrames : 8 frames `V0]t_*D Muxing mode : Container profile=Unknown@4.0 0$49X Codec ID : V_MPEG4/ISO/AVC 8%U
)EU Duration : 23mn 55s *JOv Nominal bit rate : 1 500 Kbps IPE( Width : 1 280 pixels <~8W>Y\m Height : 720 pixels [K9q+ Display aspect ratio : 16:9 _H3cqD Frame rate : 23.810 fps j({L6</x Original frame rate : 23.976 fps D{z=)'/F Resolution : 24 bits EGMcU|yL Colorimetry : 4:2:0 "|&*MjwN6 Scan type : Progressive *'t`;m~ Bits/(Pixel*Frame) : 0.068 >zhbipA Writing library : x264 core 98 r1629 2e81ce1 ta4<d)nB Encoding settings : cabac=1 / ref=8 / deblock=1:0:0 / analyse=0x3:0x133 / me=umh / subme=7 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=2 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=0 / chroma_qp_offset=-2 / threads=1 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / constrained_intra=0 / bframes=6 / b_pyramid=2 / b_adapt=2 / b_bias=0 / direct=3 / weightb=1 / weightp=0 / keyint=240 / keyint_min=24 / scenecut=40 / intra_refresh=0 / rc_lookahead=40 / rc=2pass / mbtree=1 / bitrate=1500 / ratetol=1.0 / qcomp=0.60 / qpmin=10 / qpmax=51 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / vbv_maxrate=3486 / vbv_bufsize=3487 / ip_ratio=1.40 / aq=1:0.50 / nal_hrd=none {DO9{96w4 Audio #2 n<$I, IRE ID : 2 r#~6FpFVK^ Format : AAC 4%{m7CK} Format/Info : Advanced Audio Codec d16PY_ Format version : Version 4 zC^Ib&gm>, Format profile : LC OWkK]O Format settings, SBR : No 5VcYdu3 Codec ID : A_AAC hv)($; Duration : 24mn 7s GgYomR: Channel(s) : 2 channels _8>"&1n Channel positions : L R *dl@)~i Sampling rate : 44.1 KHz G#*;3X$ Resolution : 16 bits N@>S>U8C Text #3 a`uT'g[* ID : 3 kShniN Format : ASS J @fE") Codec ID : S_TEXT/ASS )qIK7; Codec ID/Info : Advanced Sub Station Alpha FRW.
Text #4 )em.KbsPPF ID : 4 >vU
Hf`4T Format : ASS SJ-Sac58r Codec ID : S_TEXT/ASS jo
*9QO Codec ID/Info : Advanced Sub Station Alpha 9vu8koL pS\>X_G3 ============================================= (Wqhuw!u
:S12=sFl$ 《GPX》 CmOb+:4@K General bRK9Qt#3 Complete name : F:\Video\1992.新世紀GPX.高智能一級方程式Ⅱ-DoubleOne\02_.mkv ~aG-^BAS Format : Matroska $EIkk= z File size : 320 MiB
P+0xi Duration : 26mn 54s ihrrmlN? Overall bit rate : 1 663 Kbps ;>9pJ72r Encoded date : UTC 2011-05-16 14:48:07 MavO`m&Cg Writing application : mkvmerge v4.3.0 ('Escape from the Island') 编译于 Sep 5 2010 10:30:51 df& |Lc1J Writing library : libebml v1.0.0 + libmatroska v1.0.0 c^IEj1@}'? Video #1 >>zoG3H! ID : 1 zP}v2 Format : AVC c&-$?f
r Format/Info : Advanced Video Codec VYo;[ue([ Format profile : [url=mailto:High@L4.0]High@L4.0[/url] o q)"1 Format settings, CABAC : Yes CJ
Format settings, ReFrames : 2 frames >:&p(eu)L0 Muxing mode : Container profile=Unknown@4.0 mp3_n:R? Codec ID : V_MPEG4/ISO/AVC %W;Gf9.w Duration : 26mn 52s Zb;$ZUWQX Width : 640 pixels s,H(m8#> Height : 480 pixels a' o8n6i Display aspect ratio : 4:3 #-j!
;? Frame rate : 23.976 fps E=lfg8yb: Original frame rate : 11.988 fps TJS1,3< Resolution : 24 bits 9XvM%aHs: Colorimetry : 4:2:0 {0WIDD Scan type : Progressive 00a<(sS; Writing library : x264 core 38 svn-341 :k(t/*Nl3 Audio #2 ^i)Q
CDU7 ID : 2 }SN44 di( Format : AAC aDvO
(C Format/Info : Advanced Audio Codec N<"6=z@w+ Format version : Version 4 gdFoTcHgO| Format profile : LC lWw!+[<:q1 Format settings, SBR : Yes ::Q); Format settings, PS : No qs1.@l(" Codec ID : A_AAC 2n;;Tso
" Duration : 26mn 54s 3/IWO4?_ Channel(s) : 2 channels {G1aAM\Hz Channel positions : L R Fp6[W5>(- Sampling rate : 44.1 KHz Nk7e iQ
Resolution : 16 bits f'`nx;@X Video delay : -83ms (06Vcqg Title : Cantonese粵語 0B$7S,2 Language : Chinese !k= 0X\5L Audio #3 +x9"#0|k; ID : 3 3
+8" Format : AAC |`Oa/\U Format/Info : Advanced Audio Codec OBw`!G*w Format version : Version 4 D"x$^6`c} Format profile : LC #?$'nya*u Format settings, SBR : Yes igj={==m Format settings, PS : No Oa\ `; Codec ID : A_AAC +{C9uY)$vf Duration : 26mn 54s MCi` TXr Channel(s) : 2 channels io9xI3{ Channel positions : L R >: W-C{% Sampling rate : 44.1 KHz Rgfc29(8 Resolution : 16 bits V@f
6Lj Video delay : -83ms =##s;zj(% Title : 日語 &G
pA1 Language : Japanese Q9yGQu sk7rU+< ==============================================================
|