[請問] 這兩個kmv差在哪? 畫質差蠻多、容量差 …
分別是720p和480p的檔案
解析度上720p比較高
音訊上兩者應該相同
可是480p的Overall bit rate卻比較高
請問是差在哪
該不會是字幕檔吧?
====720p的資訊如下====
File size : 226 MiB
Duration : 24mn 29s
Overall bit rate : 1 290 Kbps
Encoded date : UTC 2009-03-04 06:08:56
Writing application : mkvmerge v2.4.2 ('Oh My God') built on Jan 18
2009 17:30:28
Writing library : libebml v0.7.7 + libmatroska v0.8.1
Video #1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.1
Format settings, CABAC : Yes
Format settings, ReFrames : 8 frames
Muxing mode : Container profile=Unknown@4.1
Codec ID : V_MPEG4/ISO/AVC
Duration : 24mn 28s
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16/9
Frame rate : 23.981 fps
Original frame rate : 24.594 fps
Resolution : 24 bits
Colorimetry : 4:2:0
Scan type : Progressive
Language : Japanese
Audio #2
Format : AAC
Format/Info : Advanced Audio Codec
Format version : Version 4
Format profile : LC
Format settings, SBR : No
Codec ID : A_AAC
Duration : 24mn 29s
Channel(s) : 2 channels
Channel positions : L R
Sampling rate : 48.0 KHz
Resolution : 16 bits
Language : Japanese
Text #3
Format : ASS
Codec ID : S_TEXT/ASS
Codec ID/Info : Advanced Sub Station Alpha
Title : 繁體中文
Language : Chinese
Text #4
Format : ASS
Codec ID : S_TEXT/ASS
Codec ID/Info : Advanced Sub Station Alpha
Title : ?体中文
Language : Chinese
====480p的資訊如下====
Format : Matroska
File size : 234 MiB
Duration : 24mn 11s
Overall bit rate : 1 354 Kbps
Encoded date : UTC 2009-05-17 08:22:56
Writing application : mkvmerge v2.8.0 ('The Tree') built on May 14 2009
09:28:39
Writing library : libebml v0.7.7 + libmatroska v0.8.1
Video #1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L3.2
Format settings, CABAC : Yes
Format settings, ReFrames : 4 frames
Muxing mode : Container profile=Unknown@3.2
Codec ID : V_MPEG4/ISO/AVC
Duration : 24mn 10s
Width : 864 pixels
Height : 480 pixels
Display aspect ratio : 16/9
Frame rate : 23.976 fps
Resolution : 24 bits
Colorimetry : 4:2:0
Scan type : Progressive
Writing library : x264 core 67 r1145M d2e1e1c
Encoding settings : cabac=1 / ref=4 / deblock=1:0:0 / analyse=0x3:0x133
/ me=umh / subme=6 / psy_rd=0.0:0.0 / mixed_ref=1 / me_range=24 / chroma_me=1
/ trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / chroma_qp_offset=0 /
threads=3 / nr=0 / decimate=0 / mbaff=0 / bframes=4 / b_pyramid=1 / b_adapt=1
/ b_bias=0 / direct=3 / wpredb=1 / keyint=250 / keyint_min=25 / scenecut=40 /
rc=crf / crf=18.5 / qcomp=0.60 / qpmin=10 / qpmax=51 / qpstep=4 /
ip_ratio=1.40 / pb_ratio=1.30 / aq=0
Language : Japanese
Audio #2
Format : AAC
Format/Info : Advanced Audio Codec
Format version : Version 4
Format profile : LC
Format settings, SBR : No
Codec ID : A_AAC
Duration : 24mn 11s
Channel(s) : 2 channels
Channel positions : L R
Sampling rate : 48.0 KHz
Resolution : 16 bits
Title : Anime
Language : Japanese
Audio #3
Format : AAC
Format/Info : Advanced Audio Codec
Format version : Version 4
Format profile : LC
Format settings, SBR : No
Codec ID : A_AAC
Duration : 24mn 11s
Channel(s) : 2 channels
Channel positions : L R
Sampling rate : 48.0 KHz
Resolution : 16 bits
Title : Comment
Language : Japanese
Text #4
Format : ASS
Codec ID : S_TEXT/ASS
Codec ID/Info : Advanced Sub Station Alpha
Title : GB
Language : Chinese
Text #5
Format : ASS
Codec ID : S_TEXT/ASS
Codec ID/Info : Advanced Sub Station Alpha
Title : Big5
Language : Chinese
Text #6
Format : ASS
Codec ID : S_TEXT/ASS
Codec ID/Info : Advanced Sub Station Alpha
Title : JIS
Language : Japanese
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◆ From: 61.31.139.161
※ 編輯: sjory 來自: 61.31.139.161 (11/27 16:05)
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