请懂编码的朋友帮我对比一下
A.General
Unique ID : 188643551895292214336372215979940658341 (0x8DEB6D31CBAEADBC836010B279163CA5)
Complete name : --
Format : Matroska
File size : 1.53 GiB
Duration : 58mn 54s
Overall bit rate : 3 717 Kbps
Encoded date : UTC 2012-10-20 03:37:23
Writing application : mkvmerge v5.6.0 ('Kenya Kane') built on May 27 2012 16:44:04
Writing library : libebml v1.2.3 + libmatroska v1.3.0
Video
ID : 2
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.1
Format settings, CABAC : Yes
Format settings, ReFrames : 9 frames
Muxing mode : Header stripping
Codec ID : V_MPEG4/ISO/AVC
Duration : 58mn 54s
Nominal bit rate : 3 526 Kbps
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Frame rate : 29.970 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.128
Title : Encode by NGB-TTG
Writing library : x264 core 125 r2200 999b753
Encoding settings : cabac=1 / ref=9 / deblock=1:-3:-3 / **yse=0x3:0x133 / me=umh / subme=10 / psy=1 / psy_rd=1.00:0.15 / mixed_ref=1 / me_range=48 / chroma_me=1 / trellis=2 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=0 / chroma_qp_offset=-3 / threads=12 / lookahead_threads=2 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=8 / b_pyramid=2 / b_adapt=2 / b_bias=0 / direct=3 / weightb=1 / open_gop=0 / weightp=2 / keyint=300 / keyint_min=30 / scenecut=40 / intra_refresh=0 / rc_lookahead=40 / rc=2pass / mbtree=1 / bitrate=3526 / ratetol=1.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / ip_ratio=1.40 / aq=1:1.00
Language : Japanese
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B.
General
Unique ID : 213980715133944662697715207495582252720 (0xA0FB2FCA3F1743F2B6DC5DFCF3E47EB0)
Complete name : --
Format : Matroska
File size : 2.69 GiB
Duration : 58mn 51s
Overall bit rate : 6 545 Kbps
Encoded date : UTC 2012-10-26 17:40:20
Writing application : mkvmerge v4.9.1 ('Ich will') 編譯於 Jul 11 2011 23:53:15
Writing library : libebml v1.2.1 + libmatroska v1.1.1
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.0
Format settings, CABAC : Yes
Format settings, ReFrames : 4 frames
Format settings, GOP : M=2, N=32
Muxing mode : Header stripping
Codec ID : V_MPEG4/ISO/AVC
Duration : 58mn 51s
Nominal bit rate : 6 200 Kbps
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate : 29.970 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.100
Writing library : x264 core 125 r2200 999b753
Encoding settings : cabac=1 / ref=2 / deblock=1:0:0 / **yse=0x3:0x113 / me=hex / subme=4 / psy=0 / mixed_ref=0 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=0 / threads=6 / lookahead_threads=1 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=1 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=1 / keyint=300 / keyint_min=29 / scenecut=40 / intra_refresh=0 / rc_lookahead=20 / rc=abr / mbtree=1 / bitrate=6200 / ratetol=1.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / ip_ratio=1.40 / aq=1:0.00
我看起来720p版本的比1080p的要清晰?? 本帖最后由 moonshine 于 2012-11-20 16:06 编辑
按标准分辨率观看，720P效果要比1080P好
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720P属于精编，1080P粗制滥造，极可能码率不足（具体视片源而定）
B是直接录制的1080i吧?
moonshine 发表于 2012-11-20 16:05 static/image/common/back.gif
按标准分辨率观看，720P效果要比1080P好
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720P属于精编，1080P粗制滥造， ...
片源应该都是HDTV 1080i, 码率20M以上.
请问从上面的数据看, 能看出不同么? 看源是否相同啊还有压制技术 比较清晰度得比较同帧截图 720P subme=10 1080P subme=4
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