C:\Documents and Settings\zhang-l\桌面\M2U00212.MPG
General
Complete name : C:\Documents and Settings\zhang-l\桌面\M2U00212.MPG
Format : MPEG-PS
File size : 22.0 MiB
Duration : 19s 712ms
Overall bit rate : 9 376 Kbps
Video #224
ID : 224 (0xE0)
Format : MPEG Video
Format version : Version 2
Format profile : Main@Main
Format settings, BVOP : Yes
Format settings, Matrix : Default
Format settings, GOP : M=3, N=12
Duration : 19s 600ms
Bit rate mode : Variable
Bit rate : 9 100 Kbps
Width : 720 pixels
Height : 576 pixels
Display aspect ratio : 16:9
Frame rate : 25.000 fps
Standard : PAL
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Interlaced
Scan order : Top Field First
Bits/(Pixel*Frame) : 0.878
Stream size : 20.9 MiB (95%)
Audio #128
ID : 128 (0x80)
Format : AC-3
Format/Info : Audio Coding 3
Mode extension : CM (complete main)
Duration : 19s 712ms
Bit rate mode : Constant
Bit rate : 256 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 48.0 KHz
Bit depth : 16 bits
Video delay : -80ms
Stream size : 616 KiB (3%)
这些是什么意思?能不能看出摄像机的好坏?
---------------------
C:\Documents and Settings\zhang-l\桌面\M2U00212.MPG
[以上是数字文件存储路径]
General
[通用信息]
Complete name : C:\Documents and Settings\zhang-l\桌面\M2U00212.MPG
[路径名]
Format : MPEG-PS
[格式:MPEG-PS(一种常见的家用高清数字摄像格式)]
File size : 22.0 MiB
[文件大小:22M]
Duration : 19s 712ms
[时长:19.712秒]
Overall bit rate : 9 376 Kbps
[总体比特率:9376Kb/s(比较高了,一般网上下载的标清电影也就2000kbps左右)]
[注意,以下是视频信息]
Video #224
ID : 224 (0xE0)
[以上两排是视频拍摄序号,一般代表该摄像机所拍摄的第几个文件。]
Format : MPEG Video
[格式:MPEG视频]
Format version : Version 2
[格式版本:2.0版]
Format profile : Main@Main
[格式简介:Main@Main(此文字只是占位并无实际意义)]
Format settings, BVOP : Yes
[格式设置,BVOP:是]
Format settings, Matrix : Default
[格式设置,矩阵:默认]
Format settings, GOP : M=3, N=12
[格式设置,GOP:M=3, N=12 ]
Duration : 19s 600ms
[时长:19秒600]
Bit rate mode : Variable
[比特率模式:可变比特率]
Bit rate : 9 100 Kbps
[比特率:9100Kbps]
Width : 720 pixels
[画面宽度:720像素]
Height : 576 pixels
[画面高度:576像素]
Display aspect ratio : 16:9
[画面长宽比:16:9]
Frame rate : 25.000 fps
[影片帧率:25帧/秒]
Standard : PAL
[图像制式:PAL制式(常见的电视制式)]
Color space : YUV
[色彩空间:YUV(常见的电视色彩空间)]
Chroma subsampling : 4:2:0
[色度抽样:4:2:0]
Bit depth : 8 bits
(位深度:8位)
Scan type : Interlaced
[扫描类型:交错]
Scan order : Top Field First
[扫描顺序:顶部优先]
Bits/(Pixel*Frame) : 0.878
[这是一个比值,即“比特率/(总像素*帧数)”=9100000/(720*576*25)=0.878]
Stream size : 20.9 MiB (95%)
[流大小:20.9M(约占文件总大小的95%)]
[注意,以下是音频信息]
Audio #128
ID : 128 (0x80)
[以上两排是音频序号]
Format : AC-3
[格式:AC-3]
Format/Info : Audio Coding 3
[格式/信息:音频编码3]
Mode extension : CM (complete main)
[扩展模式:主要完成]
Duration : 19s 712ms
[时长:19秒712]
Bit rate mode : Constant
[比特率模式:固定]
Bit rate : 256 Kbps
[比特率:256Kbps(比较好的MP3都是这个比特率,一般的都是128的)]
Channel(s) : 2 channels
[声道数:2声道]
Channel positions : Front: L R
[声道分布:前左、前右]
Sampling rate : 48.0 KHz
[采样率:48.0KHz]
Bit depth : 16 bits
[位深度:16]
Video delay : -80ms
[视频延迟:-80毫秒]
Stream size : 616 KiB (3%)
[流大小:616KB(约占文件总大小的3%)]
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