『漫游』酷论坛>『影音数码技术学习交流』>[发现]如何重新壓縮雙 ..
[发现]如何重新壓縮雙fps的wmv/avi到單fps的avi呢?
roytam1@2004-09-21 21:39
avi資訊:
--- File Information ---
File Name: kiminozo_npv.avi
File Name (with full path): D:\kiminozo_npv.avi
File Size (in bytes): 46,797,824
--- Container Information ---
Base Type (e.g "AVI"): AVI(.AVI)
Subtype (e.g "OpenDML"): Multipart OpenDML AVI, (8456 frames in first part, 2439 frames follow)
Interleave (in ms):
Preload (in ms):
Audio alignment("split across interleaves"):
Total System Bitrate (kbps): 0
Bytes Missing (if any):
Number of Audio Streams: 1
--- Video Information ---
Video Codec Type(e.g. "DIV3"): WMV3
Video Codec Name(e.g. "DivX 3, Low-Motion"): Windows Media Video V9
Video Codec Status(e.g. "Codec Is Installed"): Codec(s) are Installed
Duration (hh:mm:ss): 00:03:02 (注:是00:02:21才對...可能是用avimux轉時弄錯了)
Frame Count: 10895
Frame Width (pixels): 640
Frame Height (pixels): 480
Frame Aspect Ratio (e.g "1.3333"):
Frame Aspect Ratio (e.g. "4:3"):
Pixel Aspect Ratio ("SAR"):
Display Aspect Ratio ("DAR"): 1.333
Frames Per Second: ***ERROR*** (注:這檔案是由24fps+30fps的wmv用avi mux轉過來的)
Video Bitrate (kbps): 1871
MPEG-4 ("MPEG-4" or ""):
B-VOP ("B-VOP" or ""):
QPel ("QPel" or ""):
GMC ("GMC" or ""):
H264 ("H264" or ""):
MPEG-2 ("MPEG-2" or ""):
Interlaced ("I/L" or ""):
Progressive ("Prog" or ""):
Top Frame First ("TFF" or ""):
Bottom Frame First ("BFF" or ""):
3:2 Pulldown ("3:2" or ""):
Picture-per-field ("PPF" or ""):
- Aspect Ratio Related:
Broadcast standard: "PAL" (else blank)
Broadcast standard: "NTSC" (else blank)
src:"VCD", "SVCD", "CVD", or "DVD (else blank):
Instructions to convert to VCD, first part:
Instructions to convert to VCD, second part:
Instructions to convert to SVCD, first part:
Instructions to convert to SVCD, second part:
Instructions to convert to CVD, first part:
Instructions to convert to CVD, second part:
Instructions to convert to DVD, first part:
Instructions to convert to DVD, second part:
Instructions to convert to AVI, first part:
Instructions to convert to AVI, second part:
--- Audio Information ---
MPEG Stream ID (e.g. "0xbd"):
MPEG VOB file Substream(e.g. "0x80"):
Audio Codec (e.g. "AC3"): 0x0162(Windows Media Audio 9 Professional, Microsoft, Inc.)
Audio Codec Status (e.g. "Codec Is Installed"): Codec(s) are Installed
Audio Sample Rate (Hz): 48000
Audio Bitrate(kbps): 175
Audio Bitrate Type ("CBR" or "VBR"):
Audio Channel Count (e.g. "2" for stereo): 2
MeteorRain@2004-09-21 22:01
我现在唯一的方法是用tmpgenc做1st-pass。
输入码率是23.976
xvid输出的时候不discard 1st-pass，音频关掉
这样输出一个avi是最高质量的，还得到一个.pass文件
最后用vdm打开avi压，用原来的pass文件做pass压2nd……
roytam1@2004-09-21 22:17
引用
最初由 MeteorRain 发布
我现在唯一的方法是用tmpgenc做1st-pass。
输入码率是23.976
xvid输出的时候不discard 1st-pass，音频关掉
这样输出一个avi是最高质量的，还得到一个.pass文件
最后用vdm打开avi压，用原来的pass文件做pass压2nd……
可是這樣做後影音不同步......
tct66@2004-09-22 00:05
引用
最初由 MeteorRain 发布
我现在唯一的方法是用tmpgenc做1st-pass。
输入码率是23.976
xvid输出的时候不discard 1st-pass，音频关掉
这样输出一个avi是最高质量的，还得到一个.pass文件
最后用vdm打开avi压，用原来的pass文件做pass压2nd……
這樣的壓縮損失是比較重的(暗場景馬賽克多一些),不如直接用TmpgEnc直接作1st/2nd pass
如果要內崁的話,用VFAPI將.tpr作成虛擬的avi
這樣可以用avs或VDM直接內崁
billms@2004-09-22 01:25
為何要轉成單fps的avi？
既然用avi-mux gui為何不mux成mkv？
roytam1@2004-09-22 07:06
引用
最初由 billms 发布
為何要轉成單fps的avi？
因為要加字幕
引用
最初由 billms 发布
既然用avi-mux gui為何不mux成mkv？
我只是用graphedt合成的
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