help me with virtualdub?
Reply #7 – 2010-01-07 08:32:17
@francesco: the correct strategy to video processing is: 1, know your input material (mediainfo will help some), example:[b]mediainfo video.mpg[/b] General Complete name : video.mpg Format : MPEG-PS File size : 13.5 MiB Duration : 21s 600ms Overall bit rate : 5 261 Kbps Video ID : 224 (0xE0) Format : MPEG Video Format version : Version 2 Format profile : Main@Main Format settings, Matrix : Default Duration : 21s 600ms Bit rate mode : Variable Bit rate : 4 668 Kbps Nominal bit rate : 6 200 Kbps Width : 720 pixels Height : 576 pixels Display aspect ratio : 4:3 Frame rate : 25.000 fps Standard : PAL Colorimetry : 4:2:0 Scan type : Interlaced Scan order : Top Field First Bits/(Pixel*Frame) : 0.450 Stream size : 12.0 MiB (89%) Audio ID : 192 (0xC0) Format : MPEG Audio Format version : Version 1 Format profile : Layer 2 Duration : 21s 600ms Bit rate mode : Constant Bit rate : 384 Kbps Channel(s) : 2 channels Sampling rate : 48.0 KHz Resolution : 16 bits Stream size : 1 012 KiB (7%) 2. devise a workflow for a specific format (more than one software utility will be needed), and no i wouldn't bother virtualdub with matroška or mp4, example: a. goal: to convert flv to avi b. mplayer decode flv to unc. avi -> use virtualdub and xvid codec to compress video -> use lame to encode audio -> use some muxer to mux both .. 3. know your output material (the thing you end-up with, again mediainfo will help here) p.s. there is NO magic allinone converter, and those that claim that will do that are better left uninstalled.