Try StreamFab Downloader and download from Netflix, Amazon, Youtube! Or Try DVDFab and copy Blu-rays!
+ Reply to Thread
Results 31 to 39 of 39
Thread
-
-
If I had to guess (I've never used it) xvid4PSP probably uses a decoding method which indexes the video when it's opened and/or extracts the audio as well. Its fairly normal for AVISynth based programs. They'd probably use DGIndex for mpeg video and ffmsindex etc for other file types. It's generally not too frustrating if you're opening and encoding one file at a time, although for large source files the process can sometimes take a few minutes. When programs can do batch encoding, sometimes opening a large number of files at once requires a considerable wait while they're all indexed, which can be fairly annoying.
Does xvid4PSP create any temp files after it's opened a video? If the audio stream is one of them, that'd mean xvid4PSP has extracted it.
MeGUI generally does the same indexing/extracting (it depends on the chosen decoding method). Fortunately in batch mode it doesn't make you wait (I don't think, but I've rarely used batch mode). I think it lets you set up the batch encoding job and then it indexes each file as the encoding progresses.
If a program's clever enough and you've already opened a video, when you open the same one again it'll use any existing temp files rather than go through the process again, or it may let you open the previously created index file instead of the video itself.
I'm not sure why the rest of the program would feel sluggish. If it's mainly when previewing video then it could be due to filtering. ie QTGMC. Often if I'm doing any editing or experimenting with cropping/resizing etc, I'll get MeGUI to add Yadif de-interlacing to the script (either full frame or half frame de-interlacing), then when I've finished I'll replace the Yadif de-interlacing with QTGMC. That way I can still preview a de-interlaced version of the video but navigating through it isn't an exercise in frustration.
I do agree, the reason for questioning someone's preferences are fairly subjective, but often someone's preferred program isn't used by anyone else in the thread so it's not always clear whether it's the reason for a particular workflow.
Anyway... I'm not trying to start an argument over it. Just point out 99% of the time the motive for asking questions is a good one. -
muffinman123Guest
somehow I managed to make virtualdub load the videos without green screen again, but I have no idea what I did.
I have both ffdshow and lav codecs installed, and I thought they were outdated so I reinstalled both of them. still nothing.
so I checked them to see which one was used to decode huffyuv, and I saw that lav was used. so I disabled it in lav and switched to ffdshow to decode huffyuv, and then I can see videos loading properly.
but the mystery happens when I disable both ffdshow and lav decoder, and I can now still load huffyuv videos into virtualdub successfully.
so my question is how do I find out which decoder is currently being used to decode a video? is it in the registry?
mediainfo for the video I 1st created with virtualdub
General
Complete name :
Format : AVI
Format/Info : Audio Video Interleave
File size : 1.76 GiB
Duration : 3mn 44s
Overall bit rate : 67.5 Mbps
Video
ID : 0
Format : Huffman
Codec ID : HFYU
Duration : 3mn 44s
Bit rate : 66.1 Mbps
Width : 720 pixels
Height : 480 pixels
Display aspect ratio : 3:2
Frame rate : 29.970 fps
Standard : NTSC
Color space : YUV
Chroma subsampling : 4:2:2
Bit depth : 8 bits
Bits/(Pixel*Frame) : 6.379
Stream size : 1.73 GiB (98%)
General
Complete name :
Format : AVI
Format/Info : Audio Video Interleave
File size : 56.2 MiB
Duration : 7s 908ms
Overall bit rate : 59.6 Mbps
Writing application : VirtualDubMod 1.5.10.3 | www.virtualdub-fr.org || (build 2550/release)
Writing library : VirtualDubMod build 2550/release
Video
ID : 0
Format : Huffman
Codec ID : HFYU
Duration : 7s 908ms
Bit rate : 59.4 Mbps
Width : 720 pixels
Height : 480 pixels
Display aspect ratio : 3:2
Frame rate : 29.970 fps
Standard : NTSC
Bits/(Pixel*Frame) : 5.737
Stream size : 56.0 MiB (100%) -
VirtualDub may tell you. After opening the video select File -> File Information.
There are several variations of HuffYUV, not compatible with each other. Hence the problems you're seeing. -
VirtualDub uses Video For Windows codecs. I didn't think LAV installed any. ffdshow has two decoder configurations. The standard "Video Decoder Configuration" (DirectShow) and the "VFW Configuration". Are you using the latter?
-
There's two different shortcuts in the start menu, if the VFW option was included when installing. I can't remember but you may be able to choose not to. The "VFW Configuration" has Encoder and Decoder tabs and the Window name will probably be "ffdshow video encoder configuration". The "ffdshow video decoder configuration" is just DirectShow decoders.
VFW:
DirectShow:
Last edited by hello_hello; 14th Aug 2013 at 15:11.
-
muffinman123Guest
ah it's just same thing in standalones or in tabs, so that's what it is, didn't know.
Similar Threads
-
Why/when to use codec friendly sizing in the VDub resize filter?
By brassplyer in forum EditingReplies: 2Last Post: 25th Oct 2012, 11:07 -
MPC-HC Transform Filter deinterlace question, searched form
By gOdiSOnyOuRsIDe in forum Software PlayingReplies: 3Last Post: 6th Mar 2012, 00:58 -
VirtualDub Deinterlace Filter yadif vs blend
By kreg in forum Capturing and VCRReplies: 1Last Post: 22nd Jul 2011, 13:42 -
Deinterlace filter for mencoder pp=lb not giving me what I need
By M3mbr4n3 in forum Video ConversionReplies: 3Last Post: 12th Apr 2011, 15:44 -
Weird problem when using deinterlace filter from VirtualdubMod...
By artyjeffrey in forum RestorationReplies: 12Last Post: 22nd Apr 2010, 11:11