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View Full Version : x264 multipass doesnt work for me!s.o.s!


papillonn
22nd November 2005, 12:13
i encoded my video by reading this guide
after all i got the .avi the sound was ok but there was not video,just a black screen in winamp and no screen in vlc player,after this bad encoded experience,i encoded the .mpg by divx converter,i just drop .mpg to on it and i got the working avi,but i want to use x264 and i cant get one step about multipass,could you tel me pls,why only i get audio but not video?please...
i forgot to add,when i use single pass,x264 is working too

1. Download and install the latest x264 revision from Sharktooth, bob0r or celtic_druid
2. Start VirtualDub.
3. Go to menu: "File" ->"Open video file" and select your video or avs script or simply
drag and drop it into VirtualDub. This will open the video you want to encode.
4. Go to menu: "Video" ->"Compression", then click "x264 - H264/AVC encoder", then click
"Configure" button.
5. In the "Bitrate" tab from the dropdown list select "Multipass - First pass"
(instead of the default "Single Pass Quantizer").
6. In the same "Bitrate" tab set "Target bitrate" to whatever you like or leave it
as it is (800). Note: The higher the bitrate the better the quality, the larger
the resulting file.Don't go above 1500 kpbs, unless you encode some HD (high definition)
video. Your average DVD is not HD!
7. (optional) In the "MBs&Frames" tab click "8x8 Transform", then set "Max ref Frame" to
3 or 5 (the default is 1). The higher the "Max ref Frame", the slower the encoding and
slightly better the quality. Don't change anything in the "Rate Control" and "More" tabs
unless you know what you're doing.
8. Click "Ok" to close the "x264 configuration", then click "Ok" again to get back to the
VirtualDub main window.
9. 9. In the menu: "File" -> "Save as Avi" specify folder and file name (for example
"a.avi", or only "a"), then check "Don't run this job now; add it to job control so
I can run it in batch mode", then click "Save" button" (note: nothing will happen and
you'll simply get back to the VirtualDub main window)
10. Go to Menu: "Video" -> "Compression" click "x264 - H264/AVC encoder", then click
"Configure" button (same as step 3).
11. In the "Bitrate" tab: from the dropdown list select "Multipass - Nth Pass"
(don't change anything else like the "Target Bitrate" or the other options)
12.12. Click "Ok" to close the "x264 configuration", then click "Ok" again to
get back to the VirtualDub main window (same as step 7)
13. Go to menu: "File" -> "Save as Avi" then you'll see the same file name
(for example "a.avi", or only "a"), so don't change it and just check again
"Don't run this job now; add it to job control so I can run it in batch mode",
then click "Save" button". Note: nothing will happen and you'll simply get back to the
main VirtualDub window.
14.14. Go to menu: "File" -> "Job Control" and click the "Start" button. The encoding will start.
15.(optional) To monitor the encoding progress, just go back to the main VirtualDub window,
then in menu "Options" select "Show Status window". Now wait until the encode is finished.
That's all.

charleski
22nd November 2005, 15:31
Open the file in VLC and select View->Stream and Media Info. Tell us what it reports there.

papillonn
23rd November 2005, 11:18
first of all thanks you

1)when i do just multipass 1 pass ,there is audio ok but there is not any video
this condition is not special for h264,when i use divx 6 codec and choose multipass 1 pass by virtualdub it occurs again
here is the .jpg of vlc player stream ,but there is another problem about size of the file,after multi 1 pass the size is same,but when i use divx converter home theatre mod (drag and drop) 6.0 the size is 15 mb,what is the point?

http://img513.imageshack.us/img513/8357/doom97lk.jpg

2)when i do multipass 1 pass and after multipass Nth (like guide said) in same time by virtualdubmod,there are audio and video,everything ok,but the size of the video is bigger than it's .mpg format
.mpg format's size is 5O mb but after h264 size is 70 mb as i say before when i use divx converter 6.0 size becomes 15-20 mb

i am waiting your help.