Optimum QuEnc Settings for MPEG1

[rdecker]

I am trying to use QuEnc to create some MPEG1 files. Some of the source files are analog captures using Huffyuv @ 640x480 (colorspace: YUY2), while others are VOBs from DVDs. In either case, it appears that if the overall bitrate (video + audio) in the output file exceeds 1500 KBps then the output video gets "jerky" (the audio is ok). I know that MPEG1 files have a limited bitrate but I have some MPEG1 files that someone produced in Premiere that have an overall bitrate of ~2000 KBps. I wanted to make sure that my AviSynth script and my settings for QuEnc aren't causing the premature cut-off in overall bitrate. Does anyone have recommendations about a change in settings that might allow me to increase the maximum overall bitrate?


AviSynth Script:

SetMemoryMax(512)
video =AVISource("D:\Videos\testing.avi",audio=false)
video = ConvertToYV12(video)
video = ReduceBy2(video)
audio = WavSource("D:\Videos\testing.wav")
audio = Normalize(audio,0.98)
AudioDub(video,audio)


QuEnc Advance Options Settings:

Extreme & Slow Settings - unchecked
GOP Size - 12
Max B-Frames - 2
Interlaced Encoding - unchecked
Top Field First - unchecked
Pulldown - unchecked
Force Closed GOP - unchecked
Scene Detection - unchecked
Auto Max Bitrate - unchecked
4:3 Aspect Ratio - checked
Use QLB Matrix - checked
MPEG-2 Mux Profile - MPEG-1 System
Audio Codec - MP2
Audio Bitrate - 192

[Zarxrax]

Yes, I've been experiencing this same problem in QuEnc as well. Right now, if you need an mpeg-1 file higher than 1500kbps I would recommend a different encoder :\
But hopefully this problem will be resolved soon, because I know quenc could be a much better mpeg-1 encoder than tmpgenc :)

[leiming2006]

This is what I use,I think it's good:

SetMemoryMax(50)
a=directshowsource("aaa.avi",video=false)
v=avisource("aaa.avi",audio=false)
audiodub(a,v)
h=(Width*3/4-Height)/2
addborders(0,h,0,h)
changefps(25).Lanczos4Resize(336,276).addborders(8,4,8,8)
SSRC(44100)
converttoyv12()

QuEnc Advance Options Settings:

Extreme & Slow Settings - unchecked
GOP Size - 18
Max B-Frames - 2
Interlaced Encoding - unchecked
Top Field First - unchecked
Pulldown - unchecked
Force Closed GOP - unchecked
Scene Detection - checked
Auto Max Bitrate - unchecked
4:3 Aspect Ratio - checked
Use QLB Matrix - unchecked
MPEG-2 Mux Profile - VCD
Audio Codec - MP2
Audio Bitrate - 224