View Full Version : meGUI failed interlace detection, how do i determine it?
ExperimentalAnimations
7th November 2011, 06:01
I followed the guide on interlace detection (http://avisynth.org/mediawiki/Interlace_detection) for a film source mpeg2 dvd (babysnakes) that i can never get to sync, in which meGUI returned this script that gives me a 17fps video:
DirectShowSource("D:\Movies\BabySnakes\Merge.mpeg", fps=29.970, audio=true, convertfps=true).AssumeFPS(30000,1001)
LoadPlugin("C:\Users\Workstation\Desktop\MeGUI_2050_x86\tools\avisynth_plugin\TIVTC.dll")
TDecimate(cycleR=1)
#crop
#resize
#denoise
Using Info() in vdub claims it as a 29.97 progressive, using separatefields() doesnt show any jerky motion, using dgindex with either honor and ignore pulldown flags selected gives this:
Stream Type: MPEG2 Program
Profile: main@main
Frame Size: 720x480
Display Size: [not specified]
Aspect Ratio: 4:3 [2]
Frame Rate: 29.970030 fps
Video Type: Film 66.32%
Frame Type: Interlaced
Coding Type: B
Colorimetry: BT.470-2 B,G*
Frame Structure: Frame
Field Order: Top
Coded Number: 3106
Playback Number: 3619
Frame Repeats: 0
Field Repeats: 1026
VOB ID: 1
Cell ID: 1
Bitrate: 5.607 Mbps
Bitrate (Avg): 5.013 Mbps
Bitrate (Max): 6.148 Mbps
Audio Stream: 81: AC3 2/0 192
Timestamp: 0:02:00
Elapsed: 0:02:00
Remain: 2:41:22
FPS: 29.97
Info:
Ive also tried the ivtc plugin in vdub which doesnt work, the video is always faster than the audio and desyncs immediately. I'd upload a sample of the mpeg but i dont know of any way of breaking off a piece without encoding it into something else.
Virtualdubmod
7th November 2011, 06:29
Make a sample clip about 10 - 25 sec and post that for getting a better response.
ExperimentalAnimations
8th November 2011, 02:32
I already said i dont know of any way of making a sample without re-encoding it, which would defeat the purpose of making a sample.
What really frustrates me about this is that mplayer plays it fine without any combing or sync issues, if there was only some way of capturing the output.
Didée
8th November 2011, 02:42
dont know of any way of making a sample without re-encoding it
- Open mpeg in DGIndex
- Select a range via keys "[" and "]"
- Choose "File > Save Project and Demux Video"
- End up with an *.m2v sample file to upload
Virtualdubmod
8th November 2011, 15:01
I did mention how to make sample clip, but it was removed regarding spam.
Guest
8th November 2011, 19:29
You can also just use any binary splitter, such as DGSplit.
ExperimentalAnimations
8th November 2011, 19:54
http://www.sendspace.com/file/r6kacd
Thats about a minute, 32mb total.
ExperimentalAnimations
10th November 2011, 03:27
Well i did a video capture of mplayers output using camtasia which worked well until it hit a snag halfway through which desync'd the whole thing. I'd edit out the duplicate frames but i have no idea which duplicates are part of the film and which are not. Is there no way to convert mpeg2 footage without it changing the videos length?
poisondeathray
10th November 2011, 03:54
Doesn't seem that atypical. Just a constant AV delay. Normally you would enter the value reported by DGIndex for delayaudio (it's written into the audio filename), but for some reason it's not quite right
You can preview your avs scripts and use +/- keys in a media player to figure out the value of the delay (shift audio realtive to video). I roughly approximated it to be 150ms here
You mentioned something about glitches: if your original DVD has glitches, you may have to process your video in segments with different delays for each segment (e.g. divide up using trims and join using aligned splice). If you are not re-encoding the audio , you can use delaycut or enter the AV delay during muxing instead of including audio in the script
MPEG2Source("Merge.demuxed.d2v")
AssumeBFF()
TFM()
TDecimate()
vid=last
aud=FFAudioSource("Merge T81 2_0ch 192Kbps DELAY -83ms.ac3")
AudioDub(vid,aud)
DelayAudio(0.15)
xvid/mp3 sample
http://www.mediafire.com/?e28uqtu9xev62u6
Here is a guide from neuron to get you started, instead of relying on some autoanalysis which can make mistakes
http://neuron2.net/faq.html#analysis
ExperimentalAnimations
10th November 2011, 22:29
I tried the guide and vdub said theres no function named mpeg2source. Tried directshowsource with separate fields as before and it appears to be progressive video according to the guide, but thats obviously not true as framing through it normally in vdub reveals sporadic combing.
Every program is giving me different frame rates for it so i dont know what to do. Does anyone here have any clue how to determine what this is?
ExperimentalAnimations
10th November 2011, 22:52
Vdub speeds up the footage if i output it at 29.97, which is what it claims it is, and it slows it down if i output at 24fps. Mplayer also claims its 29.97 but then plays it at 24fps. Framing through it in mplayer shows that combing is once again completely random, sometimes not appearing for up to a minute then showing a few frames at most.
poisondeathray
10th November 2011, 22:53
I tried the guide and vdub said theres no function named mpeg2source. Tried directshowsource with separate fields as before and it appears to be progressive video according to the guide, but thats obviously not true as framing through it normally in vdub reveals sporadic combing.
Every program is giving me different frame rates for it so i dont know what to do. Does anyone here have any clue how to determine what this is?
Place dgdecode.dll in the avisynth plugins folder or load it manually with LoadPlugin()
There are instructions in the dgmpgdec package, read the "quickstart.html" guide
ExperimentalAnimations
13th November 2011, 01:05
nevermind, ill just download it from somewhere else. Thanks for nothing.
manono
13th November 2011, 07:50
nevermind, ill just download it from somewhere else. Thanks for nothing.
'Thanks for nothing', when pdr went out of his way to try and help and you weren't willing to meet him even halfway? Then you promote warez by saying you'll download copyrighted material?
Maybe you had better reread our rules, particularly rules 4 and 6:
http://forum.doom9.org/forum-rules.htm
Closed and struck twice.
vBulletin® v3.8.11, Copyright ©2000-2025, vBulletin Solutions Inc.