Problems about merging two source files in MeGUI

[beycan]

I'm trying to merge two videos with FFVideoSource in MeGUI.
INTRO: a 10 second intro video, and
SOURCE: main source video into
RESULT: output video.

RESULT = INTRO + SOURCE

The given script below works when I use two SOURCE videos, SOURCE1 and SOURCE2.

FFIndex(SOURCE1)
V1 = FFVideoSource(SOURCE1)
A1 = FFAudioSource(SOURCE1)
R1 = AudioDub(V1, A1)

FFIndex(SOURCE2)
V2 = FFVideoSource(SOURCE2)
A2 = FFAudioSource(SOURCE2)
R2 = AudioDub(V2, A2)

RESULT = R1 + R2

However, when I use one of my INTRO videos (that I have created) instead of the downloaded SOURCE files, the program gives this error:

MeGUI encountered a fatal error and may not be able to proceed.
Reason: Object reference not set to an instance of an object.

I try several options for both source files such as

FFVideoSource(..., fpsnum=24000, fpsden=1001, width = 1280, height = 720).AssumeFPS(24000,1001)

but cannot handle it.

Is it due to some encoding options that can not be specified in FFVideoSource?
I have attached the MediaInfo of the INTRO source that can not be merged with other SOURCE files.
Any suggestions?

General
Complete name                            : C:\intro-1280x720.mp4
Format                                   : MPEG-4
Format profile                           : Base Media
Codec ID                                 : isom
File size                                : 4.45 MiB
Duration                                 : 12s 833ms
Overall bit rate                         : 2 908 Kbps

Video
ID                                       : 1
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : High@L3.1
Format settings, CABAC                   : Yes
Format settings, ReFrames                : 4 frames
Codec ID                                 : avc1
Codec ID/Info                            : Advanced Video Coding
Duration                                 : 12s 833ms
Bit rate                                 : 2 500 Kbps
Maximum bit rate                         : 4 881 Kbps
Width                                    : 1 280 pixels
Height                                   : 720 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Constant
Frame rate                               : 30.000 fps
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Bits/(Pixel*Frame)                       : 0.090
Stream size                              : 3.86 MiB (87%)
Title                                    : 264#trackID=1:fps=30@GPAC0.5.1-DEV-rev4283
Writing library                          : x264 core 133 r2334 a3ac64b
Encoding settings                        : cabac=1 / ref=3 / deblock=1:-1:-1 / analyse=0x3:0x113 / me=hex / subme=7 / psy=1 / psy_rd=1.00:0.15 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-3 / threads=9 / lookahead_threads=1 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=1 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=2 / keyint=300 / keyint_min=30 / scenecut=40 / intra_refresh=0 / rc_lookahead=40 / rc=2pass / mbtree=1 / bitrate=2500 / ratetol=1.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / ip_ratio=1.40 / aq=1:1.00

Audio
ID                                       : 2
Format                                   : AC-3
Format/Info                              : Audio Coding 3
Mode extension                           : CM (complete main)
Format settings, Endianness              : Big
Codec ID                                 : ac-3
Duration                                 : 12s 800ms
Bit rate mode                            : Constant
Bit rate                                 : 384 Kbps
Channel(s)                               : 2 channels
Channel positions                        : Front: L R
Sampling rate                            : 48.0 KHz
Bit depth                                : 16 bits
Compression mode                         : Lossy
Stream size                              : 600 KiB (13%)
Title                                    : ac3#trackID=1@GPAC0.5.1-DEV-rev4283

[beycan]

I have attached the output of the MeGUI log file. Still waiting for help

-[Information] MediaInfo
-[Error] [1.12.2013 06:48:24] Exception message: Object reference not set to an instance of an object.
-[NoImage]    at MeGUI.MediaInfoFile.CorrectSourceInformation(MediaInfo& oInfo, String strFile, LogItem infoLog, Int32 iPGCNumber)
-[NoImage]    at MeGUI.MediaInfoFile.GetSourceInformation(String file, LogItem oLog, Int32 iPGCNumber)
-[Error] [1.12.2013 06:48:24] Stacktrace
-[Error] [1.12.2013 06:48:24] Inner exception: null
--[Error] [1.12.2013 06:48:24] MediaInfo - Unhandled Error
-[Error] Unhandled error

[poisondeathray]

Post the full avs script

Can you preview the script in vdub or avspmod ? Any error messages ?

Did you try updating megui off the development server ?

Post the mediainfo for the other section

[beycan]

The full script is given below:

I="C:\INPUT\intro.mp4"
V="C:\INPUT\downloaded.mkv"

LoadPlugin("C:\Users\Administrator\Desktop\MeGUI_2356_x86\tools\avs\directshowsource.dll")
LoadPlugin("C:\Users\Administrator\Desktop\MeGUI_2356_x86\tools\ffms\ffms2.dll")

FFIndex(I)
V1 = FFVideoSource(I, fpsnum=25000, fpsden=1000, width = 1280, height = 720)
A1 = FFAudioSource(I).ResampleAudio(44100)
R1 = AudioDubex(V1, A1)

FFIndex(V)
V2 = FFVideoSource(V, fpsnum=25000, fpsden=1000, width = 1280, height = 720)
A2 = FFAudioSource(V).ResampleAudio(44100)
R2 = AudioDubex(V2, A2)

R1 + R2

ConvertToYV12()

I cannot run my scripts with VirtualDub, may be it is only a video player?
When I run the script with AvsPmod, it produces an error:

Splice: The number of audio channels doesn't match.

I'm searching for it, but cannot find any solution yet.

[beycan]

Thank you again poisondeathray, updating MeGUI produces the same errors now.
I have solved the problem as given below:

AUDIO = FFAudioSource(SOURCE).ResampleAudio(44100)
LEFT = GetChannel(AUDIO , 1) 
RIGHT = GetChannel(AUDIO , 2)  
BOTH = mergechannels(LEFT, RIGHT)  
R = AudioDubex(VIDEO, BOTH)