mplex sync is not working correctly

[santner]

Hello all: I am trying to create an svcd and I am having serious sync issues. I run Linux, and have captured using dvgrab, converted using transcode and now I am trying to combine the streams for burning using mplex. Everything is fine, except that I can not adjust the time difference between the audio and video using the -O option like the manpage states. Here is the command I am using as well as the output:

mplex -f 5 -b 230 -O 200 -o test1.mpg test.m2v test.mpa
INFO: [mplex] mplex version 2.2.1 ($Date: 2002/02/04 19:06:14 $)
INFO: [mplex] File test.m2v looks like an MPEG Video stream.
INFO: [mplex] File test.mpa looks like an MPEG Audio stream.
INFO: [mplex] Found 1 video streams 1 MPEG audio streams and 0 AC3 streams
INFO: [mplex] Selecting SVCD output profile
INFO: [mplex] Scanning for header info: Video stream e0 (test.m2v)
INFO: [mplex] VIDEO STREAM: e0
INFO: [mplex] Frame width : 480
INFO: [mplex] Frame height : 480
INFO: [mplex] Aspect ratio : 4:3 display
INFO: [mplex] Picture rate : 29.970 frames/sec
INFO: [mplex] Bit rate : 2500000 bits/sec
INFO: [mplex] Vbv buffer size : 229376 bytes
INFO: [mplex] CSPF : 0
INFO: [mplex] Scanning for header info: Audio stream c0 (test.mpa)
INFO: [mplex] AUDIO STREAM:
INFO: [mplex] Audio version : 1.0
INFO: [mplex] Layer : 3
INFO: [mplex] CRC checksums : no
INFO: [mplex] Bit rate : 16384 bytes/sec (128 kbit/sec)
INFO: [mplex] Frequency : 44100 Hz
INFO: [mplex] Mode : 0 stereo
INFO: [mplex] Mode extension : 0
INFO: [mplex] Copyright bit : 0 no copyright
INFO: [mplex] Original/Copy : 0 copy
INFO: [mplex] Emphasis : 0 none
INFO: [mplex] SYSTEMS/PROGRAM stream:
INFO: [mplex] rough-guess multiplexed stream data rate : 2680400
INFO: [mplex] Setting best-guess data rate.
INFO: [mplex] Sectors = 78 Video delay = 52376 Audio delay = 48692
INFO: [mplex] New sequence commences...
INFO: [mplex] Video e0: buf= 235520 frame=000000 sector=00000000
INFO: [mplex] Audio c0: buf= 4096 frame=000000 sector=00000000
INFO: [mplex] Scanned to end AU 62130
INFO: [mplex] STREAM e0 completed @ 62130.
INFO: [mplex] STREAM c0 completed @ 79360.
INFO: [mplex] Multiplex completion at SCR=186608425.
INFO: [mplex] Video e0: buf= 158764 frame=062130 sector=00275517
INFO: [mplex] Audio c0: buf= 753 frame=079360 sector=00014447
INFO: [mplex] VIDEO_STATISTICS: e0
INFO: [mplex] Video Stream length: 78693456 bytes
INFO: [mplex] Sequence headers: 3485
INFO: [mplex] Sequence ends : 1
INFO: [mplex] No. Pictures : 62131
INFO: [mplex] No. Groups : 3485
INFO: [mplex] No. I Frames : 3485 avg. size 18287 bytes
INFO: [mplex] No. P Frames : 17259 avg. size 10660 bytes
INFO: [mplex] No. B Frames : 41387 avg. size 9225 bytes
INFO: [mplex] No. D Frames : 0 avg. size 0 bytes
INFO: [mplex] Average bit-rate : 2429200 bits/sec
INFO: [mplex] Peak bit-rate : 2750400 bits/sec
INFO: [mplex] BUFFERING min 15 Buf max 118252
INFO: [mplex] AUDIO_STATISTICS: c0
INFO: [mplex] Audio stream length 33169659 bytes.
INFO: [mplex] Syncwords : 79361
INFO: [mplex] Frames : 3239 padded
INFO: [mplex] Frames : 76122 unpadded
INFO: [mplex] BUFFERING min 15 Buf max 432
INFO: [mplex]
INFO: [mplex] MUX STATUS: no under-runs detected.

Everything seems fine to me, however there is no difference in the mplexed signal than if I didn't try to change the syncronization at all. Any help would be greatly appreciated, thanks

Shane

[courtrrb]

Yes I found that to be true as of latley. I use kavi2svcd to set the mplex options for me. It also has an option for another program to mplex the streams back together(Can't rember which one I'am work right now). This one work when the one from mpjeg tolls dosn't.