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View Full Version : svcd video&audio multiplexing


(buzz lightyear)
10th March 2002, 17:42
hi,
my problem is that *.mpg still miss the audio stream, after i try to multiplex audio and video with avi2mpg :confused:

okay here is the way of my tries:
start avi2mpg 1.24 beat 13 and -> start encoding -> settings

General Settings:
Multiplex Video
Multiplex Audio
start/stop/size options
0 / 0 / 0

Input Output Files:
Open VS -> my *.mpv endocded with cinecraft 2.5
Open AS -> my *.mp2 encoded with BeSweet (plays fine in Winamp)

Prgramm Stream Settings:
check SVCD and leave the defaults

now I start the process

the resulting *.mpg is still missing an audio stream
:scared:

Is there something wrong with my settings?
or
Is there an other, better way to multiplex audio & video
for my svcd?

thanx for help
greetings
buzz

P.S:
(log output)
Multiplexing: video and one audio stream
program stream type: SVCD with pulldown auto-detection
video file: p:\svlastd_temp\out\test.mpv
audio 1 file: p:\svlastd_temp\sound\f.mp2
program file: temp.mpg

Multiplexing video and audio:

Scanning video stream for a sequence header and pulldown type ...
no pulldown detected ...

Scanning video stream for pictures ...
Found 162447 picture headers.
Video stream information
Stream length : 1543324360
Total time (seconds) : 6497
Sequence start : 10947
Sequence end : 1
No. Pictures : 162447
No. Groups : 10947
No. I Frames : 10947 avg. size 27672 bytes
No. P Frames : 43545 avg. size 14251 bytes
No. B Frames : 107955 avg. size 5743 bytes
No. D Frames : 0 avg. size 0 bytes
Horizontal size : 480
Vertical size : 480
Aspect ratio : 0.6735
Picture rate : 25.000 frames/sec
Bit rate : 312500 bytes/sec (2500000 bits/sec)
Computed avg rate : 238750 bytes/sec (1910000 bits/sec)
Computed max rate : 361350 bytes/sec (2890800 bits/sec)
Vbv buffer size : 229376 bytes
CSPF : 0

Scanning audio stream for access units information
Found 1 audio frame headers.
MPEG audio stream information
Stream length : 103966464
Syncwords : 1
Frames : 1 size 0 bytes
Frames : 0 size 1 bytes
Layer : 3
CRC checksums : no
Bit rate : 16000 bytes/sec (128 kbit/sec)
Frequency : 48.0 kHz
Mode : 1 joint stereo
Mode extension : 2
Copyright bit : 0 no copyright
Original/Copy : 1 original
Emphasis : 0 none
NOTE: Mux rate may be too low for data rate, watch for PTS/DTS underflows.

Multiplexing information
Video stream data rate : 361350 bytes/sec (2890800 bits/sec)
Audio stream 1 data rate : 16000 bytes/sec (128000 bits/sec)
Total data rate : 348600 bytes/sec (2788800 bits/sec)

Multiplexing file temp.mpg

disturbed1
11th March 2002, 00:33
"Layer : 3 "

Sure it's an mp2?

"Mode extension : 2 "

This should be 0

"CRC checksums : no "

Checksums are always on in SVCD audio.

(buzz lightyear)
11th March 2002, 10:08
hmm don't know why
but my mp2 was a MPEG1 Layer 3 Audio File, now after another encoding run with BeSweet I have got a MPEG1 Layer 2
and everything is fine... :-)

thanx for the hints