Multiplexing 16 kbps audio streams fails (0.2i)
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#8 Multiplexing 16 kbps audio streams fails (0.2i)
Using the reference SIEMENS mpeg multiplexer with a
toolame encoded file at 16 KHz / 16Kbps fails.
(tried only on Win32, don't know if it's a multiplexer
problem).
Does not happen with 32 KHz / 32 Kbps.
1) Encoding:
toolame.exe -s 16 -m m -b 16 test16.pcm test16.mpa
2) Multiplex:
mpeg2s test16.mpa test100cif.mpv final.mpg
***************************************************************
* MPEG1/SYSTEMS
Multiplexer *
* (C) Christoph Moar, 1994/1995 *
* moar@informatik.tu-muenchen.de
*
* Technical University of Munich *
* SIEMENS ZFE ST SN 11 / T SN
6 *
* *
* This program is free software. See the GNU General
Public *
* License in the file COPYING for more
details. *
* Release 1.1 (06.06.95) *
***************************************************************
File test16.mpa is a 11172-3 Audio stream.
File test100cif.mpv is a 11172-2 Video stream.
Scanning Video stream for access units information.
Got 465 picture headers. 99%
Done, stream bit offset 1877040.
+------------------ VIDEO STREAM INFORMATION ------------
-----+
Stream length : 234630
Sequence start : 1
Sequence end : 1
No. Pictures : 467
No. Groups : 40
No. I Frames : 40 avg. size 1729 bytes
No. P Frames : 117 avg. size 818 bytes
No. B Frames : 310 avg. size 224 bytes
No. D Frames : 0 avg. size 0 bytes
Horizontal size: 176
Vertical size : 144
Aspect ratio : 0.9157 CCIR601, 625 line
Picture rate : 25.000 frames/sec
Bit rate : 12500 bytes/sec ( 100000 bits/sec)
Computed rate : 13750 bytes/sec
Vbv buffer size: 40960 bytes
CSPF : 1
Continue processing (y/n) : y
Scanning Audio stream for access units information.
Error in MPEG stream at offset (bits) 13l: supposed
marker bit not found.
Logged In: YES
user_id=141181
A few people have reported that every now and then toolame
will encode totally stupid frames (which then show up as
noise on playback). Haven't tracked it down.