[MPlayer-users] BUG REPORT sound on 44.1Khz files is bad on my system with recent CVS's

Fri Dec 13 12:20:03 CET 2002

BUG REPORT

Sound on 44.1 khz files (mp3 or video) is bad
(scratched).
if i resample 44.1 files to 46, it's ok.
22khz; 46khz, 48khz, etc files play nice.

PII 333 224MB G200 sb16 soundcard
Linux Mandrake 9 
gcc version 3.2 (Mandrake Linux 9.0 3.2-1mdk)
2.4.20 #1 Sat Nov 30 19:25:29 WET 2002 i686 unknown
unknown GNU/Linux   ->  vanilla + preemptive patch (no
alsa)
libc 2.2.5
XFree86 Version 4.2.1 @ 800x600x16
GNU ld version 2.12.90.0.15 20020717
GNU assembler 2.12.90.0.15 20020717

NOTE: I always make a checkinstall, so i have lots of
0.9 pre (CVS) RPMS and one older
(CVS-020807-21:51-3.0.4) that i compiled for 
mandrake 8.2, but works on mandrake 9.

I tested this with lots of files. here is the output
of an mp3 file:

Bad sound with last weekend cvs - the file is "auto"
resampled to 44191hz:

MPlayer CVS-021206-13:56-3.2 (C) 2000-2002 Arpad
Gereoffy (see DOCS)

CPU: Intel Celeron Covington/Pentium II
Deschutes,Tonga/Pentium II Xeon (Family: 6, Stepping:
1)
CPUflags:  MMX: 1 MMX2: 0 3DNow: 0 3DNow2: 0 SSE: 0
SSE2: 0
Compiled for x86 CPU with extensions: MMX

Reading /home/andyrock/.mplayer/codecs.conf: can't
open '/home/andyrock/.mplayer/codecs.conf': No such
file or directory
Reading /usr/local/etc/mplayer/codecs.conf: 49 audio &
123 video codecs
Font /home/andyrock/.mplayer/font/font.desc loaded
successfully! (206 chars)
Linux RTC init error in ioctl (rtc_irqp_set 1024):
Permission denied
Try adding "echo 1024 >
/proc/sys/dev/rtc/max-user-freq" to your system
startup scripts.
Using usleep() timing
Can't open input config file
/home/andyrock/.mplayer/input.conf : No such file or
directory
Can't open input config file
/usr/local/etc/mplayer/input.conf : No such file or
directory
Falling back on default (hardcoded) input config

Playing /mnt/fat/musica/skunk anansie/Skunk Anansie -
And this is nothing that I thougth I had.mp3
Detected audio file!
Clip info:
 Title: Skunk Anansie - And this is no
 Artist: skunk anansie
 Album:
 Year:
 Comment:
 Genre: Unknown
==========================================================================
Opening audio decoder: [mp3lib] MPEG layer-2, layer-3
AUDIO: 44100 Hz, 2 ch, 16 bit (0x10), ratio:
16000->176400 (128.0 kbit)
Selected audio codec: [mp3] afm:mp3lib (mp3lib MPEG
layer-2, layer-3)
==========================================================================
AO: [oss] 44100Hz 2ch Signed 16-bit (Little-Endian)
Building audio filter chain for 44100Hz/2ch/16bit ->
44191Hz/2ch/16bit...
Video: no video!!!
Start playing...

Good sound with same CVS: mplayer -aop
list=resample:fout=46000 file.mp3 :

MPlayer CVS-021206-13:56-3.2 (C) 2000-2002 Arpad
Gereoffy (see DOCS)

CPU: Intel Celeron Covington/Pentium II
Deschutes,Tonga/Pentium II Xeon (Family: 6, Stepping:
1)
CPUflags:  MMX: 1 MMX2: 0 3DNow: 0 3DNow2: 0 SSE: 0
SSE2: 0
Compiled for x86 CPU with extensions: MMX

Reading /home/andyrock/.mplayer/codecs.conf: can't
open '/home/andyrock/.mplayer/codecs.conf': No such
file or directory
Reading /usr/local/etc/mplayer/codecs.conf: 49 audio &
123 video codecs
Font /home/andyrock/.mplayer/font/font.desc loaded
successfully! (206 chars)
Linux RTC init error in ioctl (rtc_irqp_set 1024):
Permission denied
Try adding "echo 1024 >
/proc/sys/dev/rtc/max-user-freq" to your system
startup scripts.
Using usleep() timing
Can't open input config file
/home/andyrock/.mplayer/input.conf : No such file or
directory
Can't open input config file
/usr/local/etc/mplayer/input.conf : No such file or
directory
Falling back on default (hardcoded) input config

Playing /mnt/fat/musica/skunk anansie/Skunk Anansie -
And this is nothing that I thougth I had.mp3
Detected audio file!
Clip info:
 Title: Skunk Anansie - And this is no
 Artist: skunk anansie
 Album:
 Year:
 Comment:
 Genre: Unknown
==========================================================================
Opening audio decoder: [mp3lib] MPEG layer-2, layer-3
AUDIO: 44100 Hz, 2 ch, 16 bit (0x10), ratio:
16000->176400 (128.0 kbit)
Selected audio codec: [mp3] afm:mp3lib (mp3lib MPEG
layer-2, layer-3)
==========================================================================
[pl_resample] Up=128, Down=123, True fout=45892.682927
[pl_resample] Up=128, Down=123, True fout=45892.682927
AO: [plugin] 44100Hz 2ch Signed 16-bit (Little-Endian)
Building audio filter chain for 44100Hz/2ch/16bit ->
46790Hz/2ch/16bit...
Video: no video!!!
Start playing...

good sound with my old cvs rpm compiled for mandrake
8.2 (gcc 3.0.4) but running on the same system:

MPlayer CVS-020807-21:51-3.0.4 (C) 2000-2002 Arpad
Gereoffy (see DOCS!)

CPU: Intel Celeron Covington/Pentium II
Deschutes,Tonga/Pentium II Xeon (Family: 6, Stepping:
1)
CPUflags:  MMX: 1 MMX2: 0 3DNow: 0 3DNow2: 0 SSE: 0
SSE2: 0
Compiled for x86 CPU with extensions: MMX

Reading /home/andyrock/.mplayer/codecs.conf: can't
open '/home/andyrock/.mplayer/codecs.conf': No such
file or directory
Reading /usr/local/share/mplayer/codecs.conf: 38 audio
& 104 video codecs
Font /home/andyrock/.mplayer/font/font.desc loaded
successfully! (206 chars)
Linux RTC init error in ioctl (rtc_pie_on): Permission
denied
Using usleep() timing
Can't open input config file
/home/andyrock/.mplayer/input.conf : No such file or
directory
Can't open input config file
/usr/local/share/mplayer/input.conf : No such file or
directory
Falling back on default (hardcoded) input config

Playing /mnt/fat/musica/skunk anansie/Skunk Anansie -
And this is nothing that I thougth I had.mp3
Detected audio file
Clip info:
 Title: Skunk Anansie - And this is no
 Artist: skunk anansie
 Album:
 Year:
 Comment:
 Genre: Unknown
Detected audio codec: [mp3] afm:1 (mp3lib MPEG
layer-2, layer-3)
Opening audio decoder: [mp3lib] MPEG layer-2, layer-3
AUDIO: 44100 Hz, 2 ch, sfmt: 0x10 (2 bps), ratio:
16000->176400 (128.0 kbit)
AO: [oss] 44100Hz 2ch Signed 16-bit (Little-Endian)
WARNING! Your soundcard does NOT support 44100 Hz
samplerate! A-V sync problems or wrong speed are
possible! Try with '-aop list=resample:fout=44191'
Video: no video!!!
Start playing...

with this old cvs, even if i resample the file to
44191, it plays nice!

so, this test let me think that there is a bug in the
resampler code... any file resampled to 44191hz play
with "scherehrhrhehrhrehrhe" background sound...

i hope that this info helps for anything!

Andre Lourenco

=====
"On the side of the software box, in the 'System Requirements' section, it said 'Requires Windows 95 or better'. So I installed Linux."

----------------------------------
- andrelourenco at yahoo.com        -
- http://andyrock.no.sapo.pt     -
- http://linuxinside.com.sapo.pt -
----------------------------------

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