[Mplayer-users] Clicking/pausing/generally bad sound
Emma Tonkin
etonkin at tirin.openworld.co.uk
Wed Apr 25 02:46:30 CEST 2001
Hey again,
I had a go at mtrr, and discovered that already included in /proc/mtrr was
reg00: base=0x00000000 ( 0MB), size= 64MB: write-back, count=1
reg01: base=0x04000000 ( 64MB), size= 32MB: write-back, count=1
reg02: base=0x06000000 ( 96MB), size= 16MB: write-back, count=1
reg03: base=0x07000000 ( 112MB), size= 8MB: write-back, count=1
...this lot...
but anyway I added a line to see what it'd do... but I'm not at all sure I
got it right, as it appeared to make no difference whatsoever (and also
appeared with completely strange memory values once it was in /proc/, of
the order of gigabytes). I suspect the situation may be complicated by
the fact that this system uses shared video memory?
Is there any way I can sort of increase the priority of the mp3 decoding
compared to the video decoding?
To answer the percentage question, here is the output for a short segment
of avi; I'm not sure what the second percentage is supposed to be but it
looks fairly immense to me ;-)
Incidentally, I've changed the buffer size in this example to 800000 or
whatever it happens to be, purely for experimental purposes. As standard,
it comes out to 25088 bytes on this avi...
MPlayer 0.11cvs-010424-05:45 (C) 2000-2001 Arpad Gereoffy
<arpi at thot.banki.hu>
Reading config file: /etc/mplayer.conf
Reading config file: /root/.mplayer/config
Reading /root/.mplayer/codecs.conf: 15 audio & 26 video codecs
font: can't open file: /root/.mplayer/font/font.desc
Detected AVI file format!
==> Found video stream: 0
==> Found audio stream: 1
VIDEO: [DIV3] 720x576 24bpp 25.00 fps 922.7 kbps (112.6 kbyte/s)
[V] filefmt:3 fourcc:0x33564944 size:720x576 fps:25.00 ftime:=0.0400
Found audio codec: [mp3acm] drv:4 (MPEG layer-3)
Loading DLL: /usr/lib/win32/l3codeca.acm OK
AUDIO: samplerate=44100 channels=2 bps=2
Found video codec: [divxds] drv:4 (DivX ;-) (MS MPEG-4 v3))
Loading DLL: /usr/lib/win32/divx_c32.ax OK
DivX setting result = 0
VO: [fbdev] 720x576 => 720x576 fs BGR16
Audio buffer size: 800000 bytes, delay: 4.535s
Start playing...
Initial PTS delay: -0.375 sec (calculated: -4.495)
A: 0.8 V: 0.8 A-V: -0.000 ct: 0.014 21 6% 28% 27.6%
A: 1.7 V: 1.6 A-V: 0.016 ct: 0.036 36 20% 28% 14.0%
A: 2.4 V: 2.4 A-V: 0.032 ct: 0.052 56 41% 28% 9.9%
A: 3.2 V: 3.2 A-V: 0.032 ct: 0.078 76 48% 29% 7.8%
A: 4.1 V: 4.8 A-V: 0.024 ct: 0.072 96 54% 29% 6.6%
A: 4.8 V: 4.6 A-V: -0.024 ct: 0.086 116 55% 29% 5.9%
A: 5.4 V: 5.4 A-V: 0.024 ct: 0.088 136 57% 28% 5.4%
A: 6.3 V: 6.2 A-V: -0.024 ct: 0.078 156 58% 29% 5.1%
A: 7.0 V: 7.0 A-V: -0.008 ct: 0.092 176 58% 30% 4.8%
A: 7.9 V: 7.8 A-V: 0.008 ct: 0.074 191 58% 31% 4.5%
A: 8.6 V: 8.6 A-V: 0.024 ct: 0.066 211 58% 30% 4.3%
A: 9.4 V: 9.4 A-V: 0.016 ct: 0.060 231 58% 30% 4.1%
A: 10.2 V: 10.2 A-V: -0.024 ct: 0.058 251 58% 30% 4.0%
A: 10.9 V: 10.8 A-V: 0.024 ct: 0.076 271 57% 30% 3.8%
A: 11.6 V: 11.6 A-V: 0.008 ct: 0.064 291 57% 30% 3.7%
A: 12.4 V: 12.4 A-V: 0.008 ct: 0.074 311 58% 30% 3.7%
A: 13.2 V: 13.2 A-V: 0.008 ct: 0.084 331 58% 30% 3.6%
A: 14.0 V: 14.0 A-V: -0.016 ct: 0.067 346 59% 30% 3.5%
A: 14.8 V: 14.8 A-V: 0.008 ct: 0.089 366 59% 31% 3.4%
A: 15.6 V: 15.6 A-V: -0.032 ct: 0.075 386 59% 30% 3.4%
A: 16.4 V: 16.4 A-V: 0.016 ct: 0.075 406 59% 30% 3.4%
A: 17.2 V: 17.0 A-V: 0.000 ct: 0.071 426 60% 30% 3.3%
A: 17.8 V: 17.8 A-V: 0.016 ct: 0.069 446 60% 30% 3.3%
A: 18.6 V: 18.6 A-V: 0.000 ct: 0.053 466 61% 30% 3.2%
A: 19.4 V: 19.4 A-V: -0.016 ct: 0.063 486 61% 30% 3.2%
A: 20.2 V: 20.2 A-V: 0.032 ct: 0.063 501 61% 30% 3.2%
A: 21.0 V: 21.0 A-V: -0.016 ct: 0.081 521 61% 30% 3.1%
A: 21.9 V: 21.8 A-V: -0.024 ct: 0.096 541 61% 30% 3.1%
A: 22.6 V: 22.6 A-V: -0.024 ct: 0.078 561 61% 30% 3.1%
A: 23.4 V: 23.2 A-V: -0.016 ct: 0.072 581 61% 30% 3.1%
A: 24.0 V: 24.0 A-V: 0.000 ct: 0.068 601 61% 30% 3.1%
A: 24.8 V: 24.8 A-V: 0.016 ct: 0.060 621 61% 30% 3.0%
A: 25.6 V: 25.6 A-V: -0.008 ct: 0.040 641 59% 30% 3.0%
A: 26.4 V: 26.4 A-V: 0.024 ct: 0.050 661 58% 30% 3.0%
A: 27.2 V: 27.2 A-V: 0.008 ct: 0.051 676 57% 30% 2.9%
A: 28.0 V: 28.0 A-V: 0.008 ct: 0.049 696 57% 30% 2.9%
A: 28.8 V: 28.8 A-V: 0.016 ct: 0.075 716 56% 30% 2.9%
A: 29.6 V: 29.4 A-V: 0.008 ct: 0.077 736 55% 30% 2.9%
A: 30.4 V: 30.2 A-V: 0.024 ct: 0.071 756 54% 30% 2.9%
A: 31.0 V: 31.0 A-V: -0.024 ct: 0.063 776 54% 30% 2.9%
> > Oh, and if I use -vo null, it displays the sound on all the avi files
> > perfectly well, leaving me feeling that perhaps it needs to have the
> > priority on sound decoding set rather higher... sadly, I don't know how to
> > do this ;-)
>
> Hmm. If the sound was perfect with -vo null, and jerky with (slow) -vo
> fbdev, so it means that fbdev eats too many power. What are the % values
> printed in status line while playing? I have a bet that second % is high.
>
> Try to set up MTRR registers (see DOCS/MTRR), it helps A LOT on p3.
>
>
> A'rpi / Astral & ESP-team
>
> --
> mailto:arpi at thot.banki.hu
> http://esp-team.scene.hu
>
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> Mplayer-users at lists.sourceforge.net
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>
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