Rockbox

  • Status Closed
  • Percent Complete
    0%
  • Task Type Patches
  • Category User Interface → Themes
  • Assigned To No-one
  • Operating System
  • Severity Low
  • Priority Very Low
  • Reported Version
  • Due in Version Undecided
  • Due Date Undecided
  • Votes
  • Private
Attached to Project: Rockbox
Opened by langhaarrocker - 2002-11-03
Last edited by langhaarrocker - 2003-01-09

FS#507 - disable scroll while filling mpeg buffer

We had a serious performance problem with playback of
bitrates > 256 kBit/s. This was because scrolling
multiple lines (especially in combination with the peak
meter) ate to much performance.
This patch disables scrolling while the mpeg buffer is
being filled. I had no problems with bitrates of 320 kBit/s
and the peak meter in high performance mode and 5
lines scrolling. (well, not scrolling while filling the buffer,
of course!)

I also enabled the double reading in the peak meter
again because that improves the clip detection
enormously.

Phil

   scroll.diff (2.7 KiB)
Closed by  langhaarrocker
2003-01-09 10:38
Reason for closing:  Rejected
Additional comments about closing:   Warning: Undefined array key "typography" in /home/rockbox/flyspray/plugins/dokuwiki/inc/parserutils.php on line 371 Warning: Undefined array key "camelcase" in /home/rockbox/flyspray/plugins/dokuwiki/inc/parserutils.php on line 407

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The bug is fixed and was neither a scroll nor a peak meter
problem.
But still I'd consider peak meter info as a higher priority than
scrolling since it is a real-time information. When you e.g.
record from the jb to tape you will want to know the peaks for
level settings. Interrupting the meter means that you can
miss peaks and overdrive your recorder without notice. In this
situation scrolling without interruption is nice to have - but not
necessary. An interrupted peak meter degrades it into a
useless gimmick.
Luckily this problem was solved somewhere else.

Phil

Project Manager
zagor commented on 2003-01-09 01:10

This is not a scroll issue, and thus the scroll should not be
affected. If anything, the peak meter should be disabled.

langhaarrocker commented on 2003-01-09 10:38

The bug is fixed and was neither a scroll nor a peak meter
problem.
But still I’d consider peak meter info as a higher priority than
scrolling since it is a real-time information. When you e.g.
record from the jb to tape you will want to know the peaks for
level settings. Interrupting the meter means that you can
miss peaks and overdrive your recorder without notice. In this
situation scrolling without interruption is nice to have - but not
necessary. An interrupted peak meter degrades it into a
useless gimmick.
Luckily this problem was solved somewhere else.

Phil

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