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Porting apps to Leste (32)
to Maemo 7 / Leste by Arno_11 - 5 days, 13 hrs ago - more...
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2007-06-06
, 13:59
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Posts: 52 |
Thanked: 2 times |
Joined on May 2007
@ Northeast USA
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#12
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This may not be the appropriate venue for this question... but do you guys have any recommendations on how best to convert a DVD for optimal viewing on the n800? Thanks.
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2007-06-06
, 14:21
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Posts: 3,220 |
Thanked: 326 times |
Joined on Oct 2005
@ "Almost there!" (Monte Christo, Count of)
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#13
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Originally Posted by docnesh
Konttori's Media Converter (https://garage.maemo.org/projects/mediaconverter/), although it doesn't work correctly for me every time (I have off and on problems with aspect ratios, but other people love it unconditionally).
This may not be the appropriate venue for this question... but do you guys have any recommendations on how best to convert a DVD for optimal viewing on the n800? Thanks.
VirtualDub (http://www.virtualdub.org/index) is something I use regularly. It's more fiddly than Media Converter and the converted movies only play in Mplayer (Media Player is very finnicky about the number of pixels of a videoframe and what kind of Divx flavour is used), but Mplayer is at the moment way better than Media Player anyway.
There is a Perl script somewhere, but (with humblest apologies to the author) I can't juggle my brain into the right gear to find it.
Check the howto's on the maemo.org site.
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2007-06-06
, 15:39
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Posts: 165 |
Thanked: 5 times |
Joined on Jan 2007
@ Boston MA USA
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#14
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Originally Posted by noyz
Flash media read/write speed is probably optimized by the factory format, which uses larger clusters (also called allocation units) than comparably sized magnetic media, for reasons related to the internal organization and control of the memory cells. Typically this is 32KB for SDHC cards, or 8 times larger granularity than equivalent hard drive volumes.
What do u guys mean what you say "clusters"? Is there a different way to format the cards so that they read faster? Bigger or smaller clusters?
Since each file occupies at least one cluster, the default format wastes a lot of space when large numbers of small files are involved (as in maemo-mapper 1.x). Some of us choose to maximize capacity by minimizing the cluster size for this specific storage pattern, despite the penalty in access speed (which can be substantial).
fanoush posted the Windows command line syntax. The same options are also available through the GUI:
Control Panel -> Administrative Tools -> Computer Management (Local) -> Storage -> Disk Management. Right-click the drive letter in the Volume table or the graphical map. Selecting "Format..." lets you specify the Volume label, File system and Allocation unit size, or perform a quick format (which sets up the data structures without overwriting the media).
Windows Explorer gives you a similar dialog, but only enables the Default allocation unit size, presumably to deter casual users who might not understand the consequences.
To restore the format to SD Card Association standards, download Panasonic's SDFormatter V2.0.0.2 (Windows only) from here:
http://panasonic.jp/support/global/c...formatter.html
[Note: This version is newer than the one posted on sdcard.org]
C:\>format /? Formats a disk for use with Windows XP. FORMAT volume [/FS:file-system] [/V:label] [/Q] [/A:size] [/C] [/X] .... /A:size Overrides the default allocation unit size. Default settings are strongly recommended for general use. NTFS supports 512, 1024, 2048, 4096, 8192, 16K, 32K, 64K. FAT supports 512, 1024, 2048, 4096, 8192, 16K, 32K, 64K, (128K, 256K for sector size > 512 bytes). FAT32 supports 512, 1024, 2048, 4096, 8192, 16K, 32K, 64K, (128K, 256K for sector size > 512 bytes). Note that the FAT and FAT32 files systems impose the following restrictions on the number of clusters on a volume: FAT: Number of clusters <= 65526 FAT32: 65526 < Number of clusters < 4177918 ...