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Re: DVD choppy



On 29/01/07, alan <alan clueserver org> wrote:
On Mon, 29 Jan 2007, Dotan Cohen wrote:

> On 29/01/07, alan <alan clueserver org> wrote:
>>
>> It is an Intel 945GM Chipset (according to the dmesg log posted).
>>
>> Sound like either the hardware acceleration is not enabled or the player
>> is using a video mode that is inefficient or not working.
>>
>
> Thanks, Alans. How would one go about enabling the hardware
> acceleration or changing the video mode?
>
> I'm having problems in all players: Kplayer (based on mplayer),
> kaffiene, and I think Noatun (I can't get past the menu selection on
> Noatun). However, I just checked vlc and it works fine. I'd still like
> to fix kplayer, though.

Are you launching it from a menu item or a command line?  If you are using
a menu item, try using the command line and see if any interesting error
messages get printed.  Maybe you have something misconfigured and it is
just being slow instead of erroring out.

[dotancohen localhost ~]$ kaffeine
0
QLayout "unnamed" added to QWidget "unnamed", which already has a layout
[dotancohen localhost ~]$ libdvdnav: Using dvdnav version 0.1.10 from
http://dvd.sf.net
libdvdread: Using libdvdcss version 1.2.9 for DVD access
libdvdnav: DVD Title: Black_hawk
libdvdnav: DVD Serial Number: c09cc209
libdvdnav: DVD Title (Alternative): Black_hawk
libdvdnav: Unable to find map file '/home/dotancohen/.dvdnav/Black_hawk.map'
libdvdnav: DVD disk reports itself with Region mask 0x00c00000.
Regions: 1 2 3 4 5 6

libdvdread: Attempting to retrieve all CSS keys
libdvdread: This can take a _long_ time, please be patient

libdvdread: Get key for /VIDEO_TS/VIDEO_TS.VOB at 0x0000013e
libdvdread: Elapsed time 0
libdvdread: Get key for /VIDEO_TS/VTS_01_0.VOB at 0x000001da
libdvdread: Elapsed time 0
libdvdread: Get key for /VIDEO_TS/VTS_01_1.VOB at 0x000013f0
libdvdread: Elapsed time 0
libdvdread: Get key for /VIDEO_TS/VTS_02_0.VOB at 0x00342f0e
libdvdread: Elapsed time 0
libdvdread: Get key for /VIDEO_TS/VTS_02_1.VOB at 0x00342f26
libdvdread: Elapsed time 0
libdvdread: Get key for /VIDEO_TS/VTS_03_1.VOB at 0x003d13e6
libdvdread: Elapsed time 0
libdvdread: Found 3 VTS's
libdvdread: Elapsed time 0


Kplayer now refuses to play the disk. When launching kplayer I noticed
something strange:  When opening the FIle drive with no disk in the
drive Kplayer usually has a menu item "DVD Device" and when there is a
disk that same menu item changes to the name of the disk. Now, that
menu item is rapidly changing from "DVD Device" to "Black Hawk" (or
the name of whatever disk I'm trying to play). There is also absolutly
no output to the command line:
[dotancohen localhost ~]$ kplayer
[dotancohen localhost ~]$

Just for comparison, this is the output of the (working, not choppy) VLC:
[dotancohen localhost ~]$ vlc
VLC media player 0.8.6a Janus
libdvdnav: Using dvdnav version 0.1.10 from http://dvd.sf.net
libdvdread: Using libdvdcss version 1.2.9 for DVD access
libdvdnav: DVD Title: Black_hawk
libdvdnav: DVD Serial Number: c09cc209
libdvdnav: DVD Title (Alternative): Black_hawk
libdvdnav: Unable to find map file '/home/dotancohen/.dvdnav/Black_hawk.map'
libdvdnav: DVD disk reports itself with Region mask 0x00c00000.
Regions: 1 2 3 4 5 6

libdvdread: Attempting to retrieve all CSS keys
libdvdread: This can take a _long_ time, please be patient

libdvdread: Get key for /VIDEO_TS/VIDEO_TS.VOB at 0x0000013e
libdvdread: Elapsed time 0
libdvdread: Get key for /VIDEO_TS/VTS_01_0.VOB at 0x000001da
libdvdread: Elapsed time 0
libdvdread: Get key for /VIDEO_TS/VTS_01_1.VOB at 0x000013f0
libdvdread: Elapsed time 0
libdvdread: Get key for /VIDEO_TS/VTS_02_0.VOB at 0x00342f0e
libdvdread: Elapsed time 0
libdvdread: Get key for /VIDEO_TS/VTS_02_1.VOB at 0x00342f26
libdvdread: Elapsed time 0
libdvdread: Get key for /VIDEO_TS/VTS_03_1.VOB at 0x003d13e6
libdvdread: Elapsed time 0
libdvdread: Found 3 VTS's
libdvdread: Elapsed time 0
[00000339] a52 decoder: A/52 channels:6 samplerate:48000 bitrate:448000
No accelerated IMDCT transform found
[00000360] a52 decoder: A/52 channels:6 samplerate:48000 bitrate:448000
No accelerated IMDCT transform found

For comparison, I put another known-good disk in, and Kaffeine played
the first 20 seconds, then complained that it "could not read from the
original". It was choppy during this time. Nothing was reported on the
command line, however, that wasn't when trying the first disk. Kplayer
did the same name-switching game that it did with the first disk
(again with no console output), and vlc played fine.

Dotan Cohen

http://dotancohen.com/photoalbum/images/index.htm
http://what-is-what.com/what_is/electromagnet.html


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