ungeraynrand
12th August 2002, 03:32
http://arstechnica.infopop.net/OpenTopic/page?a=tpc&s=50009562&f=67909965&m=6110970035
The default resize algorithm in windows media player (and many other media players including windvd) is bilinear, I believe. While Bilinear is probably okay for most folks, for me, I prefer a resize routine that better preserves the crispiness of the original frame... a bicubic resize routine... perhaps...
Where can I find such a thing? Is there a setting Im supposed to fiddle with. My hardware is more than able to handle the stronger demands of bicubic code.
My Hardware Configuration
Athlon 1.3333333333ghz on a matrox g450 lying lazily on an epox 8k7a, with 256mb pc2100 on the side.
PS: I tried the "Bicubic Direct Show resize filter - allows you to dynamically change the resolution of a movie during playback." found on Doom9's site. I don't think its working though.
PPS: as to the question of, "how do you know, the default resize is bilinear"? My answer: I know because when I expand the frame as the movie is playing by evening 1 percent, I saw it softening up.
[This message was edited by UngerAynRand on August 11, 2002 at 16:12.]
stickboy
Ars Centurion
et Subscriptor
Tribus: California, U.S.
Registered: August 23, 2000
Posts: 1164
posted August 11, 2002 19:18
--------------------------------------------------------------------------------
quote:
--------------------------------------------------------------------------------
Originally posted by UngerAynRand:
PS: I tried the "Bicubic Direct Show resize filter - allows you to dynamically change the resolution of a movie during playback." found on Doom9's site. I don't think its working though.
--------------------------------------------------------------------------------
Are you sure? Did you configure the filter? You know you set the output frame size for the filter, and any resizing you do in the player afterward uses the usual resize method, right? (I think the last time I used the bicubic resize filter, though, it caused more problems than it was worth.)
If you're dealing with divx/xvid/ms-mp4v1,2,3, how about using ffdshow?
UngerAynRand
Wise, Aged Ars Veteran
Registered: October 01, 2001
Posts: 410
posted August 11, 2002 20:20
--------------------------------------------------------------------------------
quote:
--------------------------------------------------------------------------------
Are you sure? Did you configure the filter? You know you set the output frame size for the filter, and any resizing you do in the player afterward uses the usual resize method, right? (I think the last time I used the bicubic resize filter, though, it caused more problems than it was worth.)
If you're dealing with divx/xvid/ms-mp4v1,2,3, how about using ffdshow?
--------------------------------------------------------------------------------
I use FFDSHOW for Xvid,mpeg4v2, I don't think it has a bicubic resize routine though.
As for doom 9's "Bicubic Direct Show resize filter" (hereafter referred to as -bq-), I moved the bicubic_resizer.ax file into my windows 2000's WINNT/system32 folder. then registered it by clicking on the reg_bicubic.bat. so far, so good.
I try it out by opening a video file, strangely, media player 6.4 tried to contact microsoft for a codec. then the video opens, just like normal, but the direct show filter doesn't show up (properties -> advanced -> direct show filters doesn't show). A fresh win2k re-install may fix things.
stickboy
Ars Centurion
et Subscriptor
Tribus: California, U.S.
Registered: August 23, 2000
Posts: 1164
posted August 11, 2002 21:48
--------------------------------------------------------------------------------
quote:
--------------------------------------------------------------------------------
Originally posted by UngerAynRand:
I use FFDSHOW for Xvid,mpeg4v2, I don't think it has a bicubic resize routine though.
--------------------------------------------------------------------------------
Are you using the latest version? Look again.
quote:
--------------------------------------------------------------------------------
I try it out by opening a video file, strangely, media player 6.4 tried to contact microsoft for a codec.
--------------------------------------------------------------------------------
Hm, I think I had similar problems, but I think it happened only for certain codecs. (Probably a colorspace problem.) It was a while back, so I don't remember the details.
The default resize algorithm in windows media player (and many other media players including windvd) is bilinear, I believe. While Bilinear is probably okay for most folks, for me, I prefer a resize routine that better preserves the crispiness of the original frame... a bicubic resize routine... perhaps...
Where can I find such a thing? Is there a setting Im supposed to fiddle with. My hardware is more than able to handle the stronger demands of bicubic code.
My Hardware Configuration
Athlon 1.3333333333ghz on a matrox g450 lying lazily on an epox 8k7a, with 256mb pc2100 on the side.
PS: I tried the "Bicubic Direct Show resize filter - allows you to dynamically change the resolution of a movie during playback." found on Doom9's site. I don't think its working though.
PPS: as to the question of, "how do you know, the default resize is bilinear"? My answer: I know because when I expand the frame as the movie is playing by evening 1 percent, I saw it softening up.
[This message was edited by UngerAynRand on August 11, 2002 at 16:12.]
stickboy
Ars Centurion
et Subscriptor
Tribus: California, U.S.
Registered: August 23, 2000
Posts: 1164
posted August 11, 2002 19:18
--------------------------------------------------------------------------------
quote:
--------------------------------------------------------------------------------
Originally posted by UngerAynRand:
PS: I tried the "Bicubic Direct Show resize filter - allows you to dynamically change the resolution of a movie during playback." found on Doom9's site. I don't think its working though.
--------------------------------------------------------------------------------
Are you sure? Did you configure the filter? You know you set the output frame size for the filter, and any resizing you do in the player afterward uses the usual resize method, right? (I think the last time I used the bicubic resize filter, though, it caused more problems than it was worth.)
If you're dealing with divx/xvid/ms-mp4v1,2,3, how about using ffdshow?
UngerAynRand
Wise, Aged Ars Veteran
Registered: October 01, 2001
Posts: 410
posted August 11, 2002 20:20
--------------------------------------------------------------------------------
quote:
--------------------------------------------------------------------------------
Are you sure? Did you configure the filter? You know you set the output frame size for the filter, and any resizing you do in the player afterward uses the usual resize method, right? (I think the last time I used the bicubic resize filter, though, it caused more problems than it was worth.)
If you're dealing with divx/xvid/ms-mp4v1,2,3, how about using ffdshow?
--------------------------------------------------------------------------------
I use FFDSHOW for Xvid,mpeg4v2, I don't think it has a bicubic resize routine though.
As for doom 9's "Bicubic Direct Show resize filter" (hereafter referred to as -bq-), I moved the bicubic_resizer.ax file into my windows 2000's WINNT/system32 folder. then registered it by clicking on the reg_bicubic.bat. so far, so good.
I try it out by opening a video file, strangely, media player 6.4 tried to contact microsoft for a codec. then the video opens, just like normal, but the direct show filter doesn't show up (properties -> advanced -> direct show filters doesn't show). A fresh win2k re-install may fix things.
stickboy
Ars Centurion
et Subscriptor
Tribus: California, U.S.
Registered: August 23, 2000
Posts: 1164
posted August 11, 2002 21:48
--------------------------------------------------------------------------------
quote:
--------------------------------------------------------------------------------
Originally posted by UngerAynRand:
I use FFDSHOW for Xvid,mpeg4v2, I don't think it has a bicubic resize routine though.
--------------------------------------------------------------------------------
Are you using the latest version? Look again.
quote:
--------------------------------------------------------------------------------
I try it out by opening a video file, strangely, media player 6.4 tried to contact microsoft for a codec.
--------------------------------------------------------------------------------
Hm, I think I had similar problems, but I think it happened only for certain codecs. (Probably a colorspace problem.) It was a while back, so I don't remember the details.