Overclock.net › Forums › Software, Programming and Coding › Operating Systems › Windows › Vistax64 video rendering
New Posts  All Forums:Forum Nav:

Vistax64 video rendering

post #1 of 6
Thread Starter 
anyone notice that videos played in wmp are much brighter and better looking than in VLC? does vista have some sort of purevideo rendering codecs installed by default?
zie system
(13 items)
 
  
CPUMotherboardGraphicsRAM
E2200 @ 3.1 (1.4v) GIGABYTE P35-DS3L rev. 2.0 EVGA 8800GT SC 2GB Corsair XMS2 TWIN2X2048-6400 
Hard DriveOSMonitorKeyboard
Seagate 250GB SATA II 3Gb/s XP Pro Philips 109s CRT Logitech Media 
PowerCaseMouse
Allied 400W Apex G3 Laser 
  hide details  
Reply
zie system
(13 items)
 
  
CPUMotherboardGraphicsRAM
E2200 @ 3.1 (1.4v) GIGABYTE P35-DS3L rev. 2.0 EVGA 8800GT SC 2GB Corsair XMS2 TWIN2X2048-6400 
Hard DriveOSMonitorKeyboard
Seagate 250GB SATA II 3Gb/s XP Pro Philips 109s CRT Logitech Media 
PowerCaseMouse
Allied 400W Apex G3 Laser 
  hide details  
Reply
post #2 of 6
are you sure its not just updated video card drivers? Im pretty sure its all the same
Pangus
(13 items)
 
  
MotherboardGraphicsRAMHard Drive
msi gd80 790fx Radeon HD 7950 Corsair Vengance Seagate 
Hard DriveCoolingOSMonitor
WDC Raptor Corsair h100i Windows 7 x64 42in Sanyo lcd 
KeyboardPowerCaseMouse
cherry seventeam 750w modular antec 1200 Razer Copperhead 
Audio
magazine 
  hide details  
Reply
Pangus
(13 items)
 
  
MotherboardGraphicsRAMHard Drive
msi gd80 790fx Radeon HD 7950 Corsair Vengance Seagate 
Hard DriveCoolingOSMonitor
WDC Raptor Corsair h100i Windows 7 x64 42in Sanyo lcd 
KeyboardPowerCaseMouse
cherry seventeam 750w modular antec 1200 Razer Copperhead 
Audio
magazine 
  hide details  
Reply
post #3 of 6
Thread Starter 
Quote:
Originally Posted by heelsparky0501 View Post
are you sure its not just updated video card drivers? Im pretty sure its all the same
of course it's not updated video card drivers

check for yourself, open a vid in wmp and vlc at the same time. wmp is has better contrast. here's a screenie:

wmp: vlc:

there's not a huge difference in the pictures. the difference is much more evident while watching a video. in xp, there's no visible difference at all between the videos using the same programs.
zie system
(13 items)
 
  
CPUMotherboardGraphicsRAM
E2200 @ 3.1 (1.4v) GIGABYTE P35-DS3L rev. 2.0 EVGA 8800GT SC 2GB Corsair XMS2 TWIN2X2048-6400 
Hard DriveOSMonitorKeyboard
Seagate 250GB SATA II 3Gb/s XP Pro Philips 109s CRT Logitech Media 
PowerCaseMouse
Allied 400W Apex G3 Laser 
  hide details  
Reply
zie system
(13 items)
 
  
CPUMotherboardGraphicsRAM
E2200 @ 3.1 (1.4v) GIGABYTE P35-DS3L rev. 2.0 EVGA 8800GT SC 2GB Corsair XMS2 TWIN2X2048-6400 
Hard DriveOSMonitorKeyboard
Seagate 250GB SATA II 3Gb/s XP Pro Philips 109s CRT Logitech Media 
PowerCaseMouse
Allied 400W Apex G3 Laser 
  hide details  
Reply
post #4 of 6
Probably because VLC uses all internal software, and WMP uses DirectShow.

The difference you see is levels - WMP converts TV levels to PC levels, while VLC does not.
It's likely the DirectShow filter chain you get when you play videos of this kind also includes a level conversion somewhere.

I've never used VLC, so I don't know how to fix it. I took a quick look and don't see any option to do this, but you should go to some VLC-related forum or mailing list and ask about enabling "TV levels to PC levels conversion".

Read on for an explanation on why this happens if you're bored:

There are two types of brightness value ranges for pixels: TV, and PC.

TV pixels have a range of 16 to 235, where 16 is clear black and 235 is clear white.
PC pixels have a range of 0 to 255, where 0 is clear black and 255 is clear white.

If you play TV video (99% of video) on your PC without doing this conversion then it will assume 0 is clear black, while the video will actually have 16 where clear black is supposed to be.

This makes it so all blacks are a little brighter than what they're supposed to be, and all whites are a little darker than what they're supposed to be (235 and 255), which leads to the washed out look you have
Akiyama Mio
(13 items)
 
  
CPUMotherboardGraphicsRAM
E6420 @ stock, 0.98v Asus P5N-E SLI Gainward GTX 460 1GB @ 800/1600/1900 2x2GB Kingston @ 800MHz 5-5-5-15 2T 
Hard DriveOptical DriveOSMonitor
WD 250GB, 320GB SATA/3, 16MB Cache, Seagate 1TB LG GSA-H62N 18x SATA Ubuntu 9.10 x86 & Win7 x86 Asus VW222U 
KeyboardPowerCase
Logitech Classic Corsair 650HX NZXT Apollo Black 
  hide details  
Reply
Akiyama Mio
(13 items)
 
  
CPUMotherboardGraphicsRAM
E6420 @ stock, 0.98v Asus P5N-E SLI Gainward GTX 460 1GB @ 800/1600/1900 2x2GB Kingston @ 800MHz 5-5-5-15 2T 
Hard DriveOptical DriveOSMonitor
WD 250GB, 320GB SATA/3, 16MB Cache, Seagate 1TB LG GSA-H62N 18x SATA Ubuntu 9.10 x86 & Win7 x86 Asus VW222U 
KeyboardPowerCase
Logitech Classic Corsair 650HX NZXT Apollo Black 
  hide details  
Reply
post #5 of 6
It's because VLC sucks.
post #6 of 6
Thread Starter 
Quote:
Originally Posted by Coma View Post
Probably because VLC uses all internal software, and WMP uses DirectShow.

The difference you see is levels - WMP converts TV levels to PC levels, while VLC does not.
It's likely the DirectShow filter chain you get when you play videos of this kind also includes a level conversion somewhere.

I've never used VLC, so I don't know how to fix it. I took a quick look and don't see any option to do this, but you should go to some VLC-related forum or mailing list and ask about enabling "TV levels to PC levels conversion".

Read on for an explanation on why this happens if you're bored:

There are two types of brightness value ranges for pixels: TV, and PC.

TV pixels have a range of 16 to 235, where 16 is clear black and 235 is clear white.
PC pixels have a range of 0 to 255, where 0 is clear black and 255 is clear white.

If you play TV video (99% of video) on your PC without doing this conversion then it will assume 0 is clear black, while the video will actually have 16 where clear black is supposed to be.

This makes it so all blacks are a little brighter than what they're supposed to be, and all whites are a little darker than what they're supposed to be (235 and 255), which leads to the washed out look you have
thanks, interesting.
zie system
(13 items)
 
  
CPUMotherboardGraphicsRAM
E2200 @ 3.1 (1.4v) GIGABYTE P35-DS3L rev. 2.0 EVGA 8800GT SC 2GB Corsair XMS2 TWIN2X2048-6400 
Hard DriveOSMonitorKeyboard
Seagate 250GB SATA II 3Gb/s XP Pro Philips 109s CRT Logitech Media 
PowerCaseMouse
Allied 400W Apex G3 Laser 
  hide details  
Reply
zie system
(13 items)
 
  
CPUMotherboardGraphicsRAM
E2200 @ 3.1 (1.4v) GIGABYTE P35-DS3L rev. 2.0 EVGA 8800GT SC 2GB Corsair XMS2 TWIN2X2048-6400 
Hard DriveOSMonitorKeyboard
Seagate 250GB SATA II 3Gb/s XP Pro Philips 109s CRT Logitech Media 
PowerCaseMouse
Allied 400W Apex G3 Laser 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Windows
Overclock.net › Forums › Software, Programming and Coding › Operating Systems › Windows › Vistax64 video rendering