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  • BrainwreckedTech 8:09 pm on October 11, 2012 Permalink | Reply
    Tags: avidemux, , filmdint, framerate, , lossless, , , NTSC, progressive, pullup, softpulldown, , telecine, video, x264   

    Getting the Best Results From MPlayer and Mixed Telecined & Progressive Video 

    This post is years in the making.  Not that I’ve spent the entirety of those years working on this problem, or even the entirety of my spare time.  This is just one of those things that I’ve relentlessly banged my head up against until I couldn’t take anymore, only to have it nag me somewhere down the line and pick it back up again.

    For the longest time, I could not for the life of me process video that was mixed telecine and progressive without having the resulting video end up longer than the original.  The immediate problem is that A/V sync starts out fine but then drifts to whatever the time difference is between the two videos.  I eventually discovered soundstretch, which can adjust tempo (play time) without affecting pitch, but then that introduces the problem of calculating the time difference as a percentage (and the rounding errors involved in that), re-coding an already-lossy audio stream, and the time it can take to process one-to-two hours of uncompressed WAV data.

    While I did have most of that down, it was just too much time.

    (More …)

  • BrainwreckedTech 11:33 pm on August 3, 2010 Permalink | Reply
    Tags: dpms, , monitor, nircmd, , , vbetool, video, , xset   

    Automatically Switch Between Monitor Inputs 

    We geeks are lazy. Manually switching between monitor inputs can be a pain if you have to navigate the monitor’s menu to do so. If you’re lucky enough to have a monitor with a dedicated input switch button, constantly switching between inputs is a good way to break that switch on a cheap monitor.

    Almost all monitors with multiple inputs will auto-switch to an input that has a signal if the current input’s signal goes away. This can be taken advantage of if you have the tools to force the monitor signal to turn off. Then switching inputs is easy.

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    • gary 6:32 pm on June 24, 2012 Permalink | Reply

      This doesn’t work at all for me, even though my monitor is set up for auto-scan/auto switch source. The monitor has an OSD where I can manually switch sources, and when I “put it to sleep” using nircmd, the monitor is paralyzed–I can’t even access the OSD unless I wake it by wiggling the mouse. So doing this is not the equivalent of yanking the cable, which WILL which switch the input source if the other computer is providing a signal.

    • BrainwreckedTech 11:34 am on June 29, 2012 Permalink | Reply

      This is interesting. Have you tried playing with the BIOS settings for the settings concerning monitor turn-off or power savings? I’m on vacation right now so the names might be off, but there’s usually a few like DPMS, V-Blank, Black Screen, and such. I can see auto-switch failing on the black screen method, but freezing the OSD might be indicative of using a power-off method that the monitor doesn’t really support.

      Could also be that your monitor has faulty auto-switch capabilities. The ideal is that the monitor would skip over any input that doesn’t have an active imaging signal. What it could be doing is counting any closed circuit as a signal. This is easy to test for: With two PCs on, turn one off without unplugging any cables. If a switch-over occurs, it might be a BIOS setting. If it does not, the auto-switch is cheap closed/open circuit detection.

    • Nura 10:49 am on August 16, 2012 Permalink | Reply

      Works perfectly 🙂 Thanks.

      Just a additional query though. Do you know how the “nircmd.exe cmdwait 500 monitor off” can be tweaked such that one can switch off a chosen monitor when two monitors are connected to a machine :), like say for instance want to switch of the left monitor (which is identified as Display num 1 by windows) 🙂

      thanks again.


      • BrainwreckedTech 11:58 pm on August 18, 2012 Permalink | Reply

        The decision to turn monitors off is based on the lack of keyboard and mouse activity, and to monitor that efficiently requires lower-level access (monitoring port activity) that precludes monitor information.

        There is one semi-solution, though. Win+P will allow you to change multiple-monitor mode, including switching back to single-monitor mode.

        • BoseRoHS 7:25 am on January 14, 2014 Permalink | Reply

          Though, how can you avoid the Win+P method? As Nura inquired… how is it possible to switch off the second monitor so that one can control and view the other computer connected to the other input?

          With dual monitors and Win+P the custom display (ie. tabs, desktop icons, etc) settings on the main computer will all revert to the main monitor.

          I’m using Microsoft Garage to control both PC’s via mouse and keyboard, but unable to control the second monitors input, unless I switch the physical switch on the monitor or an application like mControl from Entech (software is buggy and 21-day trial expired 2 days after install). So, now, I’m looking for an alternative.

          • BrainwreckedTech 7:57 pm on January 14, 2014 Permalink | Reply

            The last hope would be Displayfusion, which claims to “Enable/disable monitors.” Sound more like “Disable Display” than “Put Display To Sleep,” though.

            Ncrmd, Ultrmon, EnTech, and Displayfusion are the only tricks I know of.

    • Handcrafter 6:53 pm on April 17, 2013 Permalink | Reply

      Thank You for the Win+P tip. Waiting for the auto switch on my aoc monitor was frustrating…

    • Room 7:24 pm on August 6, 2014 Permalink | Reply

      Thank you,” nircmd.exe monitor off” works perfectly for me.

      This is my setup:

      I have two monitors with dual inputs, and two PC’s with dual inputs. Both PC’s are connected to each monitor so I can run dual screens on each PC.

      If both machines are ON at the same time, I wanted to switch to each machine in dual monitor mode seamlessly without having to fiddle around with the source button or OSD menu on each monitor.

      This command works a charm! Just create the shortcut with the command and double click. WAIT and both monitors will switch over to the other machine, when you want to switch back just double click on the shortcut on the other PC, WAIT and it will switch back! perfect just what I was looking for.

      I note, it’s very important that you WAIT, if you click or type during the switch over you’ll find one monitor will switch while the other one won’t. Just wait without touching anything and it will switch over.

      Also, both my monitors have AUTO source enabled, if yours doesn’t this might not work for you.

    • Thor Mengkheang 6:41 am on May 7, 2015 Permalink | Reply

      the windows one work perfectly but do you have a script for mac?

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