Posts Tagged ‘timestamp’
November 4th, 2009 | 
Author: Initial let’s have a look at what kind of movie/video files can be copy to PSP.
Video files which will be played on PSP:
You’ll play files of the following types on the PSP™ system:
Memory Stick™ Video Format
- MPEG-4 Easy Profile (AAC)
- H.264/MPEG-four AVC Main Profile (CABAC) (AAC) and Baseline Profile (AAC)
MP4
- MPEG-4 Simple Profile (AAC)
- H.264/MPEG-4 AVC Main Profile (CABAC) (AAC) and Baseline Profile (AAC)
AVI
- Motion JPEG (Linear PCM)
- Motion JPEG (-Law)
Hints
Relying on the information kind, some data things can’t be played.
The system cannot play video data containing video recorded for longer than approximately six hours and 30 minutes.
Some files distributed over the Web may have playback limitations. For details, contact the content provider.
So if you wish to copy DVD movie to PSP, you should convert DVD to PSP movie first.
Currently 1st thing you wish to try to to is decide on what DVD you wish to rip. This can be something from a 2 hour movie to an episode of your favorite TV show. Now clearly, depending on the length of your video, the size of the file will be larger. Thus be prepared to create room for these files on your computer.
Now you wish to place your DVD into the DVD drive of your computer. Currently begin up SmartRipper. It can check the drive to determine if it can browse the files or not. If all works you’ll get a brand new window with a lot of stuff on it. Now 1st thing you would like to try and do is click on the Settings button. Underneath File – Splitting, select max-filesize and below max-filesize sort 9999. Hit Ok to save the settings. Currently on this screen, you’ll see some words like Program Chain, Angle one, etc. Now one among the angles within the Program Chain will be highlighted. This can conjointly have a timestamp in [] next to it. This can be your main movie.
Now possibly, you simply need one language and you speak that language so no subtitles are needed. Therefore click the Stream Processing tab and click on on Enable Stream Processing. Now you’ll see stuff like Audio English, Subtitles Espanol, etc. Select the Audio you wish and uncheck all the others. Additionally uncheck all the subtitle streams. Currently after this is done, click on the Folder at the bottom of the window and pick a file name for the DVD files and choose a folder to save lots of them in. Create this file name something relevant, like Family Guy – 01 – Death Has A Shadow. You may would like this for the PSP to know what the video is. When all of this is configured click the Start button. Now the ripping process may take anywhere from a couple of minutes to a few hours. It all depends on how briskly your pc is. Once it’s all done, shut the program.
Virtually there
Currently it is time to open up PSP Video 9. First issue you need to do is hook up your PSP to your pc via a USB Cable. After you do this click on Setup on PSP Video 9 and on PSP Drive, click Auto Find. You’ll be able to additionally specify a different video output directory, but it is not necesary. You’ll also modification the Default Profile to your liking. I like 368×208, 29.97fps, 768kbps Stereo, 128kbps myself, but it’s up to you. The resolution (e.g. 320×240) is how your video will look. 320×240 is commonplace, and 368×207 is widescreen (native PSP resolution). Take your decide between the two. Now you wish to make a decision on the bitrate (e.g. 768kbps). The upper this is often, the better the standard, but the larger the file size. Therefore i’d advocate 768kbps for someone with a 512MB stick, and 1500kbps for someone with a 1GB stick. You will wish to depart the framerate at 29.97fps and also the audio bitrate at 128kbps for the simplest quality.
Now that you have picked your video settings, click Convert at the high of the window and click Convert New Video. Currently you just need to pick the VOB file that you simply ripped with SmartRipper. Once you choose the video file, the encoding can start automatically together with your defualt settings. When it’s done, click on Copy and you’ll come to a PC and PSP file browser window. Currently click the video file you simply made (ought to look like M4V10001.MP4) and click on on Copy Video to PSP. After you do this you can watch your new DVD video on your PSP via your Memory Stick!
Resource:www.DVDtoPSPconverter.net
Article Source: DVD movie to Play Station Portable: How to repeat DVD to PSP, convert DVD to PSP movie.
The way a computer deals with time is totally different to the ways humans perceive it. We arrange time into seconds, minutes, hours, days, weeks, months and years, while computers on the other hand arrange time as a single number representing the seconds that have passed from a single point in time, known as the prime epoch.
Most computers use NTP (Network Time Protocol) to deal with time and on networks many are synchronised using a dedicated NTP time server. NTP knows nothing about days, years or centuries, only the seconds from the prime epoch. This prime epoch is set (for most systems) at midnight at the turn of the century twentieth century that for a human would be recorded as something like: 00:00 – 01,01,1900.
Computers, however, count time as the number of seconds past this point. If a computer was around in 1900 its timestamp on midnight January 1 would be 0 while in 1972 at the same date the timestamp would be 2,272,060,800, which represents the number of seconds since 1900.
The timestamps restart every 136 years with the next wrap around due in 2036, this has caused uneasiness amongst some who fear a Millennium Bug type scenario, although most doubt such events would occur, however, when a wrap-around of the timestamp does happen an era integer will be added (+1), to allow computers to deal with time spans that cover more than one wrap-around. If computers and NTP need to deal with time that spans before the prime epoch a negative integer is used (for the year 1500 a -3 will be used to represent three cycles of 136 years).
Timestamps are used in virtually every transaction that modern computers are tasked to do such as sending emails, debugging and programming. Because time is linear, a computer knows that each timestamp is always greater than the previous one and therefore computers and NTP find it difficult to deal with inaccuracies in time, particularly when time suddenly appears to go backwards.
This can happen if computers are not synchronised to the same time. If an email is sent to a machine with a slower clock, it appears to the computer to have been received before it has been sent. Lack of synchronisation can serious problems and can even leave a system vulnerable to malicious attacks and even fraud.
Because of this, most computer networks are synchronised to UTC (Coordinated Universal Time). UTC is a global timescale and the same for everybody worldwide it is based on the time told by atomic clocks which are highly accurate, neither gaining nor losing a second in millions of years.
Most computer networks use a dedicated NTP time server to receive a UTC time to synchronise their computers too. UTC is available from across the Internet (although unsecured), via the GPS network (Global Positioning System), or by receiving national time and frequency broadcasts via long wave.
NTP synchronises a computer by checking the received UTC time and adding to or holding a computer’s timestamp until it perfectly matches UTC. By using a dedicated NTP time server UTC can be maintained on a network to a few milliseconds of UTC time.
Richard N Williams is a technical author and specialist in atomic clocks, telecommunications, NTP and network time synchronisation helping to develop dedicated NTP clocks. Please visit us for more information about a network time server or other NTP server solutions.
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Article Source: NTP – Understanding Computer Timestamps