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Search found 89 results on 4 pages for 'wai hein'.

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  • Using Delphi or FFMpeg to create a movie from image sequence

    - by Hein du Plessis
    Hi all My Delphi app has created a squence called frame_001.png to frame_100.png. I need that to be compiled into a movie clip. I think perhaps the easiest is to call ffmpeg from the command line, according to their documentation: For creating a video from many images: ffmpeg -f image2 -i foo-%03d.jpeg -r 12 -s WxH foo.avi The syntax foo-%03d.jpeg specifies to use a decimal number composed of three digits padded with zeroes to express the sequence number. It is the same syntax supported by the C printf function, but only formats accepting a normal integer are suitable. From: http://ffmpeg.org/ffmpeg-doc.html#SEC5 However my files are (lossless) png format, so I have to convert using imagemagick first. My command line is now: ffmpeg.exe -f image2 -i c:\temp\wentelreader\frame_%05d.jpg -r 12 foo.avi But then I get the error: [image2 @ 0x133a7d0]Could not find codec parameters (Video: mjpeg) c:\temp\wentelreader\Frame_C:\VID2EVA\Tools\Mencoder\wentel.bat5d.jpg: could not find codec parameters What am I doing wrong? Alternatively can this be done easily with Delphi?

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  • Getting a nicely formatted timestamp without lots of overhead?

    - by Brad Hein
    In my app I have a textView which contains real-time messages from my app, as things happen, messages get printed to this text box. Each message is time-stamped with HH:MM:SS. Up to now, I had also been chasing what seemed to be a memory leak, but as it turns out, it's just my time-stamp formatting method (see below), It apparently produces thousands of objects that later get gc'd. For 1-10 messages per second, I was seeing 500k-2MB of garbage collected every second by the GC while this method was in place. After removing it, no more garbage problem (its back to a nice interval of about 30 seconds, and only a few k of junk typically) So I'm looking for a new, more lightweight method for producing a HH:MM:SS timestamp string :) Old code: /** * Returns a string containing the current time stamp. * @return - a string. */ public static String currentTimeStamp() { String ret = ""; Date d = new Date(); SimpleDateFormat timeStampFormatter = new SimpleDateFormat("hh:mm:ss"); ret = timeStampFormatter.format(d); return ret; }

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  • List files recursively in linux with path relative to the current directory

    - by Darryl Hein
    This is similar to this question, but I want to include the path relative to the current directory in unix. If can do the following: ls -LR | grep .txt But it doesn't include the full paths. For example, I have the follow dir structure: test1/file.txt test2/file1.txt test2/file2.txt The code above will return: file.txt file1.txt file2.txt How can I get it to include the paths relative to the current directory using standard nix commands?

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  • Is there a workaround for the broken closeOnEscape in jQuery UI Dialog

    - by Darryl Hein
    It looks like there is a bug in jQuery UI Dialog where there closeOnEscape doesn't work properly, such that escape will still close the dialog. One possible solution is to unbind the keydown on the overlay, but this doesn't seem to work. Is there another solution that works? Here is the link for bug and fix for 1.6, but 1.5.3 is still broken: http://dev.jqueryui.com/ticket/3253

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  • Is it valid to replace http:// with // in a <script src="http://...">?

    - by Darryl Hein
    I have the following tag: <script type="text/javascript" src="https://cdn.example.com/js_file.js"></script> In this case the site is HTTPS, but the site may also be just HTTP. (The JS file is on another domain.) I'm wondering if it's valid to do the following for convenience sake: <script type="text/javascript" src="//cdn.example.com/js_file.js"></script> I'm wondering if it's valid to remove the http: or https: ? It seems to work everywhere I have tested, but are there any cases where it doesn't work?

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  • RFCOMM Before Android 2.0?

    - by Brad Hein
    I have several apps which I wrote using the standard SDK. They all connect to RFCOMM devices using bluetooth, so at present, I can only support devices which are 2.0 or newer. What options are available for backporting a bluetooth app to pre-2.0 apps while re-writing as little code as possible? Thank you.

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  • How do I start a service which is defined in a different package?

    - by Brad Hein
    I have two apps, one runs in namespace com.gtosoft.voyager and the other is com.gtosoft.dash. From com.gtosoft.dash I would like to start up the service which is defined in com.gtosoft.voyager... I think I need an intent, but what arg(s) would I pass to the intent before kicking it off with startService()? If they were in the same package I could just use Intent svc=new Intent (SettingsActivity.this,VoyagerService.class); startService(svc); Snippet of Manifest which defines the service <application android:icon="@drawable/voyagercarlogo" android:label="@string/app_name" android:debuggable="false"> <provider android:name="com.gtosoft.voyager.VoyagerCProvider" android:authorities="com.gtosoft.voyager"/> <service android:name=".VoyagerService"/> <activity android:name=".SettingsActivity" android:label="Voyager" android:configChanges="keyboardHidden|orientation"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity>

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  • How to tell which thread(s) are producing all the garbage?

    - by Brad Hein
    I have an app with about 15 threads. Most do mundane tasks and sleep most of their lives. Others collect information and cache it in hashmaps. The hashmaps grow to a moderate size and level out. The number of keys and size of value remains constant, but the contents of the values changes (at 33 keys per second average). When I start my app, I notice the garbage collection interval goes from minutes to once per second, and the amount of garbage is 700k+ each time. In fact as I was writing this, it caused my phone to reboot with an error "Referencetable Overflow". Here's my question: Are there any tricks to identifying which threads are producing the garbage, or even finding out more about what garbage they are producing?

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  • Should I be using assert in my PHP code?

    - by Darryl Hein
    A co-worker has added the assert command a few times within our libraries in places where I would have used an if statement and thrown an exception. (I had never even heard of assert before this.) Here is an example of how he used it: assert('isset($this->records); /* Records must be set before this is called. */'); I would have done: if ( ! isset($this->records) { throw new Exception('Records must be set before this is called'); } From reading the PHP docs on assert, it looks like it's recommended that make sure assert is active and add a handler before using assert. I can't find a place where he's done this. So, my question is, is using assert a good idea given the above and should I be using it more often instead of if's and exceptions?

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  • Converting PDF to PCL5 on Windows?

    - by Hein du Plessis
    In my application, I need to convert PDF docs to PCL5 generic files to send to FTP PCL capable printers. Printing to file would be a last resort, I would prefer a small-footprint command line tool or API that will do the job. I've seen some mention of doing this on Linux using Ghostscript, but I've got no idea how to replicate this on windows. Many thanks

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  • Is there a simpler way to redirect using a route while adding paramters in Kohana?

    - by Darryl Hein
    I find myself doing the following or similar quite often: Request::instance()->redirect(Route::get('route')->uri(array('action' => 'action'))); Or: Request::instance()->redirect(Route::get(Route::name(Request::instance()->route))->uri(array('action' => 'action'))); I'm wondering if there's any short, easier, simpler way of doing this. I love the Route functionality, but it makes for some long lines of PHP.

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  • EnumJobs not returning Copies & Total Pages

    - by Hein du Plessis
    I'm using Windows API's EnumJobs to find the PageCount and Copies of a print job, but I found that these fields are almost always zero when called on a print server. Although it could be my timing is out, because the number of pages increment as the job prints and once it's done the print job cannot be accessed. So there is about half a nanosecond when the values in EnumJobs is correct before it dissapears. I've been scouring the web but can't find any help on this, just other people with similar problems. Anybody with experience with EnumJobs or can suggest other means of determining the total number of pages printed?

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  • What data is sent to Google Analytics?

    - by Darryl Hein
    Has anyone found any documentation or research about what data is transfered to Google Analytics when it's added to a site. The main thing I'm wondering about is post data, but the details of exactly what is sent would be useful. I'm considering implementing it on a sites that have a lot of private data on them. I'm wondering what data Google will capture, if any. (The sites are login only.) I'm needing proof so I can provided to the users.

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  • Recreating the Apple Store's summary that moves with the page scrolling

    - by Darryl Hein
    I'm looking to create something like what Apple has on their online store for displaying the summary of your computer and total as seen here. I'm guessing this is JavaScript, but it'd be even cooler if it could be done in CSS. Basically I'd like something scrolls with the page like position:fixed, but I don't want it to start moving until the user has scroll past a certain position. I'm using jQuery, so a jQuery plugin would be perfect as well.

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  • Best way to package a class for use in another app?

    - by Brad Hein
    I've written an Android app wich various abstract classes that perform useful functions. These functions could be leveraged in other apps. I want to share a class module with another programmer, but I don't want to share the source code. I would like to share a .class file but I'm not sure how to do the following: Compile an Android .java file into .class What does the receiver of the .class file have to do to use that .class in their project? (using Eclipse environment) Thank you very much

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  • When running UPDATE ... datetime = NOW(); will all rows updated have the same date/time?

    - by Darryl Hein
    When you run something similar to: UPDATE table SET datetime = NOW(); on a table with 1 000 000 000 records and the query takes 10 seconds to run, will all the rows have the exact same time (minutes and seconds) or will they have different times? In other words, will the time be when the query started or when each row is updated? I'm running MySQL, but I'm thinking this applies to all dbs.

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  • Which is faster: in_array() or a bunch of expressions in PHP?

    - by Darryl Hein
    Is it faster to do the following: if ($var != 'test1' && $var != 'test2' && $var != 'test3' && $var != 'test4') { ... } Or: if (!in_array($var, array('test1', 'test2', 'test3', 'test4') { ... } Is there a number of values at which point it's faster to do one or the other? (In this case, the array used in the second option doesn't alreay exist.)

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