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  • problem FFmpeg avcodec_register_all iphone

    - by samantha
    Hi, I need to use ffmpeg for encodig. I have all *.a. My problem is tha when I use avcodec_register_all() xcode give me this error: "_deflate", referenced from: _encode_frame in libavcodec.a(pngenc.o) _encode_frame in libavcodec.a(pngenc.o) _encode_frame in libavcodec.a(pngenc.o) _encode_frame in libavcodec.a(lclenc.o) _encode_frame in libavcodec.a(lclenc.o) _encode_frame in libavcodec.a(zmbvenc.o) "_deflateEnd", referenced from: _flashsv_encode_end in libavcodec.a(flashsvenc.o) _encode_frame in libavcodec.a(pngenc.o) _encode_end in libavcodec.a(lclenc.o) _encode_end in libavcodec.a(zmbvenc.o) "_compress", referenced from: _encode_strip in libavcodec.a(tiffenc.o) (maybe you meant: _mp3_header_compress_bsf$non_lazy_ptr, _mp3_header_compress_bsf ) "_vorbis_analysis_init", referenced from: _oggvorbis_encode_init in libavcodec.a(libvorbis.o) "_lame_set_bWriteVbrTag", referenced from: _MP3lame_encode_init in libavcodec.a(libmp3lame.o) "_lame_set_VBR", referenced from: _MP3lame_encode_init in libavcodec.a(libmp3lame.o) "_crc32", referenced from: _png_write_chunk in libavcodec.a(pngenc.o) _png_write_chunk in libavcodec.a(pngenc.o) _png_write_chunk in libavcodec.a(pngenc.o) "_x264_encoder_headers", referenced from: _X264_init in libavcodec.a(libx264.o) "_lame_encode_buffer", referenced from: _MP3lame_encode_frame in libavcodec.a(libmp3lame.o) "_x264_encoder_encode", referenced from: _X264_frame in libavcodec.a(libx264.o) "_vorbis_comment_add_tag", referenced from: _oggvorbis_encode_init in libavcodec.a(libvorbis.o) "_theora_encode_tables", referenced from: _encode_init in libavcodec.a(libtheoraenc.o) "_vorbis_block_init", referenced from: _oggvorbis_encode_init in libavcodec.a(libvorbis.o) "_x264_nal_encode", referenced from: _X264_frame in libavcodec.a(libx264.o) _X264_init in libavcodec.a(libx264.o) "_uncompress", referenced from: _decode_frame in libavcodec.a(cscd.o) _decode_frame in libavcodec.a(dxa.o) _svq3_decode_init in libavcodec.a(h264.o) _decode_frame in libavcodec.a(tiff.o) "_xvid_plugin_2pass2", referenced from: _ff_xvid_rate_control_init in libavcodec.a(libxvid_rc.o) _ff_xvid_rate_estimate_qscale in libavcodec.a(libxvid_rc.o) _ff_xvid_rate_estimate_qscale in libavcodec.a(libxvid_rc.o) _ff_xvid_rate_control_uninit in libavcodec.a(libxvid_rc.o) _xvid_plugin_2pass2$non_lazy_ptr in libavcodec.a(libxvidff.o) (maybe you meant: _xvid_plugin_2pass2$non_lazy_ptr) "_lame_set_num_channels", referenced from: _MP3lame_encode_init in libavcodec.a(libmp3lame.o) "_lame_set_VBR_q", referenced from: _MP3lame_encode_init in libavcodec.a(libmp3lame.o) "_vorbis_analysis_buffer", referenced from: _oggvorbis_encode_frame in libavcodec.a(libvorbis.o) "_compress2", referenced from: _flashsv_encode_frame in libavcodec.a(flashsvenc.o) "_inflateEnd", referenced from: _decode_frame in libavcodec.a(pngdec.o) _flashsv_decode_end in libavcodec.a(flashsv.o) _decode_end in libavcodec.a(lcldec.o) _decode_end in libavcodec.a(tscc.o) _decode_end in libavcodec.a(zmbv.o) "_lame_encode_buffer_interleaved", referenced from: _MP3lame_encode_frame in libavcodec.a(libmp3lame.o) "_theora_comment_clear", referenced from: _encode_init in libavcodec.a(libtheoraenc.o) "_x264_encoder_close", referenced from: _X264_close in libavcodec.a(libx264.o) "_inflate", referenced from: _decode_frame in libavcodec.a(pngdec.o) _flashsv_decode_frame in libavcodec.a(flashsv.o) _flashsv_decode_frame in libavcodec.a(flashsv.o) _decode_frame in libavcodec.a(lcldec.o) _decode_frame in libavcodec.a(lcldec.o) _decode_frame in libavcodec.a(lcldec.o) _decode_frame in libavcodec.a(tscc.o) _decode_frame in libavcodec.a(zmbv.o) "_theora_comment_init", referenced from: _encode_init in libavcodec.a(libtheoraenc.o) "_vorbis_info_init", referenced from: _oggvorbis_encode_init in libavcodec.a(libvorbis.o) "deflateInit2", referenced from: _encode_frame in libavcodec.a(pngenc.o) "_deflateReset", referenced from: _encode_frame in libavcodec.a(lclenc.o) _encode_frame in libavcodec.a(zmbvenc.o) "_theora_encode_init", referenced from: _encode_init in libavcodec.a(libtheoraenc.o) "_lame_get_framesize", referenced from: _MP3lame_encode_init in libavcodec.a(libmp3lame.o) "_vorbis_analysis", referenced from: _oggvorbis_encode_frame in libavcodec.a(libvorbis.o) "_inflateReset", referenced from: _flashsv_decode_frame in libavcodec.a(flashsv.o) _decode_frame in libavcodec.a(lcldec.o) _decode_frame in libavcodec.a(lcldec.o) _decode_frame in libavcodec.a(tscc.o) _decode_frame in libavcodec.a(zmbv.o) "_lame_set_disable_reservoir", referenced from: _MP3lame_encode_init in libavcodec.a(libmp3lame.o) "_inflateSync", referenced from: _flashsv_decode_frame in libavcodec.a(flashsv.o) "_vorbis_info_clear", referenced from: _oggvorbis_encode_close in libavcodec.a(libvorbis.o) "_theora_encode_header", referenced from: _encode_init in libavcodec.a(libtheoraenc.o) "_theora_clear", referenced from: _encode_close in libavcodec.a(libtheoraenc.o) "_theora_info_clear", referenced from: _encode_init in libavcodec.a(libtheoraenc.o) "_xvid_plugin_lumimasking", referenced from: _xvid_plugin_lumimasking$non_lazy_ptr in libavcodec.a(libxvidff.o) (maybe you meant: _xvid_plugin_lumimasking$non_lazy_ptr) "_theora_encode_comment", referenced from: _encode_init in libavcodec.a(libtheoraenc.o) "_lame_set_brate", referenced from: _MP3lame_encode_init in libavcodec.a(libmp3lame.o) _MP3lame_encode_init in libavcodec.a(libmp3lame.o) "_theora_encode_YUVin", referenced from: _encode_frame in libavcodec.a(libtheoraenc.o) "_lame_init", referenced from: _MP3lame_encode_init in libavcodec.a(libmp3lame.o) "_lame_set_mode", referenced from: _MP3lame_encode_init in libavcodec.a(libmp3lame.o) "deflateInit", referenced from: _encode_init in libavcodec.a(lclenc.o) _encode_init in libavcodec.a(zmbvenc.o) "_vorbis_encode_setup_managed", referenced from: _oggvorbis_encode_init in libavcodec.a(libvorbis.o) "_lame_set_quality", referenced from: _MP3lame_encode_init in libavcodec.a(libmp3lame.o) _MP3lame_encode_init in libavcodec.a(libmp3lame.o) "_vorbis_analysis_blockout", referenced from: _oggvorbis_encode_frame in libavcodec.a(libvorbis.o) _oggvorbis_encode_frame in libavcodec.a(libvorbis.o) "_vorbis_analysis_wrote", referenced from: _oggvorbis_encode_frame in libavcodec.a(libvorbis.o) _oggvorbis_encode_frame in libavcodec.a(libvorbis.o) _oggvorbis_encode_close in libavcodec.a(libvorbis.o) "inflateInit", referenced from: _decode_frame in libavcodec.a(pngdec.o) _flashsv_decode_init in libavcodec.a(flashsv.o) _decode_init in libavcodec.a(lcldec.o) _decode_init in libavcodec.a(tscc.o) _decode_init in libavcodec.a(zmbv.o) "_vorbis_comment_clear", referenced from: _oggvorbis_encode_init in libavcodec.a(libvorbis.o) "_vorbis_bitrate_addblock", referenced from: _oggvorbis_encode_frame in libavcodec.a(libvorbis.o) "_lame_set_in_samplerate", referenced from: _MP3lame_encode_init in libavcodec.a(libmp3lame.o) "_vorbis_encode_ctl", referenced from: _oggvorbis_encode_init in libavcodec.a(libvorbis.o) "_x264_param_default", referenced from: _X264_init in libavcodec.a(libx264.o) "_theora_info_init", referenced from: _encode_init in libavcodec.a(libtheoraenc.o) "_vorbis_encode_setup_init", referenced from: _oggvorbis_encode_init in libavcodec.a(libvorbis.o) "_vorbis_comment_init", referenced from: _oggvorbis_encode_init in libavcodec.a(libvorbis.o) "_vorbis_bitrate_flushpacket", referenced from: _oggvorbis_encode_frame in libavcodec.a(libvorbis.o) _oggvorbis_encode_frame in libavcodec.a(libvorbis.o) "_xvid_plugin_single", referenced from: _xvid_plugin_single$non_lazy_ptr in libavcodec.a(libxvidff.o) (maybe you meant: _xvid_plugin_single$non_lazy_ptr) "_xvid_global", referenced from: _ff_xvid_encode_init in libavcodec.a(libxvidff.o) "_xvid_encore", referenced from: _ff_xvid_encode_close in libavcodec.a(libxvidff.o) _ff_xvid_encode_init in libavcodec.a(libxvidff.o) _ff_xvid_encode_frame in libavcodec.a(libxvidff.o) "_vorbis_encode_setup_vbr", referenced from: _oggvorbis_encode_init in libavcodec.a(libvorbis.o) "_lame_set_out_samplerate", referenced from: _MP3lame_encode_init in libavcodec.a(libmp3lame.o) "_lame_init_params", referenced from: _MP3lame_encode_init in libavcodec.a(libmp3lame.o) "_vorbis_block_clear", referenced from: _oggvorbis_encode_close in libavcodec.a(libvorbis.o) "_lame_encode_flush", referenced from: _MP3lame_encode_frame in libavcodec.a(libmp3lame.o) "_x264_encoder_open", referenced from: _X264_init in libavcodec.a(libx264.o) "_lame_close", referenced from: _MP3lame_encode_init in libavcodec.a(libmp3lame.o) _MP3lame_encode_close in libavcodec.a(libmp3lame.o) "_vorbis_dsp_clear", referenced from: _oggvorbis_encode_close in libavcodec.a(libvorbis.o) "_vorbis_analysis_headerout", referenced from: _oggvorbis_encode_init in libavcodec.a(libvorbis.o) "_theora_encode_packetout", referenced from: _encode_frame in libavcodec.a(libtheoraenc.o) _encode_close in libavcodec.a(libtheoraenc.o) ld: symbol(s) not found collect2: ld returned 1 exit status Also whene i use [code] codec = avcodec_find_encoder(CODEC_ID_H264); //CODEC_ID_H264 //codec = avcodec_find_encoder_by_name("mpeg1"); if (!codec) { fprintf(stderr, "codec not found\n"); exit(1); }[/code] codec is always null where is my error? best regards

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  • problem with awk script

    - by Samantha
    Hello, when I call my awk script, I keep getting an error : sam@sam-laptop:~/shell/td4$ awk -f agenda.awk -- -n Robert agenda.txt awk: agenda.awk:6: printf "Hello" awk: agenda.awk:6: ^ syntax error the script contains this : #!/usr/bin/awk BEGIN { } printf "Hello" END { } Thank you

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  • gethostbyname() and valgrind

    - by Samantha
    Hello, I keep getting this error whenever I call gethostbyname() in my C code. ==7983== Invalid read of size 1 ==7983== at 0x412AB2C: ____strtoul_l_internal (strtol_l.c:298) ==7983== by 0x412A46F: strtoul (strtol.c:110) ==7983== by 0x41D427E: inet_aton (inet_addr.c:143) ==7983== by 0x41D8FF3: __nss_hostname_digits_dots (digits_dots.c:144) ==7983== by 0x41DD0F9: gethostbyname (getXXbyYY.c:109) ==7983== by 0x804BE6F: connexion_function (in ***************) ==7983== by 0x8049A8F: main (in ***************) Any ideas ? Thanks,

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  • how to properly free a char **table in C

    - by Samantha
    Hello, I need your advice on this piece of code: the table fields options[0], options[1] etc... don't seem to be freed correctly. Thanks for your answers int main() { .... char **options; options = generate_fields(user_input); for(i = 0; i < sizeof(options) / sizeof(options[0]); i++) { free(options[i]); options[i] = NULL; } free(options); } char ** generate_fields(char *) { char ** options = malloc(256*sizeof(char *)); ... return options; }

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  • How can I disable multiple links with jQuery?

    - by Samantha J
    I have the following HTML: <a title="Login" data-href="/MyAccount/Access/Login" data-title="Admin" data-entity="n/a" id="loginLink" class="nav-button dialogLink"><b>Login</b></a> <a title="Register" data-href="/MyAccount/Access/Register" data-title="Admin" data-entity="n/a" id="registerLink" class="nav-button dialogLink"><b>Register</b></a> When a user clicks on the #loginLink or #registerLink I would like to disable the link and call a dialog script. I created the following function: $("#loginLink, #registerLink") .click(function () { $('#loginLink').prop('disabled', true); $('#registerLink').prop('disabled', true); dialog(this); }); It calls the dialog correctly but doesn't disable the links and if I click the buttons more than once it calls up more than one dialog box. Is there something I am doing wrong? I can't see why it would not work.

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  • secure client/server program in C with OpenSSL

    - by Samantha
    Hello, I'm trying to write a secure client/server program in C with OpenSSL. I've found a code sample at http://www.rtfm.com/openssl-examples/ but I get this error: server: SSL read problem client: Certificate doesn't verify I think the problem is with the certificate generation, but I cannot find it. Any idea? Thanks

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  • How to transform multiple line into one line in bash stdout ?

    - by Samantha
    Hello, I sometimes do this in my shell : sam@sam-laptop:~/shell$ ps aux | grep firefox | awk '{print $2}' 2681 2685 2689 4645 $ kill -9 2681 2685 2689 4645 Is there a way I can transform the multiple lines containing the PIDs into one line separated by spaces ? (It's a little bit annoying to type the PIDs every time and I really would like to learn :) ) Thanks a lot.

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  • "range of" in if condition C programming

    - by Samantha
    Hello, I'm working on a simple C prorgam, and i'ms tuck with an if test: int line_number = 0; if ((line_number >= argv[2]) && (line_number <= argv[4]) ) gcc says: cp.c:25: warning: comparison between pointer and integer cp.c:25: warning: comparison between pointer and integer What can I do to properly write the range of line I want to deal with ? Thank you!

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  • problem with closing sockets

    - by Samantha
    Hi, I'm trying to write a client/server program with threads. I close the socket once the connexion is finished. The servers gets plenty of new connexions, and the socket number (file descriptor) increases very quickly: after 5 minutes running I was already at around file descriptor number 800! Is this a normal thing? Do threads share file descriptors? When I do close(sockfd); is the number released immediatly or after a some time? PS: I used to do with fork(), and I didn't have this issue. Thanks

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  • iphone encode problem with ffmpeg

    - by samantha
    Hi, I need to encode a video from image. I use ffmpeg and compiling rigth. My problem is that when i try to opne video with quicktime on iphone, this give me a message "this movie format is not supported". I create a file mp4 with this parameter on context: context-time_base.num = 1; context-time_base.den = 15; context-codec_type = CODEC_TYPE_VIDEO; context-codec_id = CODEC_ID_H264; context-bit_rate = 1000000; context-width = width; context-height = height; context-keyint_min = 10; context-i_quant_factor = 0.71; context-bit_rate_tolerance = 20000; context-rc_max_rate = 100000; context-rc_buffer_size = 8835000; context-qcompress = 0.6; context-qmin = 10; context-qmax = 30; context-max_qdiff = 4; context-gop_size = 30; context->time_base.num = 1; context-time_base.den = 30; context-sample_aspect_ratio = av_d2q(1, 255); context-profile = 30; context-pix_fmt = PIX_FMT_YUV420P; context-flags |= CODEC_FLAG_LOOP_FILTER; where is my mistake?? thanks

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  • Using System.DateTime in a C# Lambda expression gives an exception

    - by Samantha J
    I tried to implement a suggestion that came up in another question: Stackoverflow question Snippet here: public static class StatusExtensions { public static IHtmlString StatusBox<TModel>( this HtmlHelper<TModel> helper, Expression<Func<TModel, RowInfo>> ex ) { var createdEx = Expression.Lambda<Func<TModel, DateTime>>( Expression.Property(ex.Body, "Created"), ex.Parameters ); var modifiedEx = Expression.Lambda<Func<TModel, DateTime>>( Expression.Property(ex.Body, "Modified"), ex.Parameters ); var a = "a" + helper.HiddenFor(createdEx) + helper.HiddenFor(modifiedEx); return new HtmlString( "Some things here ..." + helper.HiddenFor(createdEx) + helper.HiddenFor(modifiedEx) ); } } When implemented I am getting the following exception which I don't really understand. The exception points to the line starting with "var createdEx =" System.ArgumentException was unhandled by user code Message=Expression of type 'System.Nullable`1[System.DateTime]' cannot be used for return type 'System.DateTime' Source=System.Core StackTrace: Can anyone help me out and suggest what I could do to resolve the exception?

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  • How can I check if a value exists in a list using C#

    - by Samantha J
    I have the following code that gives me a list of id and names from the new ASP.NET MVC5 Identity: var identityStore = new IdentityStore(); var users = ( from user in identityStore.DbContext.Set<User>() select new { id = user.Id, name = user.UserName } ); How could I modify this so that it allows me to check if a UserName exists? Here's the user class: public class User : IUser { public User(); public User(string userName); [Key] public string Id { get; set; } public virtual ICollection<UserLogin> Logins { get; set; } public virtual UserManagement Management { get; set; } public virtual ICollection<UserRole> Roles { get; set; } public string UserName { get; set; } }

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  • How can I use Generics to create a way of making an IEnumerable from an enum?

    - by Samantha J
    Given an enum like this: public enum City { London = 1, Liverpool = 20, Leeds = 25 } public enum House { OneFloor = 1, TwoFloors = 2 } I am using the following code to give me an IEnumerable: City[] values = (City[])Enum.GetValues(typeof(City)); var valuesWithNames = from value in values select new { value = (int)value, name = value.ToString() }; The code works very good however I have to do this for quite a lot of enums. Is there a way I could create a generic way of doing this?

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  • SQL select statement - returning records starting with variable length string

    - by alpheus
    I am using an alphabetical sorting feature and need a SQL statement to return records beginning with a variable length string. However, records also need to be returned if there are periods, spaces, or dashes between any of the characters in the string. For example, the string could be "M" (easy). Or "MA" (in which case it needs to return records starting with "MA", "M.A", "M A", and "M-A"). Or "MAA", and so on. This is the statement I have so far: "SELECT * from table where LEFT(name," + value.Length + ")='" + value + "'" But I can't work out how to get it to return results where there are periods, spaces or dashes in name. Any help constructing the statement would be great.

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  • MySQL: Selecting One Record When Others Have Same Data

    - by LoganFrederick
    I have a table of cities that all share the same area code: 367 01451 Harvard Worcester Massachusetts MA 978 Eastern 368 01452 Hubbardston Worcester Massachusetts MA 978 Eastern 369 01453 Leominster Worcester Massachusetts MA 978 Eastern The table has multiple area codes, all with multiple cities. What I'd like to do is only select one city from each area code and delete any extra cities from duplicate area codes. What would be the best query to accomplish this? I believe: http://stackoverflow.com/questions/596629/mysql4-sql-for-selecting-one-or-zero-record Is coming close to what I need but didn't quite get what/how those answers were working. Note The "978" row is the "area_code" row, table name is "zip_code".

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  • Egy DBA napja - Utópia, vagy sem?

    - by lsarecz
    Ma délelott a HOUG BI/DW és DB szakmai napján tartottam egy eloadást arról, hogyan kellene egy DBA-nak dolgoznia manapság. A lényeg az volt, hogy az üzlet legjobb kiszolgálása érdekében célszeru a felhasználók és az alkalmazás oldaláról megközelíteni a kérdést. Azaz monitorozzuk a felhasználók elégedettségét, majd ha valami nem stimmel fúrjunk le alsóbb rétegekbe (MW, DB, OS, HW, Storage, Network), és ott folytassuk a diagnosztikát. Meglepetésemre az eloadást követoen a DB szakosztály vezetoje úgy kommentálta az eloadást, hogy ez még utópisztikus. Ma délután egy a hallgatók között ülo üzemeltetési igazgató e-mail-ben jelezte, hogy ezzel o sem ért egyet, mert ok már most is így üzemeltetnek, még ha nem is minden elemében a Grid Control-t használják. És mi sem bizonyítja jobban, hogy ez az üzemeltetési model nem utópia, mint hogy az Oracle Enterprise Manager 11g tökéletes támogatást ad minderre. Akit ezek után érdekel az eloadásom, az innen letöltheti: 1. fele, 2. fele.

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  • Technology Fórum eloadások

    - by Lajos Sárecz
    Ma délelott lezajlott az Oracle Technology Fórum rendezvény. A Database szekcióban Tóth Csaba tartotta a nyitó eloadást, melyben az IT költségek csökkentési lehetoségeirol beszélt Oracle Database 11g felhasználásával. Ot követoen én beszéltem az Oracle Enterprise Manager által kínált extrém menedzsment képességekrol, amely ma már nem csak adatbázis menedzsmentet jelent, hanem a teljes alkalmazás infrastruktúra üzemeltetésre koncentrál, kiemelt figyelmet fordítva az üzlet valós kiszolgálására. Szünet elott még Mosolygó Feri tartott egy eloadást az adatbázis-kezelo és a felho kapcsolatáról, majd szünet után Fekete Zoltán folytatta a Database Machine bemutatásával. Zoli után ismét Mosolygó Feri tartott eloadást ezúttal az adatbázis biztonságról, majd én zártam a napot a kockázatmentes változáskezelés témával.

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  • Glume amuzante cu copii

    - by interesante
    Tatal chel; o fetita o intreaba pe mama sa: - Mama, de ce tata e asa de chel? - Deoarece are multa minte si i-a cazut parul. - Dar tu de ce ai asa de mult par in cap? - Mananca si taci!Era odata un tanar care cand era mic vroia sa se faca un "mare" scriitor. Cand i s-a cerut sa defineasca "mare" a spus: "Vreau sa scriu chestii pe care sa le citeasca toata lumea, chestii la care lumea sa reactioneze emotional, lucruri care sa-i faca sa strige, sa planga, sa urle, sa se zbata de durere, disperare si manie!" Acum lucreaza pentru Microsoft si scrie mesaje de eroare...Mai multa distractie pe un website cu jocuri flash care sa te captiveze.Un barbat zbura cu un balon cu aer cald si la un moment dat si-a dat seama ca s-a ratacit. A coborat pana aproape de pamant si a zarit o femeie pe o pajiste. Apropiindu-se de ea, el i-a strigat: -Fii amabila, poti sa ma ajuti? Am promis unui prieten ca ma intalnesc cu el, dar nu mai stiu unde ma aflu. Femeia i-a raspuns: -Te afli intr-un balon cu aer cald, la vreo 10 metri inaltime. Te gasesti intre 40 si 41 grade latitudine nord, si intre 59 si 60 de grade logitudine vest. -Ei, probabil esti inginera de profesie! spuse omul din balon. -Asa este, raspunse femeia, dar de unde stii? -Pai tot ce mi-ai spus este corect din punct de vedere tehnic, dar tot n-am idee ce-as putea face cu informatiile de la tine si sunt tot in ceata. Sa fiu sincer, nu m-ai ajutat deloc. Ba chiar pot spune ca m-ai tinut pe loc degeaba. Atunci femeia i-a raspuns: -Dar tu trebuie sa fii director! -Asa este, raspunse barbatul, dar de unde stii? -Pai nu stii unde te afli si nici incotro te indrepti. Te-ai ridicat la inaltime profitand de o flama care a incins situatia. Ai facut o promisiune pe care nu stii cum ai sa ti-o tii si te astepti ca oamenii de sub tine sa-ti rezolve problema. Adevarul este ca te afli exact in locul unde te aflai cand am inceput discutia, acum 1 minut, dar brusc constati acum ca asta este din vina mea.

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  • ArchBeat Link-o-Rama for 2012-09-07

    - by Bob Rhubart
    Oracle Technology Network Architect Day - Boston, MA - 9/12/2012 Sure, you could ask a voodoo priestess for help in improving your solution architecture skills. But there's the whole snake thing, and the zombie thing, and other complications. So why not keep it simple and register for Oracle Technology Network Architect Day in Boston, MA. There's no magic, just a full day of technical sessions covering Cloud, SOA, Engineered Systems, and more. Registration is free. Wednesday September 12, 2012 8:00 a.m. – 5:00 p.m. Boston Marriott Burlington, One Burlington Mall Road, Burlington, MA 01803 Attend OTN Architect Day in Los Angeles – by Architects, for Architects – October 25 The OTN Architect Day roadshow stops in Boston next week, then it's on to Los Angeles for another all architecture, all day event on Thursday October 25, 2012 at the Sofitel Los Angeles, 555 Beverly Boulevard, Los Angeles, CA 90048. Like all Architect Day events, this one is absolutley free, so register now. Webcast: Oracle WebCenter in Action: Hitachi Data Systems Catch this live webcast on Thursday, September 13, 2012 (10am PT / 1pm ET) to learn from speakers from Hitachi Data Systems, LingoTek, and Oracle about how Hitachi used Oracle WebCenter to improve the web experience for its international customers. Article Index: Architect Community Column in Oracle Magazine Did you know that Oracle Magazine features a regular column devoted specifically to the architect community? Every column includes insight and expertise from architects who regularly deal with the issues architects face. Click here to see a complete list of articles. ADF EMG Sunday at OOW 2012 (30. Sep 2012) - A day full of content | Frank Nimphius Frank Nimphius's shares details on Chris Muir's ADF EMG series of sessions during User Group Sunday at OOW, Sept 30, in Moscone West room 305. The Role of Oracle VM Server for SPARC in a Virtualization Strategy New OTN article from Matthias Pfützner. Countdown to Oracle OpenWorld 2012 | Oracle WebCenter Blog A helpful list of OOW sessions focused on Oracle WebCenter. Oracle Exalogic X2-2 walkthrough | Jan van Zoggel "For those of us not lucky enough to have one at home," Jan van Zoggel recommends this "very cool" video featuring "a detailed walkthrough explaining each component of a Oracle Exalogic X2-2 machine," presented by Oracle Exalogic VP Development Brad Cameron. September OTN Member Offers | OTN Blog Save big on books from top tech publishers with these discounts for OTN members. Thought for the Day "Only Robinson Crusoe had everything done by Friday." — Unknown Source: Quote Garden

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  • Simulating smooth movement along a line after calculating a collision containing a restitution of zero in 2D

    - by Casey
    [for tl;dr see after listing] //...Code to determine shapes types involved in collision here... //...Rectangle-Line collision detected. if(_rbTest->GetCollisionShape()->Intersects(*_ground->GetCollisionShape())) { //Convert incoming shape to a line. a2de::Line l(*dynamic_cast<a2de::Line*>(_ground->GetCollisionShape())); //Get line's normal. a2de::Vector2D normal_vector(l.GetSlope().GetY(), -l.GetSlope().GetX()); a2de::Vector2D::Normalize(normal_vector); //Accumulate forces involved. a2de::Vector2D intermediate_forces; a2de::Vector2D normal_force = normal_vector * _rbTest->GetMass() * _world->GetGravityHandler()->GetGravityValue(); intermediate_forces += normal_force; //Calculate final velocity: See [1] double Ma = _rbTest->GetMass(); a2de::Vector2D Ua = _rbTest->GetVelocity(); double Mb = _ground->GetMass(); a2de::Vector2D Ub = _ground->GetVelocity(); double mCr = Mb * _ground->GetRestitution(); a2de::Vector2D collision_velocity( ((Ma * Ua) + (Mb * Ub) + ((mCr * Ub) - (mCr * Ua))) / (Ma + Mb)); //Calculate reflection vector: See [2] a2de::Vector2D reflect_velocity( -collision_velocity + 2 * (a2de::Vector2D::DotProduct(collision_velocity, normal_vector)) * normal_vector ); //Affect velocity to account for restitution of colliding bodies. reflect_velocity *= (_ground->GetRestitution() * _rbTest->GetRestitution()); _rbTest->SetVelocity(reflect_velocity); //THE ULTIMATE ISSUE STEMS FROM THE FOLLOWING LINE: //Move object away from collision one pixel to prevent constant collision. _rbTest->SetPosition(_rbTest->GetPosition() + normal_vector); _rbTest->ApplyImpulse(intermediate_forces); } Sources: (1) Wikipedia: Coefficient of Restitution: Speeds after impact (2) Wikipedia: Specular Reflection: Direction of reflection First, I have a system in place to account for friction (that is, a coefficient of friction) but is not used right now (in addition, it is zero, which should not affect the math anyway). I'll deal with that after I get this working. Anyway, when the restitution of either object involved in the collision is zero the object stops as required, but if movement along the same direction (again, irrespective of the friction value that isn't used) as the line is attempted the object moves as if slogging through knee deep snow. If I remove the line of code in question and the object is not push away one pixel the object barely moves at all. All because the object collides, is stopped, is pushed up, collides, is stopped...etc. OR collides, is stopped, collides, is stopped, etc... TL;DR How do I only account for a collision ONCE for restitution purposes (BONUS: but CONTINUALLY for frictional purposes, to be implemented later)

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  • Weblogic Bea 10.0 M1 and WorkManager

    - by ma-ver-ick
    Hi there! I have to execute long running threads in a WebLogic Bea 10.0 M1 server environment. I tried to use WorkManagers for this. Using an own WorkManager allows me to specify my own thread timeout (MaxThreadStuckTime) instead of adjusting the timeout for the whole business application. My setup is as follows: weblogic-ejb-jar.xml: <?xml version="1.0" encoding="UTF-8"?> <weblogic-ejb-jar xmlns="http://www.bea.com/ns/weblogic/90" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.bea.com/ns/weblogic/90 http://www.bea.com/ns/weblogic/90/weblogic-ejb-jar.xsd"> <weblogic-enterprise-bean> <ejb-name>TestBean</ejb-name> <resource-description> <res-ref-name>myWorkManager</res-ref-name> <jndi-name>wm/myWorkManager</jndi-name> </resource-description> </weblogic-enterprise-bean> </weblogic-ejb-jar> weblogic-application.xml: <?xml version="1.0" encoding="UTF-8"?> <weblogic xmlns="http://www.bea.com/ns/weblogic/90" xmlns:j2ee="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.bea.com/ns/weblogic/90 http://www.bea.com/ns/weblogic/90/weblogic.xsd"> <work-manager> <name>myWorkManager</name> <ignore-stuck-threads>1</ignore-stuck-threads> </work-manager> </weblogic> and the Bean: import javax.annotation.Resource; import javax.ejb.Stateful; import weblogic.work.WorkManager; @Stateful(mappedName = "TestBean") public class TestBean implements TestBeanRemote { @Resource(name = "myWorkManager") private WorkManager myWorkManager; public void test() { myWorkManager.schedule(new Runnable() { public void run() { while (true) { System.out.println("test: +++++++++++++++++++++++++"); try { Thread.sleep(45000); } catch (InterruptedException e) { e.printStackTrace(); } } } }); } } When I try to deploy this things, the server gives me the following exceptions: [EJB:011026]The EJB container failed while creating the java:/comp/env namespace for this EJB deployment. weblogic.deployment.EnvironmentException: [EJB:010176]The resource-env-ref 'myWorkManager' declared in the ejb-jar.xml descriptor has no JNDI name mapped to it. The resource-ref must be mapped to a JNDI name using the resource-description element of the weblogic-ejb-jar.xml descriptor. I try to figure out how to access / use WorkMangers for days now, and still get this or that as an exception. Very frustrating! Thanks in advance!

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  • Need Java Swing HTML canvas with support for integrated swing controls

    - by Iggy Ma
    I would like to create an application in swing in the style of web 2.0 but have the power and functionality of a thick client. I know substance and some other look and feels help with this some, but I was wondering if there is a way I can actually use some kind of html panel / canvas to create the content in html, embedding swing controls in the rendering so as to still use listeners and get the functionality. Anybody know of a way to do this?

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