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Médias (91)

Collections - Formulaire de création rapide

19 février 2013, par kent1

Mis à jour : Février 2013

Langue : français

Type : Image

Tags : plugin, collection, MediaSPIP 0.2

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Les Miserables

4 juin 2012, par kent1

Mis à jour : Février 2013

Langue : English

Type : Texte

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Ne pas afficher certaines informations : page d’accueil

23 novembre 2011, par kent1

Mis à jour : Novembre 2011

Langue : français

Type : Image

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The Great Big Beautiful Tomorrow

28 octobre 2011, par kent1

Mis à jour : Octobre 2011

Langue : English

Type : Texte

Tags : livre, epub, book, livre électronique

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Richard Stallman et la révolution du logiciel libre - Une biographie autorisée (version epub)

28 octobre 2011, par kent1

Mis à jour : Octobre 2011

Langue : English

Type : Texte

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Rennes Emotion Map 2010-11

19 octobre 2011, par kent1

Mis à jour : Juillet 2013

Langue : français

Type : Texte

Tags : map, biomaping, Christian Nold, école, Rennes

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Autres articles (39)

Personnaliser les catégories

21 juin 2013, par etalarma

Formulaire de création d’une catégorie
Pour ceux qui connaissent bien SPIP, une catégorie peut être assimilée à une rubrique.
Dans le cas d’un document de type catégorie, les champs proposés par défaut sont : Texte
On peut modifier ce formulaire dans la partie :
Administration > Configuration des masques de formulaire.
Dans le cas d’un document de type média, les champs non affichés par défaut sont : Descriptif rapide
Par ailleurs, c’est dans cette partie configuration qu’on peut indiquer le (...)
Ajouter notes et légendes aux images

7 février 2011, par kent1

Pour pouvoir ajouter notes et légendes aux images, la première étape est d’installer le plugin "Légendes".
Une fois le plugin activé, vous pouvez le configurer dans l’espace de configuration afin de modifier les droits de création / modification et de suppression des notes. Par défaut seuls les administrateurs du site peuvent ajouter des notes aux images.
Modification lors de l’ajout d’un média
Lors de l’ajout d’un média de type "image" un nouveau bouton apparait au dessus de la prévisualisation (...)
Contribute to translation

13 avril 2011

You can help us to improve the language used in the software interface to make MediaSPIP more accessible and user-friendly. You can also translate the interface into any language that allows it to spread to new linguistic communities.
To do this, we use the translation interface of SPIP where the all the language modules of MediaSPIP are available. Just subscribe to the mailing list and request further informantion on translation.
MediaSPIP is currently available in French and English (...)

1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | ... | 13

Sur d’autres sites (7562)

error in frame size while using ffmpeg

30 septembre 2016, par Rishabh Mishra
I am trying to convert a .mkv video to mp4 but every time it shows error "invalid frame size. Command is
```
ffmpeg -i Narcos.S01E03.720p.WEBRiP.x265.ShAaNiG.mkv -s 1920×1080 -acodec aac -strict -2 -ab 160k -s 1920×1080 -qscale:v 3 -f mp4 S01.Ep03.mp4
```

LibVLC DXVA2 Windows C++ Hardware Acceleration

15 novembre 2016, par Sergiu Vlad

I want to decode a h264 RTSP stream using DXVA2 Accelerated decoder. In VLC it does work but in my code have the following output :

avcodec generic warning: threaded frame decoding is not compatible with DXVA2, disabled

avcodec generic debug: available hardware decoder output format 61 (dxva2_vld)

avcodec generic debug: available hardware decoder output format 128 (d3d11va_vld)

avcodec generic debug: available software decoder output format 12 (yuvj420p)

core generic debug: looking for hw decoder module matching "any": 1 candidates

core generic debug: no hw decoder modules matched

Is this a problem with NV12 conversion ? Is there a way to force DXVA2 ?

Thanks

CODE :

    #include 

#include 

#include 

#include 

#include 

#include <iostream>



#include 

#include <ctime>

#include <vlc></vlc>vlc.h>



// RTSP address

const char* rtspAddress = "rtsp://admin:admin@192.168.0.245/live_st1";

// Video resolution WxH

cv::Size rtspRes(1920, 1080);



struct VideoDataStruct

{

    int param;

};



int done = 0;

libvlc_media_player_t *mp;

unsigned int videoBufferSize = 0;

uint8_t *videoBuffer = 0;



void cbVideoPrerender(void *p_video_data, uint8_t **pp_pixel_buffer, int size)

{

    if (size > videoBufferSize || !videoBuffer)

    {

        printf("Reallocate raw video buffer %d bytes\n", size);

        free(videoBuffer);

        videoBuffer = (uint8_t *)malloc(size);

        videoBufferSize = size;

    }



    // videoBuffer = (uint8_t *)malloc(size);

    *pp_pixel_buffer = videoBuffer;

}

void cbVideoPostrender(void *p_video_data, uint8_t *p_pixel_buffer, int width, int height, int pixel_pitch, int size, int64_t pts)

{

    // Unlocking

    //CloseHandle(hMutex);



}



//static void handleEvent(const libvlc_event_t* pEvt, void* pUserData)

//{

//    libvlc_time_t time;

//    switch (pEvt->type)

//    {

//    case libvlc_MediaPlayerTimeChanged:

//        time = libvlc_media_player_get_time(mp);

//        printf("MediaPlayerTimeChanged %lld ms\n", (long long)time);

//        break;

//    case libvlc_MediaPlayerEndReached:

//        printf("MediaPlayerEndReached\n");

//        done = 1;

//        break;

//    default:

//        printf("%s\n", libvlc_event_type_name(pEvt->type));

//    }

//}



clock_t startTime[8];

int framesReceivedThisSecond[8];



int main()

{





    // VLC pointers

    libvlc_instance_t *inst;

    libvlc_media_t *m;

    void *pUserData = 0;



    VideoDataStruct dataStruct;



    // VLC options

    char smem_options[1000];



    // RV24

    sprintf(smem_options

            , "#transcode{vcodec=RV24}:smem{"

              "video-prerender-callback=%lld,"

              "video-postrender-callback=%lld,"

              "video-data=%lld,"

              "no-time-sync},"

            , (long long int)(intptr_t)(void*)&amp;cbVideoPrerender

            , (long long int)(intptr_t)(void*)&amp;cbVideoPostrender

            , (long long int)(intptr_t)(void*)&amp;dataStruct

            );



    const char * const vlc_args[] = {

        "-I", "dummy",            // Don't use any interface

        "--ignore-config",        // Don't use VLC's config

        "--extraintf=logger",     // Log anything

        "--verbose=4",            // Be verbose

        //        "--ffmpeg-hw",

        //        "-vvv",

        "--ffmpeg-hw",

        "--avcodec-hw=any",

        "--sout", smem_options    // Stream to memory



    };



    // Launch VLC

    inst = libvlc_new(sizeof(vlc_args) / sizeof(vlc_args[0]), vlc_args);



    // Create a new item

    m = libvlc_media_new_location(inst, rtspAddress);







    // Create a media player playing environement

    mp = libvlc_media_player_new_from_media(m);



    //    libvlc_event_manager_t* eventManager = libvlc_media_player_event_manager(mp);

    //    libvlc_event_attach(eventManager, libvlc_MediaPlayerTimeChanged, handleEvent, pUserData);

    //    libvlc_event_attach(eventManager, libvlc_MediaPlayerEndReached, handleEvent, pUserData);

    //    libvlc_event_attach(eventManager, libvlc_MediaPlayerPositionChanged, handleEvent, pUserData);



    //libvlc_video_set_format(mp, "RV24", 240, 320, 240 * 3 );



    // play the media_player

    libvlc_media_player_play(mp);





    // Create a window for displaying the video

    std::string winName("Demo Video");

    cv::namedWindow(winName, cv::WINDOW_AUTOSIZE);



    cv::Mat frame;

    int key = 0;



    // Endless loop, press Esc to quit

    while (key != 27)

    {



        // Check for invalid input

        if (videoBuffer)

        {

            // CV_8UC3 = 8 bits, 3 chanels

            frame = cv::Mat(rtspRes, CV_8UC3, videoBuffer);

        }





        if (frame.rows == 0 || frame.cols == 0)

            continue;



        int stream_number=0;

        framesReceivedThisSecond[stream_number]++;

        long    duration = ( std::clock() - startTime[stream_number] );

        if(duration>1000)

        {

            std::cout&lt;&lt;"\n"&lt;&lt;"FPS "&lt;code></ctime></iostream>

FULL LOG :

core libvlc debug: Copyright © 1996-2016 the VideoLAN team

core libvlc debug: revision 2.2.3-37-g888b7e89

core libvlc debug: configured with ../extras/package/win32/../../../configure  '--enable-update-check' '--enable-lua' '--enable-faad' '--enable-flac' '--enable-theora' '--enable-twolame' '--enable-quicktime' '--enable-avcodec' '--enable-merge-ffmpeg' '--enable-dca' '--enable-mpc' '--enable-libass' '--enable-x264' '--enable-schroedinger' '--enable-realrtsp' '--enable-live555' '--enable-dvdread' '--enable-shout' '--enable-goom' '--enable-caca' '--disable-sdl' '--enable-qt' '--enable-skins2' '--enable-sse' '--enable-mmx' '--enable-libcddb' '--enable-zvbi' '--disable-telx' '--enable-nls' '--host=i686-w64-mingw32' '--build=x86_64-pc-linux-gnu' 'build_alias=x86_64-pc-linux-gnu' 'host_alias=i686-w64-mingw32' 'PKG_CONFIG_PATH=/opt/intel/opencl:' 'PKG_CONFIG_LIBDIR=/home/svlad/DEV/vlc/contrib/i686-w64-mingw32/lib/pkgconfig'

core libvlc debug: using multimedia timers as clock source

core libvlc debug:  min period: 1 ms, max period: 1000000 ms

core libvlc debug: searching plug-in modules

core libvlc debug: loading plugins cache file C:\DEV\VLCStreamProcessor\build-untitled-Desktop_Qt_5_5_1_MSVC2013_32bit-Debug\debug\plugins\plugins.dat

core libvlc debug: recursively browsing `C:\DEV\VLCStreamProcessor\build-untitled-Desktop_Qt_5_5_1_MSVC2013_32bit-Debug\debug\plugins'

core libvlc debug: saving plugins cache C:\DEV\VLCStreamProcessor\build-untitled-Desktop_Qt_5_5_1_MSVC2013_32bit-Debug\debug\plugins\plugins.dat

core libvlc debug: plug-ins loaded: 418 modules

core libvlc debug: translation test: code is "C"

core libvlc debug: CPU has capabilities MMX MMXEXT SSE SSE2 SSE3 SSSE3 SSE4.1 SSE4.2 FPU 

core playlist debug: creating audio output

core audio output debug: looking for audio output module matching "any": 6 candidates

directsound audio output debug: found 2 devices

core audio output debug: using audio output module "directsound"

core playlist debug: keeping audio output

core interface debug: looking for interface module matching "logger,none": 16 candidates

logger interface: VLC media player - 2.2.4 Weatherwax

logger interface: Copyright © 1996-2016 the VideoLAN team

logger interface: 

Warning: if you cannot access the GUI anymore, open a command-line window, go to the directory where you installed VLC and run "vlc -I qt"

logger interface: using logger.

logger interface warning: no log filename provided, using `vlc-log.txt'

logger interface debug: opening logfile `vlc-log.txt'

core libvlc debug: VLC media player - 2.2.4 Weatherwax

core libvlc debug: Copyright © 1996-2016 the VideoLAN team

core libvlc debug: revision 2.2.3-37-g888b7e89

core libvlc debug: configured with ../extras/package/win32/../../../configure  '--enable-update-check' '--enable-lua' '--enable-faad' '--enable-flac' '--enable-theora' '--enable-twolame' '--enable-quicktime' '--enable-avcodec' '--enable-merge-ffmpeg' '--enable-dca' '--enable-mpc' '--enable-libass' '--enable-x264' '--enable-schroedinger' '--enable-realrtsp' '--enable-live555' '--enable-dvdread' '--enable-shout' '--enable-goom' '--enable-caca' '--disable-sdl' '--enable-qt' '--enable-skins2' '--enable-sse' '--enable-mmx' '--enable-libcddb' '--enable-zvbi' '--disable-telx' '--enable-nls' '--host=i686-w64-mingw32' '--build=x86_64-pc-linux-gnu' 'build_alias=x86_64-pc-linux-gnu' 'host_alias=i686-w64-mingw32' 'PKG_CONFIG_PATH=/opt/intel/opencl:' 'PKG_CONFIG_LIBDIR=/home/svlad/DEV/vlc/contrib/i686-w64-mingw32/lib/pkgconfig'

core interface debug: using interface module "logger"

core generic debug: creating audio output

core audio output debug: looking for audio output module matching "any": 6 candidates

directsound audio output debug: found 2 devices

core audio output debug: using audio output module "directsound"

core generic debug: keeping audio output

core input debug: Creating an input for 'rtsp://192.168.0.245/live_st1'

core stream output debug: using sout chain=`transcode{vcodec=RV24}:smem{video-prerender-callback=15667245,video-postrender-callback=15667630,video-data=3471900,no-time-sync},'

core stream output debug: stream=`smem'

core stream out debug: looking for sout stream module matching "smem": 22 candidates

core stream out debug: set config option: sout-smem-video-prerender-callback to 15667245

core stream out debug: set config option: sout-smem-video-postrender-callback to 15667630

core stream out debug: set config option: sout-smem-video-data to 3471900

core stream out debug: set config option: sout-smem-time-sync to (null)

core stream out debug: using sout stream module "stream_out_smem"

core stream output debug: stream=`transcode'

core stream out debug: looking for sout stream module matching "transcode": 22 candidates

core stream out debug: set config option: sout-transcode-vcodec to RV24

stream_out_transcode stream out debug: Checking video codec mapping for RV24 got RV24 

stream_out_transcode stream out debug: codec video=RV24 0x0 scaling: 0.000000 0kb/s

core stream out debug: using sout stream module "stream_out_transcode"

core input debug: using timeshift granularity of 50 MiB, in path 'C:\Users\BCDVideo\AppData\Local\Temp'

core input debug: `rtsp://admin:admin@192.168.0.245/live_st1' gives access `rtsp' demux `' path `admin:admin@192.168.0.245/live_st1'

core input debug: specified demux `any'

core input debug: creating demux: access='rtsp' demux='any' location='admin:admin@192.168.0.245/live_st1' file='\\admin:admin@192.168.0.245\live_st1'

core demux debug: looking for access_demux module matching "rtsp": 12 candidates

live555 demux debug: version 2016.01.12

live555 demux debug: RTP subsession 'video/H264'

core input debug: selecting program id=0

live555 demux debug: setup start: 0.000000 stop:0.000000

live555 demux debug: We have a timeout of 60 seconds

live555 demux debug: spawned timeout thread

live555 demux debug: play start: 0.000000 stop:0.000000

core demux debug: using access_demux module "live555"

core decoder debug: looking for packetizer module matching "any": 23 candidates

packetizer_h264 decoder debug: found NAL_SPS (sps_id=0)

packetizer_h264 decoder debug: found NAL_PPS (pps_id=0 sps_id=0)

core decoder debug: using packetizer module "packetizer_h264"

core input debug: starting in sync mode

core demux meta debug: looking for meta reader module matching "any": 2 candidates

lua demux meta debug: Trying Lua scripts in C:\Users\BCDVideo\AppData\Roaming\vlc\lua\meta\reader

lua demux meta debug: Trying Lua scripts in C:\DEV\VLCStreamProcessor\build-untitled-Desktop_Qt_5_5_1_MSVC2013_32bit-Debug\debug\lua\meta\reader

core demux meta debug: no meta reader modules matched

core input debug: `rtsp://admin:admin@192.168.0.245/live_st1' successfully opened

core input debug: switching to async mode

core input debug: Buffering 0%

core input debug: Buffering 3%

core input debug: Buffering 10%

core stream output debug: adding a new sout input (sout_input:00c21c50)

core input debug: Buffering 13%

stream_out_transcode stream out debug: creating video transcoding from fcc=`h264' to fcc=`RV24'

core input debug: Buffering 16%

core generic debug: looking for decoder module matching "any": 43 candidates

core input debug: Buffering 20%

core input debug: Buffering 23%

avcodec generic debug: CPU flags: 0x0107d3db

core input debug: Buffering 30%

avcodec generic debug: trying to use direct rendering

core input debug: Buffering 33%

avcodec generic debug: allowing 4 thread(s) for decoding

core input debug: Buffering 36%

avcodec generic warning: threaded frame decoding is not compatible with DXVA2, disabled

core input debug: Buffering 40%

avcodec generic debug: avcodec codec (H264 - MPEG-4 AVC (part 10)) started

core input debug: Buffering 43%

avcodec generic debug: using slice thread mode with 4 threads

core input debug: Buffering 50%

core generic debug: using decoder module "avcodec"

core input debug: Buffering 53%

core encoder debug: looking for encoder module matching "any": 20 candidates

core input debug: Buffering 56%

core input debug: Buffering 60%

avcodec encoder debug: CPU flags: 0x0107d3db

core input debug: Buffering 63%

avcodec encoder debug: Time base for probing setted to 1/1000000

core input debug: Buffering 70%

avcodec encoder debug: Time base set to 1/1000000

core input debug: Buffering 73%

avcodec encoder debug: found encoder Raw video

core input debug: Buffering 76%

core encoder debug: using encoder module "avcodec"

core input debug: Buffering 80%

core encoder debug: removing module "avcodec"

core input debug: Buffering 83%

core input debug: Buffering 90%

core input debug: Buffering 93%

core input debug: Buffering 96%

core input debug: Stream buffering done (1002 ms in 834 ms)

core input debug: Decoder wait done in 0 ms

avcodec generic debug: available hardware decoder output format 61 (dxva2_vld)

avcodec generic debug: available hardware decoder output format 128 (d3d11va_vld)

avcodec generic debug: available software decoder output format 12 (yuvj420p)

core generic debug: looking for hw decoder module matching "any": 1 candidates

core generic debug: no hw decoder modules matched

avcodec generic warning: plane 0 not aligned

avcodec generic warning: disabling direct rendering

stream_out_transcode stream out debug: decoder aspect is 1.761468:1

stream_out_transcode stream out debug: source pixel aspect is 0.990826:1

stream_out_transcode stream out debug: scaled pixel aspect is 0.990826:1

stream_out_transcode stream out debug: source 1920x1080, destination 1920x1080

stream_out_transcode stream out debug: source fps 30/1, destination 30/1

stream_out_transcode stream out: input interval 33333 (base 1)

stream_out_transcode stream out: output interval 33333 (base 1)

stream_out_transcode stream out debug: encoder aspect is 1920:1090

core filter debug: looking for video filter2 module matching "any": 58 candidates

swscale filter debug: 1920x1080 (1920x1090) chroma: J420 -> 1920x1080 (1920x1090) chroma: RV24 with scaling using Bicubic (good quality)

core filter debug: using video filter2 module "swscale"

core stream out debug: Filter 'Swscale' (0089a2cc) appended to chain

stream_out_transcode stream out debug: destination (after video filters) 1920x1090

core encoder debug: looking for encoder module matching "any": 20 candidates

avcodec encoder debug: CPU flags: 0x0107d3db

avcodec encoder debug: Time base for probing setted to 1/30

avcodec encoder debug: Time base set to 1/30

avcodec encoder debug: found encoder Raw video

core encoder debug: using encoder module "avcodec"

stream_out_transcode stream out warning: Reseting video sync

stream_out_transcode stream out warning: Reseting video sync

stream_out_transcode stream out warning: Reseting video sync

stream_out_transcode stream out warning: Reseting video sync

avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518755, last: 1518769)

avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518756, last: 1518769)

avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518757, last: 1518769)

avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518758, last: 1518769)

avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518759, last: 1518769)

avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518760, last: 1518769)

avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518761, last: 1518769)

avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518762, last: 1518769)

avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518763, last: 1518769)

avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518764, last: 1518769)

stream_out_transcode stream out warning: Reseting video sync

stream_out_transcode stream out warning: Reseting video sync

avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518784, last: 1518795)

live555 demux debug: tk->rtpSource->hasBeenSynchronizedUsingRTCP()

core input error: ES_OUT_RESET_PCR called

avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518785, last: 1518795)

core input debug: Buffering 0%

core input debug: Buffering 3%

core input debug: Buffering 6%

core input debug: Buffering 10%

core input debug: Buffering 13%

core input debug: Buffering 20%

core input debug: Buffering 23%

core input debug: Buffering 26%

core input debug: Buffering 30%

core input debug: Buffering 33%

core input debug: Buffering 40%

core input debug: Buffering 43%

core input debug: Buffering 46%

core input debug: Buffering 50%

core input debug: Buffering 53%

core input debug: Buffering 60%

core input debug: Buffering 63%

core input debug: Buffering 66%

core input debug: Buffering 70%

core input debug: Buffering 73%

core input debug: Buffering 80%

core input debug: Buffering 83%

core input debug: Buffering 86%

core input debug: Buffering 90%

core input debug: Buffering 93%

core input debug: Stream buffering done (1002 ms in 817 ms)

core input debug: Decoder wait done in 0 ms

stream_out_transcode stream out warning: Reseting video sync

stream_out_transcode stream out warning: Reseting video sync

stream_out_transcode stream out warning: Reseting video sync

stream_out_transcode stream out warning: Reseting video sync

avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518834, last: 1518837)

avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518835, last: 1518837)

avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518836, last: 1518837)

avcodec encoder warning: almost fed libavcodec with two frames with the same PTS (1518837)

stream_out_transcode stream out warning: Reseting video sync

stream_out_transcode stream out warning: Reseting video sync

Unable to transfer continuous FFmpeg buffer to client browser using node.js

10 décembre 2016, par chintitomasud

I have tried to process a Video file transcoding on demand by using FFmpeg to transfer the chunk(buffer) to the client browser as mp4 format but I failed to show the mp4 content on html5 video player . Without using ffmpeg all code run properly . I have replaced createReadSteam with ffmpeg . Using it I have faced some problems. FFmpeg is new to me and I ’m kind of confused with spawn method. When I post a url path it shows the following text on the command line

Spawning new process /samiul113039/1080.mp4:GET

piping ffmpeg output to client, pid 10016

HTTP connection disrupted, killing ffmpeg : 10016

Spawning new process /samiul113039/1080.mp4:GET

piping ffmpeg output to client, pid 4796

HTTP connection disrupted, killing ffmpeg : 4796

ffmpeg didn’t quit on q, sending signals ffmpeg has exited : 10016,

code null ffmpeg didn’t quit on q, sending signals ffmpeg has exited :
4796, code nul

var fs=require('fs');



var url=require("url");

var urlvalue="http://csestudents.uiu.ac.bd/samiul113039/1080.mp4";





var parseurl=url.parse(urlvalue);



var HDHomeRunIP = parseurl.hostname;

var HDHomeRunPort = parseurl.port;

var childKillTimeoutMs = 1000;



var parseArgs = require('minimist')(process.argv.slice(2));



// define startsWith for string

if (typeof String.prototype.startsWith != 'function') {

  // see below for better implementation!

  String.prototype.startsWith = function (str){

    return this.indexOf(str) == 0;

  };

}

// Called when the response object fires the 'close' handler, kills ffmpeg 

function responseCloseHandler(command) {

  if (command.exited != true) {

    console.log('HTTP connection disrupted, killing ffmpeg: ' + command.pid);

    // Send a 'q' which signals ffmpeg to quit. 

    // Then wait half a second, send a nice signal, wait another half second

    // and send SIGKILL

    command.stdin.write('q\n');

    command.stdin.destroy();

    // install timeout and wait

    setTimeout(function() {

      if (command.exited != true) {

        console.log('ffmpeg didn\'t quit on q, sending signals');

        // still connected, do safe sig kills

        command.kill();

        try { 

          command.kill('SIGQUIT');

        } catch (err) {}

        try {

          command.kill('SIGINT');

        } catch (err) {} 

        // wait some more!

        setTimeout(function() {

          if (command.exited != true) {

            console.log('ffmpeg didn\'t quit on signals, sending SIGKILL');

            // at this point, just give up and whack it

            try {

              command.kill('SIGKILL');

            } catch (err) {}

          }

        }, childKillTimeoutMs);

      }    

    }, childKillTimeoutMs);

  }

}



// Performs a proxy. Copies data from proxy_request into response

function doProxy(request,response,http,options) {

  var proxy_request = http.request(options, function (proxy_response) {

    proxy_response.on('data', function(chunk) {

      response.write(chunk, 'binary');

    });

    proxy_response.on('end', function() {

      response.end();

    });

    response.writeHead(proxy_response.statusCode, proxy_response.headers);

  });

  request.on('data', function(chunk) {

    proxy_request.write(chunk, 'binary');

  });

  // error handler

  proxy_request.on('error', function(e) {

    console.log('problem with request: ' + e.message);

    response.writeHeader(500);

    response.end();

  });



  proxy_request.end();

}



var child_process = require('child_process');

var auth = require('./auth');

// Performs the transcoding after the URL is validated

function doTranscode(request,response) {

  //res.setHeader("Accept-Ranges", "bytes");

  response.setHeader("Accept-Ranges", "bytes");

  response.setHeader("Content-Type", "video/mp4");        

  response.setHeader("Connection","close");

  response.setHeader("Cache-Control","no-cache");

  response.setHeader("Pragma","no-cache");



  // always write the header

  response.writeHeader(200);



  // if get, spawn command stream it

  if (request.method == 'GET') {

    console.log('Spawning new process ' + request.url + ":" + request.method);



var command = child_process.spawn('ffmpeg', 

                                      ['-i','http://csestudents.uiu.ac.bd/samiul113039/1080.mp4','-f','mpegts','-'],

                                      { stdio: ['pipe','pipe','ignore'] }); 



     command.exited = false;

    // handler for when ffmpeg dies unexpectedly

    command.on('exit',function(code,signal) {

      console.log('ffmpeg has exited: ' + command.pid + ", code " + code);

      // set flag saying we've quit

      command.exited = true;

      response.end();

    });

    command.on('error',function(error) {

      console.log('ffmpeg error handler - unable to kill: ' + command.pid);

      // on well, might as well give up

      command.exited = true;

      try {

        command.stdin.close(); 

      } catch (err) {}

      try {

        command.stdout.close();

      } catch (err) {}

      try {

        command.stderr.close();

      } catch (err) {}

      response.end();

    });

    // handler for when client closes the URL connection - stop ffmpeg

    response.on('end',function() { 

     responseCloseHandler(command);

    });

    // handler for when client closes the URL connection - stop ffmpeg

    response.on('close',function() { 

      responseCloseHandler(command); 

    });



    // now stream

    console.log('piping ffmpeg output to client, pid ' + command.pid);

    command.stdout.pipe(response);

    command.stdin.on('error',function(err) {

      console.log("Weird error in stdin pipe ", err);

      response.end();

    });

    command.stdout.on('error',function(err) {

      console.log("Weird error in stdout pipe ",err);

      response.end();

    });

  } 

  else {

    // not GET, so close response

    response.end();

  }

}



// Load the http module to create an http server.

var http = require('http');



// Configure our HTTP server to respond with Hello World to all requests.

var server = http.createServer(function (request, response) {

  //console.log("New connection from " + request.socket.remoteAddress + ":" + request.url);



  if (auth.validate(request,response)) {

    // first send a HEAD request to our HD Home Run with the same url to see if the address is valid.

    // This prevents an ffmpeg instance to spawn when clients request invalid things - like robots.txt/etc

    var options = {method: 'HEAD', hostname: HDHomeRunIP, port: HDHomeRunPort, path: request.url};

    var req = http.request(options, function(res) {

      // if they do a get, and it returns good status

      if (request.method == "GET" &amp;&amp;

          res.statusCode == 200 &amp;&amp;

          res.headers["content-type"] != null &amp;&amp;

          res.headers["content-type"].startsWith("video")) {

        // transcode is possible, start it now!

        doTranscode(request,response);

      } 

      else {

        // no video or error, cannot transcode, just forward the response from the HD Home run to the client

        if (request.method == "HEAD") {

          response.writeHead(res.statusCode,res.headers);

          response.end();

        }

        else {

          // do a 301 redirect and have the device response directly  



          // just proxy it, that way browser doesn't redirect to HDHomeRun IP but keeps the node.js server IP

          options = {method: request.method, hostname: HDHomeRunIP, /* port: HDHomeRunPort, */path: request.url};

          doProxy(request,response,http,options);

        }

      }

    });

    req.on('error', function(e) {

      console.log('problem with request: ' + e.message);

      response.writeHeader(500);

      response.end();

    });

    // finish the client request, rest of processing done in the async callbacks

    req.end();

  }

});



// turn on no delay for tcp

server.on('connection', function (socket) {

  socket.setNoDelay(true);

});

server.listen(7000);

stdio : [’pipe’,’pipe’,’ignore’]
Actually the code was written by someone. i have just modified the code.
[’pipe’,’pipe’,’ignore’] what does pipe,pipe.ignore mean here,

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