Recherche avancée

Médias (0)

Mot : - Tags -/utilisateurs

Aucun média correspondant à vos critères n’est disponible sur le site.

Autres articles (103)

  • Le profil des utilisateurs

    12 avril 2011, par

    Chaque utilisateur dispose d’une page de profil lui permettant de modifier ses informations personnelle. Dans le menu de haut de page par défaut, un élément de menu est automatiquement créé à l’initialisation de MediaSPIP, visible uniquement si le visiteur est identifié sur le site.
    L’utilisateur a accès à la modification de profil depuis sa page auteur, un lien dans la navigation "Modifier votre profil" est (...)

  • Configurer la prise en compte des langues

    15 novembre 2010, par

    Accéder à la configuration et ajouter des langues prises en compte
    Afin de configurer la prise en compte de nouvelles langues, il est nécessaire de se rendre dans la partie "Administrer" du site.
    De là, dans le menu de navigation, vous pouvez accéder à une partie "Gestion des langues" permettant d’activer la prise en compte de nouvelles langues.
    Chaque nouvelle langue ajoutée reste désactivable tant qu’aucun objet n’est créé dans cette langue. Dans ce cas, elle devient grisée dans la configuration et (...)

  • XMP PHP

    13 mai 2011, par

    Dixit Wikipedia, XMP signifie :
    Extensible Metadata Platform ou XMP est un format de métadonnées basé sur XML utilisé dans les applications PDF, de photographie et de graphisme. Il a été lancé par Adobe Systems en avril 2001 en étant intégré à la version 5.0 d’Adobe Acrobat.
    Étant basé sur XML, il gère un ensemble de tags dynamiques pour l’utilisation dans le cadre du Web sémantique.
    XMP permet d’enregistrer sous forme d’un document XML des informations relatives à un fichier : titre, auteur, historique (...)

Sur d’autres sites (15785)

  • Problems when make ffmpeg with ios5.1

    20 octobre 2012, par why

    I am using https://github.com/lajos/iFrameExtractor and there is ffmpeg directory.

    I can configure and make successful, but there some errors when run ./build_universal

     libavformat/metadata_compat.c: In function ‘ff_metadata_mux_compat’:
    
libavformat/metadata_compat.c:129: warning: the address of ‘number’ will always evaluate as ‘true’
    
libavformat/metadata_compat.c:130: warning: the address of ‘number’ will always evaluate as ‘true’
    
/applications/xcode.app/contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc -DHAVE_AV_CONFIG_H -I. -I"/Users/why/work/iFrameExtractor/ffmpeg" -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -DPIC -std=c99 -fomit-frame-pointer -fPIC -g -Wdeclaration-after-statement -Wall -Wno-switch -Wdisabled-optimization -Wpointer-arith -Wredundant-decls -Wno-pointer-sign -Wcast-qual -Wwrite-strings -Wundef -O3 -fno-math-errno -fno-tree-vectorize       -MMD -MF libavformat/options.d -MT libavformat/options.o -c -o libavformat/options.o libavformat/options.c
    
/applications/xcode.app/contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc -DHAVE_AV_CONFIG_H -I. -I"/Users/why/work/iFrameExtractor/ffmpeg" -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -DPIC -std=c99 -fomit-frame-pointer -fPIC -g -Wdeclaration-after-statement -Wall -Wno-switch -Wdisabled-optimization -Wpointer-arith -Wredundant-decls -Wno-pointer-sign -Wcast-qual -Wwrite-strings -Wundef -O3 -fno-math-errno -fno-tree-vectorize       -MMD -MF libavformat/os_support.d -MT libavformat/os_support.o -c -o libavformat/os_support.o libavformat/os_support.c
    
libavformat/os_support.c: In function ‘resolve_host’:
    
libavformat/os_support.c:68: warning: implicit declaration of function ‘inet_aton’
    
/applications/xcode.app/contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc -DHAVE_AV_CONFIG_H -I. -I"/Users/why/work/iFrameExtractor/ffmpeg" -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -DPIC -std=c99 -fomit-frame-pointer -fPIC -g -Wdeclaration-after-statement -Wall -Wno-switch -Wdisabled-optimization -Wpointer-arith -Wredundant-decls -Wno-pointer-sign -Wcast-qual -Wwrite-strings -Wundef -O3 -fno-math-errno -fno-tree-vectorize       -MMD -MF libavformat/sdp.d -MT libavformat/sdp.o -c -o libavformat/sdp.o libavformat/sdp.c
    
/applications/xcode.app/contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc -DHAVE_AV_CONFIG_H -I. -I"/Users/why/work/iFrameExtractor/ffmpeg" -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -DPIC -std=c99 -fomit-frame-pointer -fPIC -g -Wdeclaration-after-statement -Wall -Wno-switch -Wdisabled-optimization -Wpointer-arith -Wredundant-decls -Wno-pointer-sign -Wcast-qual -Wwrite-strings -Wundef -O3 -fno-math-errno -fno-tree-vectorize       -MMD -MF libavformat/seek.d -MT libavformat/seek.o -c -o libavformat/seek.o libavformat/seek.c
    
/applications/xcode.app/contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc -DHAVE_AV_CONFIG_H -I. -I"/Users/why/work/iFrameExtractor/ffmpeg" -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -DPIC -std=c99 -fomit-frame-pointer -fPIC -g -Wdeclaration-after-statement -Wall -Wno-switch -Wdisabled-optimization -Wpointer-arith -Wredundant-decls -Wno-pointer-sign -Wcast-qual -Wwrite-strings -Wundef -O3 -fno-math-errno -fno-tree-vectorize       -MMD -MF libavformat/utils.d -MT libavformat/utils.o -c -o libavformat/utils.o libavformat/utils.c
    
libavformat/utils.c: In function ‘parse_date’:
    
libavformat/utils.c:3100: warning: cast discards qualifiers from pointer target type
    
/applications/xcode.app/contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc -DHAVE_AV_CONFIG_H -I. -I"/Users/why/work/iFrameExtractor/ffmpeg" -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -DPIC -std=c99 -fomit-frame-pointer -fPIC -g -Wdeclaration-after-statement -Wall -Wno-switch -Wdisabled-optimization -Wpointer-arith -Wredundant-decls -Wno-pointer-sign -Wcast-qual -Wwrite-strings -Wundef -O3 -fno-math-errno -fno-tree-vectorize       -MMD -MF libavformat/avio.d -MT libavformat/avio.o -c -o libavformat/avio.o libavformat/avio.c
    
/applications/xcode.app/contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc -DHAVE_AV_CONFIG_H -I. -I"/Users/why/work/iFrameExtractor/ffmpeg" -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -DPIC -std=c99 -fomit-frame-pointer -fPIC -g -Wdeclaration-after-statement -Wall -Wno-switch -Wdisabled-optimization -Wpointer-arith -Wredundant-decls -Wno-pointer-sign -Wcast-qual -Wwrite-strings -Wundef -O3 -fno-math-errno -fno-tree-vectorize       -MMD -MF libavformat/aviobuf.d -MT libavformat/aviobuf.o -c -o libavformat/aviobuf.o libavformat/aviobuf.c
    
libavformat/aviobuf.c: In function ‘url_fdopen’:
    
libavformat/aviobuf.c:560: warning: passing argument 6 of ‘init_put_byte’ from incompatible pointer type
    
libavformat/aviobuf.c:560: warning: passing argument 7 of ‘init_put_byte’ from incompatible pointer type
    
libavformat/aviobuf.c:560: warning: passing argument 8 of ‘init_put_byte’ from incompatible pointer type
    
/var/folders/59/7srh1dk537s3hr4b2_4k1nxr0000gn/T//cc7qLhBK.s:2662:no such instruction: `eor %ecx, %eax,%eax,ror'
    
/var/folders/59/7srh1dk537s3hr4b2_4k1nxr0000gn/T//cc7qLhBK.s:2663:no such instruction: `bic %ecx, %ecx,'
    
/var/folders/59/7srh1dk537s3hr4b2_4k1nxr0000gn/T//cc7qLhBK.s:2664:suffix or operands invalid for `mov'
    
/var/folders/59/7srh1dk537s3hr4b2_4k1nxr0000gn/T//cc7qLhBK.s:2665:no such instruction: `eor %eax, %eax,%ecx,lsr'
    
    make: *** [libavformat/aviobuf.o] Error 1
    
    mv: rename libavcodec/libavcodec.a to armv7/libavcodec.a: No such file or directory
    
    mv: rename libavformat/libavformat.a to armv7/libavformat.a: No such file or directory
    
    mv: rename libavutil/libavutil.a to armv7/libavutil.a: No such file or directory
    
    mv: rename libswscale/libswscale.a to armv7/libswscale.a: No such file or directory
    
    rm: No match.
    
    rm: No match.
    
    lipo: can't open input file: armv7/libavcodec.a (No such file or directory)
    
    lipo: specifed architecture type (armv7) for file (armv7/libavdevice.a) does not match its cputype (16777223) and cpusubtype (3) (should be cputype (12) and cpusubtype (9))
    
    lipo: can't open input file: armv7/libavformat.a (No such file or directory)
    
    lipo: can't open input file: armv7/libavutil.a (No such file or directory)
    
    lipo: can't open input file: armv7/libswscale.a (No such file or directory)
    
    cp: No match.

  • 'C' program to pipeout audio file to FFMPEG and generate Video file

    9 mai 2017, par soflow

    I am attempting to write a short ’C’ program which reads in an Audio file using FFMPEG, processes that file using a ’C’ program, and then outputs a file via FFMEPG, which combines the new, modified audio together with a Video representation using the FFMPEG showwaves filter.

    At present the program attempts to do the following :-

    i) Read in an audio file, using pipein thorugh FFMPEG
    ii) Process the audio file using a portion of the ’C’ program
    iii) Pipeout the modified audio to FFMPEG, and generate a file using the ’showwaves’ filter in FFMEPG to create an MP4 file with audio and video.

    The following code run form the ommand line in FFMPEG generates the Audio/Video MP4 I want to create :-

    ffmpeg -y -f s16le -ar 44100 -ac 1 -i 12345678.wav  -i 12345678.wav  -filter_complex  "[0:a]showwaves=s=1280x720:mode=line:rate=25,format=yuv420p[v]" -map "[v]" -map 1:a:0 -codec:v libx264 -crf 21 -bf 2 -flags +cgop -pix_fmt yuv420p -codec:a aac -strict -2 -b:a 384k -r:a 48000 -movflags faststart  12345678.mp4

    "

    This code generates a processed audio file, and outputs it to a .wav file as required :-

    #include 
    
#include 
    
#include 
    

    
void main()
    
{
    
// Launch two instances of FFmpeg, one to read the original WAV
    
// file and another to write the modified WAV file. In each case,
    
// data passes between this program and FFmpeg through a pipe.
    
FILE *pipein;
    
FILE *pipeout;
    
pipein  = popen("ffmpeg -i 12345678.wav -f s16le -ac 1 -", "r");
    
pipeout = popen("ffmpeg -y -f s16le -ar 44100 -ac 1 -i - out.wav", "w");
    

    
// Read, modify and write one sample at a time
    
int16_t sample;
    
int count, n=0;
    
while(1)
    
{
    
    count = fread(&sample, 2, 1, pipein); // read one 2-byte sample
    
    if (count != 1) break;
    
    ++n;
    
    sample = sample * sin(n * 5.0 * 2*M_PI / 44100.0);
    
    fwrite(&sample, 2, 1, pipeout);
    
}
    

    
// Close input and output pipes
    
pclose(pipein);    
    
pclose(pipeout);
    
}

    (This code borrowed from ted Burke’s excellent post here)

    I have made an attempt as shown below, but this is not working :-

    #include 
    
#include 
    
#include 
    

    
void main()
    
{
    
// Launch two instances of FFmpeg, one to read the original WAV
    
// file and another to write the modified WAV file. In each case,
    
// data passes between this program and FFmpeg through a pipe.
    
FILE *pipein;
    
FILE *pipeout;
    
pipein  = popen("ffmpeg -i 12345678.wav -f s16le -ac 1 -", "r");
    
pipeout = popen("ffmpeg -y -f s16le -ar 44100 -ac 1 -i 12345678.wav  -i 
    
12345678.wav  -filter_complex  "
    
[0:a]showwaves=s=1280x720:mode=line:rate=25,format=yuv420p[v]" -map "[v]" 
    
-map 1:a:0 -codec:v libx264 -crf 21 -bf 2 -flags +cgop -pix_fmt yuv420p -
    
codec:a aac -strict -2 -b:a 384k -r:a 48000 -movflags faststart  
    
12345678.mp4
    
", "w");
    

    

    
// Read, modify and write one sample at a time
    
int16_t sample;
    
int count, n=0;
    
while(1)
    
{
    
    count = fread(&sample, 2, 1, pipein); // read one 2-byte sample
    
    if (count != 1) break;
    
    ++n;
    
    sample = sample * sin(n * 5.0 * 2*M_PI / 44100.0);
    
    fwrite(&sample, 2, 1, pipeout);
    
}
    

    
// Close input and output pipes
    
pclose(pipein);    
    
pclose(pipeout);
    
}    

    Ideally someone can suggest an improved version of the pipeout command above - alternately another process to achieve this would be interesting

    * EDIT *

    Thanks to @Mulvya, the revised pipeout line is now :-

    pipeout = popen("ffmpeg -y -f s16le -ar 44100 -ac 1 -i -  -filter_complex  "[0:a]showwaves=s=1280x720:mode=line:rate=25,format=yuv420p[v]" -map "[v]" -map 1:a:0 -codec:v libx264 -crf 21 -bf 2 -flags +cgop -pix_fmt yuv420p -codec:a aac -strict -2 -b:a 384k -r:a 48000 -movflags faststart  12345678.mp4

    ", "w") ;

    On compiling with gcc I get the following error messages :-

    avtovid2.c: In function \u2018main\u2019:
    

    
wavtovid2.c:13:83: error: expected \u2018]\u2019 before \u2018:\u2019 
    
token
    
 pipeout = popen("ffmpeg -y -f s16le -ar 44100 -ac 1 -i -  -
    
filter_complex  "
    
[0:a]showwaves=s=1280x720:mode=line:rate=25,format=yuv420p[v]" -map "[v]" 
    
-map 1:a:0 -codec:v libx264 -crf 21 -bf 2 -flags +cgop -pix_fmt yuv420p -
    
codec:a aac -strict -2 -b:a 384k -r:a 48000 -movflags faststart  
    
12345678.mp4
    

    
^
    
wavtovid2.c:13:86: error: expected \u2018)\u2019 before 
    
\u2018showwaves\u2019
    
 pipeout = popen("ffmpeg -y -f s16le -ar 44100 -ac 1 -i -  -
    
filter_complex  "
    
[0:a]showwaves=s=1280x720:mode=line:rate=25,format=yuv420p[v]" -map "[v]" 
    
-map 1:a:0 -codec:v libx264 -crf 21 -bf 2 -flags +cgop -pix_fmt yuv420p -
    
codec:a aac -strict -2 -b:a 384k -r:a 48000 -movflags faststart  
    
12345678.mp4
    

    
^
    
wavtovid2.c:13:98: error: invalid suffix "x720" on integer constant
    
 pipeout = popen("ffmpeg -y -f s16le -ar 44100 -ac 1 -i -  -
    
filter_complex  "
    
[0:a]showwaves=s=1280x720:mode=line:rate=25,format=yuv420p[v]" -map "[v]" 
    
-map 1:a:0 -codec:v libx264 -crf 21 -bf 2 -flags +cgop -pix_fmt yuv420p -
    
codec:a aac -strict -2 -b:a 384k -r:a 48000 -movflags faststart  
    
12345678.mp4
    

    
^
    
wavtovid2.c:13:153: warning: missing terminating " character
    
 pipeout = popen("ffmpeg -y -f s16le -ar 44100 -ac 1 -i -  -
    
filter_complex  "
    
[0:a]showwaves=s=1280x720:mode=line:rate=25,format=yuv420p[v]" -map "[v]" 
    
-map 1:a:0 -codec:v libx264 -crf 21 -bf 2 -flags +cgop -pix_fmt yuv420p -
    
codec:a aac -strict -2 -b:a 384k -r:a 48000 -movflags faststart  
    
12345678.mp4
    

    
^
    
wavtovid2.c:13:86: error: missing terminating " character
    
 pipeout = popen("ffmpeg -y -f s16le -ar 44100 -ac 1 -i -  -
    
filter_complex  "
    
[0:a]showwaves=s=1280x720:mode=line:rate=25,format=yuv420p[v]" -map "[v]" 
    
-map 1:a:0 -codec:v libx264 -crf 21 -bf 2 -flags +cgop -pix_fmt yuv420p -
    
codec:a aac -strict -2 -b:a 384k -r:a 48000 -movflags faststart  
    
12345678.mp4
    

    
^
    
wavtovid2.c:14:6: warning: missing terminating " character
    
 ", "w");
    
  ^
    
wavtovid2.c:14:1: error: missing terminating " character
    
 ", "w");
    
 ^
    
wavtovid2.c:13:21: warning: passing argument 1 of \u2018popen\u2019 makes 
    
pointer from integer without a cast
    
 pipeout = popen("ffmpeg -y -f s16le -ar 44100 -ac 1 -i -  -
    
filter_complex  "
    
[0:a]showwaves=s=1280x720:mode=line:rate=25,format=yuv420p[v]" -map "[v]" 
    
-map 1:a:0 -codec:v libx264 -crf 21 -bf 2 -flags +cgop -pix_fmt yuv420p -
    
codec:a aac -strict -2 -b:a 384k -r:a 48000 -movflags faststart  
    
12345678.mp4
    
                 ^
    
In file included from wavtovid2.c:1:0:
    
/usr/include/stdio.h:872:14: note: expected \u2018const char *\u2019 but 
    
argument is of type \u2018char\u2019
    
 extern FILE *popen (const char *__command, const char *__modes) __wur;
    
          ^
    
wavtovid2.c:13:15: error: too few arguments to function \u2018popen\u2019
    
 pipeout = popen("ffmpeg -y -f s16le -ar 44100 -ac 1 -i -  -
    
filter_complex  "
    
[0:a]showwaves=s=1280x720:mode=line:rate=25,format=yuv420p[v]" -map "[v]" 
    
-map 1:a:0 -codec:v libx264 -crf 21 -bf 2 -flags +cgop -pix_fmt yuv420p -
    
codec:a aac -strict -2 -b:a 384k -r:a 48000 -movflags faststart  
    
12345678.mp4
    
           ^ 
    
In file included from wavtovid2.c:1:0:
    
/usr/include/stdio.h:872:14: note: declared here
    
 extern FILE *popen (const char *__command, const char *__modes) __wur;
    
          ^
    
wavtovid2.c:32:1: error: expected \u2018;\u2019 before \u2018}\u2019 
    
token
    
 }

  • Impossible to redirect video stream after conversion (mkv to mp4)

    17 décembre 2019, par elgrusko

    I’m currently realising a school project which aims a streaming video website (like Netflix) using torrent-stream (with the magnet link). I am using NodeJS for the stream part.

    My problem is : I can’t redirect the stream to the HTML 5 player while i’m trying to stream and converting (with ffmpeg) video at the same time. I think it’s because I just can’t know what’s will be the final size of the converted file.
    In browser’s console I have this message : net::ERR_CONTENT_LENGTH_MISMATCH 200 (OK)

    I tried to put this in the header : Transfer-Encoding: chunked instead of Content-Length
    I specify that the stream (before conversion) works perfectly

    This is my code :

    getTorrentFile.then(function (file) {
    
                res.setHeader('Content-Type', 'video/mp4');
    
                res.setHeader('Content-Length', file.length);
    
                const ranges = parseRange(file.length, '15' /* variable à comprendre */, { combine: true });
    
                console.log(ranges);
    
                if (ranges === -1) {
    
                    // 416 Requested Range Not Satisfiable
    
                    console.log('416')
    
                    res.statusCode = 416;
    
                    return res.end();
    
                } else if (ranges === -2 || ranges.type !== 'bytes' || ranges.length > 1) {
    
                    // 200 OK requested range malformed or multiple ranges requested, stream ent'ire video
    
                    if (req.method !== 'GET') return res.end();
    
                    console.log('200')
    
                    stream = file.createReadStream()
    
                    ffmpeg(stream)
    
                    .videoCodec('libx264')
    
                    .audioCodec('aac')
    
                    .output(res)
    
                    .output('./video/' + film + '_s' + season + '_e' + episode + '.mp4')
    
                    .outputFormat('mp4')
    
                    .outputOptions('-movflags frag_keyframe+empty_moov')
    
                    .on('error', function(err) {
    
                        console.log('An error occurred: ' + err.message);
    
                    })
    
                    .on('progress', function(progress) {
    
                        console.log('Processing: ' + progress.targetSize + 'kb done');
    
                      })
    
                    .on('end', function() {
    
                        console.log('Processing finished !');
    
                    })
    
                    .addOutputOption('-acodec')
    
                    .run()

    Sorry if i’m not really clear, ask me some questions if you need more informations :)

    Thanks for your help, bye :)

Navigation