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Médias (1)
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Video d’abeille en portrait
14 mai 2011, par
Mis à jour : Février 2012
Langue : français
Type : Video
Autres articles (41)
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Les autorisations surchargées par les plugins
27 avril 2010, parMediaspip core
autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs -
Librairies et logiciels spécifiques aux médias
10 décembre 2010, parPour un fonctionnement correct et optimal, plusieurs choses sont à prendre en considération.
Il est important, après avoir installé apache2, mysql et php5, d’installer d’autres logiciels nécessaires dont les installations sont décrites dans les liens afférants. Un ensemble de librairies multimedias (x264, libtheora, libvpx) utilisées pour l’encodage et le décodage des vidéos et sons afin de supporter le plus grand nombre de fichiers possibles. Cf. : ce tutoriel ; FFMpeg avec le maximum de décodeurs et (...) -
Encoding and processing into web-friendly formats
13 avril 2011, parMediaSPIP automatically converts uploaded files to internet-compatible formats.
Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
All uploaded files are stored online in their original format, so you can (...)
Sur d’autres sites (8057)
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convert .mts to flv using ffmpeg and file size will 300 mb and more [closed]
20 juin 2013, par user1966466i have problem , when i have uploaded video and convert to flv for all formate .
my code is not working when i have used .mts formate and size 300 MB and more
if(move_uploaded_file($tmp, $path.$video_name_extension)){
exec("/usr/local/bin/ffmpeg -i courses/$video_name_extension -ar 44100 -ab 128k -r 25 -vcodec flv -crf 15 -b 700000 courses/$video_name");
exec("/usr/local/bin/ffmpeg -itsoffset -4 -i courses/$video_name_extension -vcodec mjpeg -vframes 1 -an -f rawvideo -s 320x240 courses/$video_image");
$cmd = "/usr/local/bin/ffmpeg -i courses/$video_name 2>&1";
if (preg_match('/Duration: ((\d+):(\d+):(\d+))/s', `$cmd`, $time)) {
$total = ($time[2] * 3600) + ($time[3] * 60) + $time[4];
}
exec($cmd);
$time = convertToHHMMSS($total);
//echo "updated 2";
// exit;
mysql_query("INSERT INTO tbl_teacher_video (user_id,title,video,video_image,duration,arts_name,video_type,added_on) VALUES ('".$_SESSION['id']."','$txt','$video_name','$video_image','$time','".$_POST['courseradio']."','2','".date('Y-m-d')."')");
unlink('courses/'.$video_name_extension); -
Revision c24d922396 : Add averaging-SAD functions for 8-point comp-inter motion search. Makes first 5
25 juin 2013, par Ronald S. BultjeChanged Paths :
Modify /vp9/common/vp9_rtcd_defs.sh
Modify /vp9/encoder/vp9_mcomp.c
Modify /vp9/encoder/vp9_onyx_if.c
Modify /vp9/encoder/vp9_sad_c.c
Modify /vp9/encoder/vp9_variance.h
Modify /vp9/encoder/x86/vp9_sad_sse2.asm
Add averaging-SAD functions for 8-point comp-inter motion search.Makes first 50 frames of bus @ 1500kbps encode from 3min22.7 to 3min18.2,
i.e. 2.3% faster. In addition, use the sub_pixel_avg functions to calc
the variance of the averaging predictor. This is slightly suboptimal
because the function is subpixel-position-aware, but it will (at least
for the SSE2 version) not actually use a bilinear filter for a full-pixel
position, thus leading to approximately the same performance compared to
if we implemented an actual average-aware full-pixel variance function.
That gains another 0.3 seconds (i.e. encode time goes to 3min17.4), thus
leading to a total gain of 2.7%.Change-Id : I3f059d2b04243921868cfed2568d4fa65d7b5acd
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Revision 4ce81d666e : Comprehensive support for symmetric DST Creates new hybrid transforms combining
10 septembre 2015, par Debargha MukherjeeChanged Paths :
Modify /vp10/common/blockd.h
Modify /vp10/common/entropymode.c
Modify /vp10/common/enums.h
Modify /vp10/common/idct.c
Modify /vp10/common/scan.c
Modify /vp10/encoder/dct.c
Modify /vp10/encoder/encodemb.c
Comprehensive support for symmetric DSTCreates new hybrid transforms combining symmetric DST with
ADST and DCT. Thus a total of 16 transforms are supported.derfl : +1.659% (up about 0.2%)
Change-Id : Idde1cecdb59527890bf05da740099c3f6a5b9764