
Recherche avancée
Médias (1)
-
1 000 000 (wav version)
26 septembre 2011, par
Mis à jour : Avril 2013
Langue : English
Type : Audio
Autres articles (87)
-
Qu’est ce qu’un masque de formulaire
13 juin 2013, parUn masque de formulaire consiste en la personnalisation du formulaire de mise en ligne des médias, rubriques, actualités, éditoriaux et liens vers des sites.
Chaque formulaire de publication d’objet peut donc être personnalisé.
Pour accéder à la personnalisation des champs de formulaires, il est nécessaire d’aller dans l’administration de votre MediaSPIP puis de sélectionner "Configuration des masques de formulaires".
Sélectionnez ensuite le formulaire à modifier en cliquant sur sont type d’objet. (...) -
MediaSPIP v0.2
21 juin 2013, parMediaSPIP 0.2 is the first MediaSPIP stable release.
Its official release date is June 21, 2013 and is announced here.
The zip file provided here only contains the sources of MediaSPIP in its standalone version.
To get a working installation, you must manually install all-software dependencies on the server.
If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...) -
MediaSPIP Player : les contrôles
26 mai 2010, parLes contrôles à la souris du lecteur
En plus des actions au click sur les boutons visibles de l’interface du lecteur, il est également possible d’effectuer d’autres actions grâce à la souris : Click : en cliquant sur la vidéo ou sur le logo du son, celui ci se mettra en lecture ou en pause en fonction de son état actuel ; Molette (roulement) : en plaçant la souris sur l’espace utilisé par le média (hover), la molette de la souris n’exerce plus l’effet habituel de scroll de la page, mais diminue ou (...)
Sur d’autres sites (5852)
-
How to stitch(concat) two transport stream with two different resolution and I-frame slices format without loosing resolution and slices information
2 octobre 2019, par ARTI have been trying to test a use case with steam captured from multimedia device and that didn't work. And then I have been trying to create this specific transport stream for like two days now without success, so requesting some help.



I need to create transport stream with two different resolution and two different slicing format.



I divided the task in following steps and in last two steps I need help.



Step 1 : Download sample video with resolution : 1920x1080.

 I downloaded big buck bunny mp4 .


Step 2 : Create transport stream with following

resolution : 1920x720, H264 I frame slices per frame : 1

I used following ffmpeg commands to do that.


#Rename file to input.mp4
$ mv bbb_sunflower_1080p_30fps_normal.mp4 input.mp4
#Extract transport stream
$ ffmpeg -i input.mp4 -c copy first.ts




first.ts is having 1980x720 resolution and one H264 I slice per frame.



Step 3 : Create another transport stream with smaller resolution using following commands



#Get mp4 with lower resolution.
$ ffmpeg -i input.mp4 -s 640x480 temp.mp4
#Extract trans port stream from mp4
$ ffmpeg -i temp.mp4 -c copy low_r.ts




Step 4 : Edit(and re-encode ?) low_r.ts to have two H264 I frame slices.
I used following command to achieve it.



$ x264 --slices 4 low_r.ts -o second.ts




However when I play this second.ts on vlc using following command it doesn't play



$ vlc ./second.ts 




And using Elacard StreamEye software when I analyze the transport stream I see that it has 4
H264 I slices
in only two times other than that lot ofH264 p slices
andH264 B slices
. 
Need help here to figure out why second.ts doesn't play and why slicing is not correct.


Step 5 : Combine both the transport stream without loosing resolution and slicing information.
Don't know command for this. Need help here.
I tried ffmpeg but that combines two stream with different resolution and makes one file with one resolution.



Any suggestions/pointers would help me proceed. Let me also know if any of the above steps are not fine too.


-
avcodec/vc1 : Check for excessive resolution
8 août 2019, par Michael Niedermayeravcodec/vc1 : Check for excessive resolution
Fixes : overflow in aspect ratio calculation
Fixes : signed integer overflow : 393215 * 14594 cannot be represented in type 'int'
Fixes : 15728/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WMV3IMAGE_fuzzer-5661588893204480Found-by : continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by : Michael Niedermayer <michael@niedermayer.cc> -
avcodec/vqavideo : Limit resolution
22 août 2019, par Michael Niedermayeravcodec/vqavideo : Limit resolution
Fixes : Timeout (288sec -> 1ms)
Fixes : 16353/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VQA_fuzzer-5633402606190592Found-by : continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by : Michael Niedermayer <michael@niedermayer.cc>