Recherche avancée

Médias (1)

Mot : - Tags -/artwork

Autres articles (57)

  • Websites made ​​with MediaSPIP

    2 mai 2011, par

    This page lists some websites based on MediaSPIP.

  • Creating farms of unique websites

    13 avril 2011, par

    MediaSPIP platforms can be installed as a farm, with a single "core" hosted on a dedicated server and used by multiple websites.
    This allows (among other things) : implementation costs to be shared between several different projects / individuals rapid deployment of multiple unique sites creation of groups of like-minded sites, making it possible to browse media in a more controlled and selective environment than the major "open" (...)

  • Support audio et vidéo HTML5

    10 avril 2011

    MediaSPIP utilise les balises HTML5 video et audio pour la lecture de documents multimedia en profitant des dernières innovations du W3C supportées par les navigateurs modernes.
    Pour les navigateurs plus anciens, le lecteur flash Flowplayer est utilisé.
    Le lecteur HTML5 utilisé a été spécifiquement créé pour MediaSPIP : il est complètement modifiable graphiquement pour correspondre à un thème choisi.
    Ces technologies permettent de distribuer vidéo et son à la fois sur des ordinateurs conventionnels (...)

Sur d’autres sites (8199)

  • ffmpeg : jpeg-images with different resolution -> video sequence ; using padding instead of scaling [on hold]

    3 septembre 2013, par user2742503

    I am currently struggling with the following problem using ffmpeg : I have a bunch of jpg-files with different resolution (say, one is 320x240, one is 800x600 etc) and want to create an avi-file using mjpeg as a video codec withn a output-video resolution of 800x600. The images itself should not be scaled in any way, that means : What I want to achieve is to just place the image in the center and fill the remaining space with white or black instead of scaling up the smaller images to the target resolution.

    So far I have used

    ffmpeg -f image2 -r 1 -i image_%04d.jpg -vcodec mjpeg -s 1920x1080 -qscale 2 -r 25 output2.avi

    or

    ffmpeg -f image2 -r 1 -i image_%04d.jpg -vcodec mjpeg -vf scale=1920:1080 -qscale 2 -r 25 output2.avi

    in case of scaling to HD resolution.

    Would be very thankful for any support on that !

    Thank you in advance !

  • lavc/mjpegdec : Set SAR even if no resolution is available.

    27 janvier 2016, par Carl Eugen Hoyos
    lavc/mjpegdec : Set SAR even if no resolution is available.

    Fixes ticket #4479.
    • [DH] libavcodec/mjpegdec.c

  • How to concat two/many mp4 files(Mac OS X Lion 10.7.5) with different resolution, bit rate [on hold]

    3 septembre 2013, par praveen

    I have to concat different mp4 files into single mp4 file. i am using following ffmpeg command but this command is only working if both file is same(copy, or if all video property is same(codec, resolution,bitrate....) ) other wise result is unexpected video. (I am working on Mac OS X Lion 10.7.5)

    ffmpeg commad :

    ffmpeg -i images/1/output.mp4 -c copy -bsf:v h264_mp4toannexb -f mpegts intermediate1.ts
    
ffmpeg -i images/1/Video2.mp4 -c copy -bsf:v h264_mp4toannexb -f mpegts intermediate2.ts
    
ffmpeg -i "concat:intermediate1.ts|intermediate2.ts" -c copy -bsf:a aac_adtstoasc output2.mp4

    console output :

    [mpegts @ 0x7f8c6c03d800] max_analyze_duration 5000000 reached at 5000000 microseconds
    

    
Input #0, mpegts, from 'concat:intermediate1.ts|intermediate2.ts':
    
Duration: 00:00:16.52, start: 1.400000, bitrate: 1342 kb/s
    
Program 1 
    
Metadata:
    
service_name    : Service01
    
service_provider: FFmpeg
    
Stream #0:0[0x100]: Video: h264 (Main) ([27][0][0][0] / 0x001B), yuv420p, 1024x768 [SAR   1:1 DAR 4:3], 25 fps, 25 tbr, 90k tbn, 50 tbc
    
Stream #0:1[0x101](und): Audio: aac ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 101 kb/s
    

    

    

    
Output #0, mp4, to 'output2.mp4':
    
Metadata:
    
encoder         : Lavf54.63.104
    
Stream #0:0: Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 1024x768 [SAR 1:1 DAR 4:3],      q=2-31, 25 fps, 90k tbn, 90k tbc
    
Stream #0:1(und): Audio: aac ([64][0][0][0] / 0x0040), 48000 Hz, stereo, 101 kb/s
    
 Stream mapping:
    
Stream #0:0 -> #0:0 (copy)
    
Stream #0:1 -> #0:1 (copy)
    
Press [q] to stop, [?] for help
    
 frame=  586 fps=0.0 q=-1.0 Lsize=    2449kB time=00:00:20.11 bitrate= 997.4kbits/s    
    
 video:2210kB audio:225kB subtitle:0 global headers:0kB muxing overhead 0.578335%

    Please help

Navigation