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  • MediaSPIP 0.1 Beta version

    25 avril 2011, par

    MediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
    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 (...)

  • Modifier la date de publication

    21 juin 2013, par

    Comment changer la date de publication d’un média ?
    Il faut au préalable rajouter un champ "Date de publication" dans le masque de formulaire adéquat :
    Administrer > Configuration des masques de formulaires > Sélectionner "Un média"
    Dans la rubrique "Champs à ajouter, cocher "Date de publication "
    Cliquer en bas de la page sur Enregistrer

  • HTML5 audio and video support

    13 avril 2011, par

    MediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
    The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
    For older browsers the Flowplayer flash fallback is used.
    MediaSPIP allows for media playback on major mobile platforms with the above (...)

Sur d’autres sites (11755)

  • Converting MP4 to HLS via ffmpeg producing stream with start delay

    24 mai 2018, par Eugene Alexeev

    I’m trying to convert mp4 to hls via this FFMpeg command :

    ffmpeg -i 1.mp4 -vcodec copy -q:v 5 -hls_time 5 -hls_list_size 0 -f hls 1.m3u8

    Command is working fine, without any errors whatsoever. BUT, when I’m trying to play brand-new HLS stream locally I noticed that it has a fixed start delay. I checked metadata of stream with ffprobe 1.m3u8 And that’s what I got :

    Input #0, hls,applehttp, from '1.m3u8':
     Duration: 00:00:11.17, start: 1.400000, bitrate: 0 kb/s
     Program 0
       Metadata:
         variant_bitrate : 0
       Stream #0:0: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p(tv, smpte170m/bt709/bt709), 720x1280, 30 fps, 30 tbr, 90k tbn, 180k tbc
       Metadata:
         variant_bitrate : 0

    As you can see, parameter start has value of 1.400000 and I believe that’s the reason of this annoying start delay. My question is - how can I get rid of that ?

    I tried to set start time with -ss flag but it doesn’t affect an output at all. Also input is perfectly fine, I tried to convert it with the same command but to .mp4 and I got correct results. Am I missing something here ? I would be very appreciated for any help. Thanks.

  • FFmpeg creating multicast with multiple streams from one source (live source)

    1er mai 2018, par Netheme

    Hi :) I’m facing problems when creating multicast with multiple streams from one source (live source). The issue is that the encoding is slower than realtime. That is big issue for me as I’m processing live feed. The exact command and it’s output you can find here :

    Command

    ffmpeg -y -hwaccel cuvid -c:v h264_cuvid -vsync 0 -deint 2 -drop_second_field 1 -surfaces 10 -i 'udp://@239.10.150.2:5004?fifo_size=100000000&bitrate=12000000'  -map i:0xc77 -r:v:0 25 -filter:v:0 fps=25,scale_npp=640:360:format=same:interp_algo=lanczos -aspect:v:0 16:9 -g:v:0 80 -vcodec:v:0 h264_nvenc -b:v:0 400K -minrate:v:0 400k -maxrate:v:0 400k  -map i:0xc77 -r:v:1 25 -filter:v:1 fps=25,scale_npp=720:405:format=same:interp_algo=lanczos -aspect:v:1 16:9 -g:v:1 80 -vcodec:v:1 h264_nvenc -b:v:1 1000K -minrate:v:1 1000k -maxrate:v:1 1000k  -map i:0xc77 -r:v:2 25 -filter:v:2 fps=25,scale_npp=1280:720:format=same:interp_algo=lanczos -aspect:v:2 16:9 -g:v:2 80 -vcodec:v:2 h264_nvenc -b:v:2 2500K -minrate:v:2 2500K -maxrate:v:2 2500K  -map i:0xc77 -r:v:3 25 -filter:v:3 fps=25,scale_npp=1920:1080:format=same:interp_algo=lanczos -aspect:v:3 16:9 -g:v:3 80 -vcodec:v:3 h264_nvenc -b:v:3 4500K -minrate:v:3 4500K -maxrate:v:3 4500K  -map i:0xc7a -ab:a:0 128k -ar:a:0 48k -acodec:a:0 aac -ac:a:0 2  -map i:0xc7b -ab:a:1 128k -ar:a:1 48k -acodec:a:1 aac -ac:a:1 2  -map i:0xc7c -ab:a:2 128k -ar:a:2 48k -acodec:a:2 aac -ac:a:2 2  -map i:0xc7d -ab:a:3 128k -ar:a:3 48k -acodec:a:3 aac -ac:a:3 2  -f mpegts "udp://@239.100.0.23:3234?overrun_nonfatal_option=1&pkt_size=1316

    And the output (speed should be 1> i hope)

    Stream #0:0 -> #0:0 (h264 (h264_cuvid) -> h264 (h264_nvenc))
    
 Stream #0:0 -> #0:1 (h264 (h264_cuvid) -> h264 (h264_nvenc))
    
 Stream #0:0 -> #0:2 (h264 (h264_cuvid) -> h264 (h264_nvenc))
    
 Stream #0:0 -> #0:3 (h264 (h264_cuvid) -> h264 (h264_nvenc))
    
 Stream #0:1 -> #0:4 (mp2 (native) -> aac (native))
    
 Stream #0:2 -> #0:5 (mp2 (native) -> aac (native))
    
 Stream #0:3 -> #0:6 (mp2 (native) -> aac (native))
    
 Stream #0:4 -> #0:7 (mp2 (native) -> aac (native))
    
Press [q] to stop, [?] for help
    
Output #0, mpegts, to 'udp://@239.100.0.23:3234?overrun_nonfatal_option=1&pkt_size=1316':=  -0.0kbits/s speed=N/A    
    
 Metadata:
    
   encoder         : Lavf57.83.100
    
   Stream #0:0: Video: h264 (h264_nvenc) (Main), cuda, 640x360 [SAR 1:1 DAR 16:9], q=-1--1, 400 kb/s, 25 fps, 90k tbn, 25 tbc
    
   Metadata:
    
     encoder         : Lavc57.107.100 h264_nvenc
    
   Side data:
    
     cpb: bitrate max/min/avg: 400000/0/400000 buffer size: 800000 vbv_delay: -1
    
   Stream #0:1: Video: h264 (h264_nvenc) (Main), cuda, 720x405 [SAR 1:1 DAR 16:9], q=-1--1, 1000 kb/s, 25 fps, 90k tbn, 25 tbc
    
   Metadata:
    
     encoder         : Lavc57.107.100 h264_nvenc
    
   Side data:
    
     cpb: bitrate max/min/avg: 1000000/0/1000000 buffer size: 2000000 vbv_delay: -1
    
   Stream #0:2: Video: h264 (h264_nvenc) (Main), cuda, 1280x720 [SAR 1:1 DAR 16:9], q=-1--1, 2500 kb/s, 25 fps, 90k tbn, 25 tbc
    
   Metadata:
    
     encoder         : Lavc57.107.100 h264_nvenc
    
   Side data:
    
     cpb: bitrate max/min/avg: 2500000/0/2500000 buffer size: 5000000 vbv_delay: -1
    
   Stream #0:3: Video: h264 (h264_nvenc) (Main), cuda, 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 4500 kb/s, 25 fps, 90k tbn, 25 tbc
    
   Metadata:
    
     encoder         : Lavc57.107.100 h264_nvenc
    
   Side data:
    
     cpb: bitrate max/min/avg: 4500000/0/4500000 buffer size: 9000000 vbv_delay: -1
    
   Stream #0:4(cze): Audio: aac (LC), 48000 Hz, stereo, fltp, 128 kb/s
    
   Metadata:
    
     encoder         : Lavc57.107.100 aac
    
   Stream #0:5(eng): Audio: aac (LC), 48000 Hz, stereo, fltp, 128 kb/s
    
   Metadata:
    
     encoder         : Lavc57.107.100 aac
    
   Stream #0:6(hun): Audio: aac (LC), 48000 Hz, stereo, fltp, 128 kb/s
    
   Metadata:
    
     encoder         : Lavc57.107.100 aac
    
   Stream #0:7(ron): Audio: aac (LC), 48000 Hz, stereo, fltp, 128 kb/s
    
   Metadata:
    
     encoder         : Lavc57.107.100 aac
    
frame= 2868 fps= 19 q=18.0 Lq=14.0 q=15.0 q=16.0 size=  134155kB time=00:01:55.88 bitrate=9484.0kbits/s speed=0.768x

    Does anyone have experiences with something like this ?

  • Method to generate a .ts file with PMT update (PCR pid) using ffmpeg or other tools

    6 juin 2018, par C.B. Akshay Kumar

    is there a way to generate a ts file with PMT update of PCR PID using FFmpeg or any other tools ? I tried to combine two streams of the same file with their ’streamids’ (using FFmpeg’s concat filter) changed but to no avail. Is there any way to generate a stream according to my requirements ?

    Here are the sample streams that I used :

    Input #0, mpegts, from 'trial.ts':
    
Duration: 00:02:00.12, start: 1.400000, bitrate: 2162 kb/s
    
  Program 1
    
    Metadata:
    
      service_name    : Service01
    
      service_provider: FFmpeg
    
    Stream #0:0[0x100]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002), yuv420p(tv, top first), 720x576 [SAR 64:45 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc
    
    Stream #0:1[0x101](deu): Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, fltp, 384 kb/s
    

    

    
Input #0, mpegts, from 'trial2.ts':
    
  Duration: 00:02:00.12, start: 1.400000, bitrate: 2162 kb/s
    
  Program 1
    
    Metadata:
    
      service_name    : Service01
    
      service_provider: FFmpeg
    
    Stream #0:0[0x32]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002), yuv420p(tv, top first), 720x576 [SAR 64:45 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc
    
    Stream #0:1[0x33](deu): Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, fltp, 384 kb/s

    Note that only the AV PIDs for the streams have been changed. After using concat filter, I was able to combine the two streams, but I lost the PID information of the second .tsfile. Thus, there was no change in PID information as required usually for a PMT update.

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