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  • Mise à disposition des fichiers

    14 April 2011, by

    Par défaut, lors de son initialisation, MediaSPIP ne permet pas aux visiteurs de télécharger les fichiers qu’ils soient originaux ou le résultat de leur transformation ou encodage. Il permet uniquement de les visualiser.
    Cependant, il est possible et facile d’autoriser les visiteurs à avoir accès à ces documents et ce sous différentes formes.
    Tout cela se passe dans la page de configuration du squelette. Il vous faut aller dans l’espace d’administration du canal, et choisir dans la navigation (...)

  • Publier sur MédiaSpip

    13 June 2013

    Puis-je poster des contenus à partir d’une tablette Ipad ?
    Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir

  • Récupération d’informations sur le site maître à l’installation d’une instance

    26 November 2010, by

    Utilité
    Sur le site principal, une instance de mutualisation est définie par plusieurs choses : Les données dans la table spip_mutus; Son logo; Son auteur principal (id_admin dans la table spip_mutus correspondant à un id_auteur de la table spip_auteurs)qui sera le seul à pouvoir créer définitivement l’instance de mutualisation;
    Il peut donc être tout à fait judicieux de vouloir récupérer certaines de ces informations afin de compléter l’installation d’une instance pour, par exemple : récupérer le (...)

On other websites (5340)

  • Android video unplayable at iOS

    21 February 2017, by Atif Imran

    I’ve found that videos with codec H.264, MPEG-4 HE AAC V2 have no problem with my code here. But when I use a video of codec H.264, AAC (Sent from Android device) the videos are again black. Now my question is how do I convert a video to iOS playable codec.

  • Demultiplex UDP live stream to multiple single live stream outputs using FFMPEG & FFSERVE

    17 February 2017, by tiras muturi

    i have a problem with ffmpeg. i have an input live stream that has 8 inputs and i want to use ffmpeg to convert it from udp live steram to tcp livestream and then extract each of the 8 input stream differently.

    i have been reading about the ffmpeg documentation at they havent provided a clear way of solving my problem.

    am running

    ffmpeg version 3.2.4-1~16.04.york0 Copyright (c) 2000-2017 the FFmpeg developers built with gcc 5.4.1 (Ubuntu 5.4.1-5ubuntu2~16.04.york1) 20170210 configuration: --prefix=/usr --extra-version='1~16.04.york0' --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libebur128 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared libavutil 55. 34.101 / 55. 34.101 libavcodec 57. 64.101 / 57. 64.101 libavformat 57. 56.101 / 57. 56.101 libavdevice 57. 1.100 / 57. 1.100 libavfilter 6. 65.100 / 6. 65.100 libavresample 3. 1. 0 / 3. 1. 0 libswscale 4. 2.100 / 4. 2.100 libswresample 2. 3.100 / 2. 3.100 libpostproc 54. 1.100 / 54. 1.100

    am running this command to help me split my input into multiple output that can be accessed differently.

    ffmpeg \
    
-i udp://@localhost:4000 -loglevel debug \
    
-map 0:0 http://localhost:8090/feed1.ffm \
    
-map 0:1 http://localhost:8090/feed2.ffm \
    
-map 0:2 http://localhost:8090/feed3.ffm \
    
-map 0:3 http://localhost:8090/feed4.ffm \
    
-map 0:4 http://localhost:8090/feed5.ffm \
    
-map 0:5 http://localhost:8090/feed6.ffm \
    
-map 0:6 http://localhost:8090/feed7.ffm \
    
-map 0:7 http://localhost:8090/feed8.ffm

    this is my full output

    ubuntu@ip-172-31-40-57:~$ ffmpeg -i udp://@localhost:4000  -map 0:0  http://localhost:8090/feed1.ffm  -map 0:1 http://localhost:8090/feed2.ffm  -map 0:2 http://localhost:8090/feed3.ffm  -map 0:3 http://localhost:8090/feed4.ffm  -map 0:4 http://localhost:8090/feed5.ffm  -map 0:5 http://localhost:8090/feed6.ffm  -map 0:6 http://localhost:8090/feed7.ffm  -map 0:7 http://localhost:8090/feed8.ffm
    

    
ffmpeg version 3.2.4-1~16.04.york0 Copyright (c) 2000-2017 the FFmpeg developers built with gcc 5.4.1 (Ubuntu 5.4.1-5ubuntu2~16.04.york1) 20170210 configuration: --prefix=/usr --extra-version='1~16.04.york0' --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libebur128 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared libavutil      55. 34.101 / 55. 34.101 libavcodec     57. 64.101 / 57. 64.101 libavformat    57. 56.101 / 57. 56.101 libavdevice    57.  1.100 / 57.  1.100 libavfilter     6. 65.100 /  6. 65.100 libavresample   3.  1.  0 /  3.  1.  0 libswscale      4.  2.100 /  4.  2.100 libswresample   2.  3.100 /  2.  3.100 libpostproc    54.  1.100 / 54.  1.100
    

    

    
Input #0, mpegts, from 'udp://@localhost:4000':
    
 Duration: N/A, start: 14580.980000, bitrate: 768 kb/s
    
 Program 1
    
Metadata:
    
  service_name    : STREAM1
    
  service_provider: RAL
    
Stream #0:0[0x101]: Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, s16p, 96 kb/s
    
Program 2
    
Metadata:
    
  service_name    : STREAM2
    
  service_provider: RAL
    
Stream #0:1[0x111]: Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, s16p, 96 kb/s
    
Program 3
    
Metadata:
    
  service_name    : STREAM3
    
  service_provider: RAL
    
Stream #0:2[0x121]: Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, s16p, 96 kb/s
    
  Program 4
    
  Metadata:
    
  service_name    : STREAM4
    
  service_provider: RAL
    
Stream #0:3[0x131]: Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, s16p, 96 kb/s
    
Program 5
    
Metadata:
    
  service_name    : STREAM5
    
  service_provider: RAL
    
Stream #0:4[0x141]: Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, s16p, 96 kb/s
    
Program 6
    
Metadata:
    
  service_name    : STREAM6
    
  service_provider: RAL
    
Stream #0:5[0x151]: Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, s16p, 96 kb/s
    
Program 7
    
Metadata:
    
  service_name    : STREAM7
    
  service_provider: RAL
    
Stream #0:6[0x161]: Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, s16p, 96 kb/s
    
Program 8
    
Metadata:
    
  service_name    : STREAM8
    
  service_provider: RAL
    
Stream #0:7[0x171]: Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, s16p, 96 kb/s
    
Output #0, ffm, to 'http://localhost:8090/feed1.ffm':
    
Metadata:
    
creation_time   : now
    
encoder         : Lavf57.56.101
    
Stream #0:0: Audio: mp2, 44100 Hz, stereo, s16, 64 kb/s
    
Metadata:
    
  encoder         : Lavc57.64.101 mp2
    
Output #1, ffm, to 'http://localhost:8090/feed2.ffm':
    
Metadata:
    
creation_time   : now
    
encoder         : Lavf57.56.101
    
Stream #1:0: Audio: mp2, 44100 Hz, stereo, s16, 64 kb/s
    
Metadata:
    
  encoder         : Lavc57.64.101 mp2
    
Output #2, ffm, to 'http://localhost:8090/feed3.ffm':
    
Metadata:
    
creation_time   : now
    
encoder         : Lavf57.56.101
    
Stream #2:0: Audio: mp2, 44100 Hz, stereo, s16, 64 kb/s
    
Metadata:
    
  encoder         : Lavc57.64.101 mp2
    
Output #3, ffm, to 'http://localhost:8090/feed4.ffm':
    
Metadata:
    
creation_time   : now
    
encoder         : Lavf57.56.101
    
Stream #3:0: Audio: mp2, 44100 Hz, stereo, s16, 64 kb/s
    
Metadata:
    
  encoder         : Lavc57.64.101 mp2
    
Output #4, ffm, to 'http://localhost:8090/feed5.ffm':
    
Metadata:
    
creation_time   : now
    
encoder         : Lavf57.56.101
    
Stream #4:0: Audio: mp2, 44100 Hz, stereo, s16, 64 kb/s
    
Metadata:
    
  encoder         : Lavc57.64.101 mp2
    
Output #5, ffm, to 'http://localhost:8090/feed6.ffm':
    
Metadata:
    
creation_time   : now
    
encoder         : Lavf57.56.101
    
Stream #5:0: Audio: mp2, 44100 Hz, stereo, s16, 64 kb/s
    
Metadata:
    
  encoder         : Lavc57.64.101 mp2
    
Output #6, ffm, to 'http://localhost:8090/feed7.ffm':
    
Metadata:
    
creation_time   : now
    
encoder         : Lavf57.56.101
    
Stream #6:0: Audio: mp2, 44100 Hz, stereo, s16, 64 kb/s
    
Metadata:
    
  encoder         : Lavc57.64.101 mp2
    
Output #7, ffm, to 'http://localhost:8090/feed8.ffm':
    
Metadata:
    
creation_time   : now
    
encoder         : Lavf57.56.101
    
Stream #7:0: Audio: mp2, 44100 Hz, stereo, s16, 64 kb/s
    
Metadata:
    
  encoder         : Lavc57.64.101 mp2
    
Stream mapping:
    
Stream #0:0 -> #0:0 (mp2 (native) -> mp2 (native))
    
Stream #0:0 -> #1:0 (mp2 (native) -> mp2 (native))
    
Stream #0:0 -> #2:0 (mp2 (native) -> mp2 (native))
    
Stream #0:0 -> #3:0 (mp2 (native) -> mp2 (native))
    
Stream #0:0 -> #4:0 (mp2 (native) -> mp2 (native))
    
Stream #0:0 -> #5:0 (mp2 (native) -> mp2 (native))
    
Stream #0:0 -> #6:0 (mp2 (native) -> mp2 (native))
    
Stream #0:0 -> #7:0 (mp2 (native) -> mp2 (native))
    
Press [q] to stop, [?] for help
    
size=      72kB time=00:00:07.66 bitrate=  76.9kbits/s speed=2.68x
    
video:0kB audio:480kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
    
Exiting normally, received signal 2.

    these are my live feeds.

    <feed>
    

    

    
File /tmp/feed2.ffm
    
FileMaxSize 64M
    

    
ACL allow 127.0.0.1
    

    
</feed>
    

    
<feed>
    

    

    
  File /tmp/feed3.ffm
    
  FileMaxSize 64M
    

    
  ACL allow 127.0.0.1
    

    
</feed>
    

    

    
<feed>
    

    

    
  File /tmp/feed4.ffm
    
  FileMaxSize 64M
    

    
  ACL allow 127.0.0.1
    

    
</feed>

    these are my stream

    MP3 audio

    <stream>
    
Feed feed1.ffm
    
Format mp2
    
#AudioCodec mp3
    
AudioBitRate 64
    
AudioChannels 2
    
AudioSampleRate 44100
    
NoVideo
    
</stream>
    

    
<stream>
    
Feed feed2.ffm
    
Format mp2
    
#AudioCodec mp3
    
AudioBitRate 64
    
AudioChannels 2
    
AudioSampleRate 44100
    
NoVideo
    
</stream>
    

    
<stream>
    
Feed feed3.ffm
    
Format mp2
    
#AudioCodec mp3
    
AudioBitRate 64
    
AudioChannels 2
    
AudioSampleRate 44100
    
NoVideo
    
</stream>

  • Concat a video with itself, but in reverse, using ffmpeg

    15 February 2017, by Vitam

    I was able to reverse with:

    ffmpeg -i input.mp4 -vf reverse output_reversed.mp4

    And I can concat with:

    ffmpeg -i input.mp4 -i input.mp4 -filter_complex "[0:0] [0:1] [1:0] [1:1] concat=n=2:v=1:a=1 [v] [a]" -map "[v]" -map "[a]" output.mp4

    But can I concat with a reverse version of the video, with a single command?

    What I am trying to achieve is a ping pong effect, where the video plays once, then plays backwards right after.

    Thanks!

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