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Autres articles (58)

  • Demande de création d’un canal

    12 mars 2010, par

    En fonction de la configuration de la plateforme, l’utilisateur peu avoir à sa disposition deux méthodes différentes de demande de création de canal. La première est au moment de son inscription, la seconde, après son inscription en remplissant un formulaire de demande.
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  • MediaSPIP v0.2

    21 juin 2013, par

    MediaSPIP 0.2 est la première version de MediaSPIP stable.
    Sa date de sortie officielle est le 21 juin 2013 et est annoncée ici.
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    Comme pour la version précédente, il est nécessaire d’installer manuellement l’ensemble des dépendances logicielles sur le serveur.
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  • MediaSPIP version 0.1 Beta

    16 avril 2011, par

    MediaSPIP 0.1 beta est la première version de MediaSPIP décrétée comme "utilisable".
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Sur d’autres sites (14049)

  • ffmpeg fails to capture video running on screen

    21 septembre 2014, par Ralf

    I’m trying to capture a slide presentation as video. I’m using the following command to capture my screen

    ffmpeg \
    
   -f x11grab -s 1024x768 -r 25 -i $DISPLAY \
    
   -f alsa -i pulse \
    
   -vcodec libx264 -preset ultrafast -vb 1000k \
    
   -acodec libmp3lame -ab 128k \
    
   test.avi

    This works (application windows on the screen are visible and sound is recorded in test.avi), but the problem is : Any video shown on the screen (e.g. a youtube video running in a browser window, but also e.g. a video played by mplayer) only appears as an empty (e.g. green) box when I play the captured video (test.avi).

    I’m using ffmpeg version 0.8.16-4:0.8.16-0ubuntu0.12.04.1 on Ubuntu 12.04.5 LTS with the nvidia-331 driver (effect is the same with older nvidia-304).

    I would really appreciate any suggestions, thanks a lot !

  • GDIGRAB of windows form in a virtual machine

    19 novembre 2018, par Mahesh Vemuri

    Hi I am trying to stream my winform app window. Whenever I connect to my system using RDP, it is streaming the window. If I close the RDP system or minimize it, ffmpeg is not able to stream the window. I have tried with many other tools. But same behaviour.

    Is there any way to record my window in virtual machine in AWS ?

  • VLC can not play RTSP stream while mpv, ffplay can play RTSP stream video

    15 novembre 2018, par Harshil Makwana

    I developed ffserver based RTSP server which streams live video, I can able to stream and display video on mpv and ffplayer. but on VLC player I can see first image only then It wont show other frames.

    Here are logs of VLC -vvv output :

    [0x7846e8] main playlist debug: art not found for rtsp://127.0.0.1:1234/test.h264
    
Received 92 new bytes of response data.
    
Received a complete PLAY response:
    
RTSP/1.0 200 OK
    
CSeq: 5
    
Date: Thu, 15 Nov 2018 04:13:15 GMT
    
Session: 522d937eb678c50a
    

    

    
[0x7f9684000e38] live555 demux debug: play start: 0.000000 stop:0.000000
    
[0x7f9684000e38] main demux debug: using access_demux module "live555"
    
[0x7f96840246b8] main decoder debug: looking for decoder module matching "any": 39 candidates
    
[0x7f96840246b8] avcodec decoder debug: trying to use direct rendering
    
[0x7f96840246b8] avcodec decoder debug: allowing 3 thread(s) for decoding
    
[0x7f96840246b8] avcodec decoder debug: avcodec codec (H264 - MPEG-4 AVC (part 10)) started
    
[0x7f96840246b8] avcodec decoder debug: using frame thread mode with 3 threads
    
[0x7f96840246b8] main decoder debug: using decoder module "avcodec"
    
[0x7f9684034f68] main packetizer debug: looking for packetizer module matching "any": 21 candidates
    
[0x7f9684034f68] main packetizer debug: using packetizer module "packetizer_h264"
    
[0x7f9684150308] main demux meta debug: looking for meta reader module matching "any": 2 candidates
    
[0x7f9684150308] lua demux meta debug: Trying Lua scripts in /home/hashmak/.local/share/vlc/lua/meta/reader
    
[0x7f9684150308] lua demux meta debug: Trying Lua scripts in /usr/lib/vlc/lua/meta/reader
    
[0x7f9684150308] lua demux meta debug: Trying Lua playlist script /usr/lib/vlc/lua/meta/reader/filename.luac
    
[0x7f9684150308] lua demux meta debug: Trying Lua scripts in /usr/share/vlc/lua/meta/reader
    
[0x7f9684150308] main demux meta debug: no meta reader modules matched
    
[0x7f968c0009b8] main input debug: `rtsp://127.0.0.1:1234/test.h264' successfully opened
    
[0x7f9684000e38] live555 demux debug: tk->rtpSource->hasBeenSynchronizedUsingRTCP()
    
[0x7f968c0009b8] main input error: ES_OUT_RESET_PCR called
    
[0x7f968c0009b8] main input debug: Buffering 0%
    
[0x7f968c0009b8] main input debug: Buffering 0%
    
[0x7f9684034f68] packetizer_h264 packetizer warning: waiting for SPS/PPS
    
[0x7f968c0009b8] main input debug: Buffering 0%
    
[0x7f9684034f68] packetizer_h264 packetizer warning: waiting for SPS/PPS
    
[0x7f968c0009b8] main input debug: Buffering 0%
    
[0x7f968c0009b8] main input debug: Buffering 0%
    
[0x7f9684034f68] packetizer_h264 packetizer warning: waiting for SPS/PPS
    
[0x7f968c0009b8] main input debug: Buffering 0%
    
[0x7f9684034f68] packetizer_h264 packetizer warning: waiting for SPS/PPS
    
[0x7f968c0009b8] main input debug: Buffering 0%
    
[0x7f9684034f68] packetizer_h264 packetizer warning: waiting for SPS/PPS
    
[0x7f9684034f68] packetizer_h264 packetizer warning: waiting for SPS/PPS
    
[0x7f968c0009b8] main input debug: Buffering 0%
    
[0x7f9684034f68] packetizer_h264 packetizer warning: waiting for SPS/PPS
    
[0x7f968c0009b8] main input debug: Buffering 0%
    
[0x7f9684034f68] packetizer_h264 packetizer warning: waiting for SPS/PPS
    
[0x7f968c0009b8] main input debug: Buffering 0%
    
[0x7f9684034f68] packetizer_h264 packetizer warning: waiting for SPS/PPS
    
[0x7f968c0009b8] main input debug: Buffering 0%
    
[0x7f9684034f68] packetizer_h264 packetizer warning: waiting for SPS/PPS
    
[0x7f968c0009b8] main input debug: Buffering 0%
    
[0x7f9684034f68] packetizer_h264 packetizer warning: waiting for SPS/PPS
    
[0x7f968c0009b8] main input debug: Buffering 0%
    
[0x7f9684034f68] packetizer_h264 packetizer warning: waiting for SPS/PPS
    
[0x7f968c0009b8] main input debug: Buffering 0%
    
[0x7f9684034f68] packetizer_h264 packetizer warning: waiting for SPS/PPS
    
[0x7f968c0009b8] main input debug: Buffering 0%
    
[0x7f9684034f68] packetizer_h264 packetizer warning: waiting for SPS/PPS
    
[0x7f968c0009b8] main input debug: Buffering 0%
    
[0x7f9684034f68] packetizer_h264 packetizer warning: waiting for SPS/PPS
    
[0x7f968c0009b8] main input debug: Buffering 0%
    
[0x7f9684034f68] packetizer_h264 packetizer debug: found NAL_SPS (sps_id=0)
    
[0x7f9684034f68] packetizer_h264 packetizer debug: found NAL_PPS (pps_id=0 sps_id=0)
    
[0x7f968c0009b8] main input debug: Buffering 0%
    
[0x7f968c0009b8] main input debug: Buffering 0%
    
[0x7f9694002718] main spu text debug: looking for text renderer module matching "any": 2 candidates
    
[0x7f9694002718] freetype spu text debug: Building font databases.
    
[0x7f9694002718] freetype spu text debug: Took 0 microseconds
    
Fontconfig warning: FcPattern object size does not accept value "0"
    
Fontconfig warning: FcPattern object size does not accept value "0"
    
[0x7f9694002718] freetype spu text debug: Using Serif Bold as font from file /usr/share/fonts/truetype/dejavu/DejaVuSans.ttf
    
[0x7f9694002718] freetype spu text debug: using fontsize: 2
    
[0x7f9694002718] main spu text debug: using text renderer module "freetype"
    
[0x7f969400e408] main scale debug: looking for video filter2 module matching "any": 55 candidates
    
[0x7f969400e408] swscale scale debug: 32x32 chroma: YUVA -> 16x16 chroma: RGBA with scaling using Bicubic (good quality)
    
[0x7f969400e408] main scale debug: using video filter2 module "swscale"
    
[0x7f9694025cc8] main scale debug: looking for video filter2 module matching "any": 55 candidates
    
[0x7f9694025cc8] yuvp scale debug: YUVP to YUVA converter
    
[0x7f9694025cc8] main scale debug: using video filter2 module "yuvp"
    
[0x7f9694001428] main video output debug: Deinterlacing available
    
[0x7f9694001428] main video output debug: deinterlace 0, mode blend, is_needed 0
    
[0x7f968c0009b8] main input debug: Buffering 0%
    
[0x7f9694001428] main video output debug: Opening vout display wrapper
    
[0x7f9674001248] main vout display debug: looking for vout display module matching "any": 12 candidates
    
[0x7f9674002618] main window debug: looking for vout window xid module matching "qt4,any": 4 candidates
    
[0x7f9674002618] qt4 window debug: requesting video window...
    
[0x6f3208] qt4 interface debug: Video was requested 0, 0
    
[0x7f968c0009b8] main input debug: Buffering 0%
    
[0x7f9674002618] main window debug: using vout window xid module "qt4"
    
[0x7f96740027e8] main inhibit debug: looking for inhibit module matching "any": 2 candidates
    
[0x7f96740027e8] dbus_screensaver inhibit debug: found service org.freedesktop.ScreenSaver
    
[0x7f96740027e8] main inhibit debug: using inhibit module "dbus_screensaver"
    
[0x7f9674001248] xcb_glx vout display debug: connected to X11.0 server
    
[0x7f9674001248] xcb_glx vout display debug:  vendor : The X.Org Foundation
    
[0x7f9674001248] xcb_glx vout display debug:  version: 11702000
    
[0x7f9674001248] xcb_glx vout display debug: using screen 0x73
    
[0x7f9674001248] xcb_glx vout display debug: using GLX extension version 1.4
    
[0x7f9674001248] xcb_glx vout display debug: using X11 window 05400000
    
shader program 1: WARNING: Output of vertex shader 'TexCoord1' not read by fragment shader
    
WARNING: Output of vertex shader 'TexCoord2' not read by fragment shader
    

    
[0x7f9674001248] main vout display debug: VoutDisplayEvent 'fullscreen' 0
    
[0x7f9674001248] main vout display debug: VoutDisplayEvent 'resize' 1215x724 window
    
[0x7f9674001248] main vout display debug: using vout display module "xcb_glx"
    
[0x7f9694001428] main video output debug: original format sz 640x480, of (0,0), vsz 640x480, 4cc I420, sar 1:1, msk r0x0 g0x0 b0x0
    
[0x7f9694002718] main spu text debug: removing module "freetype"
    
[0x7f9694002718] main spu text debug: looking for text renderer module matching "any": 2 candidates
    
[0x7f9694002718] freetype spu text debug: Building font databases.
    
[0x7f9694002718] freetype spu text debug: Took 0 microseconds
    
Fontconfig warning: FcPattern object size does not accept value "0"
    
Fontconfig warning: FcPattern object size does not accept value "0"
    
[0x7f9694002718] freetype spu text debug: Using Serif Bold as font from file /usr/share/fonts/truetype/dejavu/DejaVuSans.ttf
    
[0x7f9694002718] freetype spu text debug: using fontsize: 2
    
[0x7f9694002718] main spu text debug: using text renderer module "freetype"
    
[0x7f96840246b8] avcodec decoder debug: using direct rendering
    
[0x7f968c0009b8] main input debug: Buffering 0%
    
[0x7f96840246b8] main decoder debug: End of video preroll
    
[0x7f96840246b8] main decoder debug: Received first picture
    
[0x7f9674001248] xcb_glx vout display debug: display is visible
    
[0x7f9674001248] main vout display error: Failed to resize display
    
[0x7f968c0009b8] main input debug: Buffering 0%
    
[h264 @ 0x7f9684037e40] illegal short term buffer state detected
    
[0x7f968c0009b8] main input debug: Buffering 0%
    
[0x7f968c0009b8] main input debug: Buffering 0%
    
[0x7f968c0009b8] main input debug: Buffering 0%
    
[0x7f968c0009b8] main input debug: Buffering 0%
    
[0x7f968c0009b8] main input debug: Buffering 0%
    
[0x7f968c0009b8] main input debug: Buffering 0%
    
[0x7f968c0009b8] main input debug: Buffering 0%
    
[0x7f968c0009b8] main input debug: Buffering 0%
    
[0x7f968c0009b8] main input debug: Buffering 0%
    
[0x7f968c0009b8] main input debug: Buffering 0%
    
[0x7f968c0009b8] main input debug: Buffering 0%
    
[0x7f968c0009b8] main input debug: Buffering 0%
    
[0x7f968c0009b8] main input debug: Buffering 0%
    
[0x7f968c0009b8] main input debug: Buffering 0%
    
[0x7f968c0009b8] main input debug: Buffering 0%
    
[0x7f968c0009b8] main input debug: Buffering 0%
    
[0x7f968c0009b8] main input debug: Buffering 0%
    
[0x7f968c0009b8] main input debug: Buffering 0%
    
[0x7f968c0009b8] main input debug: Buffering 0%
    
[0x7f968c0009b8] main input debug: Buffering 0%
    
[0x7f968c0009b8] main input debug: Buffering 0%
    
[0x7f968c0009b8] main input debug: Buffering 0%
    
[0x7f968c0009b8] main input debug: Buffering 0%
    
[0x7f9674001248] main vout display debug: auto hiding mouse cursor
    
[0x7f968c0009b8] main input debug: Buffering 0%
    
[0x7f968c0009b8] main input debug: Buffering 0%
    
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[0x7f968c0009b8] main input debug: Buffering 0%
    

    

    
[0x7f968c0009b8] main input debug: Buffering 0%
    

    
[0x7f968c0009b8] main input debug: Buffering 0%
    

    
[0x7f968c0009b8] main input debug: Buffering 0%
    

    

    

    

    
[0x7f968c0009b8] main input debug: Buffering 0%
    
[0x7f968c0009b8] main input debug: Buffering 0%
    
[0x7f968c0009b8] main input debug: Buffering 0%
    
[0x7f968c0009b8] main input debug: Buffering 0%
    

    
[0x7f968c0009b8] main input debug: Buffering 0%
    

    
[0x7f968c0009b8] main input debug: Buffering 0%
    

    
[0x7f968c0009b8] main input debug: Buffering 0%
    

    

    
[0x7f968c0009b8] main input debug: Buffering 0%
    

    

    
[0x7f968c0009b8] main input debug: Buffering 0%
    

    

    
[0x7f968c0009b8] main input debug: Buffering 0%
    

    
[0x7f968c0009b8] main input debug: Buffering 0%

    Here you can see, VLC is always waiting on buffering, while other players can get buffers from my RTSP server, also I can see RTP packets on wireshark that server is continuously sending data to VLC.

    Can someone help me on this issue ?

    Very much thanks in advance.

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