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Autres articles (9)

  • 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" (...)

  • Les formats acceptés

    28 janvier 2010, par

    Les commandes suivantes permettent d’avoir des informations sur les formats et codecs gérés par l’installation local de ffmpeg :
    ffmpeg -codecs ffmpeg -formats
    Les format videos acceptés en entrée
    Cette liste est non exhaustive, elle met en exergue les principaux formats utilisés : h264 : H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 m4v : raw MPEG-4 video format flv : Flash Video (FLV) / Sorenson Spark / Sorenson H.263 Theora wmv :
    Les formats vidéos de sortie possibles
    Dans un premier temps on (...)

  • Les vidéos

    21 avril 2011, par

    Comme les documents de type "audio", Mediaspip affiche dans la mesure du possible les vidéos grâce à la balise html5 .
    Un des inconvénients de cette balise est qu’elle n’est pas reconnue correctement par certains navigateurs (Internet Explorer pour ne pas le nommer) et que chaque navigateur ne gère en natif que certains formats de vidéos.
    Son avantage principal quant à lui est de bénéficier de la prise en charge native de vidéos dans les navigateur et donc de se passer de l’utilisation de Flash et (...)

Sur d’autres sites (4098)

  • FFMPEG error while receiving rtsp stream

    8 avril 2014, par Pawel Rutka

    I got error with receiving rtsp stream from IPCam Edimax IC-3030 and I don't know what to do. Can anyone help me or show me a way to solution ?

    /home/prog12# ffplay "rtsp://192.168.1.7/ipcam_h264.sdp"
    
ffplay version 2.1.4 Copyright (c) 2003-2014 the FFmpeg developers
    
built on Mar 22 2014 18:16:53 with gcc 4.8 (Ubuntu/Linaro 4.8.1-10ubuntu9)
    
configuration: --enable-gpl --enable-version3 --enable-nonfree --enable-postproc --enable-libfaac --enable-      libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvorbis --enable-libx264 --enable- libxvid --enable-x11grab --enable-libvpx --enable-libmp3lame
    

    
ALSA lib pulse.c:243:(pulse_connect) PulseAudio: Unable to connect: Access denied
    

    
 [rtsp @ 0xb0c006c0] UDP timeout, retrying with TCPsq=    0B f=0/0   
    
 [rtsp @ 0xb0c006c0] method PAUSE failed: 501 Not Implemented
    
 [rtsp @ 0xb0c006c0] Could not find codec parameters for stream 0 (Video: h264): unspecified size
    
 Consider increasing the value for the 'analyzeduration' and 'probesize' options
    
 Input #0, rtsp, from 'rtsp://192.168.1.7/ipcam_h264.sdp':
    
 Metadata:
    
title           : IPCam
    
 Duration: N/A, bitrate: 64 kb/s
    
Stream #0:0: Video: h264, 90k tbr, 90k tbn, 180k tbc
    
Stream #0:1: Audio: pcm_alaw, 8000 Hz, 1 channels, s16, 64 kb/s
    
SDL_OpenAudio (1 channels): 
    
No more channel combinations to try, audio open failed
    
[rtsp @ 0xb0c006c0] UDP timeout, retrying with TCPsq=    0B f=0/0   
    
[rtsp @ 0xb0c006c0] method PAUSE failed: 501 Not Implemented
    
[rtsp @ 0xb0c006c0] UDP timeout, retrying with TCPsq=    0B f=0/0   
    
[rtsp @ 0xb0c006c0] method PAUSE failed: 501 Not Implementedf=0/0   
    
[rtsp @ 0xb0c006c0] UDP timeout, retrying with TCPsq=    0B f=0/0   
    
[rtsp @ 0xb0c006c0] method PAUSE failed: 501 Not Implemented
    
nan M-V:    nan fd=   0 aq=    0KB vq=    0KB sq=    0B f=0/0   
    
nan M-V:    nan fd=   0 aq=    0KB vq=    0KB sq=    0B f=0/0   
    
nan M-V:    nan fd=   0 aq=    0KB vq=    0KB sq=    0B f=0/0   
    
nan M-V:    nan fd=   0 aq=    0KB vq=    0KB sq=    0B f=0/0   
    
nan M-V:    nan fd=   0 aq=    0KB vq=    0KB sq=    0B f=0/0  

    Thats the output.

    EDIT

    ps ax| grep -i pulse 
    
8904 ?        S<l></l>usr/bin/pulseaudio --start --log-target=syslog
    
10369 pts/1    S+     0:00 grep --color=auto -i pulse

    And for new command :

    sudo ffplay -video_size 640x480 "rtsp://192.168.1.7/ipcam_h264.sdp"
    
ffplay version 2.1.4 Copyright (c) 2003-2014 the FFmpeg developers
    
built on Mar 22 2014 18:16:53 with gcc 4.8 (Ubuntu/Linaro 4.8.1-10ubuntu9)
    
configuration: --enable-gpl --enable-version3 --enable-nonfree --enable-postproc --enable-libfaac --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvorbis --enable-libx264 --enable-libxvid --enable-x11grab --enable-libvpx --enable-libmp3lame
    

    
Option video_size not found.aq=    0KB vq=    0KB sq=    0B f=0/0  

  • gdb not stopping at even trivial breakpoints

    18 novembre 2015, par baruch

    I am trying to debug ffplay (a debug build) compiled using mingw-w64 on msys2 on Windows 7 64bit. I tried setting breakpoints using gdb, and they seem to be set fine, but the program does not stop. So i tried issuing start, and again it didn’t stop. I tried manually setting a breakpoint at main, but it still didn’t stop. I verified that main is found, and it is. Here is a portion of the session. Any explanation what might cause this ?

    (gdb) start
    
Temporary breakpoint 1 at 0x140013f7c: file C:/Users/bubaruch/Documents/projects/ffmpeg/ffmpeg/ffplay.c, line 3756.
    
Starting program: C:\Users\bubaruch\Documents\projects\ffmpeg\b2\ffplay_g.exe
    
[New Thread 7752.0x275c]
    
ffplay version 2.8.git Copyright (c) 2003-2015 the FFmpeg developers
    
  built with gcc 5.2.0 (Rev4, Built by MSYS2 project)
    
  configuration: --disable-doc --disable-optimizations
    
  libavutil      55.  5.100 / 55.  5.100
    
  libavcodec     57. 15.100 / 57. 15.100
    
  libavformat    57. 14.100 / 57. 14.100
    
  libavdevice    57.  0.100 / 57.  0.100
    
  libavfilter     6. 15.100 /  6. 15.100
    
  libswscale      4.  0.100 /  4.  0.100
    
  libswresample   2.  0.101 /  2.  0.101
    
Simple media player
    
usage: ffplay [options] input_file
    

    
An input file must be specified
    
Use -h to get full help or, even better, run 'man ffplay'
    
[Inferior 1 (process 7752) exited with code 01]
    

    
(gdb) l main
    
3748       return 1;
    
3749    }
    
3750
    
3751    /* Called from the main */
    
3752    int main(int argc, char **argv)
    
3753    {
    
3754        int flags;
    
3755        VideoState *is;
    
3756        char dummy_videodriver[] = "SDL_VIDEODRIVER=dummy";
    
3757
    

    
(gdb) b main
    
Breakpoint 2 at 0x140013f7c: file C:/Users/bubaruch/Documents/projects/ffmpeg/ffmpeg/ffplay.c, line 3756.
    

    
(gdb) r
    
Starting program: C:\Users\bubaruch\Documents\projects\ffmpeg\b2\ffplay_g.exe
    
[New Thread 15388.0x3278]
    
ffplay version 2.8.git Copyright (c) 2003-2015 the FFmpeg developers
    
  built with gcc 5.2.0 (Rev4, Built by MSYS2 project)
    
  configuration: --disable-doc --disable-optimizations
    
  libavutil      55.  5.100 / 55.  5.100
    
  libavcodec     57. 15.100 / 57. 15.100
    
  libavformat    57. 14.100 / 57. 14.100
    
  libavdevice    57.  0.100 / 57.  0.100
    
  libavfilter     6. 15.100 /  6. 15.100
    
  libswscale      4.  0.100 /  4.  0.100
    
  libswresample   2.  0.101 /  2.  0.101
    
Simple media player
    
usage: ffplay [options] input_file
    

    
An input file must be specified
    
Use -h to get full help or, even better, run 'man ffplay'
    
[Inferior 1 (process 15388) exited with code 01]

  • avcodec/x86/mpegvideoenc : remove av_assert2() for variable alignment

    22 août 2024, par Ramiro Polla
    avcodec/x86/mpegvideoenc : remove av_assert2() for variable alignment

    It's safe to assume that LOCAL_ALIGNED_16 does indeed align. Otherwise
    
we would have many more problems...
    

    This assert was added in f8188626 all the way back in 2003.
    • [DH] libavcodec/x86/mpegvideoenc_template.c

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