Recherche avancée

Médias (0)

Mot : - Tags -/médias

Aucun média correspondant à vos critères n’est disponible sur le site.

Autres articles (74)

  • Organiser par catégorie

    17 mai 2013, par

    Dans MédiaSPIP, une rubrique a 2 noms : catégorie et rubrique.
    Les différents documents stockés dans MédiaSPIP peuvent être rangés dans différentes catégories. On peut créer une catégorie en cliquant sur "publier une catégorie" dans le menu publier en haut à droite ( après authentification ). Une catégorie peut être rangée dans une autre catégorie aussi ce qui fait qu’on peut construire une arborescence de catégories.
    Lors de la publication prochaine d’un document, la nouvelle catégorie créée sera proposée (...)

  • Publier sur MédiaSpip

    13 juin 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

  • Use, discuss, criticize

    13 avril 2011, par

    Talk to people directly involved in MediaSPIP’s development, or to people around you who could use MediaSPIP to share, enhance or develop their creative projects.
    The bigger the community, the more MediaSPIP’s potential will be explored and the faster the software will evolve.
    A discussion list is available for all exchanges between users.

Sur d’autres sites (6342)

  • FFMPEG incorrect image extension fails coding [closed]

    14 novembre 2016, par G.T.

    I have a problem using ffmpeg on images. My problem is that quite a lot of images on the internet has incorrect extension ( png files names .jpg and jpg files named .png) which makes the ffmpeg fail.

    I couldn’t find any documentation on the internet how can this be fixed ? Can I force somehow ffmpeg to try to look in other codec types too not just the ones the extension suggests ?

    To reproduce this you just need to download a png from the internet and rename it’s extension to .jpg

    And even if you use the simplest command like ffmpeg -i image.jpg it fails with :

    ffprobe.exe -i tux.jpg -report
    ffprobe version N-61663-g19139d8 Copyright (c) 2007-2014 the FFmpeg developers
     built on Mar 20 2014 22:06:17 with gcc 4.8.2 (GCC)
     configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetype --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-zlib
     libavutil      52. 67.100 / 52. 67.100
     libavcodec     55. 52.102 / 55. 52.102
     libavformat    55. 34.101 / 55. 34.101
     libavdevice    55. 11.100 / 55. 11.100
     libavfilter     4.  3.100 /  4.  3.100
     libswscale      2.  5.102 /  2.  5.102
     libswresample   0. 18.100 /  0. 18.100
     libpostproc    52.  3.100 / 52.  3.100
    [AVIOContext @ 00000000041614e0] Statistics: 41236 bytes read, 0 seeks
    [mjpeg @ 0000000004160d60] marker=db avail_size_in_buf=41068
    [mjpeg @ 0000000004160d60] dqt: invalid precision
    [mjpeg @ 0000000004160d60] marker parser used 3 bytes (20 bits)
    [mjpeg @ 0000000004160d60] marker=fe avail_size_in_buf=40036
    [mjpeg @ 0000000004160d60] marker parser used 2 bytes (16 bits)
    [mjpeg @ 0000000004160d60] marker=cf avail_size_in_buf=39899
    [mjpeg @ 0000000004160d60] mjpeg: unsupported coding type (cf)
    [mjpeg @ 0000000004160d60] marker parser used 0 bytes (0 bits)
    [mjpeg @ 0000000004160d60] marker=c3 avail_size_in_buf=39465
    [mjpeg @ 0000000004160d60] sof0: picture: 4697x50895
    [image2 @ 000000000415fee0] decoding for stream 0 failed
    [image2 @ 000000000415fee0] Could not find codec parameters for stream 0 (Video: mjpeg): unspecified size
    Consider increasing the value for the 'analyzeduration' and 'probesize' options
    tux.jpg: End of file

    PS : I tried to increase analyzeduration and probsize if that’s not obvious but same thing happens.

  • 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  
  • Green overlay with multiply blend mode using FFMPEG

    25 mars 2014, par Barto

    I'm currently working on a project which needs video editing.
    Here for I'm using ffmpeg, which is working pretty well, except for 1 filter.
    Every video should get an overlay with the Photoshop multiply blend mode.
    I'm using the ffmpeg blend mode, but unfortunately the video gets a green overlay as you can see in the screenshots.

    Original Image
    Original Image

    Edited with ffmpegFFMPEG

    What I'm trying to achieve
    Edited

    Does this has something to do with the mode I'm working in ?
    Below is my current code

    #!/bin/bash
    vagrant ssh -c "./ffmpeg \
    -i /vagrant/public/uploads/video/bw_RzWecVH02p.avi -i /vagrant/public/img/red_ellipse.png \
    -filter_complex "blend=all_mode=&#39;multiply&#39;" \
    /vagrant/public/uploads/video/overlay_RzWecVH02p.mp4"

    Here is my ffmpeg output

    $ overlay_edit.sh
    ffmpeg version N-61445-gdded5ed Copyright (c) 2000-2014 the FFmpeg developers
     built on Mar 14 2014 05:12:40 with gcc 4.6 (Debian 4.6.3-1)
     configuration: --prefix=/root/ffmpeg-static/32bit --arch=x86_32 --extra-cflags
    =&#39;-m32 -I/root/ffmpeg-static/32bit/include -static&#39; --extra-ldflags=&#39;-m32 -L/roo
    t/ffmpeg-static/32bit/lib -static&#39; --extra-libs=&#39;-lxml2 -lexpat -lfreetype&#39; --en
    able-static --disable-shared --disable-ffserver --disable-doc --enable-bzlib --e
    nable-zlib --enable-postproc --enable-runtime-cpudetect --enable-libx264 --enabl
    e-gpl --enable-libtheora --enable-libvorbis --enable-libmp3lame --enable-gray --
    enable-libass --enable-libfreetype --enable-libopenjpeg --enable-libspeex --enab
    le-libvo-aacenc --enable-libvo-amrwbenc --enable-version3 --enable-libvpx
     libavutil      52. 66.101 / 52. 66.101
     libavcodec     55. 52.102 / 55. 52.102
     libavformat    55. 34.101 / 55. 34.101
     libavdevice    55. 11.100 / 55. 11.100
     libavfilter     4.  3.100 /  4.  3.100
     libswscale      2.  5.101 /  2.  5.101
     libswresample   0. 18.100 /  0. 18.100
     libpostproc    52.  3.100 / 52.  3.100
    Input #0, avi, from &#39;/vagrant/public/uploads/video/bw_RzWecVH02p.avi&#39;:
     Metadata:
       comment         : Converted by www.scriptcam.com
       encoder         : Lavf55.34.101
     Duration: 00:00:06.10, start: 0.000000, bitrate: 315 kb/s
       Stream #0:0: Video: mpeg4 (Simple Profile) (FMP4 / 0x34504D46), yuv420p, 320
    x240 [SAR 1:1 DAR 4:3], 268 kb/s, 30 tbr, 30 tbn, 30 tbc
       Stream #0:1: Audio: mp3 (U[0][0][0] / 0x0055), 16000 Hz, mono, s16p, 24 kb/s

    Input #1, image2, from &#39;/vagrant/public/img/red_ellipse.png&#39;:
     Duration: 00:00:00.04, start: 0.000000, bitrate: N/A
       Stream #1:0: Video: png, rgb24, 320x240 [SAR 11811:11811 DAR 4:3], 25 tbr, 2
    5 tbn, 25 tbc
    [libx264 @ 0xa9c70c0] using SAR=1/1
    [libx264 @ 0xa9c70c0] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle Ca
    che64
    [libx264 @ 0xa9c70c0] profile High, level 1.3
    [libx264 @ 0xa9c70c0] 264 - core 129 r2230 1cffe9f - H.264/MPEG-4 AVC codec - Co
    pyleft 2003-2012 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 de
    block=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1
    me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chr
    oma_qp_offset=-2 threads=1 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1
    interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1
    b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scene
    cut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin
    =0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
    Output #0, mp4, to &#39;/vagrant/public/uploads/video/overlay_RzWecVH02p.mp4&#39;:
     Metadata:
       comment         : Converted by www.scriptcam.com
       encoder         : Lavf55.34.101
       Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 320x24
    0 [SAR 1:1 DAR 4:3], q=-1--1, 15360 tbn, 30 tbc (default)
       Stream #0:1: Audio: aac (libvo_aacenc) ([64][0][0][0] / 0x0040), 16000 Hz, m
    ono, s16, 128 kb/s
    Stream mapping:
     Stream #0:0 (mpeg4) -> blend:top (graph 0)
     Stream #1:0 (png) -> blend:bottom (graph 0)
     blend (graph 0) -> Stream #0:0 (libx264)
     Stream #0:1 -> #0:1 (mp3 -> libvo_aacenc)
    Press [q] to stop, [?] for help
    frame=   91 fps=0.0 q=29.0 size=      42kB time=00:00:02.90 bitrate= 117.7kbits/
    frame=  140 fps=135 q=29.0 size=     105kB time=00:00:04.57 bitrate= 187.3kbits/
    frame=  182 fps=106 q=29.0 Lsize=     178kB time=00:00:06.04 bitrate= 241.9kbits
    /s dup=52 drop=0
    video:158kB audio:16kB subtitle:0 data:0 global headers:0kB muxing overhead 2.25
    8588%
    [libx264 @ 0xa9c70c0] frame I:1     Avg QP:21.21  size:  9865
    [libx264 @ 0xa9c70c0] frame P:128   Avg QP:25.34  size:  1149
    [libx264 @ 0xa9c70c0] frame B:53    Avg QP:28.50  size:    88
    [libx264 @ 0xa9c70c0] consecutive B-frames: 59.3%  3.3%  6.6% 30.8%
    [libx264 @ 0xa9c70c0] mb I  I16..4:  1.3% 69.3% 29.3%
    [libx264 @ 0xa9c70c0] mb P  I16..4:  1.0%  5.8%  0.3%  P16..4: 35.1%  9.9%  5.6%
     0.0%  0.0%    skip:42.4%
    [libx264 @ 0xa9c70c0] mb B  I16..4:  0.1%  0.4%  0.0%  B16..8: 11.8%  0.5%  0.1%
     direct: 0.1%  skip:86.9%  L0:48.6% L1:47.7% BI: 3.7%
    [libx264 @ 0xa9c70c0] 8x8 transform intra:80.6% inter:80.1%
    [libx264 @ 0xa9c70c0] coded y,uvDC,uvAC intra: 73.1% 14.6% 5.3% inter: 13.2% 2.4
    % 0.4%
    [libx264 @ 0xa9c70c0] i16 v,h,dc,p: 14% 49% 28%  9%
    [libx264 @ 0xa9c70c0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 15% 28% 32%  4%  4%  4%  4%
     4%  6%
    [libx264 @ 0xa9c70c0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 21% 30% 14%  5%  6%  8%  5%
     5%  6%
    [libx264 @ 0xa9c70c0] i8c dc,h,v,p: 76% 13% 11%  1%
    [libx264 @ 0xa9c70c0] Weighted P-Frames: Y:0.8% UV:0.0%
    [libx264 @ 0xa9c70c0] ref P L0: 72.7% 16.4%  8.1%  2.8%  0.0%
    [libx264 @ 0xa9c70c0] ref B L0: 84.7% 13.1%  2.1%
    [libx264 @ 0xa9c70c0] ref B L1: 95.2%  4.8%
    [libx264 @ 0xa9c70c0] kb/s:213.09
    [libvo_aacenc @ 0xa9c82c0] 1 frames left in the queue on closing
    Connection to 127.0.0.1 closed.