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  • Qu’est ce qu’un masque de formulaire

    13 juin 2013, par

    Un masque de formulaire consiste en la personnalisation du formulaire de mise en ligne des médias, rubriques, actualités, éditoriaux et liens vers des sites.
    Chaque formulaire de publication d’objet peut donc être personnalisé.
    Pour accéder à la personnalisation des champs de formulaires, il est nécessaire d’aller dans l’administration de votre MediaSPIP puis de sélectionner "Configuration des masques de formulaires".
    Sélectionnez ensuite le formulaire à modifier en cliquant sur sont type d’objet. (...)

  • MediaSPIP v0.2

    21 juin 2013, par

    MediaSPIP 0.2 is the first MediaSPIP stable release.
    Its official release date is June 21, 2013 and is announced here.
    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 (...)

  • 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 (6909)

  • 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]

  • Frame rate very high for a muxer not efficiently supporting it

    23 avril 2014, par DevDave

    I got an error when trying to run the following command with FFMpeg :

    -i "file1.mp4" -s 506x406 -b:v 2000k -ar 22050 "file2.mp4"

    FFMpeg was stuck converting this video, which was just a 7Mb .mp4 file, for hours and eventually I had to kill the process.

    The output error from FFMpeg is as follows :

    Converter Error Message: 
    
ffmpeg version N-42069-g3233ad4 Copyright (c) 2000-2012 the FFmpeg developers
    
  built on Jun 30 2012 13:18:20 with gcc 4.7.1
    
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-runtime-cpudetect --enable-avisynth --enable-bzlib --enable-frei0r --enable-libass --enable-libcelt --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libfreetype --enable-libgsm --enable-libmp3lame --enable-libnut --enable-libopenjpeg --enable-librtmp --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libutvideo --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib
    
  libavutil      51. 63.100 / 51. 63.100
    
  libavcodec     54. 31.100 / 54. 31.100
    
  libavformat    54. 14.100 / 54. 14.100
    
  libavdevice    54.  0.100 / 54.  0.100
    
  libavfilter     3.  0.100 /  3.  0.100
    
  libswscale      2.  1.100 /  2.  1.100
    
  libswresample   0. 15.100 /  0. 15.100
    
  libpostproc    52.  0.100 / 52.  0.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'File1.mp4':
    
  Metadata:
    
    major_brand     : mp42
    
    minor_version   : 1
    
    compatible_brands: mp42mp41
    
    creation_time   : 2013-07-18 15:38:11
    
  Duration: 00:02:02.23, start: -7.105889, bitrate: 518 kb/s
    
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 718x574 [SAR 64:45 DAR 22976:12915], 361 kb/s, 24.97 fps, 90k tbr, 90k tbn, 180k tbc
    
    Metadata:
    
      creation_time   : 2013-07-18 15:38:11
    
      handler_name    : Apple Video Media Handler
    
    Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, s16, 129 kb/s
    
    Metadata:
    
      creation_time   : 2013-07-18 15:38:11
    
      handler_name    : Apple Sound Media Handler
    
[graph 0 input from stream 0:0 @ 0259cee0] w:718 h:574 pixfmt:yuv420p tb:1/90000 fr:90000/1 sar:64/45 sws_param:flags=2
    
[output stream 0:0 @ 0259cda0] No opaque field provided
    
[scaler for output stream 0:0 @ 0259c0e0] w:718 h:574 fmt:yuv420p sar:64/45 -> w:506 h:406 fmt:yuv420p sar:666304/466785 flags:0x4
    
**[mp4 @ 02599020] Frame rate very high for a muxer not efficiently supporting it.
    
Please consider specifying a lower framerate, a different muxer or -vsync 2**
    
[graph 1 input from stream 0:1 @ 02b88200] tb:1/48000 samplefmt:s16 samplerate:48000 chlayout:0x3
    
[auto-inserted resampler 0 @ 024e44e0] chl:stereo fmt:s16 r:48000Hz -> chl:stereo fmt:s16 r:22050Hz
    
[libx264 @ 02407200] using SAR=895/627
    
[libx264 @ 02407200] MB rate (74880000) > level limit (2073600)
    
[libx264 @ 02407200] using cpu capabilities: MMX2 SSE2Fast SSSE3 Cache64
    
[libx264 @ 02407200] profile High, level 5.2
    
[libx264 @ 02407200] 264 - core 125 r2200 999b753 - H.264/MPEG-4 AVC codec - Copyleft 2003-2012 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=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 chroma_qp_offset=-2 threads=3 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 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=abr mbtree=1 bitrate=2000 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
    
Output #0, mp4, to 'File2.mp4':
    
  Metadata:
    
    major_brand     : mp42
    
    minor_version   : 1
    
    compatible_brands: mp42mp41
    
    encoder         : Lavf54.14.100
    
    Stream #0:0(und): Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 506x406 [SAR 666304:466785 DAR 22976:12915], q=-1--1, 2000 kb/s, 180k tbn, 90k tbc
    
    Metadata:
    
      creation_time   : 2013-07-18 15:38:11
    
      handler_name    : Apple Video Media Handler
    
    Stream #0:1(und): Audio: aac ([64][0][0][0] / 0x0040), 22050 Hz, stereo, s16, 128 kb/s
    
    Metadata:
    
      creation_time   : 2013-07-18 15:38:11
    
      handler_name    : Apple Sound Media Handler
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (h264 -> libx264)
    
  Stream #0:1 -> #0:1 (aac -> libvo_aacenc)
    
Press [q] to stop, [?] for help
    
DTS -3600, next:-79995 st:0 invalid dropping
    
frame= 7201 fps=768 q=69.0 size=       0kB time=00:00:00.00 bitrate=   0.0kbits/s dup=7198 drop=0    
    
frame=10801 fps=575 q=69.0 size=       0kB time=00:00:00.00 bitrate=   0.0kbits/s dup=10797 drop=0    
    
frame=14401 fps=516 q=69.0 size=       0kB time=00:00:00.00 bitrate=   0.0kbits/s dup=14396 drop=0    
    
frame=18001 fps=484 q=69.0 size=       0kB time=00:00:00.00 bitrate=   0.0kbits/s dup=17995 drop=0    
    
frame=21601 fps=464 q=69.0 size=       0kB time=00:00:00.00 bitrate=   0.0kbits/s dup=21594 drop=0    
    
frame=25201 fps=454 q=69.0 size=       0kB time=00:00:00.00 bitrate=   0.0kbits/s dup=25193 drop=0    
    
.....

    And it just pretty much carries on like that until when I killed the process.

    Can anyone explain to me what is going on here and what I can do to fix this ?

  • webm to mp4 conversion using ffmpeg

    2 décembre 2015, par Pavan K

    When I try to convert a webm file to mp4 the output is very very choppy and it appears as if many frames have been dropped by ffmpeg

    I used the following commands to convert

    ffmpeg -i movie.webm movie.mp4
    
ffmpeg -i movie.webm -vcodec libx264 movie.mp4
    
ffmpeg -i movie.webm -vcodec libx264 -qscale 0 movie.mp4

    All of them have the same problem. When I use ffprobe it seems to show the frames more or less properly.

    UPDATE :

     built on Jun 14 2013 14:31:50 with gcc 4.7 (Ubuntu/Linaro 4.7.2-2ubuntu1)
    
  configuration: --prefix=/home/user2/ffmpeg_build --extra-cflags=-I/home/user2/ffmpeg_build/include --extra-ldflags=-L/home/pavan4/ffmpeg_build/lib --bindir=/home/pavan4/bin --extra-libs=-ldl --enable-gpl --enable-libass --enable-libfdk-aac --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree --enable-x11grab
    
  libavutil      52. 35.101 / 52. 35.101
    
  libavcodec     55. 16.100 / 55. 16.100
    
  libavformat    55.  8.102 / 55.  8.102
    
  libavdevice    55.  2.100 / 55.  2.100
    
  libavfilter     3. 77.101 /  3. 77.101
    
  libswscale      2.  3.100 /  2.  3.100
    
  libswresample   0. 17.102 /  0. 17.102
    
  libpostproc    52.  3.100 / 52.  3.100
    
Hyper fast Audio and Video encoder
    
usage: ffmpeg [options] [[infile options] -i infile]... {[outfile options] outfile}...
    

    
Use -h to get full help or, even better, run 'man ffmpeg'
    

    
Input #0, matroska,webm, from '1.webm':
    
  Duration: 00:00:10.64, start: 0.000000, bitrate: 5024 kb/s
    
    Stream #0:0(eng): Video: vp8, yuv420p, 1280x720, SAR 1:1 DAR 16:9, 1k fps, 1k tbr, 1k tbn, 1k tbc (default)
    
[libx264 @ 0x1d966a0] using SAR=1/1
    
[libx264 @ 0x1d966a0] MB rate (3600000) > level limit (2073600)
    
[libx264 @ 0x1d966a0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
    
[libx264 @ 0x1d966a0] profile High, level 5.2
    
[libx264 @ 0x1d966a0] 264 - core 133 r2 a3ac64b - H.264/MPEG-4 AVC codec - Copyleft 2003-2013 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=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 chroma_qp_offset=-2 threads=12 lookahead_threads=2 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 scenecut=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 '1_conv4.mp4':
    
  Metadata:
    
    encoder         : Lavf55.8.102
    
    Stream #0:0(eng): Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], q=-1--1, 16k tbn, 1k tbc (default)
    
Stream mapping:
    
Stream #0:0 -> #0:0 (vp8 -> libx264)
    
Press [q] to stop, [?] for help
    
frame=  168 fps=0.0 q=33.0 size=      62kB time=00:00:00.11 bitrate=4606.0kbits/frame=  293 fps=230 q=33.0 size=     138kB time=00:00:00.23 bitrate=4809.7kbits/
    

    
video:5620kB audio:0kB subtitle:0 global headers:0kB muxing overhead 2.212461%
    
[libx264 @ 0x1d966a0] frame I:46    Avg QP:18.50  size: 39849
    
[libx264 @ 0x1d966a0] frame P:2940  Avg QP:18.27  size:  1222
    
[libx264 @ 0x1d966a0] frame B:7651  Avg QP:17.68  size:    43
    
[libx264 @ 0x1d966a0] consecutive B-frames:  4.0%  0.2%  0.3% 95.5%
    
[libx264 @ 0x1d966a0] mb I  I16..4: 19.9% 63.2% 16.9%
    
[libx264 @ 0x1d966a0] mb P  I16..4:  0.2%  0.5%  0.1%  P16..4:  3.9%  1.1%  0.6%  0.0%  0.0%    skip:93.6%
    
[libx264 @ 0x1d966a0] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8:  0.2%  0.0%  0.0%  direct: 0.0%  skip:99.8%  L0:25.1% L1:74.9% BI: 0.0%
    
[libx264 @ 0x1d966a0] 8x8 transform intra:63.6% inter:75.9%
    
[libx264 @ 0x1d966a0] coded y,uvDC,uvAC intra: 61.5% 53.4% 24.4% inter: 0.5% 0.5% 0.0%
    
[libx264 @ 0x1d966a0] i16 v,h,dc,p: 52% 19% 19% 11%
    
[libx264 @ 0x1d966a0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 32% 17% 13%  4%  6%  9%  5%  8%  6%
    
[libx264 @ 0x1d966a0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 30% 18% 14%  5%  8% 10%  6%  6%  3%
    
[libx264 @ 0x1d966a0] i8c dc,h,v,p: 55% 17% 24%  4%
    
[libx264 @ 0x1d966a0] Weighted P-Frames: Y:0.0% UV:0.0%
    
[libx264 @ 0x1d966a0] ref P L0: 82.5% 13.2%  4.0%  0.3%
    
[libx264 @ 0x1d966a0] ref B L0: 60.2% 39.2%  0.6%
    
[libx264 @ 0x1d966a0] ref B L1: 98.5%  1.5%
    
[libx264 @ 0x1d966a0] kb/s:4327.77

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