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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)

  • Why does ffplay read both video and keyboard input from stdin ?

    27 janvier 2016, par cxrodgers

    I’m trying to compress a video feed from a webcam while simultaneously displaying it, using ffmpeg and ffplay. I do actually have this working, but I want to disable the ffplay window from interpreting keyboard presses.

    It took me a while to figure this out but here’s what I’m using :

    ffmpeg -f video4linux2 -i /dev/video0 -vcodec mpeg4 -f rawvideo - \
    
  | tee output.mkv \
    
  | ffplay -fflags nobuffer -

    (Actually I am doing all of this from a Python script using the subprocess module. Here I have represented it as a straightforward terminal command because the result is the same.)

    So this actually works and does everything I want. The only thing is that if the ffplay window is active, it interprets keypresses (like "F" for fullscreen). Instead I want it to completely ignore all keypresses.

    My questions :

    1. How is this even possible ? I thought I was redirecting video input to stdin, and then telling ffplay to read video from stdin. How can keypresses be multiplexed on the same pipe ?
    2. How can I disable this behavior ? I tried "-nostdin" but it doesn’t work with my version.

    # ffplay -nostdin output.mkv

    ffplay version N-77455-g4707497 Copyright
    (c) 2003-2015 the FFmpeg developers built with gcc 4.8 (Ubuntu
    4.8.4-2ubuntu1 14.04)

    ...

    Failed to set value ’output.mkv’ for option ’nostdin’ : Option not
    found

  • FFMPEG : Change Video during encoding (using mapping)

    18 octobre 2013, par Tchoupi

    I'm currently trying to concat several videos using a complex filter :

    ffmpeg.exe -threads 8 -i "D:\Temporary0.mp4"  -i "D:\Temporary1.mp4"  -i "D:\Temporary2.mp4"  -filter_complex "[0:v] [0:a] [1:v] [1:a] [2:v] [2:a]  concat=n=3:v=1:a=1 [v] [a] " -map "[v]" -map "[a]"  -vcodec libx264 -b 2500000 -s 1920:1080 -y D:\EditedVideo.mp4

    This command work fine.
    Edit : Here the output of the command :

    ffmpeg version N-56297-g7ac6c63 Copyright (c) 2000-2013 the FFmpeg developers
    
  built on Sep 15 2013 18:02:28 with gcc 4.7.3 (GCC)
    
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libblu
    
ray --enable-libcaca --enable-libfreetype --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-l
    
ibopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-li
    
bvorbis --enable-libvpx --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib
    
  libavutil      52. 43.100 / 52. 43.100
    
  libavcodec     55. 31.101 / 55. 31.101
    
  libavformat    55. 16.102 / 55. 16.102
    
  libavdevice    55.  3.100 / 55.  3.100
    
  libavfilter     3. 84.100 /  3. 84.100
    
  libswscale      2.  5.100 /  2.  5.100
    
  libswresample   0. 17.103 /  0. 17.103
    
  libpostproc    52.  3.100 / 52.  3.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'D:\Temporary0.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf55.16.102
    
  Duration: 00:00:02.91, start: 0.033333, bitrate: 8998 kb/s
    
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 8965 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler
    
Input #1, mov,mp4,m4a,3gp,3g2,mj2, from 'D:\Temporary1.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf55.16.102
    
  Duration: 00:00:05.00, start: 0.023220, bitrate: 846 kb/s
    
    Stream #1:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 835 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #1:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 1 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler
    
Input #2, mov,mp4,m4a,3gp,3g2,mj2, from 'D:\Temporary2.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf55.16.102
    
  Duration: 00:00:04.35, start: 0.033333, bitrate: 4684 kb/s
    
    Stream #2:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 4581 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #2:1(und): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler
    
Please use -b:a or -b:v, -b is ambiguous
    
[libx264 @ 04f617e0] using SAR=1/1
    
[libx264 @ 04f617e0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
    
[libx264 @ 04f617e0] profile High, level 4.0
    
[libx264 @ 04f617e0] 264 - core 135 r2345 f0c1c53 - 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 subm
    
e=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 r
    
c=abr mbtree=1 bitrate=2500 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
    
Output #0, mp4, to 'D:\EditedVideo.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf55.16.102
    
    Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 2500 kb/s, 12800 tbn, 25 tbc
    
    Stream #0:1: Audio: aac (libvo_aacenc) ([64][0][0][0] / 0x0040), 48000 Hz, stereo, s16, 128 kb/s
    
Stream mapping:
    
  Stream #0:0 (h264) -> concat:in0:v0
    
  Stream #0:1 (aac) -> concat:in0:a0
    
  Stream #1:0 (h264) -> concat:in1:v0
    
  Stream #1:1 (aac) -> concat:in1:a0
    
  Stream #2:0 (h264) -> concat:in2:v0
    
  Stream #2:1 (aac) -> concat:in2:a0
    
  concat:out:v0 -> Stream #0:0 (libx264)
    
  concat:out:a0 -> Stream #0:1 (libvo_aacenc)
    
Press [q] to stop, [?] for help
    
frame=  306 fps= 43 q=-1.0 Lsize=    3557kB time=00:00:12.29 bitrate=2369.4kbits/s dup=1 drop=0
    
video:3353kB audio:193kB subtitle:0 global headers:0kB muxing overhead 0.288541%
    
[libx264 @ 04f617e0] frame I:3     Avg QP:21.78  size:173526
    
[libx264 @ 04f617e0] frame P:112   Avg QP:25.76  size: 17363
    
[libx264 @ 04f617e0] frame B:191   Avg QP:31.04  size:  5068
    
[libx264 @ 04f617e0] consecutive B-frames: 11.8% 14.4%  2.0% 71.9%
    
[libx264 @ 04f617e0] mb I  I16..4: 14.6% 82.7%  2.6%
    
[libx264 @ 04f617e0] mb P  I16..4:  3.5%  8.8%  0.2%  P16..4: 30.1%  5.3%  2.6%  0.0%  0.0%    skip:49.4%
    
[libx264 @ 04f617e0] mb B  I16..4:  0.7%  1.1%  0.0%  B16..8: 21.6%  1.2%  0.1%  direct: 1.2%  skip:74.1%  L0:47.0% L1:50.6% BI: 2.4%
    
[libx264 @ 04f617e0] final ratefactor: 25.69
    
[libx264 @ 04f617e0] 8x8 transform intra:70.8% inter:88.5%
    
[libx264 @ 04f617e0] coded y,uvDC,uvAC intra: 34.3% 50.2% 7.2% inter: 7.3% 13.3% 0.3%
    
[libx264 @ 04f617e0] i16 v,h,dc,p: 22% 33%  7% 37%
    
[libx264 @ 04f617e0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 17% 22% 34%  4%  5%  4%  5%  4%  5%
    
[libx264 @ 04f617e0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 27% 22% 18%  5%  6%  6%  5%  6%  4%
    
[libx264 @ 04f617e0] i8c dc,h,v,p: 60% 21% 16%  3%
    
[libx264 @ 04f617e0] Weighted P-Frames: Y:0.0% UV:0.0%
    
[libx264 @ 04f617e0] ref P L0: 62.6%  9.1% 19.8%  8.5%
    
[libx264 @ 04f617e0] ref B L0: 85.3% 12.6%  2.1%
    
[libx264 @ 04f617e0] ref B L1: 92.4%  7.6%
    
[libx264 @ 04f617e0] kb/s:2243.97
    
[libvo_aacenc @ 0420e900] 1 frames left in the queue on closing

    I would like to update this command to change volume during concat and encode time :

    ffmpeg.exe -threads 8 -i "D:\Temporary0.mp4"  -i "D:\Temporary1.mp4"  -i "D:\Temporary2.mp4"  -filter_complex "[0:v] [0:a] [1:v] [1:a] [2:v] [2:a]  concat=n=3:v=1:a=1 [v] [a] " -map "[v]" -map "[a]"  -vcodec libx264 -b 2500000 -s 1920:1080 -af volume="volume=20dB:precision=double" -y D:\EditedVideo.mp4

    This command is executed but the audio stream is not altered with the +20db

    PS : If I do a simple encoding command like

    ffmpeg.exe -i source -vcodec libx264 -af volume="volume=20dB:precision=double" -y output

    Command work fine and audio stream is modified.

    So How can I Do to concat my videos and change audio volume at the same time ?

    Thanks

  • FFmpeg audio doesnt work in converted videos but in pc it does

    28 octobre 2013, par Dirk Swarz

    I use :

    if($ext == "avi" && $convert_avi == true)
    
                    {
    
                        $convert_source = _VIDEOS_DIR_PATH.$new_name;
    
                        $conv_name = substr(md5($file['name'].rand(1,888)), 2, 10).".mp4";
    
                        $converted_file  = _VIDEOS_DIR_PATH.$conv_name;
    
                        $ffmpeg_command = 'ffmpeg -i '.$convert_source.' -acodec libmp3lame -vcodec libx264 -s 1280x720 -ar 44100 -async 44100 -r 29.970 -ac 2 -qscale 5 '.$converted_file;
    
                        echo exec($ffmpeg_command);
    
                        $sql = "UPDATE pm_temp SET url = '".$conv_name."' WHERE url = '".$new_name."' LIMIT 1";
    
                        $result = @mysql_query($sql);
    
                        unlink($convert_source);    
    
                    }

    This code to convert avi to mp4
    ffmpeg concole output :

    root@1tb:~# ffmpeg -i sample.avi -acodec libmp3lame -vcodec libx264 -s 1280x720 -ar 44100 -async 44100 -r 29.970 -ac 2 -qscale 5 goodsample.mp4
    
ffmpeg version 0.7.15, Copyright (c) 2000-2013 the FFmpeg developers
    
  built on Feb 22 2013 07:18:58 with gcc 4.4.5
    
  configuration: --enable-libdc1394 --prefix=/usr --extra-cflags='-Wall -g ' --cc='ccache cc' --enable-shared --enable-libmp3lame --enable-gpl --enable-libvorbis --enable-pthreads --enable-libfaac --enable-libxvid --enable-postproc --enable-x11grab --enable-libgsm --enable-libtheora --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libx264 --enable-libspeex --enable-nonfree --disable-stripping --enable-avfilter --enable-libdirac --disable-decoder=libdirac --enable-libfreetype --enable-libschroedinger --disable-encoder=libschroedinger -                                                                                                                                                             s
    
  libavutil    50. 43. 0 / 50. 43. 0
    
  libavcodec   52.123. 0 / 52.123. 0
    
  libavformat  52.111. 0 / 52.111. 0
    
  libavdevice  52.  5. 0 / 52.  5. 0
    
  libavfilter   1. 80. 0 /  1. 80. 0
    
  libswscale    0. 14. 1 /  0. 14. 1
    
  libpostproc  51.  2. 0 / 51.  2. 0
    
[mp3 @ 0x191d4100] Header missing
    
[mpeg4 @ 0x191d1dc0] Invalid and inefficient vfw-avi packed B frames detected
    
Input #0, avi, from 'sample.avi':
    
  Metadata:
    
    encoder         : VirtualDubMod 1.5.10.2 (build 2540/release)
    
  Duration: 00:01:01.81, start: 0.000000, bitrate: 1194 kb/s
    
    Stream #0.0: Video: mpeg4, yuv420p, 640x352 [PAR 1:1 DAR 20:11], 23.98 tbr,
    
    Stream #0.1: Audio: mp3, 48000 Hz, stereo, s16, 128 kb/s
    
[buffer @ 0x191d1c80] w:640 h:352 pixfmt:yuv420p tb:1/1000000 sar:1/1 sws_param:
    
[scale @ 0x191d6880] w:640 h:352 fmt:yuv420p -> w:1280 h:720 fmt:yuv420p flags:0
    
[libx264 @ 0x191ce5a0] Default settings detected, using medium profile
    
[libx264 @ 0x191ce5a0] using SAR=45/44
    
[libx264 @ 0x191ce5a0] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle S
    
[libx264 @ 0x191ce5a0] profile High, level 3.1
    
[libx264 @ 0x191ce5a0] 264 - core 118 - H.264/MPEG-4 AVC codec - Copyleft 2003-2                                                                                                                                                             6 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_off                                                                                                                                                             1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_l
    
Output #0, mp4, to 'goodsample.mp4':
    
  Metadata:
    
    encoder         : Lavf52.111.0
    
    Stream #0.0: Video: libx264, yuv420p, 1280x720 [PAR 45:44 DAR 20:11], q=2-31
    
    Stream #0.1: Audio: libmp3lame, 44100 Hz, stereo, s16, 64 kb/s
    
Stream mapping:
    
  Stream #0.0 -> #0.0
    
  Stream #0.1 -> #0.1
    
Press [q] to stop, [?] for help
    
[mp3 @ 0x191d4100] Header missing
    
Error while decoding stream #0.1
    
[mpeg4 @ 0x191d1dc0] Invalid and inefficient vfw-avi packed B frames detected
    
[mp3 @ 0x191d4100] incomplete frame 9467kB time=00:01:00.32 bitrate=1285.5kbits/
    
Error while decoding stream #0.1
    
frame= 1852 fps= 20 q=29.0 Lsize=    9652kB time=00:01:01.72 bitrate=1280.9kbits
    
video:9121kB audio:483kB global headers:0kB muxing overhead 0.499688%
    
frame I:11    Avg QP:16.78  size: 51456
    
[libx264 @ 0x191ce5a0] frame P:784   Avg QP:20.81  size:  8954
    
[libx264 @ 0x191ce5a0] frame B:1057  Avg QP:26.06  size:  1659
    
[libx264 @ 0x191ce5a0] consecutive B-frames: 22.0%  3.1%  7.5% 67.4%
    
[libx264 @ 0x191ce5a0] mb I  I16..4: 31.1% 59.8%  9.1%
    
[libx264 @ 0x191ce5a0] mb P  I16..4:  1.8%  2.6%  0.2%  P16..4: 24.3%  7.0%  4.0
    
[libx264 @ 0x191ce5a0] mb B  I16..4:  0.1%  0.1%  0.0%  B16..8: 22.7%  0.8%  0.2
    
[libx264 @ 0x191ce5a0] 8x8 transform intra:57.0% inter:72.6%
    
[libx264 @ 0x191ce5a0] coded y,uvDC,uvAC intra: 44.4% 33.3% 10.3% inter: 7.6% 5.
    
[libx264 @ 0x191ce5a0] i16 v,h,dc,p: 68% 14%  8% 10%
    
[libx264 @ 0x191ce5a0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 21% 14% 27%  5%  7%  7%  6
    
[libx264 @ 0x191ce5a0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 28% 14% 14%  6% 10%  9%  7
    
[libx264 @ 0x191ce5a0] i8c dc,h,v,p: 67% 13% 17%  3%
    
[libx264 @ 0x191ce5a0] Weighted P-Frames: Y:1.9% UV:0.4%
    
[libx264 @ 0x191ce5a0] ref P L0: 62.2% 12.8% 10.3% 14.5%  0.2%
    
[libx264 @ 0x191ce5a0] ref B L0: 88.1%  5.5%  6.4%
    
[libx264 @ 0x191ce5a0] ref B L1: 95.7%  4.3%
    
[libx264 @ 0x191ce5a0] kb/s:1209.03

    I know there is couple errors tough, but i dont know hot to fix it. Also i would be very thankfull if someone can help reduce video size but is not main problem video weights as original avi but sill.

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