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  • 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

  • Supporting all media types

    13 avril 2011, par

    Unlike most software and media-sharing platforms, MediaSPIP aims to manage as many different media types as possible. The following are just a few examples from an ever-expanding list of supported formats : images : png, gif, jpg, bmp and more audio : MP3, Ogg, Wav and more video : AVI, MP4, OGV, mpg, mov, wmv and more text, code and other data : OpenOffice, Microsoft Office (Word, PowerPoint, Excel), web (html, CSS), LaTeX, Google Earth and (...)

  • Encoding and processing into web-friendly formats

    13 avril 2011, par

    MediaSPIP automatically converts uploaded files to internet-compatible formats.
    Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
    Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
    Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
    All uploaded files are stored online in their original format, so you can (...)

Sur d’autres sites (4944)

  • Convert video with ffmpeg to have the same quality

    14 mai 2019, par zlon

    I want to make some present for my grandma. And prepare some video. Unfortunately here video player is old and could not read some file formats. She is not at home now, so I don’t know which player she has. But I have a file which is OK for here system :

    File which is in a correct format :

    General
    
Complete name                            : let.avi
    
Format                                   : AVI
    
Format/Info                              : Audio Video Interleave
    
File size                                : 688 MiB
    
Duration                                 : 1 h 35 min
    
Overall bit rate                         : 1 002 kb/s
    
Writing application                      : VirtualDubMod 1.4.13
    
Writing library                          : VirtualDub build 14328/release
    
FileExtension_Invalid                    : avi
    

    
Video
    
ID                                       : 0
    
Format                                   : MPEG-4 Visual
    
Format profile                           : Simple@L3
    
Format settings, BVOP                    : No
    
Format settings, QPel                    : No
    
Format settings, GMC                     : No warppoints
    
Format settings, Matrix                  : Default (H.263)
    
Codec ID                                 : XVID
    
Codec ID/Hint                            : XviD
    
Duration                                 : 1 h 35 min
    
Bit rate                                 : 800 kb/s
    
Width                                    : 544 pixels
    
Height                                   : 416 pixels
    
Display aspect ratio                     : 4:3
    
Frame rate                               : 25.000 FPS
    
Color space                              : YUV
    
Chroma subsampling                       : 4:2:0
    
Bit depth                                : 8 bits
    
Scan type                                : Progressive
    
Compression mode                         : Lossy
    
Bits/(Pixel*Frame)                       : 0.141
    
Stream size                              : 549 MiB (80%)
    
Writing library                          : XviD 0.0.09 (UTC 2003-03-25)

    I have the following file, which here system could not read :

    File in the incorrect format :

    General
    
Complete name                            : amf.avi
    
Format                                   : AVI
    
Format/Info                              : Audio Video Interleave
    
Overall bit rate                         : 2 167 kb/s
    

    
Video
    
ID                                       : 0
    
Format                                   : MPEG-4 Visual
    
Format profile                           : Advanced Simple@L5
    
Format settings                          : BVOP1
    
Format settings, BVOP                    : 1
    
Format settings, QPel                    : No
    
Format settings, GMC                     : No warppoints
    
Format settings, Matrix                  : Default (MPEG)
    
Codec ID                                 : DX50
    
Codec ID/Hint                            : DivX 5
    
Bit rate                                 : 1 710 kb/s
    
Width                                    : 720 pixels
    
Height                                   : 528 pixels
    
Display aspect ratio                     : 4:3
    
Frame rate                               : 23.976 (24000/1001) FPS
    
Color space                              : YUV
    
Chroma subsampling                       : 4:2:0
    
Bit depth                                : 8 bits
    
Scan type                                : Progressive
    
Compression mode                         : Lossy
    
Bits/(Pixel*Frame)                       : 0.188
    
Stream size                              : 1.15 GiB (79%)
    
Writing library                          : XviD 64

    Could you help me to convert the second file to a format of the first ? (It would be nice if the output would be of the similar quality)

    I have Ubuntu, and I think ffmpeg should be able to do it.

    CROSS POSTED FROM : SE Video production.

  • tag refuses to play mp4 video

    5 janvier 2015, par MightyPork

    I have a video I want to embed using the html5 video tag :

    I’ve converted it using ffmpeg :

    ffmpeg -i P6135199.MOV -vcodec libx264 -acodec aac helios.mp4

    FFMPEG output :

    [libx264 @ 0x22ac340] using cpu capabilities : MMX2 SSE2Fast SSSE3 SSE4.2
[libx264 @ 0x22ac340] profile High 4:2:2, level 1.2, 4:2:2 8-bit
[libx264 @ 0x22ac340] 264 - core 142 r2455 021c0dc - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - 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=6 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=15 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 ’helios.mp4’ :
  Metadata :
    comment-eng : OLYMPUS DIGITAL CAMERA                           
    comment : OLYMPUS DIGITAL CAMERA                           
    encoder : Lavf56.15.102
    Stream #0:0(eng) : Video : h264 (libx264) ([33][0][0][0] / 0x0021), yuvj422p(pc), 320x240, q=-1—1, 15 fps, 15360 tbn, 15 tbc (default)
    Metadata :
      creation_time : 2008-06-13 10:47:16
      encoder : Lavc56.13.100 libx264
Stream mapping :
  Stream #0:0 -> #0:0 (mjpeg (native) -> h264 (libx264))
Press [q] to stop, [?] for help
frame=  240 fps=124 q=-1.0 Lsize=     906kB time=00:00:15.86 bitrate= 467.7kbits/s    
video:902kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead : 0.409100%
[libx264 @ 0x22ac340] frame I:1     Avg QP:23.71  size :  7960
[libx264 @ 0x22ac340] frame P:123   Avg QP:23.85  size :  5255
[libx264 @ 0x22ac340] frame B:116   Avg QP:25.41  size :  2317
[libx264 @ 0x22ac340] consecutive B-frames :  3.3% 96.7%  0.0%  0.0%
[libx264 @ 0x22ac340] mb I  I16..4 : 15.7% 69.0% 15.3%
[libx264 @ 0x22ac340] mb P  I16..4 :  2.2% 13.4%  0.8%  P16..4 : 43.8% 23.1% 14.0%  0.0%  0.0%    skip : 2.8%
[libx264 @ 0x22ac340] mb B  I16..4 :  0.3%  1.3%  0.1%  B16..8 : 42.4%  9.9%  3.0%  direct:12.2%  skip:30.9%  L0:37.2% L1:38.2% BI:24.5%
[libx264 @ 0x22ac340] 8x8 transform intra:80.8% inter:71.9%
[libx264 @ 0x22ac340] coded y,uvDC,uvAC intra : 76.7% 96.8% 49.7% inter : 37.8% 60.9% 5.1%
[libx264 @ 0x22ac340] i16 v,h,dc,p : 39%  4%  8% 49%
[libx264 @ 0x22ac340] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu : 15% 14% 39%  6%  3%  4%  3%  6% 12%
[libx264 @ 0x22ac340] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu : 25% 11% 18%  8%  7%  7%  8%  8%  8%
[libx264 @ 0x22ac340] i8c dc,h,v,p : 63%  7% 20% 10%
[libx264 @ 0x22ac340] Weighted P-Frames : Y:5.7% UV:0.8%
[libx264 @ 0x22ac340] ref P L0 : 51.4% 18.3% 20.6%  9.3%  0.4%
[libx264 @ 0x22ac340] ref B L0 : 80.8% 19.2%
[libx264 @ 0x22ac340] kb/s:461.52

    And I try to embed it as follows :

    <video src="helios.mp4" controls="controls">Get a better browser!</video>

    However, Chrome doesn’t play the video, only offers to download it (same as it did before I converted the video). Firefox has the same problem.

    I’ve tested and other mp4 files (from my phone) play just fine.

    What’s the problem ? Did I convert it wrong ?

  • FFmpeg drops last frame with filter fps/framerate

    27 juin 2019, par Dzmitry

    When I convert the same mp4 video (mime:video/mp4, fps:25) with video filter fps with value 25 ffmpeg drops one (last ?) frame everytime.
    This is log :

    [h264 @ 0x7fc89ceb3cc0] Reinit context to 960x544, pix_fmt: yuv420p
    
[h264 @ 0x7fc89cfb59c0] Reinit context to 960x544, pix_fmt: yuv420p
    
[libx264 @ 0x7fc89cf932c0] using cpu capabilities: MMX2 SSE2Fast LZCNT SSSE3 SSE4.2 AVX
    
[libx264 @ 0x7fc89cf932c0] profile Constrained Baseline, level 5.1
    
[libx264 @ 0x7fc89cf932c0] 264 - core 152 r2854 e9a5903 - H.264/MPEG-4 AVC codec - Copyleft 2003-2017 - http://www.videolan.org/x264.html - options: cabac=0 ref=1 deblock=1:0:0 analyse=0x1:0x111 me=hex subme=2 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=8 lookahead_threads=8 sliced_threads=1 slices=8 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=12 keyint_min=1 scenecut=40 intra_refresh=0 rc=crf mbtree=0 crf=23.0 qcomp=1.00 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
    
[in @ 0x7fc89eeeda40] tb:1/48000 samplefmt:fltp samplerate:48000 chlayout:0x3
    
[in @ 0x7fc89eeeda40] TB:0.000021 FRAME_RATE:nan SAMPLE_RATE:48000.000000
    
[Parsed_aresample_1 @ 0x7fc89eeee9c0] ch:2 chl:stereo fmt:fltp r:48000Hz -> ch:2 chl:stereo fmt:fltp r:48000Hz
    
[Parsed_asetnsamples_2 @ 0x7fc89eeede40] tb:0.000021 sample_rate:48000.000000 nb_channels:2.000000
    
[Parsed_volume_3 @ 0x7fc89ef049c0] n:nan t:nan pts:nan precision:float volume:1.071519 volume_dB:0.600000
    
[in @ 0x7fc89ef05d00] w:960 h:540 pixfmt:yuv420p tb:1/12800 fr:0/1 sar:0/1 sws_param:
    
[Parsed_fps_0 @ 0x7fc89ef06a00] fps=25/1
    
[Parsed_scale_2 @ 0x7fc89ef07780] w:960 h:540 flags:'bilinear' interl:0
    
[Parsed_setsar_1 @ 0x7fc89ef06cc0] w:960 h:540 sar:0/1 dar:16/9 -> sar:1/1 dar:16/9
    
[Parsed_scale_2 @ 0x7fc89ef07780] w:960 h:540 fmt:yuv420p sar:1/1 -> w:960 h:540 fmt:yuv420p sar:1/1 flags:0x2
    
[h264 @ 0x7fc89d164c40] Reinit context to 960x544, pix_fmt: yuv420p
    
[Parsed_fps_0 @ 0x7fc89ef06a00] Set first pts to 0
    

    
[Parsed_fps_0 @ 0x7fc89ef06a00] 609 frames in, 608 frames out; 1 frames dropped, 0 frames duplicated.
    
[libx264 @ 0x7fc89cf932c0] frame I:61    Avg QP:18.67  size: 44710
    
[libx264 @ 0x7fc89cf932c0] frame P:547   Avg QP:21.44  size: 19455
    
[libx264 @ 0x7fc89cf932c0] mb I  I16..4:  4.6%  0.0% 95.4%
    
[libx264 @ 0x7fc89cf932c0] mb P  I16..4:  3.9%  0.0%  7.9%  P16..4: 43.2% 27.9% 12.9%  0.0%  0.0%    skip: 4.3%
    
[libx264 @ 0x7fc89cf932c0] coded y,uvDC,uvAC intra: 77.9% 90.3% 36.3% inter: 36.2% 46.0% 2.6%
    
[libx264 @ 0x7fc89cf932c0] i16 v,h,dc,p: 23% 35% 28% 14%
    
[libx264 @ 0x7fc89cf932c0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 24% 23% 17%  6%  7%  6%  7%  5%  5%
    
[libx264 @ 0x7fc89cf932c0] i8c dc,h,v,p: 53% 20% 19%  8%
    
[libx264 @ 0x7fc89cf932c0] kb/s:4397.76
    
[aac @ 0x7fc89edc6c00] Qavg: 642.230

    I’ve already tried to modify filter with parameters round=up/near/down:eof_action=pass/round

    ffmpeg -i input.mp4 -c:v libx264 -filter:v fps=fps=25 output.mp4

    I expect to get converted videos without dropped frames.

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