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Médias (91)

Autres articles (43)

  • Multilang : améliorer l’interface pour les blocs multilingues

    18 février 2011, par

    Multilang est un plugin supplémentaire qui n’est pas activé par défaut lors de l’initialisation de MediaSPIP.
    Après son activation, une préconfiguration est mise en place automatiquement par MediaSPIP init permettant à la nouvelle fonctionnalité d’être automatiquement opérationnelle. Il n’est donc pas obligatoire de passer par une étape de configuration pour cela.

  • Librairies et logiciels spécifiques aux médias

    10 décembre 2010, par

    Pour un fonctionnement correct et optimal, plusieurs choses sont à prendre en considération.
    Il est important, après avoir installé apache2, mysql et php5, d’installer d’autres logiciels nécessaires dont les installations sont décrites dans les liens afférants. Un ensemble de librairies multimedias (x264, libtheora, libvpx) utilisées pour l’encodage et le décodage des vidéos et sons afin de supporter le plus grand nombre de fichiers possibles. Cf. : ce tutoriel ; FFMpeg avec le maximum de décodeurs et (...)

  • Other interesting software

    13 avril 2011, par

    We don’t claim to be the only ones doing what we do ... and especially not to assert claims to be the best either ... What we do, we just try to do it well and getting better ...
    The following list represents softwares that tend to be more or less as MediaSPIP or that MediaSPIP tries more or less to do the same, whatever ...
    We don’t know them, we didn’t try them, but you can take a peek.
    Videopress
    Website : http://videopress.com/
    License : GNU/GPL v2
    Source code : (...)

Sur d’autres sites (3315)

  • Android get video rotation from metatags

    13 novembre 2013, par vicmns

    currently I am using the Android MediaMetadataRetriever class in order to get the video rotation tag from a MP4 file, using the MediaMetadataRetriever.METADATA_KEY_VIDEO_ROTATION tag. The main drawback of this, is that is only compatible with API level 17 and up, and the minimum supported API level desired for the application is 14.

    Is there any work around for this, I tried using the ffmpeg library that used in the project, but I did not find an option to get this tag from the video.

    Thanks in advance.

  • Re-creating/matching ffmpeg settings

    8 novembre 2013, par Pete Helgren

    I have an MP4 file that plays pretty much on every browser using either HTML5 or flash fallback (using mediaelement.js). I also have a series of additional video files that I would like to have "match" the one file that does play consistently but I haven't been able to match the ffmpeg settings so it produces a like file. I used ffprobe and got the following results on the file that plays successfully :

    ffprobe version N-53616-g7a2edcf Copyright (c) 2007-2013 the FFmpeg developers
    
built on May 29 2013 01:21:08 with gcc 4.7.3 (GCC)
    
configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av
    
isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab
    
le-iconv --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetyp
    
e --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --ena
    
ble-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-l
    
ibopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libsp
    
eex --enable-libtheora --enable-libtwolame --enable-libvo-aacenc --enable-libvo-
    
amrwbenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --
    
enable-libxvid --enable-zlib
    
 libavutil      52. 34.100 / 52. 34.100
    
 libavcodec     55. 12.102 / 55. 12.102
    
 libavformat    55.  7.100 / 55.  7.100
    
 libavdevice    55.  1.101 / 55.  1.101
    
 libavfilter     3. 72.100 /  3. 72.100
    
 libswscale      2.  3.100 /  2.  3.100
    
 libswresample   0. 17.102 /  0. 17.102
    
 libpostproc    52.  3.100 / 52.  3.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'MyFile.mp4':
    
 Metadata:
    
  major_brand     : M4V
    
  minor_version   : 1
    
  compatible_brands: M4V mp42isom
    
  creation_time   : 2013-05-29 16:08:29
    
Duration: 00:01:58.10, start: 0.000000, bitrate: 1155 kb/s
    
 Stream #0:0(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 854x480 [SAR 1:1 DAR 427:240], 995 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 tbc
    
Metadata:
    
  creation_time   : 2013-05-29 16:08:29
    
  handler_name    : Mainconcept MP4 Video Media Handler
    
Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 157 kb/s
    
Metadata:
    
  creation_time   : 2013-05-29 16:08:29
    
  handler_name    : Mainconcept MP4 Sound Media Handler

    Following a few guides I found online, I am using the following ffmpeg settings :

    ffmpeg -i {input file name} -y -acodec aac -ac 2 -strict experimental -ab 64k -s 320x240 -vcodec libx264 -pix_fmt yuv420p -preset slow -profile:v baseline -level 30 -maxrate 300k -bufsize 600k -b:v 300k -f mp4 -threads 0 -movflags +faststart {output file name}

    That command produces the following output :

    ffmpeg -i "testin.mp4" -y -acodec aac -ac 2 -strict experimental -ab 64k -s 320x240 -vcodec libx264 -pix_fmt yuv420p -preset slow-profile:v baseline -level 30 -maxrate 300k -bufsize 600k -b:v 300k -f mp4 -threads 0 -movflags +faststart testout.mp4
    

    
ffmpeg version N-53616-g7a2edcf Copyright (c) 2000-2013 the FFmpeg developers  built on May 29 2013 01:21:08 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-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-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib
    
  libavutil      52. 34.100 / 52. 34.100
    
  libavcodec     55. 12.102 / 55. 12.102
    
  libavformat    55.  7.100 / 55.  7.100
    
  libavdevice    55.  1.101 / 55.  1.101
    
  libavfilter     3. 72.100 /  3. 72.100
    
  libswscale      2.  3.100 /  2.  3.100
    
  libswresample   0. 17.102 /  0. 17.102
    
  libpostproc    52.  3.100 / 52.  3.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'testin.mp4':
    
  Metadata:
    
    major_brand     : mp42
    
    minor_version   : 0
    
    compatible_brands: mp42mp41
    
    creation_time   : 2013-10-01 17:11:42
    
  Duration: 00:04:33.75, start: 0.000000, bitrate: 725 kb/s
    
    Stream #0:0(eng): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p, 320x240 [SAR 1:1 DAR 4:3], 596 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 tbc
    
    Metadata:
    
      creation_time   : 2013-10-01 17:11:42
    
      handler_name    : ?Mainconcept Video Media Handler
    
    Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 125 kb/s
    
    Metadata:
    
      creation_time   : 2013-10-01 17:11:42
    
      handler_name    : #Mainconcept MP4 Sound Media Handler
    
[libx264 @ 0000000000358160] using SAR=1/1
    
[libx264 @ 0000000000358160] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2AVX
    
[libx264 @ 0000000000358160] profile Constrained Baseline, level 3.0
    
[libx264 @ 0000000000358160] 264 - core 133 r2334 a3ac64b - H.264/MPEG-4 AVC codec - Copyleft 2003-2013 - http://www.videolan.org/x264.html - options: cabac=0 ref=5 deblock=1:0:0 analyse=0x1:0x111 me=umh subme=8 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=0 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=0 weightp=0 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=50 rc=cbr mbtree=1 bitrate=300 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 vbv_maxrate=300 vbv_bufsize=600 nal_hrd=none ip_ratio=1.40 aq=1:1.00
    

    
Output #0, mp4, to 'testout.mp4':
    
  Metadata:
    
    major_brand     : mp42
    
    minor_version   : 0
    
    compatible_brands: mp42mp41
    
    encoder         : Lavf55.7.100
    
   Stream #0:0(eng): Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 320x240 [SAR 1:1 DAR 4:3], q=-1--1, 300 kb/s, 30k tbn, 29.97 tbc
    
    Metadata:
    
      creation_time   : 2013-10-01 17:11:42
    
      handler_name    : ?Mainconcept Video Media Handler
    
    Stream #0:1(eng): Audio: aac ([64][0][0][0] / 0x0040), 48000 Hz, stereo, fltp, 64 kb/s
    
    Metadata:
    
      creation_time   : 2013-10-01 17:11:42
    
      handler_name    : #Mainconcept MP4 Sound Media Handler
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (h264 -> libx264)
    
  Stream #0:1 -> #0:1 (aac -> aac)
    
Press [q] to stop, [?] for help
    
frame=  283 fps=0.0 q=21.0 size=     329kB time=00:00:09.30 bitrate= 289.9kbits/
    
frame=  565 fps=564 q=20.0 size=     760kB time=00:00:18.64 bitrate= 333.7kbits/
    
frame=  846 fps=564 q=21.0 size=    1179kB time=00:00:28.20 bitrate= 342.5kbits/
    
frame= 1123 fps=561 q=22.0 size=    1603kB time=00:00:37.33 bitrate= 351.7kbits/
    
frame= 1376 fps=550 q=25.0 size=    1986kB time=00:00:45.69 bitrate= 356.1kbits/
    
frame= 1651 fps=550 q=22.0 size=    2377kB time=00:00:55.01 bitrate= 353.9kbits/
    
frame= 1914 fps=546 q=24.0 size=    2776kB time=00:01:03.70 bitrate= 357.0kbits/
    
frame= 2181 fps=545 q=24.0 size=    3163kB time=00:01:12.70 bitrate= 356.4kbits/
    
frame= 2443 fps=543 q=24.0 size=    3566kB time=00:01:21.38 bitrate= 358.9kbits/
    
frame= 2702 fps=540 q=24.0 size=    3939kB time=00:01:30.04 bitrate= 358.4kbits/
    
frame= 2965 fps=539 q=24.0 size=    4338kB time=00:01:38.73 bitrate= 359.9kbits/
    
frame= 3236 fps=539 q=23.0 size=    4731kB time=00:01:48.03 bitrate= 358.7kbits/
    
frame= 3505 fps=539 q=24.0 size=    5130kB time=00:01:56.75 bitrate= 360.0kbits/
    
frame= 3765 fps=537 q=26.0 size=    5521kB time=00:02:05.41 bitrate= 360.6kbits/
    
frame= 4036 fps=538 q=24.0 size=    5905kB time=00:02:14.59 bitrate= 359.4kbits/
    
frame= 4326 fps=540 q=24.0 size=    6343kB time=00:02:24.10 bitrate= 360.6kbits/
    
frame= 4606 fps=542 q=27.0 size=    6783kB time=00:02:33.49 bitrate= 362.0kbits/
    
frame= 4886 fps=543 q=24.0 size=    7168kB time=00:02:42.81 bitrate= 360.7kbits/
    
frame= 5166 fps=544 q=27.0 size=    7616kB time=00:02:52.13 bitrate= 362.5kbits/
    
frame= 5456 fps=545 q=24.0 size=    8020kB time=00:03:01.84 bitrate= 361.3kbits/
    
frame= 5736 fps=546 q=27.0 size=    8458kB time=00:03:11.18 bitrate= 362.4kbits/
    
frame= 6001 fps=545 q=30.0 size=    8849kB time=00:03:20.17 bitrate= 362.1kbits/
    
frame= 6264 fps=544 q=27.0 size=    9233kB time=00:03:28.85 bitrate= 362.2kbits/
    
frame= 6526 fps=544 q=26.0 size=    9611kB time=00:03:37.55 bitrate= 361.9kbits/
    
frame= 6793 fps=543 q=26.0 size=   10006kB time=00:03:46.51 bitrate= 361.9kbits/
    
frame= 7076 fps=544 q=24.0 size=   10410kB time=00:03:55.86 bitrate= 361.6kbits/
    
frame= 7355 fps=544 q=25.0 size=   10835kB time=00:04:05.20 bitrate= 362.0kbits/
    
frame= 7615 fps=543 q=27.0 size=   11236kB time=00:04:13.88 bitrate= 362.5kbits/
    
frame= 7883 fps=543 q=25.0 size=   11625kB time=00:04:22.89 bitrate= 362.3kbits/
    
frame= 8166 fps=544 q=21.0 size=   12040kB time=00:04:32.31 bitrate= 362.2kbits/
    
Starting second pass: moving header on top of the file
    
frame= 8203 fps=540 q=-1.0 Lsize=   12417kB time=00:04:33.74 bitrate= 371.6kbits/s
    
video:10035kB audio:2150kB subtitle:0 global headers:0kB muxing overhead 1.901929%
    
[libx264 @ 0000000000358160] frame I:41    Avg QP:14.13  size: 18349
    
[libx264 @ 0000000000358160] frame P:8162  Avg QP:17.24  size:  1167
    
[libx264 @ 0000000000358160] mb I  I16..4: 24.8%  0.0% 75.2%
    
[libx264 @ 0000000000358160] mb P  I16..4:  0.4%  0.0%  0.3%  P16..4: 29.1%  6.4%  3.2%  0.0%  0.0%    skip:60.7%
    
[libx264 @ 0000000000358160] coded y,uvDC,uvAC intra: 66.1% 74.1% 53.1% inter: 15.3% 20.2% 4.0%
    
[libx264 @ 0000000000358160] i16 v,h,dc,p: 23% 21% 11% 45%
    
[libx264 @ 0000000000358160] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 21% 25% 14%  6%  7% 7%  7%  6%  7%
    
[libx264 @ 0000000000358160] i8c dc,h,v,p: 43% 28% 19% 10%
    
[libx264 @ 0000000000358160] ref P L0: 78.4% 12.6%  4.9%  2.4%  1.7%
    
[libx264 @ 0000000000358160] kb/s:300.33

    The one problem with the incantation above is that on iPad's and iPhones and some Android tablets all you hear is the audio with no video. But the file listed above (contents of the ffprobe) does not have that problem, it WILL play on an iPad, iPhone, Android tablet. I researched causes for "audio, no video" and the recommendations were all over the deck. But, the file listed in the ffprobe DOES play, so if I can match those settings described by the ffprobe for all of the other videos, they should play consistently as well. My challenge is to match the ffprobe settings using ffmpeg and there doesn't seem to be a 1 to 1 match between what I see in ffprobe and the corresponding settings in ffmpeg (a nice utility would be to have ffprobe output the ffmpeg settings that could be used to create a file of similar format).

    I walked through the ffprobe documentation but couldn't find anything that would produce a format that could be used as input to ffmpeg. Suggestions ?

  • Retired Version 2.14

    24 octobre 2013, par Grandt
    Retired Version 2.14

    Version 2.5x is now the new main branch.

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