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  • MediaSPIP v0.2

    21 juin 2013, par

    MediaSPIP 0.2 est la première version de MediaSPIP stable.
    Sa date de sortie officielle est le 21 juin 2013 et est annoncée ici.
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    Comme pour la version précédente, il est nécessaire d’installer manuellement l’ensemble des dépendances logicielles sur le serveur.
    Si vous souhaitez utiliser cette archive pour une installation en mode ferme, il vous faudra également procéder à d’autres modifications (...)

  • Mise à disposition des fichiers

    14 avril 2011, par

    Par défaut, lors de son initialisation, MediaSPIP ne permet pas aux visiteurs de télécharger les fichiers qu’ils soient originaux ou le résultat de leur transformation ou encodage. Il permet uniquement de les visualiser.
    Cependant, il est possible et facile d’autoriser les visiteurs à avoir accès à ces documents et ce sous différentes formes.
    Tout cela se passe dans la page de configuration du squelette. Il vous faut aller dans l’espace d’administration du canal, et choisir dans la navigation (...)

  • MediaSPIP version 0.1 Beta

    16 avril 2011, par

    MediaSPIP 0.1 beta est la première version de MediaSPIP décrétée comme "utilisable".
    Le fichier zip ici présent contient uniquement les sources de MediaSPIP en version standalone.
    Pour avoir une installation fonctionnelle, il est nécessaire d’installer manuellement l’ensemble des dépendances logicielles sur le serveur.
    Si vous souhaitez utiliser cette archive pour une installation en mode ferme, il vous faudra également procéder à d’autres modifications (...)

Sur d’autres sites (8133)

  • Crossdevice encoding static file to stream in browser using FFMPEG (segmented h264 ?)

    20 mars 2014, par Vprnl

    I'm building a mediacenter application in NodeJS which is going pretty ok.
    (you can check it out on Github : https://github.com/jansmolders86/mediacenterjs )

    I'm using FFMPEG to transcode local (static) movies to a stream which I then send to the browser.

    At first I used h264 with Flash which worked in browsers, but I really need it to work on Android an iOS (so no Flash) and preferably working on a Raspberry Pi.

    But getting it to play on all devices is driving me absolutely insane !

    I have all these bits of the puzzle I've gathered from countless hours reading articles, tutorials and stack overflow posts, which led me to the conclusion that I need to produce the following :

    • Use video codec H264 to transcode to MP4
    • Move the moovatom '-movflags' to make a MP4 streamable
    • Segment the stream so Apple can play the stream as well.

    But getting nowhere with this. Every time I produce a series of FFMPEG settings that either don't work, or work on some devices rather than all.

    Some of my failed attempt where :

    My flash attempt -> Main problem (not running in IOS) :

        '-y','-ss 0','-b 800k','-vcodec libx264','-acodec mp3'\ 
    
    '-ab 128','-ar 44100','-bufsize 62000', '-maxrate 620k'\
    
    metaDuration,tDuration,'-f flv

    my HLS attempt -> Main problem (not running in browser) :

            '-r 15','-b:v 128k','-c:v libx264','-x264opts level=41'\
    
        '-threads 4','-s 640x480','-map 0:v','-map 0:a:0','-c:a mp3'\
    
        '-b:a 160000','-ac 2','-f hls','-hls_time 10','-hls_list_size 6'\
    
        '-hls_wrap 18','-start_number 1'

    My MP4 attempt -> Main problem (duration is shortened and the later part of the video is speeding by)

           '-y','-ss 0','-b 800k','-vcodec libx264','-acodec mp3'\
    
       '-ab 128','-ar 44100','-bufsize 62000', '-maxrate 620k'\
    
       metaDuration,tDuration,'-f mp4','-movflags','frag_keyframe+empty_moov'

    Second MP4 attempt : -> Main problem (duration is shortened and the later part of the video is speeding by)

        '-y','-vcodec libx264','-pix_fmt yuv420p','-b 1200k','-flags +loop+mv4'\
    
    '-cmp 256','-partitions +parti4x4+parti8x8+partp4x4+partp8x8+partb8x8'\
    
    '-me_method hex','-subq 7','-trellis 1','-refs 5','-bf 3','-coder 1'\
    
    '-me_range 16','-g 150','-keyint_min 25','-sc_threshold 40'\
    
    '-i_qfactor 0.71','-acodec mp3','-qmin 10','-qdiff 4','-qmax 51'\
    
    '-ab 128k','-ar 44100','-threads 2','-f mp4','-movflags','frag_keyframe+empty_moov'])

    Here is an example of the FFMPEG log running with these settings :

            file conversion error ffmpeg version N-52458-gaa96439 Copyright (c) 2000-2013 the FFmpeg developers
    
          built on Apr 24 2013 22:19:32 with gcc 4.8.0 (GCC)
    
          configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --e
    
        nable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetype --enable
    
        -libgsm --enable-libilbc --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --ena
    
        ble-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwola
    
        me --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --enabl
    
        e-libxvid --enable-zlib
    
          libavutil      52. 27.101 / 52. 27.101
    
          libavcodec     55.  6.100 / 55.  6.100
    
          libavformat    55.  3.100 / 55.  3.100
    
          libavdevice    55.  0.100 / 55.  0.100
    
          libavfilter     3. 60.101 /  3. 60.101
    
          libswscale      2.  2.100 /  2.  2.100
    
          libswresample   0. 17.102 /  0. 17.102
    
          libpostproc    52.  3.100 / 52.  3.100
    
        [avi @ 02427900] non-interleaved AVI
    
        Guessed Channel Layout for  Input Stream #0.1 : mono
    
        Input #0, avi, from 'C:/temp/the avengers.avi':
    
          Duration: 00:00:34.00, start: 0.000000, bitrate: 1433 kb/s
    
            Stream #0:0: Video: cinepak (cvid / 0x64697663), rgb24, 320x240, 15 tbr, 15 tbn, 15 tbc
    
            Stream #0:1: Audio: pcm_u8 ([1][0][0][0] / 0x0001), 22050 Hz, mono, u8, 176 kb/s
    
        Please use -b:a or -b:v, -b is ambiguous
    
        [libx264 @ 02527c60] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
    
        [libx264 @ 02527c60] profile High, level 2.0
    
        [libx264 @ 02527c60] 264 - core 130 r2274 c832fe9 - H.264/MPEG-4 AVC codec - Copyleft 2003-2013 - http://www.videolan.org/x26
    
        4.html - options: cabac=1 ref=5 deblock=1:0:0 analyse=0x3:0x133 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=2 lookahead_threads=1 sliced_th
    
        reads=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 we
    
        ightb=1 open_gop=0 weightp=2 keyint=150 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=abr mbtree=1 bitrate=120
    
        0 ratetol=1.0 qcomp=0.60 qpmin=10 qpmax=51 qpstep=4 ip_ratio=1.41 aq=1:1.00
    
        Output #0, mp4, to 'pipe:1':
    
          Metadata:
    
            encoder         : Lavf55.3.100
    
            Stream #0:0: Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 320x240, q=10-51, 1200 kb/s, 15360 tbn, 15 tbc
    
            Stream #0:1: Audio: mp3 (i[0][0][0] / 0x0069), 44100 Hz, mono, s16p, 128 kb/s
    
        Stream mapping:
    
          Stream #0:0 -> #0:0 (cinepak -> libx264)
    
          Stream #0:1 -> #0:1 (pcm_u8 -> libmp3lame)
    
        Press [q] to stop, [?] for help
    
        frame=  106 fps=0.0 q=10.0 size=       1kB time=00:00:06.94 bitrate=   1.4kbits/s
    
        frame=  150 fps=149 q=14.0 size=       1kB time=00:00:09.87 bitrate=   1.0kbits/s
    
        frame=  191 fps=126 q=16.0 size=       1kB time=00:00:12.61 bitrate=   0.8kbits/s
    
        frame=  244 fps=121 q=16.0 size=    2262kB time=00:00:16.14 bitrate=1147.6kbits/s
    
        frame=  303 fps=120 q=14.0 size=    2262kB time=00:00:20.08 bitrate= 922.2kbits/s
    
        frame=  354 fps=117 q=15.0 size=    3035kB time=00:00:23.48 bitrate=1058.6kbits/s
    
        frame=  402 fps=113 q=15.0 size=    3035kB time=00:00:26.67 bitrate= 932.1kbits/s
    
        frame=  459 fps=113 q=16.0 size=    4041kB time=00:00:30.43 bitrate=1087.7kbits/s
    
        frame=  510 fps=103 q=2686559.0 Lsize=    5755kB time=00:00:33.93 bitrate=1389.3kbits/s
    

    
        video:5211kB audio:531kB subtitle:0 global headers:0kB muxing overhead 0.235111%
    
        [libx264 @ 02527c60] frame I:6     Avg QP:10.55  size: 25921
    
        [libx264 @ 02527c60] frame P:245   Avg QP:12.15  size: 14543
    
        [libx264 @ 02527c60] frame B:259   Avg QP:15.55  size:  6242
    
        [libx264 @ 02527c60] consecutive B-frames:  6.1% 73.7% 14.7%  5.5%
    
        [libx264 @ 02527c60] mb I  I16..4: 19.9%  6.2% 73.9%
    
        [libx264 @ 02527c60] mb P  I16..4:  6.0%  0.2% 12.0%  P16..4: 35.4%  9.6% 16.3%  7.0%  5.6%    skip: 7.8%
    
        [libx264 @ 02527c60] mb B  I16..4:  0.7%  0.0%  4.3%  B16..8: 27.6% 17.2% 17.0%  direct:17.3%  skip:15.9%  L0:39.4% L1:43.2%
    
        BI:17.4%
    
        [libx264 @ 02527c60] final ratefactor: 11.41
    
        [libx264 @ 02527c60] 8x8 transform intra:1.6% inter:4.0%
    
        [libx264 @ 02527c60] coded y,uvDC,uvAC intra: 93.0% 97.0% 94.9% inter: 58.4% 58.7% 50.6%
    
        [libx264 @ 02527c60] i16 v,h,dc,p: 15% 26% 54%  5%
    
        [libx264 @ 02527c60] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 16% 17% 39%  4%  4%  3%  1%  6%  9%
    
        [libx264 @ 02527c60] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 28% 34% 21%  4%  2%  2%  2%  2%  5%
    
        [libx264 @ 02527c60] i8c dc,h,v,p: 51% 24% 19%  6%
    
        [libx264 @ 02527c60] Weighted P-Frames: Y:4.1% UV:1.2%
    
        [libx264 @ 02527c60] ref P L0: 68.2%  9.8% 11.0%  5.6%  4.6%  0.8%  0.0%
    
        [libx264 @ 02527c60] ref B L0: 87.7%  8.0%  3.9%  0.4%
    
        [libx264 @ 02527c60] ref B L1: 97.8%  2.2%
    
        [libx264 @ 02527c60] kb/s:1255.36

    Lastly this is my node code fireing up FFMPEG. (I use the module Fluent-ffmpeg : https://github.com/schaermu/node-fluent-ffmpeg )

        var proc = new ffmpeg({ source: movie, nolog: true, timeout:15000})                         
    
        .addOptions(['-r 15','-b:v 128k','-c:v libx264','-x264opts level=41','-threads 4','-s 640x480','-map 0:v','-map 0:a:0','-c:a mp3','-b:a 160000','-ac 2','-f hls','-hls_time 10','-hls_list_size 6','-hls_wrap 18','-start_number 1 stream.m3u8'])
    
        .writeToStream(res, function(retcode, error){
    
            if (!error){
    
                console.log('file has been converted succesfully',retcode .green);
    
            }else{
    
                console.log('file conversion error',error .red);
    
            }
    
        });

    So to conclude this very long and code heavy question :

    I hope this does not come off as a lazy request, but could someone show/explain to me which FFMPEG settings could/should work on all platforms (modern browsers, Android and iOS) producing a stream of a static file which I can send to a HTML5 player.

    [EDIT] what I need if a generic option isn't available

    And if this is not possible as some posts might suggest, I would love to see a set of FFMPEG settings that get's the job done properly as far as mp4 streaming is concerned. (e.g encoding a streamable mp4).

    The streaming mp4 needs the following

    • A shifted moovAtom
    • It needs to be h264

    Thanks very much for your help !

  • ffmpeg : convert audio-only flv to swf

    5 octobre 2011, par Michael Brewer-Davis

    My Flex application records audio-only FLV files using red5—I'd like to convert these to SWF files so I can embed them in other SWF files. (I could also convert to MP3 and then embed them into SWFs myself, but I'd prefer a one step solution.)

    Anyone have experience doing this ?

    What I've tried :

    The following naive ffmpeg command fails :

    > ffmpeg -i 3139747641.flv -vn movie.swf
    
FFmpeg version SVN-r21751-snapshot, Copyright (c) 2000-2010 Fabrice Bellard, et al.
    
  built on Feb 11 2010 09:15:42 with gcc 4.2.1 (SUSE Linux)
    
  configuration: --enable-gpl --enable-nonfree
    
  libavutil     50. 9. 0 / 50. 9. 0
    
  libavcodec    52.53. 0 / 52.53. 0
    
  libavformat   52.52. 0 / 52.52. 0
    
  libavdevice   52. 2. 0 / 52. 2. 0
    
  libswscale     0.10. 0 /  0.10. 0
    
[flv @ 0x8a5e3a0]Could not find codec parameters (Video: 0x0000)
    
[flv @ 0x8a5e3a0]Estimating duration from bitrate, this may be inaccurate
    
Input #0, flv, from '3139747641.flv':
    
  Metadata:
    
    audiocodecid    : -1
    
    duration        : 0
    
    videocodecid    : -1
    
    canSeekToEnd    : true
    
  Duration: 00:00:14.88, start: 0.000000, bitrate: N/A
    
    Stream #0.0: Video: 0x0000, 1k tbr, 1k tbn, 1k tbc
    
    Stream #0.1: Audio: nellymoser, 8000 Hz, mono, s16
    
Output #0, swf, to 'movie.swf':
    
    Stream #0.0: Audio: 0x0000, 8000 Hz, mono, s16, 64 kb/s
    
Stream mapping:
    
  Stream #0.1 -> #0.0
    
Encoder (codec id 86017) not found for output stream #0.0

    I've tried adding a dummy video, but this also failed :

    > ffmpeg -i dummy.mov -i 3139747641.flv movie.swf
    
    
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'dummy.mov':
    
  Metadata:
    
    major_brand     : qt  
    
    minor_version   : 512
    
    compatible_brands: qt  
    
    encoder         : Lavf52.52.0
    
    encoder-eng     : Lavf52.52.0
    
  Duration: 00:00:00.10, start: 0.000000, bitrate: 62 kb/s
    
    Stream #0.0(eng): Video: mpeg4, yuv420p, 10x10 [PAR 1:1 DAR 1:1], 1 kb/s, 10 fps, 10 tbr, 10 tbn, 10 tbc
    
[flv @ 0x8a67fa0]Could not find codec parameters (Video: 0x0000)
    
[flv @ 0x8a67fa0]Estimating duration from bitrate, this may be inaccurate
    
Input #1, flv, from '3139747641.flv':
    
  Metadata:
    
    audiocodecid    : -1
    
    duration        : 0
    
    videocodecid    : -1
    
    canSeekToEnd    : true
    
  Duration: 00:00:14.88, start: 0.000000, bitrate: N/A
    
    Stream #1.0: Video: 0x0000, 1k tbr, 1k tbn, 1k tbc
    
    Stream #1.1: Audio: nellymoser, 8000 Hz, mono, s16
    
picture size invalid (0x0)
    
Cannot allocate temp picture, check pix fmt

  • Add SRT subtitle to video with ffmpeg

    3 juillet 2015, par jAckOdE

    I use ffmpeg to encode, and add subtitle to a video by following command

    $ ffmpeg -i hifi.avi -i hifi.srt -acodec libfaac -ar 48000 -ab 128k -ac 2 -vcodec libx264 -vpre ipod640 -s 480x240 -b 256k -scodec copy  hifi.m4v -newsubtitle

    Here is the output

    ffmpeg version 0.8.git, Copyright (c) 2000-2011 the FFmpeg developers
    
  built on Aug  4 2011 11:11:39 with gcc 4.5.2
    
  configuration: --extra-cflags=-I/usr/local/include --extra-ldflags=-L/usr/local/lib --disable-shared --enable-static --enable-gpl --enable-postproc --enable-pthreads --enable-ffplay --disable-ffserver --enable-memalign-hack --enable-nonfree --enable-libfaac --arch=x86 --enable-swscale --enable-libx264 --enable-avfilter --enable-debug=3
    
  libavutil    51. 11. 1 / 51. 11. 1
    
  libavcodec   53.  9. 1 / 53.  9. 1
    
  libavformat  53.  6. 0 / 53.  6. 0
    
  libavdevice  53.  2. 0 / 53.  2. 0
    
  libavfilter   2. 27. 5 /  2. 27. 5
    
  libswscale    2.  0. 0 /  2.  0. 0
    
  libpostproc  51.  2. 0 / 51.  2. 0
    
Input #0, avi, from 'hifi.avi':
    
  Metadata:
    
    encoder         : VirtualDubMod 1.5.4.1 (build 2178/release)
    
    IAS1            : English
    
  Duration: 01:49:02.20, start: 0.000000, bitrate: 897 kb/s
    
    Stream #0.0: Video: mpeg4 (Simple Profile), yuv420p, 544x304 [SAR 1:1 DAR 34:19], 25 tbr, 25 tbn, 25 tbc
    
    Stream #0.1: Audio: mp3, 48000 Hz, stereo, s16, 32 kb/s
    
[srt @ 0152c100] Estimating duration from bitrate, this may be inaccurate
    
Input #1, srt, from 'hifi.srt':
    
  Duration: N/A, start: 56.080000, bitrate: N/A
    
    Stream #1.0: Subtitle: srt
    
File 'hifi.m4v' already exists. Overwrite ? [y/N] y
    
[buffer @ 02548920] w:544 h:304 pixfmt:yuv420p tb:1/1000000 sar:1/1 sws_param:
    
[scale @ 02558ee0] w:544 h:304 fmt:yuv420p -> w:480 h:240 fmt:yuv420p flags:0x4
    
[libx264 @ 02547f20] Default settings detected, using medium profile
    
[libx264 @ 02547f20] using SAR=1/1
    
[libx264 @ 02547f20] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.1 Cache64
    
[libx264 @ 02547f20] profile High, level 3.0
    
[libx264 @ 02547f20] 264 - core 115 - H.264/MPEG-4 AVC codec - Copyleft 2003-2011 - 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=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=0 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=abr mbtree=1 bitrate=256 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 vbv_maxrate=10000 vbv_bufsize=10000 nal_hrd=none ip_ratio=1.40 aq=1:1.00
    
Output #0, ipod, to 'hifi.m4v':
    
    Stream #0.0: Video: libx264, yuv420p, 480x240 [SAR 1:1 DAR 2:1], q=2-31, 256 kb/s, 90k tbn, 25 tbc
    
    Stream #0.1: Audio: libfaac, 48000 Hz, 2 channels, s16, 128 kb/s
    
    Stream #0.2: Subtitle: srt
    
    Stream #0.3: Subtitle: [0][0][0][0] / 0x0000, 64 kb/s
    
Stream mapping:
    
  Stream #0.0 -> #0.0
    
  Stream #0.1 -> #0.1
    
  Stream #1.0 -> #0.2
    
  Stream #1.0 -> #0.3
    
Encoder (codec id 0) not found for output stream #0.3

    can anyone tell what wrong with my command ??

    thanks,

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