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Autres articles (9)

  • D’autres logiciels intéressants

    12 avril 2011, par

    On ne revendique pas d’être les seuls à faire ce que l’on fait ... et on ne revendique surtout pas d’être les meilleurs non plus ... Ce que l’on fait, on essaie juste de le faire bien, et de mieux en mieux...
    La liste suivante correspond à des logiciels qui tendent peu ou prou à faire comme MediaSPIP ou que MediaSPIP tente peu ou prou à faire pareil, peu importe ...
    On ne les connais pas, on ne les a pas essayé, mais vous pouvez peut être y jeter un coup d’oeil.
    Videopress
    Site Internet : (...)

  • Sélection de projets utilisant MediaSPIP

    29 avril 2011, par

    Les exemples cités ci-dessous sont des éléments représentatifs d’usages spécifiques de MediaSPIP pour certains projets.
    Vous pensez avoir un site "remarquable" réalisé avec MediaSPIP ? Faites le nous savoir ici.
    Ferme MediaSPIP @ Infini
    L’Association Infini développe des activités d’accueil, de point d’accès internet, de formation, de conduite de projets innovants dans le domaine des Technologies de l’Information et de la Communication, et l’hébergement de sites. Elle joue en la matière un rôle unique (...)

  • 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 (5437)

  • capture my webcam and encode to mp4 with ffmpeg, but the x264 works bad

    17 septembre 2015, par zhangxm1991

    here is my version :
    ffmpeg version : 2.3.3
    libx264 version:142.x

    I wat to capture my video and use ffmpeg and x264 to a mp4 file. the solution is 320x240.
    But i found that the video file is so big. Then i found that the P frame and B frame is very big, even nearly equal to the I frame.I do not know why.

    here is my code :

        c->codec_id = codec_id;
    
    c->bit_rate = 400000;
    
    c->width    = 320;
    
    c->height   = 240;
    
    c->time_base.den = 10;
    
    c->time_base.num = 1;
    
    c->pix_fmt       = AV_PIX_FMT_YUV420P;

    Here is my program output :

    [libx264 @ 0xb6200fc0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX 
    

    
[libx264 @ 0xb6200fc0] profile High, level 1.3
    

    
[libx264 @ 0xb6200fc0] 264 - core 142 - 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=10 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=abr mbtree=1 bitrate=400 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
    

    
Output #0, mp4, to '/home/2014_09_12/0002b6429579/5/2014_09_12_18_39_12_600.mp4':
    

    
    Stream #0:0: Video: h264 (libx264), yuv420p, 320x240, q=-1--1, 400 kb/s, 10 tbc
    

    
    Stream #0:1: Audio: aac, 8000 Hz, mono, fltp, 32 kb/s
    

    
[mp4 @ 0xb62005e0] Using AVStream.codec.time_base as a timebase hint to the muxer is deprecated. Set AVStream.time_base instead.
    

    
[mp4 @ 0xb62005e0] Using AVStream.codec.time_base as a timebase hint to the muxer is deprecated. Set AVStream.time_base instead.
    

    
[mp4 @ 0xb62005e0] Encoder did not produce proper pts, making some up.
    

    
[libx264 @ 0xb6200fc0] frame I:3     Avg QP: 2.79  size: 72996
    

    
[libx264 @ 0xb6200fc0] frame P:383   Avg QP: 0.14  size: 54075
    

    
[libx264 @ 0xb6200fc0] frame B:216   Avg QP: 1.95  size: 64784
    

    
[libx264 @ 0xb6200fc0] consecutive B-frames: 30.1% 63.2%  6.0%  0.7%
    

    
[libx264 @ 0xb6200fc0] mb I  I16..4: 16.1% 12.7% 71.2%
    

    
[libx264 @ 0xb6200fc0] mb P  I16..4:  3.5%  5.1% 15.9%  P16..4: 20.3% 22.8% 14.0%  0.0%  0.0%    skip:18.3%
    

    
[libx264 @ 0xb6200fc0] mb B  I16..4:  0.4%  2.5%  8.2%  B16..8: 32.6% 19.8% 13.5%  
    
direct:22.2%  skip: 0.8%  L0:25.5% L1:12.8% BI:61.6%
    

    
[libx264 @ 0xb6200fc0] final ratefactor: -32.89
    

    
[libx264 @ 0xb6200fc0] 8x8 transform intra:21.0% inter:29.6%
    

    
[libx264 @ 0xb6200fc0] coded y,uvDC,uvAC intra: 100.0% 100.0% 100.0% inter: 83.3% 80.9% 80.9%
    

    
[libx264 @ 0xb6200fc0] i16 v,h,dc,p:  5%  7% 42% 46%
    

    
[libx264 @ 0xb6200fc0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 14% 12% 23%  8%  6%  6%  8%  9% 14%
    

    
[libx264 @ 0xb6200fc0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 12% 11% 19% 10%  8%  8% 10% 10% 12%
    

    
[libx264 @ 0xb6200fc0] i8c dc,h,v,p: 78%  3%  4% 15%
    

    
[libx264 @ 0xb6200fc0] Weighted P-Frames: Y:0.5% UV:0.3%
    

    
[libx264 @ 0xb6200fc0] ref P L0: 43.4% 14.6% 19.0% 22.9%  0.1%
    

    
[libx264 @ 0xb6200fc0] ref B L0: 63.3% 35.7%  1.1%
    

    
[libx264 @ 0xb6200fc0] ref B L1: 97.0%  3.0%
    

    
[libx264 @ 0xb6200fc0] kb/s:4.53
    

    
[aac @ 0xb6201ba0] 2 frames left in the queue on closing

  • Stream webcam using ffmpeg/avconv to RTMP libx264 doesn't work

    15 mars 2016, par Erez Posner

    i have been trying to stream my webcam to Ustream using RTMP.

    using the standard command works great :

    "avconv -f video4linux2 -r 25 -s 320x240 -i /dev/video0 -f flv rtmp ://host/pass"

    but i encoutner a 15 seconds latency !
    therefore i decided to compress the video using libx264.
    i downloaded it and confirmed it is installed properly.
    but when running this command :

    "avconv -f video4linux2 -r 25 -s 320x240 -i /dev/video0 -c:v libx264 -pix_fmt yuv420p-f flv rtmp ://host/pass"

    on ffmpeg i get "Illegal instruction"
    and under avconv it starts to stream but nothing is shown in Ustream channel.

    output from avconv command

    avconv version 9.14-6:9.14-1rpi1rpi1, Copyright (c) 2000-2014 the
    
Libav developers
    
built on Jul 22 2014 15:08:12 with gcc 4.6 (Debian 4.6.3-14+rpi1)
    
[video4linux2 @ 0x709740] The driver changed the time per frame from 1/5 to 1/30
    
    [video4linux2 @ 0x709740] Estimating duration from bitrate, this may
    
    be inaccurate
    
    Input #0, video4linux2, from '/dev/video0':
    
      Duration: N/A, start: 5069.991764, bitrate: 36864 kb/s
    
        Stream #0.0: Video: rawvideo, yuyv422, 320x240, 36864 kb/s, 1000k    tbn, 30 tbc
    
    [libx264 @ 0x70a9e0] using cpu capabilities: none!
    
    [libx264 @ 0x70a9e0] profile High, level 1.2
    
    [libx264 @ 0x70a9e0] 264 - core 130 r2282 1db4621 - 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=1 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=5 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=1.25
    
    aq=1:1.00
    
    Output #0, flv, to
    
    'rtmp:host/pass:
    
      Metadata:
    
        encoder         : Lavf54.20.4
    
        Stream #0.0: Video: libx264, yuv420p, 320x240, q=-1--1, 1k tbn, 5 tbc
    
    Stream mapping:
    
      Stream #0:0 -> #0:0 (rawvideo -> libx264)
    
    Press ctrl-c to stop encoding
    
    frame=   44 fps=  3 q=23.0 size=      26kB time=0.20
    
    bitrate=1071.8kbits/s    bits/s

    what could be the problem ?
    thank you in advanced

  • Stream from MP4 file over RTSP with ffserver

    25 octobre 2019, par sirlion

    I’m trying to stream a mp4 file over RTSP using ffserver with no luck so far. I just want to stream directly from the file, without feeding from ffmpeg (no transcoding involved). But I’ve made it work with mpg video.

    Here is my ffserver config file :

    Port 8090
    
BindAddress 0.0.0.0
    
MaxHTTPConnections 2000
    
MaxClients 1000
    
MaxBandwidth 500000
    
CustomLog -
    
NoDaemon
    

    
RTSPPort 7654
    
RTSPBindAddress 0.0.0.0
    

    
<stream>
    
    Format rtp
    
    File "/home/g/video_streaming/sample3-mpeg2.mpg"
    
</stream>
    
<stream>
    
    Format rtp
    
    File "/home/g/video.mp4"
    
</stream>

    When I launch ffserver, everything seems fine based on the log output :

    $ ./dev/ffmpeg/ffserver -f ffserver-sample.conf
    
ffserver version N-45673-gd0c27e8 Copyright (c) 2000-2012 the FFmpeg developers
    
  built on Oct 18 2012 10:36:52 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)
    
  configuration:
    
  libavutil      51. 76.100 / 51. 76.100
    
  libavcodec     54. 66.100 / 54. 66.100
    
  libavformat    54. 33.100 / 54. 33.100
    
  libavdevice    54.  3.100 / 54.  3.100
    
  libavfilter     3. 19.103 /  3. 19.103
    
  libswscale      2.  1.101 /  2.  1.101
    
  libswresample   0. 16.100 /  0. 16.100
    
Thu Oct 18 11:54:22 2012 Opening file '/home/g/video.mp4'
    
Thu Oct 18 11:54:22 2012 Opening file '/home/g/video.mp4'
    
Thu Oct 18 11:54:23 2012 Opening file '/home/g/video_streaming/sample3-mpeg2.mpg'
    
Thu Oct 18 11:54:23 2012 [mpeg @ 0x1dae3c0]max_analyze_duration 5000000 reached at 5005000
    
Thu Oct 18 11:54:23 2012 Opening file '/home/g/video_streaming/sample3-mpeg2.mpg'
    
Thu Oct 18 11:54:23 2012 [mpeg @ 0x1dae3c0]max_analyze_duration 5000000 reached at 5005000
    
Thu Oct 18 11:54:23 2012 FFserver started.

    Finally, if I run ffplay in order to test the server, everything works fine for the mpg file, but not for the mp4 :

    $ ffplay rtsp://192.168.1.99:7654/test2-rtsp
    
ffplay version N-45656-g916352f Copyright (c) 2003-2012 the FFmpeg developers
    
  built on Oct 17 2012 16:14:14 with gcc 4.4.5 (Ubuntu/Linaro 4.4.4-14ubuntu5.1)
    
  configuration:
    
  libavutil      51. 76.100 / 51. 76.100
    
  libavcodec     54. 66.100 / 54. 66.100
    
  libavformat    54. 33.100 / 54. 33.100
    
  libavdevice    54.  3.100 / 54.  3.100
    
  libavfilter     3. 19.103 /  3. 19.103
    
  libswscale      2.  1.101 /  2.  1.101
    
  libswresample   0. 16.100 /  0. 16.100
    
rtsp://192.168.1.99:7654/test2-rtsp: Invalid data found when processing input
    

    
Server's output:
    

    
Thu Oct 18 11:57:51 2012 FFserver started.
    
Thu Oct 18 11:58:01 2012 192.168.1.101 - - [DESCRIBE] "rtsp://192.168.1.99:7654/test2-rtsp RTSP/1.0" 200 167
    
Segmentation fault (core dumped)

    I don’t really know what I could be missing. I’ve just read in the official doc that streaming from a file is kind of broken. Since I don’t really know if that’s up to date, I decided to give it a try here.

    Any help or suggestions ? Alternatives ?

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