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    This page lists some websites based on MediaSPIP.

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    Certains thèmes prennent en compte trois éléments de personnalisation : l’ajout d’un logo ; l’ajout d’une bannière l’ajout d’une image de fond ;

  • Creating farms of unique websites

    13 avril 2011, par

    MediaSPIP platforms can be installed as a farm, with a single "core" hosted on a dedicated server and used by multiple websites.
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Sur d’autres sites (11250)

  • 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,

  • Error concatenating two files with ffmpeg ubuntu

    3 janvier 2014, par Dan Ramos

    The following command works fine in OS X :

    ffmpeg -f concat -i videos_playlist.txt -c copy final.mkv

    But when I try to run it on ubuntu i get the following :

    Unknown input format: 'concat'

    Any idea what I'm missing or a possible work around ?

    OS X build :

    ffmpeg version 1.2.1 Copyright (c) 2000-2013 the FFmpeg developers
    
built on Aug  8 2013 11:49:17 with Apple LLVM version 4.2 (clang-425.0.24) (based on LLVM 3.2svn)

    Ubuntu build :

    ffmpeg version 0.10.8-7:0.10.8-1~precise1 Copyright (c) 2000-2013 the FFmpeg developers
    
built on Sep  5 2013 14:56:20 with gcc 4.6.3

  • av_interleaved_write_frame() : Connection reset by peer mjpeg : What is wrong with mjpeg stream, ffserver and ffplay ?

    31 décembre 2016, par Ilya Yevlampiev

    I’m creating mjpeg stream from image files using ffmpeg and write it to ffserver’s feed :

    sudo ffmpeg -loop 1 -i fon.jpeg -vcodec mjpeg -f mjpeg http://localhost:8090/feed1.ffm
    

    
ffmpeg version 2.0 Copyright (c) 2000-2013 the FFmpeg developers
    
built on Aug 19 2013 23:10:58 with gcc 4.7 (Debian 4.7.2-5)
    
configuration: 
    
libavutil      52. 38.100 / 52. 38.100
    
libavcodec     55. 18.102 / 55. 18.102
    
libavformat    55. 12.100 / 55. 12.100
    
libavdevice    55.  3.100 / 55.  3.100
    
libavfilter     3. 79.101 /  3. 79.101
    
libswscale      2.  3.100 /  2.  3.100
    
libswresample   0. 17.102 /  0. 17.102
    
Input #0, image2, from 'fon.jpeg':
    
Duration: 00:00:00.04, start: 0.000000, bitrate: N/A
    
Stream #0:0: Video: mjpeg, yuvj420p, 1280x720 [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 25 tbn, 25 tbc
    
Output #0, mjpeg, to 'http://localhost:8090/feed1.ffm':
    
Metadata:
    
encoder         : Lavf55.12.100
    
Stream #0:0: Video: mjpeg, yuvj420p, 1280x720 [SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 90k tbn, 25 tbc
    
Stream mapping:
    
Stream #0:0 -> #0:0 (mjpeg -> mjpeg)
    
Press [q] to stop, [?] for help

    ffserver is configured as

    Port 8090
    
RTSPPort 8594
    
BindAddress 0.0.0.0
    
MaxClients 100
    
MaxBandwidth 20000
    
NoDaemon
    
<feed>
    
File /tmp/feed.ffm
    
FileMaxSize 3M
    
</feed>
    
<stream>
    
Feed feed.ffm
    
Format rtsp
    
VideoCodec mjpeg
    
VideoFrameRate 30
    
VideoBufferSize 80000
    
VideoBitRate 200
    
VideoQMin 1
    
VideoQMax 5
    
VideoSize 1280x720
    
PreRoll 1
    
Noaudio
    
</stream>
    
<stream>
    
Feed feed.ffm
    
Format swf
    
VideoCodec flv
    
VideoFrameRate 30
    
VideoBufferSize 50000
    
VideoBitRate 100
    
VideoQMin 1
    
VideoQMax 5
    
VideoSize 1280x720
    
PreRoll 0
    
Noaudio
    
</stream>

    Then I’m trying to retrieve the rtsp stream from the ffserver :

    ffplay http://localhost:8090/test.rtsp -loglevel debug
    
avplay version 0.8.5-6:0.8.5-1, Copyright (c) 2003-2012 the Libav developers
    
built on Jan 13 2013 12:05:48 with gcc 4.7.2
    
configuration: --arch=amd64 --enable-pthreads --enable-runtime-cpudetect --extra-         version='6:0.8.5-1' --libdir=/usr/lib/x86_64-linux-gnu --prefix=/usr --enable-bzlib --enable-libdc1394 --enable-libdirac --enable-libfreetype --enable-frei0r --enable-gnutls --enable-libgsm --enable-libmp3lame --enable-librtmp --enable-libopencv --enable-libopenjpeg --enable-libpulse --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-vaapi --enable-vdpau --enable-libvorbis --enable-libvpx --enable-zlib --enable-gpl --enable-postproc --enable-swscale --enable-libcdio --enable-x11grab --enable-libx264 --enable-libxvid --shlibdir=/usr/lib/x86_64-linux-gnu --enable-shared --disable-static

    avutil configuration : —arch=amd64 —enable-pthreads —enable-runtime-cpudetect —extra-version=’6:0.8.4-1’ —libdir=/usr/lib/x86_64-linux-gnu —prefix=/usr —enable-bzlib —enable-libdc1394 —enable-libdirac —enable-libfreetype —enable-frei0r —enable-gnutls —enable-libgsm —enable-libmp3lame —enable-librtmp —enable-libopencv —enable-libopenjpeg —enable-libpulse —enable-libschroedinger —enable-libspeex —enable-libtheora —enable-vaapi —enable-vdpau —enable-libvorbis —enable-libvpx —enable-zlib —enable-gpl —enable-postproc —enable-swscale —enable-libcdio —enable-x11grab —enable-libx264 —enable-libxvid —shlibdir=/usr/lib/x86_64-linux-gnu —enable-shared —disable-static
    avcodec configuration : —arch=amd64 —enable-pthreads —enable-runtime-cpudetect —extra-version=’6:0.8.4-1’ —libdir=/usr/lib/x86_64-linux-gnu —prefix=/usr —enable-bzlib —enable-libdc1394 —enable-libdirac —enable-libfreetype —enable-frei0r —enable-gnutls —enable-libgsm —enable-libmp3lame —enable-librtmp —enable-libopencv —enable-libopenjpeg —enable-libpulse —enable-libschroedinger —enable-libspeex —enable-libtheora —enable-vaapi —enable-vdpau —enable-libvorbis —enable-libvpx —enable-zlib —enable-gpl —enable-postproc —enable-swscale —enable-libcdio —enable-x11grab —enable-libx264 —enable-libxvid —shlibdir=/usr/lib/x86_64-linux-gnu —enable-shared —disable-static
    avformat configuration : —arch=amd64 —enable-pthreads —enable-runtime-cpudetect —extra-version=’6:0.8.4-1’ —libdir=/usr/lib/x86_64-linux-gnu —prefix=/usr —enable-bzlib —enable-libdc1394 —enable-libdirac —enable-libfreetype —enable-frei0r —enable-gnutls —enable-libgsm —enable-libmp3lame —enable-librtmp —enable-libopencv —enable-libopenjpeg —enable-libpulse —enable-libschroedinger —enable-libspeex —enable-libtheora —enable-vaapi —enable-vdpau —enable-libvorbis —enable-libvpx —enable-zlib —enable-gpl —enable-postproc —enable-swscale —enable-libcdio —enable-x11grab —enable-libx264 —enable-libxvid —shlibdir=/usr/lib/x86_64-linux-gnu —enable-shared —disable-static
    swscale configuration : —arch=amd64 —enable-pthreads —enable-runtime-cpudetect —extra-version=’6:0.8.4-1’ —libdir=/usr/lib/x86_64-linux-gnu —prefix=/usr —enable-bzlib —enable-libdc1394 —enable-libdirac —enable-libfreetype —enable-frei0r —enable-gnutls —enable-libgsm —enable-libmp3lame —enable-librtmp —enable-libopencv —enable-libopenjpeg —enable-libpulse —enable-libschroedinger —enable-libspeex —enable-libtheora —enable-vaapi —enable-vdpau —enable-libvorbis —enable-libvpx —enable-zlib —enable-gpl —enable-postproc —enable-swscale —enable-libcdio —enable-x11grab —enable-libx264 —enable-libxvid —shlibdir=/usr/lib/x86_64-linux-gnu —enable-shared —disable-static
    postproc configuration : —arch=amd64 —enable-pthreads —enable-runtime-cpudetect —extra-version=’6:0.8.4-1’ —libdir=/usr/lib/x86_64-linux-gnu —prefix=/usr —enable-bzlib —enable-libdc1394 —enable-libdirac —enable-libfreetype —enable-frei0r —enable-gnutls —enable-libgsm —enable-libmp3lame —enable-librtmp —enable-libopencv —enable-libopenjpeg —enable-libpulse —enable-libschroedinger —enable-libspeex —enable-libtheora —enable-vaapi —enable-vdpau —enable-libvorbis —enable-libvpx —enable-zlib —enable-gpl —enable-postproc —enable-swscale —enable-libcdio —enable-x11grab —enable-libx264 —enable-libxvid —shlibdir=/usr/lib/x86_64-linux-gnu —enable-shared —disable-static

     libavutil    51. 22. 1 / 51. 22. 1
    
 libavcodec   53. 35. 0 / 53. 35. 0
    
 libavformat  53. 21. 1 / 53. 21. 0
    
 libavdevice  53.  2. 0 / 53.  2. 0
    
 libavfilter   2. 15. 0 /  2. 15. 0
    
 libswscale    2.  1. 0 /  2.  1. 0
    
 libpostproc  52.  0. 0 / 52.  0. 0
    
 http://localhost:8090/test.rtsp: Invalid data found when processing input

    So, what is wrong in this streaming example, if I have no problem when I substitute streams to the files ?

    I create a mjpeg file using the same parameters 9i.e. file is an output insteadof stream)

    sudo ffmpeg -loop 1 -i fon.jpeg -vcodec mjpeg -f mjpeg test.mjpg
    
ffmpeg version 2.0 Copyright (c) 2000-2013 the FFmpeg developers
    
built on Aug 19 2013 23:10:58 with gcc 4.7 (Debian 4.7.2-5)
    
configuration: 
    
libavutil      52. 38.100 / 52. 38.100
    
libavcodec     55. 18.102 / 55. 18.102
    
libavformat    55. 12.100 / 55. 12.100
    
libavdevice    55.  3.100 / 55.  3.100
    
libavfilter     3. 79.101 /  3. 79.101
    
libswscale      2.  3.100 /  2.  3.100
    
libswresample   0. 17.102 /  0. 17.102
    
Input #0, image2, from 'fon.jpeg':
    
Duration: 00:00:00.04, start: 0.000000, bitrate: N/A
    
Stream #0:0: Video: mjpeg, yuvj420p, 1280x720 [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 25 tbn, 25 tbc
    
Output #0, mjpeg, to 'test.mjpg':
    
Metadata:
    
encoder         : Lavf55.12.100
    
Stream #0:0: Video: mjpeg, yuvj420p, 1280x720 [SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 90k tbn, 25 tbc
    
Stream mapping:
    
Stream #0:0 -> #0:0 (mjpeg -> mjpeg)
    
Press [q] to stop, [?] for help
    
frame=   36 fps=0.0 q=0.0 size=     888kB time=00:00:01.36 bitrate=5349.2kbits/sframe=   78 fps= 76 q=0.0 size=    1711kB time=00:00:03.04 bitrate=4609.9kbits/sframe=  120 fps= 78 q=0.0 size=    2533kB time=00:00:04.72 bitrate=4396.9kbits/sframe=  161 fps= 79 q=0.0 size=    3336kB time=00:00:06.36 bitrate=4297.5kbits/sframe=  202 fps= 79 q=0.0 size=    4139kB       
    
time=00:00:08.00 bitrate=4238.8kbits/sframe=  243 fps= 79 q=0.0 size=    4943kB  
    
time=00:00:09.64 bitrate=4200.1kbits/sframe=  282 fps= 79 q=0.0 size=    5706kB 
    
time=00:00:11.20 bitrate=4173.9kbits/sframe=  321 fps= 79 q=0.0 size=    6470kB  
    
time=00:00:12.76 bitrate=4154.0kbits/sframe=  358 fps= 78 q=0.0 size=    7195kB 
    
time=00:00:14.24 bitrate=4139.2kbits/sframe=  397 fps= 68 q=0.0 size=    7959kB 
    
time=00:00:15.80 bitrate=4126.6kbits/s    
    
[1]+  Stopped sudo ffmpeg -loop 1 -i fon.jpeg -vcodec mjpeg -f mjpeg test.mjpg

    And then I playback this mjpeg file with ffplay. The play back is correct, I see no errors or exceptions.

    ffplay test.mjpg
    
avplay version 0.8.5-6:0.8.5-1, Copyright (c) 2003-2012 the Libav developers
    
built on Jan 13 2013 12:05:48 with gcc 4.7.2
    
[mjpeg @ 0x7fc3680008c0] max_analyze_duration reached
    
[mjpeg @ 0x7fc3680008c0] Estimating duration from bitrate, this may be inaccurate
    
Input #0, mjpeg, from 'test.mjpg':
    
Duration: N/A, bitrate: N/A
    
Stream #0.0: Video: mjpeg, yuvj420p, 1280x720 [PAR 1:1 DAR 16:9], 25 fps, 25 tbr, 1200k tbn, 1200k tbc
    
[avsink @ 0x7fc360001020] auto-inserting filter 'auto-inserted scaler 0' between the filter 'src' and the filter 'out'
    
[scale @ 0x7fc360001700] w:1280 h:720 fmt:yuvj420p -> w:1280 h:720 fmt:yuv420p flags:0x4
    
27.99 A-V:  0.000 s:0.0 aq=    0KB vq=    0KB sq=    0B f=0/0   0/0

    So, what is the configuration issue for ffserver, or may be it is a bug of the ffserver ?

    UPD. I have realized, that i fed file1.ffm instead of file.ffm ; that caused some ffserver problem :

     Mon Sep  9 11:43:20 2013 [ffm @ 0x2110000]Format ffm probed with size=2048 and score=101
    
 Mon Sep  9 11:43:20 2013 Deleting feed file 'feed1.ffm' as stream counts differ (1 != 2)
    
 Mon Sep  9 11:43:20 2013 [AVIOContext @ 0x210d660]Statistics: 4096 bytes read, 0 seeks
    
 Mon Sep  9 11:43:20 2013 [AVIOContext @ 0x210a9a0]Statistics: 0 seeks, 1 writeouts
    
 Mon Sep  9 11:43:20 2013 FFserver started.
    
 Mon Sep  9 11:44:18 2013 File '/feed1.ffm' not found
    
 Mon Sep  9 11:44:18 2013 127.0.0.1 - - [POST] "/feed1.ffm HTTP/1.1" 404 149

    After i set a correct feed, i got another exception on ffmpeg side :

    sudo ffmpeg -loop 1 -i fon.jpeg -vcodec mjpeg -f mjpeg http://localhost:8090/feed.ffm
    
ffmpeg version 2.0 Copyright (c) 2000-2013 the FFmpeg developers
    
built on Aug 19 2013 23:10:58 with gcc 4.7 (Debian 4.7.2-5)
    
configuration: 
    
libavutil      52. 38.100 / 52. 38.100
    
libavcodec     55. 18.102 / 55. 18.102
    
libavformat    55. 12.100 / 55. 12.100
    
libavdevice    55.  3.100 / 55.  3.100
    
libavfilter     3. 79.101 /  3. 79.101
    
libswscale      2.  3.100 /  2.  3.100
    
libswresample   0. 17.102 /  0. 17.102
    
Input #0, image2, from 'fon.jpeg':
    
Duration: 00:00:00.04, start: 0.000000, bitrate: N/A
    
Stream #0:0: Video: mjpeg, yuvj420p, 1280x720 [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 25 tbn, 25 tbc
    
Output #0, mjpeg, to 'http://localhost:8090/feed.ffm':
    
Metadata:
    
encoder         : Lavf55.12.100
    
Stream #0:0: Video: mjpeg, yuvj420p, 1280x720 [SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 90k tbn, 25 tbc
    
Stream mapping:
    
Stream #0:0 -> #0:0 (mjpeg -> mjpeg)
    
Press [q] to stop, [?] for help
    
av_interleaved_write_frame(): Connection reset by peer

    While ffserver shows no error at all :

    sudo ffserver -f  /etc/ffserver3.conf
    
ffserver version 2.0 Copyright (c) 2000-2013 the FFmpeg developers
    
built on Aug 19 2013 23:10:58 with gcc 4.7 (Debian 4.7.2-5)
    
configuration: 
    
libavutil      52. 38.100 / 52. 38.100
    
libavcodec     55. 18.102 / 55. 18.102
    
libavformat    55. 12.100 / 55. 12.100
    
libavdevice    55.  3.100 / 55.  3.100
    
libavfilter     3. 79.101 /  3. 79.101
    
libswscale      2.  3.100 /  2.  3.100
    
libswresample   0. 17.102 /  0. 17.102
    
Mon Sep  9 12:08:19 2013 FFserver started.
    
Mon Sep  9 12:08:40 2013 127.0.0.1 - - [POST] "/feed.ffm HTTP/1.1" 200 4096
    
Mon Sep  9 12:12:28 2013 127.0.0.1 - - [GET] "/ HTTP/1.1" 200 1847

    So, what is the problem now ?

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