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  • MediaSPIP 0.1 Beta version

    25 avril 2011, par

    MediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
    The zip file provided here only contains the sources of MediaSPIP in its standalone version.
    To get a working installation, you must manually install all-software dependencies on the server.
    If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...)

  • 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.

  • Des sites réalisés avec MediaSPIP

    2 mai 2011, par

    Cette page présente quelques-uns des sites fonctionnant sous MediaSPIP.
    Vous pouvez bien entendu ajouter le votre grâce au formulaire en bas de page.

Sur d’autres sites (11280)

  • ffmpeg audio conversion : encoder pcm_u8 working pcm_s8 not

    1er août 2016, par patszn

    I need to convert audio inside video to 8 Bit signed PCM. I try it like this :

    C:\Users\E\Desktop\ffmpeg-20160731-04da20e-win32-static\bin>ffmpeg -i minions.mp4 -vcodec mjpeg -s 800x480 -acodec pcm_s8 -ac 1 out.avi

    output :

    ffmpeg version N-81192-g04da20e Copyright (c) 2000-2016 the FFmpeg developers
    
  built with gcc 5.4.0 (GCC)
    
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth --enable-bzlib --enable-lib
    
ebur128 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfree
    
type --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-lib
    
openjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame
    
 --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-
    
libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-decklink --enable-zlib
    
  libavutil      55. 28.100 / 55. 28.100
    
  libavcodec     57. 51.100 / 57. 51.100
    
  libavformat    57. 44.100 / 57. 44.100
    
  libavdevice    57.  0.102 / 57.  0.102
    
  libavfilter     6. 49.100 /  6. 49.100
    
  libswscale      4.  1.100 /  4.  1.100
    
  libswresample   2.  1.100 /  2.  1.100
    
  libpostproc    54.  0.100 / 54.  0.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'minions.mp4':
    
  Metadata:
    
    major_brand     : mp42
    
    minor_version   : 0
    
    compatible_brands: isommp42
    
    creation_time   : 2016-03-17 10:06:57
    
  Duration: 00:03:18.72, start: 0.000000, bitrate: 1869 kb/s
    
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 1675 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 47.95 tbc (default
    
)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 192 kb/s (default)
    
    Metadata:
    
      creation_time   : 2016-03-17 10:06:58
    
      handler_name    : IsoMedia File Produced by Google, 5-11-2011
    
[swscaler @ 04821880] deprecated pixel format used, make sure you did set range correctly
    
[avi @ 048c0460] Using AVStream.codec to pass codec parameters to muxers is deprecated, use AVStream.codecpar instead.
    
    Last message repeated 1 times
    
Output #0, avi, to 'out.avi':
    
  Metadata:
    
    major_brand     : mp42
    
    minor_version   : 0
    
    compatible_brands: isommp42
    
    encoder         : Lavf57.44.100
    
    Stream #0:0(und): Video: mjpeg (MJPG / 0x47504A4D), yuvj420p(pc), 800x480 [SAR 16:15 DAR 16:9], q=2-31, 200 kb/s, 23.98 fps, 23.98 tbn, 23.98 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
      encoder         : Lavc57.51.100 mjpeg
    
    Side data:
    
      cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1
    
    Stream #0:1(und): Audio: pcm_s8, 44100 Hz, mono, u8, 352 kb/s (default)
    
    Metadata:
    
      creation_time   : 2016-03-17 10:06:58
    
      handler_name    : IsoMedia File Produced by Google, 5-11-2011
    
      encoder         : Lavc57.51.100 pcm_s8
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (h264 (native) -> mjpeg (native))
    
  Stream #0:1 -> #0:1 (aac (native) -> pcm_s8 (native))
    
Could not write header for output file #0 (incorrect codec parameters ?): Operation not permitted

    ffmpeg can not write a header for output file. I want to mention that if audio encoder is selected to pcm_u8 everything works fine.

    C:\Users\E\Desktop\ffmpeg-20160731-04da20e-win32-static\bin>ffmpeg -i minions.mp4 -vcodec mjpeg -s 800x480 -acodec pcm_u8 -ac 1 out.avi

    output :

    ffmpeg version N-81192-g04da20e Copyright (c) 2000-2016 the FFmpeg developers
    
  built with gcc 5.4.0 (GCC)
    
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth --enable-bzlib --enable-lib
    
ebur128 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfree
    
type --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-lib
    
openjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame
    
 --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-
    
libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-decklink --enable-zlib
    
  libavutil      55. 28.100 / 55. 28.100
    
  libavcodec     57. 51.100 / 57. 51.100
    
  libavformat    57. 44.100 / 57. 44.100
    
  libavdevice    57.  0.102 / 57.  0.102
    
  libavfilter     6. 49.100 /  6. 49.100
    
  libswscale      4.  1.100 /  4.  1.100
    
  libswresample   2.  1.100 /  2.  1.100
    
  libpostproc    54.  0.100 / 54.  0.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'minions.mp4':
    
  Metadata:
    
    major_brand     : mp42
    
    minor_version   : 0
    
    compatible_brands: isommp42
    
    creation_time   : 2016-03-17 10:06:57
    
  Duration: 00:03:18.72, start: 0.000000, bitrate: 1869 kb/s
    
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 1675 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 47.95 tbc (default
    
)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 192 kb/s (default)
    
    Metadata:
    
      creation_time   : 2016-03-17 10:06:58
    
      handler_name    : IsoMedia File Produced by Google, 5-11-2011
    
File 'out.avi' already exists. Overwrite ? [y/N] y
    
[swscaler @ 030a1880] deprecated pixel format used, make sure you did set range correctly
    
[avi @ 04a10460] Using AVStream.codec to pass codec parameters to muxers is deprecated, use AVStream.codecpar instead.
    
    Last message repeated 1 times
    
Output #0, avi, to 'out.avi':
    
  Metadata:
    
    major_brand     : mp42
    
    minor_version   : 0
    
    compatible_brands: isommp42
    
    ISFT            : Lavf57.44.100
    
    Stream #0:0(und): Video: mjpeg (MJPG / 0x47504A4D), yuvj420p(pc), 800x480 [SAR 16:15 DAR 16:9], q=2-31, 200 kb/s, 23.98 fps, 23.98 tbn, 23.98 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
      encoder         : Lavc57.51.100 mjpeg
    
    Side data:
    
      cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1
    
    Stream #0:1(und): Audio: pcm_u8 ([1][0][0][0] / 0x0001), 44100 Hz, mono, u8, 352 kb/s (default)
    
    Metadata:
    
      creation_time   : 2016-03-17 10:06:58
    
      handler_name    : IsoMedia File Produced by Google, 5-11-2011
    
      encoder         : Lavc57.51.100 pcm_u8
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (h264 (native) -> mjpeg (native))
    
  Stream #0:1 -> #0:1 (aac (native) -> pcm_u8 (native))
    
Press [q] to stop, [?] for help
    
frame= 4764 fps=250 q=24.8 Lsize=   74247kB time=00:03:18.71 bitrate=3060.8kbits/s speed=10.4x
    
video:65364kB audio:8558kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.438745%

    What is the problem ? Why conversion does not work for signed pcm ?

    Encoders for both unsigned and signed pcm are avaible :

    C:\Users\E\Desktop\ffmpeg-20160731-04da20e-win32-static\bin>ffmpeg -encoders

     .
    
 .
    
 A..... pcm_f32be            PCM 32-bit floating point big-endian
    
 A..... pcm_f32le            PCM 32-bit floating point little-endian
    
 A..... pcm_f64be            PCM 64-bit floating point big-endian
    
 A..... pcm_f64le            PCM 64-bit floating point little-endian
    
 A..... pcm_mulaw            PCM mu-law / G.711 mu-law
    
 A..... pcm_s16be            PCM signed 16-bit big-endian
    
 A..... pcm_s16be_planar     PCM signed 16-bit big-endian planar
    
 A..... pcm_s16le            PCM signed 16-bit little-endian
    
 A..... pcm_s16le_planar     PCM signed 16-bit little-endian planar
    
 A..... pcm_s24be            PCM signed 24-bit big-endian
    
 A..... pcm_s24daud          PCM D-Cinema audio signed 24-bit
    
 A..... pcm_s24le            PCM signed 24-bit little-endian
    
 A..... pcm_s24le_planar     PCM signed 24-bit little-endian planar
    
 A..... pcm_s32be            PCM signed 32-bit big-endian
    
 A..... pcm_s32le            PCM signed 32-bit little-endian
    
 A..... pcm_s32le_planar     PCM signed 32-bit little-endian planar
    
 A..... pcm_s8               PCM signed 8-bit
    
 A..... pcm_s8_planar        PCM signed 8-bit planar
    
 A..... pcm_u16be            PCM unsigned 16-bit big-endian
    
 A..... pcm_u16le            PCM unsigned 16-bit little-endian
    
 A..... pcm_u24be            PCM unsigned 24-bit big-endian
    
 A..... pcm_u24le            PCM unsigned 24-bit little-endian
    
 A..... pcm_u32be            PCM unsigned 32-bit big-endian
    
 A..... pcm_u32le            PCM unsigned 32-bit little-endian
    
 A..... pcm_u8               PCM unsigned 8-bit
    
 .
    
 .

  • Perl FFMpeg print output

    31 janvier 2012, par user346443

    Hi im using the following perl command to convert files with ffmpeg :

    system ("/usr/local/bin/ffmpeg -i $inputFile $outputFile");

    I would like to know if its possible to print the ffmpeg output ?

    Cheers

    UPDATE

    The solution was to use backticks

    my $output = qx{/usr/local/bin/ffmpeg -i $inputFile $outputFile 2>&1};
    
print $output

    This prints out the following :

    FFmpeg version SVN-r26402, Copyright (c) 2000-2011 the FFmpeg developers built on Jan 31 2012 12:30:35 with gcc 4.4.5 20110214 (Red Hat 4.4.5-6) configuration: --enable-libmp3lame --disable-mmx --enable-shared libavutil 50.36. 0 / 50.36. 0 libavcore 0.16. 1 / 0.16. 1 libavcodec 52.108. 0 / 52.108. 0 libavformat 52.93. 0 / 52.93. 0 libavdevice 52. 2. 3 / 52. 2. 3 libavfilter 1.74. 0 / 1.74. 0 libswscale 0.12. 0 / 0.12. 0 [wav @ 0x8af94c0] max_analyze_duration reached Input #0, wav, from 'a.wav': Duration: 00:00:05.84, bitrate: 1537 kb/s Stream #0.0: Audio: pcm_s16le, 48000 Hz, 2 channels, s16, 1536 kb/s Output #0, mp3, to 'a.mp3': Metadata: TSSE : Lavf52.93.0 Stream #0.0: Audio: libmp3lame, 48000 Hz, 2 channels, s16, 64 kb/s Stream mapping: Stream #0.0 -> #0.0 Press [q] to stop encoding size= 42kB time=5.42 bitrate= 64.0kbits/s size= 46kB time=5.88 bitrate= 64.0kbits/s video:0kB audio:46kB global headers:0kB muxing overhead 0.070153%

  • reading video mpegts stream from stdin using libavformat libavcodec

    1er février 2012, par D Starkweather

    I'm trying to read video frames from stdin using ffmpeg's libav* lib collection. Simply passing "pipe:0" or "pipe :" as the filename to avformat_open_input_file() in my program does not do the trick. (e.g. cat /dev/video0 | ./myprogram OR ./myprogram < /dev/video0 ; it also fails using file.avi in place of /dev/video0).

    Peeking into ffmpeg.c, I find the following bit of code using tcsetattr() to set the termios :

    struct termios tty;
    

    
if (tcgetattr (0, &amp;tty) == 0) {
    
oldtty = tty;
    
restore_tty = 1;
    
atexit(term_exit);
    

    
tty.c_iflag &amp;= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
    
                      |INLCR|IGNCR|ICRNL|IXON);
    
tty.c_oflag |= OPOST;
    
tty.c_lflag &amp;= ~(ECHO|ECHONL|ICANON|IEXTEN);
    
tty.c_cflag &amp;= ~(CSIZE|PARENB);
    
tty.c_cflag |= CS8;
    
tty.c_cc[VMIN] = 1;
    
tty.c_cc[VTIME] = 0;
    

    
tcsetattr (0, TCSANOW, &amp;tty);
    
}
    
signal(SIGQUIT, sigterm_handler); /* Quit (POSIX).  */
    
}
    

    
avformat_network_deinit();
    

    
signal(SIGINT , sigterm_handler); /* Interrupt (ANSI).    */
    
signal(SIGTERM, sigterm_handler); /* Termination (ANSI).  */
    
signal(SIGXCPU, sigterm_handler);

    However, when I try this, it appears to have no effect. What settings do I need in the termios struct to continuously read video frames in ?

    Currently, all i am able to do is call av_read_frames a few times (return code 0) before it usually either segfaults or hangs waiting. The buffer usually contains just a blank screen (all black). With any luck, the video buffer will contain the first video frame it comes across, but does not update to the later frames.

    (I'm running this on Debian 6.0) Here's my version of ffmpeg :

    ffmpeg version N-36936-g4cf81d9 Copyright (c) 2000-2012 the FFmpeg
    developers built on Jan 19 2012 20:51:47 with gcc 4.4.5
    configuration : —enable-shared —enable-gray —enable-hardcoded-tables
    —enable-runtime-cpudetect —enable-libmp3lame —enable-libopenjpeg —enable-librtmp —enable-libtheora —enable-libvorbis —enable-libx264 —enable-libxvid —enable-zlib —enable-gpl libavutil 51. 34.101 / 51. 34.101 libavcodec 53. 57.100 /
    53. 57.100 libavformat 53. 30.100 / 53. 30.100 libavdevice 53. 4.100 / 53. 4.100 libavfilter 2. 59.101 / 2. 59.101 libswscale 2. 1.100 / 2. 1.100 libswresample 0. 6.100 /
    0. 6.100 libpostproc 52. 0.100 / 52. 0.100 Hyper fast Audio and Video encoder usage : ffmpeg [options] [[infile options] -i
    infile].

    Thank you very much for any help helpful tips. It is much appreciated.

    D. Grant Starkweather

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