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  • Le profil des utilisateurs

    12 avril 2011, par

    Chaque utilisateur dispose d’une page de profil lui permettant de modifier ses informations personnelle. Dans le menu de haut de page par défaut, un élément de menu est automatiquement créé à l’initialisation de MediaSPIP, visible uniquement si le visiteur est identifié sur le site.
    L’utilisateur a accès à la modification de profil depuis sa page auteur, un lien dans la navigation "Modifier votre profil" est (...)

  • Websites made ​​with MediaSPIP

    2 mai 2011, par

    This page lists some websites based on MediaSPIP.

  • Ajouter des informations spécifiques aux utilisateurs et autres modifications de comportement liées aux auteurs

    12 avril 2011, par

    La manière la plus simple d’ajouter des informations aux auteurs est d’installer le plugin Inscription3. Il permet également de modifier certains comportements liés aux utilisateurs (référez-vous à sa documentation pour plus d’informations).
    Il est également possible d’ajouter des champs aux auteurs en installant les plugins champs extras 2 et Interface pour champs extras.

Sur d’autres sites (14132)

  • Core : Use jQuery 1.7+ on/off, add destroy method

    17 juin 2015, par Westie
    Core : Use jQuery 1.7+ on/off, add destroy method

    Replaces validateDelegate method with jQuery’s on() method. This raises
    
the minimum supported jQuery version to 1.7.0, dropping support for 1.6.
    

    Closes #1392

  • Improve encoding speed on older Intel CPUs.

    4 décembre 2014, par Erik de Castro Lopo
    Improve encoding speed on older Intel CPUs.

    The commit http://git.xiph.org/?p=flac.git;a=commit;h=e9d805dd4374
    
changed the that calculate autocorrelation. However, the new code
    
worked slightly (about 4%) slower on Core 2, but with the new
    
presets the speed decrease can reach 25%.
    

    This patch enables both old and new functions and chooses between
    
them at runtime.
    

    Patch-from : lvqcl <lvqcl.mail@gmail.com>
    • [DH] src/libFLAC/cpu.c
    • [DH] src/libFLAC/ia32/lpc_asm.nasm
    • [DH] src/libFLAC/include/private/cpu.h
    • [DH] src/libFLAC/include/private/lpc.h
    • [DH] src/libFLAC/lpc_intrin_sse.c
    • [DH] src/libFLAC/stream_encoder.c

  • Gstreamer AAC encoding no more supported ?

    22 juillet 2016, par Gianks

    i’d like to include AAC as one of the compatible formats in my app but i’m having troubles with its encoding.
    FAAC seems to be missing in GStreamer-1.0 Debian-derived packages (see Ubuntu) and the main reason for that (if i got it correctly) is the presence of avenc_aac (Lunchpad bugreport) as a replacement.

    I’ve tried the following :

    gst-launch-1.0 filesrc location="src.avi" ! tee name=t  t.! queue ! decodebin ! progressreport ! x264enc ! mux. t.! queue ! decodebin ! audioconvert ! audioresample ! avenc_aac compliance=-2 ! mux. avmux_mpegts name=mux ! filesink location=/tmp/test.avi

    It hangs prerolling with :

    ERROR libav :0:: AAC bitstream not in ADTS format and extradata missing

    Using mpegtsmux instead of avmux_mpegts seems to work since the file is created but it results with no working audio (with some players it’s completely unplayable).

    This is the trace of mplayer :

    Opening audio decoder: [ffmpeg] FFmpeg/libavcodec audio decoders
    
[aac @ 0x7f2860d6c3c0]channel element 3.15 is not allocated
    
[aac @ 0x7f2860d6c3c0]Sample rate index in program config element does not match the sample rate index configured by the container.
    
[aac @ 0x7f2860d6c3c0]Inconsistent channel configuration.
    
[aac @ 0x7f2860d6c3c0]get_buffer() failed
    
[aac @ 0x7f2860d6c3c0]Assuming an incorrectly encoded 7.1 channel layout instead of a spec-compliant 7.1(wide) layout, use -strict 1 to decode according to the specification instead.
    
[aac @ 0x7f2860d6c3c0]Reserved bit set.
    
[aac @ 0x7f2860d6c3c0]Number of bands (20) exceeds limit (14).
    
[aac @ 0x7f2860d6c3c0]invalid band type
    
[aac @ 0x7f2860d6c3c0]More than one AAC RDB per ADTS frame is not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
    
[aac @ 0x7f2860d6c3c0]Reserved bit set.
    
[aac @ 0x7f2860d6c3c0]Number of bands (45) exceeds limit (28).
    
Unknown/missing audio format -> no sound
    
ADecoder init failed :(
    
Opening audio decoder: [faad] AAC (MPEG2/4 Advanced Audio Coding)
    
FAAD: compressed input bitrate missing, assuming 128kbit/s!
    
AUDIO: 44100 Hz, 2 ch, floatle, 128.0 kbit/9.07% (ratio: 16000->176400)
    
Selected audio codec: [faad] afm: faad (FAAD AAC (MPEG-2/MPEG-4 Audio))
    
==========================================================================
    
AO: [pulse] 44100Hz 2ch floatle (4 bytes per sample)
    
Starting playback...
    
FAAD: error: Bitstream value not allowed by specification, trying to resync!
    
FAAD: error: Invalid number of channels, trying to resync!
    
FAAD: error: Invalid number of channels, trying to resync!
    
FAAD: error: Bitstream value not allowed by specification, trying to resync!
    
FAAD: error: Invalid number of channels, trying to resync!
    
FAAD: error: Bitstream value not allowed by specification, trying to resync!
    
FAAD: error: Channel coupling not yet implemented, trying to resync!
    
FAAD: error: Invalid number of channels, trying to resync!
    
FAAD: error: Invalid number of channels, trying to resync!
    
FAAD: error: Bitstream value not allowed by specification, trying to resync!
    
FAAD: Failed to decode frame: Bitstream value not allowed by specification 
    
Movie-Aspect is 1.33:1 - prescaling to correct movie aspect.
    
VO: [vdpau] 640x480 => 640x480 Planar YV12 
    
A:3602.2 V:3600.0 A-V:  2.143 ct:  0.000   3/  3 ??% ??% ??,?% 0 0 
    
FAAD: error: Array index out of range, trying to resync!
    
FAAD: error: Bitstream value not allowed by specification, trying to resync!
    
FAAD: error: Bitstream value not allowed by specification, trying to resync!
    
FAAD: error: Unexpected fill element with SBR data, trying to resync!
    
FAAD: error: Bitstream value not allowed by specification, trying to resync!
    
FAAD: error: Bitstream value not allowed by specification, trying to resync!
    
FAAD: error: Channel coupling not yet implemented, trying to resync!
    
FAAD: error: Invalid number of channels, trying to resync!
    
FAAD: error: PCE shall be the first element in a frame, trying to resync!
    
FAAD: error: Invalid number of channels, trying to resync!
    
FAAD: Failed to decode frame: Invalid number of channels 
    
A:3602.2 V:3600.1 A-V:  2.063 ct:  0.000   4/  4 ??% ??% ??,?% 0 0

    These the messages produced by VLC (10 seconds of playback) :

    ts info: MPEG-4 descriptor not found for pid 0x42 type 0xf
    
core error: option sub-original-fps does not exist
    
subtitle warning: failed to recognize subtitle type
    
core error: no suitable demux module for `file/subtitle:///tmp//test.avi.idx'
    
avcodec info: Using NVIDIA VDPAU Driver Shared Library 361.42 Tue Mar 22 17:29:16 PDT 2016 for hardware decoding.
    
core warning: VoutDisplayEvent 'pictures invalid'
    
core warning: VoutDisplayEvent 'pictures invalid'
    
packetizer_mpeg4audio warning: Invalid ADTS header
    
packetizer_mpeg4audio warning: ADTS CRC not supported
    
packetizer_mpeg4audio warning: Invalid ADTS header
    
packetizer_mpeg4audio error: Multiple blocks per frame in ADTS not supported
    
packetizer_mpeg4audio warning: Invalid ADTS header
    
packetizer_mpeg4audio error: Multiple blocks per frame in ADTS not supported
    
packetizer_mpeg4audio warning: ADTS CRC not supported
    
packetizer_mpeg4audio error: Multiple blocks per frame in ADTS not supported
    
packetizer_mpeg4audio error: Multiple blocks per frame in ADTS not supported
    
packetizer_mpeg4audio error: Multiple blocks per frame in ADTS not supported
    
packetizer_mpeg4audio error: Multiple blocks per frame in ADTS not supported
    
packetizer_mpeg4audio error: Multiple blocks per frame in ADTS not supported
    
packetizer_mpeg4audio error: Multiple blocks per frame in ADTS not supported
    
packetizer_mpeg4audio error: Multiple blocks per frame in ADTS not supported
    
packetizer_mpeg4audio error: Multiple blocks per frame in ADTS not supported
    
packetizer_mpeg4audio warning: Invalid ADTS header
    
packetizer_mpeg4audio error: Multiple blocks per frame in ADTS not supported
    
packetizer_mpeg4audio warning: Invalid ADTS header
    
packetizer_mpeg4audio warning: Invalid ADTS header
    
packetizer_mpeg4audio error: Multiple blocks per frame in ADTS not supported
    
packetizer_mpeg4audio warning: Invalid ADTS header
    
packetizer_mpeg4audio warning: Invalid ADTS header
    
packetizer_mpeg4audio warning: Invalid ADTS header
    
packetizer_mpeg4audio error: Multiple blocks per frame in ADTS not supported
    
packetizer_mpeg4audio warning: Invalid ADTS header
    
packetizer_mpeg4audio warning: Invalid ADTS header
    
packetizer_mpeg4audio error: Multiple blocks per frame in ADTS not supported
    
packetizer_mpeg4audio warning: Invalid ADTS header
    
packetizer_mpeg4audio error: Multiple blocks per frame in ADTS not supported
    
packetizer_mpeg4audio error: Multiple blocks per frame in ADTS not supported
    
packetizer_mpeg4audio error: Multiple blocks per frame in ADTS not supported
    
packetizer_mpeg4audio error: Multiple blocks per frame in ADTS not supported
    
packetizer_mpeg4audio error: Multiple blocks per frame in ADTS not supported
    
packetizer_mpeg4audio error: Multiple blocks per frame in ADTS not supported
    
packetizer_mpeg4audio warning: Invalid ADTS header
    
packetizer_mpeg4audio error: Multiple blocks per frame in ADTS not supported
    
packetizer_mpeg4audio error: Multiple blocks per frame in ADTS not supported
    
packetizer_mpeg4audio error: Multiple blocks per frame in ADTS not supported
    
packetizer_mpeg4audio error: Multiple blocks per frame in ADTS not supported
    
packetizer_mpeg4audio error: Multiple blocks per frame in ADTS not supported
    
packetizer_mpeg4audio error: Multiple blocks per frame in ADTS not supported
    
packetizer_mpeg4audio error: Multiple blocks per frame in ADTS not supported

    Using the error of the hanging pipeline I’ve finally discovered that avenc_aac should be told in such way to output the data NOT in RAW AAC but in ADTS AAC, the point is that i’ve no idea how to do that with Gstreamer. See here, bottom of the page : FFMPEG Ticket

    At this point since i’ve found no documentation seems right to say we have no support for AAC encoding in GStreamer... which isn’t true, i guess ! (IMHO anyway seems strange the missing of FAAC if AVENC_AAC requires all the time to be set in experimental mode)

    Can someone propose a working pipeline for this ?

    UPDATE

    After some more research i’ve found (via gst-inspect on avenc_aac) what i’m probably looking for but i don’t know how to setup it as needed.
    Have a look at stream-format :

    Pad Templates:
    
  SRC template: 'src'
    
    Availability: Always
    
    Capabilities:
    
      audio/mpeg
    
               channels: [ 1, 6 ]
    
                   rate: [ 4000, 96000 ]
    
            mpegversion: 4
    
          stream-format: raw
    
        base-profile: lc

    Thanks

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