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  • La file d’attente de SPIPmotion

    28 novembre 2010, par

    Une file d’attente stockée dans la base de donnée
    Lors de son installation, SPIPmotion crée une nouvelle table dans la base de donnée intitulée spip_spipmotion_attentes.
    Cette nouvelle table est constituée des champs suivants : id_spipmotion_attente, l’identifiant numérique unique de la tâche à traiter ; id_document, l’identifiant numérique du document original à encoder ; id_objet l’identifiant unique de l’objet auquel le document encodé devra être attaché automatiquement ; objet, le type d’objet auquel (...)

  • La sauvegarde automatique de canaux SPIP

    1er avril 2010, par

    Dans le cadre de la mise en place d’une plateforme ouverte, il est important pour les hébergeurs de pouvoir disposer de sauvegardes assez régulières pour parer à tout problème éventuel.
    Pour réaliser cette tâche on se base sur deux plugins SPIP : Saveauto qui permet une sauvegarde régulière de la base de donnée sous la forme d’un dump mysql (utilisable dans phpmyadmin) mes_fichiers_2 qui permet de réaliser une archive au format zip des données importantes du site (les documents, les éléments (...)

  • 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
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Sur d’autres sites (6276)

  • How to use Behavioural Analytics to Improve Website Performance

    20 septembre 2021, par Ben Erskine — Analytics Tips, Plugins, Heatmap

    User behavioural analytics (UBA) give your business unique insights into your customers. 

    Where traditional website metrics track what actions are completed or how many visitors you have, user behaviour shows the driving factors behind those actions. UBA tools such as website heatmap software provide an easy-to-read visualisation of this data. 

    Ultimately, user behaviour analysis improves website performance and conversions by boosting customer engagement, optimising positive customer experiences, and focusing on the most important part of your sales : the people who are actually buying from you. 

    What is user behaviour analytics ?

    User behaviour analytics (UBA) is data that shows how customers and website visitors interact with your brand online. 

    UBA is tracked using tools such as heatmaps, session recordings and data visualisation software. 

    Where traditional web analytics track metrics such as page views and bounce rates, behavioural analytics provide an even more in-depth picture of your website or funnel success. 

    For example, UBA tracks actions like 

    • How far users are scrolling down the page 
    • Which CTA’s and copy they are focusing on (or not focusing on) 
    • Which design elements, links or buttons they are interacting with 
    • What is happening in between each action

    Tracking user behaviour metrics help keep visitors on your website longer because they analyse where customers may be confused or unclear so you can fix it. 

    What’s the difference between data and behavioural analytics ?

    There are a few key differences between data and behavioural analytics. While data analytics are beneficial to improving website performance, using UBA creates a more customer-centric approach to funnel building. 

    The biggest difference between data and behavioural analytics ? Metric data shows which actions are happening. Behavioural analytics show you WHY they are happening. 

    For example, data can show you that a customer bounced or clicked away. Behaviour analytics show you that a page took a long time to load, they tried to click a link several times and then maybe got frustrated and clicked away. 

    Key differences between data analytics and behavioural analytics : 

    • What is happening versus what is driving it 
    • Track an action (e.g. click-through) versus tracking inaction (e.g. hover without clicking) 
    • Measuring completion of an action versus the flow of actions to complete action 
    • Source of traffic versus individual actions 
    • What happens when someone takes an action versus what happens in between taking action 

    Matomo heatmaps offer both website analytics and user behaviour for a comprehensive analysis.

    Why do behavioural analytics help improve website performance ?

    User behaviour is important because it doesn’t matter how many website visitors you have if they don’t convert. 

    If you have a lot of traffic on mobile devices, but a low CTR, heatmaps show you what is causing the low conversions. Perhaps there is a button that isn’t optimised for mobile scrolling, or a pop up that covers important copy. 

    Analysing the driving factors behind each decision means that you can increase sign-ups and conversions without losing money on website traffic that never actually buys. 

    Matomo's heatmaps feature

    How do heatmap tools show website user behaviour analytics ? 

    Heatmap tools provide a visual representation of user behaviour. 

    There are several key ways that heatmap tracking can improve website performance and therefore your overall conversions.

    Firstly, heatmaps show where to optimise website structure. It uses real visitor experiences to indicate whether customers have to scroll to reach important content, whether important messages are being missed, and whether CTAs are clear. 

    Secondly, heatmaps provide always-on UX and useability testing for your website, identifying user frustrations and optimising their experience over time.

    They also show valuable user experience insights for A/B versions of a landing page. Not only will you see the raw conversion data, but you will also understand why one page converts more than another.

    Ultimately, heatmaps increase ROI on marketing by optimising the traffic that you are sending to your website.

    Matomo Heatmaps - Hotjar alternative

    5 ways heatmaps and user behaviour analytics improve website performance and conversions

    #1. Improve customer experience

    One of the most important uses for UBA is to improve your customer experience. 

    Imagine you had a physical store. If there was something blocking customers from getting to the counter you could easily see and fix the problem. 

    It is just as important for an online store to find and fix these “roadblocks”. 

    Not only does it reduce friction in the sales funnel and make it easy for customers to buy from you, it improves their overall experience. And when 86% of buyers are willing to pay more for a great customer experience, UBA should be one of your number one priorities for growing your bottom line. 

    #2. Improve customer engagement

    Customer engagement is any interaction between a customer/product user and your business. 

    User behaviour analytics increase engagement at each customer journey touch point. 

    Using data from heatmaps will improve customer engagement because it gives you insights into how you can make your website more user friendly. This reduces friction and increases customer loyalty by making sure customers :

    • See important content 
    • Are not distracted by unnecessary elements 
    • Can easily access information or pages no matter what device they are using 
    • Are clicking on important page elements that take them further through the customer journey 

    For example, say a customer is on a sales page. A heatmap might show that pop ups or design elements like links to another page are pulling their attention away from the primary focus (i.e. the sales copy). 

    #3. Focus on customer-centric approach 

    A customer-centric approach means putting your customers at the centre of everything that you do. There is a lot of competition for your customers’ hard earned dollars, so you need to stand out. A good product or service is not enough on its own anymore. 

    User behaviour analytics are at the heart of customer-centric strategies. Instead of guessing how customers interact with your online presence, tools like heatmaps give insight into exactly what customers need. 

    This matched with an effective customer feedback strategy gives a holistic and effective approach to improving your customer experiences. 

    #4. Capture customer data across multiple channels

    Most customers won’t convert on their very first visit to a website. They might interact with your business across many channels and research your product multiple times before purchasing. 

    Multi Channel Conversion Attribution, also known as Cross Channel Attribution, lets you assign a value to each visit prior to a conversion or prior to a sale. By applying different attribution models, you get a better view on which channels actually lead to a conversion.

    User behaviour analytics like the multi channel conversion attribution that Matomo offers can show you exactly where you should focus your money to acquire new customers. 

    #5. Track and measure business objectives

    User behaviour analytics like heatmaps can show you whether you are actually hitting your targets. 

    Setting goals helps track your website performance against business objectives. 

    These include objectives such as lead generation, online sales and increased brand exposure. Matomo has a specific function for tracking goals and measuring analytics.

    Using a combination of UBA and data metrics will produce the most effective conversions. 

    For example, a customer reaching the payment confirmation page is a common objective to measure conversions. However, it is only tracked if they actually complete the action. Measuring on-page customer activity with heatmaps shows why they do or do not convert so you can fix issues. 

    Final thoughts on user behaviour analytics 

    User behavioural analytics (UBA) provide a unique and in-depth insight into your customers and their needs. Unlike traditional data metrics that track completed actions, UBA like heatmaps show you what happens in between each action and help fix any critical issues. 

    Heatmaps are your secret weapon to improving website performance while staying customer-centric ! 

    Want to know how heatmap analytics increase conversions and improve customer experience without spending more on traffic or marketing ? Check out some of the other in depth guides below. 

    The Ultimate Guide to Heatmap Software

    10 Proven Ways Heatmap Software Improves Website Conversions

    Heatmap Video

    Session Recording Video

  • No sounds on Apple devices after encoding videos [migrated]

    15 décembre 2013, par Ricardo

    I'm having a problem setting up a media server.
    Everything works just great except the sound of Apple devices, I'm not sure if that's something with "mute" on iOS or our codecs are just not compatible with iOS.

    OS :

    Ubuntu 12.04

    FFMPEG Config :

    ffmpeg version 0.10.8-7:0.10.8-1~lucid1 Copyright 2000-2013 the FFmpeg developers
    
  built on Sep  5 2013 19:50:14 with gcc 4.4.3
    
  configuration: --arch=amd64 --disable-stripping --enable-pthreads --enable-runtime-cpudetect --extra-version='7:0.10.8-1~lucid1' --libdir=/usr/lib --prefix=/usr --enable-bzlib --enable-libdc1394 --enable-libfreetype --enable-frei0r --enable-gnutls --enable-libgsm --enable-libmp3lame --enable-libopenjpeg --enable-libpulse --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-vdpau --enable-libvorbis --enable-libvpx --enable-zlib --enable-gpl --enable-postproc --enable-libcdio --enable-x11grab --enable-libx264 --shlibdir=/usr/lib --enable-shared --disable-static
    
  avcodec     configuration: --arch=amd64 --disable-stripping --enable-pthreads --enable-runtime-cpudetect --extra-version='7:0.10.8-1~lucid1' --libdir=/usr/lib --prefix=/usr --enable-bzlib --enable-libdc1394 --enable-libfreetype --enable-frei0r --enable-gnutls --enable-libgsm --enable-libmp3lame --enable-libopenjpeg --enable-libpulse --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-vdpau --enable-libvorbis --enable-libvpx --enable-zlib --enable-gpl --enable-postproc --enable-libcdio --enable-x11grab --enable-libx264 --shlibdir=/usr/lib --enable-shared --disable-static --enable-version3 --enable-libopencore-amrnb --enable-libopencore-amrwb
    
  libavutil      51. 35.100 / 51. 35.100
    
  libavcodec     53. 61.100 / 53. 61.100
    
  libavformat    53. 32.100 / 53. 32.100
    
  libavdevice    53.  4.100 / 53.  4.100
    
  libavfilter     2. 61.100 /  2. 61.100
    
  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

    Codecs :

     D..... = Decoding supported
    
 .E.... = Encoding supported
    
 ..V... = Video codec
    
 ..A... = Audio codec
    
 ..S... = Subtitle codec
    
 ...S.. = Supports draw_horiz_band
    
 ....D. = Supports direct rendering method 1
    
 .....T = Supports weird frame truncation
    
 ------
    
 D V D  4xm             4X Movie
    
 D V D  8bps            QuickTime 8BPS video
    
 D A D  8svx_exp        8SVX exponential
    
 D A D  8svx_fib        8SVX fibonacci
    
  EV    a64multi        Multicolor charset for Commodore 64
    
  EV    a64multi5       Multicolor charset for Commodore 64, extended with 5th color (colram)
    
 DEA D  aac             Advanced Audio Coding
    
 D A D  aac_latm        AAC LATM (Advanced Audio Codec LATM syntax)
    
 D V D  aasc            Autodesk RLE
    
 DEA D  ac3             ATSC A/52A (AC-3)
    
  EA    ac3_fixed       ATSC A/52A (AC-3)
    
 D A D  adpcm_4xm       ADPCM 4X Movie
    
 DEA D  adpcm_adx       SEGA CRI ADX ADPCM
    
 D A D  adpcm_ct        ADPCM Creative Technology
    
 D A D  adpcm_ea        ADPCM Electronic Arts
    
 D A D  adpcm_ea_maxis_xa ADPCM Electronic Arts Maxis CDROM XA
    
 D A D  adpcm_ea_r1     ADPCM Electronic Arts R1
    
 D A D  adpcm_ea_r2     ADPCM Electronic Arts R2
    
 D A D  adpcm_ea_r3     ADPCM Electronic Arts R3
    
 D A D  adpcm_ea_xas    ADPCM Electronic Arts XAS
    
 D A D  adpcm_ima_amv   ADPCM IMA AMV
    
 D A D  adpcm_ima_apc   ADPCM IMA CRYO APC
    
 D A D  adpcm_ima_dk3   ADPCM IMA Duck DK3
    
 D A D  adpcm_ima_dk4   ADPCM IMA Duck DK4
    
 D A D  adpcm_ima_ea_eacs ADPCM IMA Electronic Arts EACS
    
 D A D  adpcm_ima_ea_sead ADPCM IMA Electronic Arts SEAD
    
 D A D  adpcm_ima_iss   ADPCM IMA Funcom ISS
    
 DEA D  adpcm_ima_qt    ADPCM IMA QuickTime
    
 D A D  adpcm_ima_smjpeg ADPCM IMA Loki SDL MJPEG
    
 DEA D  adpcm_ima_wav   ADPCM IMA WAV
    
 D A D  adpcm_ima_ws    ADPCM IMA Westwood
    
 DEA D  adpcm_ms        ADPCM Microsoft
    
 D A D  adpcm_sbpro_2   ADPCM Sound Blaster Pro 2-bit
    
 D A D  adpcm_sbpro_3   ADPCM Sound Blaster Pro 2.6-bit
    
 D A D  adpcm_sbpro_4   ADPCM Sound Blaster Pro 4-bit
    
 DEA D  adpcm_swf       ADPCM Shockwave Flash
    
 D A D  adpcm_thp       ADPCM Nintendo Gamecube THP
    
 D A D  adpcm_xa        ADPCM CDROM XA
    
 DEA D  adpcm_yamaha    ADPCM Yamaha
    
 DEA D  alac            ALAC (Apple Lossless Audio Codec)
    
 D A D  als             MPEG-4 Audio Lossless Coding (ALS)
    
 D A D  amrnb           Adaptive Multi-Rate NarrowBand
    
 D A D  amrwb           Adaptive Multi-Rate WideBand
    
 DEV    amv             AMV Video
    
 D V D  anm             Deluxe Paint Animation
    
 D V D  ansi            ASCII/ANSI art
    
 D A D  ape             Monkey's Audio
    
 DES    ass             Advanced SubStation Alpha subtitle
    
 DEV D  asv1            ASUS V1
    
 DEV D  asv2            ASUS V2
    
 D A D  atrac1          Atrac 1 (Adaptive TRansform Acoustic Coding)
    
 D A D  atrac3          Atrac 3 (Adaptive TRansform Acoustic Coding 3)
    
 D V D  aura            Auravision AURA
    
 D V D  aura2           Auravision Aura 2
    
 DEV D  avrp            Avid 1:1 10-bit RGB Packer
    
 D V D  avs             AVS (Audio Video Standard) video
    
 D V D  bethsoftvid     Bethesda VID video
    
 D V D  bfi             Brute Force & Ignorance
    
 D A D  binkaudio_dct   Bink Audio (DCT)
    
 D A D  binkaudio_rdft  Bink Audio (RDFT)
    
 D V    binkvideo       Bink video
    
 D V D  bintext         Binary text
    
 DEV D  bmp             BMP image
    
 D A D  bmv_audio       Discworld II BMV audio
    
 D V    bmv_video       Discworld II BMV video
    
 D V D  c93             Interplay C93
    
 D V D  camstudio       CamStudio
    
 D V D  camtasia        TechSmith Screen Capture Codec
    
 D V D  cavs            Chinese AVS video (AVS1-P2, JiZhun profile)
    
 D V D  cdgraphics      CD Graphics video
    
 D V D  cinepak         Cinepak
    
 DEV D  cljr            Cirrus Logic AccuPak
    
 D A D  cook            COOK
    
 D V D  cyuv            Creative YUV (CYUV)
    
 DEA D  dca             DCA (DTS Coherent Acoustics)
    
 D V D  dfa             Chronomaster DFA
    
 D V    dirac           BBC Dirac VC-2
    
 DEV D  dnxhd           VC3/DNxHD
    
 DEV    dpx             DPX image
    
 D A D  dsicinaudio     Delphine Software International CIN audio
    
 D V D  dsicinvideo     Delphine Software International CIN video
    
 DES    dvbsub          DVB subtitles
    
 DES    dvdsub          DVD subtitles
    
 DEV D  dvvideo         DV (Digital Video)
    
 D V D  dxa             Feeble Files/ScummVM DXA
    
 D V D  dxtory          Dxtory
    
 DEA D  eac3            ATSC A/52 E-AC-3
    
 D V D  eacmv           Electronic Arts CMV video
    
 D V D  eamad           Electronic Arts Madcow Video
    
 D V D  eatgq           Electronic Arts TGQ video
    
 D V    eatgv           Electronic Arts TGV video
    
 D V D  eatqi           Electronic Arts TQI Video
    
 D V D  escape124       Escape 124
    
 D V D  escape130       Escape 130
    
 DEV D  ffv1            FFmpeg video codec #1
    
 DEVSD  ffvhuff         Huffyuv FFmpeg variant
    
 DEA D  flac            FLAC (Free Lossless Audio Codec)
    
 DEV D  flashsv         Flash Screen Video
    
 DEV D  flashsv2        Flash Screen Video Version 2
    
 D V D  flic            Autodesk Animator Flic video
    
 DEVSD  flv             Flash Video (FLV) / Sorenson Spark / Sorenson H.263
    
 D V D  fraps           Fraps
    
 D V D  frwu            Forward Uncompressed
    
 DEA D  g722            G.722 ADPCM
    
 DEA    g723_1          G.723.1
    
 DEA D  g726            G.726 ADPCM
    
 D A D  g729            G.729
    
 DEV D  gif             GIF (Graphics Interchange Format)
    
 D A D  gsm             GSM
    
 D A D  gsm_ms          GSM Microsoft variant
    
 DEV D  h261            H.261
    
 DEVSDT h263            H.263 / H.263-1996
    
 D VSD  h263i           Intel H.263
    
  EV    h263p           H.263+ / H.263-1998 / H.263 version 2
    
 D V D  h264            H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10
    
 D V D  h264_vdpau      H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 (VDPAU acceleration)
    
 DEVSD  huffyuv         Huffyuv / HuffYUV
    
 D V D  idcinvideo      id Quake II CIN video
    
 D V D  idf             iCEDraw text
    
 D V D  iff_byterun1    IFF ByteRun1
    
 D V D  iff_ilbm        IFF ILBM
    
 D A D  imc             IMC (Intel Music Coder)
    
 D V D  indeo2          Intel Indeo 2
    
 D V    indeo3          Intel Indeo 3
    
 D V    indeo4          Intel Indeo Video Interactive 4
    
 D V    indeo5          Intel Indeo Video Interactive 5
    
 D A D  interplay_dpcm  DPCM Interplay
    
 D V D  interplayvideo  Interplay MVE video
    
 DEV    j2k             JPEG 2000
    
 DEV D  jpegls          JPEG-LS
    
 D V D  jv              Bitmap Brothers JV video
    
 D V    kgv1            Kega Game Video
    
 D V D  kmvc            Karl Morton's video codec
    
 D V D  lagarith        Lagarith lossless
    
 DEA D  libgsm          libgsm GSM
    
 DEA D  libgsm_ms       libgsm GSM Microsoft variant
    
  EA    libmp3lame      libmp3lame MP3 (MPEG audio layer 3)
    
 DEA D  libopencore_amrnb OpenCORE Adaptive Multi-Rate (AMR) Narrow-Band
    
 D A D  libopencore_amrwb OpenCORE Adaptive Multi-Rate (AMR) Wide-Band
    
 DEV D  libopenjpeg     OpenJPEG based JPEG 2000 encoder
    
 DEV    libschroedinger libschroedinger Dirac 2.2
    
 DEA D  libspeex        libspeex Speex
    
  EV    libtheora       libtheora Theora
    
  EA    libvorbis       libvorbis Vorbis
    
 DEV    libvpx          libvpx VP8
    
  EV    libx264         libx264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10
    
  EV    libx264rgb      libx264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 RGB
    
  EV    ljpeg           Lossless JPEG
    
 D V D  loco            LOCO
    
 D A D  mace3           MACE (Macintosh Audio Compression/Expansion) 3:1
    
 D A D  mace6           MACE (Macintosh Audio Compression/Expansion) 6:1
    
 D V D  mdec            Sony PlayStation MDEC (Motion DECoder)
    
 D V D  mimic           Mimic
    
 DEV D  mjpeg           MJPEG (Motion JPEG)
    
 D V D  mjpegb          Apple MJPEG-B
    
 D A D  mlp             MLP (Meridian Lossless Packing)
    
 D V D  mmvideo         American Laser Games MM Video
    
 D V D  motionpixels    Motion Pixels video
    
 D A D  mp1             MP1 (MPEG audio layer 1)
    
 D A D  mp1float        MP1 (MPEG audio layer 1)
    
 DEA D  mp2             MP2 (MPEG audio layer 2)
    
 D A D  mp2float        MP2 (MPEG audio layer 2)
    
 D A D  mp3             MP3 (MPEG audio layer 3)
    
 D A D  mp3adu          ADU (Application Data Unit) MP3 (MPEG audio layer 3)
    
 D A D  mp3adufloat     ADU (Application Data Unit) MP3 (MPEG audio layer 3)
    
 D A D  mp3float        MP3 (MPEG audio layer 3)
    
 D A D  mp3on4          MP3onMP4
    
 D A D  mp3on4float     MP3onMP4
    
 D A D  mpc7            Musepack SV7
    
 D A D  mpc8            Musepack SV8
    
 DEVSDT mpeg1video      MPEG-1 video
    
 D V DT mpeg1video_vdpau MPEG-1 video (VDPAU acceleration)
    
 DEVSDT mpeg2video      MPEG-2 video
    
 DEVSDT mpeg4           MPEG-4 part 2
    
 D V DT mpeg4_vdpau     MPEG-4 part 2 (VDPAU)
    
 D VSDT mpegvideo       MPEG-1 video
    
 D V DT mpegvideo_vdpau MPEG-1/2 video (VDPAU acceleration)
    
 D VSDT mpegvideo_xvmc  MPEG-1/2 video XvMC (X-Video Motion Compensation)
    
 DEVSD  msmpeg4         MPEG-4 part 2 Microsoft variant version 3
    
 D VSD  msmpeg4v1       MPEG-4 part 2 Microsoft variant version 1
    
 DEVSD  msmpeg4v2       MPEG-4 part 2 Microsoft variant version 2
    
 D V D  msrle           Microsoft RLE
    
 DEV D  msvideo1        Microsoft Video-1
    
 D V D  mszh            LCL (LossLess Codec Library) MSZH
    
 D V D  mxpeg           Mobotix MxPEG video
    
 DEA D  nellymoser      Nellymoser Asao
    
 D V D  nuv             NuppelVideo/RTJPEG
    
 DEV D  pam             PAM (Portable AnyMap) image
    
 DEV D  pbm             PBM (Portable BitMap) image
    
 DEA D  pcm_alaw        PCM A-law
    
 D A D  pcm_bluray      PCM signed 16|20|24-bit big-endian for Blu-ray media
    
 D A D  pcm_dvd         PCM signed 20|24-bit big-endian
    
 DEA D  pcm_f32be       PCM 32-bit floating point big-endian
    
 DEA D  pcm_f32le       PCM 32-bit floating point little-endian
    
 DEA D  pcm_f64be       PCM 64-bit floating point big-endian
    
 DEA D  pcm_f64le       PCM 64-bit floating point little-endian
    
 D A D  pcm_lxf         PCM signed 20-bit little-endian planar
    
 DEA D  pcm_mulaw       PCM mu-law
    
 DEA D  pcm_s16be       PCM signed 16-bit big-endian
    
 DEA D  pcm_s16le       PCM signed 16-bit little-endian
    
 D A D  pcm_s16le_planar PCM 16-bit little-endian planar
    
 DEA D  pcm_s24be       PCM signed 24-bit big-endian
    
 DEA D  pcm_s24daud     PCM D-Cinema audio signed 24-bit
    
 DEA D  pcm_s24le       PCM signed 24-bit little-endian
    
 DEA D  pcm_s32be       PCM signed 32-bit big-endian
    
 DEA D  pcm_s32le       PCM signed 32-bit little-endian
    
 DEA D  pcm_s8          PCM signed 8-bit
    
 D A D  pcm_s8_planar   PCM signed 8-bit planar
    
 DEA D  pcm_u16be       PCM unsigned 16-bit big-endian
    
 DEA D  pcm_u16le       PCM unsigned 16-bit little-endian
    
 DEA D  pcm_u24be       PCM unsigned 24-bit big-endian
    
 DEA D  pcm_u24le       PCM unsigned 24-bit little-endian
    
 DEA D  pcm_u32be       PCM unsigned 32-bit big-endian
    
 DEA D  pcm_u32le       PCM unsigned 32-bit little-endian
    
 DEA D  pcm_u8          PCM unsigned 8-bit
    
 D A D  pcm_zork        PCM Zork
    
 DEV D  pcx             PC Paintbrush PCX image
    
 DEV D  pgm             PGM (Portable GrayMap) image
    
 DEV D  pgmyuv          PGMYUV (Portable GrayMap YUV) image
    
 D S    pgssub          HDMV Presentation Graphic Stream subtitles
    
 D V D  pictor          Pictor/PC Paint
    
 DEV D  png             PNG image
    
 DEV D  ppm             PPM (Portable PixelMap) image
    
 DEV D  prores          Apple ProRes
    
 D V D  prores_lgpl     Apple ProRes (iCodec Pro)
    
 D V D  ptx             V.Flash PTX image
    
 D A D  qcelp           QCELP / PureVoice
    
 D A D  qdm2            QDesign Music Codec 2
    
 D V D  qdraw           Apple QuickDraw
    
 D V D  qpeg            Q-team QPEG
    
 DEV D  qtrle           QuickTime Animation (RLE) video
    
 DEV D  r10k            AJA Kona 10-bit RGB Codec
    
 DEV D  r210            Uncompressed RGB 10-bit
    
 DEV    rawvideo        raw video
    
 DEA D  real_144        RealAudio 1.0 (14.4K) encoder
    
 D A D  real_288        RealAudio 2.0 (28.8K)
    
 D V D  rl2             RL2 video
    
 DEA D  roq_dpcm        id RoQ DPCM
    
 DEV D  roqvideo        id RoQ video
    
 D V D  rpza            QuickTime video (RPZA)
    
 DEV D  rv10            RealVideo 1.0
    
 DEV D  rv20            RealVideo 2.0
    
 D V D  rv30            RealVideo 3.0
    
 D V D  rv40            RealVideo 4.0
    
 D A D  s302m           SMPTE 302M
    
 DEV    sgi             SGI image
    
 D A D  shorten         Shorten
    
 D A D  sipr            RealAudio SIPR / ACELP.NET
    
 D A D  smackaud        Smacker audio
    
 D V D  smackvid        Smacker video
    
 D V D  smc             QuickTime Graphics (SMC)
    
 DEV D  snow            Snow
    
 D A D  sol_dpcm        DPCM Sol
    
 DEA D  sonic           Sonic
    
  EA    sonicls         Sonic lossless
    
 D V D  sp5x            Sunplus JPEG (SP5X)
    
 DES    srt             SubRip subtitle
    
 D V D  sunrast         Sun Rasterfile image
    
 DEV D  svq1            Sorenson Vector Quantizer 1 / Sorenson Video 1 / SVQ1
    
 D VSD  svq3            Sorenson Vector Quantizer 3 / Sorenson Video 3 / SVQ3
    
 DEV D  targa           Truevision Targa image
    
 D VSD  theora          Theora
    
 D V D  thp             Nintendo Gamecube THP video
    
 D V D  tiertexseqvideo Tiertex Limited SEQ video
    
 DEV D  tiff            TIFF image
    
 D V D  tmv             8088flex TMV
    
 D A D  truehd          TrueHD
    
 D V D  truemotion1     Duck TrueMotion 1.0
    
 D V D  truemotion2     Duck TrueMotion 2.0
    
 D A D  truespeech      DSP Group TrueSpeech
    
 D A D  tta             True Audio (TTA)
    
 D A D  twinvq          VQF TwinVQ
    
 D V D  txd             Renderware TXD (TeXture Dictionary) image
    
 D V D  ultimotion      IBM UltiMotion
    
 D V D  utvideo         Ut Video
    
 DEV D  v210            Uncompressed 4:2:2 10-bit
    
 D V D  v210x           Uncompressed 4:2:2 10-bit
    
 DEV D  v308            Uncompressed packed 4:4:4
    
 DEV D  v410            Uncompressed 4:4:4 10-bit
    
 D V    vb              Beam Software VB
    
 D V D  vble            VBLE Lossless Codec
    
 D V D  vc1             SMPTE VC-1
    
 D V D  vc1_vdpau       SMPTE VC-1 VDPAU
    
 D V D  vc1image        Windows Media Video 9 Image v2
    
 D V D  vcr1            ATI VCR1
    
 D A D  vmdaudio        Sierra VMD audio
    
 D V D  vmdvideo        Sierra VMD video
    
 D V D  vmnc            VMware Screen Codec / VMware Video
    
 DEA D  vorbis          Vorbis
    
 D VSD  vp3             On2 VP3
    
 D V D  vp5             On2 VP5
    
 D V D  vp6             On2 VP6
    
 D V D  vp6a            On2 VP6 (Flash version, with alpha channel)
    
 D V D  vp6f            On2 VP6 (Flash version)
    
 D V D  vp8             On2 VP8
    
 D V D  vqavideo        Westwood Studios VQA (Vector Quantized Animation) video
    
 D A D  wavesynth       Wave synthesis pseudo-codec
    
 D A D  wavpack         WavPack
    
 D A    wmalossless     Windows Media Audio 9 Lossless
    
 D A D  wmapro          Windows Media Audio 9 Professional
    
 DEA D  wmav1           Windows Media Audio 1
    
 DEA D  wmav2           Windows Media Audio 2
    
 D A D  wmavoice        Windows Media Audio Voice
    
 DEVSD  wmv1            Windows Media Video 7
    
 DEVSD  wmv2            Windows Media Video 8
    
 D V D  wmv3            Windows Media Video 9
    
 D V D  wmv3_vdpau      Windows Media Video 9 VDPAU
    
 D V D  wmv3image       Windows Media Video 9 Image
    
 D V D  wnv1            Winnov WNV1
    
 D A D  ws_snd1         Westwood Audio (SND1)
    
 D A D  xan_dpcm        DPCM Xan
    
 D V D  xan_wc3         Wing Commander III / Xan
    
 D V D  xan_wc4         Wing Commander IV / Xxan
    
 D V D  xbin            eXtended BINary text
    
 D V D  xl              Miro VideoXL
    
 DES    xsub            DivX subtitles (XSUB)
    
 DEV D  xwd             XWD (X Window Dump) image
    
 DEV D  y41p            Uncompressed YUV 4:1:1 12-bit
    
 D V    yop             Psygnosis YOP Video
    
 DEV D  yuv4            Uncompressed packed 4:2:0
    
 DEV D  zlib            LCL (LossLess Codec Library) ZLIB
    
 DEV D  zmbv            Zip Motion Blocks Video

    Library we use to convert :

    public function getAvailableAudioCodecs()
    
    {
    
        return array('libvo_aacenc', 'libfaac', 'libmp3lame');
    
    }

    By default I use 'libmp3lame' now because 'libfaac' is not supported by ffmpeg
    and when Im trying to encode sound by libfaac I'm getting that codec not found

    Thanks in advance !

  • FFMPEG "Segmentation fault" with network stream source

    23 décembre 2023, par user11186466

    I use release : 4.2.2 (static) from "https://johnvansickle.com/ffmpeg/"

    



    Final code will be on "Amazon AWS lambda"

    



    Goal : use a url stream and add watermak

    



    Link to video : ​https://feoval.fr/519.mp4

    



    Link to Watermak : ​https://feoval.fr/watermark.png

    



    ./ffmpeg -i "https://feoval.fr/519.mp4" -i "./watermark.png" -filter_complex "overlay=W-w-10:H-h-10:format=rgb" -f "mp4" -movflags "frag_keyframe+empty_moov" -pix_fmt "yuv420p" test.mp4


    



    return "Segmentation fault"

    



    I have the same error on my computer and on AWS Lambda server

    



    ./ffmpeg -i "https://feoval.fr/519.mp4" -f "mp4" -movflags "frag_keyframe+empty_moov" -pix_fmt "yuv420p" test.mp4


    



    work (but not watermak)

    



    ./ffmpeg -i "./519.mp4" -i "./watermark.png" -filter_complex "overlay=W-w-10:H-h-10:format=rgb" -f "mp4" -movflags "frag_keyframe+empty_moov" -pix_fmt "yuv420p" test.mp4


    



    work (but not with stream)

    



    Thanks you very much !

    



    Logs for the first case who return "Segmentation fault" :

    



    ...
Stream mapping:
Stream #0:0 (h264) -> overlay:main (graph 0)
Stream #1:0 (png) -> overlay:overlay (graph 0)
overlay (graph 0) -> Stream #0:0 (libx264)
Stream #0:1 -> #0:1 (aac (native) -> aac (native))
Press [q] to stop, ? for help
[libx264 @ 0x742e480] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
[libx264 @ 0x742e480] profile High, level 3.1, 4:2:0, 8-bit
[libx264 @ 0x742e480] 264 - core 159 r2991 1771b55 - H.264/MPEG-4 AVC codec - Copyleft 2003-2019 - ​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=12 lookahead_threads=2 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=25 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=1.40 aq=1:1.00
Output #0, mp4, to 'test.mp4':
Metadata:
major_brand : mp42
minor_version : 1
compatible_brands: isommp41mp42
encoder : Lavf58.29.100
Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 480x848, q=-1--1, 30 fps, 15360 tbn, 30 tbc (default)
Metadata:
encoder : Lavc58.54.100 libx264
Side data:
cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)
Metadata:
creation_time : 2020-01-13T08:54:26.000000Z
handler_name : Core Media Audio
encoder : Lavc58.54.100 aac
Segmentation fault (core dumped)


    


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