Recherche avancée

Médias (1)

Mot : - Tags -/wave

Autres articles (99)

  • 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.

  • L’agrémenter visuellement

    10 avril 2011

    MediaSPIP est basé sur un système de thèmes et de squelettes. Les squelettes définissent le placement des informations dans la page, définissant un usage spécifique de la plateforme, et les thèmes l’habillage graphique général.
    Chacun peut proposer un nouveau thème graphique ou un squelette et le mettre à disposition de la communauté.

Sur d’autres sites (13375)

  • Implementing Live Streaming Webinar Architecture - Need Guidance

    21 septembre 2023, par vishnugpl

    Question : I'm working on a project to implement a live streaming webinar platform, and I'm looking for guidance on the architecture and technologies to use. I have some specific requirements and constraints, and I'd appreciate any advice or pointers on how to get started.

    


    Context :
I'm tasked with building a live streaming webinar platform from scratch for our organization. Here are some key requirements and constraints :

    


      


    1. Live Video Streaming : We need to support live video streaming for
webinars, workshops, and conferences. Low latency is crucial for
real-time interaction between presenters and attendees.

      


      2. 


    2. Scalability : The platform should be able to handle a large number of concurrent attendees, potentially thousands or more,
without compromising performance.

      


      3. 


    3. Security : Security is a top priority. We need to ensure that only authorized users can access the webinars, and we must protect
against unauthorized recording or distribution of the content.

      


      4. 


    4. User Interaction : Attendees should be able to ask questions, participate in polls, and interact with presenters in real-time.

      


      5. 


    5. Recording and Playback : We also want to provide recorded versions of past webinars for on-demand viewing (HLS).

      


      6. 


    


    Current Tech Stack :

    


      

    • Frontend : React

      • 


    • Backend : Node.js with Express

      • 


    • Database : MongoDB

      • 


    • Cloud Hosting : AWS

      • 


    


    Questions :

    


      


    • What technologies or services are best suited for handling live video streaming with low latency ?

      


      • 


    • How can I ensure scalability in terms of both video streaming and handling a large number of users ?

      


      • 


    • What security measures should I consider to protect the content and user data ?

      


      • 


    • Are there any recommended frameworks or libraries for building interactive features like real-time chat and polling ?

      


      • 


    • What's the best approach for recording and serving on-demand webinar content ?

      


      • 


    


    Additional Information :

    


      


    • Budget is a consideration, so cost-effective solutions are preferred.

      


      • 


    • Any open-source or third-party tools that can simplify development are welcome.

      


      • 


    • I have experience with AWS, but I'm open to other cloud providers if they offer advantages for this project.

      


      • 


    


  • Please help me figure out why ffmpeg can't convert this .ts to .mp4

    10 janvier 2023, par cpo

    I have ffmpeg running on my Sinology NAS, and would like to use it to convert DVR-recorded .ts videos into .mp4 format. I don't fully understand this stuff, and have researched to no avail. Perhaps someone who has some expertise in this area can quickly help me get up and running. Thanks !

    


    Here is the command I am running with result :

    


    $ ffmpeg -analyzeduration 2147483647 -probesize 2147483647 -i 'video.ts' -acodec -vcodec copy 'video.mp4'

ffmpeg version 4.1.8 Copyright (c) 2000-2021 the FFmpeg developers
  built with gcc 8.5.0 (GCC)
  configuration: --prefix=/usr --incdir='${prefix}/include/ffmpeg' --arch=i686 --target-os=linux --cross-prefix=/usr/local/x86_64-pc-linux-gnu/bin/x86_64-pc-linux-gnu- --enable-cross-compile --enable-optimizations --enable-pic --enable-gpl --enable-shared --disable-static --disable-stripping --enable-version3 --enable-encoders --enable-pthreads --disable-protocols --disable-protocol=rtp --enable-protocol=file --enable-protocol=pipe --disable-muxer=image2 --disable-muxer=image2pipe --disable-swscale-alpha --disable-ffplay --disable-ffprobe --disable-doc --disable-devices --disable-bzlib --disable-altivec --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libmp3lame --disable-vaapi --disable-cuvid --disable-nvenc --disable-decoder=aac --disable-decoder=aac_fixed --disable-encoder=aac --disable-decoder=amrnb --disable-decoder=ac3 --disable-decoder=ac3_fixed --disable-encoder=zmbv --disable-encoder=dca --disable-decoder=dca --disable-encoder=ac3 --disable-encoder=ac3_fixed --disable-encoder=eac3 --disable-decoder=eac3 --disable-encoder=truehd --disable-decoder=truehd --disable-encoder=hevc_vaapi --disable-decoder=hevc --disable-muxer=hevc --disable-demuxer=hevc --disable-parser=hevc --disable-bsf=hevc_mp4toannexb --x86asmexe=yasm --cc=/usr/local/x86_64-pc-linux-gnu/bin/x86_64-pc-linux-gnu-wrap-gcc --enable-yasm --enable-libx264 --enable-encoder=libx264
  libavutil      56. 22.100 / 56. 22.100
  libavcodec     58. 35.100 / 58. 35.100
  libavformat    58. 20.100 / 58. 20.100
  libavdevice    58.  5.100 / 58.  5.100
  libavfilter     7. 40.101 /  7. 40.101
  libswscale      5.  3.100 /  5.  3.100
  libswresample   3.  3.100 /  3.  3.100
  libpostproc    55.  3.100 / 55.  3.100
[mpegts @ 0x5591c4feb4c0] Could not find codec parameters for stream 1 (Audio: aac ([15][0][0][0] / 0x000F), 0 channels, 199 kb/s): unspecified sample rate
Consider increasing the value for the 'analyzeduration' and 'probesize' options
Input #0, mpegts, from 'video.ts':
  Duration: 02:01:58.77, start: 1.405122, bitrate: 4094 kb/s
  Program 1 
    Metadata:
      service_name    : Service01
      service_provider: FFmpeg
    Stream #0:0[0x100]: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p(progressive), 1920x1080 [SAR 1:1 DAR 16:9], Closed Captions, 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc
    Stream #0:1[0x101]: Audio: aac ([15][0][0][0] / 0x000F), 0 channels, 199 kb/s
[NULL @ 0x5591c6034980] Unable to find a suitable output format for 'copy'
copy: Invalid argument


    


    Here is the information from video.ts as displayed in VLC :

    


    Media information

    


    It's possible I just don't have the right encoders included with my ffmpeg packaged (obtained from https://synocommunity.com/package/ffmpeg). Here are the audio encoders that it appears I have.

    


    A..... adpcm_adx            SEGA CRI ADX ADPCM
 A..... g722                 G.722 ADPCM (codec adpcm_g722)
 A..... g726                 G.726 ADPCM (codec adpcm_g726)
 A..... g726le               G.726 little endian ADPCM ("right-justified") (codec adpcm_g726le)
 A..... adpcm_ima_qt         ADPCM IMA QuickTime
 A..... adpcm_ima_wav        ADPCM IMA WAV
 A..... adpcm_ms             ADPCM Microsoft
 A..... adpcm_swf            ADPCM Shockwave Flash
 A..... adpcm_yamaha         ADPCM Yamaha
 A..... alac                 ALAC (Apple Lossless Audio Codec)
 A..... libopencore_amrnb    OpenCORE AMR-NB (Adaptive Multi-Rate Narrow-Band) (codec amr_nb)
 A..... aptx                 aptX (Audio Processing Technology for Bluetooth)
 A..... aptx_hd              aptX HD (Audio Processing Technology for Bluetooth)
 A..... comfortnoise         RFC 3389 comfort noise generator
 A..... flac                 FLAC (Free Lossless Audio Codec)
 A..... g723_1               G.723.1
 A..X.. mlp                  MLP (Meridian Lossless Packing)
 A..... mp2                  MP2 (MPEG audio layer 2)
 A..... mp2fixed             MP2 fixed point (MPEG audio layer 2) (codec mp2)
 A..... libmp3lame           libmp3lame MP3 (MPEG audio layer 3) (codec mp3)
 A..... nellymoser           Nellymoser Asao
 A..X.. opus                 Opus
 A..... pcm_alaw             PCM A-law / G.711 A-law
 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_s64be            PCM signed 64-bit big-endian
 A..... pcm_s64le            PCM signed 64-bit little-endian
 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
 A..... pcm_vidc             PCM Archimedes VIDC
 A..... real_144             RealAudio 1.0 (14.4K) (codec ra_144)
 A..... roq_dpcm             id RoQ DPCM
 A..X.. s302m                SMPTE 302M
 A..... sbc                  SBC (low-complexity subband codec)
 A..X.. sonic                Sonic
 A..X.. sonicls              Sonic lossless
 A..... tta                  TTA (True Audio)
 A..X.. vorbis               Vorbis
 A..... wavpack              WavPack
 A..... wmav1                Windows Media Audio 1
 A..... wmav2                Windows Media Audio 2


    


  • Why ffmpeg can't convert this .ts to .mp4

    10 janvier 2023, par cpo

    I have ffmpeg running on my Synology NAS, and would like to use it to convert DVR-recorded .ts videos into .mp4 format. I don't fully understand this stuff, and have researched to no avail.

    


    Here is the command I am running with result :

    


    $ ffmpeg -analyzeduration 2147483647 -probesize 2147483647 -i 'video.ts' -acodec -vcodec copy 'video.mp4'

ffmpeg version 4.1.8 Copyright (c) 2000-2021 the FFmpeg developers
  built with gcc 8.5.0 (GCC)
  configuration: --prefix=/usr --incdir='${prefix}/include/ffmpeg' --arch=i686 --target-os=linux --cross-prefix=/usr/local/x86_64-pc-linux-gnu/bin/x86_64-pc-linux-gnu- --enable-cross-compile --enable-optimizations --enable-pic --enable-gpl --enable-shared --disable-static --disable-stripping --enable-version3 --enable-encoders --enable-pthreads --disable-protocols --disable-protocol=rtp --enable-protocol=file --enable-protocol=pipe --disable-muxer=image2 --disable-muxer=image2pipe --disable-swscale-alpha --disable-ffplay --disable-ffprobe --disable-doc --disable-devices --disable-bzlib --disable-altivec --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libmp3lame --disable-vaapi --disable-cuvid --disable-nvenc --disable-decoder=aac --disable-decoder=aac_fixed --disable-encoder=aac --disable-decoder=amrnb --disable-decoder=ac3 --disable-decoder=ac3_fixed --disable-encoder=zmbv --disable-encoder=dca --disable-decoder=dca --disable-encoder=ac3 --disable-encoder=ac3_fixed --disable-encoder=eac3 --disable-decoder=eac3 --disable-encoder=truehd --disable-decoder=truehd --disable-encoder=hevc_vaapi --disable-decoder=hevc --disable-muxer=hevc --disable-demuxer=hevc --disable-parser=hevc --disable-bsf=hevc_mp4toannexb --x86asmexe=yasm --cc=/usr/local/x86_64-pc-linux-gnu/bin/x86_64-pc-linux-gnu-wrap-gcc --enable-yasm --enable-libx264 --enable-encoder=libx264
  libavutil      56. 22.100 / 56. 22.100
  libavcodec     58. 35.100 / 58. 35.100
  libavformat    58. 20.100 / 58. 20.100
  libavdevice    58.  5.100 / 58.  5.100
  libavfilter     7. 40.101 /  7. 40.101
  libswscale      5.  3.100 /  5.  3.100
  libswresample   3.  3.100 /  3.  3.100
  libpostproc    55.  3.100 / 55.  3.100
[mpegts @ 0x5591c4feb4c0] Could not find codec parameters for stream 1 (Audio: aac ([15][0][0][0] / 0x000F), 0 channels, 199 kb/s): unspecified sample rate
Consider increasing the value for the 'analyzeduration' and 'probesize' options
Input #0, mpegts, from 'video.ts':
  Duration: 02:01:58.77, start: 1.405122, bitrate: 4094 kb/s
  Program 1 
    Metadata:
      service_name    : Service01
      service_provider: FFmpeg
    Stream #0:0[0x100]: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p(progressive), 1920x1080 [SAR 1:1 DAR 16:9], Closed Captions, 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc
    Stream #0:1[0x101]: Audio: aac ([15][0][0][0] / 0x000F), 0 channels, 199 kb/s
[NULL @ 0x5591c6034980] Unable to find a suitable output format for 'copy'
copy: Invalid argument


    


    Here is the information from video.ts as displayed in VLC :

    


    Media information

    


    It's possible I just don't have the right encoders included with my ffmpeg packaged (obtained from https://synocommunity.com/package/ffmpeg). Here are the audio encoders that it appears I have.

    


    A..... adpcm_adx            SEGA CRI ADX ADPCM
 A..... g722                 G.722 ADPCM (codec adpcm_g722)
 A..... g726                 G.726 ADPCM (codec adpcm_g726)
 A..... g726le               G.726 little endian ADPCM ("right-justified") (codec adpcm_g726le)
 A..... adpcm_ima_qt         ADPCM IMA QuickTime
 A..... adpcm_ima_wav        ADPCM IMA WAV
 A..... adpcm_ms             ADPCM Microsoft
 A..... adpcm_swf            ADPCM Shockwave Flash
 A..... adpcm_yamaha         ADPCM Yamaha
 A..... alac                 ALAC (Apple Lossless Audio Codec)
 A..... libopencore_amrnb    OpenCORE AMR-NB (Adaptive Multi-Rate Narrow-Band) (codec amr_nb)
 A..... aptx                 aptX (Audio Processing Technology for Bluetooth)
 A..... aptx_hd              aptX HD (Audio Processing Technology for Bluetooth)
 A..... comfortnoise         RFC 3389 comfort noise generator
 A..... flac                 FLAC (Free Lossless Audio Codec)
 A..... g723_1               G.723.1
 A..X.. mlp                  MLP (Meridian Lossless Packing)
 A..... mp2                  MP2 (MPEG audio layer 2)
 A..... mp2fixed             MP2 fixed point (MPEG audio layer 2) (codec mp2)
 A..... libmp3lame           libmp3lame MP3 (MPEG audio layer 3) (codec mp3)
 A..... nellymoser           Nellymoser Asao
 A..X.. opus                 Opus
 A..... pcm_alaw             PCM A-law / G.711 A-law
 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_s64be            PCM signed 64-bit big-endian
 A..... pcm_s64le            PCM signed 64-bit little-endian
 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
 A..... pcm_vidc             PCM Archimedes VIDC
 A..... real_144             RealAudio 1.0 (14.4K) (codec ra_144)
 A..... roq_dpcm             id RoQ DPCM
 A..X.. s302m                SMPTE 302M
 A..... sbc                  SBC (low-complexity subband codec)
 A..X.. sonic                Sonic
 A..X.. sonicls              Sonic lossless
 A..... tta                  TTA (True Audio)
 A..X.. vorbis               Vorbis
 A..... wavpack              WavPack
 A..... wmav1                Windows Media Audio 1
 A..... wmav2                Windows Media Audio 2


    


Navigation