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Autres articles (47)

  • HTML5 audio and video support

    13 avril 2011, par

    MediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
    The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
    For older browsers the Flowplayer flash fallback is used.
    MediaSPIP allows for media playback on major mobile platforms with the above (...)

  • De l’upload à la vidéo finale [version standalone]

    31 janvier 2010, par

    Le chemin d’un document audio ou vidéo dans SPIPMotion est divisé en trois étapes distinctes.
    Upload et récupération d’informations de la vidéo source
    Dans un premier temps, il est nécessaire de créer un article SPIP et de lui joindre le document vidéo "source".
    Au moment où ce document est joint à l’article, deux actions supplémentaires au comportement normal sont exécutées : La récupération des informations techniques des flux audio et video du fichier ; La génération d’une vignette : extraction d’une (...)

  • Support audio et vidéo HTML5

    10 avril 2011

    MediaSPIP utilise les balises HTML5 video et audio pour la lecture de documents multimedia en profitant des dernières innovations du W3C supportées par les navigateurs modernes.
    Pour les navigateurs plus anciens, le lecteur flash Flowplayer est utilisé.
    Le lecteur HTML5 utilisé a été spécifiquement créé pour MediaSPIP : il est complètement modifiable graphiquement pour correspondre à un thème choisi.
    Ces technologies permettent de distribuer vidéo et son à la fois sur des ordinateurs conventionnels (...)

Sur d’autres sites (6355)

  • cafenc : fill in avg. packet size later if unknown

    10 juillet 2021, par Roman Beranek
    cafenc : fill in avg. packet size later if unknown

    Frame size of Opus stream was previously presumed here to be 960 samples
    
(20ms), however sizes of 120, 240, 480, 1920, and 2880 are also allowed.
    
It can also alter on a per-packet basis and even multiple frames may be
    
present in a single packet according to the specification, for the sake
    
of simplicity however, let us assume that this doesn't occur.
    

    Because the mFramesPerPacket field, representing the number of samples
    
per packet in the ffmpeg terminilogy, is the key factor in calculating
    
packet durations and all that follows from that (index, bitrate, ...),
    
it is crucial to get right.
    

    Therefore, if the packet size is not available ahead of time (as it is in
    
the case of Opus), calculate an average from the stream duration once we
    
know how many packets there are and update the filed in the header.
    • [DH] libavformat/cafenc.c

  • ffmpeg player in discord.py (python) automatically leave

    25 octobre 2018, par Rastasplif

    I have created a discord bot that on certain messages either sends back a message or plays a sound (like a soundboard)

    The crucial line of code is :

             soundboard_player = voice_client.create_ffmpeg_player("doh.mp3")
    
         soundboard_player.start()
    
         await client.send_message(message.channel, "Playing DOH...")

    This works absolutely fine but i kept trying to add the line
    after=voice_client.disconnect()
    I put this inside the ("doh.mp3", * I PUT IT HERE *) brackets.
    I wanted the bot to leave after it was done.

    When I run the code with the ’after’ statement included, the bot joins and I get the error message :

    TypeError: disconnect() takes 1 positional argument but 2 were given

    I know you can use soundboard_player.is_done() to check the status of the bot but I couldn’t figure out a way to check the status without trapping the code in a loop

    By trapping the code in the loop I cant execute a STOP command to stop it playing the song (soundbite) half way through.

    Any help with the after=voice_client.disconnect() command for the ffmpeg player
    or a creative way to periodically check the status without getting trapped in the loop ?

  • ffplay - how to have video and audio waveform [duplicate]

    19 février 2018, par francis

    This question already has an answer here :

    I’ve been trying out various commands trying to figure out how to have a stack of video and audio waveform according to : https://trac.ffmpeg.org/wiki/FancyFilteringExamples#waveform

    Video only :

    ffplay -i abc.mp4 -vf "split[a][b];[a]waveform=e=1,split=1[c];[c]crop=in_w:16:0:0,lutyuv=y=val:v=180[high]; [b][high]vstack=2"

    Audio only :

    ffplay -f lavfi 'amovie=april.flac,asplit=2[out1][a]; [a]showwaves=s=640x240[waves]; [waves] vstack[out0]'

    But there isn’t any that combines and shows the top half as video and bottom half as the audio waveform. Is it possible ?

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