Recherche avancée

Médias (2)

Mot : - Tags -/media

Autres articles (100)

  • 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 (...)

  • 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 (...)

  • MediaSPIP v0.2

    21 juin 2013, par

    MediaSPIP 0.2 is the first MediaSPIP stable release.
    Its official release date is June 21, 2013 and is announced here.
    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 (...)

Sur d’autres sites (10483)

  • Arecord->FFMPEG works but FFMPEG w/ ALSA stutters ?

    7 février 2017, par user2989813

    I am trying to stream audio from my Pi Zero and my I2s MEMS mic. I would like to stream using FFMPEG and ALSA (which I have already compiled) but I’m running into stuttering issues.

    1. FFMPEG + ALSA

      ~/special/ffmpeg/ffmpeg -report -f alsa -ar 48000 -ac 2 -acodec pcm_s32le -i mic_sv -f lavfi -i testsrc -c:v h264_omx -c:a aac -ab 32k -bufsize 32k -f flv rtmp://209.85.230.23/live2/KEY

    This results in constant stuttering and choppiness.

    1. Arecord piped directly to FFMPEG

      arecord -Dmic_sv -c2 -r48000 -fS32_LE | ~/special/ffmpeg/ffmpeg -report -acodec pcm_s32le -i - -f lavfi -i testsrc -c:v h264_omx  -acodec aac -ab 32k -bufsize 32k -f flv rtmp://209.85.230.23/live2/KEY

    This results in a coherent audio stream, but with skipping every 5 seconds or so.

    1. Arecord recorded to a wav file, piped into FFMPEG

      arecord -Dmic_sv -c2 -r48000 -fS32_LE -twav temp.v &
      ~/special/ffmpeg/ffmpeg -report -re -i temp.v -f lavfi -i testsrc -c:v h264_omx -ac 2 -acodec aac -ab 32k -bufsize 32k -async 2 -f flv rtmp://209.85.230.23/live2/KEY

    This results in a perfect audio stream.

    I don’t know why #3 works but #2 and #1 cause problems. Any suggestions ?

  • Why do I get a black box when I tile pictures with -filter_complex tile=2x1 in FFmpeg ?

    19 juin 2016, par Mateusz Piotrowski

    As I was trying to write a script (which attempts to join two pictures eventually) using FFmpeg I came across a very weird behaviour.

    I’ve found a command in an accepted answer for the very same problem I had (How to join two image into one by ffmpeg ?) :

    ffmpeg -i a.jpg -i b.jpg -filter_complex scale=120:-1,tile=2x1 output.jpg

    • Input : a.jpg, b.jpg

      a.jpg b.jpg

    • Output : output.jpg

      output.jpg

    What happened to the B cat ? Why is it missing from the output image ? I couldn’t find any information why tile=2x1 behaves like this.

  • avcodec/dsputil/huffyuv : move diff int16 and add int16 to dsputil

    20 janvier 2014, par Michael Niedermayer
    avcodec/dsputil/huffyuv : move diff int16 and add int16 to dsputil

    This also fixes masking the bits
    

    Signed-off-by : Michael Niedermayer <michaelni@gmx.at>
    • [DH] libavcodec/dsputil.c
    • [DH] libavcodec/dsputil.h
    • [DH] libavcodec/huffyuvdec.c
    • [DH] libavcodec/huffyuvenc.c

Navigation