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Autres articles (22)

  • Websites made ​​with MediaSPIP

    2 mai 2011, par

    This page lists some websites based on MediaSPIP.

  • Creating farms of unique websites

    13 avril 2011, par

    MediaSPIP platforms can be installed as a farm, with a single "core" hosted on a dedicated server and used by multiple websites.
    This allows (among other things) : implementation costs to be shared between several different projects / individuals rapid deployment of multiple unique sites creation of groups of like-minded sites, making it possible to browse media in a more controlled and selective environment than the major "open" (...)

  • Supporting all media types

    13 avril 2011, par

    Unlike most software and media-sharing platforms, MediaSPIP aims to manage as many different media types as possible. The following are just a few examples from an ever-expanding list of supported formats : images : png, gif, jpg, bmp and more audio : MP3, Ogg, Wav and more video : AVI, MP4, OGV, mpg, mov, wmv and more text, code and other data : OpenOffice, Microsoft Office (Word, PowerPoint, Excel), web (html, CSS), LaTeX, Google Earth and (...)

Sur d’autres sites (4692)

  • Gstreamer, x264enc "Redistribute latency..." error

    20 août 2021, par Jason

    I'm trying to setup a video pipeline with very limited bandwidth. I was able to do it with two raspberry pis using the below lines. The first is for the camera pi and the second is to watch stream :

    


    gst-launch-1.0 rpicamsrc preview=false !  'video/x-h264, width=800, height=600, framerate=30/1' ! h264parse ! rtph264pay config-interval=1 pt=96 ! gdppay ! udpsink host=YOUR_PC_IP port=5000
gst-launch-1.0 udpsrc port=5000 ! gdpdepay ! rtph264depay ! h264parse ! avdec_h264 ! autovideosink sync=false


    


    It works but I go over my bandwidth limit if there is movement. I'm not sure if there is a way to limit bandwidth by setting a parameter here :

    


    'video/x-h264, width=800, height=600, framerate=30/1'


    


    From what I can find online, I have to use something like x264enc. I've followed tutorials but I can't get x264enc to work. it always outputs "Redistribute latency..." on both machines when run and it stays there.

    


    I've tried using x264enc like follows :

    


    gst-launch-1.0 rpicamsrc preview=false !  'video/x-raw, width=800, height=600, framerate=30/1' ! x264enc ! h264parse ! rtph264pay config-interval=1 pt=96 ! gdppay ! udpsink host=YOUR_PC_IP port=5000
gst-launch-1.0 rpicamsrc preview=false !  'video/x-raw, width=800, height=600, framerate=30/1' ! x264enc tune=zerolatency ! h264parse ! rtph264pay config-interval=1 pt=96 ! gdppay ! udpsink host=YOUR_PC_IP port=5000
gst-launch-1.0 rpicamsrc preview=false ! x264enc ! h264parse ! rtph264pay config-interval=1 pt=96 ! gdppay ! udpsink host=YOUR_PC_IP port=5000
gst-launch-1.0 rpicamsrc preview=false ! x264enc tune=zerolatency ! h264parse ! rtph264pay config-interval=1 pt=96 ! gdppay ! udpsink host=YOUR_PC_IP port=5000


    


    Based on tutorials, I would think some of those should work. Other threads say that tune=zerolatency fixes my problem. At least the ones with same output of "Redistribute latency..." I don't know what I'm doing wrong.

    


    Any help would be appreciated. Thanks !

    


  • Trying to stream webcam with VLC, video works but no audio

    19 août 2021, par MirceaKitsune

    I created a bash script a while back to stream my webcam to http with VLC. The line I used was :

    


    cvlc -vvv v4l2:///dev/video0 input_stream --sout '#transcode{vcodec=MJPG,vb=0,scale=1,acodec=none}:standard{access=http,mux=mpjpeg,dst=:1234}'


    


    That works fine but no audio. I've been trying to update it to capture sound from the webcam as well, but nothing I do seems to get that working. I know the ALSA address of the mic which is "hw:2,0" and using the arecord command as a test confirms it works, it's just vlc that isn't capturing or streaming accordingly. Here's the latest command I managed to work out, video is functional but no audio :

    


    cvlc -vvv v4l2:///dev/video0 alsa://hw:2,0 --live-caching=5000 --sout '#transcode{vcodec=h264,vb=1024,acodec=mpga,ab=128,samplerate=44100,channels=2}:standard{access=http,mux=ffmpeg{mux=flv},dst=:1234}'


    


    What is wrong with it and how do you recommend improving this ? Thanks.

    


  • FFmpeg audio behind video. Video from IP camera, Audio from microphone

    4 août 2021, par Evgeniy Russkih

    I'm trying to mix audio and video from different sources.
Video from camera via h264-converter and audio from microphone.
Unfortunately audio is stitching behind video for about 1-2s.
After that stream is supposed to be shown in browser with smallest delay possible, so adding -itsoffset would not going to work.

    


    Here is my command :

    


    


    ffmpeg.exe -r 30 -fflags nobuffer -i http://192.168.88.168/0.ts -f
dshow -i audio="Microphone (Realtek)" -acodec mp2 -ac 1 -f mpegts -r
30 -c:v mpeg1video -b:v 3200k
http://localhost:5000/upload/ae7e32f660b6427a9b6d9ab6abf4cf19

    


    


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