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  • 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.

  • Amélioration de la version de base

    13 septembre 2013

    Jolie sélection multiple
    Le plugin Chosen permet d’améliorer l’ergonomie des champs de sélection multiple. Voir les deux images suivantes pour comparer.
    Il suffit pour cela d’activer le plugin Chosen (Configuration générale du site > Gestion des plugins), puis de configurer le plugin (Les squelettes > Chosen) en activant l’utilisation de Chosen dans le site public et en spécifiant les éléments de formulaires à améliorer, par exemple select[multiple] pour les listes à sélection multiple (...)

Sur d’autres sites (6598)

  • Using GStreamer to receive and send h264 video (from OBS)

    16 mars 2020, par Ivorius

    I’ve been trying to set up using GStreamer to get support for some input I can output from OBS.

    OBS : rtp_mpegts to udp ://localhost:5000

    http-launch 8080 webmmux streamable=true name=stream udpsrc uri=udp://localhost:5000 caps="application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)MP2T-ES, payload=(int)
    
33" ! gstrtpjitterbuffer latency=200 ! application/x-rtp ! rtpmp2tdepay ! video/mpegts ! mpegtsdemux ! video/x-h264 ! queue ! decodebin ! vp8enc ! stream.   audiotestsrc ! vorbisenc ! stream.

    However, using this it seems to accept connections, but just closes them again after a while. Any clues on what I am doing wrong ? I am open to any format changes as long as they’re supported by OBS / ffmpeg.

    As a bonus, how do I add support for audio as well ?

    Background

    I’ve found https://github.com/sdroege/http-launch, which works well in displaying a GStreamer video over http:

    <video autoplay="autoplay" controls="">
    
    <source src="https://localhost:8080" type="video/mp4" codecs="avc1.4D401E, mp4a.40.2">
    
    You browser doesn't support element <code>video
    

    .

    I’ve managed to set up a pipeline where I can use a GStreamer source to pipe into a http-launch
    pipeline and display it on video :

    http-launch 8080 webmmux streamable=true name=stream udpsrc port=5000 caps = "application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264, payload=(int)96" ! mpegtsdemu
    
x ! h264parse ! TIViddec2 ! videoconvert ! vp8enc ! stream.   audiotestsrc ! vorbisenc ! stream.
    

    
gst-launch-1.0 -v videotestsrc ! videoconvert ! x264enc tune=zerolatency bitrate=500 speed-preset=superfast ! rtph264pay ! udpsink host=127.0.0.1 port=5000

    However, I don’t think OBS supports rpt over UDP. It uses ffmpeg to send these packets, which can stream rtp_mpegts. I’ve found some code snippets which claim to support the format, and stitch together the above pipeline.

  • Best way to transcode with FFMPEG and RADEO(AMDGPU)

    2 mars 2020, par Colin Bitterfield

    Question :

    1. Is this a correct transcoding command for FFMPEG ?
    2. Why is the error message showing up ?
    3. Does anyone have their Radeon system transcoding large amounts of Videos.

    [ I had this working just fine with a NVIDEO 1080 using cuda and could use multiple ffmpegs at the same time]

    Recently, I am trying to use a RADEON 580X (8GB) for transcoding.
    Every other video has a problem with
    ```amdgpu : The CS has been cancelled because the context is lost.``

    I can’t run more than one ffmpeg transcode without this error message and I can’t run an X Server without this problem.

    OS : Ubuntu 18.04 LTS (Fully Patched)
    RADEON : Pro Drivers installed
    FFMPEG : ffmpeg version N-96728-ge007059 (Compiled on the machine)

    Video that fails quickly :

    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'input.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    creation_time   : 2011-10-07T04:44:57.000000Z
    
    encoder         : Lavf51.12.1
    
  Duration: 00:32:05.21, start: 0.000000, bitrate: 15148 kb/s
    
    Stream #0:0(eng): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 15039 kb/s, 29.97 fps, 29.97 tbr, 2997 tbn, 48 tbc (default)
    
    Metadata:
    
      creation_time   : 2011-10-07T04:55:41.000000Z
    
      handler_name    : VideoHandler
    
    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 105 kb/s (default)
    
    Metadata:
    
      creation_time   : 2011-10-07T04:55:41.000000Z
    
      handler_name    : SoundHandler

    Transcoding Command :

    ~/bin/ffmpeg -hwaccel vaapi  -threads 16 -i input.mp4  -vaapi_device /dev/dri/renderD128 -vcodec h264_vaapi -vf format='nv12|vaapi,hwupload','deinterlace_vaapi=rate=field:auto=1,scale_vaapi=w=-1:h=480,hwupload' -b:v 2M output_480p.mp4 -y

    From this part, I am inferring (decode) is not hardware accelerated :

    Stream mapping:
    
  Stream #0:0 -> #0:0 (h264 (native) -> h264 (h264_vaapi))
    
  Stream #0:1 -> #0:1 (aac (native) -> aac (native))

  • ffmpeg DASH encoding : always getting bitrate as 200k for vp9 codec

    29 novembre 2019, par Saurabh

    I am using following command, earlier put here : to generate DASH files :

    ffmpeg -y -nostdin -loglevel error -i "$1" \
    
        -map 0:v:0  -map 0:v:0 -map 0:v:0  -map 0:v:0  -map 0:v:0  -map 0:v:0 -map 0:a\?:0  \
    
        -maxrate:v:0 350k -bufsize:v:0 700k -c:v:0 libx264 -filter:v:0 "scale=320:-2"  \
    
        -maxrate:v:1 1000k -bufsize:v:1 2000k -c:v:1 libx264 -filter:v:1 "scale=640:-2"  \
    
        -maxrate:v:2 3000k -bufsize:v:2 6000k -c:v:2 libx264 -filter:v:2 "scale=1280:-2" \
    
        -maxrate:v:3 300k -minrate:v:3 100k -bufsize:v:3 600k -c:v:3 libvpx-vp9 -filter:v:3 "scale=320:-2"  \
    
        -maxrate:v:4 1088k -minrate:v:4 200k -bufsize:v:4 2176k -c:v:4 libvpx-vp9 -filter:v:4 "scale=640:-2"  \
    
        -maxrate:v:5 1500k -minrate:v:5 300k -bufsize:v:5 3000k -c:v:5 libvpx-vp9 -filter:v:5 "scale=1280:-2"  \
    
        -use_timeline 1  -use_template 1 -adaptation_sets "id=0,streams=0,1,2 id=1,streams=3,4,5 id=2,streams=a" \
    
        -threads 8 -crf 3 -seg_duration 5 -hls_init_time 1 -hls_time 5 -hls_playlist true -f dash "$2"

    The issue is, in the output, I always get bandwidth as 200k for vp9 codec(see output below), while for same video bandwidth for h264 codec varies as par resolution and quite less, I expected vp9 to be even less as it compresses more. I have tested using multiple different options like : -b:v, -deadline, -cpu-used -crf, etc, but not working expected with different values of these, What am I missing ?

    Sample output mpd file :

    &lt;?xml version="1.0" encoding="utf-8"?>
    
<mpd xmlns="urn:mpeg:dash:schema:mpd:2011" profiles="urn:mpeg:dash:profile:isoff-live:2011" type="static" mediapresentationduration="PT25.4S" minbuffertime="PT15.0S">
    
    <programinformation>
    
    </programinformation>
    
    <period start="PT0.0S">
    
        <adaptationset contenttype="video" segmentalignment="true" bitstreamswitching="true" lang="und">
    
            <representation mimetype="video/mp4" codecs="avc1.64000c" bandwidth="104972" width="320" height="180" framerate="24000/1001">
    
                <segmenttemplate timescale="24000" initialization="init-stream$RepresentationID$.m4s" media="chunk-stream$RepresentationID$-$Number%05d$.m4s" startnumber="1">
    
                    <segmenttimeline>
    
                        <s t="0" d="130130"></s>
    
                        <s d="250250"></s>
    
                        <s d="176176"></s>
    
                        <s d="54054"></s>
    
                    </segmenttimeline>
    
                </segmenttemplate>
    
            </representation>
    
            <representation mimetype="video/mp4" codecs="avc1.64001e" bandwidth="227233" width="640" height="360" framerate="24000/1001">
    
                <segmenttemplate timescale="24000" initialization="init-stream$RepresentationID$.m4s" media="chunk-stream$RepresentationID$-$Number%05d$.m4s" startnumber="1">
    
                    <segmenttimeline>
    
                        <s t="0" d="130130"></s>
    
                        <s d="250250"></s>
    
                        <s d="180180"></s>
    
                        <s d="50050"></s>
    
                    </segmenttimeline>
    
                </segmenttemplate>
    
            </representation>
    
            <representation mimetype="video/mp4" codecs="avc1.64001f" bandwidth="616878" width="1280" height="720" framerate="24000/1001">
    
                <segmenttemplate timescale="24000" initialization="init-stream$RepresentationID$.m4s" media="chunk-stream$RepresentationID$-$Number%05d$.m4s" startnumber="1">
    
                    <segmenttimeline>
    
                        <s t="0" d="130130"></s>
    
                        <s d="250250"></s>
    
                        <s d="180180"></s>
    
                        <s d="50050"></s>
    
                    </segmenttimeline>
    
                </segmenttemplate>
    
            </representation>
    
        </adaptationset>
    
        <adaptationset contenttype="video" segmentalignment="true" bitstreamswitching="true" lang="und">
    
            <representation mimetype="video/mp4" codecs="vp09.00.11.08" bandwidth="200000" width="320" height="180" framerate="24000/1001">
    
                <segmenttemplate timescale="24000" initialization="init-stream$RepresentationID$.m4s" media="chunk-stream$RepresentationID$-$Number%05d$.m4s" startnumber="1">
    
                    <segmenttimeline>
    
                        <s t="0" d="128128" r="3"></s>
    
                        <s d="98098"></s>
    
                    </segmenttimeline>
    
                </segmenttemplate>
    
            </representation>
    
            <representation mimetype="video/mp4" codecs="vp09.00.21.08" bandwidth="200000" width="640" height="360" framerate="24000/1001">
    
                <segmenttemplate timescale="24000" initialization="init-stream$RepresentationID$.m4s" media="chunk-stream$RepresentationID$-$Number%05d$.m4s" startnumber="1">
    
                    <segmenttimeline>
    
                        <s t="0" d="128128" r="3"></s>
    
                        <s d="98098"></s>
    
                    </segmenttimeline>
    
                </segmenttemplate>
    
            </representation>
    
            <representation mimetype="video/mp4" codecs="vp09.00.31.08" bandwidth="200000" width="1280" height="720" framerate="24000/1001">
    
                <segmenttemplate timescale="24000" initialization="init-stream$RepresentationID$.m4s" media="chunk-stream$RepresentationID$-$Number%05d$.m4s" startnumber="1">
    
                    <segmenttimeline>
    
                        <s t="0" d="128128" r="3"></s>
    
                        <s d="98098"></s>
    
                    </segmenttimeline>
    
                </segmenttemplate>
    
            </representation>
    
        </adaptationset>
    
        <adaptationset contenttype="audio" segmentalignment="true" bitstreamswitching="true" lang="eng">
    
            <representation mimetype="audio/mp4" codecs="mp4a.40.2" bandwidth="128000" audiosamplingrate="44100">
    
                <audiochannelconfiguration schemeiduri="urn:mpeg:dash:23003:3:audio_channel_configuration:2011" value="2"></audiochannelconfiguration>
    
                <segmenttemplate timescale="44100" initialization="init-stream$RepresentationID$.m4s" media="chunk-stream$RepresentationID$-$Number%05d$.m4s" startnumber="1">
    
                    <segmenttimeline>
    
                        <s t="0" d="235520" r="3"></s>
    
                        <s d="180224"></s>
    
                    </segmenttimeline>
    
                </segmenttemplate>
    
            </representation>
    
        </adaptationset>
    
    </period>
    
</mpd>

    I am using this video, but it is coming same for all 30 sec video I have tried.

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