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  • Mise à jour de la version 0.1 vers 0.2

    24 juin 2013, par

    Explications des différents changements notables lors du passage de la version 0.1 de MediaSPIP à la version 0.3. Quelles sont les nouveautés
    Au niveau des dépendances logicielles Utilisation des dernières versions de FFMpeg (>= v1.2.1) ; Installation des dépendances pour Smush ; Installation de MediaInfo et FFprobe pour la récupération des métadonnées ; On n’utilise plus ffmpeg2theora ; On n’installe plus flvtool2 au profit de flvtool++ ; On n’installe plus ffmpeg-php qui n’est plus maintenu au (...)

  • Personnaliser en ajoutant son logo, sa bannière ou son image de fond

    5 septembre 2013, par

    Certains thèmes prennent en compte trois éléments de personnalisation : l’ajout d’un logo ; l’ajout d’une bannière l’ajout d’une image de fond ;

  • Ecrire une actualité

    21 juin 2013, par

    Présentez les changements dans votre MédiaSPIP ou les actualités de vos projets sur votre MédiaSPIP grâce à la rubrique actualités.
    Dans le thème par défaut spipeo de MédiaSPIP, les actualités sont affichées en bas de la page principale sous les éditoriaux.
    Vous pouvez personnaliser le formulaire de création d’une actualité.
    Formulaire de création d’une actualité Dans le cas d’un document de type actualité, les champs proposés par défaut sont : Date de publication ( personnaliser la date de publication ) (...)

Sur d’autres sites (10201)

  • FFMPEG stream to youtube crashing

    29 septembre 2022, par jakeb

    We have a script that runs FFMPEG and broadcasts a tab recording from puppeteer, it will run fine for a period of time, but if the chromium tab from puppeteer ends up doing certain things (playing a youtube video, for example) FFMPEG crashes. It doesn't matter if the video is 4k 60 FPS, or if it's a 480i video from 2009, the result seems to be the same.

    


    This is the FFMPEG command we're running :

    


    ffmpeg -loglevel info -i - -c:v libx264 -b:v 15000k -preset ultrafast -tune animation -force_key_frames "expr:gte(t,n_forced*2)" -sc_threshold 0 -c:a aac -minrate 15000k -s 1920x1080 -r 60 -vsync 1 -max_muxing_queue_size 1024 -max_interleave_delta 0 -f flv -flvflags no_duration_filesize "rtmps://a.rtmps.youtube.com/live2/*****"


    


    This is the output when it crashes :

    


    frame= 6554 fps= 57 q=0.0 size=   17033kB time=00:02:00.02 bitrate=1162. 5d7095f4-8035-4dc5-85e1-535f90d1935b   
frame= 6564 fps= 56 q=1.0 size=   17189kB time=00:02:01.02 bitrate=1163. 5d7095f4-8035-4dc5-85e1-535f90d1935b   
frame= 6566 fps= 56 q=0.0 size=   17224kB time=00:02:02.05 bitrate=1156. 5d7095f4-8035-4dc5-85e1-535f90d1935b   
frame= 6570 fps= 56 q=1.0 size=   17276kB time=00:02:03.07 bitrate=1149. 5d7095f4-8035-4dc5-85e1-535f90d1935b   
frame= 6580 fps= 55 q=2.0 size=   17431kB time=00:02:04.10 bitrate=1150. 5d7095f4-8035-4dc5-85e1-535f90d1935b   
frame= 6602 fps= 55 q=0.0 size=   17730kB time=00:02:05.12 bitrate=1160. 5d7095f4-8035-4dc5-85e1-535f90d1935b   
frame= 6648 fps= 55 q=1.0 size=   18802kB time=00:02:06.12 bitrate=1221. 5d7095f4-8035-4dc5-85e1-535f90d1935b   
frame= 6710 fps= 55 q=0.0 size=   18824kB time=00:02:07.15 bitrate=1212. 5d7095f4-8035-4dc5-85e1-535f90d1935b   
frame= 6770 fps= 55 q=0.0 size=   19539kB time=00:02:08.17 bitrate=1248. 5d7095f4-8035-4dc5-85e1-535f90d1935b   
frame= 6831 fps= 55 q=1.0 size=   19560kB time=00:02:09.19 bitrate=1240. 5d7095f4-8035-4dc5-85e1-535f90d1935b   
frame= 7013 fps= 56 q=0.0 size=   21011kB time=00:02:10.39 bitrate=1320. 5d7095f4-8035-4dc5-85e1-535f90d1935b   
frame= 7256 fps= 58 q=0.0 size=   22483kB time=00:02:10.52 bitrate=1411. 5d7095f4-8035-4dc5-85e1-535f90d1935b   
frame= 7625 fps= 60 q=0.0 size=   24692kB time=00:02:10.58 bitrate=1549. 5d7095f4-8035-4dc5-85e1-535f90d1935b   
frame= 7828 fps= 62 q=2.0 size=   25456kB time=00:02:10.82 bitrate=1594. 5d7095f4-8035-4dc5-85e1-535f90d1935b   
frame= 7895 fps= 62 q=0.0 size=   35079kB time=00:02:12.03 bitrate=2176. 5d7095f4-8035-4dc5-85e1-535f90d1935b   
frame= 7936 fps= 62 q=2.0 size=   42929kB time=00:02:12.83 bitrate=2647. 5d7095f4-8035-4dc5-85e1-535f90d1935b   
frame= 7981 fps= 62 q=2.0 size=   53139kB time=00:02:13.53 bitrate=3259. 5d7095f4-8035-4dc5-85e1-535f90d1935b   
frame= 8030 fps= 62 q=0.0 size=   63944kB time=00:02:14.32 bitrate=3899. 5d7095f4-8035-4dc5-85e1-535f90d1935b   
frame= 8081 fps= 62 q=0.0 size=   74523kB time=00:02:15.16 bitrate=4516. 5d7095f4-8035-4dc5-85e1-535f90d1935b   
frame= 8128 fps= 62 q=2.0 size=   84385kB time=00:02:15.94 bitrate=5084. 5d7095f4-8035-4dc5-85e1-535f90d1935b   
frame= 8145 fps= 62 q=1.0 size=   87711kB time=00:02:16.24 bitrate=5273. 5d7095f4-8035-4dc5-85e1-535f90d1935b   
frame= 8193 fps= 62 q=1.0 size=   98046kB time=00:02:17.01 bitrate=5862. 5d7095f4-8035-4dc5-85e1-535f90d1935b   
frame= 8204 fps= 62 q=0.0 size=  100564kB time=00:02:17.27 bitrate=6001. 5d7095f4-8035-4dc5-85e1-535f90d1935b   
frame= 8252 fps= 62 q=0.0 size=  110255kB time=00:02:18.04 bitrate=6543. 5d7095f4-8035-4dc5-85e1-535f90d1935b   
frame= 8266 fps= 62 q=2.0 size=  113024kB time=00:02:18.29 bitrate=6695. 5d7095f4-8035-4dc5-85e1-535f90d1935b   
[tls @ 0x563ee0299440] Error in the push function.
av_interleaved_write_frame(): Input/output error
    Last message repeated 2 times
Error writing trailer of rtmps://a.rtmps.youtube.com/live2/****: Input/output error
frame= 8311 fps= 62 q=2.0 Lsize=  123071kB time=00:02:19.02 bitrate=7252.1kbits/s dup=7716 drop=1 speed=1.04x    
video:123035kB audio:202kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
[tls @ 0x563ee0299440] The specified session has been invalidated for some reason.
    Last message repeated 1 times
[libx264 @ 0x563ee026fe80] frame I:70    Avg QP: 0.31  size:221022
[libx264 @ 0x563ee026fe80] frame P:2770  Avg QP: 0.05  size: 29868
[libx264 @ 0x563ee026fe80] frame B:5471  Avg QP: 1.56  size:  6271
[libx264 @ 0x563ee026fe80] consecutive B-frames:  0.8%  1.7% 97.5%
[libx264 @ 0x563ee026fe80] mb I  I16..4: 100.0%  0.0%  0.0%
[libx264 @ 0x563ee026fe80] 
mb P  I16..4:  1.8%  0.0%  0.0%  P16..4:  5.2%  0.0%  0.0%  0.0%  0.0%    skip:93.0%
[libx264 @ 0x563ee026fe80] mb B  I16..4:  0.1%  0.0%  0.0%  B16..8:  0.6%  0.0%  0.0%  direct: 2.8%  skip:96.5%  L0:46.8% L1:38.5% BI:14.7%
[libx264 @ 0x563ee026fe80] final ratefactor: -5.03
[libx264 @ 0x563ee026fe80] coded y,uvDC,uvAC intra: 50.9% 43.8% 40.5% inter: 2.3% 1.8% 1.7%
[libx264 @ 0x563ee026fe80] i16 v,h,dc,p: 53% 30%  4% 12%
[libx264 @ 0x563ee026fe80] i8c dc,h,v,p: 58% 24%  8% 10%
[libx264 @ 0x563ee026fe80] kb/s:7653.50
[aac @ 0x563ee0282500] Qavg: 61059.410
Conversion failed!
[ERROR] 16:33:59 Error: write EPIPE


    


  • Issues with using FFmpeg to generate MPEG-DASH files

    26 septembre 2022, par Tina J

    I am using the following ffmpeg command to generate MPEG DASH files and manifest. I use single_file 1 to have a single file for each representation ; so no chunking. But IDK why when I want to play the manifest using ExoPlayer, the video doesn't play from the beginning (rather it starts from around 50s).

    


    ffmpeg -re -i .\video-h264.mkv -map 0 -map 0 -c:a aac -c:v libx264 -b:v:0 800k -b:v:1 300k -s:v:1 320x170 -profile:v:1 baseline -profile:v:0 main -bf 1 -keyint_min 120 -g 120 -sc_threshold 0 -b_strategy 0 -ar:a:1 22050 -use_timeline 1 -single_file 1 -use_template 1 -window_size 5 -adaptation_sets "id=0,streams=v id=1,streams=a" -f dash out.mpd


    


    What is wrong with this ? Is the manifest correct ? Here is the generated mpd :

    


    &lt;?xml version="1.0" encoding="utf-8"?>&#xA;<mpd xmlns="urn:mpeg:dash:schema:mpd:2011" profiles="urn:mpeg:dash:profile:isoff-live:2011" type="static" mediapresentationduration="PT1M20.1S" maxsegmentduration="PT5.0S" minbuffertime="PT16.0S">&#xA;    <programinformation>&#xA;    </programinformation>&#xA;    <servicedescription>&#xA;    </servicedescription>&#xA;    <period start="PT48.0S">&#xA;        <adaptationset contenttype="video" startwithsap="1" segmentalignment="true" bitstreamswitching="true" framerate="30/1" maxwidth="960" maxheight="540" par="517072:290799" lang="eng">&#xA;            <representation mimetype="video/mp4" codecs="avc1.4d401f" bandwidth="800000" width="960" height="540" sar="32317:32311">&#xA;                <baseurl>out-stream0.mp4</baseurl>&#xA;                <segmentlist timescale="1000000" duration="5000000" startnumber="7">&#xA;                    <initialization range="0-832"></initialization>&#xA;                    <segmenturl mediarange="4800141-5599188" indexrange="4800141-4800192"></segmenturl>&#xA;                    <segmenturl mediarange="5599189-6243069" indexrange="5599189-5599240"></segmenturl>&#xA;                    <segmenturl mediarange="6243070-7224302" indexrange="6243070-6243121"></segmenturl>&#xA;                    <segmenturl mediarange="7224303-8138118" indexrange="7224303-7224354"></segmenturl>&#xA;                    <segmenturl mediarange="8138119-8232111" indexrange="8138119-8138170"></segmenturl>&#xA;                </segmentlist>&#xA;            </representation>&#xA;            <representation mimetype="video/mp4" codecs="avc1.42c00d" bandwidth="300000" width="320" height="170" sar="549389:581598">&#xA;                <baseurl>out-stream2.mp4</baseurl>&#xA;                <segmentlist timescale="1000000" duration="5000000" startnumber="7">&#xA;                    <initialization range="0-832"></initialization>&#xA;                    <segmenturl mediarange="1782920-2005667" indexrange="1782920-1782971"></segmenturl>&#xA;                    <segmenturl mediarange="2005668-2229412" indexrange="2005668-2005719"></segmenturl>&#xA;                    <segmenturl mediarange="2229413-2615209" indexrange="2229413-2229464"></segmenturl>&#xA;                    <segmenturl mediarange="2615210-2975346" indexrange="2615210-2615261"></segmenturl>&#xA;                    <segmenturl mediarange="2975347-2999288" indexrange="2975347-2975398"></segmenturl>&#xA;                </segmentlist>&#xA;            </representation>&#xA;        </adaptationset>&#xA;        <adaptationset contenttype="audio" startwithsap="1" segmentalignment="true" bitstreamswitching="true" lang="eng">&#xA;            <representation mimetype="audio/mp4" codecs="mp4a.40.2" bandwidth="69000" audiosamplingrate="44100">&#xA;                <audiochannelconfiguration schemeiduri="urn:mpeg:dash:23003:3:audio_channel_configuration:2011" value="1"></audiochannelconfiguration>&#xA;                <baseurl>out-stream1.mp4</baseurl>&#xA;                <segmentlist timescale="1000000" duration="5000000" startnumber="12">&#xA;                    <initialization range="0-764"></initialization>&#xA;                    <segmenturl mediarange="491493-536039" indexrange="491493-491544"></segmenturl>&#xA;                    <segmenturl mediarange="536040-580657" indexrange="536040-536091"></segmenturl>&#xA;                    <segmenturl mediarange="580658-625158" indexrange="580658-580709"></segmenturl>&#xA;                    <segmenturl mediarange="625159-669825" indexrange="625159-625210"></segmenturl>&#xA;                    <segmenturl mediarange="669826-713289" indexrange="669826-669877"></segmenturl>&#xA;                </segmentlist>&#xA;            </representation>&#xA;            <representation mimetype="audio/mp4" codecs="mp4a.40.2" bandwidth="69000" audiosamplingrate="22050">&#xA;                <audiochannelconfiguration schemeiduri="urn:mpeg:dash:23003:3:audio_channel_configuration:2011" value="1"></audiochannelconfiguration>&#xA;                <baseurl>out-stream3.mp4</baseurl>&#xA;                <segmentlist timescale="1000000" duration="5000000" startnumber="12">&#xA;                    <initialization range="0-764"></initialization>&#xA;                    <segmenturl mediarange="486188-530059" indexrange="486188-486239"></segmenturl>&#xA;                    <segmenturl mediarange="530060-574175" indexrange="530060-530111"></segmenturl>&#xA;                    <segmenturl mediarange="574176-618922" indexrange="574176-574227"></segmenturl>&#xA;                    <segmenturl mediarange="618923-663118" indexrange="618923-618974"></segmenturl>&#xA;                    <segmenturl mediarange="663119-706121" indexrange="663119-663170"></segmenturl>&#xA;                </segmentlist>&#xA;            </representation>&#xA;        </adaptationset>&#xA;    </period>&#xA;</mpd>&#xA;

    &#xA;

  • avcodec/libvpx : fix assembling vp9 packets with alpha channel

    21 août 2022, par James Almer
    avcodec/libvpx : fix assembling vp9 packets with alpha channel

    There's no warranty that vpx_codec_encode() will generate a list with the same
    
amount of packets for both the yuv planes encoder and the alpha plane encoder,
    
so queueing packets based on what the main encoder returns will fail when the
    
amount of packets in both lists differ.
    
Queue all data packets for every vpx_codec_encode() call from both encoders
    
before attempting to assemble output AVPackets out of them.
    

    Fixes ticket #9884
    

    Reviewed-by : Vignesh Venkatasubramanian <vigneshv@google.com>
    
Signed-off-by : James Almer <jamrial@gmail.com>
    • [DH] libavcodec/libvpxenc.c

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