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Autres articles (109)
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Ajouter des informations spécifiques aux utilisateurs et autres modifications de comportement liées aux auteurs
12 avril 2011, parLa manière la plus simple d’ajouter des informations aux auteurs est d’installer le plugin Inscription3. Il permet également de modifier certains comportements liés aux utilisateurs (référez-vous à sa documentation pour plus d’informations).
Il est également possible d’ajouter des champs aux auteurs en installant les plugins champs extras 2 et Interface pour champs extras. -
Encoding and processing into web-friendly formats
13 avril 2011, parMediaSPIP automatically converts uploaded files to internet-compatible formats.
Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
All uploaded files are stored online in their original format, so you can (...) -
MediaSPIP Player : problèmes potentiels
22 février 2011, parLe lecteur ne fonctionne pas sur Internet Explorer
Sur Internet Explorer (8 et 7 au moins), le plugin utilise le lecteur Flash flowplayer pour lire vidéos et son. Si le lecteur ne semble pas fonctionner, cela peut venir de la configuration du mod_deflate d’Apache.
Si dans la configuration de ce module Apache vous avez une ligne qui ressemble à la suivante, essayez de la supprimer ou de la commenter pour voir si le lecteur fonctionne correctement : /** * GeSHi (C) 2004 - 2007 Nigel McNie, (...)
Sur d’autres sites (12842)
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I am working on Ionic project Compressing and watermarking video in ionic app before uploading it to server
23 janvier 2020, par kartik bansalI have a large video file in ionic app which need to be compressed and watermarked before uploading, one of the solution i think is ffmpeg how can i use it ? Can someone refer any article Thanks
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ffmpeg, Audiostream : How to get type (fourcc) of it with the API ?
21 août 2021, par User42This seems to be a too simple question,
but I was not successful in getting it :


I have no problems with decoding a stream and accessing the data.
But I also need the bitrate and the type of the stream.


The bitrate and the codec used I get by AVCodecContext's members
bit_rate and codec_id.


But I don't need the codec used but the stream type
(as the codec AV_CODEC_ID_MP3 is used for mp1, mp2 and mp3 for example).


I tried AVStream.id, but it is always 0.


Looks like I'm mixing up things, but where ?


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RTP Streaming with ffmpeg : server streaming, client failing
27 novembre 2013, par Christoph KuhrI compiled ffmpeg and x264 myself.
x264 version :
#define X264_REV 2377
#define X264_REV_DIFF 0
#define X264_VERSION " r2377 1ca7bb9"
#define X264_POINTVER "0.140.2377 1ca7bb9"ffmpeg version : 0.11.4
ffmpeg configuration :--enable-x11grab --enable-pthreads --enable-libfaac --enable-libxvid --enable-libx264 --enable-libv4l2 --enable-libmp3lame --enable-libpulse --enable-gpl --enable-nonfree --disable-yasm
streaming server call :
ffmpeg -f x11grab -s 1600x900 -framerate 50 -i :0.0 -vcodec libx264 -threads 4 -preset ultrafast -crf 0 -q:v 1 -b:v 8M -an -f rtp rtp://192.168.188.30:8710
...
Output #0, rtp, to 'rtp://192.168.188.30:8710':
Metadata:
encoder : Lavf54.6.100
Stream #0:0: Video: h264, yuv420p, 1600x900, q=-1--1, 8000 kb/s, 90k tbn, 50 tbc
Stream mapping:
Stream #0:0 -> #0:0 (rawvideo -> libx264)
SDP:
v=0
o=- 0 0 IN IP4 127.0.0.1
s=No Name
c=IN IP4 192.168.188.30
t=0 0
a=tool:libavformat 54.6.100
m=video 8710 RTP/AVP 96
b=AS:8000
a=rtpmap:96 H264/90000
a=fmtp:96 packetization-mode=1Everything looks good so far...
Now the problem.
I create foo.sdp from the SDP output of the server and try to playback the stream with ffmpegffplay foo.sdp
. ffplay fails with the following error :[sdp @ 0x7f5e0c0008c0] decoding for stream 0 failed
[sdp @ 0x7f5e0c0008c0] Could not find codec parameters (Video: h264)
[sdp @ 0x7f5e0c0008c0] Estimating duration from bitrate, this may be inaccurate
gameserver.sdp: could not find codec parametersIf I try the same with VLC, it also fails, but with the different error :
[0x7f3278c045b8] live555 demux error: no data received in 10s, aborting
Look like different reasons. But I could not solve either. Does anyone have a clue ?