
Recherche avancée
Autres articles (26)
-
Utilisation et configuration du script
19 janvier 2011, parInformations spécifiques à la distribution Debian
Si vous utilisez cette distribution, vous devrez activer les dépôts "debian-multimedia" comme expliqué ici :
Depuis la version 0.3.1 du script, le dépôt peut être automatiquement activé à la suite d’une question.
Récupération du script
Le script d’installation peut être récupéré de deux manières différentes.
Via svn en utilisant la commande pour récupérer le code source à jour :
svn co (...) -
Ajouter notes et légendes aux images
7 février 2011, parPour pouvoir ajouter notes et légendes aux images, la première étape est d’installer le plugin "Légendes".
Une fois le plugin activé, vous pouvez le configurer dans l’espace de configuration afin de modifier les droits de création / modification et de suppression des notes. Par défaut seuls les administrateurs du site peuvent ajouter des notes aux images.
Modification lors de l’ajout d’un média
Lors de l’ajout d’un média de type "image" un nouveau bouton apparait au dessus de la prévisualisation (...) -
Contribute to translation
13 avril 2011You can help us to improve the language used in the software interface to make MediaSPIP more accessible and user-friendly. You can also translate the interface into any language that allows it to spread to new linguistic communities.
To do this, we use the translation interface of SPIP where the all the language modules of MediaSPIP are available. Just subscribe to the mailing list and request further informantion on translation.
MediaSPIP is currently available in French and English (...)
Sur d’autres sites (7894)
-
What Is Incrementality & Why Is It Important in Marketing ?
26 mars 2024, par Erin -
Incrementality Testing : Quick-Start Guide (With Calculations)
26 mars 2024, par Erin -
VLC - Could someone assist me into improving latency in streaming to web based app ?
19 janvier 2017, par zyeekI have been looking for solutions in which I can stream an IP camera’s stream to
HTML 5
. Currently as is it doesn’t supportRTSP
so easily.I am trying to be able to view the camera’s stream as live as possible. I was hoping someone could help me achieve that. I have been playing with it to get something workable, but at the moment I get a 5s delay stream. It is smooth, but wish to get it hopefully within <1-2s delay if possible.
My current setup goes from taking my IP camera’s stream in
RTSP
and converting it to awebm
and streaming it to a url, which then I plan on using that to put else where in a web app.What I would like to achieve
Use a protocol that has low latency with audio was well. Webm was used as test, but I can’t seem to get other commands to get the proper stream to be going.
I would like to use DASH, but from reading
FFMPEG
currently doesn’t support it. I was thinking maybeRTMP
would be good enough for now, being both low latency andHTTP 5
compatible. I am just unable to figure out how to getFFMPEG
to transcode theRTSP
toRTMP
.SETUP :
I am using ffserver and ffmpeg. Overall scope : trying to pull IP camera stream and put it on a web app.
Framework I am use is Meteor JS. So, I am trying to few plugins or outside complex setups as I want to be able to deploy this Meteor app on mobile devices as well. So, I want to stay within the boundaries of what
HTML 5
can support.My current ffserver setup is
ffserver.conf
(this was taking from bunch of different place :HTTPPort 8090 # Port to bind the server to
HTTPBindAddress 0.0.0.0
MaxHTTPConnections 2000
MaxClients 1000
MaxBandwidth 10000 # Maximum bandwidth per client
# set this high enough to exceed stream bitrate
CustomLog -
<feed>
File /tmp/feed.ffm
FileMaxSize 100K
ACL allow 127.0.0.1
</feed>
<stream>
Format webm
Feed feed.ffm
NoAudio
VideoCodec libvpx
VideoFrameRate 24
VideoBitRate 1024
VideoSize 480x270
VideoBufferSize 1024
AVOptionVideo flags +global_header
StartSendOnKey
</stream>
<stream> # Server status URL
Format status
# Only allow local people to get the status
ACL allow localhost
</stream>
<redirect> # Just an URL redirect for index
# Redirect index.html to the appropriate site
URL url/
</redirect>Works normally :
ffserver version 3.2.2 Copyright (c) 2000-2016 the FFmpeg developers
built with Apple LLVM version 5.1 (clang-503.0.40) (based on LLVM 3.4svn)
configuration: --prefix=/usr/local/Cellar/ffmpeg/3.2.2 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-ffplay --enable-frei0r --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxvid --enable-opencl --disable-lzma --enable-libopenjpeg --disable-decoder=jpeg2000 --extra-cflags=-I/usr/local/Cellar/openjpeg/2.1.2/include/openjpeg-2.1 --enable-nonfree --enable-vda
libavutil 55. 34.100 / 55. 34.100
libavcodec 57. 64.101 / 57. 64.101
libavformat 57. 56.100 / 57. 56.100
libavdevice 57. 1.100 / 57. 1.100
libavfilter 6. 65.100 / 6. 65.100
libavresample 3. 1. 0 / 3. 1. 0
libswscale 4. 2.100 / 4. 2.100
libswresample 2. 3.100 / 2. 3.100
libpostproc 54. 1.100 / 54. 1.100
/etc/ffserver.conf:27: Setting default value for video bit rate tolerance = 256000. Use NoDefaults to disable it.
/etc/ffserver.conf:27: Setting default value for video rate control equation = tex^qComp. Use NoDefaults to disable it.
/etc/ffserver.conf:27: Setting default value for video max rate = 2048000. Use NoDefaults to disable it.
Wed Jan 18 17:04:30 2017 FFserver started.Now I give life to the feed with
ffmpeg
. Command I use :ffmpeg -vsync 2 -i rtsp://admin:password@192.168.2.165:88/videoMain -map 0 http://localhost:8090/feed.ffm
which gives the result :
ffmpeg version 3.2.2 Copyright (c) 2000-2016 the FFmpeg developers
built with Apple LLVM version 5.1 (clang-503.0.40) (based on LLVM 3.4svn)
configuration: --prefix=/usr/local/Cellar/ffmpeg/3.2.2 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-ffplay --enable-frei0r --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxvid --enable-opencl --disable-lzma --enable-libopenjpeg --disable-decoder=jpeg2000 --extra-cflags=-I/usr/local/Cellar/openjpeg/2.1.2/include/openjpeg-2.1 --enable-nonfree --enable-vda
libavutil 55. 34.100 / 55. 34.100
libavcodec 57. 64.101 / 57. 64.101
libavformat 57. 56.100 / 57. 56.100
libavdevice 57. 1.100 / 57. 1.100
libavfilter 6. 65.100 / 6. 65.100
libavresample 3. 1. 0 / 3. 1. 0
libswscale 4. 2.100 / 4. 2.100
libswresample 2. 3.100 / 2. 3.100
libpostproc 54. 1.100 / 54. 1.100
Guessed Channel Layout for Input Stream #0.1 : mono
Input #0, rtsp, from 'rtsp://admin:password@192.168.2.165:88/videoMain':
Metadata:
title : IP Camera Video
comment : videoMain
Duration: N/A, start: 0.000000, bitrate: N/A
Stream #0:0: Video: h264 (Main), yuv420p(progressive), 1280x720, 90k tbr, 90k tbn, 180k tbc
Stream #0:1: Audio: pcm_mulaw, 8000 Hz, mono, s16, 64 kb/s
[libvpx @ 0x7fd58184a600] v1.6.0
Output #0, ffm, to 'http://localhost:8090/feed.ffm':
Metadata:
title : IP Camera Video
comment : videoMain
creation_time : now
encoder : Lavf57.56.100
Stream #0:0: Video: vp8 (libvpx), yuv420p, 480x270, q=-1--1, 1024 kb/s, 90k fps, 1000k tbn, 24 tbc
Metadata:
encoder : Lavc57.64.101 libvpx
Side data:
cpb: bitrate max/min/avg: 0/0/0 buffer size: 8388608 vbv_delay: -1
Stream mapping:
Stream #0:0 -> #0:0 (h264 (native) -> vp8 (libvpx))
Press [q] to stop, [?] for help
[rtsp @ 0x7fd581000000] max delay reached. need to consume packet
[rtsp @ 0x7fd581000000] RTP: missed 5 packets
[h264 @ 0x7fd5818ae800] Increasing reorder buffer to 1
frame= 139 fps= 18 q=0.0 Lsize= 440kB time=00:00:09.25 bitrate= 389.7kbits/s speed=1.19x
video:429kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 2.663893%