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Les formats acceptés
28 janvier 2010, parLes commandes suivantes permettent d’avoir des informations sur les formats et codecs gérés par l’installation local de ffmpeg :
ffmpeg -codecs ffmpeg -formats
Les format videos acceptés en entrée
Cette liste est non exhaustive, elle met en exergue les principaux formats utilisés : h264 : H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 m4v : raw MPEG-4 video format flv : Flash Video (FLV) / Sorenson Spark / Sorenson H.263 Theora wmv :
Les formats vidéos de sortie possibles
Dans un premier temps on (...) -
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 (...) -
Demande de création d’un canal
12 mars 2010, parEn fonction de la configuration de la plateforme, l’utilisateur peu avoir à sa disposition deux méthodes différentes de demande de création de canal. La première est au moment de son inscription, la seconde, après son inscription en remplissant un formulaire de demande.
Les deux manières demandent les mêmes choses fonctionnent à peu près de la même manière, le futur utilisateur doit remplir une série de champ de formulaire permettant tout d’abord aux administrateurs d’avoir des informations quant à (...)
Sur d’autres sites (4862)
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Revision 284e793d5a : Add constant to represent minimum KF boost Added a constant to represent the mi
23 janvier 2014, par Adrian GrangeChanged Paths :
Modify /vp9/encoder/vp9_firstpass.c
Add constant to represent minimum KF boostAdded a constant to represent the minimum KF boost
rather than using the magic number 2000 in the code.Change-Id : I9428b61f47d26312caff81c6f9ae8587df004791
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Playing RTSP stream in Android
9 décembre 2014, par KamilI’m trying to play video stream on Android device. Unfortunatelly I still get the same problem with MediaPlayer/VideoView. I’m searching for a few days, but still haven’t found any working solution.
For test purposes I’m using MediaPlayer app from API Demos (API Demos/Media/MediaPlayer/Play Streaming Video).
Here is code snippet for playing streammMediaPlayer = new MediaPlayer();
mMediaPlayer.setDataSource(path);
mMediaPlayer.setDisplay(holder);
mMediaPlayer.prepare();
mMediaPlayer.setOnBufferingUpdateListener(this);
mMediaPlayer.setOnCompletionListener(this);
mMediaPlayer.setOnPreparedListener(this);
mMediaPlayer.setOnVideoSizeChangedListener(this);When I try to play stream I get this info from logcat
http://pastebin.com/5Uib5CH5This is configuration of ffserver streaming the video
Port 8090
BindAddress 0.0.0.0
RTSPPort 7654
RTSPBindAddress 0.0.0.0
MaxHTTPConnections 2000
MaxClients 1000
MaxBandwidth 10000
CustomLog -
NoDaemon
<Feed feed1.ffm>
File /tmp/feed1.ffm
FileMaxSize 5M
Launch ffmpeg -i mmsh://tempserv.cam/vid1
ACL allow 127.0.0.1
</Feed>
<Stream rat1.mpg>
Feed feed1.ffm
Format rtp
NoAudio
VideoBitRate 56k
VideoBufferSize 40
VideoFrameRate 12
VideoSize 176x144
VideoGopSize 12
VideoCodec libx264
AVPresetVideo baseline
</Stream>If anyone can advise me how to fix it, or at least indicate an mistake, I will be grateful.
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ffmpeg fade filter installed but not working ?
4 novembre 2011, par AsthaI have php 5.1.6 running on my CentOS 5 server running Apache 2.2.3
I installed ffmpeg library and my aim is to covert a set of images into a slideshow with the fadein/fade out effect per image swap.
Command ffmpeg says :
`FFmpeg version SVN-r26402, Copyright (c) 2000-2011 the FFmpeg developers
built on Sep 12 2011 03:37:39 with gcc 4.1.2 20080704 (Red Hat 4.1.2-50)
configuration:
libavutil 50.36. 0 / 50.36. 0
libavcore 0.16. 1 / 0.16. 1
libavcodec 52.108. 0 / 52.108. 0
libavformat 52.93. 0 / 52.93. 0
libavdevice 52. 2. 3 / 52. 2. 3
libavfilter 1.74. 0 / 1.74. 0
libswscale 0.12. 0 / 0.12. 0
Hyper fast Audio and Video encoder
usage: ffmpeg [options] [[infile options] -i infile]... {[outfile options] outfile}...
Use -h to get full help or, even better, run 'man ffmpeg'and command ffmpeg -filters prints :
FFmpeg version SVN-r26402, Copyright (c) 2000-2011 the FFmpeg developers
built on Sep 12 2011 03:37:39 with gcc 4.1.2 20080704 (Red Hat 4.1.2-50)
configuration:
libavutil 50.36. 0 / 50.36. 0
libavcore 0.16. 1 / 0.16. 1
libavcodec 52.108. 0 / 52.108. 0
libavformat 52.93. 0 / 52.93. 0
libavdevice 52. 2. 3 / 52. 2. 3
libavfilter 1.74. 0 / 1.74. 0
libswscale 0.12. 0 / 0.12. 0
Filters:
anull Pass the source unchanged to the output.
anullsrc Null audio source, never return audio frames.
anullsink Do absolutely nothing with the input audio.
copy Copy the input video unchanged to the output.
crop Crop the input video to width:height:x:y.
drawbox Draw a colored box on the input video.
fifo Buffer input images and send them when they are requested.
format Convert the input video to one of the specified pixel formats.
gradfun Debands video quickly using gradients.
hflip Horizontally flip the input video.
noformat Force libavfilter not to use any of the specified pixel formats for the input to the next filter.
null Pass the source unchanged to the output.
overlay Overlay a video source on top of the input.
pad Pad input image to width:height[:x:y[:color]] (default x and y: 0, default color: black).
pixdesctest Test pixel format definitions.
scale Scale the input video to width:height size and/or convert the image format.
setdar Set the frame display aspect ratio.
setpts Set PTS for the output video frame.
setsar Set the pixel sample aspect ratio.
settb Set timebase for the output link.
slicify Pass the images of input video on to next video filter as multiple slices.
transpose Transpose input video.
unsharp Sharpen or blur the input video.
vflip Flip the input video vertically.
buffer Buffer video frames, and make them accessible to the filterchain.
color Provide an uniformly colored input, syntax is: [color[:size[:rate]]]
nullsrc Null video source, never return images.
nullsink Do absolutely nothing with the input video.`firstly my ffmpeg was not having fade filter because it was giving error
fade: filter not found
so i installed the patch created vf_fade.c and made corresponding changes to Makefile and allfilters.c file of directory libavfilters in ffmpeg. configured it again then also ran commands 'make' and 'make install' Restarted the server but still its showing the same error
fade: filter not found
what should i do next ? if any more details needed please ask and all the helps and ideas and links will be appreciated.