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Autres articles (63)
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Personnaliser en ajoutant son logo, sa bannière ou son image de fond
5 septembre 2013, parCertains 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 ;
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MediaSPIP : Modification des droits de création d’objets et de publication définitive
11 novembre 2010, parPar défaut, MediaSPIP permet de créer 5 types d’objets.
Toujours par défaut les droits de création et de publication définitive de ces objets sont réservés aux administrateurs, mais ils sont bien entendu configurables par les webmestres.
Ces droits sont ainsi bloqués pour plusieurs raisons : parce que le fait d’autoriser à publier doit être la volonté du webmestre pas de l’ensemble de la plateforme et donc ne pas être un choix par défaut ; parce qu’avoir un compte peut servir à autre choses également, (...) -
Publier sur MédiaSpip
13 juin 2013Puis-je poster des contenus à partir d’une tablette Ipad ?
Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir
Sur d’autres sites (10583)
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Merge video files using Concat filter in FFmpeg
8 juillet 2013, par vijayI am using FFmpeg to concat video files of different codecs in my android application.
I read the FFmpeg documentation and tried the following things.1. ffmpeg -i "concat:input1.mpg|input2.mpg" -c copy output.mp4
(works only for mpg files)2. ffmpeg -i 1.mp4 -c copy -bsf dump_extra 1.ts
ffmpeg -i 2.mp4 -c copy -bsf dump_extra 2.ts
ffmpeg -i "concat:1.ts|2.ts" -c copy output.mp4 (works for mp4 files)I tried both the methods for 3gp files but it throws an error in stream filters.The second method stores the .ts files in device that should not be done and also i lost the quality of the video.
When i googled it out i found that FFmpeg provides a way to concat files with different codecs.So i tried the following command to this in a single step without storing files in device.
fmpeg -i 1.mp4 -i 2.3gp -i 3.mpg -filter_complex '[0:0] [0:1] [1:0] [1:1]
[2:0] [2:1] concat=n=3:v=1:a=1 [a] [v] ' -map '[a]' -map '[v]' -c copy output.mp4It throws the following exception :
ffmpeg version 1.2.1 Copyright (c) 2000-2013 the FFmpeg developers
built on Jun 25 2013 20:34:51 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)
configuration:
libavutil 52. 18.100 / 52. 18.100
libavcodec 54. 92.100 / 54. 92.100
libavformat 54. 63.104 / 54. 63.104
libavdevice 54. 3.103 / 54. 3.103
libavfilter 3. 42.103 / 3. 42.103
libswscale 2. 2.100 / 2. 2.100
libswresample 0. 17.102 / 0. 17.102
F.mp4: No such file or directory
tsk@tsk:~/Android/Backups/android-ffmpeg-x264/Project/jni$ ffmpeg -i 1.mp4 -i 2.mp4 -filter_complex '[0:1] [0:0] [1:1] [1:0] concat=n=2:v=1:a=1 [v] [a]' -map '[v]' -map '[a]' output.mp4
ffmpeg version 1.2.1 Copyright (c) 2000-2013 the FFmpeg developers
built on Jun 25 2013 20:34:51 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)
configuration:
libavutil 52. 18.100 / 52. 18.100
libavcodec 54. 92.100 / 54. 92.100
libavformat 54. 63.104 / 54. 63.104
libavdevice 54. 3.103 / 54. 3.103
libavfilter 3. 42.103 / 3. 42.103
libswscale 2. 2.100 / 2. 2.100
libswresample 0. 17.102 / 0. 17.102
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '1.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: mp41
creation_time : 1970-01-01 00:00:00
Duration: 00:00:04.04, start: 0.000000, bitrate: 1457 kb/s
Stream #0:0(und): Video: mpeg4 (Simple Profile) (mp4v / 0x7634706D), yuv420p, 640x480 [SAR 1:1 DAR 4:3], 1454 kb/s, SAR 349:320 DAR 349:240, 25 fps, 25 tbr, 25 tbn, 25 tbc
Metadata:
creation_time : 1970-01-01 00:00:00
handler_name : VideoHandler
Input #1, mov,mp4,m4a,3gp,3g2,mj2, from '2.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: mp41
creation_time : 1970-01-01 00:00:00
Duration: 00:00:04.04, start: 0.000000, bitrate: 1498 kb/s
Stream #1:0(und): Video: mpeg4 (Simple Profile) (mp4v / 0x7634706D), yuv420p, 640x480 [SAR 1:1 DAR 4:3], 1495 kb/s, SAR 349:320 DAR 349:240, 25 fps, 25 tbr, 25 tbn, 25 tbc
Metadata:
creation_time : 1970-01-01 00:00:00
handler_name : VideoHandler
Stream specifier ':1' in filtergraph description [0:1] [0:0] [1:1] [1:0] concat=n=2:v=1:a=1 [v] [a] matches no streams.I googled out but found no solution yet.
Any help is appreciated.
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FFmpeg encoding fails with codec - but works without
7 juillet 2013, par NielsI have made an install with ffmpeginstaller..
This is the version installed:
ffmpeg version N-54523-ga71832f-syslint
built on Jul 7 2013 12:16:34 with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-3)
configuration: --prefix=/usr/local/cpffmpeg --enable-shared --enable-nonfree --enable-gpl --enable-pthread s --enable-libopencore-amrnb --enable-decoder=liba52 --enable- libopencore-amrwb --enable-libfaac --enable- libmp3lame --enable-libtheora --enable-libvorbis --enable-libx264 --enable-libxvid --extra-cflags=-I/usr/l ocal/cpffmpeg/include/ --extra-ldflags=-L/usr/local/cpffmpeg/lib --enable-version3 --extra-version=syslint
libavutil 52. 38.100 / 52. 38.100
libavcodec 55. 18.102 / 55. 18.102
libavformat 55. 11.101 / 55. 11.101
libavdevice 55. 2.100 / 55. 2.100
libavfilter 3. 78.103 / 3. 78.103
libswscale 2. 3.100 / 2. 3.100
libswresample 0. 17.102 / 0. 17.102
libpostproc 52. 3.100 / 52. 3.100This works :
ffmpeg -i FreeScreenVideoRecorderVideo.avi -ar 22050 -ab 32 -f mp4 -s 1280x720 video3.mp4
Working with codec does not work :
ffmpeg -y -i FreeScreenVideoRecorderVideo.avi -r 30000/1001 -b 2M -bt 4M -vcodec libx264 -pass 1 -vpre fastfirstpass -an output.mp4
What can i be doing wrong ?
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Using ffmpeg in bash
20 août 2013, par Benjamin KingI'm trying to make a bash script to transcode .wav files to mp3 (with lame V0 preset) within a directory. Here's what I have so far
#!/bin/bash
#
for abc in *.wav; do
name=${abc%.*}
echo "$name"
ffmpeg -i "$abc" -ac 2 -f wav - | lame -V 0 - "$name.mp3"
done
#Where the first do line cuts out the extension so I can use the file name later.
I've tested the ffmpeg command on a single file but once I include it in the for loop I get the following error (for the last track) :
10 Artist - track
lame: excess arg Artist
ffmpeg version 0.8.6-4:0.8.6-0ubuntu0.12.04.1, Copyright (c) 2000-2013 the Libav developers
built on Apr 2 2013 17:00:59 with gcc 4.6.3
10: No such file or directoryI'm not sure why there is an excess argument for the lame line, or why ffmpeg is looking only at a file named "10". Is there something I'm missing ?
Many thanks for any help