
Recherche avancée
Médias (1)
-
Richard Stallman et le logiciel libre
19 octobre 2011, par
Mis à jour : Mai 2013
Langue : français
Type : Texte
Autres articles (72)
-
Participer à sa traduction
10 avril 2011Vous pouvez nous aider à améliorer les locutions utilisées dans le logiciel ou à traduire celui-ci dans n’importe qu’elle nouvelle langue permettant sa diffusion à de nouvelles communautés linguistiques.
Pour ce faire, on utilise l’interface de traduction de SPIP où l’ensemble des modules de langue de MediaSPIP sont à disposition. ll vous suffit de vous inscrire sur la liste de discussion des traducteurs pour demander plus d’informations.
Actuellement MediaSPIP n’est disponible qu’en français et (...) -
Configurer la prise en compte des langues
15 novembre 2010, parAccéder à la configuration et ajouter des langues prises en compte
Afin de configurer la prise en compte de nouvelles langues, il est nécessaire de se rendre dans la partie "Administrer" du site.
De là, dans le menu de navigation, vous pouvez accéder à une partie "Gestion des langues" permettant d’activer la prise en compte de nouvelles langues.
Chaque nouvelle langue ajoutée reste désactivable tant qu’aucun objet n’est créé dans cette langue. Dans ce cas, elle devient grisée dans la configuration et (...) -
Le profil des utilisateurs
12 avril 2011, parChaque utilisateur dispose d’une page de profil lui permettant de modifier ses informations personnelle. Dans le menu de haut de page par défaut, un élément de menu est automatiquement créé à l’initialisation de MediaSPIP, visible uniquement si le visiteur est identifié sur le site.
L’utilisateur a accès à la modification de profil depuis sa page auteur, un lien dans la navigation "Modifier votre profil" est (...)
Sur d’autres sites (8040)
-
USB webcam streaming in ARM board (i.MX6)
5 septembre 2017, par TitusI want to streaming the camera via NETWORK. I have connected the USB webcam to i.MX6 board and want to stream in Ubuntu14.04/16.04 via network.
Incidentally, I have installed the gstreamer and ffmpeg tools for this in i.MX6 board.
Also I am able to stream USB webcam within Ubuntu14.04 PC using the following ffmpeg commands. But it’s also not working if I use ffplay in other Ubuntu16.04 and I am not sure why (both are same ffmpeg versions).
ffmpeg -f v4l2 -i /dev/video0 -preset ultrafast -vcodec libx264 -tune zerolatency -b 900k -f mpegts udp://192.168.0.37:1234
ffplay udp://192.168.0.37:1234Ubuntu 16.06 : (NOT WORKING)
tus@titus-PC:~/workdir$ ffplay udp://192.168.0.105:1234
ffplay version 2.8.11-0ubuntu0.16.04.1 Copyright (c) 2003-2017 the FFmpeg developers
built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.4) 20160609
configuration: --prefix=/usr --extra-version=0ubuntu0.16.04.1 --build-suffix=-ffmpeg --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --cc=cc --cxx=g++ --enable-gpl --enable-shared --disable-stripping --disable-decoder=libopenjpeg --disable-decoder=libschroedinger --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librtmp --enable-libschroedinger --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzvbi --enable-openal --enable-opengl --enable-x11grab --enable-libdc1394 --enable-libiec61883 --enable-libzmq --enable-frei0r --enable-libx264 --enable-libopencv
libavutil 54. 31.100 / 54. 31.100
libavcodec 56. 60.100 / 56. 60.100
libavformat 56. 40.101 / 56. 40.101
libavdevice 56. 4.100 / 56. 4.100
libavfilter 5. 40.101 / 5. 40.101
libavresample 2. 1. 0 / 2. 1. 0
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 2.101 / 1. 2.101
libpostproc 53. 3.100 / 53. 3.100
nan : 0.000 fd= 0 aq= 0KB vq= 0KB sq= 0B f=0/0Ubuntu 14.04 : (WORKING)
titus@titus-laptop:~$
titus@titus-laptop:~$ ffplay udp://127.0.0.1:1234
ffplay version 3.3.2 Copyright (c) 2003-2017 the FFmpeg developers
built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04.3)
configuration: --extra-libs=-ldl --prefix=/opt/ffmpeg --mandir=/usr/share/man --enable-avresample --disable-debug --enable-nonfree --enable-gpl --enable-version3 --enable-libopencore-amrnb --enable-libopencore-amrwb --disable-decoder=amrnb --disable-decoder=amrwb --enable-libpulse --enable-libfreetype --enable-gnutls --enable-libx264 --enable-libx265 --enable-libfdk-aac --enable-libvorbis --enable-libtheora --enable-libmp3lame --enable-libopus --enable-libvpx --enable-libspeex --enable-libass --enable-avisynth --enable-libsoxr --enable-libxvid --enable-libvidstab --enable-libwavpack --enable-nvenc
libavutil 55. 58.100 / 55. 58.100
libavcodec 57. 89.100 / 57. 89.100
libavformat 57. 71.100 / 57. 71.100
libavdevice 57. 6.100 / 57. 6.100
libavfilter 6. 82.100 / 6. 82.100
libavresample 3. 5. 0 / 3. 5. 0
libswscale 4. 6.100 / 4. 6.100
libswresample 2. 7.100 / 2. 7.100
libpostproc 54. 5.100 / 54. 5.100
[h264 @ 0xb0621660] non-existing PPS 0 referenced sq= 0B f=0/0
Last message repeated 1 times
[h264 @ 0xb0621660] decode_slice_header error
[h264 @ 0xb0621660] non-existing PPS 0 referenced
[h264 @ 0xb0621660] decode_slice_header error
[h264 @ 0xb0621660] non-existing PPS 0 referenced
[h264 @ 0xb0621660] decode_slice_header error
[h264 @ 0xb0621660] non-existing PPS 0 referenced
[h264 @ 0xb0621660] decode_slice_header error
[h264 @ 0xb0621660] no frame!
[h264 @ 0xb0621660] non-existing PPS 0 referenced sq= 0B f=0/0
1751.47 M-V: -0.021 fd= 0 aq= 0KB vq= 11KB sq= 0B f=0/0
1751.63 M-V: -0.020 fd= 0 aq= 0KB vq= 11KB sq= 0B f=0/0
1751.80 M-V: -0.020 fd= 0 aq= 0KB vq= 11KB sq= 0B f=0/0Finally I want to stream with different ARM boards. Am also not able to build ffplay command. Same issue with raspberry pi too. I am doing something wrong or misunderstood something here ?
-
Append text to ffmpeg/avconv command line output to a text file
29 août 2017, par AliI’m using follow command to add a watermark image and also convert a video file, then for monitoring the convert process, I check the output text file.
avconv -i input.mp4 -vf "movie=watermark.png [watermark]; [in][watermark] overlay=10:10 [out]" -acodec copy -y output.swf 1> proccess_status.txt 2>&1
Here is a part of proccess_status.txt :
avconv version 11.9-6:11.9-1~deb8u1, Copyright (c) 2000-2017 the Libav developers
built on Apr 23 2017 21:47:31 with gcc 4.9.2 (Debian 4.9.2-10)
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/srv/site.com/public/htdocs/videos/8_e7d16e42ec66dc66fa.mp4':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: mp41isom
...
Stream mapping:
Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
Stream #0:1 -> #0:1 (copy)
Press ctrl-c to stop encoding
frame= 46 fps= 0 q=0.0 size= 0kB time=1.58 bitrate= 0.2kbits/s
frame= 57 fps= 53 q=29.0 size= 27kB time=0.13 bitrate=1633.1kbits/s
frame= 69 fps= 44 q=29.0 size= 72kB time=0.53 bitrate=1108.8kbits/s
frame= 82 fps= 39 q=29.0 size= 110kB time=0.97 bitrate= 931.8kbits/s
...
[libx264 @ 0x15475e0] Weighted P-Frames: Y:10.1% UV:8.0%
[libx264 @ 0x15475e0] ref P L0: 72.3% 9.6% 13.3% 4.7% 0.0%
[libx264 @ 0x15475e0] ref B L0: 83.1% 14.7% 2.1%
[libx264 @ 0x15475e0] ref B L1: 93.3% 6.7%
[libx264 @ 0x15475e0] kb/s:861.12I want to know how could I add an additional text to the beginning of output text file, or is that possible to append output of ffmpeg command line to an existing file ?
-
ffmpeg extremely slow (synology nas)
29 août 2017, par TheSpaceSheepI’m trying to use ffmpeg to convert audio files on a synology nas which runs under linux, but it’s taking hours -literally- to convert a 40MB file.
I’ve also installed ffmpeg on my pc where i can convert the same file in a few seconds.
Maybe the CPU is too slow (it’s an ARMv7 Processor rev 1 (v7l)), but could it make that much of a difference ?
Even with the -preset ultrafast option, ffmpeg converts at a speed of 0.6 to 0.7 (against 67 on my laptop !)
Any idea where this problem could come from ?
Here is the command line with the full output :
ffmpeg -i audio_tmp.m4a -preset ultrafast audio_converted.mp3
ffmpeg version 3.3.3-static http://johnvansickle.com/ffmpeg/ Copyright (c) 2000 -2017 the FFmpeg developers
built with gcc 6.4.0 (Debian 6.4.0-2) 20170724
configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc-6 --enabl e-fontconfig --enable-frei0r --enable-gnutls --enable-gray --enable-libass --ena ble-libfreetype --enable-libfribidi --enable-libmp3lame --enable-libopencore-amr nb --enable-libopencore-amrwb --enable-libopus --enable-librtmp --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libvidstab --enable-libvo-amrwben c --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable- libxvid
libavutil 55. 58.100 / 55. 58.100
libavcodec 57. 89.100 / 57. 89.100
libavformat 57. 71.100 / 57. 71.100
libavdevice 57. 6.100 / 57. 6.100
libavfilter 6. 82.100 / 6. 82.100
libswscale 4. 6.100 / 4. 6.100
libswresample 2. 7.100 / 2. 7.100
libpostproc 54. 5.100 / 54. 5.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'audio_tmp.m4a':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2mp41
encoder : Lavf57.71.100
Duration: 00:38:37.07, start: 0.000000, bitrate: 126 kb/s
Stream #0:0(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, flt p, 125 kb/s (default)
Metadata:
handler_name : SoundHandler
Codec AVOption preset (Configuration preset) specified for output file #0 (audio _converted.mp3) has not been used for any stream. The most likely reason is eith er wrong type (e.g. a video option with no video streams) or that it is a privat e option of some encoder which was not actually used for any stream.
Stream mapping:
Stream #0:0 -> #0:0 (aac (native) -> mp3 (libmp3lame))
Press [q] to stop, [?] for help
Output #0, mp3, to 'audio_converted.mp3':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2mp41
TSSE : Lavf57.71.100
Stream #0:0(und): Audio: mp3 (libmp3lame), 44100 Hz, stereo, fltp (default)
Metadata:
handler_name : SoundHandler
encoder : Lavc57.89.100 libmp3lame
size= 329kB time=00:00:21.00 bitrate= 128.3kbits/s speed=0.681xThanks for helping me :)