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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 (...) -
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 (...) -
XMP PHP
13 mai 2011, parDixit Wikipedia, XMP signifie :
Extensible Metadata Platform ou XMP est un format de métadonnées basé sur XML utilisé dans les applications PDF, de photographie et de graphisme. Il a été lancé par Adobe Systems en avril 2001 en étant intégré à la version 5.0 d’Adobe Acrobat.
Étant basé sur XML, il gère un ensemble de tags dynamiques pour l’utilisation dans le cadre du Web sémantique.
XMP permet d’enregistrer sous forme d’un document XML des informations relatives à un fichier : titre, auteur, historique (...)
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Cannot Play Video Output of Libavcodec (ffmpeg) Encoding Example
29 octobre 2019, par user3707763From FFMPEG’s GitHub, I use the
encode_video.c
to generate a 1 second video. Here is the example in question : https://github.com/FFmpeg/FFmpeg/blob/master/doc/examples/encode_video.cI compile with :
gcc -Wall -o ffencode encode_video.c -lavcodec -lavutil -lz -lm
Clean compile, zero warnings.
I test the program by running :
./ffencode video.mp4 libx264
Lots of stats printed out (expected based on source code) as well as ffmpeg logs, but ultimately no errors or warnings.
However, then the generated output
video.mp4
, can only be played byffplay
, and VLC Player (as well as Google Chrome) fail to play the video.Playing it via
vlc
command line actually prints :[00007ffd3550fec0] main libvlc: Running vlc with the default interface. Use 'cvlc' to use vlc without interface.
TagLib: MP4: Invalid atom size
TagLib: MP4: Invalid atom size
TagLib: MP4: Invalid atom sizeLooking at
ffprobe
output, the bitrate and duration fields are empty :Input #0, h264, from 'video.mp4':
Duration: N/A, bitrate: N/A
Stream #0:0: Video: h264 (High), yuv420p(progressive), 352x288, 25 fps, 25 tbr, 1200k tbn, 50 tbcI am using ffmpeg 4.1 with the following configuration :
ffprobe version 4.1 Copyright (c) 2007-2018 the FFmpeg developers
built with Apple LLVM version 10.0.0 (clang-1000.11.45.5)
configuration: --prefix=/usr/local/Cellar/ffmpeg/4.1 --enable-shared --enable-pthreads --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-ffplay --enable-gpl --enable-libmp3lame --enable-libopus --enable-libsnappy --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-libxvid --enable-lzma --enable-opencl --enable-videotoolbox
libavutil 56. 22.100 / 56. 22.100
libavcodec 58. 35.100 / 58. 35.100
libavformat 58. 20.100 / 58. 20.100
libavdevice 58. 5.100 / 58. 5.100
libavfilter 7. 40.101 / 7. 40.101
libavresample 4. 0. 0 / 4. 0. 0
libswscale 5. 3.100 / 5. 3.100
libswresample 3. 3.100 / 3. 3.100
libpostproc 55. 3.100 / 55. 3.100Any ideas how to fix this ? It is pretty surprising to see an API’s official example to be lacking such basic information.
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ffmpeg get orientation inverted
16 novembre 2018, par FaabassI getting the resolution for a video, but ffmpeg/ffprobe is getting inverted.. Always the biggest number is the width.
I mean, it doesn’t matter if I’m getting the resolution of a vertical or horizontal video, I’m always getting for example 640x480 when it should be 480x640. Also I tried with the aspect ratio as 4:3 instead of 3:4
ffprobe -v error -select_streams v:0 -show_entries stream=width,height -of csv=p=0 original.mp4
So my question is how I can get the right resolution or at least the orientation I need to know if the video is horizontal or vertical.
See full response :
ffprobe -select_streams v:0 -show_entries stream=width,height -of csv=p=0 original.mp4
ffprobe version N-86781-gd8f1982639-static http://johnvansickle.com/ffmpeg/ Copyright (c) 2007-2017 the FFmpeg developers
built with gcc 5.4.1 (Debian 5.4.1-11) 20170519
configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc-5 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gray --enable-libass --enable-libfreetype --enable-libfribidi --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libzimg
libavutil 55. 67.100 / 55. 67.100
libavcodec 57.100.104 / 57.100.104
libavformat 57. 75.100 / 57. 75.100
libavdevice 57. 7.100 / 57. 7.100
libavfilter 6. 95.100 / 6. 95.100
libswscale 4. 7.101 / 4. 7.101
libswresample 2. 8.100 / 2. 8.100
libpostproc 54. 6.100 / 54. 6.100
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x4ff7e60] sample aspect ratio already set to 1:1, ignoring 'pasp' atom (65536:65536)
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'original.mp4':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: isommp42
creation_time : 2018-11-12T22:15:04.000000Z
com.android.version: 7.0
Duration: 00:01:10.30, start: 0.000000, bitrate: 9497 kb/s
Stream #0:0(eng): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p(tv, smpte170m/bt470bg/smpte170m), 1280x720, 9365 kb/s, SAR 1:1 DAR 16:9, 23.97 fps, 24 tbr, 90k tbn, 180k tbc (default)
Metadata:
rotate : 270
creation_time : 2018-11-12T22:15:04.000000Z
handler_name : VideoHandle
Side data:
displaymatrix: rotation of 90.00 degrees
Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)
Metadata:
creation_time : 2018-11-12T22:15:04.000000Z
handler_name : SoundHandle
1280,720 -
How to remove everything but video and stereo audio stream from video with ffmpeg ?
20 octobre 2019, par user3776738I’m trying to get a clean h264 video from a mkv file.With clean I mean that it has only a video stream plus stereo sound.
The inputfile can have multiple channels and subtitles and other unknown stuff, which I don’t need.
I’m using ffmpeg with this command :ffmpeg -i "input.mkv" -ac 2 -vf scale=trunc(oh*a/2)*2:480 -c:v libx264 "output.mp4"
This should give me a 480p video with stereo sound,which I require.
I tried multiple -map or dispositions commands with ffmpeg to remove the subtitles whithout any success.How can I remove everything but video and stereo stream with ffmpeg and get a 480p stereo sound video ?
Edit :
Output of ffmpeg - "input.mkv" -i "output.mp4" :ffmpeg -i "input.mkv" -i "output.mp4"
ffmpeg version N-91972-gbd10c1e9a8 Copyright (c) 2000-2018 the FFmpeg developer
built with gcc 8.2.1 (GCC) 20180813
configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconf
g --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-li
freetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-am
wb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy -
enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-
ibwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 -
enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --e
able-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --e
able-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --
nable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --ena
le-avisynth
libavutil 56. 19.101 / 56. 19.101
libavcodec 58. 30.100 / 58. 30.100
libavformat 58. 18.101 / 58. 18.101
libavdevice 58. 4.103 / 58. 4.103
libavfilter 7. 32.100 / 7. 32.100
libswscale 5. 2.100 / 5. 2.100
libswresample 3. 2.100 / 3. 2.100
libpostproc 55. 2.100 / 55. 2.100
[hevc @ 00000000004a5940] Invalid default display window
Input #0, matroska,webm, from 'input.mkv':
Metadata:
title : Elysium (2013)
encoder : libebml v1.3.3 + libmatroska v1.4.4
creation_time : 2016-01-05T22:30:41.000000Z
Duration: 00:01:02.73, start: 0.166000, bitrate: 53638 kb/s
Chapter #0:0: start 0.000000, end 62.896000
Metadata:
title : 00:00:00.000
Stream #0:0(eng): Video: hevc (Main 10), yuv420p10le(tv), 3840x1606, SAR 1:
DAR 1920:803, 23.98 fps, 23.98 tbr, 1k tbn, 23.98 tbc (default)
Metadata:
title : Elysium (2013) - Release for ULTRAHDCLUB
BPS : 51036975
BPS-eng : 51036975
DURATION : 00:01:02.604000000
DURATION-eng : 00:01:02.604000000
NUMBER_OF_FRAMES: 1501
NUMBER_OF_FRAMES-eng: 1501
NUMBER_OF_BYTES : 399389852
NUMBER_OF_BYTES-eng: 399389852
_STATISTICS_WRITING_APP: mkvmerge v8.7.0 ('All of the above') 64bit
_STATISTICS_WRITING_APP-eng: mkvmerge v8.7.0 ('All of the above') 64bit
_STATISTICS_WRITING_DATE_UTC: 2016-01-05 22:30:41
_STATISTICS_WRITING_DATE_UTC-eng: 2016-01-05 22:30:41
_STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
_STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
Stream #0:1(eng): Audio: dts (DTS-HD MA), 48000 Hz, 7.1, s16p (default)
Metadata:
title : DTS-HD MA 7.1 - Blu-ray CEE
BPS : 2706639
BPS-eng : 2706639
DURATION : 00:01:02.561000000
DURATION-eng : 00:01:02.561000000
NUMBER_OF_FRAMES: 5865
NUMBER_OF_FRAMES-eng: 5865
NUMBER_OF_BYTES : 21166260
NUMBER_OF_BYTES-eng: 21166260
_STATISTICS_WRITING_APP: mkvmerge v8.7.0 ('All of the above') 64bit
_STATISTICS_WRITING_APP-eng: mkvmerge v8.7.0 ('All of the above') 64bit
_STATISTICS_WRITING_DATE_UTC: 2016-01-05 22:30:41
_STATISTICS_WRITING_DATE_UTC-eng: 2016-01-05 22:30:41
_STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
_STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
Input #1, mov,mp4,m4a,3gp,3g2,mj2, from 'output.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
title : Elysium (2013)
encoder : Lavf58.18.101
Duration: 00:01:02.73, start: 0.000000, bitrate: 1671 kb/s
Chapter #1:0: start 0.000000, end 62.730000
Metadata:
title : 00:00:00.000
Stream #1:0(eng): Video: h264 (High 10) (avc1 / 0x31637661), yuv420p10le, 1
46x480 [SAR 2030:2027 DAR 38773:16216], 1543 kb/s, SAR 15563:15540 DAR 1920:803
23.98 fps, 23.98 tbr, 24k tbn, 47.95 tbc (default)
Metadata:
handler_name : VideoHandler
Stream #1:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fl
p, 128 kb/s (default)
Metadata:
handler_name : SoundHandler
Stream #1:2(eng): Data: bin_data (text / 0x74786574), 0 kb/s
Metadata:
handler_name : SubtitleHandler
At least one output file must be specified