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Exemple de boutons d’action pour une collection collaborative
27 février 2013, par
Mis à jour : Mars 2013
Langue : français
Type : Image
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Exemple de boutons d’action pour une collection personnelle
27 février 2013, par
Mis à jour : Février 2013
Langue : English
Type : Image
Autres articles (60)
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Contribute to documentation
13 avril 2011Documentation is vital to the development of improved technical capabilities.
MediaSPIP welcomes documentation by users as well as developers - including : critique of existing features and functions articles contributed by developers, administrators, content producers and editors screenshots to illustrate the above translations of existing documentation into other languages
To contribute, register to the project users’ mailing (...) -
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 (...) -
Récupération d’informations sur le site maître à l’installation d’une instance
26 novembre 2010, parUtilité
Sur le site principal, une instance de mutualisation est définie par plusieurs choses : Les données dans la table spip_mutus ; Son logo ; Son auteur principal (id_admin dans la table spip_mutus correspondant à un id_auteur de la table spip_auteurs)qui sera le seul à pouvoir créer définitivement l’instance de mutualisation ;
Il peut donc être tout à fait judicieux de vouloir récupérer certaines de ces informations afin de compléter l’installation d’une instance pour, par exemple : récupérer le (...)
Sur d’autres sites (5491)
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webm video - it can not be copy to cut a correct time part for ffmpeg command(without re-encode) [closed]
15 mars 2024, par DanielHsuCommand Goal :


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- fast copy video's part
- no re-encode with libvpx






Linux command below :
ffmpeg -ss 00:01:00 -to 00:02:00 -i input.webm -c copy output.webm


command's process details :


ffmpeg version 6.1.1 Copyright (c) 2000-2023 the FFmpeg developers built with gcc 9 (Ubuntu 9.4.0-1ubuntu1~20.04.1) configuration:
--enable-libvpx libavutil 58. 29.100 / 58. 29.100 libavcodec 60. 31.102 / 60. 31.102 libavformat 60. 16.100 / 60. 16.100 libavdevice 60. 3.100 / 60. 3.100 libavfilter 9. 12.100 / 
9. 12.100 libswscale 7. 5.100 / 7. 5.100 libswresample 4. 12.100 / 4. 12.100 Input #0, matroska,webm, from 'input.webm': Metadata:
 title : FFmpeg
 ENCODER : Lavf58.29.100 Duration: 00:06:04.43, start: 0.000000, bitrate: 2487 kb/s Stream #0:0: Video: vp8, yuv420p(tv, bt470bg/unknown/unknown, progressive), 1280x720, SAR 1:1 DAR 16:9, 1k tbr, 1k tbn (default)
 Metadata:
 DURATION : 00:06:04.432000000 Output #0, webm, to 'output.webm': Metadata:
 title : FFmpeg
 encoder : Lavf60.16.100 Stream #0:0: Video: vp8, yuv420p(tv, bt470bg/unknown/unknown, progressive), 1280x720 [SAR 1:1 DAR 16:9], q=2-31, 1k tbr, 1k tbn (default)
 Metadata:
 DURATION : 00:06:04.432000000 Stream mapping: Stream #0:0 -> #0:0 (copy) Press [q] to stop, [?] for help [out#0/webm @ 0x5609ee9bb840] video:35912kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.069370% size= 35937kB time=00:00:59.96 bitrate=4909.2kbits/s speed= 211x



command usage's result :
output.webm always start from input.webm's 00:00:00 to end input.webm's 00:01:00
(it should be start from input.webm's 00:01:00 to end input.webm's 00:02:00 )


input.webm format details from mediainfo tool :




General Count : 331 Count of stream
of this kind : 1 Kind of stream

 : General Kind of stream : General Stream
identifier : 0 Count of video streams

 : 1 Video_Format_List : VP8
Video_Format_WithHint_List : VP8 Codecs Video

 : VP8 Complete name :
pure_film/65ea641a4075c92236151349_video.webm Folder name

 : pure_film File name extension :
65ea641a4075c92236151349_video.webm File name

 : 65ea641a4075c92236151349_video File extension

 : webm Format : WebM Format

 : WebM Format/Url :
http://www.webmproject.org/ Format/Extensions usually used :
webm Commercial name : WebM Format version

 : Version 2 Internet media type : video/webm File
size : 113301943 File size

 : 108 MiB File size : 108 MiB File size
 : 108 MiB File size : 108 MiB File size
 : 108.1 MiB Duration : 364432 Duration
 : 6 min 4 s Duration : 6 min 4 s 432
ms Duration : 6 min 4 s Duration

 : 00:06:04.432 Duration : 00:06:04.432
Overall bit rate : 2487201 Overall bit rate

 : 2 487 kb/s Stream size : 4801069 Stream
size : 4.58 MiB (4%) Stream size

 : 5 MiB Stream size : 4.6 MiB Stream size
 : 4.58 MiB Stream size : 4.579 MiB Stream
size : 4.58 MiB (4%) Proportion of this
stream : 0.04237 IsStreamable

 : Yes Title : FFmpeg Movie name

 : FFmpeg File last modification date : UTC 2024-03-08
01:41:47 File last modification date (local) : 2024-03-08
09:41:47 Writing application : Lavf58.29.100
Writing application : Lavf58.29.100 Writing
library : Lavf58.29.100 Writing library

 : Lavf58.29.100

Video Count : 377 Count of stream
of this kind : 1 Kind of stream

 : Video Kind of stream : Video Stream
identifier : 0 StreamOrder

 : 0 ID : 1 ID

 : 1 Unique ID : 1 Format

 : VP8 Format : VP8 Format/Url

 : http://www.webmproject.org/ Commercial name

 : VP8 Codec ID : V_VP8 Codec ID/Url

 : http://www.webmproject.org/ Duration

 : 364432.000000 Duration : 6 min 4 s
Duration : 6 min 4 s 432 ms Duration

 : 6 min 4 s Duration : 00:06:04.432
Duration : 00:06:04.432 Bit rate

 : 2381808 Bit rate : 2 382 kb/s Width
 : 1280 Width : 1 280 pixels Height
 : 720 Height : 720 pixels Pixel
aspect ratio : 1.000 Display aspect ratio

 : 1.778 Display aspect ratio : 16:9 Frame rate
mode : VFR Frame rate mode

 : Variable Color space : YUV Compression
mode : Lossy Compression mode

 : Lossy Delay : 0 Delay

 : 00:00:00.000 Delay, origin : Container
Delay, origin : Container Stream size

 : 108500874 Stream size : 103 MiB (96%)
Stream size : 103 MiB Stream size

 : 103 MiB Stream size : 103 MiB Stream
size : 103.5 MiB Stream size

 : 103 MiB (96%) Proportion of this stream : 0.95763
Default : Yes Default

 : Yes Forced : No Forced

 : No colour_description_present : Yes
colour_description_present_Source : Container Color range

 : Limited colour_range_Source : Container Matrix
coefficients : BT.470 System B/G
matrix_coefficients_Source : Container



How to make the output.webm be in correct time range(00:01:00 00:02:00) ????


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avformat/rcwtdec : add RCWT Closed Captions demuxer
2 avril 2024, par Marth64avformat/rcwtdec : add RCWT Closed Captions demuxer
RCWT (Raw Captions With Time) is a format native to ccextractor,
a commonly used OSS tool for processing 608/708 Closed Captions (CC).
RCWT can be used to archive the original extracted CC bitstream.
The muxer was added in January 2024. In this commit, add the demuxer.One can now demux RCWT files for rendering in ccaption_dec or interop
with ccextractor (which produces RCWT). Using the muxer/demuxer combo,
the CC bits can be kept for processing or rendering with either tool.
This can be an effective way to backup an original CC stream, including
format extensions like EIA-708 and overall original presentation.Signed-off-by : Marth64 <marth64@proxyid.net>
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I have an MJPEG file decoded with the Intel® IPP JPEG encoder [8.1.42291], how can I convert it to MP4 using ffmpeg ? [closed]
8 mars 2024, par Renan AragãoWhen trying to convert the MJPEG file with ffmpeg, it gives the following error : Output file #0 does not contain any stream.


This is the complete output :


.\ffmpeg.exe -init_hw_device qsv=intel,child_device=1 -filter_hw_device intel -i .\19a57e41-244c-45a4-af41-5069dd3cbe4a.tmp -an -vf "format=nv12,hwupload=extra_hw_frames=20" -c:v h264_qsv record.mp4 -y -loglevel verbose
ffmpeg version n5.0.1-5-g240d82f26e-20220613 Copyright (c) 2000-2022 the FFmpeg developers
 built with gcc 11.2.0 (crosstool-NG 1.24.0.533_681aaef)
 configuration: --prefix=/ffbuild/prefix --pkg-config-flags=--static --pkg-config=pkg-config --cross-prefix=x86_64-w64-mingw32- --arch=x86_64 --target-os=mingw32 --enable-version3 --disable-debug --disable-w32threads --enable-pthreads --enable-iconv --enable-libxml2 --enable-zlib --enable-libfreetype --enable-libfribidi --enable-gmp --enable-lzma --enable-fontconfig --enable-libvorbis --enable-opencl --disable-libpulse --enable-libvmaf --disable-libxcb --disable-xlib --enable-amf --enable-libaom --enable-libaribb24 --disable-avisynth --enable-libdav1d --disable-libdavs2 --disable-libfdk-aac --enable-ffnvcodec --enable-cuda-llvm --disable-frei0r --enable-libgme --enable-libass --enable-libbluray --enable-libmp3lame --enable-libopus --enable-librist --enable-libtheora --enable-libvpx --enable-libwebp --enable-lv2 --enable-libmfx --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-libopenmpt --enable-librav1e --disable-librubberband --enable-schannel --enable-sdl2 --enable-libsoxr --enable-libsrt --enable-libsvtav1 --enable-libtwolame --enable-libuavs3d --disable-libdrm --disable-vaapi --disable-libvidstab --enable-vulkan --enable-libshaderc --enable-libplacebo --disable-libx264 --disable-libx265 --disable-libxavs2 --disable-libxvid --enable-libzimg --enable-libzvbi --extra-cflags=-DLIBTWOLAME_STATIC --extra-cxxflags= --extra-ldflags=-pthread --extra-ldexeflags= --extra-libs=-lgomp --extra-version=20220613
 libavutil 57. 17.100 / 57. 17.100
 libavcodec 59. 18.100 / 59. 18.100
 libavformat 59. 16.100 / 59. 16.100
 libavdevice 59. 4.100 / 59. 4.100
 libavfilter 8. 24.100 / 8. 24.100
 libswscale 6. 4.100 / 6. 4.100
 libswresample 4. 3.100 / 4. 3.100
WARNING: defaulting child_device_type to AV_HWDEVICE_TYPE_DXVA2 for compatibility with old commandlines. This behaviour will be removed in the future. Please explicitly set device type via "-init_hw_device" option.
[AVHWDeviceContext @ 000001953dac2f40] Using D3D9Ex device.
[AVHWDeviceContext @ 000001953dac2a80] Initialize MFX session: API version is 1.35, implementation version is 1.35
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '.\19a57e41-244c-45a4-af41-5069dd3cbe4a.tmp':
 Metadata:
 major_brand : mp42
 minor_version : 0
 compatible_brands: mp42isom
 creation_time : 2024-03-06T13:32:38.000000Z
 Duration: 00:00:00.00, bitrate: N/A
Output #0, mp4, to 'record.mp4':
Output file #0 does not contain any stream



I try using ipp in python and dotnet, but idon't found sample code. I need convert MJPEG Intel IPP to mp4.