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Les autorisations surchargées par les plugins
27 avril 2010, parMediaspip core
autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs -
De l’upload à la vidéo finale [version standalone]
31 janvier 2010, parLe chemin d’un document audio ou vidéo dans SPIPMotion est divisé en trois étapes distinctes.
Upload et récupération d’informations de la vidéo source
Dans un premier temps, il est nécessaire de créer un article SPIP et de lui joindre le document vidéo "source".
Au moment où ce document est joint à l’article, deux actions supplémentaires au comportement normal sont exécutées : La récupération des informations techniques des flux audio et video du fichier ; La génération d’une vignette : extraction d’une (...) -
Librairies et binaires spécifiques au traitement vidéo et sonore
31 janvier 2010, parLes logiciels et librairies suivantes sont utilisées par SPIPmotion d’une manière ou d’une autre.
Binaires obligatoires FFMpeg : encodeur principal, permet de transcoder presque tous les types de fichiers vidéo et sonores dans les formats lisibles sur Internet. CF ce tutoriel pour son installation ; Oggz-tools : outils d’inspection de fichiers ogg ; Mediainfo : récupération d’informations depuis la plupart des formats vidéos et sonores ;
Binaires complémentaires et facultatifs flvtool2 : (...)
Sur d’autres sites (9861)
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Linux : FFMPEG time lapse video from image comamnds work only collects a few images out of 1000s in directory PREMATURE TERMINATION
14 janvier 2021, par youtube-dl fanGood day
I read several ways on this site to make a time lapse video from a bunch of jpg images. FFMPEG runs globbing all the jpgs. The result turns out perfect but it only does about 20 seconds worth and stops. There are no errors below it seems.


I have read about a dozen ways to combine images to video on this site but all resulted in the same result as above.


https://superuser.com/questions/1499968/creating-timelapse-from-still-images-jpg-to-mp4-using-ffmpeg
https://lists.ffmpeg.org/pipermail/ffmpeg-user/2012-September/009419.html


also tried

ffmpeg -f image2 -pattern_type glob -i '*.jpg -r 30 -q:v 2 output.mp4same result

ffmpeg -pattern_type glob -i '*.jpg' -c:v libx264 output.mp4 
ffmpeg version 2.6.8 Copyright (c) 2000-2016 the FFmpeg developers
 built with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-16)
 configuration: --prefix=/usr --bindir=/usr/bin --datadir=/usr/share/ffmpeg --i ncdir=/usr/include/ffmpeg --libdir=/usr/lib64 --mandir=/usr/share/man --arch=x86 _64 --optflags='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack- protector --param=ssp-buffer-size=4 -m64 -mtune=generic' --enable-bzlib --disabl e-crystalhd --enable-gnutls --enable-ladspa --enable-libass --enable-libdc1394 - -enable-libfaac --enable-nonfree --disable-indev=jack --enable-libfreetype --ena ble-libgsm --enable-libmp3lame --enable-openal --enable-libopenjpeg --enable-lib opus --enable-libpulse --enable-libschroedinger --enable-libsoxr --enable-libspe ex --enable-libtheora --enable-libvorbis --enable-libv4l2 --enable-libx264 --ena ble-libx265 --enable-libxvid --enable-x11grab --enable-avfilter --enable-avresam ple --enable-postproc --enable-pthreads --disable-static --enable-shared --enabl e-gpl --disable-debug --disable-stripping --shlibdir=/usr/lib64 --enable-runtime -cpudetect
 libavutil 54. 20.100 / 54. 20.100
 libavcodec 56. 26.100 / 56. 26.100
 libavformat 56. 25.101 / 56. 25.101
 libavdevice 56. 4.100 / 56. 4.100
 libavfilter 5. 11.102 / 5. 11.102
 libavresample 2. 1. 0 / 2. 1. 0
 libswscale 3. 1.101 / 3. 1.101
 libswresample 1. 1.100 / 1. 1.100
 libpostproc 53. 3.100 / 53. 3.100
[mjpeg @ 0xd185c0] Changeing bps to 8
Input #0, image2, from '*.jpg':
 Duration: 00:09:33.92, start: 0.000000, bitrate: N/A
 Stream #0:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown), 1280x960 [ SAR 1:1 DAR 4:3], 25 fps, 25 tbr, 25 tbn, 25 tbc
File 'output.mp4' already exists. Overwrite ? [y/N] y
No pixel format specified, yuvj420p for H.264 encoding chosen.
Use -pix_fmt yuv420p for compatibility with outdated media players.
[libx264 @ 0xd1e140] using SAR=1/1
[libx264 @ 0xd1e140] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
[libx264 @ 0xd1e140] profile High, level 3.2
[libx264 @ 0xd1e140] 264 - core 142 r2438 af8e768 - H.264/MPEG-4 AVC codec - Cop yleft 2003-2014 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deb lock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 m e_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chro ma_qp_offset=-2 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scene cut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin =0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to 'output.mp4':
 Metadata:
 encoder : Lavf56.25.101
 Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuvj420p(pc), 1 280x960 [SAR 1:1 DAR 4:3], q=-1--1, 25 fps, 12800 tbn, 25 tbc
 Metadata:
 encoder : Lavc56.26.100 libx264
Stream mapping:
 Stream #0:0 -> #0:0 (mjpeg (native) -> h264 (libx264))
Press [q] to stop, [?] for help
frame= 67 fps= 13 q=28.0 size= 2003kB time=00:00:00.36 bitrate=45575.5kbits frame= 70 fps= 12 q=28.0 size= 2524kB time=00:00:00.48 bitrate=43079.9kbits frame= 73 fps= 12 q=28.0 size= 3046kB time=00:00:00.60 bitrate=41594.3kbits frame= 76 fps= 11 q=28.0 size= 3589kB time=00:00:00.72 bitrate=40839.8kbits frame= 86 fps= 12 q=28.0 size= 5410kB time=00:00:01.12 bitrate=39568.1kbits frame= 92 fps= 12 q=28.0 size= 6493kB time=00:00:01.36 bitrate=39113.8kbits frame= 101 fps= 12 q=28.0 size= 7855kB time=00:00:01.72 bitrate=37412.3kbits frame= 108 fps= 12 q=28.0 size= 8950kB time=00:00:02.00 bitrate=36657.7kbits frame= 115 fps= 12 q=28.0 size= 10118kB time=00:00:02.28 bitrate=36353.6kbits frame= 120 fps= 12 q=28.0 size= 10961kB time=00:00:02.48 bitrate=36207.8kbits frame= 128 fps= 12 q=28.0 size= 12310kB time=00:00:02.80 bitrate=36015.6kbits frame= 134 fps= 12 q=28.0 size= 13323kB time=00:00:03.04 bitrate=35901.7kbits frame= 139 fps= 12 q=28.0 size= 14168kB time=00:00:03.24 bitrate=35821.6kbits frame= 142 fps= 11 q=28.0 size= 14676kB time=00:00:03.36 bitrate=35780.4kbits frame= 154 fps= 12 q=28.0 size= 16439kB time=00:00:03.84 bitrate=35069.1kbits frame= 159 fps= 11 q=28.0 size= 17328kB time=00:00:04.04 bitrate=35136.3kbits frame= 167 fps= 12 q=28.0 size= 18774kB time=00:00:04.36 bitrate=35274.5kbits frame= 173 fps= 12 q=28.0 size= 19864kB time=00:00:04.60 bitrate=35375.3kbits frame= 182 fps= 12 q=28.0 size= 21492kB time=00:00:04.96 bitrate=35496.5kbits frame= 187 fps= 12 q=28.0 size= 22389kB time=00:00:05.16 bitrate=35544.3kbits frame= 190 fps= 11 q=28.0 size= 22935kB time=00:00:05.28 bitrate=35583.5kbits frame= 196 fps= 11 q=28.0 size= 23972kB time=00:00:05.52 bitrate=35576.4kbits frame= 208 fps= 12 q=28.0 size= 26168kB time=00:00:06.00 bitrate=35728.2kbits frame= 214 fps= 12 q=28.0 size= 27303kB time=00:00:06.24 bitrate=35843.4kbits frame= 224 fps= 12 q=28.0 size= 29130kB time=00:00:06.64 bitrate=35938.7kbits frame= 224 fps=9.9 q=-1.0 Lsize= 38970kB time=00:00:08.88 bitrate=35950.7kbit s/s
video:38968kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.005002%
[libx264 @ 0xd1e140] frame I:6 Avg QP:27.08 size:209868
[libx264 @ 0xd1e140] frame P:218 Avg QP:29.42 size:177263
[libx264 @ 0xd1e140] mb I I16..4: 0.0% 98.9% 1.1%
[libx264 @ 0xd1e140] mb P I16..4: 0.0% 90.0% 0.1% P16..4: 2.0% 4.1% 3.7% 0.0% 0.0% skip: 0.0%
[libx264 @ 0xd1e140] 8x8 transform intra:99.8% inter:88.2%
[libx264 @ 0xd1e140] coded y,uvDC,uvAC intra: 100.0% 0.0% 0.0% inter: 97.4% 0.0% 0.0%
[libx264 @ 0xd1e140] i16 v,h,dc,p: 58% 29% 12% 0%
[libx264 @ 0xd1e140] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 7% 11% 44% 6% 6% 5% 8% 6% 8%
[libx264 @ 0xd1e140] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 16% 16% 13% 9% 9% 7% 10% 9% 10%
[libx264 @ 0xd1e140] i8c dc,h,v,p: 100% 0% 0% 0%
[libx264 @ 0xd1e140] Weighted P-Frames: Y:13.3% UV:0.5%
[libx264 @ 0xd1e140] ref P L0: 37.5% 9.4% 28.4% 22.9% 1.8%
[libx264 @ 0xd1e140] kb/s:35627.30


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Find video resolution and video duration of remote mediafile
22 février 2012, par osgxI want to write an program which can find some metainformation of mediafile. I'm interested in popular video formats, such as avi, mkv, mp4, mov (may be other popular too). I want basically to get :
- Video size (720, 1080, 360 etc)
- Total runtime of video (may be not very exact)
- Number of audio streams
- Name of video codec
- Name of audio codec
There is already the mediainfo, but in my program I want to get information about remote file, which may be accessed via ftp, http, samba ; or even torrent (there are some torrent solutions, which allows to read not-yet downloaded file).
MediaInfo library have no support of samba (smb ://) and mkv format (for runtime).
Also, I want to know, how much data should be downloaded to get this information. I want not to download full videofile because I have no enough disk space.
Is this information in the first 1 or 10 or 100 KiloBytes of the file ? Is it at predictable offset if I know the container name and total file size ?
PS : Platform is Linux, Language is C/C++
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fftools/ffmpeg_opt : Document VAAPI -device usage for DirectX Adapter
14 avril 2023, par Sil Vilerinofftools/ffmpeg_opt : Document VAAPI -device usage for DirectX Adapter
Initial review at https://github.com/intel-media-ci/ffmpeg/pull/619/
Signed-off-by : Sil Vilerino <sivileri@microsoft.com>
Reviewed-by : Dmitry Rogozhkin <dmitry.v.rogozhkin@intel.com>
Reviewed-by : Wu, Tong1 <tong1.wu@intel.com>
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