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Richard Stallman et le logiciel libre
19 octobre 2011, par
Mis à jour : Mai 2013
Langue : français
Type : Texte
Autres articles (30)
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MediaSPIP v0.2
21 juin 2013, parMediaSPIP 0.2 is the first MediaSPIP stable release.
Its official release date is June 21, 2013 and is announced here.
The zip file provided here only contains the sources of MediaSPIP in its standalone version.
To get a working installation, you must manually install all-software dependencies on the server.
If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...) -
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 : (...) -
HTML5 audio and video support
13 avril 2011, parMediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
For older browsers the Flowplayer flash fallback is used.
MediaSPIP allows for media playback on major mobile platforms with the above (...)
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23 décembre 2015, par Ganesh Ajjanagadde -
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23 décembre 2015, par Ganesh Ajjanagadde -
How to use ffmpeg on hardware acceleration with multiple inputs ?
20 mars 2019, par ColeI’m trying to speed up the rendering of a video by using the GPU instead of the CPU. This code works, but I don’t know if I’m doing it correctly.
ffmpeg -hwaccel cuvid -c:v hevc_cuvid \
-i video.mp4 \
-i logo.png \
-i text.mov \
-c:v h264_nvenc \
-filter_complex " \
[0]scale_npp=1920:1080,hwdownload,format=nv12[bg0]; \
[bg0]trim=0.00:59.460,setpts=PTS-STARTPTS[bg0]; \
[1]scale=150:-1[logo1];[bg0][logo1]overlay=(W-w)-10:(H-h)-10[bg0]; \
[2]scale=500:-1[logo2];[logo2]setpts=PTS-STARTPTS[logo2]; \
[bg0][logo2]overlay=-150:-100[bg0]; \
[bg0]fade=in:00:30,fade=out:1750:30[bg0]" \
-map "[bg0]" -preset fast -y output.mp4I feel like I need to be using hwuplaod somewhere in there, but I’m not totally sure. Any help would be appreciated.
Log from run :
ffmpeg version 4.0 Copyright (c) 2000-2018 the FFmpeg developers
built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.11) 20160609
configuration: --enable-gpl --enable-libx264 --enable-cuda --enable-nvenc --enable-cuvid --enable-nonfree --enable-libnpp --extra-cflags=-I/usr/local/cuda/include/ --extra-ldflags=-L/usr/local/cuda/lib64/
libavutil 56. 14.100 / 56. 14.100
libavcodec 58. 18.100 / 58. 18.100
libavformat 58. 12.100 / 58. 12.100
libavdevice 58. 3.100 / 58. 3.100
libavfilter 7. 16.100 / 7. 16.100
libswscale 5. 1.100 / 5. 1.100
libswresample 3. 1.100 / 3. 1.100
libpostproc 55. 1.100 / 55. 1.100
[hevc @ 0x3eb04c0] vps_num_hrd_parameters -1 is invalid
[hevc @ 0x3eb04c0] VPS 0 does not exist
[hevc @ 0x3eb04c0] SPS 0 does not exist.
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'video.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2mp41
encoder : Lavf58.7.100
Duration: 00:00:59.46, start: 0.000000, bitrate: 5894 kb/s
Stream #0:0(und): Video: hevc (Main) (hev1 / 0x31766568), yuv420p(tv, progressive), 3840x2160 [SAR 1:1 DAR 16:9], 5891 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 29.97 tbc (default)
Metadata:
handler_name : VideoHandler
Input #1, png_pipe, from 'logo.png':
Duration: N/A, bitrate: N/A
Stream #1:0: Video: png, rgba(pc), 528x128 [SAR 11339:11339 DAR 33:8], 25 tbr, 25 tbn, 25 tbc
Input #2, mov,mp4,m4a,3gp,3g2,mj2, from 'text.mov':
Metadata:
major_brand : qt
minor_version : 512
compatible_brands: qt
encoder : Lavf57.56.100
Duration: 00:00:06.00, start: 0.000000, bitrate: 1276 kb/s
Stream #2:0(eng): Video: qtrle (rle / 0x20656C72), bgra, 1920x1080, 1274 kb/s, SAR 1:1 DAR 16:9, 25 fps, 25 tbr, 12800 tbn, 12800 tbc (default)
Metadata:
handler_name : DataHandler
Stream mapping:
Stream #0:0 (hevc_cuvid) -> scale_npp
Stream #1:0 (png) -> scale
Stream #2:0 (qtrle) -> scale
fade -> Stream #0:0 (h264_nvenc)
Press [q] to stop, [?] for help
Output #0, mp4, to 'output.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2mp41
encoder : Lavf58.12.100
Stream #0:0: Video: h264 (h264_nvenc) (Main) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 2000 kb/s, 29.97 fps, 30k tbn, 29.97 tbc (default)
Metadata:
encoder : Lavc58.18.100 h264_nvenc
Side data:
cpb: bitrate max/min/avg: 0/0/2000000 buffer size: 4000000 vbv_delay: -1
frame= 1783 fps=151 q=30.0 Lsize= 15985kB time=00:00:59.45 bitrate=2202.4kbits/s dup=4 drop=0 speed=5.04x
video:15977kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.050389%Not sure what to make of this, pretty new to ffmpeg.
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