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The Slip - Artworks
26 septembre 2011, par
Mis à jour : Septembre 2011
Langue : English
Type : Texte
Autres articles (39)
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Publier sur MédiaSpip
13 juin 2013Puis-je poster des contenus à partir d’une tablette Ipad ?
Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir -
Amélioration de la version de base
13 septembre 2013Jolie sélection multiple
Le plugin Chosen permet d’améliorer l’ergonomie des champs de sélection multiple. Voir les deux images suivantes pour comparer.
Il suffit pour cela d’activer le plugin Chosen (Configuration générale du site > Gestion des plugins), puis de configurer le plugin (Les squelettes > Chosen) en activant l’utilisation de Chosen dans le site public et en spécifiant les éléments de formulaires à améliorer, par exemple select[multiple] pour les listes à sélection multiple (...) -
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 (...)
Sur d’autres sites (8237)
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Why does FFMPEG report the wrong duration ?
27 avril 2013, par Adrian LynchI have an oldish build of FFMPEG that I can't easily change.
We use FFMPEG to find the duration of video and sound files. So far it has been working wonderfully.
Recently on an uploaded file, FFMPEG has reported a 30 second file as being 5 minutes 30 seconds in length.
Could it be something wrong with the file rather than FFMPEG ?
If I use FFMPEG to convert to another file, the duration is restored.
In case it matters, ffmpeg -i 'path to the file' produces :
FFmpeg version Sherpya-r15618, Copyright (c) 2000-2008 Fabrice Bellard, et al. libavutil 49.11. 0 / 49.11. 0 libavcodec 52. 0. 0 / 52. 0. 0 libavformat 52.22. 1 / 52.22. 1 libavdevice 52. 1. 0 / 52. 1. 0 libswscale 0. 6. 1 / 0. 6. 1 libpostproc 51. 2. 0 / 51. 2. 0 built on Oct 14 2008 23:43:47, gcc : 4.2.5 20080919 (prerelease) [Sherpya] Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'H :\path\to\file.mov' : Duration : 00:05:35.00, start : 0.000000, bitrate : 1223 kb/s Stream #0.0(eng) : Audio : aac, 44100 Hz, stereo, s16 Stream #0.1(eng) : Video : h264, yuv420p, 720x576, 25.00 tb(r) Must supply at least one output fileIt's that very command I use to then extract the duration with RegEx.
Does anyone have a nice application that can do what I'm trying above but get it right 100% of the time ?
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ffmpeg error while converting to mp4 Error while opening encoder for output stream #0.0
20 mars 2016, par JoshI am trying to convert various file types to mp4 to be displayed using ffmpeg, but i keep getting the error :
Error while opening encoder for output stream #0.0 - maybe incorrect parameters such as bit_rate, rate, width or height
Another piece that looks important is :
[libx264 @ 0x93caef0] broken ffmpeg default settings detected
[libx264 @ 0x93caef0] use an encoding preset (e.g. -vpre medium)
[libx264 @ 0x93caef0] preset usage : -vpre -vpre
[libx264 @ 0x93caef0] speed presets are listed in x264 —help
[libx264 @ 0x93caef0] profile is optional ; x264 defaults to high
The latest code I am running is :
ffmpeg -i source -s 320x240 -r 30000/1001 -b 200k -bt 240k -vcodec libx264 -coder 0 -bf 0 -refs 1 -flags2 -wpred-dct8x8 -level 30 -maxrate 10M -bufsize 10M -acodec libfaac -ac 2 -ar 48000 -ab 192k destination
I have seen a few other people with this issue, but their fixes didn’t work for some reason.
In case it matters : ultimately this will be used in php, though I am trying to get it working first via putty
EDIT: : Here is the full thing as requested(using a wmv, have tested wmv and flv) :
~ >> ffmpeg -i path.wmv -s 320x240 -r 30000/1001 -b 200k -r 29.97 -bt 240k -vcodec libx264 -coder 0 -bf 0 -refs 1 -flags2 -wpred-dct8x8 -level 30 -maxrate 10M -bufsize 10M -acodec libfaac -ac 2 -ar 48000 -ab 192k path.mp4
FFmpeg version SVN-r26076, Copyright (c) 2000-2011 the FFmpeg developers
built on Aug 28 2012 17:55:47 with gcc 4.1.2 20080704 (Red Hat 4.1.2-52)
configuration: --enable-version3 --enable-gpl --enable-nonfree --enable-shared --enable-postproc --enable-avfilter --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libvpx --enable-libfaac --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libx264 --enable-libxvid --disable-ffplay --disable-indevs --disable-outdevs --disable-demuxer=v4l --disable-demuxer=v4l2 --disable-mmx
libavutil 50.36. 0 / 50.36. 0
libavcore 0.16. 1 / 0.16. 1
libavcodec 52.108. 0 / 52.108. 0
libavformat 52.93. 0 / 52.93. 0
libavdevice 52. 2. 3 / 52. 2. 3
libavfilter 1.74. 0 / 1.74. 0
libswscale 0.12. 0 / 0.12. 0
libpostproc 51. 2. 0 / 51. 2. 0
Seems stream 1 codec frame rate differs from container frame rate: 1000.00 (1000/1) -> 29.97 (30000/1001)
Input #0, asf, from 'path.wmv':
Metadata:
SfOriginalFPS : 299
WMFSDKVersion : 11.0.6001.7000
WMFSDKNeeded : 0.0.0.0000
IsVBR : 0
title : Wildlife in HD
artist :
copyright : © 2008 Microsoft Corporation
comment : Footage: Small World Productions, Inc; Tourism New Zealand | Producer: Gary F. Spradling | Music: Steve Ball
Duration: 00:00:30.09, start: 8.000000, bitrate: 6977 kb/s
Stream #0.0(eng): Audio: wmav2, 44100 Hz, 2 channels, s16, 192 kb/s
Stream #0.1(eng): Video: vc1, yuv420p, 1280x720, 5942 kb/s, 29.97 tbr, 1k tbn, 1k tbc
File 'path.mp4' already exists. Overwrite ? [y/N] y
[buffer @ 0x9ce9eb0] w:1280 h:720 pixfmt:yuv420p
[scale @ 0x9ce8f70] w:1280 h:720 fmt:yuv420p -> w:320 h:240 fmt:yuv420p flags:0x4
[libx264 @ 0x9ce9ef0] broken ffmpeg default settings detected
[libx264 @ 0x9ce9ef0] use an encoding preset (e.g. -vpre medium)
[libx264 @ 0x9ce9ef0] preset usage: -vpre <speed> -vpre <profile>
[libx264 @ 0x9ce9ef0] speed presets are listed in x264 --help
[libx264 @ 0x9ce9ef0] profile is optional; x264 defaults to high
Output #0, mp4, to 'path.mp4':
Stream #0.0(eng): Video: libx264, yuv420p, 320x240, q=2-31, 200 kb/s, 90k tbn, 29.97 tbc
Stream #0.1(eng): Audio: libfaac, 48000 Hz, 2 channels, s16, 192 kb/s
Stream mapping:
Stream #0.1 -> #0.0
Stream #0.0 -> #0.1
Error while opening encoder for output stream #0.0 - maybe incorrect parameters such as bit_rate, rate, width or height
</profile></speed>Thanks for any help
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Building FFmpeg with NVIDIA GPU Hardware Acceleration in docker image, cannot load libnvcuvid.so.1 and libnvidia-encode.so.1
22 mars 2023, par konovificationI'm trying to build FFmpeg with NVIDIA GPU Hardware Acceleration following these instructions : https://docs.nvidia.com/video-technologies/video-codec-sdk/ffmpeg-with-nvidia-gpu/index.html#compiling-for-linux. The Docker image I'm using is
nvidia/cuda:12.0.1-devel-ubuntu20.04

Running the test command
ffmpeg -y -vsync 0 -hwaccel cuda -hwaccel_output_format cuda -i bbb.mp4 -c:a copy -c:v h264_nvenc -b:v 5M output.mp4, I get the following output :

ffmpeg version N-109965-ge50a02b0f6 Copyright (c) 2000-2023 the FFmpeg developers 
 built with gcc 9 (Ubuntu 9.4.0-1ubuntu1~20.04.1) 
 configuration: --enable-nonfree --enable-cuda-nvcc --enable-libnpp --extra-cflags=-I/usr/local/cuda/include --extra-ldflags=-L/usr/local/cuda/lib64 --disable-static --enable-shared 
 libavutil 58. 3.100 / 58. 3.100 
 libavcodec 60. 6.100 / 60. 6.100 
 libavformat 60. 4.100 / 60. 4.100 
 libavdevice 60. 2.100 / 60. 2.100 
 libavfilter 9. 4.100 / 9. 4.100 
 libswscale 7. 2.100 / 7. 2.100 
 libswresample 4. 11.100 / 4. 11.100 
-vsync is deprecated. Use -fps_mode 
Passing a number to -vsync is deprecated, use a string argument as described in the manual. 
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'bbb.mp4': 
 Metadata: 
 major_brand : isom 
 minor_version : 1 
 compatible_brands: isomavc1 
 creation_time : 2013-12-16T17:44:39.000000Z 
 title : Big Buck Bunny, Sunflower version 
 artist : Blender Foundation 2008, Janus Bager Kristensen 2013 
 comment : Creative Commons Attribution 3.0 - http://bbb3d.renderfarming.net 
 genre : Animation 
 composer : Sacha Goedegebure 
 Duration: 00:10:34.60, start: 0.000000, bitrate: 3481 kb/s 
 Stream #0:0[0x1](und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(progressive), 1920x1080 [SAR 1:1 DAR 16:9], 2998 kb/s, 30 fps, 30 tbr, 30k tbn (default)
 Metadata: 
 creation_time : 2013-12-16T17:44:39.000000Z 
 handler_name : GPAC ISO Video Handler 
 vendor_id : [0][0][0][0] 
 Stream #0:1[0x2](und): Audio: mp3 (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 160 kb/s (default) 
 Metadata: 
 creation_time : 2013-12-16T17:44:42.000000Z 
 handler_name : GPAC ISO Audio Handler 
 vendor_id : [0][0][0][0] 
 Stream #0:2[0x3](und): Audio: ac3 (ac-3 / 0x332D6361), 48000 Hz, 5.1(side), fltp, 320 kb/s (default) 
 Metadata: 
 creation_time : 2013-12-16T17:44:42.000000Z 
 handler_name : GPAC ISO Audio Handler 
 vendor_id : [0][0][0][0] 
 Side data: 
 audio service type: main 
Stream mapping: 
 Stream #0:0 -> #0:0 (h264 (native) -> h264 (h264_nvenc)) 
 Stream #0:2 -> #0:1 (copy) 
Press [q] to stop, [?] for help 
[h264 @ 0x55bd878c2d80] Cannot load libnvcuvid.so.1 
[h264 @ 0x55bd878c2d80] Failed loading nvcuvid. 
[h264 @ 0x55bd878c2d80] Failed setup for format cuda: hwaccel initialisation returned error. 
[h264_nvenc @ 0x55bd86f5e680] Cannot load libnvidia-encode.so.1 
[h264_nvenc @ 0x55bd86f5e680] The minimum required Nvidia driver for nvenc is 520.56.06 or newer 
[vost#0:0/h264_nvenc @ 0x55bd86f5e1c0] Error initializing output stream: Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height
Conversion failed! 


Output from
nvidia-smi:

+-----------------------------------------------------------------------------+
| NVIDIA-SMI 525.85.05 Driver Version: 525.85.05 CUDA Version: 12.0 |
|-------------------------------+----------------------+----------------------+
| GPU Name Persistence-M| Bus-Id Disp.A | Volatile Uncorr. ECC |
| Fan Temp Perf Pwr:Usage/Cap| Memory-Usage | GPU-Util Compute M. |
| | | MIG M. |
|===============================+======================+======================|
| 0 NVIDIA GeForce ... Off | 00000000:01:00.0 On | N/A |
| 27% 43C P8 12W / 250W | 500MiB / 11264MiB | 1% Default |
| | | N/A |
+-------------------------------+----------------------+----------------------+
 
+-----------------------------------------------------------------------------+
| Processes: |
| GPU GI CI PID Type Process name GPU Memory |
| ID ID Usage |
|=============================================================================|
+-----------------------------------------------------------------------------+


The shared libraries are not part of the docker image. What are my options to add them ?


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