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Rennes Emotion Map 2010-11
19 octobre 2011, par
Mis à jour : Juillet 2013
Langue : français
Type : Texte
Autres articles (50)
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MediaSPIP version 0.1 Beta
16 avril 2011, parMediaSPIP 0.1 beta est la première version de MediaSPIP décrétée comme "utilisable".
Le fichier zip ici présent contient uniquement les sources de MediaSPIP en version standalone.
Pour avoir une installation fonctionnelle, il est nécessaire d’installer manuellement l’ensemble des dépendances logicielles sur le serveur.
Si vous souhaitez utiliser cette archive pour une installation en mode ferme, il vous faudra également procéder à d’autres modifications (...) -
MediaSPIP 0.1 Beta version
25 avril 2011, parMediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
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 (...) -
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 (...)
Sur d’autres sites (5684)
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cannot locate symbol "avpriv_pix_fmt_bps_avi"
14 mars 2017, par S. Le GalloudecI’m developping an android application using ffmpeg. I’m trying to decode a rtsp stream, and i have a problem with a symbol.
After i finally compiled ffmpeg with this tuto :
https://github.com/WritingMinds/ffmpeg-androidI used a code i found here : Receiving RTSP stream using FFMPEG library
But i have a problem when i run my program. I got this error :
java.lang.UnsatisfiedLinkError : dlopen failed : cannot locate symbol "avpriv_pix_fmt_bps_avi" referenced by "/data/app/com.example.local.test_ffmpeg-2/lib/arm/libnative-lib.so"...
The thing is that i checked into my .a to see if i had the symbol so i did :
nm libavcodec.a | grep avpriv_pix
It returned :
00000060 R avpriv_pix_fmt_bps_avi
00000000 R avpriv_pix_fmt_bps_mov
U avpriv_pix_fmt_bps_avi
U avpriv_pix_fmt_bps_movSo it looks like i have the symbol, but the U after means undefined, so i’m really confused. I’m not sure if my compilation failed somewhere or if the problem comes from my program.
I’m using ndk 14, if someone has some ideas, that would be great :)
Best regards
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FFMPEG hevc_nvenc "No NVENC capable devices found" with NVidia GTX950M
13 mai 2017, par NaturalBornCamperI get the error "No NVENC capable devices found" when trying a simple encoding like this, even skipping audio to make sure it’s not an audio problem :
ffmpeg.exe -i input.mp4 -c:v hevc_nvenc -an out.mp4
I also tried with more details, like setting the pixel format, the preset, the rate-control, the format.
On the documentation page there :
https://trac.ffmpeg.org/wiki/HWAccelIntro
it says that if we get this error we should check for the pixel format. The video has yuv420p here and even specifying the format results in the same error.i also checked the NVidia supported cards and it says GeForce, but no details about the models :
https://developer.nvidia.com/video-encode-decode-gpu-support-matrix#EncoderI tried h264_nvenc and it works perfectly however, the problem is only with hevc_nvenc
Has anyone encountered this problem ?Complete console output :
[h264 @ 0000000002534560] Reinit context to 1280x544, pix_fmt: yuv420p
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'input.mp4':
Metadata:
major_brand : isom
minor_version : 1
compatible_brands: isom
creation_time : 2014-05-23T13:04:15.000000Z
Duration: 01:54:03.95, start: 0.000000, bitrate: 3193 kb/s
Stream #0:0(und): Video: h264 (High), 1 reference frame (avc1 / 0x31637661), yuv420p(left), 1280x544 [SAR 1:1 DAR 40:17], 2750 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 47.95 tbc (default)
Metadata:
creation_time : 2014-05-23T11:25:27.000000Z
Stream #0:1(spa): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, 5.1, fltp, 439 kb/s (default)
Metadata:
creation_time : 2014-05-23T12:56:43.000000Z
Stream mapping:
Stream #0:0 -> #0:0 (h264 (native) -> hevc (hevc_nvenc))
Press [q] to stop, [?] for help
[h264 @ 000000000260ea40] Reinit context to 1280x544, pix_fmt: yuv420p
[graph 0 input from stream 0:0 @ 0000000003857ec0] w:1280 h:544 pixfmt:yuv420p tb:1/24000 fr:24000/1001 sar:1/1 sws_param:flags=2
[hevc_nvenc @ 00000000038574e0] Loaded Nvenc version 8.0
[hevc_nvenc @ 00000000038574e0] Nvenc initialized successfully
[hevc_nvenc @ 00000000038574e0] 1 CUDA capable devices found
[hevc_nvenc @ 00000000038574e0] [ GPU #0 - < GeForce GTX 950M > has Compute SM 5.0 ]
[hevc_nvenc @ 00000000038574e0] Codec not supported
[hevc_nvenc @ 00000000038574e0] No NVENC capable devices found
[hevc_nvenc @ 00000000038574e0] Nvenc unloaded
Error initializing output stream 0:0 -- Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height
Conversion failed! -
avfilter's anull says "Rematrix is needed between stereo and 0 channels but there is not enough information to do it"
24 mai 2017, par kuanyuiI’m trying to write a transcoder according to FFMpeg’s official example with ffmpeg 3.2.4 (official prebuild Win32), and try to transcode a video with stereo audio stream source (from
avformat
’sdshow
).In the example code, which passes
anull
intoavfilter_graph_parse_ptr()
for audio stream, and"time_base=1/44100:sample_rate=44100:sample_fmt=s16:channels=2:channel_layout=0x3"
is passed intoavfilter_graph_create_filter()
, occurs error in the followingavfilter_graph_config()
:[auto-inserted scaler 0 @ 32f77600] w:iw h:ih flags:'bilinear' interl:0
[Parsed_null_0 @ 2e9d79a0] auto-inserting filter 'auto-inserted scaler 0' between the filter 'in' and the filter 'Parsed_null_0'
[swscaler @ 3331bfe0] deprecated pixel format used, make sure you did set range correctly
[auto-inserted scaler 0 @ 32f77600] w:1920 h:1080 fmt:yuvj422p sar:1/1 -> w:1920 h:1080 fmt:yuv420p sar:1/1 flags:0x2
[libmp3lame @ 2e90a360] Channel layout not specified
[in @ 3866e8a0] tb:1/44100 samplefmt:s16 samplerate:44100 chlayout:0x3
[Parsed_anull_0 @ 330e8820] auto-inserting filter 'auto-inserted resampler 0' between the filter 'in' and the filter 'Parsed_anull_0'
[auto-inserted resampler 0 @ 330e8dc0] [SWR @ 3809b620] Rematrix is needed between stereo and 0 channels but there is not enough information to do it
[auto-inserted resampler 0 @ 330e8dc0] Failed to configure output pad on auto-inserted resampler 0I’ve googled for days but didn’t find any clue for it. Doesn’t what
anull
do is only "Pass the audio source unchanged to the output", why libav want to resample stereo to 0 channel ? What’s going wrong ?