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Autres articles (103)
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Le profil des utilisateurs
12 avril 2011, parChaque utilisateur dispose d’une page de profil lui permettant de modifier ses informations personnelle. Dans le menu de haut de page par défaut, un élément de menu est automatiquement créé à l’initialisation de MediaSPIP, visible uniquement si le visiteur est identifié sur le site.
L’utilisateur a accès à la modification de profil depuis sa page auteur, un lien dans la navigation "Modifier votre profil" est (...) -
Configurer la prise en compte des langues
15 novembre 2010, parAccéder à la configuration et ajouter des langues prises en compte
Afin de configurer la prise en compte de nouvelles langues, il est nécessaire de se rendre dans la partie "Administrer" du site.
De là, dans le menu de navigation, vous pouvez accéder à une partie "Gestion des langues" permettant d’activer la prise en compte de nouvelles langues.
Chaque nouvelle langue ajoutée reste désactivable tant qu’aucun objet n’est créé dans cette langue. Dans ce cas, elle devient grisée dans la configuration et (...) -
XMP PHP
13 mai 2011, parDixit Wikipedia, XMP signifie :
Extensible Metadata Platform ou XMP est un format de métadonnées basé sur XML utilisé dans les applications PDF, de photographie et de graphisme. Il a été lancé par Adobe Systems en avril 2001 en étant intégré à la version 5.0 d’Adobe Acrobat.
Étant basé sur XML, il gère un ensemble de tags dynamiques pour l’utilisation dans le cadre du Web sémantique.
XMP permet d’enregistrer sous forme d’un document XML des informations relatives à un fichier : titre, auteur, historique (...)
Sur d’autres sites (16449)
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Error inclunding in FFMPEG project on a Mac using clang
3 juillet 2018, par benwizI’m having trouble running the remuxing.c example code. I get the following error. I have confirmed that the files can be found in
/usr/local/include
. I am running macOS Sierra 10.12.6.$ cc -v playground/remuxing.c
Apple LLVM version 9.0.0 (clang-900.0.39.2)
Target: x86_64-apple-darwin16.7.0
Thread model: posix
InstalledDir: /Library/Developer/CommandLineTools/usr/bin
"/Library/Developer/CommandLineTools/usr/bin/clang" -cc1 -triple x86_64-apple-macosx10.12.0 -Wdeprecat
ed-objc-isa-usage -Werror=deprecated-objc-isa-usage -emit-obj -mrelax-all -disable-free -disable-llvm-v
erifier -discard-value-names -main-file-name remuxing.c -mrelocation-model pic -pic-level 2 -mthread-mo
del posix -mdisable-fp-elim -fno-strict-return -masm-verbose -munwind-tables -target-cpu penryn -target
-linker-version 305 -v -dwarf-column-info -debugger-tuning=lldb -resource-dir /Library/Developer/Comman
dLineTools/usr/lib/clang/9.0.0 -fdebug-compilation-dir /Users/myuser/github/personal/synthesthesi
a -ferror-limit 19 -fmessage-length 103 -stack-protector 1 -fblocks -fobjc-runtime=macosx-10.12.0 -fenc
ode-extended-block-signature -fmax-type-align=16 -fdiagnostics-show-option -fcolor-diagnostics -o /var/
folders/8s/2xc3v8dd7zz2c2trymzybvd534bnhg/T/remuxing-819223.o -x c playground/remuxing.c
clang -cc1 version 9.0.0 (clang-900.0.39.2) default target x86_64-apple-darwin16.7.0
#include "..." search starts here:
#include <...> search starts here:
/usr/local/include
/Library/Developer/CommandLineTools/usr/lib/clang/9.0.0/include
/Library/Developer/CommandLineTools/usr/include
/usr/include
/System/Library/Frameworks (framework directory)
/Library/Frameworks (framework directory)
End of search list.
"/Library/Developer/CommandLineTools/usr/bin/ld" -demangle -lto_library /Library/Developer/CommandLineTools/usr/lib/libLTO.dylib -no_deduplicate -dynamic -arch x86_64 -macosx_version_min 10.12.0 -o a.out /var/folders/8s/2xc3v8dd7zz2c2trymzybvd534bnhg/T/remuxing-819223.o -lSystem /Library/Developer/CommandLineTools/usr/lib/clang/9.0.0/lib/darwin/libclang_rt.osx.a
Undefined symbols for architecture x86_64:
"_av_dump_format", referenced from:
_main in remuxing-819223.o
"_av_freep", referenced from:
_main in remuxing-819223.o
"_av_interleaved_write_frame", referenced from:
_main in remuxing-819223.o
"_av_mallocz_array", referenced from:
_main in remuxing-819223.o
"_av_packet_unref", referenced from:
_main in remuxing-819223.o
"_av_read_frame", referenced from:
_main in remuxing-819223.o
"_av_rescale_q", referenced from:
_main in remuxing-819223.o
"_av_rescale_q_rnd", referenced from:
_main in remuxing-819223.o
"_av_strerror", referenced from:
_av_make_error_string in remuxing-819223.o
"_av_write_trailer", referenced from:
_main in remuxing-819223.o
"_avcodec_parameters_copy", referenced from:
_main in remuxing-819223.o
"_avformat_alloc_output_context2", referenced from:
_main in remuxing-819223.o
"_avformat_close_input", referenced from:
_main in remuxing-819223.o
"_avformat_find_stream_info", referenced from:
_main in remuxing-819223.o
"_avformat_free_context", referenced from:
_main in remuxing-819223.o
"_avformat_new_stream", referenced from:
_main in remuxing-819223.o
"_avformat_open_input", referenced from:
_main in remuxing-819223.o
"_avformat_write_header", referenced from:
_main in remuxing-819223.o
"_avio_closep", referenced from:
_main in remuxing-819223.o
"_avio_open", referenced from:
_main in remuxing-819223.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation) -
Cannot find a proper format for codec ‘h264’ (id 28), pixel format ‘none’
20 avril 2022, par 이중범I downloaded jocover’s git hub ffmpeg and compiled it to stream the video to the web on the Jetsonano board
However, i tried


ffmpeg -c:vh264_nvmpi -i /dev/video -f null -





Cannot find a proper format for codec ‘h264’ (id 28), pixel format
‘none’ (id-1)


Assertion *codec_id != AV_CODEC_ID_NONE failed at
src/libavdevice/v4l2.c:811




I got this error


and I tried
./ffmpeg -encoders |grep 264


As a result of this console, the output is as follows :




v… h264_nvmpi nvmpi H.264 encoder wrapper (codec h264)






v… h264_v4l2m2m V4L2 mem2mem H.264 encoder wrapper (codec h264)






v… h264_vaapi H.264/AVC (VAAPI) (codec h264)




The camera specs are like this maybe Sony IMX219, a model called Raspberry Pi Camera Module V2




ioctl : VIDIOC_ENUM_FMT


Index : 0


Type : Video Capture


Pixel Format : ‘RG10’


Name : 10-bit Bayer RGRG/GBGB




I’d really appreciate your help


thx


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FFMpegm. Unable to get video stream from a onvif camera
15 avril 2018, par Denis GottardelloI have implemented ffmpeg in my own application to watch live video from video cameras.
I have tested my application with 2 models of onvif camera and the application works perfectly.
The customer has got another model of video cameram still onvif h264 but I can’t watch the live stream.
I can wath it using vlc but when I try to watch it with my application I obtain the following error :Input #0, rtsp, from 'rtsp://admin:admin@172.30.153.33:554/1':
Metadata:
title : h264.mp4
Duration: N/A, bitrate: 64 kb/s
Stream #0:0: Video: h264, none, 90k tbr, 90k tbn, 180k tbc
Stream #0:1: Audio: pcm_mulaw, 8000 Hz, 1 channels, s16, 64 kb/s
[rtsp @ 0x7f86b8004e00] UDP timeout, retrying with TCP
[rtsp @ 0x7f86b8004e00] method PAUSE failed: 455 Method Not Valid In This State
[rtsp @ 0x7f86b8005000] Could not find codec parameters for stream 0 (Video: h264, none): unspecified size
Consider increasing the value for the 'analyzeduration' and 'probesize' optionsI have already tried to modify analyzeduration and probesize without any good result.
How to resolve this error ?
Could it be caused by a not up-to-date h264 library ?