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Autres articles (61)
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Participer à sa traduction
10 avril 2011Vous pouvez nous aider à améliorer les locutions utilisées dans le logiciel ou à traduire celui-ci dans n’importe qu’elle nouvelle langue permettant sa diffusion à de nouvelles communautés linguistiques.
Pour ce faire, on utilise l’interface de traduction de SPIP où l’ensemble des modules de langue de MediaSPIP sont à disposition. ll vous suffit de vous inscrire sur la liste de discussion des traducteurs pour demander plus d’informations.
Actuellement MediaSPIP n’est disponible qu’en français et (...) -
Multilang : améliorer l’interface pour les blocs multilingues
18 février 2011, parMultilang est un plugin supplémentaire qui n’est pas activé par défaut lors de l’initialisation de MediaSPIP.
Après son activation, une préconfiguration est mise en place automatiquement par MediaSPIP init permettant à la nouvelle fonctionnalité d’être automatiquement opérationnelle. Il n’est donc pas obligatoire de passer par une étape de configuration pour cela. -
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
Sur d’autres sites (12941)
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How could Windows get video stream from video camera & push it to long-range Linux server ? [on hold]
2 décembre 2014, par xit6482How could Windows get video stream from a video camera ?
Using HDMI data converting line or ?
Then how could Windows push the stream to long-range Linux server ?
FFmpeg for Windows ?
I’m not sure about this, thanks for help !
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To see IP Camera using FFMPEG
14 janvier 2013, par PikeI try to use ffmpeg on android and want to see IP Camera
but somethings wrong
avformat_open_input(&gFormatCtx, "rtsp ://root:root@111.111.111.111/profile1/media.smp",NULL,NULL)
av_open_input_file(&gFormatCtx,"rtsp ://root:root@111.111.111.111/profile1/media.smp", NULL, 0, NULL)two function can't return handle
so add —enable-network —enable-protocol=tcp —enable-demuxer=rtsp —enable-decoder=h264 option
then
C:/Work/FFmpegBasic/obj/local/armeabi-v7a/libavformat.a(rtpdec.o): in function av_register_rtp_dynamic_payload_handlers:C:/Work/FFmpegBasic/jni/ffmpeg/libavformat/rtpdec.c:89: error: undefined reference to 'ff_g726_16_dynamic_handler'
C:/Work/FFmpegBasic/obj/local/armeabi-v7a/libavformat.a(rtpdec.o): in function av_register_rtp_dynamic_payload_handlers:C:/Work/FFmpegBasic/jni/ffmpeg/libavformat/rtpdec.c:89: error: undefined reference to 'ff_g726_24_dynamic_handler'
C:/Work/FFmpegBasic/obj/local/armeabi-v7a/libavformat.a(rtpdec.o): in function av_register_rtp_dynamic_payload_handlers:C:/Work/FFmpegBasic/jni/ffmpeg/libavformat/rtpdec.c:89: error: undefined reference to 'ff_g726_32_dynamic_handler'
C:/Work/FFmpegBasic/obj/local/armeabi-v7a/libavformat.a(rtpdec.o): in function av_register_rtp_dynamic_payload_handlers:C:/Work/FFmpegBasic/jni/ffmpeg/libavformat/rtpdec.c:89: error: undefined reference to 'ff_g726_40_dynamic_handler'
C:/Work/FFmpegBasic/obj/local/armeabi-v7a/libavcodec.a(allcodecs.o): in function avcodec_register_all:C:/Work/FFmpegBasic/jni/ffmpeg/libavcodec/allcodecs.c:346: error: undefined reference to 'ff_libaacplus_encoder'
C:/Work/FFmpegBasic/obj/local/armeabi-v7a/libavcodec.a(allcodecs.o): in function avcodec_register_all:C:/Work/FFmpegBasic/jni/ffmpeg/libavcodec/allcodecs.c:346: error: undefined reference to 'ff_libspeex_encoder'
collect2: ld returned 1 exit status
/cygdrive/c/android-ndk-r8d/build/core/build-binary.mk:397: recipe for target `/cygdrive/c/Work/FFmpegBasic/obj/local/armeabi-v7a/libbasicplayer.so' failed
make: *** [/cygdrive/c/Work/FFmpegBasic/obj/local/armeabi-v7a/libbasicplayer.so] Error 1but when I use nm(1) I found the symbol
does anyone help me ? -
Synchronization between camera video and inertial sensor data
14 janvier 2013, par Dima BobbyI need to :
write an Android real-time data logging application employing camera video and polling other sensor (accelerometer, gyro, compass) data at high rates e.g. 50 Hz and writing this information into file. As these data will later be used for navigation, precise synchronization between different data is extremely important.
What I have done :
implemented sensor polling in native code, so that less Java execution overhead is employed. Nonetheless, camera encoding is still in Java, for this I tried MediaRecorder and MediaCodec. In both cases data from inertial sensors and camera are not synchronized between each other, there is a varying delay of about 400ms and this is inacceptible. Moreover, I am pretty sure that encoding is HW accelerated. Now, to reach my goal I am considering about going for native implementation of video encoding using either OpenCV or FFMPEG (native code is expected to be more efficient).
EDIT : I have even tried saving the image uncompressed as pgm file, but this way the image data get really huge in size and the FPS is really low, so we are losing data. I suspect that file writing process is the bottleneck in this case. Is there an efficient way to save raw data to file achieving high FPS ?
Any hints what I should go for to achieve my goal ? I am using Android Jelly Bean with Asus Transformer TF700 Infinity.
Regards,
Dmitriy