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Autres articles (59)
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Contribute to documentation
13 avril 2011Documentation is vital to the development of improved technical capabilities.
MediaSPIP welcomes documentation by users as well as developers - including : critique of existing features and functions articles contributed by developers, administrators, content producers and editors screenshots to illustrate the above translations of existing documentation into other languages
To contribute, register to the project users’ mailing (...) -
Contribute to a better visual interface
13 avril 2011MediaSPIP is based on a system of themes and templates. Templates define the placement of information on the page, and can be adapted to a wide range of uses. Themes define the overall graphic appearance of the site.
Anyone can submit a new graphic theme or template and make it available to the MediaSPIP community. -
Contribute to translation
13 avril 2011You can help us to improve the language used in the software interface to make MediaSPIP more accessible and user-friendly. You can also translate the interface into any language that allows it to spread to new linguistic communities.
To do this, we use the translation interface of SPIP where the all the language modules of MediaSPIP are available. Just subscribe to the mailing list and request further informantion on translation.
MediaSPIP is currently available in French and English (...)
Sur d’autres sites (4598)
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mmal : Reference MMAL VC lib explicitly
13 avril 2015, par wm4mmal : Reference MMAL VC lib explicitly
This is optional, but ensures that linking with -Wl,—as-needed does not
drop the library containing the MMAL VC driver. The driver normally
"registers" itself in the library constructor, but since no symbols are
explicitly referenced, the linker could remove it with —as-needed
enabled.Signed-off-by : Diego Biurrun <diego@biurrun.de>
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Raspberry pi ffmpeg server no such device /dev/video0
30 décembre 2017, par RobertOn my Raspberry pi I’ve installed ffmpeg.
At the begin I typeuv4l --driver raspicam --auto-video_nr --width 640 --height 480 --encoding jpegto run driver.
Then I check if devoce0 is registered :ls -la /dev/video*and it returns video0 so it is registered.
Then I type command to run server :ffserver -f /etc/ffserver.conf & ffmpeg -v verbose -r 5 -s 640x480 -f video4linux2 -i /dev/video0 http://localhost/webcam.ffmor this command :
ffmpeg -v verbose -r 5 -s 640x480 -f video4linux2 -i /dev/video0 http://localhost/webcam.ffmand the camera lights up for a while and then turns off and I get error like bellow :
mmap: No such device /dev/video0: No such device -
FFplay : WASAPI can't initialize audio client (FFmpeg 3.4 binaries)
9 juillet 2022, par fveI am trying to playback a stream that is multicasted over RTP using ffplay on Windows 7 64 bits.
The computer that serves the audio over RTP runs :



ffmpeg -re -f dshow -audio_buffer_size 15 -ac 1 -i audio="Mic in at front Mic-in (Realtek" -ar 8k -acodec pcm_alaw -vn -f rtp rtp://127.0.0.1:5000



The client runs :



ffplay rtp://127.0.0.1:5000



While this was working correctly in release 3.3, release 3.4 fails with this error :



SDL_OpenAudio (1 channels, 8000 Hz): WASAPI can't initialize audio client: CoInitialize has not been called.

No more combinations to try, audio open failed
Failed to open file 'rtp://127.0.0.1:5000' or configure filtergraph



Anyone has an idea of whats going on ?



Thanks



UPDATE #1 :



A workaround is to specify an alternate output driver.
Set SDL_AUDIODRIVER environment variable value to the driver you want to use.
Under windows 7, directsound and winmm both solved my issue.


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