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Médias (9)
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Stereo master soundtrack
17 octobre 2011, par
Mis à jour : Octobre 2011
Langue : English
Type : Audio
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Elephants Dream - Cover of the soundtrack
17 octobre 2011, par
Mis à jour : Octobre 2011
Langue : English
Type : Image
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#7 Ambience
16 octobre 2011, par
Mis à jour : Juin 2015
Langue : English
Type : Audio
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#6 Teaser Music
16 octobre 2011, par
Mis à jour : Février 2013
Langue : English
Type : Audio
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#5 End Title
16 octobre 2011, par
Mis à jour : Février 2013
Langue : English
Type : Audio
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#3 The Safest Place
16 octobre 2011, par
Mis à jour : Février 2013
Langue : English
Type : Audio
Autres articles (68)
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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 -
Le plugin : Podcasts.
14 juillet 2010, parLe problème du podcasting est à nouveau un problème révélateur de la normalisation des transports de données sur Internet.
Deux formats intéressants existent : Celui développé par Apple, très axé sur l’utilisation d’iTunes dont la SPEC est ici ; Le format "Media RSS Module" qui est plus "libre" notamment soutenu par Yahoo et le logiciel Miro ;
Types de fichiers supportés dans les flux
Le format d’Apple n’autorise que les formats suivants dans ses flux : .mp3 audio/mpeg .m4a audio/x-m4a .mp4 (...) -
Ajouter des informations spécifiques aux utilisateurs et autres modifications de comportement liées aux auteurs
12 avril 2011, parLa manière la plus simple d’ajouter des informations aux auteurs est d’installer le plugin Inscription3. Il permet également de modifier certains comportements liés aux utilisateurs (référez-vous à sa documentation pour plus d’informations).
Il est également possible d’ajouter des champs aux auteurs en installant les plugins champs extras 2 et Interface pour champs extras.
Sur d’autres sites (8159)
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HIK IP cameras changes chunks length while switching from day to night mode
22 septembre 2022, par Klaus-Peter EckertWe are using ffmpeg to create a video playlist consisting of 2 sec chunks send by a HIKVISION DS-2CD2143G0-I IP camera. When the camera switches from day mode to night mode the length of the chunks changes from 2 to 4 sec. When the camera switches back to day mode the chunks again have a length of 2 sec.
This is an excerpt of a playlist :


chunk-stream0-17750.m4s
#EXTINF:2.000000,
#EXT-X-PROGRAM-DATE-TIME:2022-09-19T22:26:59.418+0200
chunk-stream0-17751.m4s
#EXTINF:2.793047,
#EXT-X-PROGRAM-DATE-TIME:2022-09-19T22:27:01.418+0200
chunk-stream0-17752.m4s
#EXTINF:3.998984,
#EXT-X-PROGRAM-DATE-TIME:2022-09-19T22:27:04.211+0200
chunk-stream0-17753.m4s
#EXTINF:3.998984,
#EXT-X-PROGRAM-DATE-TIME:2022-09-19T22:27:08.210+0200
chunk-stream0-17754.m4s



This is the call of ffmpeg (with APP_RECORDING_SEG_DUR = 2) :


window_size = int(Settings.APP_RECORDING_PRE_DUR / Settings.APP_RECORDING_SEG_DUR)
# Command to start ffmpeg dash muxer
cmd = ''
cmd += f'ffmpeg -loglevel fatal -stimeout 1000000 -rtsp_transport tcp -i "{rtsp_url}" '
cmd += f'-map 0:0 -c:v:0 copy -movflags frag_keyframe+empty_moov -an -f dash -use_template 1 '
cmd += f'-use_timeline 0 -index_correction 0 -seg_duration {Settings.APP_RECORDING_SEG_DUR} '
cmd += f'-hls_playlist 1 -dash_segment_type mp4 -streaming 1 -remove_at_exit 1 '
cmd += f'-window_size {window_size} -extra_window_size {20 / Settings.APP_RECORDING_SEG_DUR} '
 cmd += f'{(self._target_path / playlist).as_posix()}'



Has anybody observed a similar behaviour and knows how to stop the camera from changing the size of the video chunks ?


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ffmpeg produces extra frames after halving the framerate
22 septembre 2022, par KorfooI have a question about halving the framerate of a video using ffmpeg.
I have an input video with a framerate of 50fps and 6410 frames, ffprobe output :


Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'input.mp4':
 Metadata:
 major_brand : M4V 
 minor_version : 1
 compatible_brands: isomavc1mp42
 creation_time : 2022-06-24T14:27:43.000000Z
 Duration: 00:02:08.20, start: 0.000000, bitrate: 12595 kb/s
 Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 12202 kb/s, 50 fps, 50 tbr, 50k tbn, 100 tbc (default)
 Metadata:
 creation_time : 2022-06-24T14:27:43.000000Z
 handler_name : ETI ISO Video Media Handler
 vendor_id : [0][0][0][0]
 encoder : Elemental H.264
 Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 384 kb/s (default)
 Metadata:
 creation_time : 2022-06-24T14:27:43.000000Z
 handler_name : ETI ISO Audio Media Handler
 vendor_id : [0][0][0][0]



I want to change this to 25fps using the following ffmpeg command :


ffmpeg -i input.mp4 -filter:v fps=25 25fps.mp4 



One would expect the amount of frames in the output to be half the frames of the input file, 3205. But this transcode results in 3206 frames.


Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '25fps.mp4':
 Metadata:
 major_brand : isom
 minor_version : 512
 compatible_brands: isomiso2avc1mp41
 encoder : Lavf58.76.100
 Duration: 00:02:08.24, start: 0.000000, bitrate: 3053 kb/s
 Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 2917 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)
 Metadata:
 handler_name : ETI ISO Video Media Handler
 vendor_id : [0][0][0][0]
 Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 129 kb/s (default)
 Metadata:
 handler_name : ETI ISO Audio Media Handler
 vendor_id : [0][0][0][0]



How does this happen and why is there a frame extra ?


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Introducing Improvements to the Opt-Out Form Feature
18 septembre 2022, par Ben — AboutMatomo includes a built-in opt-out form that you can add to your website so you can provide your visitors with the choice to opt-out of Matomo tracking. Up until Matomo 4.12.0 the built-in opt-out form relied on iFrame technology which has become increasingly problematic due to browser changes and restrictions on setting third-party cookies.
With our privacy-first approach, we’ve known for some time that we would eventually need a new way to provide this important opt-out functionality that would work most reliably in the myriad of contexts our users rely on it for.
Embedding the opt-out form
Matomo 4.12.0 introduces an improved opt-out. This provides two new options for embedding the opt-out on your website, either using the Matomo tracker code or as self-contained code.
As with the iFrame method, the built-in opt-out code can be styled in Matomo to match your website, and provides a snippet which you can add to your website to show the opt-out feature to your users.
Find out how to customise the opt-out form.
Customising the opt-out form
What does this mean for existing opt-out forms ?
Although it is no longer possible to generate new iFrame embed code using the Matomo UI, the underlying opt-out feature is still fully supported and any existing iFrame opt-out form code embedded in websites will still work as before. It is recommended to migrate to one of the new opt-out form options as browser support for the iFrame opt-out will continue to decrease.
To read more in depth information about the new opt-out functionality please refer to our new developer documentation for tracking opt-out.