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Autres articles (48)
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Gestion générale des documents
13 mai 2011, parMédiaSPIP ne modifie jamais le document original mis en ligne.
Pour chaque document mis en ligne il effectue deux opérations successives : la création d’une version supplémentaire qui peut être facilement consultée en ligne tout en laissant l’original téléchargeable dans le cas où le document original ne peut être lu dans un navigateur Internet ; la récupération des métadonnées du document original pour illustrer textuellement le fichier ;
Les tableaux ci-dessous expliquent ce que peut faire MédiaSPIP (...) -
Des sites réalisés avec MediaSPIP
2 mai 2011, parCette page présente quelques-uns des sites fonctionnant sous MediaSPIP.
Vous pouvez bien entendu ajouter le votre grâce au formulaire en bas de page. -
HTML5 audio and video support
13 avril 2011, parMediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
For older browsers the Flowplayer flash fallback is used.
MediaSPIP allows for media playback on major mobile platforms with the above (...)
Sur d’autres sites (4582)
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CMTimeGetSeconds doesn't get the right video duration
26 février 2015, par JLCastillosome users don’t get the right duration of videos they capture with their own device. The funny thing is others do actually see it right, using the same device models and OS version. Anyway, we observed it in a iPhone 5c 7.1.2 and an iPhone 5s 8.1.3.
This code works for most users, but not all :
ALAssetRepresentation *representation = [mediaObject.asset defaultRepresentation];
NSURL *url = [representation url];
NSDictionary *options = @{ AVURLAssetPreferPreciseDurationAndTimingKey : @YES };
AVAsset *avAsset = [AVURLAsset URLAssetWithURL:url options:options];
videoDurationTime = CMTimeGetSeconds(avAsset.duration);I asked them to send the input videos, and this is the output from "ffmpeg -i"
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'bug_duration1.MOV':
Metadata:
major_brand : qt
minor_version : 0
compatible_brands: qt
creation_time : 2015-02-23 08:30:01
encoder : 8.1.3
encoder-eng : 8.1.3
date : 2015-02-23T16:30:01+0800
date-eng : 2015-02-23T16:30:01+0800
model : iPhone 5s
model-eng : iPhone 5s
make : Apple
make-eng : Apple
Duration: 00:00:03.67, start: 0.000000, bitrate: 16793 kb/s
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080, 16719 kb/s, 29.99 fps, 29.97 tbr, 600 tbn, 1200 tbc (default)
Metadata:
creation_time : 2015-02-23 08:30:01
handler_name : Core Media Data Handler
encoder : H.264
Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 61 kb/s (default)
Metadata:
creation_time : 2015-02-23 08:30:01
handler_name : Core Media Data HandlerThe video is detected with a duration of several minutes. Did anybody face this problem before ?
Thanks in advance.
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How build ffmpeg optimized for iOS, using hardware decoding probably ?
9 décembre 2013, par jAckOdEI make a FFMPEG-based player for ios. It works fine on simulator, but on real-device (iPhone 4) the frame rate is low and make my audio and video out of sync. the player works fine on iPhone 4s, so I guess it's just problem about device's computing power.
So, is there anyway to build FFMPEG optimized for iOS device (armv7, arvm7s arch) ? or is there anyway to utilize ios device hardware to decode video stream ?
My video stream is encode in H264/AAC.
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ffmpeg convert mp4 video for phones
23 avril 2015, par Ar MegatoxI need to make a video which will play on iPhone and Android but the problem is when I click play on the phone it needs minimum 7 seconds to start.
So maybe I need to fix something in this code to make the video play on phones (maybe another format is needed) :
ffmpeg -i VIDEO -c:v libx264 -s 640x480 -strict experimental -c:a aac VIDEO.MP4
There must be something to make the video play faster without a delay on start.
I tried a
FLV
file and it worked fine on Android but the iPhone can’t play it.