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Autres articles (49)
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Publier sur MédiaSpip
13 juin 2013Puis-je poster des contenus à partir d’une tablette Ipad ?
Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir -
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 (...) -
Support audio et vidéo HTML5
10 avril 2011MediaSPIP utilise les balises HTML5 video et audio pour la lecture de documents multimedia en profitant des dernières innovations du W3C supportées par les navigateurs modernes.
Pour les navigateurs plus anciens, le lecteur flash Flowplayer est utilisé.
Le lecteur HTML5 utilisé a été spécifiquement créé pour MediaSPIP : il est complètement modifiable graphiquement pour correspondre à un thème choisi.
Ces technologies permettent de distribuer vidéo et son à la fois sur des ordinateurs conventionnels (...)
Sur d’autres sites (10197)
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Select screen area dragging the mouse [closed]
12 juin 2022, par Pedro AntônioHow can I select area, by dragging the mouse and drawing a rectangle, returning x and y position ? I would like to get this parameters to pass it to ffmpeg


Thanks


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ffplay keep video/audio sync when using select filter
24 août 2016, par arrietaegurenI’m trying to play/skip some clips of a video using ffplay. My first approach to skip say frames 100 to 400 was :
ffplay -vf "select='lte(n\,100)+gte(n\,400)'" -i INPUT
this skips the desired frames, however it also freezes the video during the skipped frames. I tried to fix this by modifying the video presentation time stamp (PTS) with the setpts option :
ffplay -vf "select='lte(n\,100)+gte(n\,400)',setpts='PREV_OUTPTS'" -i INPUT
this seems to work (stills freeze a bit, guess is because of buffering), but now the audio is out of sync. I’ve tried applying a select filter and modifying the PTS on the audio as well
ffplay -vf "select='lte(n\,100)+gte(n\,400)',setpts='PREV_OUTPTS'" -af "aselect='lte(n\,100)+gte(n\,400)',asetpts='PREV_OUTPTS'" -i INPUT
this skips some audio frames, but still out of sync. I’ve tried with the aresample=async=10000 option with similar results. Moving some/all of the filters to the output (placing them after the -i INPUT) doesn’t work either.
Does someone know how to skip parts of a video using ffplay ? Many thanks
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How to use ffmpeg read realtime microphone audio volume ?
7 juin 2020, par CyrusI have Google this proplem, Here is a simliar problem



But when i exectue following command



val command = arrayOf("/usr/local/bin/ffmpeg",
 "-f", "avfoundation",
 "-i", ":2",
 "-t", "5",
 "-ar", "11025",
 "-ac", "1",
 "-acodec","aac", "-")




I got this error
Unknown input format: 'avfoundation'

Who has ideas for this problem ?


PS : My platform is android, i am using
android-ffmpeg lib
.