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Médias (21)
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1,000,000
27 septembre 2011, par
Mis à jour : Septembre 2011
Langue : English
Type : Audio
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Demon Seed
26 septembre 2011, par
Mis à jour : Septembre 2011
Langue : English
Type : Audio
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The Four of Us are Dying
26 septembre 2011, par
Mis à jour : Septembre 2011
Langue : English
Type : Audio
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Corona Radiata
26 septembre 2011, par
Mis à jour : Septembre 2011
Langue : English
Type : Audio
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Lights in the Sky
26 septembre 2011, par
Mis à jour : Septembre 2011
Langue : English
Type : Audio
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Head Down
26 septembre 2011, par
Mis à jour : Septembre 2011
Langue : English
Type : Audio
Autres articles (50)
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Mise à jour de la version 0.1 vers 0.2
24 juin 2013, parExplications des différents changements notables lors du passage de la version 0.1 de MediaSPIP à la version 0.3. Quelles sont les nouveautés
Au niveau des dépendances logicielles Utilisation des dernières versions de FFMpeg (>= v1.2.1) ; Installation des dépendances pour Smush ; Installation de MediaInfo et FFprobe pour la récupération des métadonnées ; On n’utilise plus ffmpeg2theora ; On n’installe plus flvtool2 au profit de flvtool++ ; On n’installe plus ffmpeg-php qui n’est plus maintenu au (...) -
Support de tous types de médias
10 avril 2011Contrairement à beaucoup de logiciels et autres plate-formes modernes de partage de documents, MediaSPIP a l’ambition de gérer un maximum de formats de documents différents qu’ils soient de type : images (png, gif, jpg, bmp et autres...) ; audio (MP3, Ogg, Wav et autres...) ; vidéo (Avi, MP4, Ogv, mpg, mov, wmv et autres...) ; contenu textuel, code ou autres (open office, microsoft office (tableur, présentation), web (html, css), LaTeX, Google Earth) (...)
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Supporting all media types
13 avril 2011, parUnlike most software and media-sharing platforms, MediaSPIP aims to manage as many different media types as possible. The following are just a few examples from an ever-expanding list of supported formats : images : png, gif, jpg, bmp and more audio : MP3, Ogg, Wav and more video : AVI, MP4, OGV, mpg, mov, wmv and more text, code and other data : OpenOffice, Microsoft Office (Word, PowerPoint, Excel), web (html, CSS), LaTeX, Google Earth and (...)
Sur d’autres sites (7275)
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ffmpeg unexpected exit code 1 for -list_devices and -list_options
8 janvier 2024, par djvgDescription


If I run any of the following commands from the examples in the documentation, using
ffmpeg
4.2.2 on Windows 10, the requested information is successfully displayed in the console, but the process exits with exit code1
, instead of the expected0
(success).

ffmpeg -list_devices true -f dshow -i dummy

ffmpeg -list_options true -f dshow -i video="MyCamera"



As far as I know, exit code
1
on Windows implies "Incorrect function", so I consider this behavior to be unexpected.

If I stream camera input to disk, using e.g.
ffmpeg -f dshow -i video="MyCamera" "myfile.mp4"
, then stop using q, the exit code is0
, as expected.

Question


Does the exit code
1
constitute normal behavior forffmpeg
, or am I doing something wrong ?

Relevance


When running the commands manually, from the command line, the exit code does not make much difference, as long as the requested information is displayed.


However, when running the commands programmatically, it may cause trouble. For example, using Python's
subprocess.run(..., check=True)
, the nonzero exit code causes a CalledProcessError.

Of course there are ways around this, e.g. use
check=False
, but the point is that a workaround would not be necessary ifffmpeg
behaved as expected, i.e. returned0
.

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recording live stream video from tv card using ffmpeg at window [on hold]
6 décembre 2013, par user2688423I want to record live stream every 1 second from tv card(tv signal) using ffmpeg in window.
first of all, to record live video from tv card, I tried below.
- First I tried this.
ffmpeg -list_devices true -f dshow -i dummy
then the result is
" [dshow @ 000000000024e6fe0] DirectShow video devices
[dshow @000000000024e6fe0] "SKYTV HD USB Maxx Video Capture"
[dshow @
000000000024e6fe0] DirectShow audio devices
[dshow @
000000000024e6fe0] "Analog Audio In(SKYTV HD USB Ma" "so I tried
ffmpeg -f dshow -i video="SKYTV HD USB Maxx Video Capture" -r 20
-threads 0 D ://test.mkvBut it didn't work. the Error message is
"[dshow@000000000034d920] Could not run filter
video=SKYTV HD USB
Maxx Video Capture : Input/output error"I use the device called 'SKYTV HD USB Maxx Video Capture' for getting tv signal(TV card).
- The First way deosn't work, I tried different way.
ffmpeg -y -f vfwcap -i list
then the result is
"[dshow @ 00000000003fd760] Driver 0
[dshow @ 00000000003fd760] Microsoft WDM Image Capture (Win32)
[dshow @ 00000000003fd760] Version : 6.1.7601.17514 list : Input/output error"
so I tried
ffmpeg -y -f vfwcap -r 25 -i 0 D ://out.mp4
then, there is some out.mp4 file in D drive but the file is nothing.
(I think it is not TV signal)what should i do to record live video every 1 second from tv card(tv signal) using ffmpeg in window ? And How can I set channel at tvcard(Because I want to get tv signal, there are many channels).
Please help..!
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checkasm : added additional dstW tests for hscale
26 mai 2022, par Swinney, Jonathan