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Autres articles (2)
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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
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Qualité du média après traitement
21 juin 2013, parLe bon réglage du logiciel qui traite les média est important pour un équilibre entre les partis ( bande passante de l’hébergeur, qualité du média pour le rédacteur et le visiteur, accessibilité pour le visiteur ). Comment régler la qualité de son média ?
Plus la qualité du média est importante, plus la bande passante sera utilisée. Le visiteur avec une connexion internet à petit débit devra attendre plus longtemps. Inversement plus, la qualité du média est pauvre et donc le média devient dégradé voire (...)
Sur d’autres sites (3038)
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Remove black bars from DV video using ffmpeg [closed]
2 juillet 2020, par AustinMaxi1750I have copied all my Panasonic DV videos (PAL) from the 1990s to my PC as 'dv avi' using Windows movie maker in the original quality (approx 13GB per hour of video).


At the time the recordings were made I set the Panasonic camera to 16:9. However searching various forums indicates it was an illusion of 16:9 and black bars were superimposed on the 4:3 picture to give a cinematic feel. I have read also that the DV pixels are not square.


As a result all my 16:9 recordings have black bars at the top and bottom when viewed on a 16:9 monitor. The file properties are as follows :


Frame width : 720
Frame height : 576


Is there a code in ffmpeg to remove the black bars ?


I attach an example of what I have :
image with black bars


and an example of what I want to achieve :
image without black bars


I also want to convert the format without loss of quality so I can watch the videos without the black bars on a modern smart TV. My TV cannot play back DV AVI.


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Remove .mp4 video top and bottom black bars using ffmpeg
9 septembre 2014, par rexhinI’m new to ffmpeg and I have heard that it has a filter for black. I want to remove black bars on top and bottom of the video so the video will be cropped to the remaining video without black bars. Thanks :)
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How to detect black screen at play time in ijkplayer ?
31 août 2019, par seaguestI am using ijkplayer,I am wondering if it is possible to know if current player is black screen at play time ?
because some old model mobiles do not support hard-decode and get black screen, I need to know this case then switch to soft-decode.