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    Puis-je poster des contenus à partir d’une tablette Ipad ?
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    MediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
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Sur d’autres sites (10197)

  • FFMPEG - Use Orientation metadata for mobile recordings

    21 mai 2012, par Kim Egede Jakobsen

    When I convert a .mov file recorded on a iPhone 4S, the video is rotated 180 degrees.
    If I playing the video on my computer, it looks correct.

    I got the same issue with .3gp files from Android and .mov from iPhone 4 (They are rotated 90 degrees)

    I have tried looking in the documentation for FFMPEG, but it seems that I will need to scan the metadata and then add it to my convertion script ?

    Command tried : ffmpeg -i VID_20120510_104204.mov -y -f flv -ar 44100 VID_20120510_104204.flv
    Also looked on -vf %ROTATE%

  • How to write frames to a video file ?

    20 juillet 2019, par Mike Chen

    I am currently writing an application that read frames from camera, modify them, and save them into a video file. I’m planing to do it with ffmpeg. There’s rarely a documentation about ffmpeg. I can’t find a way. Does any know how to do it ?

    I need it to be done on unix, and in C or C++. Does any can provide some instructions ?

    Thanks.

    EDIT :

    Sorry, I haven’t write clearly. I want some developer APIs to write frames to a video file. I open up camera stream, I get every single frame, then I save them into a video file with those APIs available in ffmpeg’s public apis. So using command line tool actually doesn’t help me. And I’ve seen output_example.c under the ffmpeg src folder. It’s pretty great that I may copy some parts of the code directly without change. And I am still looking for a easier way.

    Also, I’m thinking of porting my app to iPhone, as far as I know, only ffmpeg has been ported on iPhone. GStreamer is based on glib, and it’s all GNU stuff. I’m not sure if I can get it work on iPhone. So ffmpeg is still the best choice for now.

    Any comments is appreciated.

  • How to write frames to a video file ?

    23 décembre 2013, par Mike Chen

    I am currently writing an application that read frames from camera, modify them, and save them into a video file. I'm planing to do it with ffmpeg. There's rarely a documentation about ffmpeg. I can't find a way. Does any know how to do it ?

    I need it to be done on unix, and in C or C++. Does any can provide some instructions ?

    Thanks.

    EDIT :

    Sorry, I haven't write clearly. I want some developer APIs to write frames to a video file. I open up camera stream, I get every single frame, then I save them into a video file with those APIs available in ffmpeg's public apis. So using command line tool actually doesn't help me. And I've seen output_example.c under the ffmpeg src folder. It's pretty great that I may copy some parts of the code directly without change. And I am still looking for a easier way.

    Also, I'm thinking of porting my app to iPhone, as far as I know, only ffmpeg has been ported on iPhone. GStreamer is based on glib, and it's all GNU stuff. I'm not sure if I can get it work on iPhone. So ffmpeg is still the best choice for now.

    Any comments is appreciated.

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