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• avconv : fix -frames for video encoders with delay.

  2 janvier 2012, par Anton Khirnov

  avconv : fix -frames for video encoders with delay.

• video captured from iphone gets rotated when converted to .mp4 using ffmpeg

  10 avril 2017, par aqs

  When I try to upload videos captured from my iPhone in my app, the server performs a conversion from .mov to .mp4 so that it can be played in other platforms. However the problem is that when I shoot the video (in portrait orientation) and it is converted (using ffmpeg) and then played back from the server, it appears to be rotated. Any idea ?

• Video encoding libraries for iOS

  7 novembre 2011, par peetonn

  I really stucked with that problem, because I haven't seen enough information in the internet regarding video encoding in iOS, however we can observe plenty of apps that deal with the problem of video streaming successfully (skype, qik, justin.tv, etc.)
  I'm going to develop an application, that should send video frames obtained from camera and encoded in h.263 (h.264 or MPEG-4 it is under decision) to a web-server. For this, I need some video encoding library. Obviously, ffmpeg can deal with that task, but it is under LGPL license, which could probably lead to some problems in submitting the app in the AppStore. On the other hand, there are some applications, which are seemed to use ffmpeg library, but only Timelapser clearly states this fact in app description. Does this mean, that other apps are not using ffmpeg or just hiding this information ?

  Please, share your thoughts and experience in this topic. I'm open for dicsussion.