Recherche avancée

Sur d’autres sites (7551)

• video playing sample on iPhone using libffmpeg

  6 mai 2014, par deimus

  can someone please provide a reference or an example on usage of libffmpeg library for playing video files not supported by apple.

  Let consider mkv file.
  I suppose the library decodes and passes the raw media data to AVFoundation objects to play it on device. Am I right ?

• How to extract orientation information from MOV videos created on the iPhone using ffmeg, ruby or objectivec ?

  5 octobre 2014, par Sid

  After surfing through tons of documentation on the web it seems that the iPhone always shoots the video at a 480x360 aspect ratio and applies a transformation matrix on the video track. (480x360 may change but its always the same for a given device)

  Here is a way of modifying the ffmpeg source within a iOS project and accessing the matrix http://www.seqoy.com/correct-orientation-for-iphone-recorded-movies-with-ffmpeg/

  Here is a cleaner way of finding the transformation matrix in iOS-4
  how to detect (iphone sdk) if a video file was recorded in portrait orientation, or landscape

  How can the orientation of the video be extracted in either of the options below -
  
   iOS 3.2
  
   ffmpeg (through the command line server side)
  
   ruby
  

  Any help will be appreciated.

• live streaming video file from iphone to internet using FFMpeg

  18 avril 2014, par Luis Mok

  i am trying to live streaming some video content from iphone to the internet (or server). I have read the following post (http://stackoverflow.com/questions/4084811/iphone-http-live-streaming-without-any-server-side-processing)

  And i understand i can first capture the images and audio into file then send it out to the internet. But i really have no idea how to start the work on constantly send out these video files.

  I understand i can use ffmpeg to do the streaming part. after long researching i can only found a sample program called iFrameExtractor using FFmpeg library. But the sample only shows how to use ffmpeg to playback a video file, but no sample on how to use the live streaming function in ffmpeg...

  Can anyone provide a direction or tutorial how to live streaming a video file using ffmpeg ? or anyone can suggest other ways to solve this problem ? i am sure lots of people want to know how to do that.