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• Http live streaming for ipad, iphone and safari

  23 février 2013, par Riyas Anchal

  Anyone help me to find a solution to stream a video from a mac server to iPad, iPhone and mac safari using HTTP live streaming.

  Steps taken :

  1. Installed and configured FFMPEG for encoding
  2. installed the mediasegmenter provided by the Apple.

  The ffmpeg option used is

  ffmpeg -y -i input.mp4 -acodec aac -ar 48000 -ab 128k -ac 2 -s 1024×768 -vcodec libx264 -b 1200k -flags +loop+mv4 -cmp 256 -partitions +parti4x4+partp8x8+partb8x8 -subq 7 -trellis 1 -refs 5 -coder 0 -me_range 16 -keyint_min 25 -sc_threshold 40 -i_qfactor 0.71 -bt 1200k -maxrate 1200k -bufsize 1200k -rc_eq 'blurCplx^(1-qComp)' -qcomp 0.6 -qmin 10 -qmax 51 -qdiff 4 -level 30 -aspect 4:3 -r 30 -g 90 -async 2 output.mp4

  I have tried different ffmpeg options to stream the video.In some options it works in Iphone and Safari browser in mac machine, but I didn't get an option for iPad.

  I want to stream an mp4 video for ipad, iPhone and mac safari. I also tried it with opensource segmenter .

  Have any solution for this ?

  Thanks,

  Riyas

• h264 Licensing, ffmpeg iPhone transcoding

  28 février 2013, par NadavRub

  Requirements
  
  1. An application that should run, to begin with, on iPhone, and, in the end on a plurality
   of SmartPhone devices.
  2. Aim at having the trans-coding code supporting as much OSs as possible.
  3. Application is commercial.

  Use-case
  
  I. Record video using the portable SmartPhone Camera application
  II. Trans-code the video into a plurality of bit-rates using a cutom app
  

  iPhone Implementation
  
  A. To satisfy requirement [2], Implement Trans-coding using C++
  B. Use ffmpeg for trans-coding.
  

  Problem
  - Using ffmpeg to encode H264 req usage of the x264 lib
  - H264 encoding mandate payment for Licensing.

  In order to avoid H264 Licensing
  - The iPhone device ( and many others ) come with built-in H264 encoding capability
  - Usage of the built-in H264 Codec will avoid licensing problems/restrictions
  

  ---

  Does ffmpeg, supports, in any way, usage of iPhone's built-in H264 encoder ?
  
  
  
  Any help will be appreciated.

• Live streaming from iphone To wowza server

  4 décembre 2013, par user2959377

  I need to develop an iphone app that streams live video to wowza server. For encoding the captured video in H.264 and to compress it i need to use FFmpeg. I am unable to proceed because of limited content on internet explaining compilation of FFmpeg.
  I used https://github.com/lajos/iFrameExtractor to start with compiling of FFmpeg, but i dont understand how to use the generated files in my application. I am using AVFoundation and can successfully generate the video but dont know how to compile the captured video through FFmpeg. Any link that could help in starting with compiling and using ffmpeg in iphone would be of great help.