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• Compiled file for ffmpeg - iphone audio

  3 April 2012, by Sreekumar Kalarikkal

  I would like to build an iPhone application which streams internet radio stations which includes .wma files also. So I found that in-order to play wma files, we need FFMPEG compiled files. I tried to build FFMPEG for iPhone, but having errors. I followed the guide here,

  I can able to build ffmpeg, but when I run the project using that library, I am getting the following error.

  Ld /Users/sreekumar/Library/Developer/Xcode/DerivedData/WunderRadio-akpvnvqfzqleafaxhbibliqszxbp/Build/Intermediates/WunderRadio.build/Release-iphoneos/WunderRadio.build/Objects-normal/armv6/WunderRadio normal armv6
  
  cd "/Volumes/DISC/Radio App/Running copy/WR1.9/WunderRadio"
  
  setenv IPHONEOS_DEPLOYMENT_TARGET 3.0
  
  setenv PATH "/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin:/Developer/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin"
  
  /Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc-4.2 -arch armv6 -isysroot /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.3.sdk -L/Users/sreekumar/Library/Developer/Xcode/DerivedData/WunderRadio-akpvnvqfzqleafaxhbibliqszxbp/Build/Products/Release-iphoneos -L/Volumes/TUNEAGE/Projects/Debug-iphoneos -L/Volumes/TUNEAGE/Projects/Debug-iphonesimulator "-L/Volumes/DISC/Radio App/Running copy/WR1.9/WunderRadio/../Common/build/Release-iphonesimulator" "-L/Users/sreekumar/Downloads/WR1.9 4/Common/build/Release-iphoneos" "-L/Volumes/DISC/Radio App/Running copy/WR1.9/WunderRadio/MMS/build/MMS.build/Release-iphoneos/libmms.build/Objects-normal/armv6" "-L/Volumes/DISC/Radio App/Running copy/WR1.9/WunderRadio/MMS/build/MMS.build/Release-iphoneos/libmms.build/Objects-normal/armv7" "-L/Volumes/DISC/Radio App/Running copy/WR1.9/WunderRadio/MMS/build/Release-iphoneos" "-L/Volumes/DISC/Radio App/Running copy/WR1.9/WunderRadio/../../../Compiled frameworks MMS and ffmpeg/WR1.9/MMS/build/Release-iphoneos" "-L/Volumes/DISC/Radio App/Running copy/WR1.9/WunderRadio/../../.." "-L/Volumes/DISC/Radio App/Running copy/WR1.9/WunderRadio" -F/Users/sreekumar/Library/Developer/Xcode/DerivedData/WunderRadio-akpvnvqfzqleafaxhbibliqszxbp/Build/Products/Release-iphoneos -filelist /Users/sreekumar/Library/Developer/Xcode/DerivedData/WunderRadio-akpvnvqfzqleafaxhbibliqszxbp/Build/Intermediates/WunderRadio.build/Release-iphoneos/WunderRadio.build/Objects-normal/armv6/WunderRadio.LinkFileList -dead_strip -ObjC -Wl --allow-multiple-definition -all_load -miphoneos-version-min=3.0 -framework MessageUI -framework Foundation -framework UIKit -framework CoreGraphics -framework SystemConfiguration -framework AudioToolbox -framework QuartzCore -framework MediaPlayer -weak_framework AVFoundation -framework CoreLocation -framework CFNetwork -lffmpegLib -llibmms -lCommon -lz -o /Users/sreekumar/Library/Developer/Xcode/DerivedData/WunderRadio-akpvnvqfzqleafaxhbibliqszxbp/Build/Intermediates/WunderRadio.build/Release-iphoneos/WunderRadio.build/Objects-normal/armv6/WunderRadio
  
  
  
  ld: warning: directory not found for option '-L/Volumes/TUNEAGE/Projects/Debug-iphoneos'
  
  ld: warning: directory not found for option '-L/Volumes/TUNEAGE/Projects/Debug-iphonesimulator'
  
  ld: warning: ignoring file /Volumes/DISC/Radio App/Running copy/WR1.9/Common/build/Release-iphonesimulator/libCommon.a, file was built for archive which is not the architecture being linked (armv6)
  
  ld: duplicate symbol _fourxm_decoder in /Volumes/DISC/Radio App/libffmpegLib.a(4xm.o) and /Volumes/DISC/Radio App/libffmpegLib.a(4xm.o) for architecture armv6
  
  collect2: ld returned 1 exit status
  
  Command /Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc-4.2 failed with exit code 1    

  So I think anybody of you may be successfully compiled and used this. If yes please give me some instructions to do this.

  Or if you can find the solution for the error. please let me know.

• iPhone - IMA WAV ADPCM audio stream for iOS

  21 May 2013, by Siriss

  I am trying to write an app for a school project that will play a video stream of the lab. They use Foscam cameras, and from what I understand they only stream audio in FFMPEG and VLC (a wrapper of FFMPEG and others, correct?). I can play the video stream in a UIWebView just fine, but I can't figure out how to get audio to work. I have read a bunch of post on here about the different audio stream options, but none support this format. I have also looked into VLCKit, but that seems to only work in OS X, not iOS.

  Is there a Framework, or Kit that can stream IMA WAV ADPCM audio from a VLC/FFMPEG file, or does someone know of a better way to get audio from a Foscam?

  EDIT - I know more about the stream and I have tried a few things. I tried AVPlayer, but discovered Audio FIle Stream and Audio Queue Services but can't find a good tutorial.

  I also found THIS site, and tried the project with my stream and it did not work.

• How to play a FFMPEG video in all platforms(Window, iPad/iPhone, and Android)

  11 December 2014, by flight

  I have created a video through screen capturing using FFMPEG.
  FFMPEG Command is:

  "ffmpeg -f dshow -i video=\"screen-capture-recorder\" -r 15 -t 20 SC1.mp4"

  This video is playing in only VLC player. Need to play this video in all player and on all platforms.

  Please recommend a feasible approach to solve this problem.