The VideoLAN Forums • Building VLC for iOS (info & questions)

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Building VLC for iOS (info & questions)

Posted: 19 Jan 2012 10:10

by CrapulaX

I am trying to build VLC for iOS and i am running in some difficulties ;o)

I gathered several pieces of information.

It seems there are 2 different methods to build :

a) Go to the http://www.videolan.org/vlc/download-ios.html web page, download the 3 archives :
- VLC-iOS-1.1.0-sources
- MediaLibraryKit-1.1.0-sources
- MobileVLC-1.1.0-sources
And then try to build them.

b) Use the method described on the wiki : http://wiki.videolan.org/MobileVLC where a script should take care of all the process

As vlc 1.2 is out, I choose to use the b) method.

Other threads on the forum that give some information that one may found helpfull:
- forum.videolan.org/viewtopic.php?f=12&t=90271
- forum.videolan.org/viewtopic.php?f=12&t=96167&p=319742&hilit=ios#p319742
- forum.videolan.org/viewtopic.php?f=12&t=94821&p=321644&hilit=ios#p321644

External links :
- stackoverflow.com/questions/6320053/building-mobilevlc-armc7-ffmpeg-issue
- github.com/ciphor/ffmpeg4ios [/url] (a ffmpeg build for iOS)

Tips for the wiki method :

use this command line to build using the latest SDK

Code: Select all

./buildMobileVLC.sh -k iphoneos5.0

add this line to /mobileVLC/ImportedSources/vlc/extras/contrib/bootstrap to avoid an error during compilation

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(line 318)
  EXTRA_LDFLAGS="${EXTRA_LDFLAGS} -isysroot ${IOS_SDK_ROOT}"

you may remove some external libs editing MobileVLC/ImportedSources/vlc/extras/contrib/src/Distributions/ios.mak

if the ffmpeg build fails, you can try editing MobileVLC/ImportedSources/vlc/extras/contrib/src/contrib-srcMak by adding those lines :

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	--disable-yasm \
	--disable-asm \

Questions :

Q1)
When using the wiki method, 'tools' are not built but according to the macosx build wiki page, we should build them first then external libs then vlc, so I am wondering if it is normal or not in the iOS context to skip this build...

Q2)
When using the wiki method, with how many .xcodeproj files shoud we deal ?
Here some of the 12 .xcodeproj files

MobileVLC.xcodeproj
MobileMediaLibraryKit.xcodeproj
VLCKit.xcodeproj
MobileVLCKit.xcodeproj
FRVLC.xcodeproj
vlc.xcodeproj

(and we could gather info on which one relies on which one that would be great)

Re: Building VLC for iOS (info & questions)

Posted: 19 Jan 2012 11:59

by Jean-Baptiste Kempf

1) the Mac build is using the new method and not the iOS one. iOS one should be updated...

2) all of them, I think.

Re: Building VLC for iOS (info & questions)

Posted: 19 Jan 2012 14:53

by CrapulaX

Thanks Jean-Baptiste.

I found some information http://git.videolan.org/?p=MobileVLC.gi ... TO;hb=HEAD about the process

Code: Select all

 WHAT IS HAPPENING
 
buildMobileVLC.sh will download vlc.git, MediaLibraryKit.git
in "ImportedSources" folder, and make sure we are correctly
linking them by adding links in "External".
 
Then it builds vlc and MobileVLCKit, MediaLibraryKit, and
then MobileVLC.
 
 You can build each target manually by doing:
 1. vlc
 Run
  $ cd ImportedSources/vlc; ./extras/package/ios/build.sh
 
 2. MobileVLCKit
  $ open ImportedSources/vlc/projects/macosx/framework/MobileVLCKit.xcodeproj
 
 3. MediaLibraryKit
  $ open ImportedSources/MediaLibraryKit/MobileMediaLibraryKit.xcodeproj
 
 4. MobileVLC
 $ open MobileVLC.xcodeproj

I am still stuck in step 1, I managed to build ffmpeg but the following command :
configure ( in vlc directory ) raises an error :

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configure: error: cannot find install-sh or install.sh in autotools "."/autotools

error that is confirmed in the config.log

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configure:2595: error: cannot find install-sh or install.sh in autotools "."/autotools

as the ./autotools directory does not contain any of those files, I am wondering if this error message is very explicit...
Am I supposed to find those files in this directory ?

Re: Building VLC for iOS (info & questions)

Posted: 19 Jan 2012 16:56

by CrapulaX

auto-answering to me ;o)

running a ./boostrap command in vlc root directory will create the required files in autotools

Re: Building VLC for iOS (info & questions)

Posted: 20 Jan 2012 00:34

by Jean-Baptiste Kempf

Yep.

Re: Building VLC for iOS (info & questions)

Posted: 20 Jan 2012 11:03

by CrapulaX

Ok, now I am stuck during the configure step.
when it checks compilators for cross compile

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configure: error: C preprocessor "/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/llvm-cpp-4.2  " fails sanity check

Re: Building VLC for iOS (info & questions)

Posted: 20 Jan 2012 11:27

by CrapulaX

commenting the "export CPP" line in build.sh allows to go further.

(the problem seems to be related to -E parameter and auto-detection of the compiler to use)
(i found useful info here : http://stackoverflow.com/questions/8478 ... ocessor-fa )

Adding the -E flag allows to go further

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export CXXCPP="${DEVROOT}/usr/bin/c++ -E"

(i am not 100% sure this will not cause problems later ;O° )

Now I am stuck here :

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checking for strtoll... no
checking for swab... no
checking for tdestroy... no
checking for fdatasync... no
checking for working strcoll... no
checking for accept4... no
checking for pipe2... no
checking for eventfd... no
checking for vmsplice... no
checking for sched_getaffinity... no
checking for library containing poll... no
configure: error: poll() is required.

details in config.log

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ld: library not found for -lcrt1.10.5.o

the lib exists but only for simulator :

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locate  crt1.10.5.o
/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator3.2.sdk/usr/lib/crt1.10.5.o
/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator4.0.sdk/usr/lib/crt1.10.5.o
/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator4.1.sdk/usr/lib/crt1.10.5.o
/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator4.2.sdk/usr/lib/crt1.10.5.o
/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator4.3.sdk/usr/lib/crt1.10.5.o
/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator5.0.sdk/usr/lib/crt1.10.5.o
/Developer/SDKs/MacOSX10.6.sdk/usr/lib/crt1.10.5.o
/SDKs/MacOSX10.5.sdk/usr/lib/crt1.10.5.o
/SDKs/MacOSX10.6.sdk/usr/lib/crt1.10.5.o
/usr/lib/crt1.10.5.o

Why does it tries to link (or test linking) against 10.5 stuff as the target is iPhone not simulator...

An another error in config.log is

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-mmacosx-version-min not allowed with -miphoneos-version-min

that makes me think there is a problem in the script, 'miphoneos' is set explictly in build.sh but 'macosx-version-min' does not appear but seems to be added automatically ...

Re: Building VLC for iOS (info & questions)

Posted: 20 Jan 2012 23:44

by CrapulaX

I suspect that there is a mismatch between the mobilevlc build script and the 2.1.0 vlc

The mobilevlc build script set a -disable-mac-osx-defaults that seems to be not recognized any more and this conflicts because then when we end up with two flags : one for macosx and one for iphone, so during the configure process, an error is raised because it can not detect endianess

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configure: WARNING: unrecognized options: --enable-static-modules, --disable-macosx-defaults, --disable-macosx-qtcapture, --disable-remoteosd

Re: Building VLC for iOS (info & questions)

Posted: 21 Jan 2012 11:43

by CrapulaX

Still trying ;o)
Now I got a new error :

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libvlc configuration
--------------------
version               : 2.1.0-git
system                : darwin
architecture          : arm
optimizations         : yes
build vlc executable  : no

To build vlc and its plugins, type `./compile' or `make'.
[info] Building libvlc
make  all-recursive
Making all in compat
make  all-am
make[3]: Nothing to be done for `all-am'.
Making all in doc
make[2]: Nothing to be done for `all'.
Making all in po
Making all in share
  GEN    vlc.desktop
Making all in src
  GEN    stamp-revision
make  all-recursive
Making all in .
  CCLD   libvlccore.la
Undefined symbols for architecture armv7:
  "_vlc_poll", referenced from:
     -exported_symbol[s_list] command line option
ld: symbol(s) not found for architecture armv7
collect2: ld returned 1 exit status
make[4]: *** [libvlccore.la] Error 1
make[3]: *** [all-recursive] Error 1
make[2]: *** [all] Error 2
make[1]: *** [all-recursive] Error 1
make: *** [all] Error 2

The libvlc configuration message says that the architecture is 'arm', is this enough or is this should be armv6/armv7 ?

Re: Building VLC for iOS (info & questions)

Posted: 21 Jan 2012 16:51

by CrapulaX

I tried to rebuild for armv6 but it fails when building ffmpeg.

Anyone to team up to build vlc for iOS ?

Re: Building VLC for iOS (info & questions)

Posted: 21 Jan 2012 19:18

by CrapulaX

removing vlc-poll from src/libvlccore.sym allows to go further.

adding "--disable-macosx-qtkit" to the build script (instead of --disable-macosx-qtcapture) allows to go further

now I am stuck with a bunch of errors when compiling vlc/modules/access/avio files (curiously setting --disable-avio does not seem to have an effect to bypass the compilation of this module)

Re: Building VLC for iOS (info & questions)

Posted: 22 Jan 2012 15:27

by CrapulaX

After editing the build script, here's a new compilation error :

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Making all in audio_filter
make  all-am
  CC     libaudiobargraph_a_plugin_la-audiobargraph_a.lo
  CC     libchorus_flanger_plugin_la-chorus_flanger.lo
  CC     libcompressor_plugin_la-compressor.lo
  CC     libequalizer_plugin_la-equalizer.lo
  CC     libkaraoke_plugin_la-karaoke.lo
  CC     libnormvol_plugin_la-normvol.lo
  CC     libparam_eq_plugin_la-param_eq.lo
  CC     libscaletempo_plugin_la-scaletempo.lo
  CXX    libspatializer_plugin_la-allpass.lo
arm-apple-darwin10-llvm-g++-4.2: }: No such file or directory
make[4]: *** [libspatializer_plugin_la-allpass.lo] Error 1
make[4]: *** Waiting for unfinished jobs....
make[3]: *** [all] Error 2
make[2]: *** [all-recursive] Error 1
make[1]: *** [all-recursive] Error 1
make: *** [all] Error 2

This module contains some C++ files, and there are the first C++ files to be processed...

Re: Building VLC for iOS (info & questions)

Posted: 23 Jan 2012 10:08

by CrapulaX

The compilation now breaks when processing the opengl stuff. (ios-vout)

several values such as GL_LUMINANCE16 are not defined in OpenGL ES ("ES1/gl.h" or "ES2/gl.h" iPhone framework ) but only in Macosx frameworks...

I decided to disable this module to go on with the overall process.

The " BUILD AGGREGATE TARGET Aggregate static plugins OF PROJECT MobileVLCKit WITH CONFIGURATION Release " step finished with a "** BUILD SUCCEEDED **" message.

Now, the next step is "=== BUILD NATIVE TARGET MobileVLCKit OF PROJECT MobileVLCKit WITH CONFIGURATION Release ===" when the compilation breaks on the following errors :

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=== BUILD NATIVE TARGET MobileVLCKit OF PROJECT MobileVLCKit WITH CONFIGURATION Release ===
[...]
/Users/crapulax/Documents/DEVE/TDF/VLC/VLC_IOS/VLC_WIKI/MobileVLC_new/MobileVLC/ImportedSources/vlc/projects/macosx/framework/MobileVLCKit/vlc-plugins.h:3:21: error: a parameter list without types is only allowed in a function definition [3]
  vlc_declare_plugin(access_attachment);
                     ^
/Users/crapulax/Documents/DEVE/TDF/VLC/VLC_IOS/VLC_WIKI/MobileVLC_new/MobileVLC/ImportedSources/vlc/projects/macosx/framework/MobileVLCKit/vlc-plugins.h:4:2:{4:2-4:20}: warning: type specifier missing, defaults to 'int' [-Wimplicit-int,3]
  vlc_declare_plugin(access_avio);
  ^~~~~~~~~~~~~~~~~~

Re: Building VLC for iOS (info & questions)

Posted: 02 Feb 2012 21:08

by ggdiez

Hello,

Also I am trying to run VLC in IOS but I have the same problems as you.

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[info] Preparing build dirs
[info] Building
[info] Building vlc
[info] Building libvlc for the iOS
[info] Using armv7 with SDK version 5.0
[info] Building contrib for iOS in '/Users/Gonzalo/Proyectos/StreamingApp/MobileVLC2/MobileVLC/ImportedSources/vlc/contrib-builddir-ios-arm-apple-darwin10'
WARNING: This method of building third party libraries has been deprecated,
         and is not supported anymore.

Building from the /contrib folder is recommended instead of /extras/contrib.
make[1]: *** [.ffmpeg] Error 1
make: *** [using-src] Error 2

Has anyone got?
What are the steps?

Very thanks, I'm going crazy

Re: Building VLC for iOS (info & questions)

Posted: 06 Feb 2012 18:10

by Jean-Baptiste Kempf

A lot of work is needed to revive this port.

Re: Building VLC for iOS (info & questions)

Posted: 10 Mar 2012 20:02

by tittbit

i could help. but its not a small project, it involves a lot if work, no body wants to spend his time in a project unless he is being paid for that

Re: Building VLC for iOS (info & questions)

Posted: 11 Mar 2012 07:54

by Rémi Denis-Courmont

Empirically, you nailed it. The only two folks that really worked on the iOS port were either paid or promoting their business.
On the other hand, I don't think anyone will invest in the iOS port since it cannot be distributed via the store currently.

Re: Building VLC for iOS (info & questions)

Posted: 12 Mar 2012 13:47

by Jean-Baptiste Kempf

There is a patch around, to do it.

Re: Building VLC for iOS (info & questions)

Posted: 11 Apr 2012 16:41

by sarkas

What would the patch be then? Can you point me there, please?