[Linphone-developers] Build error for open H264 when compliming for Android platform.

[jim]

Dear Developers,

I’m trying to compile the linphone sdk for Android with OpenH264, but I got error with it, any advice is appreciated!

I got the source code from github, and using the ndk-10rc, and export the ndk directory in env path.

I tried to config it using the following command:

./prepare.py --enable-non-free-codecs -DENABLE_OPENH264=YES armv7

 

And it seems to work properly,

-- Enabled features:

 * Unit tests , Build unit tests programs for belle-sip, mediastreamer2 and linphone.

 * Documentation , Enable documentation generation with Doxygen.

 * GPL third parties , Usage of GPL third-party code (FFmpeg and x264).

 * Non free codecs , Allow inclusion of non-free codecs in the build.

 * SRTP , SRTP media encryption support.

 * ZRTP , ZRTP media encryption support.

 * DTLS , DTLS media encryption support.

 * WebRTC AEC , WebRTC echo canceller support.

 * GSM , GSM audio encoding/decoding support.

 * iLBC , iLBC audio encoding/decoding support.

 * ISAC , ISAC audio encoding/decoding support.

 * OPUS , OPUS audio encoding/decoding support.

 * Silk , Silk audio encoding/decoding support.

 * Speex , Speex audio encoding/decoding support.

 * Video , Ability to capture and display video.

 * FFmpeg , Some video processing features via FFmpeg: JPEG encoding/decoding, video scaling, H264 decoding...

 * MKV , MKV playing and recording support.

 * OpenH264 , H.264 video encoding/decoding support with the openh264 library (require license).

 * VPX , VPX (VP8) video encoding/decoding support.

 * Mbedtls , Crypto stack implementation based on mbeddtls

 * NLS , Enable internationalization of Linphone and Liblinphone. (Only for the desktop target)

 * VCARD , Enable vCard 4 support Linphone and Liblinphone.

-- Disabled features:

 * Tunnel , Secure tunnel for SIP/RTP (require license).

 * RTP MAP , Always include rtpmap in SDP.

 * Belledonne Antlr , Do not build the Belledonne version of Antlr3c

 * WASAPI , Windows Audio Session API (WASAPI) sound card support.

 * AMRNB , AMR narrow-band audio encoding/decoding support (require license).

 * AMRWB , AMR wide-band audio encoding/decoding support (require license).

 * Codec2 , Codec2 audio encoding/decoding support.

 * G729 , G.729 audio encoding/decoding support (require license).

 * BV16 , BroadVoice 16 audio encoding/decoding support.

 * H263 , H263 video encoding/decoding support (require license).

 * H263p , H263+ video encoding/decoding support (require license).

 * MPEG4 , MPEG4 video encoding/decoding support (require license).

 * V4L , V4L camera driver.

 * X264 , H.264 video encoding support with the x264 library (require license).

 * PCAP , PCAP support.

 * Polarssl , Crypto stack implementation based on polarssl

 * Relative prefix , liblinphone and mediastreamer will look for their respective ressources relatively to their location.

-- Configuring done

But when I try to compile it, I got this error:

[ 88%] Performing post-installation for 'EP_openh264'

/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: warning for library: /Users/jimwei/Public/REM/linphone/linphone-android/linphone-android-release/liblinphone-sdk/android-armv7/lib/libopenh264.a the table of contents is empty (no object file members in the library define global symbols)

[ 88%] Completed 'EP_openh264'

[ 88%] Built target EP_openh264

Scanning dependencies of target EP_msopenh264

[ 88%] Creating directories for 'EP_msopenh264'

[ 88%] No download step for 'EP_msopenh264'

[ 88%] No patch step for 'EP_msopenh264'

[ 89%] No update step for 'EP_msopenh264'

[ 90%] Performing configure step for 'EP_msopenh264'

loading initial cache file /Users/jimwei/Public/REM/linphone/linphone-android/linphone-android-release/WORK/android-armv7//tmp/EP_msopenh264/EP_msopenh264-cache-Release.cmake

-- Using sysroot path: /Users/jimwei/DevTool/Android/android-ndk-r10c/platforms/android-14/arch-arm

-- Using sysroot path: /Users/jimwei/DevTool/Android/android-ndk-r10c/platforms/android-14/arch-arm

-- Looking for C++ include stdbool.h

-- Looking for C++ include stdbool.h - found

-- Looking for WelsCreateDecoder

-- Looking for WelsCreateDecoder - not found

CMake Error at /usr/local/Cellar/cmake/3.4.3/share/cmake/Modules/FindPackageHandleStandardArgs.cmake:148 (message):

  Could NOT find OpenH264 (missing: HAVE_WELS_CREATE_DECODER)

Call Stack (most recent call first):

  /usr/local/Cellar/cmake/3.4.3/share/cmake/Modules/FindPackageHandleStandardArgs.cmake:388 (_FPHSA_FAILURE_MESSAGE)

  cmake/FindOpenH264.cmake:64 (find_package_handle_standard_args)

  CMakeLists.txt:58 (find_package)

-- Configuring incomplete, errors occurred!

Thanks,

Jim

Justek Tech. LLC