<html dir="ltr"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> </head> <body style="text-align:left; direction:ltr;"> <div>I switched to using ndk 19, but openh264 won't compile with it. I had the same problem when I used the ndk in android studio and I had to hack the ndk's configuration to get it to compile. I'm using the 1.16.0 branch of cerbero. Is there a simpler change that can be done to fix this?</div> <div><br> </div> <div>On Tue, 2019-07-02 at 19:30 +0000, Carl Blake wrote:</div> <blockquote type="cite" style="margin:0 0 0 .8ex; border-left:2px #729fcf solid;padding-left:1ex"> <div>I managed to get my system to compile gstreamer using cerbero while linked to the android studio ndk r19. Unfortunately, I get the same error I reported before when I compile my app in android studio.</div> <div><br> </div> <div>I'm not certain what to do at this point. I've checked the android studio logs and everything looks right. It looks like it's finding the ndk libraries and the gstreamer libraries; it's just having this problem with __register_atfork.</div> <div><br> </div> <div>I'll look at changing cerbero to use ndk 19 per your suggestion.</div> <div><br> </div> <div>Carl</div> <div><br> </div> <div>On Tue, 2019-07-02 at 13:20 -0500, Andrew Esh wrote:</div> <blockquote type="cite" style="margin:0 0 0 .8ex; border-left:2px #729fcf solid;padding-left:1ex"> <div dir="ltr">I am in the midst of updating Cerbero to use NDK r20. Here is the change I made to update which NDK is being used by Cerbero. You would have to do the same this with NDK 19. <div><br> </div> <div><a href="https://gitlab.freedesktop.org/andrewes/cerbero/commit/963f7b3ba859e029050b6d7f815e9be89774f821">https://gitlab.freedesktop.org/andrewes/cerbero/commit/963f7b3ba859e029050b6d7f815e9be89774f821</a><br> </div> <div><br> </div> <div>NOTE: The checksums in cerbero/bootstrap/android.py are sha256sum. You would have to supply the sha256sum for the NDK 19 file(s) you reference in that file.</div> </div> <br> <div class="gmail_quote"> <div dir="ltr" class="gmail_attr">On Tue, Jul 2, 2019 at 11:45 AM Carl Blake <<a href="mailto:carlb@williamsav.com">carlb@williamsav.com</a>> wrote:<br> </div> <blockquote type="cite" style="margin:0 0 0 .8ex; border-left:2px #729fcf solid;padding-left:1ex"> I'm pretty sure I'm linking to libc, or at least I am when I use<br> gstreamer 1.16.0 downloaded binaries. The problem occurs when I use<br> gstreamer 1.16.0 compiled using cerbero.<br> <br> I'm having some difficulty figuring out what libraries are being linked<br> because of how android studio hides things. I'm looking through make<br> files to try and figure it out.<br> <br> I think part of the problem is that android studio is using ndk r19 and<br> gstreamer compiled with cerbero wants to use ndk r18. I attempted to<br> change android studio to use the ndk r18 cerbero is using, but then I<br> couldn't get anything to link. For example, android studio could no<br> longer even find crtbegin_so.o. So now I'm trying to get cerbero to<br> compile using android studio's ndk r19.<br> <br> I didn't think this would be this difficult. I suspect I have<br> something wrong with my setup.<br> <br> ----------------------------------------------------<br> <br> Andrew Esh andrew.esh at <a href="http://qterics.com" rel="noreferrer" target="_blank"> qterics.com</a> wrote:<br> <br> Do you have the API specific library path as a -L argument to your<br> linker?<br> Here's what I found:<br> <br> andrewes at<br> ubuntu:~/Android/Sdk/ndk/20.0.5594570/toolchains/llvm/prebuilt/linux-<br> x86_64/sysroot/usr/lib/aarch64-linux-android/23$<br> for file in * ; do echo $file; objdump -x $file | grep register_atfork;<br> done<br> crtbegin_dynamic.o<br> 0000000000000000 *UND* 0000000000000000 __register_atfork<br> 0000000000000080 UNKNOWN __register_atfork<br> crtbegin_so.o<br> 0000000000000000 *UND* 0000000000000000 __register_atfork<br> 0000000000000044 UNKNOWN __register_atfork<br> crtbegin_static.o<br> 0000000000000000 *UND* 0000000000000000 __register_atfork<br> 0000000000000080 UNKNOWN __register_atfork<br> ...<br> libc.a<br> 4 .text.__register_atfork<br> 0000009c 0000000000000000 0000000000000000<br> 00000128 2**2<br> 5 .text.__unregister_atfork<br> 000000a0 0000000000000000 0000000000000000<br> 000001c4 2**2<br> 0000000000000000 l .text.__register_atfork 0000000000000000 $x.3<br> 0000000000000000 l .text.__unregister_atfork 0000000000000000<br> $x.4<br> ...<br> libc.so<br> 000000000000d144 g F .text 0000000000000004<br> __register_atfork<br> <br> (Note the path in my CLI prompt.) So, linking with either one of those<br> files will provide the symbol. Perhaps you are getting your libc.so<br> from<br> another place?<br> <br> On Fri, Jun 28, 2019 at 6:49 AM Carl Blake <carlb at <a href="http://williamsav.com" rel="noreferrer" target="_blank"> williamsav.com</a>><br> wrote:<br> <br> > I have an android app being compiled with gstreamer. When I use<br> > gstreamer 1.16.0 from the download I'm able to compile the app<br> without<br> > any problems. When I attempt to use gstreamer compiled using cerbero<br> > (1.16.0) I get the following compilation error:<br> ><br> > Build command failed.<br> > Error while executing process /home/cdb/Android/Sdk/ndk-bundle/ndk-<br> > build with arguments {NDK_PROJECT_PATH=null<br> > APP_BUILD_SCRIPT=/home/cdb/WaveCAST_Receiver/app/jni/Android.mk<br> > NDK_APPLICATION_MK=/home/cdb/WaveCAST_Receiver/app/jni/Application.mk<br> > APP_ABI=x86_64 NDK_ALL_ABIS=x86_64 NDK_DEBUG=1 APP_PLATFORM=android-<br> 23<br> ><br> NDK_OUT=/home/cdb/WaveCAST_Receiver/app/build/intermediates/ndkBuild/de<br> > bug/obj<br> ><br> NDK_LIBS_OUT=/home/cdb/WaveCAST_Receiver/app/build/intermediates/ndkBui<br> > ld/debug/lib NDK_APPLICATION_MK=jni/Application.mk<br> > GSTREAMER_JAVA_SRC_DIR=src GSTREAMER_ROOT_ANDROID=/opt/gstreamer-1.0-<br> > android-universal-1.16.0-wav GSTREAMER_ASSETS_DIR=src/assets<br> ><br> /home/cdb/WaveCAST_Receiver/app/build/intermediates/ndkBuild/debug/obj/<br> > local/x86_64/libgststart.so}<br> > [x86_64] Compile : gststart <= gststart.c<br> > [x86_64] Compile++ : gststart <= dummy.cpp<br> > GStreamer : [GEN] => gst-build-x86_64/gstreamer_android.c<br> > GStreamer : [COMPILE] => gst-build-x86_64/gstreamer_android.c<br> > GStreamer : [LINK] => gst-build-x86_64/libgstreamer_android.so<br> ><br> > /home/cdb/Android/Sdk/ndk-bundle/toolchains/llvm/prebuilt/linux-<br> > x86_64/sysroot/usr/lib/x86_64-linux-<br> > android/23/crtbegin_so.o:crtbegin_so.c:function pthread_atfork:<br> error:<br> > undefined reference to '__register_atfork'<br> > clang++: error: linker command failed with exit code 1 (use -v to see<br> > invocation)<br> > make: *** [buildsharedlibrary_x86_64] Error 1<br> ><br> > I'm using android studio 3.3.1.<br> ><br> > Does anybody have any ideas why this might be happening?<br> ><br> > Carl<br> ><br> ><br> > _______________________________________________<br> > gstreamer-android mailing list<br> > gstreamer-android at <a href="http://lists.freedesktop.org" rel="noreferrer" target="_blank"> lists.freedesktop.org</a><br> > <a href="https://lists.freedesktop.org/mailman/listinfo/gstreamer-android" rel="noreferrer" target="_blank"> https://lists.freedesktop.org/mailman/listinfo/gstreamer-android</a><br> <br> <br> <br> <pre>_______________________________________________</pre> <pre>gstreamer-android mailing list</pre> <pre><a href="mailto:gstreamer-android@lists.freedesktop.org">gstreamer-android@lists.freedesktop.org</a></pre> <pre><a href="https://lists.freedesktop.org/mailman/listinfo/gstreamer-android">https://lists.freedesktop.org/mailman/listinfo/gstreamer-android</a></pre> </blockquote> </div> </blockquote> </blockquote> </body> </html>