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• Compiling FFmpeg lib and add it to NDK sources on Windows8

  2 février 2021, par Nativ

  I've seen some articles about how to compile and uses FFmpeg for Android.

  


  These are 2 good examples - example1 and example2

  


  Unfortunately, non off them, or others I found helped me. In those two examples a build_android.sh is created and configure the FFmpeg's configuraion file and call to make. Every time when I'm running the script I'm getting the following error :

  


  c:\android\development\android-ndk-r9\sources\ffmpeg>sh build_android.sh
c:/android/development/android-ndk-r9/toolchains/arm-linux-androideabi-4.8/prebu
ilt/windows-x86_64/arm-linux-androideabi/bin/bin/arm-linux-androideabi-gcc is un

able to create an executable file.
C compiler test failed.

If you think configure made a mistake, make sure you are using the latest
version from Git.  If the latest version fails, report the problem to the
ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
Include the log file "config.log" produced by configure as this will help
solving the problem.
Makefile:2: config.mak: No such file or directory
Makefile:49: /common.mak: No such file or directory
Makefile:92: /libavutil/Makefile: No such file or directory
Makefile:92: /library.mak: No such file or directory
Makefile:169: /doc/Makefile: No such file or directory
Makefile:170: /tests/Makefile: No such file or directory
make: *** No rule to make target `/tests/Makefile'.  Stop.
Makefile:2: config.mak: No such file or directory


  


  If someone encountered and solved this issue it'll be much appreciated !

  


  After trying the suggested script I ran into a new problem that I couldn't solved, this is the output of the script :

  


  .... Enabled components list....

  


  In the end of the list I got the following :

  


  Enabled indevs :
dv1394 v4l2i
fbdev

  


  Enabled outdevs :
fbdev v4l2

  


  License : LGPL version 2.1 or later
Creating config.mak, config.h, and doc/config.texi...

  


  WARNING : C :/android/development/android-ndk-r9/toolchains/arm-linux-androideabi-
4.8/prebuilt/windows-x86_64/bin/arm-linux-androideabi-pkg-config not found, libr
ary detection may fail.
make : *** No rule to make target libavfilter/libavfilter.so', needed by all-ye
s'. Stop.
make : *** No rule to make target install-libavfilter-shared', needed by instal
l-libs-yes'. Stop.

  


• Android FFMPEG example to get frames from video using NDK

  22 avril 2016, par Mihir Shah

  I want to develop video merge application in android. I just able to generate ffmpeg.so file using NDK and JNI. But now I want to get frames of input video(around 15 sec.). Any one have an idea how to get the frames from video using ffmpeg ? Is there direct native method available for that to get frames in ffmpeg ? And how to pass command from java class to native mathod to perform video merging functionality ? Just give me solution for that.

• SetInodeAttributes error when creating a file inside bucket

  19 août 2022, par Turgut

  I've made a C++ program that lives in gke and takes some videos as input using ffmpeg, then does something with that input using opengl,finally it encodes those edited videos as a single output. Normally the program works perfectly fine on my local machine, it encodes just as I want it to with no warnings whatsoever. But I want it to encode that video directly to the cloud using a gcsfuse bucket. I've succesfully mounted the bucket and it seems to create the file at the start of my programs run. But when the run is over it's suppose to finish the encoding and finilize the video file. However when it reaches the end it gives off this error on the terminal where I run the gcsfuse command :

  


  2022/08/19 21:38:15.477586 SetInodeAttributes: input/output error, SetMtime: UpdateObject: not retrying UpdateObject("c36c2633-d4ee-4d37-825f-88ae54b86100.mp4"): gcs.NotFoundError: googleapi: Error 404: No such object: development-videoo-storage1/c36c2633-d4ee-4d37-825f-88ae54b86100.mp4, notFound
fuse: 2022/08/19 21:38:15.477660 *fuseops.SetInodeAttributesOp error: input/output error
2022/08/19 21:38:15.637346 SetInodeAttributes: input/output error, SetMtime: UpdateObject: not retrying UpdateObject("c36c2633-d4ee-4d37-825f-88ae54b86100"): gcs.NotFoundError: googleapi: Error 404: No such object: development-videoo-storage1/c36c2633-d4ee-4d37-825f-88ae54b86100, notFound
fuse: 2022/08/19 21:38:15.637452 *fuseops.SetInodeAttributesOp error: input/output error
2022/08/19 21:38:15.769569 GetInodeAttributes: input/output error, clobbered: StatObject: not retrying StatObject("c36c2633-d4ee-4d37-825f-88ae54b86100.mp4"): gcs.NotFoundError: googleapi: Error 404: No such object: development-videoo-storage1/c36c2633-d4ee-4d37-825f-88ae54b86100.mp4, notFound
fuse: 2022/08/19 21:38:15.769659 *fuseops.GetInodeAttributesOp error: input/output error


  


  At the end I end up with a file with the same size as my desired output but with an invalid video with no frames in it.

  


  I'm using a service account to activate my bucket, I can read files just fine and my service account has every permission it needs, here is how I mount my bucket :

  


  GOOGLE_APPLICATION_CREDENTIALS=./service-account.json gcsfuse -o nonempty --foreground cloud-storage-name /media


  


  I'm using ubuntu 22.04