When the Android APP uses the ffmpeg library compiled by NDK, the undefined reference to & #39; posix_memalign & #39; error occurs. ndkffmpeg

When the Android APP uses the ffmpeg library compiled by NDK, the undefined reference to 'posix _ memalign 'error occurs. ndkffmpeg

When using the ffmpeg library compiled by NDK In the android program, the following error occurs:

Jni/libs/libavutil. a (mem. o): in function av_malloc: libavutil/mem. c: 95: error: undefined reference to 'posix _ memalign'

I checked it online and found that the android system didn't support posix at the beginning, and then added support for posix.

There are two main reasons for this problem:

1. The APP_PLATFORM specified during APP compilation is too low.

2. The NDK version used for APP compilation is too low.

 

Solution:

1. Check Application. mk in the jni directory to view APP_PLATFORM

This APP_PLATFORM must be a high (or equal to) version used when compiling ffmpeg with NDK)

Here I modify it from APP_PLATFORM: = android-10 to APP_PLATFORM: = android-17.

2. Check whether the NDK version for compiling ffmpeg is consistent with the NDK version used in the APP.

I upgraded from android-ndk-r9b version to android-ndk-r10e here

 

Command

2015.10.27

For more information, see http://www.cnblogs.com/42410/p/4915360.html. thank you!