ffmpeg：libavformat/http.c:1435: error: undefined reference to 'inflateEnd'

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安卓动态库编译过程中遇到了一个ffmpeg相关的报错，具体信息如下：

libavformat/http.c:1435: error: undefined reference to 'inflateEnd'
libavformat/http.c:626: error: undefined reference to 'inflateEnd'
libavformat/http.c:627: error: undefined reference to 'inflateInit2_'
libavformat/http.c:632: error: undefined reference to 'zlibCompileFlags'
libavformat/http.c:1238: error: undefined reference to 'inflate'
libavformat/id3v2.c:963: error: undefined reference to 'uncompress'
libavformat/mov.c:3818: error: undefined reference to 'uncompress'
libavformat/rtmpproto.c:1077: error: undefined reference to 'inflateInit_'
libavformat/rtmpproto.c:1087: error: undefined reference to 'inflate'
libavformat/rtmpproto.c:1105: error: undefined reference to 'inflateEnd'
collect2: error: ld returned 1 exit status

解决：

添加链接库zlib，编译选项中加上 ：-lz