M_LN2              34 extra_lib/include/ffmpeg_android/libavutil/mathematics.h #define M_LN2          0.69314718055994530942  /* log_e 2 */
M_LN2              34 extra_lib/include/libavutil/mathematics.h #define M_LN2          0.69314718055994530942  /* log_e 2 */