AV_CH_BACK_CENTER   57 extra_lib/include/ffmpeg_android/libavutil/channel_layout.h #define AV_CH_BACK_CENTER            0x00000100
AV_CH_BACK_CENTER  279 extra_lib/include/ffmpeg_android/libavutil/channel_layout.h #define AV_CH_BACK_CENTER            0x00000100
AV_CH_BACK_CENTER   57 extra_lib/include/libavutil/channel_layout.h #define AV_CH_BACK_CENTER            0x00000100