CODEC_CAP_CHANNEL_CONF  852 extra_lib/include/ffmpeg_android/libavcodec/avcodec.h #define CODEC_CAP_CHANNEL_CONF     0x0400
CODEC_CAP_CHANNEL_CONF  842 extra_lib/include/libavcodec/avcodec.h #define CODEC_CAP_CHANNEL_CONF     0x0400