FLV_STEREO       1180 libavformat/flvdec.c         channels = (flags & FLV_AUDIO_CHANNEL_MASK) == FLV_STEREO ? 2 : 1;
FLV_STEREO        134 libavformat/flvenc.c                FLV_SAMPLESSIZE_16BIT | FLV_STEREO;
FLV_STEREO        182 libavformat/flvenc.c         flags |= FLV_STEREO;