AV_CH_TOP_BACK_CENTER   46 libavcodec/tak.c     AV_CH_TOP_BACK_CENTER,
AV_CH_TOP_BACK_CENTER  390 libavdevice/pulse_audio_enc.c     if (channel_layout & AV_CH_TOP_BACK_CENTER)
AV_CH_TOP_BACK_CENTER  290 libavfilter/af_sofalizer.c         case AV_CH_TOP_BACK_CENTER:       azim[ch] = 180;
AV_CH_TOP_BACK_CENTER  412 libavfilter/f_ebur128.c                    AV_CH_TOP_BACK_LEFT|AV_CH_TOP_BACK_CENTER|AV_CH_TOP_BACK_RIGHT| \
AV_CH_TOP_BACK_CENTER  111 libavutil/channel_layout.h #define AV_CH_LAYOUT_HEXADECAGONAL     (AV_CH_LAYOUT_OCTAGONAL|AV_CH_WIDE_LEFT|AV_CH_WIDE_RIGHT|AV_CH_TOP_BACK_LEFT|AV_CH_TOP_BACK_RIGHT|AV_CH_TOP_BACK_CENTER|AV_CH_TOP_FRONT_CENTER|AV_CH_TOP_FRONT_LEFT|AV_CH_TOP_FRONT_RIGHT)