AAC_CHANNEL_BACK  302 libavcodec/aacdec.c         count_paired_channels(layout_map, tags, AAC_CHANNEL_BACK, &i);
AAC_CHANNEL_BACK  358 libavcodec/aacdec.c                          AAC_CHANNEL_BACK);
AAC_CHANNEL_BACK  365 libavcodec/aacdec.c                          AAC_CHANNEL_BACK);
AAC_CHANNEL_BACK  373 libavcodec/aacdec.c             .aac_position = AAC_CHANNEL_BACK
AAC_CHANNEL_BACK  693 libavcodec/aacdec.c         case AAC_CHANNEL_BACK:
AAC_CHANNEL_BACK  760 libavcodec/aacdec.c     decode_channel_map(layout_map + tags, AAC_CHANNEL_BACK,  gb, num_back);
AAC_CHANNEL_BACK   87 libavcodec/aacdectab.h     { { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_SCE, 1, AAC_CHANNEL_BACK }, },
AAC_CHANNEL_BACK   88 libavcodec/aacdectab.h     { { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 1, AAC_CHANNEL_BACK }, },
AAC_CHANNEL_BACK   89 libavcodec/aacdectab.h     { { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 1, AAC_CHANNEL_BACK }, { TYPE_LFE, 0, AAC_CHANNEL_LFE  }, },
AAC_CHANNEL_BACK   90 libavcodec/aacdectab.h     { { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 1, AAC_CHANNEL_FRONT }, { TYPE_CPE, 2, AAC_CHANNEL_BACK }, { TYPE_LFE, 0, AAC_CHANNEL_LFE  }, },