AV_CH_SURROUND_DIRECT_LEFT   87 libavcodec/mlp_parser.c     AV_CH_SURROUND_DIRECT_LEFT|AV_CH_SURROUND_DIRECT_RIGHT, // LRsd
AV_CH_SURROUND_DIRECT_LEFT  177 libavcodec/mlpdec.c     AV_CH_SURROUND_DIRECT_LEFT, AV_CH_SURROUND_DIRECT_RIGHT, // LRsd
AV_CH_SURROUND_DIRECT_LEFT  401 libavdevice/pulse_audio_enc.c     if (channel_layout & AV_CH_SURROUND_DIRECT_LEFT)
AV_CH_SURROUND_DIRECT_LEFT  845 libavfilter/avfiltergraph.c #define CH_DIRECT_PAIR (AV_CH_SURROUND_DIRECT_LEFT | AV_CH_SURROUND_DIRECT_RIGHT)
AV_CH_SURROUND_DIRECT_LEFT  373 libavfilter/f_ebur128.c                    AV_CH_SURROUND_DIRECT_LEFT               |AV_CH_SURROUND_DIRECT_RIGHT)
AV_CH_SURROUND_DIRECT_LEFT  298 libavformat/mov_chan.c                                          AV_CH_SURROUND_DIRECT_LEFT  |
AV_CH_SURROUND_DIRECT_LEFT   81 libavresample/audio_mix_matrix.c         !even(layout & (AV_CH_SURROUND_DIRECT_LEFT | AV_CH_SURROUND_DIRECT_RIGHT)))