const int64_t *channel_layouts; ///< list of allowed channel layouts, terminated by -1
const int *channel_counts; ///< list of allowed channel counts, terminated by -1
int all_channel_counts; ///< if not 0, accept any channel count or layout
const int64_t *channel_layouts; ///< list of allowed channel layouts, terminated by -1
const int *channel_counts; ///< list of allowed channel counts, terminated by -1
int all_channel_counts; ///< if not 0, accept any channel count or layout