ff_get_channel_layout 185 libavutil/channel_layout.c return ff_get_channel_layout(name, 1); ff_get_channel_layout 273 libavutil/internal.h uint64_t ff_get_channel_layout(const char *name, int compat); ff_get_channel_layout 415 libavutil/opt.c int64_t cl = ff_get_channel_layout(val, 0);