av_opt_get_sample_fmt   93 libavfilter/af_aresample.c     av_opt_get_sample_fmt(aresample->swr, "osf", 0, &out_format);
av_opt_get_sample_fmt  164 libavfilter/af_aresample.c     av_opt_get_sample_fmt(aresample->swr, "osf", 0, &out_format);
av_opt_get_sample_fmt  748 libavutil/opt.h int av_opt_get_sample_fmt(void *obj, const char *name, int search_flags, enum AVSampleFormat *out_fmt);