ff_data_to_hex     27 libavformat/internal.h char *ff_data_to_hex(char *buf, const uint8_t *src, int size);
ff_data_to_hex    123 libavformat/rdt.c     ff_data_to_hex(response, zres, 16);
ff_data_to_hex    154 libavformat/sdp.c     ff_data_to_hex(config + 9, c->extradata, c->extradata_size);