gf_file_ext_start 4217 applications/mp4box/main.c 		char *szExt = gf_file_ext_start(outfile);
gf_file_ext_start  706 applications/mp4client/extract.c 	prev = gf_file_ext_start(szPath);
gf_file_ext_start  714 applications/mp4client/extract.c 	prev = gf_file_ext_start(szOutPath);
gf_file_ext_start  182 include/gpac/tools.h char* gf_file_ext_start(const char* filename);
gf_file_ext_start  476 src/media_tools/media_export.c 		ext_start = gf_file_ext_start(dumper->out_name);