gf_isom_rewrite_text_sample 3291 include/gpac/internal/isomedia_dev.h GF_Err gf_isom_rewrite_text_sample(GF_ISOSample *samp, u32 sampleDescriptionIndex, u32 sample_dur);
gf_isom_rewrite_text_sample  486 src/isomedia/media.c 		e = gf_isom_rewrite_text_sample(*samp, *sIDX, (u32) dur);