ref: 58a980e4715f44abe4e4f424998abb1db09961ba
dir: /stream.c/
#include <u.h> #include <libc.h> #include "stream.h" extern Streamops ivfops, mcops, audops; static struct { char *name; Streamops *o; }ops[] = { {"ivf", &ivfops}, {"mc", &mcops}, {"audio", &audops}, }; Stream * Sopen(char *filename, int *num) { int i, failed; Stream *s; char *f; *num = 0; for(i = 0; i < nelem(ops); i++){ failed = 0; if((s = ops[i].o->open(filename, num, &failed)) != nil){ f = utfrrune(filename, '/'); if(f == nil) f = filename; snprint(s->info, sizeof(s->info), "%s [%s]", ops[i].name, f); return s; } if(failed){ werrstr("%s: %r", ops[i].name); return nil; } } werrstr("unknown format"); return nil; } void Sclose(Stream *s) { if(s == nil || s->type < 0) return; s->ops.close(s); s->type = -1; } int Sread(Stream *s, Streamframe *f) { if(s == nil || s->type < 0) return -1; return s->ops.read(s, f); }