static void skip_spaces(const char **pp) { const char *p; p = *pp; while (redir_isspace(*p)) p++; *pp = p; }
/* dummy redirector format (used directly in av_open_input_file now) */ static int redir_probe(AVProbeData *pd) { const char *p; p = pd->buf; while (redir_isspace(*p)) p++; if (strstart(p, "http://", NULL) || strstart(p, "rtsp://", NULL)) return AVPROBE_SCORE_MAX; return 0; }
static int redir_read_header(AVFormatContext *s, AVFormatParameters *ap) { char buf[4096], *q; int c; AVFormatContext *ic = NULL; ByteIOContext *f = s->pb; /* parse each URL and try to open it */ c = url_fgetc(f); while (c != URL_EOF) { /* skip spaces */ for(;;) { if (!redir_isspace(c)) break; c = url_fgetc(f); } if (c == URL_EOF) break; /* record url */ q = buf; for(;;) { if (c == URL_EOF || redir_isspace(c)) break; if ((q - buf) < sizeof(buf) - 1) *q++ = c; c = url_fgetc(f); } *q = '\0'; //printf("URL='%s'\n", buf); /* try to open the media file */ if (av_open_input_file(&ic, buf, NULL, 0, NULL) == 0) break; } if (!ic) return AVERROR(EIO); *s = *ic; url_fclose(f); return 0; }
/* called from utils.c */ int redir_open(AVFormatContext **ic_ptr, ByteIOContext *f) { char buf[4096], *q; int c; AVFormatContext *ic = NULL; /* parse each URL and try to open it */ c = url_fgetc(f); while (c != URL_EOF) { /* skip spaces */ for(;;) { if (!redir_isspace(c)) break; c = url_fgetc(f); } if (c == URL_EOF) break; /* record url */ q = buf; for(;;) { if (c == URL_EOF || redir_isspace(c)) break; if ((q - buf) < sizeof(buf) - 1) *q++ = c; c = url_fgetc(f); } *q = '\0'; //printf("URL='%s'\n", buf); /* try to open the media file */ if (av_open_input_file(&ic, buf, NULL, 0, NULL) == 0) break; } *ic_ptr = ic; if (!ic) return AVERROR_IO; else return 0; }
static void get_word(char *buf, int buf_size, const char **pp) { const char *p; char *q; p = *pp; skip_spaces(&p); q = buf; while (!redir_isspace(*p) && *p != '\0') { if ((q - buf) < buf_size - 1) *q++ = *p; p++; } if (buf_size > 0) *q = '\0'; *pp = p; }