int ffurl_alloc(URLContext **puc, const char *filename, int flags)
{
URLProtocol *up;
char proto_str[128], proto_nested[128], *ptr;
size_t proto_len = strspn(filename, URL_SCHEME_CHARS);
if (filename[proto_len] != ':' || is_dos_path(filename))
strcpy(proto_str, "file");
else
av_strlcpy(proto_str, filename, FFMIN(proto_len+1, sizeof(proto_str)));
av_strlcpy(proto_nested, proto_str, sizeof(proto_nested));
if ((ptr = strchr(proto_nested, '+')))
*ptr = '\0';
up = first_protocol;
while (up != NULL) {
if (!strcmp(proto_str, up->name))
return url_alloc_for_protocol (puc, up, filename, flags);
if (up->flags & URL_PROTOCOL_FLAG_NESTED_SCHEME &&
!strcmp(proto_nested, up->name))
return url_alloc_for_protocol (puc, up, filename, flags);
up = up->next;
}
*puc = NULL;
return AVERROR(ENOENT);
}
int ffurl_alloc(URLContext **puc, const char *filename, int flags,
const AVIOInterruptCB *int_cb)
{
URLProtocol *up = NULL;
char proto_str[128], proto_nested[128], *ptr;
size_t proto_len = strspn(filename, URL_SCHEME_CHARS);
if (!first_protocol) {
av_log(NULL, AV_LOG_WARNING, "No URL Protocols are registered. "
"Missing call to av_register_all()?\n");
}
if (filename[proto_len] != ':' && filename[proto_len] != ',' || is_dos_path(filename))
strcpy(proto_str, "file");
else
av_strlcpy(proto_str, filename, FFMIN(proto_len+1, sizeof(proto_str)));
if ((ptr = strchr(proto_str, ',')))
*ptr = '\0';
av_strlcpy(proto_nested, proto_str, sizeof(proto_nested));
if ((ptr = strchr(proto_nested, '+')))
*ptr = '\0';
while (up = ffurl_protocol_next(up)) {
if (!strcmp(proto_str, up->name))
return url_alloc_for_protocol (puc, up, filename, flags, int_cb);
if (up->flags & URL_PROTOCOL_FLAG_NESTED_SCHEME &&
!strcmp(proto_nested, up->name))
return url_alloc_for_protocol (puc, up, filename, flags, int_cb);
}
*puc = NULL;
return AVERROR_PROTOCOL_NOT_FOUND;
}
int url_alloc(URLContext **puc, const char *filename, int flags)
{
URLProtocol *up;
char proto_str[128], proto_nested[128], *ptr;
//ec: strspn - Calculate the length of the initial substring of s which only contain letters in accept
//ec: How about other symbol?Chinese etc.
size_t proto_len = strspn(filename, URL_SCHEME_CHARS);
if (filename[proto_len] != ':' || is_dos_path(filename))
strcpy(proto_str, "file");
else
av_strlcpy(proto_str, filename, FFMIN(proto_len+1, sizeof(proto_str)));
av_strlcpy(proto_nested, proto_str, sizeof(proto_nested));
if ((ptr = strchr(proto_nested, '+')))
*ptr = '\0';
up = first_protocol;
while (up != NULL) {
if (!strcmp(proto_str, up->name))
return url_alloc_for_protocol (puc, up, filename, flags);
if (up->flags & URL_PROTOCOL_FLAG_NESTED_SCHEME &&
!strcmp(proto_nested, up->name))
return url_alloc_for_protocol (puc, up, filename, flags);
up = up->next;
}
*puc = NULL;
return AVERROR(ENOENT);
}
int url_open_protocol (URLContext **puc, struct URLProtocol *up,
const char *filename, int flags)
{
int ret;
ret = url_alloc_for_protocol(puc, up, filename, flags);
if (ret)
goto fail;
ret = ffurl_connect(*puc);
if (!ret)
return 0;
fail:
ffurl_close(*puc);
*puc = NULL;
return ret;
}
int ffurl_alloc(URLContext **puc, const char *filename, int flags,
const AVIOInterruptCB *int_cb)
{
const URLProtocol *p = NULL;
p = url_find_protocol(filename);
if (p)
return url_alloc_for_protocol(puc, p, filename, flags, int_cb);
*puc = NULL;
if (av_strstart(filename, "https:", NULL))
av_log(NULL, AV_LOG_WARNING, "https protocol not found, recompile FFmpeg with "
"openssl, gnutls "
"or securetransport enabled.\n");
return AVERROR_PROTOCOL_NOT_FOUND;
}
int url_alloc(URLContext **puc, const char *filename, int flags)
{
URLProtocol *up;
char proto_str[128];
size_t proto_len = strspn(filename, URL_SCHEME_CHARS);
if (filename[proto_len] != ':' || is_dos_path(filename))
strcpy(proto_str, "file");
else
av_strlcpy(proto_str, filename, FFMIN(proto_len+1, sizeof(proto_str)));
up = first_protocol;
while (up != NULL) {
if (!strcmp(proto_str, up->name))
return url_alloc_for_protocol (puc, up, filename, flags);
up = up->next;
}
*puc = NULL;
return AVERROR(ENOENT);
}