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avio: add and use ffurl_protocol_next().

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This commit is contained in:
Anton Khirnov 2011-11-05 11:42:13 +01:00
parent 6ef350c16b
commit 163a31136d
2 changed files with 18 additions and 8 deletions
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19
libavformat/avio.c
View File

@ -30,6 +30,13 @@
#endif
#include "url.h"
static URLProtocol *first_protocol = NULL;
URLProtocol *ffurl_protocol_next(URLProtocol *prev)
{
return prev ? prev->next : first_protocol;
}
/** @name Logging context. */
/*@{*/
static const char *urlcontext_to_name(void *ptr)
@ -49,21 +56,19 @@ static const AVClass urlcontext_class = {
static int default_interrupt_cb(void);
URLProtocol *first_protocol = NULL;
int (*url_interrupt_cb)(void) = default_interrupt_cb;
#if FF_API_OLD_AVIO
URLProtocol *av_protocol_next(URLProtocol *p)
{
if(p) return p->next;
else return first_protocol;
return ffurl_protocol_next(p);
}
#endif
const char *avio_enum_protocols(void **opaque, int output)
{
URLProtocol **p = opaque;
*p = *p ? (*p)->next : first_protocol;
*p = ffurl_protocol_next(*p);
if (!*p) return NULL;
if ((output && (*p)->url_write) || (!output && (*p)->url_read))
return (*p)->name;
@ -225,7 +230,7 @@ int av_register_protocol2(URLProtocol *protocol, int size)
int ffurl_alloc(URLContext **puc, const char *filename, int flags,
const AVIOInterruptCB *int_cb)
{
URLProtocol *up;
URLProtocol *up = NULL;
char proto_str[128], proto_nested[128], *ptr;
size_t proto_len = strspn(filename, URL_SCHEME_CHARS);
@ -238,14 +243,12 @@ int ffurl_alloc(URLContext **puc, const char *filename, int flags,
if ((ptr = strchr(proto_nested, '+')))
*ptr = '\0';
up = first_protocol;
while (up != NULL) {
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);
up = up->next;
}
*puc = NULL;
return AVERROR(ENOENT);

7
libavformat/url.h
View File

@ -182,6 +182,13 @@ int ffurl_register_protocol(URLProtocol *protocol, int size);
*/
int ff_check_interrupt(AVIOInterruptCB *cb);
/**
* Iterate over all available protocols.
*
* @param prev result of the previous call to this functions or NULL.
*/
URLProtocol *ffurl_protocol_next(URLProtocol *prev);
/* udp.c */
int ff_udp_set_remote_url(URLContext *h, const char *uri);
int ff_udp_get_local_port(URLContext *h);